Avoid unannotated-fallthrough in hb-ot-layout-base-table.hh

Fixes https://github.com/harfbuzz/harfbuzz/issues/5290

.ci/build-win.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+set -ex
+
+if [ "$#" -lt 1 ]
+then
+  echo "Usage $0 ARCH (ARCH can be 32 or 64)"
+  exit 1
+fi
+
+ARCH=$1
+shift
+
+BUILD=build-win${ARCH}
+INSTALL=install-win${ARCH}
+DIST=harfbuzz-win${ARCH}
+
+meson setup \
+	--buildtype=release \
+	--prefix="${PWD}/${BUILD}/${INSTALL}" \
+	--cross-file=.ci/win${ARCH}-cross-file.txt \
+	--wrap-mode=default \
+	--strip \
+	-Dtests=enabled \
+	-Dcairo=enabled \
+	-Dcairo:fontconfig=disabled \
+	-Dcairo:freetype=disabled \
+	-Dcairo:dwrite=disabled \
+	-Dcairo:tests=disabled \
+	-Dglib=enabled \
+	-Dlibffi:tests=false \
+	-Dfreetype=disabled \
+	-Dicu=disabled \
+	-Dchafa=disabled \
+	-Dgdi=enabled \
+	-Ddirectwrite=enabled \
+	${BUILD} \
+	"$@"
+
+# building with all the cores won't work fine with CricleCI for some reason
+meson compile -C ${BUILD} -j3
+meson install -C ${BUILD}
+
+mkdir ${BUILD}/${DIST}
+cp ${BUILD}/${INSTALL}/bin/hb-*.exe ${BUILD}/${DIST}
+cp ${BUILD}/${INSTALL}/bin/*.dll ${BUILD}/${DIST}
+rm -f ${DIST}.zip
+(cd ${BUILD} && zip -r ../${DIST}.zip ${DIST})
+echo "${DIST}.zip is ready."

.ci/build-win32.sh

@@ -1,28 +0,0 @@
-#!/bin/bash
-set -e
-
-meson 	--cross-file=.ci/win32-cross-file.txt \
-	--wrap-mode=default \
-	-Dtests=disabled \
-	-Dcairo=enabled \
-	-Dcairo:fontconfig=disabled \
-	-Dcairo:freetype=disabled \
-	-Dcairo:dwrite=disabled \
-	-Dcairo:tests=disabled \
-	-Dglib=enabled \
-	-Dfreetype=disabled \
-	-Dgdi=enabled \
-	-Ddirectwrite=enabled \
-	win32build \
-	$@
-
-ninja -Cwin32build -j3 # building with all the cores won't work fine with CricleCI for some reason
-
-rm -rf win32build/harfbuzz-win32
-mkdir win32build/harfbuzz-win32
-cp win32build/util/hb-*.exe win32build/harfbuzz-win32
-find win32build -name '*.dll' -exec cp {} win32build/harfbuzz-win32 \;
-i686-w64-mingw32-strip win32build/harfbuzz-win32/*.{dll,exe}
-rm -f harfbuzz-win32.zip
-(cd win32build && zip -r ../harfbuzz-win32.zip harfbuzz-win32)
-echo "harfbuzz-win32.zip is ready."

.ci/build-win64.sh

@@ -1,28 +0,0 @@
-#!/bin/bash
-set -e
-
-meson 	--cross-file=.ci/win64-cross-file.txt \
-	--wrap-mode=default \
-	-Dtests=disabled \
-	-Dcairo=enabled \
-	-Dcairo:fontconfig=disabled \
-	-Dcairo:freetype=disabled \
-	-Dcairo:dwrite=disabled \
-	-Dcairo:tests=disabled \
-	-Dglib=enabled \
-	-Dfreetype=disabled \
-	-Dgdi=enabled \
-	-Ddirectwrite=enabled \
-	win64build \
-	$@
-
-ninja -Cwin64build -j3 # building with all the cores won't work fine with CricleCI for some reason
-
-rm -rf win64build/harfbuzz-win64
-mkdir win64build/harfbuzz-win64
-cp win64build/util/hb-*.exe win64build/harfbuzz-win64
-find win64build -name '*.dll' -exec cp {} win64build/harfbuzz-win64 \;
-x86_64-w64-mingw32-strip win64build/harfbuzz-win64/*.{dll,exe}
-rm -f harfbuzz-win64.zip
-(cd win64build && zip -r ../harfbuzz-win64.zip harfbuzz-win64)
-echo "harfbuzz-win64.zip is ready."

.ci/publish_release_artifact.sh

@@ -11,12 +11,11 @@ fi
 if ! hash ghr 2> /dev/null; then
 	_GHR_VER=v0.14.0
 	_GHR=ghr_${_GHR_VER}_linux_amd64
-	mkdir -p $HOME/.local/bin
 	curl -sfL https://github.com/tcnksm/ghr/releases/download/$_GHR_VER/$_GHR.tar.gz |
-		tar xz -C $HOME/.local/bin --strip-components=1 $_GHR/ghr
+		tar xz -C . --strip-components=1 $_GHR/ghr
 fi
 
-ghr -replace \
+./ghr -replace \
 	-u $CIRCLE_PROJECT_USERNAME \
 	-r $CIRCLE_PROJECT_REPONAME \
 	$CIRCLE_TAG \

.ci/requirements-fonttools.txt

@@ -4,47 +4,55 @@
 #
 #    pip-compile --generate-hashes .ci/requirements-fonttools.in
 #
-fonttools==4.53.1 \
-    --hash=sha256:02569e9a810f9d11f4ae82c391ebc6fb5730d95a0657d24d754ed7763fb2d122 \
-    --hash=sha256:0679a30b59d74b6242909945429dbddb08496935b82f91ea9bf6ad240ec23397 \
-    --hash=sha256:10f5e6c3510b79ea27bb1ebfcc67048cde9ec67afa87c7dd7efa5c700491ac7f \
-    --hash=sha256:2af40ae9cdcb204fc1d8f26b190aa16534fcd4f0df756268df674a270eab575d \
-    --hash=sha256:32f029c095ad66c425b0ee85553d0dc326d45d7059dbc227330fc29b43e8ba60 \
-    --hash=sha256:35250099b0cfb32d799fb5d6c651220a642fe2e3c7d2560490e6f1d3f9ae9169 \
-    --hash=sha256:3b3c8ebafbee8d9002bd8f1195d09ed2bd9ff134ddec37ee8f6a6375e6a4f0e8 \
-    --hash=sha256:4824c198f714ab5559c5be10fd1adf876712aa7989882a4ec887bf1ef3e00e31 \
-    --hash=sha256:5ff7e5e9bad94e3a70c5cd2fa27f20b9bb9385e10cddab567b85ce5d306ea923 \
-    --hash=sha256:651390c3b26b0c7d1f4407cad281ee7a5a85a31a110cbac5269de72a51551ba2 \
-    --hash=sha256:6e08f572625a1ee682115223eabebc4c6a2035a6917eac6f60350aba297ccadb \
-    --hash=sha256:6ed170b5e17da0264b9f6fae86073be3db15fa1bd74061c8331022bca6d09bab \
-    --hash=sha256:73379d3ffdeecb376640cd8ed03e9d2d0e568c9d1a4e9b16504a834ebadc2dfb \
-    --hash=sha256:75a157d8d26c06e64ace9df037ee93a4938a4606a38cb7ffaf6635e60e253b7a \
-    --hash=sha256:791b31ebbc05197d7aa096bbc7bd76d591f05905d2fd908bf103af4488e60670 \
-    --hash=sha256:7b6b35e52ddc8fb0db562133894e6ef5b4e54e1283dff606fda3eed938c36fc8 \
-    --hash=sha256:84ec3fb43befb54be490147b4a922b5314e16372a643004f182babee9f9c3407 \
-    --hash=sha256:8959a59de5af6d2bec27489e98ef25a397cfa1774b375d5787509c06659b3671 \
-    --hash=sha256:9dfdae43b7996af46ff9da520998a32b105c7f098aeea06b2226b30e74fbba88 \
-    --hash=sha256:9e6ceba2a01b448e36754983d376064730690401da1dd104ddb543519470a15f \
-    --hash=sha256:9efd176f874cb6402e607e4cc9b4a9cd584d82fc34a4b0c811970b32ba62501f \
-    --hash=sha256:a1c7c5aa18dd3b17995898b4a9b5929d69ef6ae2af5b96d585ff4005033d82f0 \
-    --hash=sha256:aae7bd54187e8bf7fd69f8ab87b2885253d3575163ad4d669a262fe97f0136cb \
-    --hash=sha256:b21952c092ffd827504de7e66b62aba26fdb5f9d1e435c52477e6486e9d128b2 \
-    --hash=sha256:b96cd370a61f4d083c9c0053bf634279b094308d52fdc2dd9a22d8372fdd590d \
-    --hash=sha256:becc5d7cb89c7b7afa8321b6bb3dbee0eec2b57855c90b3e9bf5fb816671fa7c \
-    --hash=sha256:bee32ea8765e859670c4447b0817514ca79054463b6b79784b08a8df3a4d78e3 \
-    --hash=sha256:c6e7170d675d12eac12ad1a981d90f118c06cf680b42a2d74c6c931e54b50719 \
-    --hash=sha256:c818c058404eb2bba05e728d38049438afd649e3c409796723dfc17cd3f08749 \
-    --hash=sha256:c8696544c964500aa9439efb6761947393b70b17ef4e82d73277413f291260a4 \
-    --hash=sha256:c9cd19cf4fe0595ebdd1d4915882b9440c3a6d30b008f3cc7587c1da7b95be5f \
-    --hash=sha256:d4d0096cb1ac7a77b3b41cd78c9b6bc4a400550e21dc7a92f2b5ab53ed74eb02 \
-    --hash=sha256:d92d3c2a1b39631a6131c2fa25b5406855f97969b068e7e08413325bc0afba58 \
-    --hash=sha256:da33440b1413bad53a8674393c5d29ce64d8c1a15ef8a77c642ffd900d07bfe1 \
-    --hash=sha256:e013aae589c1c12505da64a7d8d023e584987e51e62006e1bb30d72f26522c41 \
-    --hash=sha256:e128778a8e9bc11159ce5447f76766cefbd876f44bd79aff030287254e4752c4 \
-    --hash=sha256:e54f1bba2f655924c1138bbc7fa91abd61f45c68bd65ab5ed985942712864bbb \
-    --hash=sha256:e5b708073ea3d684235648786f5f6153a48dc8762cdfe5563c57e80787c29fbb \
-    --hash=sha256:e8bf06b94694251861ba7fdeea15c8ec0967f84c3d4143ae9daf42bbc7717fe3 \
-    --hash=sha256:f08df60fbd8d289152079a65da4e66a447efc1d5d5a4d3f299cdd39e3b2e4a7d \
-    --hash=sha256:f1f8758a2ad110bd6432203a344269f445a2907dc24ef6bccfd0ac4e14e0d71d \
-    --hash=sha256:f677ce218976496a587ab17140da141557beb91d2a5c1a14212c994093f2eae2
+fonttools==4.57.0 \
+    --hash=sha256:03290e818782e7edb159474144fca11e36a8ed6663d1fcbd5268eb550594fd8e \
+    --hash=sha256:0425c2e052a5f1516c94e5855dbda706ae5a768631e9fcc34e57d074d1b65b92 \
+    --hash=sha256:05efceb2cb5f6ec92a4180fcb7a64aa8d3385fd49cfbbe459350229d1974f0b1 \
+    --hash=sha256:17168a4670bbe3775f3f3f72d23ee786bd965395381dfbb70111e25e81505b9d \
+    --hash=sha256:3122c604a675513c68bd24c6a8f9091f1c2376d18e8f5fe5a101746c81b3e98f \
+    --hash=sha256:34687a5d21f1d688d7d8d416cb4c5b9c87fca8a1797ec0d74b9fdebfa55c09ab \
+    --hash=sha256:3871349303bdec958360eedb619169a779956503ffb4543bb3e6211e09b647c4 \
+    --hash=sha256:39acf68abdfc74e19de7485f8f7396fa4d2418efea239b7061d6ed6a2510c746 \
+    --hash=sha256:3cf97236b192a50a4bf200dc5ba405aa78d4f537a2c6e4c624bb60466d5b03bd \
+    --hash=sha256:408ce299696012d503b714778d89aa476f032414ae57e57b42e4b92363e0b8ef \
+    --hash=sha256:44c26a311be2ac130f40a96769264809d3b0cb297518669db437d1cc82974888 \
+    --hash=sha256:46370ac47a1e91895d40e9ad48effbe8e9d9db1a4b80888095bc00e7beaa042f \
+    --hash=sha256:4dea5893b58d4637ffa925536462ba626f8a1b9ffbe2f5c272cdf2c6ebadb817 \
+    --hash=sha256:51d8482e96b28fb28aa8e50b5706f3cee06de85cbe2dce80dbd1917ae22ec5a6 \
+    --hash=sha256:541cb48191a19ceb1a2a4b90c1fcebd22a1ff7491010d3cf840dd3a68aebd654 \
+    --hash=sha256:579ba873d7f2a96f78b2e11028f7472146ae181cae0e4d814a37a09e93d5c5cc \
+    --hash=sha256:57e30241524879ea10cdf79c737037221f77cc126a8cdc8ff2c94d4a522504b9 \
+    --hash=sha256:69ab81b66ebaa8d430ba56c7a5f9abe0183afefd3a2d6e483060343398b13fb1 \
+    --hash=sha256:6e3e1ec10c29bae0ea826b61f265ec5c858c5ba2ce2e69a71a62f285cf8e4595 \
+    --hash=sha256:727ece10e065be2f9dd239d15dd5d60a66e17eac11aea47d447f9f03fdbc42de \
+    --hash=sha256:7339e6a3283e4b0ade99cade51e97cde3d54cd6d1c3744459e886b66d630c8b3 \
+    --hash=sha256:767604f244dc17c68d3e2dbf98e038d11a18abc078f2d0f84b6c24571d9c0b13 \
+    --hash=sha256:7a64edd3ff6a7f711a15bd70b4458611fb240176ec11ad8845ccbab4fe6745db \
+    --hash=sha256:81aa97669cd726349eb7bd43ca540cf418b279ee3caba5e2e295fb4e8f841c02 \
+    --hash=sha256:84c41ba992df5b8d680b89fd84c6a1f2aca2b9f1ae8a67400c8930cd4ea115f6 \
+    --hash=sha256:84fd56c78d431606332a0627c16e2a63d243d0d8b05521257d77c6529abe14d8 \
+    --hash=sha256:889e45e976c74abc7256d3064aa7c1295aa283c6bb19810b9f8b604dfe5c7f31 \
+    --hash=sha256:8e2e12d0d862f43d51e5afb8b9751c77e6bec7d2dc00aad80641364e9df5b199 \
+    --hash=sha256:967b65232e104f4b0f6370a62eb33089e00024f2ce143aecbf9755649421c683 \
+    --hash=sha256:9d077f909f2343daf4495ba22bb0e23b62886e8ec7c109ee8234bdbd678cf344 \
+    --hash=sha256:9d57b4e23ebbe985125d3f0cabbf286efa191ab60bbadb9326091050d88e8213 \
+    --hash=sha256:a1968f2a2003c97c4ce6308dc2498d5fd4364ad309900930aa5a503c9851aec8 \
+    --hash=sha256:a2a722c0e4bfd9966a11ff55c895c817158fcce1b2b6700205a376403b546ad9 \
+    --hash=sha256:a97bb05eb24637714a04dee85bdf0ad1941df64fe3b802ee4ac1c284a5f97b7c \
+    --hash=sha256:aff40f8ac6763d05c2c8f6d240c6dac4bb92640a86d9b0c3f3fff4404f34095c \
+    --hash=sha256:babe8d1eb059a53e560e7bf29f8e8f4accc8b6cfb9b5fd10e485bde77e71ef41 \
+    --hash=sha256:bbceffc80aa02d9e8b99f2a7491ed8c4a783b2fc4020119dc405ca14fb5c758c \
+    --hash=sha256:c59375e85126b15a90fcba3443eaac58f3073ba091f02410eaa286da9ad80ed8 \
+    --hash=sha256:ca2aed95855506b7ae94e8f1f6217b7673c929e4f4f1217bcaa236253055cb36 \
+    --hash=sha256:cc066cb98b912f525ae901a24cd381a656f024f76203bc85f78fcc9e66ae5aec \
+    --hash=sha256:cdef9a056c222d0479a1fdb721430f9efd68268014c54e8166133d2643cb05d9 \
+    --hash=sha256:d07f1b64008e39fceae7aa99e38df8385d7d24a474a8c9872645c4397b674481 \
+    --hash=sha256:d639397de852f2ccfb3134b152c741406752640a266d9c1365b0f23d7b88077f \
+    --hash=sha256:dff02c5c8423a657c550b48231d0a48d7e2b2e131088e55983cfe74ccc2c7cc9 \
+    --hash=sha256:e952c684274a7714b3160f57ec1d78309f955c6335c04433f07d36c5eb27b1f9 \
+    --hash=sha256:ea1e9e43ca56b0c12440a7c689b1350066595bebcaa83baad05b8b2675129d98 \
+    --hash=sha256:f022601f3ee9e1f6658ed6d184ce27fa5216cee5b82d279e0f0bde5deebece72 \
+    --hash=sha256:f0e9618630edd1910ad4f07f60d77c184b2f572c8ee43305ea3265675cbbfe7e \
+    --hash=sha256:f1d6bc9c23356908db712d282acb3eebd4ae5ec6d8b696aa40342b1d84f8e9e3 \
+    --hash=sha256:f4376819c1c778d59e0a31db5dc6ede854e9edf28bbfa5b756604727f7f800ac
     # via -r requirements-fonttools.in

.ci/requirements.in

@@ -1,5 +1,4 @@
 -r requirements-fonttools.in
-meson==1.5.2
-gcovr==5.0
+meson==1.7.0
 ninja
 setuptools # https://github.com/harfbuzz/harfbuzz/issues/4475

.ci/requirements.txt

@@ -4,242 +4,84 @@
 #
 #    pip-compile --allow-unsafe --generate-hashes --output-file=.ci/requirements.txt .ci/requirements.in
 #
-fonttools==4.53.1 \
-    --hash=sha256:02569e9a810f9d11f4ae82c391ebc6fb5730d95a0657d24d754ed7763fb2d122 \
-    --hash=sha256:0679a30b59d74b6242909945429dbddb08496935b82f91ea9bf6ad240ec23397 \
-    --hash=sha256:10f5e6c3510b79ea27bb1ebfcc67048cde9ec67afa87c7dd7efa5c700491ac7f \
-    --hash=sha256:2af40ae9cdcb204fc1d8f26b190aa16534fcd4f0df756268df674a270eab575d \
-    --hash=sha256:32f029c095ad66c425b0ee85553d0dc326d45d7059dbc227330fc29b43e8ba60 \
-    --hash=sha256:35250099b0cfb32d799fb5d6c651220a642fe2e3c7d2560490e6f1d3f9ae9169 \
-    --hash=sha256:3b3c8ebafbee8d9002bd8f1195d09ed2bd9ff134ddec37ee8f6a6375e6a4f0e8 \
-    --hash=sha256:4824c198f714ab5559c5be10fd1adf876712aa7989882a4ec887bf1ef3e00e31 \
-    --hash=sha256:5ff7e5e9bad94e3a70c5cd2fa27f20b9bb9385e10cddab567b85ce5d306ea923 \
-    --hash=sha256:651390c3b26b0c7d1f4407cad281ee7a5a85a31a110cbac5269de72a51551ba2 \
-    --hash=sha256:6e08f572625a1ee682115223eabebc4c6a2035a6917eac6f60350aba297ccadb \
-    --hash=sha256:6ed170b5e17da0264b9f6fae86073be3db15fa1bd74061c8331022bca6d09bab \
-    --hash=sha256:73379d3ffdeecb376640cd8ed03e9d2d0e568c9d1a4e9b16504a834ebadc2dfb \
-    --hash=sha256:75a157d8d26c06e64ace9df037ee93a4938a4606a38cb7ffaf6635e60e253b7a \
-    --hash=sha256:791b31ebbc05197d7aa096bbc7bd76d591f05905d2fd908bf103af4488e60670 \
-    --hash=sha256:7b6b35e52ddc8fb0db562133894e6ef5b4e54e1283dff606fda3eed938c36fc8 \
-    --hash=sha256:84ec3fb43befb54be490147b4a922b5314e16372a643004f182babee9f9c3407 \
-    --hash=sha256:8959a59de5af6d2bec27489e98ef25a397cfa1774b375d5787509c06659b3671 \
-    --hash=sha256:9dfdae43b7996af46ff9da520998a32b105c7f098aeea06b2226b30e74fbba88 \
-    --hash=sha256:9e6ceba2a01b448e36754983d376064730690401da1dd104ddb543519470a15f \
-    --hash=sha256:9efd176f874cb6402e607e4cc9b4a9cd584d82fc34a4b0c811970b32ba62501f \
-    --hash=sha256:a1c7c5aa18dd3b17995898b4a9b5929d69ef6ae2af5b96d585ff4005033d82f0 \
-    --hash=sha256:aae7bd54187e8bf7fd69f8ab87b2885253d3575163ad4d669a262fe97f0136cb \
-    --hash=sha256:b21952c092ffd827504de7e66b62aba26fdb5f9d1e435c52477e6486e9d128b2 \
-    --hash=sha256:b96cd370a61f4d083c9c0053bf634279b094308d52fdc2dd9a22d8372fdd590d \
-    --hash=sha256:becc5d7cb89c7b7afa8321b6bb3dbee0eec2b57855c90b3e9bf5fb816671fa7c \
-    --hash=sha256:bee32ea8765e859670c4447b0817514ca79054463b6b79784b08a8df3a4d78e3 \
-    --hash=sha256:c6e7170d675d12eac12ad1a981d90f118c06cf680b42a2d74c6c931e54b50719 \
-    --hash=sha256:c818c058404eb2bba05e728d38049438afd649e3c409796723dfc17cd3f08749 \
-    --hash=sha256:c8696544c964500aa9439efb6761947393b70b17ef4e82d73277413f291260a4 \
-    --hash=sha256:c9cd19cf4fe0595ebdd1d4915882b9440c3a6d30b008f3cc7587c1da7b95be5f \
-    --hash=sha256:d4d0096cb1ac7a77b3b41cd78c9b6bc4a400550e21dc7a92f2b5ab53ed74eb02 \
-    --hash=sha256:d92d3c2a1b39631a6131c2fa25b5406855f97969b068e7e08413325bc0afba58 \
-    --hash=sha256:da33440b1413bad53a8674393c5d29ce64d8c1a15ef8a77c642ffd900d07bfe1 \
-    --hash=sha256:e013aae589c1c12505da64a7d8d023e584987e51e62006e1bb30d72f26522c41 \
-    --hash=sha256:e128778a8e9bc11159ce5447f76766cefbd876f44bd79aff030287254e4752c4 \
-    --hash=sha256:e54f1bba2f655924c1138bbc7fa91abd61f45c68bd65ab5ed985942712864bbb \
-    --hash=sha256:e5b708073ea3d684235648786f5f6153a48dc8762cdfe5563c57e80787c29fbb \
-    --hash=sha256:e8bf06b94694251861ba7fdeea15c8ec0967f84c3d4143ae9daf42bbc7717fe3 \
-    --hash=sha256:f08df60fbd8d289152079a65da4e66a447efc1d5d5a4d3f299cdd39e3b2e4a7d \
-    --hash=sha256:f1f8758a2ad110bd6432203a344269f445a2907dc24ef6bccfd0ac4e14e0d71d \
-    --hash=sha256:f677ce218976496a587ab17140da141557beb91d2a5c1a14212c994093f2eae2
+fonttools==4.57.0 \
+    --hash=sha256:03290e818782e7edb159474144fca11e36a8ed6663d1fcbd5268eb550594fd8e \
+    --hash=sha256:0425c2e052a5f1516c94e5855dbda706ae5a768631e9fcc34e57d074d1b65b92 \
+    --hash=sha256:05efceb2cb5f6ec92a4180fcb7a64aa8d3385fd49cfbbe459350229d1974f0b1 \
+    --hash=sha256:17168a4670bbe3775f3f3f72d23ee786bd965395381dfbb70111e25e81505b9d \
+    --hash=sha256:3122c604a675513c68bd24c6a8f9091f1c2376d18e8f5fe5a101746c81b3e98f \
+    --hash=sha256:34687a5d21f1d688d7d8d416cb4c5b9c87fca8a1797ec0d74b9fdebfa55c09ab \
+    --hash=sha256:3871349303bdec958360eedb619169a779956503ffb4543bb3e6211e09b647c4 \
+    --hash=sha256:39acf68abdfc74e19de7485f8f7396fa4d2418efea239b7061d6ed6a2510c746 \
+    --hash=sha256:3cf97236b192a50a4bf200dc5ba405aa78d4f537a2c6e4c624bb60466d5b03bd \
+    --hash=sha256:408ce299696012d503b714778d89aa476f032414ae57e57b42e4b92363e0b8ef \
+    --hash=sha256:44c26a311be2ac130f40a96769264809d3b0cb297518669db437d1cc82974888 \
+    --hash=sha256:46370ac47a1e91895d40e9ad48effbe8e9d9db1a4b80888095bc00e7beaa042f \
+    --hash=sha256:4dea5893b58d4637ffa925536462ba626f8a1b9ffbe2f5c272cdf2c6ebadb817 \
+    --hash=sha256:51d8482e96b28fb28aa8e50b5706f3cee06de85cbe2dce80dbd1917ae22ec5a6 \
+    --hash=sha256:541cb48191a19ceb1a2a4b90c1fcebd22a1ff7491010d3cf840dd3a68aebd654 \
+    --hash=sha256:579ba873d7f2a96f78b2e11028f7472146ae181cae0e4d814a37a09e93d5c5cc \
+    --hash=sha256:57e30241524879ea10cdf79c737037221f77cc126a8cdc8ff2c94d4a522504b9 \
+    --hash=sha256:69ab81b66ebaa8d430ba56c7a5f9abe0183afefd3a2d6e483060343398b13fb1 \
+    --hash=sha256:6e3e1ec10c29bae0ea826b61f265ec5c858c5ba2ce2e69a71a62f285cf8e4595 \
+    --hash=sha256:727ece10e065be2f9dd239d15dd5d60a66e17eac11aea47d447f9f03fdbc42de \
+    --hash=sha256:7339e6a3283e4b0ade99cade51e97cde3d54cd6d1c3744459e886b66d630c8b3 \
+    --hash=sha256:767604f244dc17c68d3e2dbf98e038d11a18abc078f2d0f84b6c24571d9c0b13 \
+    --hash=sha256:7a64edd3ff6a7f711a15bd70b4458611fb240176ec11ad8845ccbab4fe6745db \
+    --hash=sha256:81aa97669cd726349eb7bd43ca540cf418b279ee3caba5e2e295fb4e8f841c02 \
+    --hash=sha256:84c41ba992df5b8d680b89fd84c6a1f2aca2b9f1ae8a67400c8930cd4ea115f6 \
+    --hash=sha256:84fd56c78d431606332a0627c16e2a63d243d0d8b05521257d77c6529abe14d8 \
+    --hash=sha256:889e45e976c74abc7256d3064aa7c1295aa283c6bb19810b9f8b604dfe5c7f31 \
+    --hash=sha256:8e2e12d0d862f43d51e5afb8b9751c77e6bec7d2dc00aad80641364e9df5b199 \
+    --hash=sha256:967b65232e104f4b0f6370a62eb33089e00024f2ce143aecbf9755649421c683 \
+    --hash=sha256:9d077f909f2343daf4495ba22bb0e23b62886e8ec7c109ee8234bdbd678cf344 \
+    --hash=sha256:9d57b4e23ebbe985125d3f0cabbf286efa191ab60bbadb9326091050d88e8213 \
+    --hash=sha256:a1968f2a2003c97c4ce6308dc2498d5fd4364ad309900930aa5a503c9851aec8 \
+    --hash=sha256:a2a722c0e4bfd9966a11ff55c895c817158fcce1b2b6700205a376403b546ad9 \
+    --hash=sha256:a97bb05eb24637714a04dee85bdf0ad1941df64fe3b802ee4ac1c284a5f97b7c \
+    --hash=sha256:aff40f8ac6763d05c2c8f6d240c6dac4bb92640a86d9b0c3f3fff4404f34095c \
+    --hash=sha256:babe8d1eb059a53e560e7bf29f8e8f4accc8b6cfb9b5fd10e485bde77e71ef41 \
+    --hash=sha256:bbceffc80aa02d9e8b99f2a7491ed8c4a783b2fc4020119dc405ca14fb5c758c \
+    --hash=sha256:c59375e85126b15a90fcba3443eaac58f3073ba091f02410eaa286da9ad80ed8 \
+    --hash=sha256:ca2aed95855506b7ae94e8f1f6217b7673c929e4f4f1217bcaa236253055cb36 \
+    --hash=sha256:cc066cb98b912f525ae901a24cd381a656f024f76203bc85f78fcc9e66ae5aec \
+    --hash=sha256:cdef9a056c222d0479a1fdb721430f9efd68268014c54e8166133d2643cb05d9 \
+    --hash=sha256:d07f1b64008e39fceae7aa99e38df8385d7d24a474a8c9872645c4397b674481 \
+    --hash=sha256:d639397de852f2ccfb3134b152c741406752640a266d9c1365b0f23d7b88077f \
+    --hash=sha256:dff02c5c8423a657c550b48231d0a48d7e2b2e131088e55983cfe74ccc2c7cc9 \
+    --hash=sha256:e952c684274a7714b3160f57ec1d78309f955c6335c04433f07d36c5eb27b1f9 \
+    --hash=sha256:ea1e9e43ca56b0c12440a7c689b1350066595bebcaa83baad05b8b2675129d98 \
+    --hash=sha256:f022601f3ee9e1f6658ed6d184ce27fa5216cee5b82d279e0f0bde5deebece72 \
+    --hash=sha256:f0e9618630edd1910ad4f07f60d77c184b2f572c8ee43305ea3265675cbbfe7e \
+    --hash=sha256:f1d6bc9c23356908db712d282acb3eebd4ae5ec6d8b696aa40342b1d84f8e9e3 \
+    --hash=sha256:f4376819c1c778d59e0a31db5dc6ede854e9edf28bbfa5b756604727f7f800ac
     # via -r requirements-fonttools.in
-gcovr==5.0 \
-    --hash=sha256:1d80264cbaadff356b3dda71b8c62b3aa803e5b3eb6d526a24932cd6660a2576 \
-    --hash=sha256:8c49ebcfc5a98b56dd900c687aad0258ac86093d2f81a1417905193ab45fe69f
+meson==1.7.0 \
+    --hash=sha256:08efbe84803eed07f863b05092d653a9d348f7038761d900412fddf56deb0284 \
+    --hash=sha256:ae3f12953045f3c7c60e27f2af1ad862f14dee125b4ed9bcb8a842a5080dbf85
     # via -r requirements.in
-jinja2==3.1.4 \
-    --hash=sha256:4a3aee7acbbe7303aede8e9648d13b8bf88a429282aa6122a993f0ac800cb369 \
-    --hash=sha256:bc5dd2abb727a5319567b7a813e6a2e7318c39f4f487cfe6c89c6f9c7d25197d
-    # via gcovr
-lxml==4.9.3 \
-    --hash=sha256:05186a0f1346ae12553d66df1cfce6f251589fea3ad3da4f3ef4e34b2d58c6a3 \
-    --hash=sha256:075b731ddd9e7f68ad24c635374211376aa05a281673ede86cbe1d1b3455279d \
-    --hash=sha256:081d32421db5df44c41b7f08a334a090a545c54ba977e47fd7cc2deece78809a \
-    --hash=sha256:0a3d3487f07c1d7f150894c238299934a2a074ef590b583103a45002035be120 \
-    --hash=sha256:0bfd0767c5c1de2551a120673b72e5d4b628737cb05414f03c3277bf9bed3305 \
-    --hash=sha256:0c0850c8b02c298d3c7006b23e98249515ac57430e16a166873fc47a5d549287 \
-    --hash=sha256:0e2cb47860da1f7e9a5256254b74ae331687b9672dfa780eed355c4c9c3dbd23 \
-    --hash=sha256:120fa9349a24c7043854c53cae8cec227e1f79195a7493e09e0c12e29f918e52 \
-    --hash=sha256:1247694b26342a7bf47c02e513d32225ededd18045264d40758abeb3c838a51f \
-    --hash=sha256:141f1d1a9b663c679dc524af3ea1773e618907e96075262726c7612c02b149a4 \
-    --hash=sha256:14e019fd83b831b2e61baed40cab76222139926b1fb5ed0e79225bc0cae14584 \
-    --hash=sha256:1509dd12b773c02acd154582088820893109f6ca27ef7291b003d0e81666109f \
-    --hash=sha256:17a753023436a18e27dd7769e798ce302963c236bc4114ceee5b25c18c52c693 \
-    --hash=sha256:1e224d5755dba2f4a9498e150c43792392ac9b5380aa1b845f98a1618c94eeef \
-    --hash=sha256:1f447ea5429b54f9582d4b955f5f1985f278ce5cf169f72eea8afd9502973dd5 \
-    --hash=sha256:23eed6d7b1a3336ad92d8e39d4bfe09073c31bfe502f20ca5116b2a334f8ec02 \
-    --hash=sha256:25f32acefac14ef7bd53e4218fe93b804ef6f6b92ffdb4322bb6d49d94cad2bc \
-    --hash=sha256:2c74524e179f2ad6d2a4f7caf70e2d96639c0954c943ad601a9e146c76408ed7 \
-    --hash=sha256:303bf1edce6ced16bf67a18a1cf8339d0db79577eec5d9a6d4a80f0fb10aa2da \
-    --hash=sha256:3331bece23c9ee066e0fb3f96c61322b9e0f54d775fccefff4c38ca488de283a \
-    --hash=sha256:3e9bdd30efde2b9ccfa9cb5768ba04fe71b018a25ea093379c857c9dad262c40 \
-    --hash=sha256:411007c0d88188d9f621b11d252cce90c4a2d1a49db6c068e3c16422f306eab8 \
-    --hash=sha256:42871176e7896d5d45138f6d28751053c711ed4d48d8e30b498da155af39aebd \
-    --hash=sha256:46f409a2d60f634fe550f7133ed30ad5321ae2e6630f13657fb9479506b00601 \
-    --hash=sha256:48628bd53a426c9eb9bc066a923acaa0878d1e86129fd5359aee99285f4eed9c \
-    --hash=sha256:48d6ed886b343d11493129e019da91d4039826794a3e3027321c56d9e71505be \
-    --hash=sha256:4930be26af26ac545c3dffb662521d4e6268352866956672231887d18f0eaab2 \
-    --hash=sha256:4aec80cde9197340bc353d2768e2a75f5f60bacda2bab72ab1dc499589b3878c \
-    --hash=sha256:4c28a9144688aef80d6ea666c809b4b0e50010a2aca784c97f5e6bf143d9f129 \
-    --hash=sha256:4d2d1edbca80b510443f51afd8496be95529db04a509bc8faee49c7b0fb6d2cc \
-    --hash=sha256:4dd9a263e845a72eacb60d12401e37c616438ea2e5442885f65082c276dfb2b2 \
-    --hash=sha256:4f1026bc732b6a7f96369f7bfe1a4f2290fb34dce00d8644bc3036fb351a4ca1 \
-    --hash=sha256:4fb960a632a49f2f089d522f70496640fdf1218f1243889da3822e0a9f5f3ba7 \
-    --hash=sha256:50670615eaf97227d5dc60de2dc99fb134a7130d310d783314e7724bf163f75d \
-    --hash=sha256:50baa9c1c47efcaef189f31e3d00d697c6d4afda5c3cde0302d063492ff9b477 \
-    --hash=sha256:53ace1c1fd5a74ef662f844a0413446c0629d151055340e9893da958a374f70d \
-    --hash=sha256:5515edd2a6d1a5a70bfcdee23b42ec33425e405c5b351478ab7dc9347228f96e \
-    --hash=sha256:56dc1f1ebccc656d1b3ed288f11e27172a01503fc016bcabdcbc0978b19352b7 \
-    --hash=sha256:578695735c5a3f51569810dfebd05dd6f888147a34f0f98d4bb27e92b76e05c2 \
-    --hash=sha256:57aba1bbdf450b726d58b2aea5fe47c7875f5afb2c4a23784ed78f19a0462574 \
-    --hash=sha256:57d6ba0ca2b0c462f339640d22882acc711de224d769edf29962b09f77129cbf \
-    --hash=sha256:5c245b783db29c4e4fbbbfc9c5a78be496c9fea25517f90606aa1f6b2b3d5f7b \
-    --hash=sha256:5c31c7462abdf8f2ac0577d9f05279727e698f97ecbb02f17939ea99ae8daa98 \
-    --hash=sha256:64f479d719dc9f4c813ad9bb6b28f8390360660b73b2e4beb4cb0ae7104f1c12 \
-    --hash=sha256:65299ea57d82fb91c7f019300d24050c4ddeb7c5a190e076b5f48a2b43d19c42 \
-    --hash=sha256:6689a3d7fd13dc687e9102a27e98ef33730ac4fe37795d5036d18b4d527abd35 \
-    --hash=sha256:690dafd0b187ed38583a648076865d8c229661ed20e48f2335d68e2cf7dc829d \
-    --hash=sha256:6fc3c450eaa0b56f815c7b62f2b7fba7266c4779adcf1cece9e6deb1de7305ce \
-    --hash=sha256:704f61ba8c1283c71b16135caf697557f5ecf3e74d9e453233e4771d68a1f42d \
-    --hash=sha256:71c52db65e4b56b8ddc5bb89fb2e66c558ed9d1a74a45ceb7dcb20c191c3df2f \
-    --hash=sha256:71d66ee82e7417828af6ecd7db817913cb0cf9d4e61aa0ac1fde0583d84358db \
-    --hash=sha256:7d298a1bd60c067ea75d9f684f5f3992c9d6766fadbc0bcedd39750bf344c2f4 \
-    --hash=sha256:8b77946fd508cbf0fccd8e400a7f71d4ac0e1595812e66025bac475a8e811694 \
-    --hash=sha256:8d7e43bd40f65f7d97ad8ef5c9b1778943d02f04febef12def25f7583d19baac \
-    --hash=sha256:8df133a2ea5e74eef5e8fc6f19b9e085f758768a16e9877a60aec455ed2609b2 \
-    --hash=sha256:8ed74706b26ad100433da4b9d807eae371efaa266ffc3e9191ea436087a9d6a7 \
-    --hash=sha256:92af161ecbdb2883c4593d5ed4815ea71b31fafd7fd05789b23100d081ecac96 \
-    --hash=sha256:97047f0d25cd4bcae81f9ec9dc290ca3e15927c192df17331b53bebe0e3ff96d \
-    --hash=sha256:9719fe17307a9e814580af1f5c6e05ca593b12fb7e44fe62450a5384dbf61b4b \
-    --hash=sha256:9767e79108424fb6c3edf8f81e6730666a50feb01a328f4a016464a5893f835a \
-    --hash=sha256:9a92d3faef50658dd2c5470af249985782bf754c4e18e15afb67d3ab06233f13 \
-    --hash=sha256:9bb6ad405121241e99a86efff22d3ef469024ce22875a7ae045896ad23ba2340 \
-    --hash=sha256:9e28c51fa0ce5674be9f560c6761c1b441631901993f76700b1b30ca6c8378d6 \
-    --hash=sha256:aca086dc5f9ef98c512bac8efea4483eb84abbf926eaeedf7b91479feb092458 \
-    --hash=sha256:ae8b9c6deb1e634ba4f1930eb67ef6e6bf6a44b6eb5ad605642b2d6d5ed9ce3c \
-    --hash=sha256:b0a545b46b526d418eb91754565ba5b63b1c0b12f9bd2f808c852d9b4b2f9b5c \
-    --hash=sha256:b4e4bc18382088514ebde9328da057775055940a1f2e18f6ad2d78aa0f3ec5b9 \
-    --hash=sha256:b6420a005548ad52154c8ceab4a1290ff78d757f9e5cbc68f8c77089acd3c432 \
-    --hash=sha256:b86164d2cff4d3aaa1f04a14685cbc072efd0b4f99ca5708b2ad1b9b5988a991 \
-    --hash=sha256:bb3bb49c7a6ad9d981d734ef7c7193bc349ac338776a0360cc671eaee89bcf69 \
-    --hash=sha256:bef4e656f7d98aaa3486d2627e7d2df1157d7e88e7efd43a65aa5dd4714916cf \
-    --hash=sha256:c0781a98ff5e6586926293e59480b64ddd46282953203c76ae15dbbbf302e8bb \
-    --hash=sha256:c2006f5c8d28dee289f7020f721354362fa304acbaaf9745751ac4006650254b \
-    --hash=sha256:c41bfca0bd3532d53d16fd34d20806d5c2b1ace22a2f2e4c0008570bf2c58833 \
-    --hash=sha256:cd47b4a0d41d2afa3e58e5bf1f62069255aa2fd6ff5ee41604418ca925911d76 \
-    --hash=sha256:cdb650fc86227eba20de1a29d4b2c1bfe139dc75a0669270033cb2ea3d391b85 \
-    --hash=sha256:cef2502e7e8a96fe5ad686d60b49e1ab03e438bd9123987994528febd569868e \
-    --hash=sha256:d27be7405547d1f958b60837dc4c1007da90b8b23f54ba1f8b728c78fdb19d50 \
-    --hash=sha256:d37017287a7adb6ab77e1c5bee9bcf9660f90ff445042b790402a654d2ad81d8 \
-    --hash=sha256:d3ff32724f98fbbbfa9f49d82852b159e9784d6094983d9a8b7f2ddaebb063d4 \
-    --hash=sha256:d73d8ecf8ecf10a3bd007f2192725a34bd62898e8da27eb9d32a58084f93962b \
-    --hash=sha256:dd708cf4ee4408cf46a48b108fb9427bfa00b9b85812a9262b5c668af2533ea5 \
-    --hash=sha256:e3cd95e10c2610c360154afdc2f1480aea394f4a4f1ea0a5eacce49640c9b190 \
-    --hash=sha256:e4da8ca0c0c0aea88fd46be8e44bd49716772358d648cce45fe387f7b92374a7 \
-    --hash=sha256:eadfbbbfb41b44034a4c757fd5d70baccd43296fb894dba0295606a7cf3124aa \
-    --hash=sha256:ed667f49b11360951e201453fc3967344d0d0263aa415e1619e85ae7fd17b4e0 \
-    --hash=sha256:f3df3db1d336b9356dd3112eae5f5c2b8b377f3bc826848567f10bfddfee77e9 \
-    --hash=sha256:f6bdac493b949141b733c5345b6ba8f87a226029cbabc7e9e121a413e49441e0 \
-    --hash=sha256:fbf521479bcac1e25a663df882c46a641a9bff6b56dc8b0fafaebd2f66fb231b \
-    --hash=sha256:fc9b106a1bf918db68619fdcd6d5ad4f972fdd19c01d19bdb6bf63f3589a9ec5 \
-    --hash=sha256:fcdd00edfd0a3001e0181eab3e63bd5c74ad3e67152c84f93f13769a40e073a7 \
-    --hash=sha256:fe4bda6bd4340caa6e5cf95e73f8fea5c4bfc55763dd42f1b50a94c1b4a2fbd4
-    # via gcovr
-markupsafe==2.1.3 \
-    --hash=sha256:05fb21170423db021895e1ea1e1f3ab3adb85d1c2333cbc2310f2a26bc77272e \
-    --hash=sha256:0a4e4a1aff6c7ac4cd55792abf96c915634c2b97e3cc1c7129578aa68ebd754e \
-    --hash=sha256:10bbfe99883db80bdbaff2dcf681dfc6533a614f700da1287707e8a5d78a8431 \
-    --hash=sha256:134da1eca9ec0ae528110ccc9e48041e0828d79f24121a1a146161103c76e686 \
-    --hash=sha256:14ff806850827afd6b07a5f32bd917fb7f45b046ba40c57abdb636674a8b559c \
-    --hash=sha256:1577735524cdad32f9f694208aa75e422adba74f1baee7551620e43a3141f559 \
-    --hash=sha256:1b40069d487e7edb2676d3fbdb2b0829ffa2cd63a2ec26c4938b2d34391b4ecc \
-    --hash=sha256:1b8dd8c3fd14349433c79fa8abeb573a55fc0fdd769133baac1f5e07abf54aeb \
-    --hash=sha256:1f67c7038d560d92149c060157d623c542173016c4babc0c1913cca0564b9939 \
-    --hash=sha256:282c2cb35b5b673bbcadb33a585408104df04f14b2d9b01d4c345a3b92861c2c \
-    --hash=sha256:2c1b19b3aaacc6e57b7e25710ff571c24d6c3613a45e905b1fde04d691b98ee0 \
-    --hash=sha256:2ef12179d3a291be237280175b542c07a36e7f60718296278d8593d21ca937d4 \
-    --hash=sha256:338ae27d6b8745585f87218a3f23f1512dbf52c26c28e322dbe54bcede54ccb9 \
-    --hash=sha256:3c0fae6c3be832a0a0473ac912810b2877c8cb9d76ca48de1ed31e1c68386575 \
-    --hash=sha256:3fd4abcb888d15a94f32b75d8fd18ee162ca0c064f35b11134be77050296d6ba \
-    --hash=sha256:42de32b22b6b804f42c5d98be4f7e5e977ecdd9ee9b660fda1a3edf03b11792d \
-    --hash=sha256:47d4f1c5f80fc62fdd7777d0d40a2e9dda0a05883ab11374334f6c4de38adffd \
-    --hash=sha256:504b320cd4b7eff6f968eddf81127112db685e81f7e36e75f9f84f0df46041c3 \
-    --hash=sha256:525808b8019e36eb524b8c68acdd63a37e75714eac50e988180b169d64480a00 \
-    --hash=sha256:56d9f2ecac662ca1611d183feb03a3fa4406469dafe241673d521dd5ae92a155 \
-    --hash=sha256:5bbe06f8eeafd38e5d0a4894ffec89378b6c6a625ff57e3028921f8ff59318ac \
-    --hash=sha256:65c1a9bcdadc6c28eecee2c119465aebff8f7a584dd719facdd9e825ec61ab52 \
-    --hash=sha256:68e78619a61ecf91e76aa3e6e8e33fc4894a2bebe93410754bd28fce0a8a4f9f \
-    --hash=sha256:69c0f17e9f5a7afdf2cc9fb2d1ce6aabdb3bafb7f38017c0b77862bcec2bbad8 \
-    --hash=sha256:6b2b56950d93e41f33b4223ead100ea0fe11f8e6ee5f641eb753ce4b77a7042b \
-    --hash=sha256:715d3562f79d540f251b99ebd6d8baa547118974341db04f5ad06d5ea3eb8007 \
-    --hash=sha256:787003c0ddb00500e49a10f2844fac87aa6ce977b90b0feaaf9de23c22508b24 \
-    --hash=sha256:7ef3cb2ebbf91e330e3bb937efada0edd9003683db6b57bb108c4001f37a02ea \
-    --hash=sha256:8023faf4e01efadfa183e863fefde0046de576c6f14659e8782065bcece22198 \
-    --hash=sha256:8758846a7e80910096950b67071243da3e5a20ed2546e6392603c096778d48e0 \
-    --hash=sha256:8afafd99945ead6e075b973fefa56379c5b5c53fd8937dad92c662da5d8fd5ee \
-    --hash=sha256:8c41976a29d078bb235fea9b2ecd3da465df42a562910f9022f1a03107bd02be \
-    --hash=sha256:8e254ae696c88d98da6555f5ace2279cf7cd5b3f52be2b5cf97feafe883b58d2 \
-    --hash=sha256:8f9293864fe09b8149f0cc42ce56e3f0e54de883a9de90cd427f191c346eb2e1 \
-    --hash=sha256:9402b03f1a1b4dc4c19845e5c749e3ab82d5078d16a2a4c2cd2df62d57bb0707 \
-    --hash=sha256:962f82a3086483f5e5f64dbad880d31038b698494799b097bc59c2edf392fce6 \
-    --hash=sha256:9aad3c1755095ce347e26488214ef77e0485a3c34a50c5a5e2471dff60b9dd9c \
-    --hash=sha256:9dcdfd0eaf283af041973bff14a2e143b8bd64e069f4c383416ecd79a81aab58 \
-    --hash=sha256:aa57bd9cf8ae831a362185ee444e15a93ecb2e344c8e52e4d721ea3ab6ef1823 \
-    --hash=sha256:aa7bd130efab1c280bed0f45501b7c8795f9fdbeb02e965371bbef3523627779 \
-    --hash=sha256:ab4a0df41e7c16a1392727727e7998a467472d0ad65f3ad5e6e765015df08636 \
-    --hash=sha256:ad9e82fb8f09ade1c3e1b996a6337afac2b8b9e365f926f5a61aacc71adc5b3c \
-    --hash=sha256:af598ed32d6ae86f1b747b82783958b1a4ab8f617b06fe68795c7f026abbdcad \
-    --hash=sha256:b076b6226fb84157e3f7c971a47ff3a679d837cf338547532ab866c57930dbee \
-    --hash=sha256:b7ff0f54cb4ff66dd38bebd335a38e2c22c41a8ee45aa608efc890ac3e3931bc \
-    --hash=sha256:bfce63a9e7834b12b87c64d6b155fdd9b3b96191b6bd334bf37db7ff1fe457f2 \
-    --hash=sha256:c011a4149cfbcf9f03994ec2edffcb8b1dc2d2aede7ca243746df97a5d41ce48 \
-    --hash=sha256:c9c804664ebe8f83a211cace637506669e7890fec1b4195b505c214e50dd4eb7 \
-    --hash=sha256:ca379055a47383d02a5400cb0d110cef0a776fc644cda797db0c5696cfd7e18e \
-    --hash=sha256:cb0932dc158471523c9637e807d9bfb93e06a95cbf010f1a38b98623b929ef2b \
-    --hash=sha256:cd0f502fe016460680cd20aaa5a76d241d6f35a1c3350c474bac1273803893fa \
-    --hash=sha256:ceb01949af7121f9fc39f7d27f91be8546f3fb112c608bc4029aef0bab86a2a5 \
-    --hash=sha256:d080e0a5eb2529460b30190fcfcc4199bd7f827663f858a226a81bc27beaa97e \
-    --hash=sha256:dd15ff04ffd7e05ffcb7fe79f1b98041b8ea30ae9234aed2a9168b5797c3effb \
-    --hash=sha256:df0be2b576a7abbf737b1575f048c23fb1d769f267ec4358296f31c2479db8f9 \
-    --hash=sha256:e09031c87a1e51556fdcb46e5bd4f59dfb743061cf93c4d6831bf894f125eb57 \
-    --hash=sha256:e4dd52d80b8c83fdce44e12478ad2e85c64ea965e75d66dbeafb0a3e77308fcc \
-    --hash=sha256:f698de3fd0c4e6972b92290a45bd9b1536bffe8c6759c62471efaa8acb4c37bc \
-    --hash=sha256:fec21693218efe39aa7f8599346e90c705afa52c5b31ae019b2e57e8f6542bb2 \
-    --hash=sha256:ffcc3f7c66b5f5b7931a5aa68fc9cecc51e685ef90282f4a82f0f5e9b704ad11
-    # via jinja2
-meson==1.5.2 \
-    --hash=sha256:77706e2368a00d789c097632ccf4fc39251fba56d03e1e1b262559a3c7a08f5b \
-    --hash=sha256:f955e09ab0d71ef180ae85df65991d58ed8430323de7d77a37e11c9ea630910b
+ninja==1.11.1.4 \
+    --hash=sha256:055f386fb550c2c9d6157e45e20a84d29c47968876b9c5794ae2aec46f952306 \
+    --hash=sha256:096487995473320de7f65d622c3f1d16c3ad174797602218ca8c967f51ec38a0 \
+    --hash=sha256:2ab67a41c90bea5ec4b795bab084bc0b3b3bb69d3cd21ca0294fc0fc15a111eb \
+    --hash=sha256:4617b3c12ff64b611a7d93fd9e378275512bb36eff8babff7c83f5116b4f8d66 \
+    --hash=sha256:5713cf50c5be50084a8693308a63ecf9e55c3132a78a41ab1363a28b6caaaee1 \
+    --hash=sha256:6aa39f6e894e0452e5b297327db00019383ae55d5d9c57c73b04f13bf79d438a \
+    --hash=sha256:9c29bb66d2aa46a2409ab369ea804c730faec7652e8c22c1e428cc09216543e5 \
+    --hash=sha256:b33923c8da88e8da20b6053e38deb433f53656441614207e01d283ad02c5e8e7 \
+    --hash=sha256:c3b96bd875f3ef1db782470e9e41d7508905a0986571f219d20ffed238befa15 \
+    --hash=sha256:cede0af00b58e27b31f2482ba83292a8e9171cdb9acc2c867a3b6e40b3353e43 \
+    --hash=sha256:cf4453679d15babc04ba023d68d091bb613091b67101c88f85d2171c6621c6eb \
+    --hash=sha256:cf554e73f72c04deb04d0cf51f5fdb1903d9c9ca3d2344249c8ce3bd616ebc02 \
+    --hash=sha256:cfdd09776436a1ff3c4a2558d3fc50a689fb9d7f1bdbc3e6f7b8c2991341ddb3 \
+    --hash=sha256:d3090d4488fadf6047d0d7a1db0c9643a8d391f0d94729554dbb89b5bdc769d7 \
+    --hash=sha256:d4a6f159b08b0ac4aca5ee1572e3e402f969139e71d85d37c0e2872129098749 \
+    --hash=sha256:ecce44a00325a93631792974659cf253a815cc6da4ec96f89742925dfc295a0d \
+    --hash=sha256:f6186d7607bb090c3be1e10c8a56b690be238f953616626f5032238c66e56867
     # via -r requirements.in
-ninja==1.11.1.1 \
-    --hash=sha256:18302d96a5467ea98b68e1cae1ae4b4fb2b2a56a82b955193c637557c7273dbd \
-    --hash=sha256:185e0641bde601e53841525c4196278e9aaf4463758da6dd1e752c0a0f54136a \
-    --hash=sha256:376889c76d87b95b5719fdd61dd7db193aa7fd4432e5d52d2e44e4c497bdbbee \
-    --hash=sha256:3e0f9be5bb20d74d58c66cc1c414c3e6aeb45c35b0d0e41e8d739c2c0d57784f \
-    --hash=sha256:73b93c14046447c7c5cc892433d4fae65d6364bec6685411cb97a8bcf815f93a \
-    --hash=sha256:7563ce1d9fe6ed5af0b8dd9ab4a214bf4ff1f2f6fd6dc29f480981f0f8b8b249 \
-    --hash=sha256:76482ba746a2618eecf89d5253c0d1e4f1da1270d41e9f54dfbd91831b0f6885 \
-    --hash=sha256:84502ec98f02a037a169c4b0d5d86075eaf6afc55e1879003d6cab51ced2ea4b \
-    --hash=sha256:95da904130bfa02ea74ff9c0116b4ad266174fafb1c707aa50212bc7859aebf1 \
-    --hash=sha256:9d793b08dd857e38d0b6ffe9e6b7145d7c485a42dcfea04905ca0cdb6017cc3c \
-    --hash=sha256:9df724344202b83018abb45cb1efc22efd337a1496514e7e6b3b59655be85205 \
-    --hash=sha256:aad34a70ef15b12519946c5633344bc775a7656d789d9ed5fdb0d456383716ef \
-    --hash=sha256:d491fc8d89cdcb416107c349ad1e3a735d4c4af5e1cb8f5f727baca6350fdaea \
-    --hash=sha256:ecf80cf5afd09f14dcceff28cb3f11dc90fb97c999c89307aea435889cb66877 \
-    --hash=sha256:fa2ba9d74acfdfbfbcf06fad1b8282de8a7a8c481d9dee45c859a8c93fcc1082
-    # via -r requirements.in
-pygments==2.16.1 \
-    --hash=sha256:13fc09fa63bc8d8671a6d247e1eb303c4b343eaee81d861f3404db2935653692 \
-    --hash=sha256:1daff0494820c69bc8941e407aa20f577374ee88364ee10a98fdbe0aece96e29
-    # via gcovr
 
 # The following packages are considered to be unsafe in a requirements file:
-setuptools==73.0.1 \
-    --hash=sha256:b208925fcb9f7af924ed2dc04708ea89791e24bde0d3020b27df0e116088b34e \
-    --hash=sha256:d59a3e788ab7e012ab2c4baed1b376da6366883ee20d7a5fc426816e3d7b1193
+setuptools==78.1.0 \
+    --hash=sha256:18fd474d4a82a5f83dac888df697af65afa82dec7323d09c3e37d1f14288da54 \
+    --hash=sha256:3e386e96793c8702ae83d17b853fb93d3e09ef82ec62722e61da5cd22376dcd8
     # via -r requirements.in

.ci/win32-cross-file.txt

@@ -4,7 +4,7 @@ cpu_family = 'x86'
 cpu = 'i686'
 endian = 'little'
 
-[properties]
+[built-in options]
 c_args = []
 c_link_args = ['-static-libgcc', '-Wl,-Bstatic', '-lpthread']
 cpp_args = []
@@ -18,3 +18,5 @@ ld = 'i686-w64-mingw32-ld'
 objcopy = 'i686-w64-mingw32-objcopy'
 strip = 'i686-w64-mingw32-strip'
 windres = 'i686-w64-mingw32-windres'
+pkg-config = 'i686-w64-mingw32-pkg-config'
+exe_wrapper = 'wine'

.ci/win64-cross-file.txt

@@ -4,7 +4,7 @@ cpu_family = 'x86_64'
 cpu = 'x86_64'
 endian = 'little'
 
-[properties]
+[built-in options]
 c_args = []
 c_link_args = ['-static-libgcc', '-Wl,-Bstatic', '-lpthread']
 cpp_args = []
@@ -18,3 +18,5 @@ ld = 'x86_64-w64-mingw32-ld'
 objcopy = 'x86_64-w64-mingw32-objcopy'
 strip = 'x86_64-w64-mingw32-strip'
 windres = 'x86_64-w64-mingw32-windres'
+pkg-config = 'x86_64-w64-mingw32-pkg-config'
+exe_wrapper = 'wine'

.circleci/config.yml

@@ -3,10 +3,10 @@ version: 2.1
 executors:
   win32-executor:
     docker:
-      - image: cimg/base:2023.10
+      - image: ubuntu:24.04
   win64-executor:
     docker:
-      - image: cimg/base:2023.10
+      - image: ubuntu:24.04
   dist-executor:
     docker:
       - image: cimg/base:2023.10
@@ -37,7 +37,7 @@ jobs:
       - run: meson dist --no-tests -Cbuild
       - persist_to_workspace:
           root: .
-          paths: build/meson-dist/harfbuzz-*.tar.xz
+          paths: [build/meson-dist/harfbuzz-*.tar.xz]
 
   publish-dist:
     executor: dist-executor
@@ -56,22 +56,7 @@ jobs:
       - run: dnf install -y pkg-config ragel valgrind gcc gcc-c++ meson git glib2-devel freetype-devel cairo-devel libicu-devel gobject-introspection-devel graphite2-devel redhat-rpm-config python python-pip || true
       - run: meson setup build --buildtype=debugoptimized
       - run: meson compile -Cbuild -j9
-      # TOOD: increase timeouts and remove --no-suite=slow
-      - run: RUN_VALGRIND=1 meson test -Cbuild --no-suite=slow --wrap='valgrind --leak-check=full --error-exitcode=1' --print-errorlogs --num-processes=$(($(nproc)/2 + 1))
-
-  alpine:
-    docker:
-      - image: alpine
-    steps:
-      - checkout
-      - run: apk update && apk add ragel gcc g++ glib-dev freetype-dev cairo-dev git py3-pip ninja
-      - run: |
-          python3 -m venv venv
-          source venv/bin/activate
-          pip3 install meson==0.56.0
-          meson setup build --buildtype=minsize
-          meson compile -Cbuild -j9
-          meson test -Cbuild --print-errorlogs
+      - run: RUN_VALGRIND=1 meson test -Cbuild -t 10 --no-suite=slow --wrap='valgrind --leak-check=full --error-exitcode=1' --print-errorlogs --num-processes=$(($(nproc)/2 + 1))
 
   asan-ubsan:
     docker:
@@ -81,43 +66,47 @@ jobs:
       - run: apt update || true
       - run: DEBIAN_FRONTEND=noninteractive apt install -y python3 python3-pip python3-venv ninja-build clang lld git binutils pkg-config ragel libfreetype6-dev libglib2.0-dev libcairo2-dev libicu-dev libgraphite2-dev
       - run: |
+          export ASAN_OPTIONS=log_path=stderr:halt_on_error=1:abort_on_error=1
+          export UBSAN_OPTIONS=log_path=stderr:halt_on_error=1:abort_on_error=1:print_stacktrace=1
           python3 -m venv venv
           source venv/bin/activate
-          pip3 install meson==0.56.0
+          pip3 install meson==0.60.0
           CC=clang CXX=clang++ meson setup build --default-library=static -Db_sanitize=address,undefined --buildtype=debugoptimized --wrap-mode=nodownload -Dexperimental_api=true
           meson compile -Cbuild -j9
-          meson test -Cbuild --print-errorlogs | asan_symbolize | c++filt
+          meson test -Cbuild -t 10 --print-errorlogs | asan_symbolize | c++filt
 
   tsan:
     docker:
-      - image: ubuntu:20.04
+      - image: ubuntu:24.04
     steps:
       - checkout
       - run: apt update || true
       - run: DEBIAN_FRONTEND=noninteractive apt install -y python3 python3-pip python3-venv ninja-build clang lld git binutils pkg-config ragel libfreetype6-dev libglib2.0-dev libcairo2-dev libicu-dev libgraphite2-dev
       - run: |
+          export TSAN_OPTIONS=log_path=stderr:halt_on_error=1:abort_on_error=1
           python3 -m venv venv
           source venv/bin/activate
-          pip3 install meson==0.56.0
+          pip3 install meson==0.60.0
           CC=clang CXX=clang++ meson setup build --default-library=static -Db_sanitize=thread --buildtype=debugoptimized --wrap-mode=nodownload -Dexperimental_api=true
           meson compile -Cbuild -j9
-          meson test -Cbuild --print-errorlogs | asan_symbolize | c++filt
+          meson test -Cbuild -t 10 --print-errorlogs | asan_symbolize | c++filt
 
   msan:
     docker:
-      - image: ubuntu:20.04
+      - image: ubuntu:24.04
     steps:
       - checkout
       - run: apt update || true
       - run: DEBIAN_FRONTEND=noninteractive apt install -y python3 python3-pip python3-venv ninja-build clang lld git binutils pkg-config ragel libfreetype6-dev libglib2.0-dev libcairo2-dev libicu-dev libgraphite2-dev
       - run: |
+          export MSAN_OPTIONS=log_path=stderr:halt_on_error=1:abort_on_error=1:print_stacktrace=1
           python3 -m venv venv
           source venv/bin/activate
-          pip3 install meson==0.56.0
+          pip3 install meson==0.60.0
           # msan, needs --force-fallback-for=glib,freetype2 also which doesn't work yet but runs fuzzer cases at least
           CC=clang CXX=clang++ meson setup build --default-library=static -Db_sanitize=memory --buildtype=debugoptimized --wrap-mode=nodownload -Dauto_features=disabled -Dtests=enabled -Dexperimental_api=true
           meson compile -Cbuild -j9
-          meson test -Cbuild --print-errorlogs | asan_symbolize | c++filt
+          meson test -Cbuild -t 10 --print-errorlogs | asan_symbolize | c++filt
 
   clang-cxx2a:
     docker:
@@ -132,17 +121,21 @@ jobs:
     executor: win32-executor
     steps:
       - checkout
-      - run: sudo apt update && DEBIAN_FRONTEND=noninteractive sudo apt install -y ninja-build python3 python3-pip python3-venv git g++-mingw-w64-i686 zip
+      - run: dpkg --add-architecture i386
+      - run: apt update
+      - run: DEBIAN_FRONTEND=noninteractive apt install -y ninja-build python3 python3-pip python3-venv git g++-mingw-w64-i686 zip wine wine32
       - run: |
+          export LANG=en_US.UTF-8
           python3 -m venv venv
           source venv/bin/activate
-          pip3 install meson==0.60.0
-          bash .ci/build-win32.sh
+          pip3 install meson==1.6.0
+          bash .ci/build-win.sh 32
+          meson devenv -Cbuild-win32 meson test -t 10 --print-errorlogs --suite=harfbuzz
       - store_artifacts:
           path: harfbuzz-win32.zip
       - persist_to_workspace:
           root: .
-          paths: harfbuzz-win32.zip
+          paths: [harfbuzz-win32.zip]
 
   publish-win32:
     executor: win32-executor
@@ -150,6 +143,8 @@ jobs:
       - checkout
       - attach_workspace:
           at: .
+      - run: apt update
+      - run: DEBIAN_FRONTEND=noninteractive apt install -y curl
       - run: |
           mv harfbuzz-win32{,-$CIRCLE_TAG}.zip
           .ci/publish_release_artifact.sh harfbuzz-win32-$CIRCLE_TAG.zip
@@ -158,17 +153,21 @@ jobs:
     executor: win64-executor
     steps:
       - checkout
-      - run: sudo apt update && DEBIAN_FRONTEND=noninteractive sudo apt install -y ninja-build python3 python3-pip python3-venv git g++-mingw-w64-x86-64 zip
+      - run: dpkg --add-architecture i386
+      - run: apt update
+      - run: DEBIAN_FRONTEND=noninteractive apt install -y ninja-build python3 python3-pip python3-venv git g++-mingw-w64-x86-64 zip wine wine64 wine32:i386
       - run: |
+          export LANG=en_US.UTF-8
           python3 -m venv venv
           source venv/bin/activate
-          pip3 install meson==0.60.0
-          bash .ci/build-win64.sh
+          pip3 install meson==1.6.0
+          bash .ci/build-win.sh 64
+          meson devenv -Cbuild-win64 meson test -t 10 --print-errorlogs --suite=harfbuzz
       - store_artifacts:
           path: harfbuzz-win64.zip
       - persist_to_workspace:
           root: .
-          paths: harfbuzz-win64.zip
+          paths: [harfbuzz-win64.zip]
 
   publish-win64:
     executor: win64-executor
@@ -176,6 +175,8 @@ jobs:
       - checkout
       - attach_workspace:
           at: .
+      - run: apt update
+      - run: DEBIAN_FRONTEND=noninteractive apt install -y curl
       - run: |
           mv harfbuzz-win64{,-$CIRCLE_TAG}.zip
           .ci/publish_release_artifact.sh harfbuzz-win64-$CIRCLE_TAG.zip
@@ -200,7 +201,6 @@ workflows:
             branches:
               ignore: /.*/
       - fedora-valgrind
-      - alpine
       - asan-ubsan
       - tsan
       - msan

.github/workflows/arm-ci.yml

@@ -15,7 +15,7 @@ jobs:
     container:
       image: devkitpro/devkitarm:latest
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
       - name: Configure CMake
         run: |
           cmake -S . -B build \

.github/workflows/cifuzz.yml

@@ -21,7 +21,7 @@ jobs:
         fuzz-seconds: 600
         dry-run: false
     - name: Upload Crash
-      uses: actions/upload-artifact@50769540e7f4bd5e21e526ee35c689e35e0d6874 # v4.4.0
+      uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
       if: failure() && steps.build.outcome == 'success'
       with:
         name: artifacts

.github/workflows/configs-build.yml

@@ -11,10 +11,10 @@ permissions:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     steps:
-    - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+    - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
     - name: install dependencies
       run: sudo apt-get install gcc
     - name: HB_DISABLE_DEPRECATED

.github/workflows/coverity-scan.yml

@@ -11,7 +11,7 @@ jobs:
   latest:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+      - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
 
       - run: sudo apt-get install gcc clang wget git curl pkg-config libfreetype6-dev libglib2.0-dev libicu-dev libgraphite2-dev
 

.github/workflows/fontations.yml

@@ -0,0 +1,63 @@
+name: fontations
+
+on:
+  push:
+    branches: [ main ]
+    tags: ["*.*.*"]
+  pull_request:
+    branches: [ main ]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-24.04
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+    - name: Setup Ccache
+      uses: hendrikmuhs/ccache-action@a1209f81afb8c005c13b4296c32e363431bffea5 # v1.2.17
+      with:
+        key: ${{ github.job }}-${{ runner.os }}-${{ runner.arch }}
+    - uses: dtolnay/rust-toolchain@nightly
+    - name: Install Dependencies
+      run: |
+        rustup component add \
+          rust-src \
+          rustfmt \
+          clippy \
+          --toolchain nightly-x86_64-unknown-linux-gnu
+        sudo apt-get update
+        sudo apt-get install \
+          gcc \
+          gobject-introspection \
+          gtk-doc-tools \
+          libcairo2-dev \
+          libfreetype6-dev \
+          libgirepository1.0-dev \
+          libglib2.0-dev \
+          libgraphite2-dev \
+          libicu-dev \
+          pkg-config \
+          bindgen
+    - name: Setup Python
+      uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
+      with:
+        python-version: '3.12'
+    - name: Install Python Dependencies
+      run: pip3 install -r .ci/requirements.txt --require-hashes
+    - name: Setup Meson
+      run: |
+        ccache --version
+        meson setup build \
+          -Dauto_features=enabled \
+          -Dchafa=disabled \
+          -Dgraphite=enabled \
+          -Doptimization=2 \
+          -Dfontations=enabled
+    - name: Build
+      run: meson compile -Cbuild
+    - name: Test
+      run: RUST_BACKTRACE=1 meson test --print-errorlogs -Cbuild

.github/workflows/linux-ci.yml

@@ -12,13 +12,13 @@ permissions:
 
 jobs:
   build:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
 
     steps:
     - name: Checkout
-      uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
     - name: Setup Ccache
-      uses: hendrikmuhs/ccache-action@ed74d11c0b343532753ecead8a951bb09bb34bc9 # v1.2.14
+      uses: hendrikmuhs/ccache-action@a1209f81afb8c005c13b4296c32e363431bffea5 # v1.2.17
       with:
         key: ${{ github.job }}-${{ runner.os }}-${{ runner.arch }}
     - name: Install Dependencies
@@ -34,16 +34,14 @@ jobs:
           libglib2.0-dev \
           libgraphite2-dev \
           libicu-dev \
-          ninja-build \
           pkg-config \
-          python3 \
-          python3-setuptools
+          help2man
     - name: Setup Python
-      uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3 # v5.2.0
+      uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
       with:
-        python-version: '3.x'
+        python-version: '3.12'
     - name: Install Python Dependencies
-      run: sudo pip3 install -r .ci/requirements.txt --require-hashes
+      run: pip3 install -r .ci/requirements.txt --require-hashes
     - name: Setup Meson
       run: |
         ccache --version
@@ -52,7 +50,6 @@ jobs:
           -Dchafa=disabled \
           -Dgraphite=enabled \
           -Doptimization=2 \
-          -Db_coverage=true \
           -Ddoc_tests=true \
           -Dragel_subproject=true
     - name: Build
@@ -67,9 +64,3 @@ jobs:
       env:
         GH_TOKEN: ${{ secrets.GH_TOKEN }}
         REVISION: ${{ github.sha }}
-    - name: Generate Coverage
-      run: ninja -Cbuild coverage-xml
-    - name: Upload Coverage
-      uses: codecov/codecov-action@e28ff129e5465c2c0dcc6f003fc735cb6ae0c673 # v4.5.0
-      with:
-        file: build/meson-logs/coverage.xml

.github/workflows/macos-ci.yml

@@ -15,15 +15,16 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
     - name: Setup Ccache
-      uses: hendrikmuhs/ccache-action@ed74d11c0b343532753ecead8a951bb09bb34bc9 # v1.2.14
+      uses: hendrikmuhs/ccache-action@a1209f81afb8c005c13b4296c32e363431bffea5 # v1.2.17
       with:
         key: ${{ github.job }}-${{ runner.os }}-${{ runner.arch }}
     - name: Install Dependencies
       run: |
         export HOMEBREW_NO_AUTO_UPDATE=1
         export HOMEBREW_NO_INSTALL_CLEANUP=1
+        brew rm -f pkg-config@0.29.2
         brew install \
           cairo \
           freetype \
@@ -33,11 +34,11 @@ jobs:
           icu4c \
           meson \
           ninja \
-          pkg-config
+          pkgconf
     - name: Setup Python
-      uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3 # v5.2.0
+      uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
       with:
-        python-version: '3.x'
+        python-version: '3.12'
     - name: Install Python Dependencies
       run: pip3 install -r .ci/requirements.txt --require-hashes
     - name: Setup Meson
@@ -53,14 +54,7 @@ jobs:
           -Dcoretext=enabled \
           -Dgraphite=enabled \
           -Doptimization=2 \
-          -Db_coverage=true \
     - name: Build
       run: meson compile -Cbuild
     - name: Test
       run: meson test --print-errorlogs -Cbuild
-    - name: Generate Coverage
-      run: ninja -Cbuild coverage-xml
-    - name: Upload Coverage
-      uses: codecov/codecov-action@e28ff129e5465c2c0dcc6f003fc735cb6ae0c673 # v4.5.0
-      with:
-        file: build/meson-logs/coverage.xml

.github/workflows/msvc-ci.yml

@@ -28,16 +28,16 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
     - name: Setup Ccache
-      uses: hendrikmuhs/ccache-action@ed74d11c0b343532753ecead8a951bb09bb34bc9 # v1.2.14
+      uses: hendrikmuhs/ccache-action@a1209f81afb8c005c13b4296c32e363431bffea5 # v1.2.17
       with:
         variant: sccache
         key: ${{ github.job }}-${{ matrix.os }}-${{ matrix.ARCH }}
     - name: Setup Python
-      uses: actions/setup-python@f677139bbe7f9c59b41e40162b753c062f5d49a3 # v5.2.0
+      uses: actions/setup-python@8d9ed9ac5c53483de85588cdf95a591a75ab9f55 # v5.5.0
       with:
-        python-version: '3.x'
+        python-version: '3.12'
     - name: Setup MSVC
       uses: ilammy/msvc-dev-cmd@0b201ec74fa43914dc39ae48a89fd1d8cb592756 # v1.13.0
       with:

.github/workflows/msys2-ci.yml

@@ -21,19 +21,16 @@ jobs:
             MSYS2_ARCH: i686
           - MSYSTEM: MINGW64
             MSYS2_ARCH: x86_64
+          - MSYSTEM: CLANG64
+            MSYS2_ARCH: clang-x86_64
     name: ${{ matrix.MSYSTEM }}
 
-    env:
-      # XXX: For some reason enabling jit debugging "fixes" random python crashes
-      # see https://github.com/msys2/MINGW-packages/issues/11864
-      MSYS: "winjitdebug"
-
     defaults:
       run:
         shell: msys2 {0}
     steps:
     - name: Checkout
-      uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
     - name: Setup MSYS2
       uses: msys2/setup-msys2@cf96e00c0aab3788743aaf63b64146f0d383cee9 # v2
       with:
@@ -42,8 +39,7 @@ jobs:
         install: >-
           mingw-w64-${{ matrix.MSYS2_ARCH }}-cairo
           mingw-w64-${{ matrix.MSYS2_ARCH }}-freetype
-          mingw-w64-${{ matrix.MSYS2_ARCH }}-gcc
-          mingw-w64-${{ matrix.MSYS2_ARCH }}-gcc-libs
+          mingw-w64-${{ matrix.MSYS2_ARCH }}-cc
           mingw-w64-${{ matrix.MSYS2_ARCH }}-gettext
           mingw-w64-${{ matrix.MSYS2_ARCH }}-glib2
           mingw-w64-${{ matrix.MSYS2_ARCH }}-gobject-introspection
@@ -51,12 +47,9 @@ jobs:
           mingw-w64-${{ matrix.MSYS2_ARCH }}-icu
           mingw-w64-${{ matrix.MSYS2_ARCH }}-meson
           mingw-w64-${{ matrix.MSYS2_ARCH }}-ninja
-          mingw-w64-${{ matrix.MSYS2_ARCH }}-pkg-config
+          mingw-w64-${{ matrix.MSYS2_ARCH }}-pkgconf
           mingw-w64-${{ matrix.MSYS2_ARCH }}-python
           mingw-w64-${{ matrix.MSYS2_ARCH }}-python-pip
-    - name: Remove installed HarfBuzz DLLs
-      run: |
-        rm -f -v /ming*/bin/libharfbuzz-*.dll
     - name: Install Python Dependencies
       run: |
         pip3 install -r .ci/requirements-fonttools.txt --require-hashes
@@ -76,7 +69,7 @@ jobs:
       run: meson test --print-errorlogs --suite=harfbuzz -Cbuild
     - name: Upload DLLs
       if: always()
-      uses: actions/upload-artifact@50769540e7f4bd5e21e526ee35c689e35e0d6874 # v4.4.0
+      uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
       with:
         name: libharfbuzz-${{ matrix.MSYS2_ARCH }}
         path: ./build/src/libharfbuzz-*.dll

.github/workflows/scorecard.yml

@@ -29,12 +29,12 @@ jobs:
 
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
         with:
           persist-credentials: false
 
       - name: "Run analysis"
-        uses: ossf/scorecard-action@62b2cac7ed8198b15735ed49ab1e5cf35480ba46 # v2.4.0
+        uses: ossf/scorecard-action@f49aabe0b5af0936a0987cfb85d86b75731b0186 # v2.4.1
         with:
           results_file: results.sarif
           results_format: sarif
@@ -51,7 +51,7 @@ jobs:
       # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
       # format to the repository Actions tab.
       - name: "Upload artifact"
-        uses: actions/upload-artifact@50769540e7f4bd5e21e526ee35c689e35e0d6874 # v4.4.0
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: SARIF file
           path: results.sarif
@@ -59,6 +59,6 @@ jobs:
 
       # Upload the results to GitHub's code scanning dashboard.
       - name: "Upload to code-scanning"
-        uses: github/codeql-action/upload-sarif@294a9d92911152fe08befb9ec03e240add280cb3 # v3.26.8
+        uses: github/codeql-action/upload-sarif@45775bd8235c68ba998cffa5171334d58593da47 # v3.28.15
         with:
           sarif_file: results.sarif

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.12)
+cmake_minimum_required(VERSION 3.14)
 project(harfbuzz)
 
 message(WARN "HarfBuzz has a Meson port and tries to migrate all the other build systems to it, please consider using it as we might remove our cmake port soon.")
@@ -6,20 +6,6 @@ message(WARN "HarfBuzz has a Meson port and tries to migrate all the other build
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-## Limit framework build to Xcode generator
-if (BUILD_FRAMEWORK)
-  # for a framework build on macOS, use:
-  # cmake -DBUILD_FRAMEWORK=ON -Bbuild -H. -GXcode && cmake --build build
-  if (NOT "${CMAKE_GENERATOR}" STREQUAL "Xcode")
-    message(FATAL_ERROR
-      "You should use Xcode generator with BUILD_FRAMEWORK enabled")
-  endif ()
-  set (CMAKE_OSX_ARCHITECTURES "$(ARCHS_STANDARD_32_64_BIT)")
-  set (CMAKE_MACOSX_RPATH ON)
-  set (BUILD_SHARED_LIBS ON)
-endif ()
-
-
 ## Disallow in-source builds, as CMake generated make files can collide with autotools ones
 if (NOT MSVC AND "${PROJECT_BINARY_DIR}" STREQUAL "${PROJECT_SOURCE_DIR}")
   message(FATAL_ERROR
@@ -73,6 +59,14 @@ if (HB_HAVE_INTROSPECTION)
   set (HB_HAVE_GLIB ON)
 endif ()
 
+if (APPLE)
+  option(BUILD_FRAMEWORK "Build as Apple Frameworks" OFF)
+endif ()
+if (BUILD_FRAMEWORK)
+  set (CMAKE_MACOSX_RPATH ON)
+  set (BUILD_SHARED_LIBS OFF)
+endif ()
+
 include_directories(AFTER
   ${PROJECT_SOURCE_DIR}/src
   ${PROJECT_BINARY_DIR}/src
@@ -168,7 +162,7 @@ set (subset_project_sources
      ${PROJECT_SOURCE_DIR}/src/hb-subset-plan.cc
      ${PROJECT_SOURCE_DIR}/src/hb-subset-plan.hh
      ${PROJECT_SOURCE_DIR}/src/hb-subset-plan-member-list.hh
-     ${PROJECT_SOURCE_DIR}/src/hb-subset-repacker.cc
+     ${PROJECT_SOURCE_DIR}/src/hb-subset-serialize.cc
      ${PROJECT_SOURCE_DIR}/src/hb-subset.cc
      ${PROJECT_SOURCE_DIR}/src/hb-subset.hh
      ${PROJECT_SOURCE_DIR}/src/hb-repacker.hh
@@ -210,6 +204,7 @@ set (project_headers
      ${PROJECT_SOURCE_DIR}/src/hb-ot.h
      ${PROJECT_SOURCE_DIR}/src/hb-paint.h
      ${PROJECT_SOURCE_DIR}/src/hb-set.h
+     ${PROJECT_SOURCE_DIR}/src/hb-script-list.h
      ${PROJECT_SOURCE_DIR}/src/hb-shape-plan.h
      ${PROJECT_SOURCE_DIR}/src/hb-shape.h
      ${PROJECT_SOURCE_DIR}/src/hb-style.h
@@ -219,7 +214,7 @@ set (project_headers
 )
 set (subset_project_headers
      ${PROJECT_SOURCE_DIR}/src/hb-subset.h
-     ${PROJECT_SOURCE_DIR}/src/hb-subset-repacker.h
+     ${PROJECT_SOURCE_DIR}/src/hb-subset-serialize.h
 )
 
 ## Find and include needed header folders and libraries
@@ -239,7 +234,7 @@ if (HB_HAVE_FREETYPE AND NOT TARGET freetype)
   set (CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} ${FREETYPE_INCLUDE_DIRS})
   set (CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${FREETYPE_LIBRARIES})
 
-  check_funcs(FT_Get_Var_Blend_Coordinates FT_Set_Var_Blend_Coordinates FT_Done_MM_Var)
+  check_funcs(FT_Get_Var_Blend_Coordinates FT_Set_Var_Blend_Coordinates FT_Done_MM_Var FT_Get_Transform)
 endif ()
 
 if (HB_HAVE_FREETYPE)
@@ -340,15 +335,15 @@ endif ()
 if (WIN32 AND HB_HAVE_GDI)
   add_definitions(-DHAVE_GDI)
   list(APPEND project_headers ${PROJECT_SOURCE_DIR}/src/hb-gdi.h)
-  list(APPEND THIRD_PARTY_LIBS gdi32)
-  list(APPEND PC_LIBS_PRIV -lgdi32)
+  list(APPEND THIRD_PARTY_LIBS gdi32 user32)
+  list(APPEND PC_LIBS_PRIV -lgdi32 -luser32)
 endif ()
 
 if (WIN32 AND HB_HAVE_UNISCRIBE)
   add_definitions(-DHAVE_UNISCRIBE)
   list(APPEND project_headers ${PROJECT_SOURCE_DIR}/src/hb-uniscribe.h)
-  list(APPEND THIRD_PARTY_LIBS usp10 gdi32 rpcrt4)
-  list(APPEND PC_LIBS_PRIV -lusp10 -lgdi32 -lrpcrt4)
+  list(APPEND THIRD_PARTY_LIBS usp10 gdi32 rpcrt4 user32)
+  list(APPEND PC_LIBS_PRIV -lusp10 -lgdi32 -lrpcrt4 -luser32)
 endif ()
 
 if (WIN32 AND HB_HAVE_DIRECTWRITE)
@@ -506,6 +501,21 @@ if (HB_HAVE_ICU)
 
   if (BUILD_SHARED_LIBS)
     set_target_properties(harfbuzz harfbuzz-icu PROPERTIES VISIBILITY_INLINES_HIDDEN TRUE)
+
+    if (BUILD_FRAMEWORK)
+      set_target_properties(harfbuzz harfbuzz-icu PROPERTIES
+        FRAMEWORK TRUE
+        FRAMEWORK_VERSION "${HB_VERSION}"
+        PUBLIC_HEADER "${project_headers}"
+        PRODUCT_BUNDLE_IDENTIFIER "harfbuzz.harfbuzz-icu"
+        XCODE_ATTRIBUTE_INSTALL_PATH "@rpath"
+        OUTPUT_NAME "harfbuzz-icu"
+        XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ""
+        MACOSX_FRAMEWORK_IDENTIFIER "harfbuzz-icu"
+        MACOSX_FRAMEWORK_SHORT_VERSION_STRING "${HB_VERSION}"
+        MACOSX_FRAMEWORK_BUNDLE_VERSION "${HB_VERSION}"
+      )
+    endif ()
   endif ()
 endif ()
 
@@ -513,12 +523,27 @@ endif ()
 ## Define harfbuzz-subset library
 if (HB_BUILD_SUBSET)
   add_library(harfbuzz-subset ${subset_project_sources} ${subset_project_headers})
-  list(APPEND project_headers ${PROJECT_SOURCE_DIR}/src/hb-subset.h ${PROJECT_SOURCE_DIR}/src/hb-subset-repacker.h)
+  list(APPEND project_headers ${PROJECT_SOURCE_DIR}/src/hb-subset.h ${PROJECT_SOURCE_DIR}/src/hb-subset-serialize.h)
   add_dependencies(harfbuzz-subset harfbuzz)
   target_link_libraries(harfbuzz-subset harfbuzz ${THIRD_PARTY_LIBS})
 
   if (BUILD_SHARED_LIBS)
     set_target_properties(harfbuzz harfbuzz-subset PROPERTIES VISIBILITY_INLINES_HIDDEN TRUE)
+
+    if (BUILD_FRAMEWORK)
+      set_target_properties(harfbuzz harfbuzz-subset PROPERTIES
+        FRAMEWORK TRUE
+        FRAMEWORK_VERSION "${HB_VERSION}"
+        PUBLIC_HEADER "${project_headers}"
+        PRODUCT_BUNDLE_IDENTIFIER "harfbuzz.harfbuzz-subset"
+        XCODE_ATTRIBUTE_INSTALL_PATH "@rpath"
+        OUTPUT_NAME "harfbuzz-subset"
+        XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ""
+        MACOSX_FRAMEWORK_IDENTIFIER "harfbuzz-subset"
+        MACOSX_FRAMEWORK_SHORT_VERSION_STRING "${HB_VERSION}"
+        MACOSX_FRAMEWORK_BUNDLE_VERSION "${HB_VERSION}"
+      )
+    endif ()
   endif ()
 endif ()
 
@@ -568,7 +593,22 @@ if (HB_HAVE_GOBJECT)
   target_link_libraries(harfbuzz-gobject harfbuzz ${GOBJECT_LIBRARIES} ${THIRD_PARTY_LIBS})
 
   if (BUILD_SHARED_LIBS)
-    set_target_properties(harfbuzz-gobject PROPERTIES VISIBILITY_INLINES_HIDDEN TRUE)
+    set_target_properties(harfbuzz harfbuzz-gobject PROPERTIES VISIBILITY_INLINES_HIDDEN TRUE)
+
+    if (BUILD_FRAMEWORK)
+      set_target_properties(harfbuzz-gobject PROPERTIES
+        FRAMEWORK TRUE
+        FRAMEWORK_VERSION "${HB_VERSION}"
+        PUBLIC_HEADER "${project_headers}"
+        PRODUCT_BUNDLE_IDENTIFIER "harfbuzz.harfbuzz-gobject"
+        XCODE_ATTRIBUTE_INSTALL_PATH "@rpath"
+        OUTPUT_NAME "harfbuzz-gobject"
+        XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ""
+        MACOSX_FRAMEWORK_IDENTIFIER "harfbuzz-gobject"
+        MACOSX_FRAMEWORK_SHORT_VERSION_STRING "${HB_VERSION}"
+        MACOSX_FRAMEWORK_BUNDLE_VERSION "${HB_VERSION}"
+      )
+    endif ()
   endif ()
 endif ()
 
@@ -581,6 +621,21 @@ if (HB_HAVE_CAIRO)
 
   if (BUILD_SHARED_LIBS)
     set_target_properties(harfbuzz-cairo PROPERTIES VISIBILITY_INLINES_HIDDEN TRUE)
+
+    if (BUILD_FRAMEWORK)
+      set_target_properties(harfbuzz-cairo PROPERTIES
+        FRAMEWORK TRUE
+        FRAMEWORK_VERSION "${HB_VERSION}"
+        PUBLIC_HEADER "${project_headers}"
+        PRODUCT_BUNDLE_IDENTIFIER "harfbuzz.harbuzz-cairo"
+        XCODE_ATTRIBUTE_INSTALL_PATH "@rpath"
+        OUTPUT_NAME "harfbuzz-cairo"
+        XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ""
+        MACOSX_FRAMEWORK_IDENTIFIER "harfbuzz-cairo"
+        MACOSX_FRAMEWORK_SHORT_VERSION_STRING "${HB_VERSION}"
+        MACOSX_FRAMEWORK_BUNDLE_VERSION "${HB_VERSION}"
+      )
+    endif ()
   endif ()
 endif()
 
@@ -719,8 +774,12 @@ if (BUILD_FRAMEWORK)
   set (CMAKE_MACOSX_RPATH ON)
   set_target_properties(harfbuzz PROPERTIES
     FRAMEWORK TRUE
+    FRAMEWORK_VERSION "${HB_VERSION}"
     PUBLIC_HEADER "${project_headers}"
+    PRODUCT_BUNDLE_IDENTIFIER "harfbuzz"
     XCODE_ATTRIBUTE_INSTALL_PATH "@rpath"
+    OUTPUT_NAME "harfbuzz"
+    XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ""
   )
   set (MACOSX_FRAMEWORK_IDENTIFIER "harfbuzz")
   set (MACOSX_FRAMEWORK_SHORT_VERSION_STRING "${HB_VERSION}")
@@ -881,7 +940,8 @@ if (NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
     ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
     LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
     RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-    FRAMEWORK DESTINATION Library/Frameworks
+    FRAMEWORK DESTINATION Library/Frameworks 
+    COMPONENT runtime OPTIONAL
   )
   make_pkgconfig_pc_file("harfbuzz")
   install(EXPORT harfbuzzConfig
@@ -893,7 +953,8 @@ if (NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
       ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
       LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
       RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-      FRAMEWORK DESTINATION Library/Frameworks
+      FRAMEWORK DESTINATION Library/Frameworks 
+      COMPONENT runtime OPTIONAL
     )
     make_pkgconfig_pc_file("harfbuzz-icu")
   endif ()
@@ -902,13 +963,19 @@ if (NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
       ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
       LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
       RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-      FRAMEWORK DESTINATION Library/Frameworks
+      FRAMEWORK DESTINATION Library/Frameworks 
+      COMPONENT runtime OPTIONAL
     )
     make_pkgconfig_pc_file("harfbuzz-cairo")
   endif ()
   if (HB_BUILD_SUBSET)
     install(TARGETS harfbuzz-subset
+      EXPORT harfbuzz-subset
       ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+      LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+      RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+      FRAMEWORK DESTINATION Library/Frameworks 
+      COMPONENT runtime OPTIONAL
     )
     make_pkgconfig_pc_file("harfbuzz-subset")
   endif ()
@@ -943,9 +1010,12 @@ if (NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL)
   endif ()
   if (HB_HAVE_GOBJECT)
     install(TARGETS harfbuzz-gobject
+      EXPORT harfbuzz-gobject
       ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
       LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
       RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+      FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR} 
+      COMPONENT runtime OPTIONAL
     )
     make_pkgconfig_pc_file("harfbuzz-gobject")
     if (HB_HAVE_INTROSPECTION)

NEWS

@@ -1,12 +1,232 @@
+Overview of changes leading to 11.1.0
+Wednesdat, April 16, 2025
+====================================
+- Include bidi mirroring variants of the requested codepoints when subsetting.
+  The new HB_SUBSET_FLAGS_NO_BIDI_CLOSURE can be used to disable this
+  behaviour.
+- Various bug fixes.
+- Various build fixes and improvements.
+- Various test suite improvements.
+
+New API:
++HB_SUBSET_FLAGS_NO_BIDI_CLOSURE
+
+
+Overview of changes leading to 11.0.1
+Friday, April 4, 2025
+====================================
+- The change in version 10.3.0 to apply “trak” table tracking values to glyph
+  advances directly has been reverted as it required every font functions
+  implementation to handle it, which breaks existing custom font functions.
+  Tracking is instead back to being applied during shaping.
+- When `directwrite` integration is enabled, we now link to `dwrite.dll`
+  instead of dynamically loading it.
+- A new experimental APIs for getting raw “CFF” and “CFF2” CharStrings.
+- We now provide manpages for the various command line utilities. Building
+  manpages requires “help2man” and will be skipped if it is not present.
+- The command line utilities now set different return value for different kinds
+  of failures. Details are provided in the manpages.
+- Various fixes and improvements to `fontations` font functions.
+- All shaping operations using the `ot` shaper have become memory
+  allocation-free.
+- Glyph extents returned by `hb-ot` and `hb-ft` font functions are now rounded
+  in stead of flooring/ceiling them, which also matches what other font
+  libraries do.
+- Fix “AAT” deleted glyph marks interfering with fallback mark positioning.
+- Glyph outlines emboldening have been moved out of `hb-ot` and `hb-ft` font
+  functions to the HarfBuzz font layer, so that it works with any font
+  functions implementation.
+- Fix our fallback C++11 atomics integration, which seems to not be widely
+  used.
+- Various testing fixes and improvements.
+- Various subsetting fixes and improvements.
+- Various other fixes and improvements.
+
+
+Overview of changes leading to 11.0.0
+Monday, March 24, 2025
+====================================
+- There are three new font-functions implementations (integrations) in this
+  release:
+  * `hb-coretext` has gained one, calling into the CoreText library,
+  * `hb-directwrite` has gained one, calling into the DirectWrite library.
+  * `hb-fontations` has gained one, calling into the Skrifa Rust library.
+  All three are mostly useful for performance and correctness testing, but some
+  clients might find them useful.
+  An API is added to use them from a single API by providing a backend name
+  string:
+  * `hb_font_set_funcs_using()`
+- Several new APIs are added, to load a font-face using different
+  "face-loaders", and a single entry point to them all using a loader name
+  string:
+  * `hb_ft_face_create_from_file_or_fail()` and
+    `hb_ft_face_create_from_blob_or_fail()`
+  * `hb_coretext_face_create_from_file_or_fail()` and
+    `hb_coretext_face_create_from_blob_or_fail()`
+  * `hb_directwrite_face_create_from_file_or_fail()` and
+    `hb_directwrite_face_create_from_blob_or_fail()`
+  * `hb_face_create_from_file_or_fail_using()`
+- All drawing and painting operations using the default, `hb-ot` functions have
+  become memory allocation-free.
+- Several performance optimizations have been implemented.
+- Application of the `trak` table during shaping has been improved.
+- The `directwrite` shaper now supports font variations, and correctly applies
+  user features.
+- The `hb-directwrite` API and shaper has graduated from experimental.
+- Various bug fixes and other improvements.
+
+- New API:
++hb_malloc
++hb_calloc
++hb_realloc
++hb_free
++hb_face_list_loaders
++hb_face_create_or_fail_using
++hb_face_create_from_file_or_fail_using
++hb_font_list_funcs
++hb_font_set_funcs_using
++hb_coretext_face_create_from_blob_or_fail
++hb_directwrite_face_create_from_file_or_fail
++hb_directwrite_face_create_from_blob_or_fail
++hb_directwrite_font_create
++hb_directwrite_font_get_dw_font_face
++hb_directwrite_font_set_funcs
++hb_fontations_font_set_funcs
++hb_ft_face_create_from_blob_or_fail
++hb_paint_push_font_transform
++hb_paint_push_inverse_font_transform
++HB_BUFFER_CLUSTER_LEVEL_GRAPHEMES
++HB_BUFFER_CLUSTER_LEVEL_IS_MONOTONE
++HB_BUFFER_CLUSTER_LEVEL_IS_GRAPHEMES
++HB_BUFFER_CLUSTER_LEVEL_IS_CHARACTERS
+
+- Deprecated API:
++hb_directwrite_font_get_dw_font
+
+
+Overview of changes leading to 10.4.0
+Saturday, March 1, 2025
+====================================
+- Drawing glyphs using hb-draw API now avoids any “malloc” calls, which
+  improves drawing performance by 10+%.
+- Add support new “GVAR” table fonts with more than 65535 glyphs. Support is
+  currently behind a compilation flag and is disabled by default.
+- Some hb-directwrite and hb-ft APIs got renamed with more clear names and the
+  old names are deprecated.
+- Various build and fuzzing fixes.
+
+- New API:
++hb_directwrite_face_get_dw_font_face()
++hb_ft_font_get_ft_face()
+
+- Deprecated API:
++hb_directwrite_face_get_font_face()
++hb_ft_font_get_face()
+
+
+Overview of changes leading to 10.3.0
+Thursday, February 11, 2025
+====================================
+- Vastly improved “AAT” shaping performance. LucidaGrande benchmark-shape
+  before: 14.6ms after: 5.9ms.
+- Improved OpenType shaping performance (kerning / ligature), at the expense of
+  ~1kb per face allocated cache memory. Roboto-Regular benchmark-shape before:
+  10.3ms after: 9.4ms.
+- Improved “COLRv1” benchmark-font paint performance. Before: 7.85ms after
+  4.85ms.
+- Don’t apply glyph substitutions in “morx” table of a font with known broken
+  “morx” table (AALMAGHRIBI.ttf font).
+- Update IANA and OT language registries.
+- Various documentation updates.
+- Various build improvements, and test speed-ups.
+- The “hb_face_reference_blob()” API now works for faces created with
+  “hb_face_create_for_tables()” if the face sets “get_table_tags” callback.
+  This constructs a new face blob from individual table blobs.
+- Various fixes to how “trak” table is handled to bring it closer to Core Text
+  behaviour. Particularly, the tracking values for sizes not explicitly set in
+  the table are now properly interpolated, and the tracking is applied to glyph
+  advances when they are returned by ot-font functions, instead of applying
+  them during shaping. The “trak” pseudo OpenType feature that could be used to
+  disable “trak” table application have been dropped.
+- Core Text font functions now support non-BMP code points.
+- The drawing algorithm used by hb-draw for “glyf” table now match the
+  algorithm used by FreeType and Core Text.
+- The “hb_coretext_font_create()” API now copy font variations from Core Text
+  font to the created HarfBuzz font.
+- Add an API to get the feature tags enabled on a given shape-plan after
+  executing it, which can be used to applications to show in the UI what
+  features are applied by default (which can vary based on the font, the
+  script, the language, and the direction set on the buffer).
+- Add APIs to created HarfBuzz font from DirectWrite font, and copy the font
+  variations.
+
+- New API:
++hb_directwrite_font_create()
++hb_directwrite_font_get_dw_font()
++hb_ot_shape_plan_get_feature_tags()
+
+
+Overview of changes leading to 10.2.0
+Saturday, January 11, 2025
+====================================
+- Consider Unicode Variation Selectors when subsetting “cmap” table.
+- Guard hb_cairo_glyphs_from_buffer() against malformed UTF-8 strings.
+- Fix incorrect “COLR” v1 glyph scaling in hb-cairo.
+- Use locale-independent parsing of double numbers is “hb-subset” command line
+  tool.
+- Fix incorrect zeroing of advance width of base glyphs in various “Courier New”
+  font versions due to incorrect “GDEF” glyph classes.
+- Fix handling of long language codes with “HB_LEAN” configuration.
+- Update OpenType language system registry.
+- Allow all Myanmar tone marks (including visarga) in any order
+- Don’t insert U+25CC DOTTED CIRCLE before superscript/subscript digits
+- Handle Garay script as right to left script.
+- New API for serializing font tables and potentially repacking them in optimal
+  way. This was a previously experimental-only API.
+- New API for converting font variation setting from and to strings.
+- Various build fixes
+- Various subsetter and instancer fixes.
+
+- New API:
++hb_subset_serialize_link_t
++hb_subset_serialize_object_t
++hb_subset_serialize_or_fail()
++hb_subset_axis_range_from_string()
++hb_subset_axis_range_to_string()
+
+
+Overview of changes leading to 10.1.0
+Tuesday, November 5, 2024
+====================================
+- Fix the sign of fallback vertical glyph advance (used when font has no
+  vertical advance data).
+- Increase maximum “CFF” operands limit 20 times to support more complex fonts.
+- Add “--face-loader” option to command line utilities.
+- Support “COLR” v0 table in hb_font_get_glyph_extents().
+- Add support for font functions that use Core Text APIs, similar to FreeType
+  font functions. This allows, for example, using drawing fonts that use the new
+  (and undocumented) “hvgl” table.
+- Update IANA and OT language registries, as well ase USE data files.
+- Fix build with ICU 76.
+- Various compiler warnings and build fixes.
+- Various subsetter fixes.
+
+- New API:
++hb_face_create_or_fail()
++hb_face_create_from_file_or_fail()
++hb_coretext_face_create_from_file_or_fail()
++hb_coretext_font_set_funcs()
++hb_ft_face_create_from_file_or_fail()
+
 Overview of changes leading to 10.0.1
-Tuesday, Sep 24, 2024
+Tuesday, September 24, 2024
 ====================================
 - Relax sanitization checks for “morx” subtables to fix broken AAT shaping of
   macOS 15.0 version of GeezaPro.
 
 
 Overview of changes leading to 10.0.0
-Monday, Sep 23, 2024
+Monday, September 23, 2024
 ====================================
 - Unicode 16.0.0 support.
 - Various documentation fixes.
@@ -131,10 +351,10 @@ Saturday, November 11, 2023
   tools. Old option is kept as an alias.
 
 - New API:
-HB_AAT_LAYOUT_FEATURE_TYPE_CURSIVE_CONNECTION
++HB_AAT_LAYOUT_FEATURE_TYPE_CURSIVE_CONNECTION
 
 - Deprecated API:
-HB_AAT_LAYOUT_FEATURE_TYPE_CURISVE_CONNECTION
++HB_AAT_LAYOUT_FEATURE_TYPE_CURISVE_CONNECTION
 
 Overview of changes leading to 8.2.2
 Wednesday, October 18, 2023

README.md

@@ -1,9 +1,9 @@
-[![Linux CI Status](https://github.com/harfbuzz/harfbuzz/workflows/linux-ci/badge.svg)](https://github.com/harfbuzz/harfbuzz/workflows/linux-ci/badge.svg)
+[![Linux CI Status](https://github.com/harfbuzz/harfbuzz/actions/workflows/linux-ci.yml/badge.svg)](https://github.com/harfbuzz/harfbuzz/actions/workflows/linux-ci.yml)
+[![macoOS CI Status](https://github.com/harfbuzz/harfbuzz/actions/workflows/macos-ci.yml/badge.svg)](https://github.com/harfbuzz/harfbuzz/actions/workflows/macos-ci.yml)
+[![Windows CI Status](https://github.com/harfbuzz/harfbuzz/actions/workflows/msvc-ci.yml/badge.svg)](https://github.com/harfbuzz/harfbuzz/actions/workflows/msvc-ci.yml)
 [![CircleCI Build Status](https://circleci.com/gh/harfbuzz/harfbuzz/tree/main.svg?style=svg)](https://circleci.com/gh/harfbuzz/harfbuzz/tree/main)
-[![OSS-Fuzz Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/harfbuzz.svg)](https://oss-fuzz-build-logs.storage.googleapis.com/index.html)
+[![OSS-Fuzz Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/harfbuzz.svg)](https://oss-fuzz-build-logs.storage.googleapis.com/index.html#harfbuzz)
 [![Coverity Scan Build Status](https://scan.coverity.com/projects/15166/badge.svg)](https://scan.coverity.com/projects/harfbuzz)
-[![Codacy Badge](https://app.codacy.com/project/badge/Grade/89c872f5ce1c42af802602bfcd15d90a)](https://app.codacy.com/gh/harfbuzz/harfbuzz/dashboard?utm_source=gh&utm_medium=referral&utm_content=&utm_campaign=Badge_grade)
-[![Codecov Code Coverage](https://codecov.io/gh/harfbuzz/harfbuzz/branch/main/graph/badge.svg)](https://codecov.io/gh/harfbuzz/harfbuzz)
 [![Packaging status](https://repology.org/badge/tiny-repos/harfbuzz.svg)](https://repology.org/project/harfbuzz/versions)
 [![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/harfbuzz/harfbuzz/badge)](https://securityscorecards.dev/viewer/?uri=github.com/harfbuzz/harfbuzz)
 
@@ -35,13 +35,20 @@ will also find Win32/Win64 binary bundles that include `libharfbuzz` DLL,
 `hb-view.exe`, `hb-shape.exe`, and all dependencies.
 
 The canonical source tree is available on [github][4].
+Both development and user support discussion around HarfBuzz happens on
+[github][4] as well.
 
 The API that comes with `hb.h` will not change incompatibly. Other, peripheral,
 headers are more likely to go through minor modifications, but again, we do our
 best to never change API in an incompatible way. We will never break the ABI.
 
-If you are not sure whether Pango or HarfBuzz is right for you, read [Pango vs
-HarfBuzz][5].
+The API and ABI are stable even across major version number jumps. In fact,
+current HarfBuzz is API/ABI compatible all the way back to the 0.9.x series.
+If one day we need to break the API/ABI, that would be called a new a library.
+
+As such, we bump the major version number only when we add major new features,
+the minor version when there is new API, and the micro version when there
+are bug fixes.
 
 ## Development
 
@@ -51,24 +58,38 @@ For custom configurations, see [CONFIG.md](CONFIG.md).
 
 For testing and profiling, see [TESTING.md](TESTING.md).
 
+For using with Python, see [README.python.md](README.python.md). There is also [uharfbuzz](https://github.com/harfbuzz/uharfbuzz).
+
+For cross-compiling to Windows from Linux or macOS, see [README.mingw.md](README.mingw.md).
+
+To report bugs or submit patches please use [github][4] issues and pull-requests.
+
+### Developer documents
+
 To get a better idea of where HarfBuzz stands in the text rendering stack you
 may want to read [State of Text Rendering 2024][6].
 Here are a few presentation slides about HarfBuzz at the
 Internationalization and Unicode Conference over the years:
 
-*   November 2014, [Unicode, OpenType, and HarfBuzz: Closing the Circle][7],
-*   October 2012, [HarfBuzz, The Free and Open Text Shaping Engine][8],
-*   October 2009, [HarfBuzz: the Free and Open Shaping Engine][9].
+- 2014 – [Unicode, OpenType, and HarfBuzz: Closing the Circle][7]
+- 2012 – [HarfBuzz, The Free and Open Text Shaping Engine][8]
+- 2016 – [Ten Years of HarfBuzz][20]
+- 2009 – [HarfBuzz: the Free and Open Shaping Engine][9]
 
-Both development and user support discussion around HarfBuzz happens on the
-[github][4].
+More presentations and papers are available on [behdad][11]'s website.
+In particular, the following _studies_ are relevant to HarfBuzz development:
 
-To report bugs or submit patches please use [github][4] issues and
-pull-requests.
+- 2025 – [Subsetting][21]
+- 2025 – [Caching][12]
+- 2025 – [`hb-decycler`][13]
+- 2022 – [`hb-iter`][14]
+- 2022 – [A C library written in C++][15]
+- 2022 – [The case of the slow `hb-ft` `>h_advance` function][18]
+- 2022 – [PackTab: A static integer table packer][16]
+- 2020 – [HarfBuzz OT+AAT "Unishaper"][19]
+- 2014 – [Building the Indic Shaper][17]
+- 2012 – [Memory Consumption][10]
 
-For a comparison of old vs new HarfBuzz memory consumption see [this][10].
-
-<!--See past and upcoming [HarfBuzz Hackfests](https://freedesktop.org/wiki/Software/HarfBuzz/Hackfests/)!-->
 
 ## Name
 
@@ -85,6 +106,8 @@ transliterated using the Latin script. It also means "talkative" or
 > TrueType that adds support for complex script rendering, and HarfBuzz is an
 > implementation of OpenType complex text shaping.
 
+## Distribution
+
 <details>
   <summary>Packaging status of HarfBuzz</summary>
 
@@ -96,9 +119,19 @@ transliterated using the Latin script. It also means "talkative" or
 [2]: https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6AATIntro.html
 [3]: https://github.com/harfbuzz/harfbuzz/releases
 [4]: https://github.com/harfbuzz/harfbuzz
-[5]: http://mces.blogspot.com/2009/11/pango-vs-harfbuzz.html
 [6]: http://behdad.org/text2024
-[7]: https://goo.gl/FSIQuC
-[8]: https://goo.gl/2wSRu
+[7]: https://docs.google.com/presentation/d/1x97pfbB1gbD53Yhz6-_yBUozQMVJ_5yMqqR_D-R7b7I/preview
+[8]: https://docs.google.com/presentation/d/1ySTZaXP5XKFg0OpmHZM00v5b17GSr3ojnzJekl4U8qI/preview
 [9]: http://behdad.org/download/Presentations/slippy/harfbuzz_slides.pdf
-[10]: https://goo.gl/woyty
+[10]: https://docs.google.com/document/d/12jfNpQJzeVIAxoUSpk7KziyINAa1msbGliyXqguS86M/preview
+[11]: https://behdad.org/
+[12]: https://docs.google.com/document/d/1_VgObf6Je0J8byMLsi7HCQHnKo2emGnx_ib_sHo-bt4/preview
+[13]: https://docs.google.com/document/d/1Y-u08l9YhObRVObETZt1k8f_5lQdOix9TRH3zEXaoAw/preview
+[14]: https://docs.google.com/document/d/1o-xvxCbgMe9JYFHLVnPjk01ZY_8Cj0vB9-KTI1d0nyk/preview
+[15]: https://docs.google.com/document/d/18hI56KJpvXtwWbc9QSaz9zzhJwIMnrJ-zkAaKS-W-8k/preview
+[16]: https://docs.google.com/document/d/1Xq3owVt61HVkJqbLFHl73il6pcTy6PdPJJ7bSouQiQw/preview
+[17]: https://docs.google.com/document/d/1wMPwVNBvsIriamcyBO5aNs7Cdr8lmbwLJ8GmZBAswF4/preview
+[18]: https://docs.google.com/document/d/1wskYbA-czBt57oH9gEuGf3sWbTx7bfOiEIcDs36-heo/preview
+[19]: https://prezi.com/view/THNPJGFVDUCWoM20syev/
+[20]: https://behdad.org/doc/harfbuzz10years-slides.pdf
+[21]: https://docs.google.com/document/d/1_vZrt97OorJ0jA1YzJ29LRcGr3YGrNJANdOABjVZGEs/preview

README.mingw.md

@@ -0,0 +1,216 @@
+Most HarfBuzz developers do so on Linux or macOS. However, HarfBuzz is a
+cross-platform library and it is important to ensure that it works on Windows
+as well. In particular, we use this workflow to develop and test the HarfBuzz
+Uniscribe shaper and DirectWrite shaper and font backend, all from Linux or
+macOS.
+
+This document provides instructions for cross-compiling HarfBuzz on Linux or
+macOS, for Windows, using the MinGW toolchain, and running tests and utilties
+under Wine.
+
+We then discuss using native Windows Uniscribe or DirectWrite DLLs, which
+allows you to test HarfBuzz's shaping against the Microsoft shaping engines
+instead of those provided by Wine.
+
+This document assumes that you are familiar with building HarfBuzz on Linux or
+macOS.
+
+You can build for 32bit or 64bit Windows. If your intention is to use a native
+Uniscribe usp10.dll from Windows 7 or before, you would need to build for 32bit.
+If you want to use a native DirectWrite DLL from Windows 10 or later, you would
+need to build for 64bit.
+
+We suggest you read to the end of this document before starting, as it provides
+a few different ways to build and test HarfBuzz for Windows.
+
+1. Install Wine.
+
+  - Fedora: `dnf install wine`.
+  - Ubuntu, 32bit: `apt install wine wine32`.
+  - Ubuntu, 64bit: `apt install wine wine64`.
+  - Mac: `brew install wine-stable`.
+
+Note that to run Wine on Apple silicon systems, you need the Apple Rosetta translator.
+Follow the instructions you got from brew. This should do it:
+
+  - `softwareupdate --install-rosetta --agree-to-license`
+
+2. Install the `mingw-w64` cross-compiler.
+
+  - Fedora, 32bit: `dnf install mingw32-gcc-c++`
+  - Fedora, 64bit: `dnf install mingw64-gcc-c++`
+  - Ubuntu, 32bit: `apt install g++-mingw-w64-i686`
+  - Ubuntu, 64bit: `apt install g++-mingw-w64-x86-64`
+  - Mac: `brew install mingw-w64`
+
+3. Install dependencies.
+
+First, make sure you do not have the mingw32 harfbuzz package, as that will
+override our own build with older `meson`:
+
+  - Fedora, 32bit: `dnf remove mingw32-harfbuzz`
+  - Fedora, 64bit: `dnf remove mingw64-harfbuzz`
+
+Then install the actual dependencies:
+
+  - Fedora, 32bit: `dnf install mingw32-glib2 mingw32-cairo mingw32-freetype`
+  - Fedora, 64bit: `dnf install mingw64-glib2 mingw64-cairo mingw64-freetype`
+
+If you cannot find these packages for your distribution, or you are on macOS,
+you can skip to the next step, as meson will automatically download and build
+the dependencies for you.
+
+4. If you are familiar with `meson`, you can use the cross-compile files we
+provide to find your way around. But we do not recommend this way. Read until
+the end of this section before deciding which one to use.
+
+  - 32bit: `meson --cross-file=.ci/win32-cross-file.txt build-win -Dglib-enabled -Dcairo=enabled -Dgdi=enabled -Ddirectwrite=enabled`
+  - 64bit: `meson --cross-file=.ci/win64-cross-file.txt build-win -Dglib-enabled -Dcairo=enabled -Dgdi=enabled -Ddirectwrite=enabled`
+
+In which case, you will proceed to run `ninja` as usual to build:
+
+  - `ninja -C build-win`
+
+Or you can simply invoke the scripts we provide for our Continuous Integration
+system, to configure and build HarfBuzz for you. This is the easiest way to
+build HarfBuzz for Windows and how we build our Windows binaries:
+
+  - 32bit: `./.ci/build-win.sh 32 && ln -s build-win32 build-win`
+  - 64bit: `./.ci/build-win.sh 64 && ln -s build-win64 build-win`
+
+This might take a while, since, if you do not have the dependencies installed,
+meson will download and build them for you.
+
+5. If everything succeeds, you should have the `hb-shape.exe`, `hb-view.exe`,
+`hb-subset.exe`, and `hb-info.exe` executables in `build-win/util`.
+
+6. Configure your wine to find system mingw libraries. While there, set it also
+to find the built HarfBuzz DLLs:
+
+  - Fedora, 32bit: `export WINEPATH="$HOME/harfbuzz/build-win/src;/usr/i686-w64-mingw32/sys-root/mingw/bin"`
+  - Fedora, 64bit: `export WINEPATH="$HOME/harfbuzz/build-win/src;/usr/x86_64-w64-mingw32/sys-root/mingw/bin"`
+  - Other systems: `export WINEPATH="$HOME/harfbuzz/build-win/src"`
+
+Adjust for the path where you have built HarfBuzz.  You might want to add this
+to your `.bashrc` or `.zshrc` file.
+
+Alternatively, can skip this step if commands are run through the `meson devenv`
+command, which we will introduce in the next step. I personally find it more
+convenient to set the `WINEPATH` variable, as it allows me to run the executables
+directly from the shell.
+
+7. Run the `hb-shape` executable under Wine:
+
+  - `wine build-win/util/hb-shape.exe perf/fonts/Roboto-Regular.ttf Test`
+
+Or using `meson devenv to do the same:
+
+  - `meson devenv -C build-win util/hb-shape.exe $PWD/perf/fonts/Roboto-Regular.ttf Test`
+
+You probably will get lots of Wine warnings, but if all works fine, you
+should see:
+```
+[gid57=0+1123|gid74=1+1086|gid88=2+1057|gid89=3+670]
+```
+
+You can make Wine less verbose, without hiding all errors, by setting:
+
+  - `export WINEDEBUG=fixme-all,warn-all,err-plugplay,err-seh,err-rpc,err-ntoskrnl,err-winediag,err-systray,err-hid`
+
+Add this to your `.bashrc` or `.zshrc` file as well.
+
+Next, let's try some non-Latin text. Unfortunately, the command-line parsing of
+our cross-compiled glib is not quite Unicode-aware, at least when run under
+Wine. So you will need to find some other way to feed Unicode text to the
+shaper. There are three different ways you can try:
+
+  - `echo حرف | wine build-win/util/hb-shape.exe perf/fonts/Amiri-Regular.ttf`
+  - `wine build-win/util/hb-shape.exe perf/fonts/Amiri-Regular.ttf -u 062D,0631,0641`
+  - `wine build-win/util/hb-shape.exe perf/fonts/Amiri-Regular.ttf --text-file harf.txt`
+
+To get the Unicode codepoints for a string, you can use the `hb-unicode-decode`
+utility:
+```
+$ test/shape/hb-unicode-decode حرف
+U+062D,U+0631,U+0641
+```
+
+8. Next, let's try the `hb-view` utility. By default, `hb-view` outputs ANSI text,
+which Wine will not display correctly. You can use the `-o` option to redirect the
+output to a file, or just redirect the output using the shell, which will produce
+a PNG file.
+
+  - `wine build-win/util/hb-view.exe perf/fonts/Roboto-Regular.ttf Test > test.png`
+
+7. As noted, if your Linux has `binfmt_misc` enabled, you can run the executables
+directly. If not, you can modify the cross-file to use the `exe_wrapper` option as
+specified before.
+
+  - `build-win/util/hb-shape.exe perf/fonts/Roboto-Regular.ttf Test`
+
+If that does not work, you can use the `wine` command as shown above.
+
+10. You can try running the test suite. If on Linux with `binfmt_misc` enabled, you
+can run the tests directly:
+
+  - `ninja -C build-win test`
+
+For other situations, use `meson devenv`:
+
+  - `meson devenv -C build-win ninja test`
+
+This might take a couple of minutes to run. Running under Wine is expensive, so
+be patient.
+
+If all goes well, tests should run. If all is well, you should probably see about
+400 tests pass, some skipped, but none failing.
+
+11. In the above testing situation, the `directwrite` test will be disabled
+automatically upon detection of running under Wine. The reason the `directwrite`
+test would otherwise fails is that we are running against the Wine-provided
+DirectWrite DLL, which is an incomplete reimplementation of the DirectWrite API
+by Wine, and not the real thing.
+
+If you want to test the Uniscribe or DirectWrite shapers against the real
+Uniscribe / DirectWrite, you can follow the instructions below.
+
+11. Old Uniscribe: Assuming a 32bit build for now.
+
+Bring a 32bit version of `usp10.dll` for yourself from
+`C:\Windows\SysWOW64\usp10.dll` of your 64bit Windows installation,
+or `C:\Windows\System32\usp10.dll` for 32bit Windows installation.
+
+You want one from Windows 7 or earlier.  One that is not just a proxy for
+`TextShaping.dll`.  Rule of thumb, your `usp10.dll` should have a size more
+than 500kb.
+
+Put the file in `~/.wine/drive_c/windows/syswow64/` so wine can find it.
+
+You can now tell wine to use the native `usp10.dll`:
+
+  - `export WINEDLLOVERRIDES="usp10=n"`
+  - `wine build-win/util/hb-shape.exe perf/fonts/Roboto-Regular.ttf Test --shaper=uniscribe`
+
+12. DirectWrite and new Uniscribe: You can use the same method to test the
+DirectWrite shaper against the native DirectWrite DLL. Try with a 64bit build
+this time.
+
+Bring `TextShaping.dll`, `DWrite.dll`, and `usp10.dll` from your 64bit Windows
+installation (`C:\Windows\System32`) to `~/.wine/drive_c/windows/system32/`.
+
+You want the ones from Windows 10 or later. You might have some luck downloading
+them from the internet, but be careful with the source. I had success with the
+DLLs from [https://dllme.com](dllme.com), but I cannot vouch for the site.
+
+You can now tell wine to use the native DirectWrite:
+
+  - `export WINEDLLOVERRIDES="textshaping,dwrite,usp10=n"`
+  - `wine build-win/util/hb-shape.exe perf/fonts/Roboto-Regular.ttf Test --shaper=directwrite`
+
+If all works well, you should be able to rerun the tests and see all pass this time.
+
+13. For some old instructions on how to test HarfBuzz's native Indic shaper against
+Uniscribe, see: https://github.com/harfbuzz/harfbuzz/issues/3671
+
+14. That's it! If you made it this far, you are now able to develop and test
+HarfBuzz on Windows, from Linux or macOS. Enjoy!

RELEASING.md

@@ -3,21 +3,21 @@
 - [ ] Open gitk and review changes since last release.
 
 	- [ ] Print all public API changes:
-        `git diff $(git describe | sed 's/-.*//').. src/*.h`
+          `git diff $(git describe | sed 's/-.*//').. src/*.h`
 
     - [ ]  Document them in NEWS.
-        All API and API semantic changes should be clearly marked as API additions, API changes, or API deletions.
+           All API and API semantic changes should be clearly marked as API additions, API changes, or API deletions.
 
     - [ ] Document deprecations.
-        Ensure all new API / deprecations are in listed correctly in docs/harfbuzz-sections.txt.
-        If release added new API, add entry for new API index at the end of docs/harfbuzz-docs.xml.
+          Ensure all new API / deprecations are listed correctly in docs/harfbuzz-sections.txt.
+          If release added new API, add entry for new API index at the end of docs/harfbuzz-docs.xml.
 
-     If there's a backward-incompatible API change (including deletions for API used anywhere), that's a release blocker.
-     Do NOT release.
+      If there's a backward-incompatible API change (including deletions for API used anywhere), that's a release blocker.
+      Do NOT release.
 
 - [ ] Based on severity of changes, decide whether it's a minor or micro release number bump.
 
-- [ ] Search for 'XSince: REPLACEME' on the repository and replace it with the chosen version for the release, e.g. 'Since: 1.4.7'.
+- [ ] Search for 'REPLACEME' on the repository and replace it with the chosen version for the release, e.g. 'Since: 1.4.7'.
 
 - [ ] Make sure you have correct date and new version at the top of NEWS file.
 
@@ -26,12 +26,16 @@
 - [ ] Do a `meson test -Cbuild` so it both checks the tests and updates hb-version.h (use `git diff` to see if is really updated).
 
 - [ ] Commit NEWS, meson.build, and src/hb-version.h, as well as any REPLACEME changes you made.
-        The commit message is simply the release number, e. g. "1.4.7"
+      The commit message is simply the release number, e. g. "1.4.7"
 
 - [ ] Do a `meson dist -Cbuild` that runs the tests against the latest committed changes.
-   If doesn't pass, something fishy is going on, reset the repo and start over.
+      If it does not pass, something fishy is going on, reset the repo and start over.
 
 - [ ] Tag the release and sign it: e.g. `git tag -s 1.4.7 -m 1.4.7`.
 	  Enter your GPG password.
 
 - [ ] Push the commit and tag out: `git push --follow-tags`.
+
+- [ ] There should be a GitHub release automatically created.
+      When it does, go to that release page and add description.
+      The description should be the NEWS file additions.

docs/harfbuzz-docs.xml

@@ -90,15 +90,16 @@
 
       <chapter id="integration-api">
         <title>Integration API</title>
+        <xi:include href="xml/hb-cairo.xml"/>
         <xi:include href="xml/hb-coretext.xml"/>
+        <xi:include href="xml/hb-directwrite.xml"/>
         <xi:include href="xml/hb-ft.xml"/>
+        <xi:include href="xml/hb-fontations.xml"/>
+        <xi:include href="xml/hb-gdi.xml"/>
         <xi:include href="xml/hb-glib.xml"/>
         <xi:include href="xml/hb-graphite2.xml"/>
         <xi:include href="xml/hb-icu.xml"/>
         <xi:include href="xml/hb-uniscribe.xml"/>
-        <xi:include href="xml/hb-gdi.xml"/>
-        <xi:include href="xml/hb-directwrite.xml"/>
-        <xi:include href="xml/hb-cairo.xml"/>
       </chapter>
 
       <chapter id="style-api">
@@ -120,6 +121,11 @@
       <index id="api-index-full"><title>API Index</title><xi:include href="xml/api-index-full.xml"><xi:fallback /></xi:include></index>
       <index id="deprecated-api-index"><title>Index of deprecated API</title><xi:include href="xml/api-index-deprecated.xml"><xi:fallback /></xi:include></index>
 
+      <index id="api-index-11-0-0"><title>Index of new symbols in 11.0.0</title><xi:include href="xml/api-index-11.0.0.xml"><xi:fallback /></xi:include></index>
+      <index id="api-index-10-4-0"><title>Index of new symbols in 10.4.0</title><xi:include href="xml/api-index-10.4.0.xml"><xi:fallback /></xi:include></index>
+      <index id="api-index-10-3-0"><title>Index of new symbols in 10.3.0</title><xi:include href="xml/api-index-10.3.0.xml"><xi:fallback /></xi:include></index>
+      <index id="api-index-10-2-0"><title>Index of new symbols in 10.2.0</title><xi:include href="xml/api-index-10.2.0.xml"><xi:fallback /></xi:include></index>
+      <index id="api-index-10-1-0"><title>Index of new symbols in 10.1.0</title><xi:include href="xml/api-index-10.1.0.xml"><xi:fallback /></xi:include></index>
       <index id="api-index-10-0-0"><title>Index of new symbols in 10.0.0</title><xi:include href="xml/api-index-10.0.0.xml"><xi:fallback /></xi:include></index>
       <index id="api-index-8-5-0"><title>Index of new symbols in 8.5.0</title><xi:include href="xml/api-index-8.5.0.xml"><xi:fallback /></xi:include></index>
       <index id="api-index-8-4-0"><title>Index of new symbols in 8.4.0</title><xi:include href="xml/api-index-8.4.0.xml"><xi:fallback /></xi:include></index>

docs/harfbuzz-sections.txt

@@ -114,6 +114,9 @@ hb_glyph_position_t
 hb_buffer_content_type_t
 hb_buffer_flags_t
 hb_buffer_cluster_level_t
+HB_BUFFER_CLUSTER_LEVEL_IS_CHARACTERS
+HB_BUFFER_CLUSTER_LEVEL_IS_GRAPHEMES
+HB_BUFFER_CLUSTER_LEVEL_IS_MONOTONE
 hb_segment_properties_t
 hb_buffer_serialize_format_t
 hb_buffer_serialize_flags_t
@@ -181,6 +184,10 @@ uint8_t
 HB_EXTERN
 HB_DEPRECATED
 HB_DEPRECATED_FOR
+hb_malloc
+hb_calloc
+hb_realloc
+hb_free
 <SUBSECTION Private>
 HB_H_IN
 HB_OT_H_IN
@@ -285,6 +292,8 @@ hb_paint_custom_palette_color_func_t
 hb_paint_funcs_set_custom_palette_color_func
 
 hb_paint_push_transform
+hb_paint_push_font_transform
+hb_paint_push_inverse_font_transform
 hb_paint_pop_transform
 hb_paint_color_glyph
 hb_paint_push_clip_glyph
@@ -332,6 +341,10 @@ hb_font_funcs_set_glyph_shape_func
 hb_font_get_glyph_v_kerning
 hb_font_get_glyph_v_kerning_func_t
 HB_AAT_LAYOUT_FEATURE_TYPE_CURISVE_CONNECTION
+hb_directwrite_face_get_font_face
+hb_directwrite_font_get_dw_font
+hb_ft_font_get_face
+hb_graphite2_font_get_gr_font
 </SECTION>
 
 <SECTION>
@@ -340,15 +353,23 @@ HB_CORETEXT_TAG_KERX
 HB_CORETEXT_TAG_MORT
 HB_CORETEXT_TAG_MORX
 hb_coretext_face_create
+hb_coretext_face_create_from_file_or_fail
+hb_coretext_face_create_from_blob_or_fail
 hb_coretext_font_create
 hb_coretext_face_get_cg_font
 hb_coretext_font_get_ct_font
+hb_coretext_font_set_funcs
 </SECTION>
 
 <SECTION>
 <FILE>hb-directwrite</FILE>
 hb_directwrite_face_create
-hb_directwrite_face_get_font_face
+hb_directwrite_face_create_from_file_or_fail
+hb_directwrite_face_create_from_blob_or_fail
+hb_directwrite_face_get_dw_font_face
+hb_directwrite_font_create
+hb_directwrite_font_get_dw_font_face
+hb_directwrite_font_set_funcs
 </SECTION>
 
 <SECTION>
@@ -356,6 +377,11 @@ hb_directwrite_face_get_font_face
 hb_face_count
 hb_face_t
 hb_face_create
+hb_face_create_or_fail
+hb_face_create_or_fail_using
+hb_face_create_from_file_or_fail
+hb_face_create_from_file_or_fail_using
+hb_face_list_loaders
 hb_reference_table_func_t
 hb_face_create_for_tables
 hb_face_get_empty
@@ -449,6 +475,8 @@ hb_font_get_serial
 hb_font_changed
 hb_font_set_funcs
 hb_font_set_funcs_data
+hb_font_set_funcs_using
+hb_font_list_funcs
 hb_font_subtract_glyph_origin_for_direction
 hb_font_funcs_create
 hb_font_funcs_get_empty
@@ -508,15 +536,23 @@ hb_font_extents_t
 hb_glyph_extents_t
 </SECTION>
 
+<SECTION>
+<FILE>hb-fontations</FILE>
+hb_fontations_font_set_funcs
+</SECTION>
+
+
 <SECTION>
 <FILE>hb-ft</FILE>
 hb_ft_face_create
 hb_ft_face_create_cached
 hb_ft_face_create_referenced
+hb_ft_face_create_from_file_or_fail
+hb_ft_face_create_from_blob_or_fail
 hb_ft_font_create
 hb_ft_font_create_referenced
 hb_ft_font_changed
-hb_ft_font_get_face
+hb_ft_font_get_ft_face
 hb_ft_font_lock_face
 hb_ft_font_unlock_face
 hb_ft_font_set_load_flags
@@ -542,7 +578,6 @@ hb_glib_blob_create
 <FILE>hb-graphite2</FILE>
 HB_GRAPHITE2_TAG_SILF
 hb_graphite2_face_get_gr_face
-hb_graphite2_font_get_gr_font
 </SECTION>
 
 <SECTION>
@@ -669,6 +704,7 @@ hb_ot_layout_table_get_script_tags
 hb_ot_layout_table_get_lookup_count
 hb_ot_layout_table_select_script
 hb_ot_shape_plan_collect_lookups
+hb_ot_shape_plan_get_feature_tags
 hb_ot_layout_language_get_required_feature_index
 HB_OT_MAX_TAGS_PER_LANGUAGE
 HB_OT_MAX_TAGS_PER_SCRIPT
@@ -796,8 +832,10 @@ hb_set_t
 <FILE>hb-shape</FILE>
 hb_shape
 hb_shape_full
-hb_shape_justify
 hb_shape_list_shapers
+<SUBSECTION Private>
+hb_shape_justify
+</SUBSECTION>
 </SECTION>
 
 <SECTION>
@@ -895,6 +933,8 @@ hb_subset_input_pin_axis_location
 hb_subset_input_pin_axis_to_default
 hb_subset_input_get_axis_range
 hb_subset_input_set_axis_range
+hb_subset_axis_range_from_string
+hb_subset_axis_range_to_string
 hb_subset_or_fail
 hb_subset_plan_create_or_fail
 hb_subset_plan_reference
@@ -910,11 +950,15 @@ hb_subset_flags_t
 hb_subset_input_t
 hb_subset_sets_t
 hb_subset_plan_t
+hb_subset_serialize_link_t
+hb_subset_serialize_object_t
+hb_subset_serialize_or_fail
 <SUBSECTION Private>
-hb_link_t
-hb_object_t
-hb_subset_repack_or_fail
 hb_subset_input_override_name_table
+hb_subset_cff_get_charstring_data
+hb_subset_cff_get_charstrings_index
+hb_subset_cff2_get_charstring_data
+hb_subset_cff2_get_charstrings_index
 </SECTION>
 
 <SECTION>

docs/usermanual-integration.xml

@@ -518,18 +518,6 @@
       <type>hb_font_t</type> font object. Core Text uses this value to
       implement optical scaling. 
     </para>
-    <para>
-      When integrating your client code with Core Text, it is
-      important to recognize that Core Text <literal>points</literal>
-      are not typographic points (standardized at 72 per inch) as the
-      term is used elsewhere in OpenType. Instead, Core Text points
-      are CSS points, which are standardized at 96 per inch.
-    </para>
-    <para>
-      HarfBuzz's font functions take this distinction into account,
-      but it can be an easy detail to miss in cross-platform
-      code. 
-    </para>
     <para>
       As a final note, you may notice a reference to an optional
       <literal>coretext</literal> shaper back-end in the <xref

meson.build

@@ -1,11 +1,12 @@
-project('harfbuzz', 'c', 'cpp',
-  meson_version: '>= 0.55.0',
-  version: '10.0.1',
+project('harfbuzz', ['c', 'cpp'],
+  meson_version: '>= 0.60.0',
+  version: '11.1.0',
   default_options: [
     'cpp_eh=none',          # Just to support msvc, we are passing -fno-exceptions also anyway
     # 'cpp_rtti=false',     # Do NOT enable, wraps inherit it and ICU needs RTTI
     'cpp_std=c++11',
     'wrap_mode=nofallback', # Use --wrap-mode=default to revert, https://github.com/harfbuzz/harfbuzz/pull/2548
+    'buildtype=debugoptimized',
   ],
 )
 
@@ -31,11 +32,16 @@ pkgmod = import('pkgconfig')
 cpp = meson.get_compiler('cpp')
 null_dep = dependency('', required: false)
 
+
+# Includes Microsoft Clang compiler with GNU arguments, see
+# https://github.com/harfbuzz/harfbuzz/pull/4394
+cpp_is_microsoft_compiler = host_machine.system() == 'windows' and cpp.get_define('_MSC_FULL_VER') != ''
+
 # Only perform these checks if cpp_std is c++11 as setting -std directly
 # produces a warning from meson.
 if get_option('cpp_std') == 'c++11'
   # Enforce C++14 requirement for MSVC STL
-  if cpp.get_id() == 'clang' and cpp.get_define('_MSC_FULL_VER') != ''
+  if cpp.get_id() == 'clang' and cpp_is_microsoft_compiler
     add_project_arguments('-std=c++14', language: 'cpp')
   elif cpp.get_id() == 'clang-cl'
     # Clang-cl produces a warning when using -std=c++14, but not when using /std:c++14
@@ -102,44 +108,36 @@ check_funcs = [
 
 m_dep = cpp.find_library('m', required: false)
 
-if meson.version().version_compare('>=0.60.0')
+# Painful hack to handle multiple dependencies but also respect options
+if get_option('freetype').disabled()
+  freetype_dep = dependency('', required: false)
+else
   # Sadly, FreeType's versioning schemes are different between pkg-config and CMake
-  # pkg-config: freetype2, cmake: Freetype
+
+  # Try pkg-config name
   freetype_dep = dependency('freetype2',
                             version: freetype_min_version,
                             method: 'pkg-config',
                             required: false,
                             allow_fallback: false)
   if not freetype_dep.found()
-    freetype_dep = dependency('FreeType',
+    # Try cmake name
+    freetype_dep = dependency('Freetype',
                               version: freetype_min_version_actual,
                               method: 'cmake',
-                              required: get_option('freetype'),
-                              default_options: ['harfbuzz=disabled'],
-                              allow_fallback: true)
-  endif
-else
-  # painful hack to handle multiple dependencies but also respect options
-  freetype_opt = get_option('freetype')
-  # we want to handle enabled manually after fallbacks, but also handle disabled normally
-  if freetype_opt.enabled()
-    freetype_opt = false
-  endif
-  # try pkg-config name
-  freetype_dep = dependency('freetype2', version: freetype_min_version, method: 'pkg-config', required: freetype_opt)
-  # when disabled, leave it not-found
-  if not freetype_dep.found() and not get_option('freetype').disabled()
-    # Try cmake name
-    freetype_dep = dependency('Freetype', version: freetype_min_version_actual, method: 'cmake', required: false)
-    # Subproject fallback, `allow_fallback: true` means the fallback will be
-    # tried even if the freetype option is set to `auto`.
+                              required: false,
+                              allow_fallback: false)
+    # Subproject fallback
     if not freetype_dep.found()
-      freetype_dep = dependency('freetype2',
-                                version: freetype_min_version,
-                                method: 'pkg-config',
+      freetype_proj = subproject('freetype2',
+                                version: freetype_min_version_actual,
                                 required: get_option('freetype'),
-                                default_options: ['harfbuzz=disabled'],
-                                allow_fallback: true)
+                                default_options: ['harfbuzz=disabled'])
+      if freetype_proj.found()
+        freetype_dep = freetype_proj.get_variable('freetype_dep')
+      else
+        freetype_dep = dependency('', required: false)
+      endif
     endif
   endif
 endif
@@ -152,38 +150,12 @@ wasm_dep = cpp.find_library('iwasm', required: get_option('wasm'))
 # How to check whether iwasm was built, and hence requires, LLVM?
 #llvm_dep = cpp.find_library('LLVM-15', required: get_option('wasm'))
 
-if meson.version().version_compare('>=0.60.0')
-  # pkg-config: icu-uc, cmake: ICU but with components
-  icu_dep = dependency('icu-uc', 'ICU',
-                            version: icu_min_version,
-                            components: 'uc',
-                            required: get_option('icu'),
-                            allow_fallback: true)
-else
-  # painful hack to handle multiple dependencies but also respect options
-  icu_opt = get_option('icu')
-  # we want to handle enabled manually after fallbacks, but also handle disabled normally
-  if icu_opt.enabled()
-    icu_opt = false
-  endif
-  # try pkg-config name
-  icu_dep = dependency('icu-uc', version: icu_min_version, method: 'pkg-config', required: icu_opt)
-  # when disabled, leave it not-found
-  if not icu_dep.found() and not get_option('icu').disabled()
-    # Try cmake name
-    icu_dep = dependency('ICU', version: icu_min_version, method: 'cmake', components: 'uc', required: false)
-    # Try again with subproject fallback. `allow_fallback: true` means the
-    # fallback will be tried even if the icu option is set to `auto`, but
-    # we cannot pass this option until Meson 0.59.0, because no wrap file
-    # is checked into git.
-    if not icu_dep.found()
-      icu_dep = dependency('icu-uc',
-                           version: icu_min_version,
-                           method: 'pkg-config',
-                           required: get_option('icu'))
-    endif
-  endif
-endif
+# pkg-config: icu-uc, cmake: ICU but with components
+icu_dep = dependency('icu-uc', 'ICU',
+                          version: icu_min_version,
+                          components: 'uc',
+                          required: get_option('icu'),
+                          allow_fallback: true)
 
 if icu_dep.found() and icu_dep.version().version_compare('>=75.1') and (get_option('cpp_std') == 'c++11' or get_option('cpp_std') == 'c++14')
   cpp17_arg = cpp.get_argument_syntax() == 'msvc' ? '/std:c++17' : '-std=c++17'
@@ -227,16 +199,18 @@ endif
 
 chafa_dep = dependency('chafa', version: chafa_min_version, required: get_option('chafa'))
 
+fontations_dep_found = false
+if get_option('fontations').enabled()
+  add_languages(['rust'], native: false, required : true)
+  fontations_dep_found = true
+endif
+
 conf = configuration_data()
 incconfig = include_directories('.')
 
 add_project_arguments('-DHAVE_CONFIG_H', language: ['c', 'cpp'])
 
-warn_cflags = [
-  '-Wno-non-virtual-dtor',
-]
-
-cpp_args = cpp.get_supported_arguments(warn_cflags)
+cpp_args = []
 
 if glib_dep.found()
   conf.set('HAVE_GLIB', 1)
@@ -272,6 +246,10 @@ if chafa_dep.found()
   conf.set('HAVE_CHAFA', 1)
 endif
 
+if fontations_dep_found
+  conf.set('HAVE_FONTATIONS', 1)
+endif
+
 if wasm_dep.found()
   conf.set('HAVE_WASM', 1)
   conf.set('HB_WASM_MODULE_DIR', '"'+get_option('prefix')+'/'+get_option('libdir')+'/harfbuzz/wasm"')
@@ -315,13 +293,13 @@ endif
 gdi_uniscribe_deps = []
 # GDI (Uniscribe) (Windows)
 if host_machine.system() == 'windows' and not get_option('gdi').disabled()
-  if (get_option('directwrite').enabled() and
+  if (get_option('gdi').enabled() and
       not (cpp.has_header('usp10.h') and cpp.has_header('windows.h')))
     error('GDI/Uniscribe was enabled explicitly, but required headers are missing.')
   endif
 
   gdi_deps_found = true
-  foreach usplib : ['usp10', 'gdi32', 'rpcrt4']
+  foreach usplib : ['usp10', 'gdi32', 'rpcrt4', 'user32']
     dep = cpp.find_library(usplib, required: get_option('gdi'))
     gdi_deps_found = gdi_deps_found and dep.found()
     gdi_uniscribe_deps += dep
@@ -333,13 +311,16 @@ if host_machine.system() == 'windows' and not get_option('gdi').disabled()
   endif
 endif
 
+directwrite_dep = []
 # DirectWrite (Windows)
 if host_machine.system() == 'windows' and not get_option('directwrite').disabled()
-  if get_option('directwrite').enabled() and not cpp.has_header('dwrite_1.h')
+  if get_option('directwrite').enabled() and not cpp.has_header('dwrite_3.h')
     error('DirectWrite was enabled explicitly, but required header is missing.')
   endif
-
-  conf.set('HAVE_DIRECTWRITE', 1)
+  directwrite_dep = cpp.find_library('dwrite', required: get_option('directwrite'))
+  if directwrite_dep.found()
+    conf.set('HAVE_DIRECTWRITE', 1)
+  endif
 endif
 
 # CoreText (macOS)
@@ -464,6 +445,11 @@ configure_file(output: 'config.h', configuration: conf)
 alias_target('lib', libharfbuzz)
 alias_target('libs', libharfbuzz, libharfbuzz_subset)
 
+# Re glib, see https://github.com/harfbuzz/harfbuzz/issues/4153#issuecomment-2646347531
+add_test_setup('default',
+                exclude_suites: ['google-benchmark'],
+                is_default: glib_dep.type_name() != 'internal' and not meson.is_subproject())
+
 build_summary = {
   'Directories':
     {'prefix': get_option('prefix'),

meson_options.txt

@@ -15,10 +15,12 @@ option('graphite2', type: 'feature', value: 'disabled',
   description: 'Enable Graphite2 complementary shaper')
 option('freetype', type: 'feature', value: 'auto',
   description: 'Enable freetype interop helpers')
+option('fontations', type: 'feature', value: 'disabled',
+  description: 'Enabled fontations font functions')
 option('gdi', type: 'feature', value: 'disabled',
   description: 'Enable GDI helpers and Uniscribe shaper backend (Windows only)')
 option('directwrite', type: 'feature', value: 'disabled',
-  description: 'Enable DirectWrite shaper backend on Windows (experimental)')
+  description: 'Enable DirectWrite shaper backend on Windows')
 option('coretext', type: 'feature', value: 'disabled',
   description: 'Enable CoreText shaper backend on macOS')
 option('wasm', type: 'feature', value: 'disabled',

perf/README.md

@@ -4,17 +4,21 @@ Benchmarks are implemented using [Google Benchmark](https://github.com/google/be
 
 To build the benchmarks in this directory you need to set the benchmark
 option while configuring the build with meson:
-
-```
-meson build -Dbenchmark=enabled --buildtype=release
-```
-or:
 ```
 meson build -Dbenchmark=enabled --buildtype=debugoptimized
 ```
 
+The default build type is `debugoptimized`, which is good enough for
+benchmarking, but you can also get the fastest mode with `release`
+build type:
+```
+meson build -Dbenchmark=enabled --buildtype=release
+```
 
-Then build a specific benchmark binaries with ninja:
+You should, of course, enable features you want to benchmark, like
+`-Dfreetype`, `-Dfontations`, `-Dcoretext`, etc.
+
+Then build a specific benchmark binaries with ninja, eg.:
 ```
 ninja -Cbuild perf/benchmark-set
 ```
@@ -33,22 +37,47 @@ It's possible to filter the benchmarks being run and customize the output
 via flags to the benchmark binary. See the
 [Google Benchmark User Guide](https://github.com/google/benchmark/blob/main/docs/user_guide.md#user-guide) for more details.
 
+The most useful benchmark is `benchmark-font`. You can provide custom fonts to it too.
+For example, to run only the "paint" benchmarks, against a given font, you can do:
+```
+./build/perf/benchmark-font NotoColorEmoji-Regular.ttf --benchmark_filter="paint"
+```
+
+Some useful options are: `--benchmark_repetitions=5` to run the benchmark 5 times,
+`--benchmark_min_time=.1s` to run the benchmark for at least .1 seconds (defaults
+to .5s), and `--benchmark_filter=...` to filter the benchmarks by regular expression.
+
+To compare before/after benchmarks, you need to save the benchmark results in files
+for both runs. Use `--benchmark_out=results.json` to output the results in JSON format.
+Then you can use:
+```
+./subprojects/benchmark-1.8.4/tools/compare.py benchmarks before.json after.json
+```
+Substitute your version of benchmark instead of 1.8.4.
+
 # Profiling
 
-Configure the build to include debug information for profiling:
-
+If you like to disable optimizations and enable frame pointers for better profiling output,
+you can do so with the following meson command:
 ```
 CXXFLAGS="-fno-omit-frame-pointer" meson --reconfigure build -Dbenchmark=enabled --buildtype=debug
 ninja -Cbuild
 ```
+However, this will slow down the benchmarks significantly and might give you inaccurate
+information as to where to optimize. It's better to profile the `debugoptimized` build (the default).
 
 Then run the benchmark with perf:
-
 ```
 perf record -g build/perf/benchmark-subset --benchmark_filter="BM_subset_codepoints/subset_notocjk/100000" --benchmark_repetitions=5
 ```
-You probably want to filter to a specific benchmark of interest and set the number of repititions high enough to get a good sampling of profile data.
+You probably want to filter to a specific benchmark of interest and set the number of
+repititions high enough to get a good sampling of profile data.
 
 Finally view the profile with:
 
+```
 perf report
+```
+
+Another useful `perf` tool is the `perf stat` command, which can give you a quick overview
+of the performance of a benchmark, as well as stalled cycles, cache misses, and mispredicted branches.

perf/benchmark-font.cc

@@ -1,17 +1,4 @@
-#include "benchmark/benchmark.h"
-#include <cassert>
-#include <cstring>
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "hb.h"
-#include "hb-ot.h"
-#ifdef HAVE_FREETYPE
-#include "hb-ft.h"
-#endif
-
+#include "hb-benchmark.hh"
 
 #define SUBSET_FONT_BASE_PATH "test/subset/data/fonts/"
 
@@ -34,8 +21,6 @@ struct test_input_t
 static test_input_t *tests = default_tests;
 static unsigned num_tests = sizeof (default_tests) / sizeof (default_tests[0]);
 
-enum backend_t { HARFBUZZ, FREETYPE };
-
 enum operation_t
 {
   nominal_glyphs,
@@ -94,16 +79,15 @@ _draw_funcs_create (void)
 }
 
 static void BM_Font (benchmark::State &state,
-		     bool is_var, backend_t backend, operation_t operation,
+		     bool is_var, const char * backend,
+		     operation_t operation,
 		     const test_input_t &test_input)
 {
   hb_font_t *font;
   unsigned num_glyphs;
   {
-    hb_blob_t *blob = hb_blob_create_from_file_or_fail (test_input.font_path);
-    assert (blob);
-    hb_face_t *face = hb_face_create (blob, 0);
-    hb_blob_destroy (blob);
+    hb_face_t *face = hb_benchmark_face_create_from_file_or_fail (test_input.font_path, 0);
+    assert (face);
     num_glyphs = hb_face_get_glyph_count (face);
     font = hb_font_create (face);
     hb_face_destroy (face);
@@ -115,17 +99,12 @@ static void BM_Font (benchmark::State &state,
     hb_font_set_variations (font, &wght, 1);
   }
 
-  switch (backend)
+  bool ret = hb_font_set_funcs_using (font, backend);
+  if (!ret)
   {
-    case HARFBUZZ:
-      hb_ot_font_set_funcs (font);
-      break;
-
-    case FREETYPE:
-#ifdef HAVE_FREETYPE
-      hb_ft_font_set_funcs (font);
-#endif
-      break;
+    state.SkipWithError("Backend failed to initialize for font.");
+    hb_font_destroy (font);
+    return;
   }
 
   switch (operation)
@@ -208,24 +187,17 @@ static void BM_Font (benchmark::State &state,
     {
       for (auto _ : state)
       {
-	hb_blob_t *blob = hb_blob_create_from_file_or_fail (test_input.font_path);
-	assert (blob);
-	hb_face_t *face = hb_face_create (blob, 0);
-	hb_blob_destroy (blob);
+	hb_face_t *face = hb_benchmark_face_create_from_file_or_fail (test_input.font_path, 0);
+	assert (face);
 	hb_font_t *font = hb_font_create (face);
 	hb_face_destroy (face);
 
-	switch (backend)
+	bool ret = hb_font_set_funcs_using (font, backend);
+	if (!ret)
 	{
-	  case HARFBUZZ:
-	    hb_ot_font_set_funcs (font);
-	    break;
-
-	  case FREETYPE:
-#ifdef HAVE_FREETYPE
-	    hb_ft_font_set_funcs (font);
-#endif
-	    break;
+	  state.SkipWithError("Backend failed to initialize for font.");
+	  hb_font_destroy (font);
+	  return;
 	}
 
 	hb_buffer_t *buffer = hb_buffer_create ();
@@ -245,8 +217,7 @@ static void BM_Font (benchmark::State &state,
   hb_font_destroy (font);
 }
 
-static void test_backend (backend_t backend,
-			  const char *backend_name,
+static void test_backend (const char *backend,
 			  bool variable,
 			  operation_t op,
 			  const char *op_name,
@@ -260,7 +231,7 @@ static void test_backend (backend_t backend,
   strcat (name, p ? p + 1 : test_input.font_path);
   strcat (name, variable ? "/var" : "");
   strcat (name, "/");
-  strcat (name, backend_name);
+  strcat (name, backend);
 
   benchmark::RegisterBenchmark (name, BM_Font, variable, backend, op, test_input)
    ->Unit(time_unit);
@@ -270,6 +241,7 @@ static void test_operation (operation_t op,
 			    const char *op_name,
 			    benchmark::TimeUnit time_unit)
 {
+  const char **supported_backends = hb_font_list_funcs ();
   for (unsigned i = 0; i < num_tests; i++)
   {
     auto& test_input = tests[i];
@@ -277,10 +249,8 @@ static void test_operation (operation_t op,
     {
       bool is_var = (bool) variable;
 
-      test_backend (HARFBUZZ, "hb", is_var, op, op_name, time_unit, test_input);
-#ifdef HAVE_FREETYPE
-      test_backend (FREETYPE, "ft", is_var, op, op_name, time_unit, test_input);
-#endif
+      for (const char **backend = supported_backends; *backend; backend++)
+	test_backend (*backend, is_var, op, op_name, time_unit, test_input);
     }
   }
 }
@@ -305,7 +275,7 @@ int main(int argc, char** argv)
   TEST_OPERATION (nominal_glyphs, benchmark::kMicrosecond);
   TEST_OPERATION (glyph_h_advances, benchmark::kMicrosecond);
   TEST_OPERATION (glyph_extents, benchmark::kMicrosecond);
-  TEST_OPERATION (draw_glyph, benchmark::kMicrosecond);
+  TEST_OPERATION (draw_glyph, benchmark::kMillisecond);
   TEST_OPERATION (paint_glyph, benchmark::kMillisecond);
   TEST_OPERATION (load_face_and_shape, benchmark::kMicrosecond);
 

perf/benchmark-map.cc

@@ -1,11 +1,4 @@
-/*
- * Benchmarks for hb_map_t operations.
- */
-#include "benchmark/benchmark.h"
-
-#include <cassert>
-#include <cstdlib>
-#include "hb.h"
+#include "hb-benchmark.hh"
 
 void RandomMap(unsigned size, hb_map_t* out, hb_set_t* key_sample) {
   hb_map_clear(out);

perf/benchmark-ot.cc

@@ -1,9 +1,4 @@
-/*
- * Benchmarks for hb_set_t operations.
- */
-#include "benchmark/benchmark.h"
-
-#include "hb-ot.h"
+#include "hb-benchmark.hh"
 
 static void BM_hb_ot_tags_from_script_and_language (benchmark::State& state,
 						    hb_script_t script,

perf/benchmark-set.cc

@@ -1,11 +1,4 @@
-/*
- * Benchmarks for hb_set_t operations.
- */
-#include "benchmark/benchmark.h"
-
-#include <cassert>
-#include <cstdlib>
-#include "hb.h"
+#include "hb-benchmark.hh"
 
 void RandomSet(unsigned size, unsigned max_value, hb_set_t* out) {
   hb_set_clear(out);

perf/benchmark-shape.cc

@@ -1,17 +1,4 @@
-#include "benchmark/benchmark.h"
-#include <cstring>
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <cassert>
-
-#include "hb.h"
-#include "hb-ot.h"
-#ifdef HAVE_FREETYPE
-#include "hb-ft.h"
-#endif
+#include "hb-benchmark.hh"
 
 #define SUBSET_FONT_BASE_PATH "test/subset/data/fonts/"
 
@@ -19,76 +6,52 @@ struct test_input_t
 {
   const char *font_path;
   const char *text_path;
-  bool is_variable;
 } default_tests[] =
 {
 
   {"perf/fonts/NotoNastaliqUrdu-Regular.ttf",
-   "perf/texts/fa-thelittleprince.txt",
-   false},
+   "perf/texts/fa-thelittleprince.txt"},
 
   {"perf/fonts/NotoNastaliqUrdu-Regular.ttf",
-   "perf/texts/fa-words.txt",
-   false},
+   "perf/texts/fa-words.txt"},
 
   {"perf/fonts/Amiri-Regular.ttf",
-   "perf/texts/fa-thelittleprince.txt",
-   false},
+   "perf/texts/fa-thelittleprince.txt"},
 
   {SUBSET_FONT_BASE_PATH "NotoSansDevanagari-Regular.ttf",
-   "perf/texts/hi-words.txt",
-   false},
+   "perf/texts/hi-words.txt"},
 
   {"perf/fonts/Roboto-Regular.ttf",
-   "perf/texts/en-thelittleprince.txt",
-   false},
+   "perf/texts/en-thelittleprince.txt"},
 
   {"perf/fonts/Roboto-Regular.ttf",
-   "perf/texts/en-words.txt",
-   false},
+   "perf/texts/en-words.txt"},
 
   {SUBSET_FONT_BASE_PATH "SourceSerifVariable-Roman.ttf",
-   "perf/texts/en-thelittleprince.txt",
-   true},
+   "perf/texts/react-dom.txt"},
 };
 
 static test_input_t *tests = default_tests;
 static unsigned num_tests = sizeof (default_tests) / sizeof (default_tests[0]);
-
-enum backend_t { HARFBUZZ, FREETYPE };
+const char *variation = nullptr;
 
 static void BM_Shape (benchmark::State &state,
-		      bool is_var,
-		      backend_t backend,
+		      const char *shaper,
 		      const test_input_t &input)
 {
   hb_font_t *font;
   {
-    hb_blob_t *blob = hb_blob_create_from_file_or_fail (input.font_path);
-    assert (blob);
-    hb_face_t *face = hb_face_create (blob, 0);
-    hb_blob_destroy (blob);
+    hb_face_t *face = hb_benchmark_face_create_from_file_or_fail (input.font_path, 0);
+    assert (face);
     font = hb_font_create (face);
     hb_face_destroy (face);
   }
 
-  if (is_var)
+  if (variation)
   {
-    hb_variation_t wght = {HB_TAG ('w','g','h','t'), 500};
-    hb_font_set_variations (font, &wght, 1);
-  }
-
-  switch (backend)
-  {
-    case HARFBUZZ:
-      hb_ot_font_set_funcs (font);
-      break;
-
-    case FREETYPE:
-#ifdef HAVE_FREETYPE
-      hb_ft_font_set_funcs (font);
-#endif
-      break;
+    hb_variation_t var;
+    hb_variation_from_string (variation, -1, &var);
+    hb_font_set_variations (font, &var, 1);
   }
 
   hb_blob_t *text_blob = hb_blob_create_from_file_or_fail (input.text_path);
@@ -108,7 +71,8 @@ static void BM_Shape (benchmark::State &state,
       hb_buffer_clear_contents (buf);
       hb_buffer_add_utf8 (buf, text, text_length, 0, end - text);
       hb_buffer_guess_segment_properties (buf);
-      hb_shape (font, buf, nullptr, 0);
+      const char *shaper_list[] = {shaper, nullptr};
+      hb_shape_full (font, buf, nullptr, 0, shaper_list);
 
       unsigned skip = end - text + 1;
       text_length -= skip;
@@ -121,10 +85,8 @@ static void BM_Shape (benchmark::State &state,
   hb_font_destroy (font);
 }
 
-static void test_backend (backend_t backend,
-			  const char *backend_name,
-			  bool variable,
-			  const test_input_t &test_input)
+static void test_shaper (const char *shaper,
+			 const test_input_t &test_input)
 {
   char name[1024] = "BM_Shape";
   const char *p;
@@ -134,11 +96,10 @@ static void test_backend (backend_t backend,
   strcat (name, "/");
   p = strrchr (test_input.text_path, '/');
   strcat (name, p ? p + 1 : test_input.text_path);
-  strcat (name, variable ? "/var" : "");
   strcat (name, "/");
-  strcat (name, backend_name);
+  strcat (name, shaper);
 
-  benchmark::RegisterBenchmark (name, BM_Shape, variable, backend, test_input)
+  benchmark::RegisterBenchmark (name, BM_Shape, shaper, test_input)
    ->Unit(benchmark::kMillisecond);
 }
 
@@ -146,35 +107,25 @@ int main(int argc, char** argv)
 {
   benchmark::Initialize(&argc, argv);
 
+  test_input_t static_test = {};
   if (argc > 2)
   {
-    num_tests = (argc - 1) / 2;
-    tests = (test_input_t *) calloc (num_tests, sizeof (test_input_t));
-    for (unsigned i = 0; i < num_tests; i++)
-    {
-      tests[i].is_variable = true;
-      tests[i].font_path = argv[1 + i * 2];
-      tests[i].text_path = argv[2 + i * 2];
-    }
+    static_test.font_path = argv[1];
+    static_test.text_path = argv[2];
+    tests = &static_test;
+    num_tests = 1;
   }
+  if (argc > 3)
+    variation = argv[3];
 
   for (unsigned i = 0; i < num_tests; i++)
   {
     auto& test_input = tests[i];
-    for (int variable = 0; variable < int (test_input.is_variable) + 1; variable++)
-    {
-      bool is_var = (bool) variable;
-
-      test_backend (HARFBUZZ, "hb", is_var, test_input);
-#ifdef HAVE_FREETYPE
-      test_backend (FREETYPE, "ft", is_var, test_input);
-#endif
-    }
+    const char **shapers = hb_shape_list_shapers ();
+    for (const char **shaper = shapers; *shaper; shaper++)
+      test_shaper (*shaper, test_input);
   }
 
   benchmark::RunSpecifiedBenchmarks();
   benchmark::Shutdown();
-
-  if (tests != default_tests)
-    free (tests);
 }

perf/benchmark-subset.cc

@@ -1,13 +1,4 @@
-#include "benchmark/benchmark.h"
-#include <cassert>
-#include <cstring>
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "hb-subset.h"
-
+#include "hb-benchmark.hh"
 
 enum operation_t
 {
@@ -148,10 +139,8 @@ static void BM_subset (benchmark::State &state,
 
   if (!cached_font_path || strcmp (cached_font_path, test_input.font_path))
   {
-    hb_blob_t *blob = hb_blob_create_from_file_or_fail (test_input.font_path);
-    assert (blob);
-    face = hb_face_create (blob, 0);
-    hb_blob_destroy (blob);
+    face = hb_benchmark_face_create_from_file_or_fail (test_input.font_path, 0);
+    assert (face);
 
     face = preprocess_face (face);
 

perf/hb-benchmark.hh

@@ -0,0 +1,64 @@
+/*
+ * Copyright © 2024  Google, Inc.
+ *
+ *  This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_BENCHMARK_HH
+#define HB_BENCHMARK_HH
+
+#include <hb-config.hh>
+
+#include <hb.h>
+#include <hb-subset.h>
+
+#include <hb-ot.h>
+#ifdef HAVE_FREETYPE
+#include <hb-ft.h>
+#endif
+#ifdef HAVE_FONTATIONS
+#include <hb-fontations.h>
+#endif
+#ifdef HAVE_CORETEXT
+#include <hb-coretext.h>
+#endif
+
+#include <benchmark/benchmark.h>
+
+#include <cassert>
+#include <cstdlib>
+#include <cstring>
+
+
+HB_BEGIN_DECLS
+
+static inline hb_face_t *
+hb_benchmark_face_create_from_file_or_fail (const char *font_path,
+					    unsigned face_index)
+{
+  return hb_face_create_from_file_or_fail_using (font_path, face_index, nullptr);
+}
+
+HB_END_DECLS
+
+#endif /* HB_BENCHMARK_HH */

perf/hb-draw-all.c

@@ -0,0 +1,45 @@
+#include <hb.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+
+int main (int argc, char **argv)
+{
+  if (argc < 2)
+  {
+    fprintf (stderr, "Usage: %s font-file [font-funcs] [wght]\n", argv[0]);
+    return 1;
+  }
+
+  hb_face_t *face = hb_face_create_from_file_or_fail (argv[1], 0);
+
+  if (!face)
+  {
+    fprintf (stderr, "Failed to create face\n");
+    return 1;
+  }
+
+  hb_font_t *font = hb_font_create (face);
+
+  if (argc > 2)
+    hb_font_set_funcs_using (font, argv[2]);
+
+  if (argc > 3)
+  {
+    hb_variation_t variations[] = {
+      { HB_TAG ('w', 'g', 'h', 't'), atoi (argv[3]) },
+    };
+    hb_font_set_variations (font, variations, 1);
+  }
+
+  hb_draw_funcs_t *funcs = hb_draw_funcs_create ();
+
+  unsigned glyph_count = hb_face_get_glyph_count (face);
+  for (unsigned gid = 0; gid < glyph_count; gid++)
+    hb_font_draw_glyph (font, gid, funcs, NULL);
+
+  hb_draw_funcs_destroy (funcs);
+  hb_font_destroy (font);
+  hb_face_destroy (face);
+  return 0;
+}

perf/hb-paint-all.c

@@ -0,0 +1,45 @@
+#include <hb.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+
+int main (int argc, char **argv)
+{
+  if (argc < 2)
+  {
+    fprintf (stderr, "Usage: %s font-file [font-funcs] [wght]\n", argv[0]);
+    return 1;
+  }
+
+  hb_face_t *face = hb_face_create_from_file_or_fail (argv[1], 0);
+
+  if (!face)
+  {
+    fprintf (stderr, "Failed to create face\n");
+    return 1;
+  }
+
+  hb_font_t *font = hb_font_create (face);
+
+  if (argc > 2)
+    hb_font_set_funcs_using (font, argv[2]);
+
+  if (argc > 3)
+  {
+    hb_variation_t variations[] = {
+      { HB_TAG ('w', 'g', 'h', 't'), atoi (argv[3]) },
+    };
+    hb_font_set_variations (font, variations, 1);
+  }
+
+  hb_paint_funcs_t *funcs = hb_paint_funcs_create ();
+
+  unsigned glyph_count = hb_face_get_glyph_count (face);
+  for (unsigned gid = 0; gid < glyph_count; gid++)
+    hb_font_paint_glyph (font, gid, funcs, NULL, 0, 0);
+
+  hb_paint_funcs_destroy (funcs);
+  hb_font_destroy (font);
+  hb_face_destroy (face);
+  return 0;
+}

perf/meson.build

@@ -1,62 +1,54 @@
 google_benchmark = subproject('google-benchmark')
 google_benchmark_dep = google_benchmark.get_variable('google_benchmark_dep')
 
-benchmark('benchmark-font', executable('benchmark-font', 'benchmark-font.cc',
-  dependencies: [
-    google_benchmark_dep, freetype_dep,
-  ],
-  cpp_args: [],
+benchmarks = [
+  'benchmark-font.cc',
+  'benchmark-map.cc',
+  'benchmark-ot.cc',
+  'benchmark-set.cc',
+  'benchmark-shape.cc',
+]
+
+foreach source : benchmarks
+  benchmark_name = source.split('.')[0]
+  benchmark(benchmark_name, executable(benchmark_name, source,
+    dependencies: [
+      google_benchmark_dep, freetype_dep, coretext_deps,
+    ],
+    cpp_args: [],
+    include_directories: [incconfig, incsrc],
+    link_with: [libharfbuzz],
+    install: false,
+  ), workdir: meson.current_source_dir() / '..', timeout: 100)
+endforeach
+
+benchmarks_subset = [
+  'benchmark-subset.cc',
+]
+
+foreach source : benchmarks_subset
+  benchmark_name = source.split('.')[0]
+  benchmark(benchmark_name, executable(benchmark_name, source,
+    dependencies: [
+      google_benchmark_dep, freetype_dep, coretext_deps,
+    ],
+    cpp_args: [],
+    include_directories: [incconfig, incsrc],
+    link_with: [libharfbuzz, libharfbuzz_subset],
+    install: false,
+  ), workdir: meson.current_source_dir() / '..', timeout: 100)
+endforeach
+
+hb_draw_all = executable('hb-draw-all', ['hb-draw-all.c'],
+  cpp_args: cpp_args,
   include_directories: [incconfig, incsrc],
   link_with: [libharfbuzz],
-  install: false,
-), workdir: meson.current_source_dir() / '..', timeout: 100)
+)
+meson.override_find_program('hb-draw-all', hb_draw_all)
 
-benchmark('benchmark-map', executable('benchmark-map', 'benchmark-map.cc',
-  dependencies: [
-    google_benchmark_dep,
-  ],
-  cpp_args: [],
+hb_paint_all = executable('hb-paint-all', ['hb-paint-all.c'],
+  cpp_args: cpp_args,
   include_directories: [incconfig, incsrc],
   link_with: [libharfbuzz],
-  install: false,
-), workdir: meson.current_source_dir() / '..', timeout: 100)
-
-benchmark('benchmark-ot', executable('benchmark-ot', 'benchmark-ot.cc',
-  dependencies: [
-    google_benchmark_dep,
-  ],
-  cpp_args: [],
-  include_directories: [incconfig, incsrc],
-  link_with: [libharfbuzz],
-  install: false,
-), workdir: meson.current_source_dir() / '..', timeout: 100)
-
-benchmark('benchmark-set', executable('benchmark-set', 'benchmark-set.cc',
-  dependencies: [
-    google_benchmark_dep,
-  ],
-  cpp_args: [],
-  include_directories: [incconfig, incsrc],
-  link_with: [libharfbuzz],
-  install: false,
-), workdir: meson.current_source_dir() / '..', timeout: 100)
-
-benchmark('benchmark-shape', executable('benchmark-shape', 'benchmark-shape.cc',
-  dependencies: [
-    google_benchmark_dep, freetype_dep,
-  ],
-  cpp_args: [],
-  include_directories: [incconfig, incsrc],
-  link_with: [libharfbuzz],
-  install: false,
-), workdir: meson.current_source_dir() / '..', timeout: 100)
-
-benchmark('benchmark-subset', executable('benchmark-subset', 'benchmark-subset.cc',
-  dependencies: [
-    google_benchmark_dep,
-  ],
-  cpp_args: [],
-  include_directories: [incconfig, incsrc],
-  link_with: [libharfbuzz, libharfbuzz_subset],
-  install: false,
-), workdir: meson.current_source_dir() / '..', timeout: 100)
+)
+meson.override_find_program('hb-paint-all', hb_paint_all)

src/OT/Color/CBDT/CBDT.hh

@@ -941,10 +941,12 @@ struct CBDT
       }
     }
 
-    bool has_data () const { return cbdt.get_length (); }
+    bool has_data () const { return cbdt->version.major; }
 
     bool paint_glyph (hb_font_t *font, hb_codepoint_t glyph, hb_paint_funcs_t *funcs, void *data) const
     {
+      if (!has_data ()) return false;
+
       hb_glyph_extents_t extents;
       hb_glyph_extents_t pixel_extents;
       hb_blob_t *blob = reference_png (font, glyph);

src/OT/Color/COLR/COLR.hh

@@ -29,11 +29,14 @@
 #define OT_COLOR_COLR_COLR_HH
 
 #include "../../../hb.hh"
+#include "../../../hb-decycler.hh"
 #include "../../../hb-open-type.hh"
 #include "../../../hb-ot-var-common.hh"
 #include "../../../hb-paint.hh"
 #include "../../../hb-paint-extents.hh"
 
+#include "../CPAL/CPAL.hh"
+
 /*
  * COLR -- Color
  * https://docs.microsoft.com/en-us/typography/opentype/spec/colr
@@ -44,6 +47,11 @@ namespace OT {
 struct hb_paint_context_t;
 }
 
+struct hb_colr_scratch_t
+{
+  hb_paint_extents_context_t paint_extents;
+};
+
 namespace OT {
 
 struct COLR;
@@ -66,11 +74,11 @@ public:
   hb_paint_funcs_t *funcs;
   void *data;
   hb_font_t *font;
-  unsigned int palette_index;
+  hb_array_t<const BGRAColor> palette;
   hb_color_t foreground;
   ItemVarStoreInstancer &instancer;
-  hb_map_t current_glyphs;
-  hb_map_t current_layers;
+  hb_decycler_t glyphs_decycler;
+  hb_decycler_t layers_decycler;
   int depth_left = HB_MAX_NESTING_LEVEL;
   int edge_count = HB_MAX_GRAPH_EDGE_COUNT;
 
@@ -85,7 +93,12 @@ public:
     funcs (funcs_),
     data (data_),
     font (font_),
-    palette_index (palette_),
+    palette (
+#ifndef HB_NO_COLOR
+	     // https://github.com/harfbuzz/harfbuzz/issues/5116
+	     font->face->table.CPAL->get_palette_colors (palette_ < font->face->table.CPAL->get_palette_count () ? palette_ : 0)
+#endif
+    ),
     foreground (foreground_),
     instancer (instancer_)
   { }
@@ -99,12 +112,7 @@ public:
     if (color_index != 0xffff)
     {
       if (!funcs->custom_palette_color (data, color_index, &color))
-      {
-	unsigned int clen = 1;
-	hb_face_t *face = hb_font_get_face (font);
-
-	hb_ot_color_palette_get_colors (face, palette_index, color_index, &clen, &color);
-      }
+        color = palette[color_index];
 
       *is_foreground = false;
     }
@@ -930,9 +938,9 @@ struct PaintGlyph
   void paint_glyph (hb_paint_context_t *c) const
   {
     TRACE_PAINT (this);
-    c->funcs->push_inverse_root_transform (c->data, c->font);
+    c->funcs->push_inverse_font_transform (c->data, c->font);
     c->funcs->push_clip_glyph (c->data, gid, c->font);
-    c->funcs->push_root_transform (c->data, c->font);
+    c->funcs->push_font_transform (c->data, c->font);
     c->recurse (this+paint);
     c->funcs->pop_transform (c->data);
     c->funcs->pop_clip (c->data);
@@ -1003,7 +1011,7 @@ struct PaintTransform
   void paint_glyph (hb_paint_context_t *c) const
   {
     TRACE_PAINT (this);
-    (this+transform).paint_glyph (c);
+    (this+transform).paint_glyph (c); // This does a push_transform()
     c->recurse (this+src);
     c->funcs->pop_transform (c->data);
   }
@@ -1509,10 +1517,12 @@ struct PaintComposite
   void paint_glyph (hb_paint_context_t *c) const
   {
     TRACE_PAINT (this);
+    c->funcs->push_group (c->data);
     c->recurse (this+backdrop);
     c->funcs->push_group (c->data);
     c->recurse (this+src);
     c->funcs->pop_group (c->data, (hb_paint_composite_mode_t) (int) mode);
+    c->funcs->pop_group (c->data, HB_PAINT_COMPOSITE_MODE_SRC_OVER);
   }
 
   HBUINT8		format; /* format = 32 */
@@ -1610,7 +1620,7 @@ struct ClipBox
   void closurev1 (hb_colrv1_closure_context_t* c) const
   {
     switch (u.format) {
-    case 2: u.format2.closurev1 (c);
+    case 2: u.format2.closurev1 (c); return;
     default:return;
     }
   }
@@ -2058,7 +2068,7 @@ struct delta_set_index_map_subset_plan_t
       unsigned outer = (*var_idx) >> 16;
       unsigned bit_count = (outer == 0) ? 1 : hb_bit_storage (outer);
       outer_bit_count = hb_max (bit_count, outer_bit_count);
-      
+
       unsigned inner = (*var_idx) & 0xFFFF;
       bit_count = (inner == 0) ? 1 : hb_bit_storage (inner);
       inner_bit_count = hb_max (bit_count, inner_bit_count);
@@ -2077,10 +2087,12 @@ struct COLR
 {
   static constexpr hb_tag_t tableTag = HB_OT_TAG_COLR;
 
+  bool has_data () const { return has_v0_data () || version; }
+
   bool has_v0_data () const { return numBaseGlyphs; }
   bool has_v1_data () const
   {
-    if (version != 1)
+    if (version < 1)
       return false;
     hb_barrier ();
 
@@ -2110,7 +2122,53 @@ struct COLR
   {
     accelerator_t (hb_face_t *face)
     { colr = hb_sanitize_context_t ().reference_table<COLR> (face); }
-    ~accelerator_t () { this->colr.destroy (); }
+
+    ~accelerator_t ()
+    {
+      auto *scratch = cached_scratch.get_relaxed ();
+      if (scratch)
+      {
+	scratch->~hb_colr_scratch_t ();
+	hb_free (scratch);
+      }
+
+      colr.destroy ();
+    }
+
+
+    bool has_data () const { return colr->has_data (); }
+
+#ifndef HB_NO_PAINT
+    bool
+    get_extents (hb_font_t *font,
+		 hb_codepoint_t glyph,
+		 hb_glyph_extents_t *extents) const
+    {
+      if (unlikely (!has_data ())) return false;
+
+      hb_colr_scratch_t *scratch = acquire_scratch ();
+      if (unlikely (!scratch)) return true;
+      bool ret = colr->get_extents (font, glyph, extents, *scratch);
+      release_scratch (scratch);
+      return ret;
+    }
+
+    bool paint_glyph (hb_font_t *font,
+		      hb_codepoint_t glyph,
+		      hb_paint_funcs_t *funcs, void *data,
+		      unsigned int palette_index,
+		      hb_color_t foreground,
+		      bool clip = true) const
+    {
+      if (unlikely (!has_data ())) return false;
+
+      hb_colr_scratch_t *scratch = acquire_scratch ();
+      if (unlikely (!scratch)) return true;
+      bool ret = colr->paint_glyph (font, glyph, funcs, data, palette_index, foreground, clip, *scratch);
+      release_scratch (scratch);
+      return ret;
+    }
+#endif
 
     bool is_valid () { return colr.get_blob ()->length; }
 
@@ -2134,15 +2192,45 @@ struct COLR
 
     const ItemVariationStore &get_var_store () const
     { return colr->get_var_store (); }
+    const ItemVariationStore *get_var_store_ptr () const
+    { return colr->get_var_store_ptr (); }
 
     bool has_delta_set_index_map () const
     { return colr->has_delta_set_index_map (); }
 
     const DeltaSetIndexMap &get_delta_set_index_map () const
     { return colr->get_delta_set_index_map (); }
+    const DeltaSetIndexMap *get_delta_set_index_map_ptr () const
+    { return colr->get_delta_set_index_map_ptr (); }
 
     private:
+
+    hb_colr_scratch_t *acquire_scratch () const
+    {
+      hb_colr_scratch_t *scratch = cached_scratch.get_acquire ();
+
+      if (!scratch || unlikely (!cached_scratch.cmpexch (scratch, nullptr)))
+      {
+	scratch = (hb_colr_scratch_t *) hb_calloc (1, sizeof (hb_colr_scratch_t));
+	if (unlikely (!scratch))
+	  return nullptr;
+      }
+
+      return scratch;
+    }
+    void release_scratch (hb_colr_scratch_t *scratch) const
+    {
+      if (!cached_scratch.cmpexch (nullptr, scratch))
+      {
+	scratch->~hb_colr_scratch_t ();
+	hb_free (scratch);
+      }
+    }
+
+    public:
     hb_blob_ptr_t<COLR> colr;
+    private:
+    hb_atomic_t<hb_colr_scratch_t *> cached_scratch;
   };
 
   void closure_glyphs (hb_codepoint_t glyph,
@@ -2180,7 +2268,7 @@ struct COLR
                       hb_set_t *variation_indices,
                       hb_set_t *delta_set_indices) const
   {
-    if (version != 1) return;
+    if (version < 1) return;
     hb_barrier ();
 
     hb_set_t visited_glyphs;
@@ -2222,16 +2310,26 @@ struct COLR
   { return (this+baseGlyphList); }
 
   bool has_var_store () const
-  { return version >= 1 && varStore != 0; }
+  { return version >= 1 && hb_barrier () && varStore != 0; }
 
   bool has_delta_set_index_map () const
-  { return version >= 1 && varIdxMap != 0; }
+  { return version >= 1 && hb_barrier () && varIdxMap != 0; }
+
+  bool has_clip_list () const
+  { return version >= 1 && hb_barrier () && clipList != 0; }
 
   const DeltaSetIndexMap &get_delta_set_index_map () const
-  { return (version == 0 || varIdxMap == 0) ? Null (DeltaSetIndexMap) : this+varIdxMap; }
+  { return has_delta_set_index_map () && hb_barrier () ? this+varIdxMap : Null (DeltaSetIndexMap); }
+  const DeltaSetIndexMap *get_delta_set_index_map_ptr () const
+  { return has_delta_set_index_map () && hb_barrier () ? &(this+varIdxMap) : nullptr; }
 
   const ItemVariationStore &get_var_store () const
-  { return (version == 0 || varStore == 0) ? Null (ItemVariationStore) : this+varStore; }
+  { return has_var_store () && hb_barrier () ? this+varStore : Null (ItemVariationStore); }
+  const ItemVariationStore *get_var_store_ptr () const
+  { return has_var_store () && hb_barrier () ? &(this+varStore) : nullptr; }
+
+  const ClipList &get_clip_list () const
+  { return has_clip_list () && hb_barrier () ? this+clipList : Null (ClipList); }
 
   bool sanitize (hb_sanitize_context_t *c) const
   {
@@ -2242,7 +2340,6 @@ struct COLR
                   (this+layersZ).sanitize (c, numLayers) &&
                   (version == 0 ||
 		   (hb_barrier () &&
-		    version == 1 &&
 		    baseGlyphList.sanitize (c, this) &&
 		    layerList.sanitize (c, this) &&
 		    clipList.sanitize (c, this) &&
@@ -2465,7 +2562,9 @@ struct COLR
     if (unlikely (!c->serializer->extend_min (colr_prime)))  return_trace (false);
 
     if (version == 0 || downgrade_to_V0 (glyphset))
-    return_trace (colr_prime->serialize_V0 (c->serializer, 0, base_it, layer_it));
+      return_trace (colr_prime->serialize_V0 (c->serializer, 0, base_it, layer_it));
+
+    hb_barrier ();
 
     //start version 1
     if (!c->serializer->allocate_size<void> (5 * HBUINT32::static_size)) return_trace (false);
@@ -2475,9 +2574,9 @@ struct COLR
      * after instancing */
     if (!subset_varstore (c, colr_prime)) return_trace (false);
 
-    ItemVarStoreInstancer instancer (varStore ? &(this+varStore) : nullptr,
-	                         varIdxMap ? &(this+varIdxMap) : nullptr,
-	                         c->plan->normalized_coords.as_array ());
+    ItemVarStoreInstancer instancer (get_var_store_ptr (),
+				     get_delta_set_index_map_ptr (),
+				     c->plan->normalized_coords.as_array ());
 
     if (!colr_prime->baseGlyphList.serialize_subset (c, baseGlyphList, this, instancer))
       return_trace (false);
@@ -2503,14 +2602,15 @@ struct COLR
 
 #ifndef HB_NO_PAINT
   bool
-  get_extents (hb_font_t *font, hb_codepoint_t glyph, hb_glyph_extents_t *extents) const
+  get_extents (hb_font_t *font,
+	       hb_codepoint_t glyph,
+	       hb_glyph_extents_t *extents,
+	       hb_colr_scratch_t &scratch) const
   {
-    if (version != 1)
-      return false;
 
-    ItemVarStoreInstancer instancer (&(this+varStore),
-				 &(this+varIdxMap),
-				 hb_array (font->coords, font->num_coords));
+    ItemVarStoreInstancer instancer (get_var_store_ptr (),
+                                     get_delta_set_index_map_ptr (),
+                                     hb_array (font->coords, font->num_coords));
 
     if (get_clip (glyph, extents, instancer))
     {
@@ -2519,10 +2619,10 @@ struct COLR
     }
 
     auto *extents_funcs = hb_paint_extents_get_funcs ();
-    hb_paint_extents_context_t extents_data;
-    bool ret = paint_glyph (font, glyph, extents_funcs, &extents_data, 0, HB_COLOR(0,0,0,0));
+    scratch.paint_extents.clear ();
+    bool ret = paint_glyph (font, glyph, extents_funcs, &scratch.paint_extents, 0, HB_COLOR(0,0,0,0), true, scratch);
 
-    hb_extents_t e = extents_data.get_extents ();
+    auto e = scratch.paint_extents.get_extents ();
     if (e.is_void ())
     {
       extents->x_bearing = 0;
@@ -2532,6 +2632,7 @@ struct COLR
     }
     else
     {
+      // Ugh. We need to undo the synthetic slant here. Leave it for now. :-(.
       extents->x_bearing = e.xmin;
       extents->y_bearing = e.ymax;
       extents->width = e.xmax - e.xmin;
@@ -2545,7 +2646,7 @@ struct COLR
   bool
   has_paint_for_glyph (hb_codepoint_t glyph) const
   {
-    if (version == 1)
+    if (version >= 1)
     {
       hb_barrier ();
 
@@ -2561,22 +2662,29 @@ struct COLR
 		 hb_glyph_extents_t *extents,
 		 const ItemVarStoreInstancer instancer) const
   {
-    return (this+clipList).get_extents (glyph,
+    return get_clip_list ().get_extents (glyph,
 					extents,
 					instancer);
   }
 
 #ifndef HB_NO_PAINT
   bool
-  paint_glyph (hb_font_t *font, hb_codepoint_t glyph, hb_paint_funcs_t *funcs, void *data, unsigned int palette_index, hb_color_t foreground, bool clip = true) const
+  paint_glyph (hb_font_t *font,
+	       hb_codepoint_t glyph,
+	       hb_paint_funcs_t *funcs, void *data,
+	       unsigned int palette_index, hb_color_t foreground,
+	       bool clip,
+	       hb_colr_scratch_t &scratch) const
   {
-    ItemVarStoreInstancer instancer (&(this+varStore),
-	                         &(this+varIdxMap),
-	                         hb_array (font->coords, font->num_coords));
+    ItemVarStoreInstancer instancer (get_var_store_ptr (),
+				     get_delta_set_index_map_ptr (),
+				     hb_array (font->coords, font->num_coords));
     hb_paint_context_t c (this, funcs, data, font, palette_index, foreground, instancer);
-    c.current_glyphs.add (glyph);
 
-    if (version == 1)
+    hb_decycler_node_t node (c.glyphs_decycler);
+    node.visit (glyph);
+
+    if (version >= 1)
     {
       hb_barrier ();
 
@@ -2592,6 +2700,7 @@ struct COLR
 	  if (get_clip (glyph, &extents, instancer))
 	  {
 	    font->scale_glyph_extents (&extents);
+	    font->synthetic_glyph_extents (&extents);
 	    c.funcs->push_clip_rectangle (c.data,
 					  extents.x_bearing,
 					  extents.y_bearing + extents.height,
@@ -2601,15 +2710,16 @@ struct COLR
 	  else
 	  {
 	    auto *extents_funcs = hb_paint_extents_get_funcs ();
-	    hb_paint_extents_context_t extents_data;
+	    scratch.paint_extents.clear ();
 
 	    paint_glyph (font, glyph,
-			 extents_funcs, &extents_data,
+			 extents_funcs, &scratch.paint_extents,
 			 palette_index, foreground,
-			 false);
+			 false,
+			 scratch);
 
-	    hb_extents_t extents = extents_data.get_extents ();
-	    is_bounded = extents_data.is_bounded ();
+	    auto extents = scratch.paint_extents.get_extents ();
+	    is_bounded = scratch.paint_extents.is_bounded ();
 
 	    c.funcs->push_clip_rectangle (c.data,
 					  extents.xmin,
@@ -2619,7 +2729,7 @@ struct COLR
 	  }
 	}
 
-	c.funcs->push_root_transform (c.data, font);
+	c.funcs->push_font_transform (c.data, font);
 
 	if (is_bounded)
 	  c.recurse (*paint);
@@ -2690,19 +2800,14 @@ void PaintColrLayers::paint_glyph (hb_paint_context_t *c) const
 {
   TRACE_PAINT (this);
   const LayerList &paint_offset_lists = c->get_colr_table ()->get_layerList ();
+  hb_decycler_node_t node (c->layers_decycler);
   for (unsigned i = firstLayerIndex; i < firstLayerIndex + numLayers; i++)
   {
-    if (unlikely (c->current_layers.has (i)))
-      continue;
-
-    c->current_layers.add (i);
+    if (unlikely (!node.visit (i)))
+      return;
 
     const Paint &paint = paint_offset_lists.get_paint (i);
-    c->funcs->push_group (c->data);
     c->recurse (paint);
-    c->funcs->pop_group (c->data, HB_PAINT_COMPOSITE_MODE_SRC_OVER);
-
-    c->current_layers.del (i);
   }
 }
 
@@ -2710,16 +2815,14 @@ void PaintColrGlyph::paint_glyph (hb_paint_context_t *c) const
 {
   TRACE_PAINT (this);
 
-  if (unlikely (c->current_glyphs.has (gid)))
+  hb_decycler_node_t node (c->glyphs_decycler);
+  if (unlikely (!node.visit (gid)))
     return;
 
-  c->current_glyphs.add (gid);
-
-  c->funcs->push_inverse_root_transform (c->data, c->font);
+  c->funcs->push_inverse_font_transform (c->data, c->font);
   if (c->funcs->color_glyph (c->data, gid, c->font))
   {
     c->funcs->pop_transform (c->data);
-    c->current_glyphs.del (gid);
     return;
   }
   c->funcs->pop_transform (c->data);
@@ -2742,8 +2845,6 @@ void PaintColrGlyph::paint_glyph (hb_paint_context_t *c) const
 
   if (has_clip_box)
     c->funcs->pop_clip (c->data);
-
-  c->current_glyphs.del (gid);
 }
 
 } /* namespace OT */

src/OT/Color/CPAL/CPAL.hh

@@ -187,6 +187,14 @@ struct CPAL
   hb_ot_name_id_t get_color_name_id (unsigned int color_index) const
   { return v1 ().get_color_name_id (this, color_index, numColors); }
 
+  hb_array_t<const BGRAColor> get_palette_colors (unsigned int palette_index) const
+  {
+    if (unlikely (palette_index >= numPalettes))
+      return hb_array_t<const BGRAColor> ();
+    unsigned int start_index = colorRecordIndicesZ[palette_index];
+    hb_array_t<const BGRAColor> all_colors ((this+colorRecordsZ).arrayZ, numColorRecords);
+    return all_colors.sub_array (start_index, numColors);
+  }
   unsigned int get_palette_colors (unsigned int  palette_index,
 				   unsigned int  start_offset,
 				   unsigned int *color_count, /* IN/OUT.  May be NULL. */

src/OT/Layout/Common/Coverage.hh

@@ -96,6 +96,15 @@ struct Coverage
     default:return NOT_COVERED;
     }
   }
+  unsigned int get_coverage (hb_codepoint_t glyph_id,
+			     hb_ot_lookup_cache_t *cache) const
+  {
+    unsigned coverage;
+    if (cache && cache->get (glyph_id, &coverage)) return coverage;
+    coverage = get_coverage (glyph_id);
+    if (cache) cache->set (glyph_id, coverage);
+    return coverage;
+  }
 
   unsigned get_population () const
   {
@@ -201,6 +210,19 @@ struct Coverage
     }
   }
 
+  unsigned cost () const
+  {
+    switch (u.format) {
+    case 1: hb_barrier (); return u.format1.cost ();
+    case 2: hb_barrier (); return u.format2.cost ();
+#ifndef HB_NO_BEYOND_64K
+    case 3: hb_barrier (); return u.format3.cost ();
+    case 4: hb_barrier (); return u.format4.cost ();
+#endif
+    default:return 0u;
+    }
+  }
+
   /* Might return false if array looks unsorted.
    * Used for faster rejection of corrupt data. */
   template <typename set_t>

src/OT/Layout/Common/CoverageFormat1.hh

@@ -77,7 +77,7 @@ struct CoverageFormat1_3
 
   bool intersects (const hb_set_t *glyphs) const
   {
-    if (glyphArray.len > glyphs->get_population () * hb_bit_storage ((unsigned) glyphArray.len) / 2)
+    if (glyphArray.len > glyphs->get_population () * hb_bit_storage ((unsigned) glyphArray.len))
     {
       for (auto g : *glyphs)
         if (get_coverage (g) != NOT_COVERED)
@@ -103,6 +103,8 @@ struct CoverageFormat1_3
         intersect_glyphs << glyphArray[i];
   }
 
+  unsigned cost () const { return hb_bit_storage ((unsigned) glyphArray.len); /* bsearch cost */ }
+
   template <typename set_t>
   bool collect_coverage (set_t *glyphs) const
   { return glyphs->add_sorted_array (glyphArray.as_array ()); }

src/OT/Layout/Common/CoverageFormat2.hh

@@ -120,7 +120,7 @@ struct CoverageFormat2_4
 
   bool intersects (const hb_set_t *glyphs) const
   {
-    if (rangeRecord.len > glyphs->get_population () * hb_bit_storage ((unsigned) rangeRecord.len) / 2)
+    if (rangeRecord.len > glyphs->get_population () * hb_bit_storage ((unsigned) rangeRecord.len))
     {
       for (auto g : *glyphs)
         if (get_coverage (g) != NOT_COVERED)
@@ -157,6 +157,8 @@ struct CoverageFormat2_4
     }
   }
 
+  unsigned cost () const { return hb_bit_storage ((unsigned) rangeRecord.len); /* bsearch cost */ }
+
   template <typename set_t>
   bool collect_coverage (set_t *glyphs) const
   {

src/OT/Layout/GDEF/GDEF.hh

@@ -205,20 +205,19 @@ struct CaretValueFormat3
 
     unsigned varidx = (this+deviceTable).get_variation_index ();
     hb_pair_t<unsigned, int> *new_varidx_delta;
-    if (!c->plan->layout_variation_idx_delta_map.has (varidx, &new_varidx_delta))
-      return_trace (false);
+    if (c->plan->layout_variation_idx_delta_map.has (varidx, &new_varidx_delta)) {
+      uint32_t new_varidx = hb_first (*new_varidx_delta);
+      int delta = hb_second (*new_varidx_delta);
+      if (delta != 0)
+      {
+        if (!c->serializer->check_assign (out->coordinate, coordinate + delta, HB_SERIALIZE_ERROR_INT_OVERFLOW))
+          return_trace (false);
+      }
 
-    uint32_t new_varidx = hb_first (*new_varidx_delta);
-    int delta = hb_second (*new_varidx_delta);
-    if (delta != 0)
-    {
-      if (!c->serializer->check_assign (out->coordinate, coordinate + delta, HB_SERIALIZE_ERROR_INT_OVERFLOW))
-        return_trace (false);
+      if (new_varidx == HB_OT_LAYOUT_NO_VARIATIONS_INDEX)
+        return_trace (c->serializer->check_assign (out->caretValueFormat, 1, HB_SERIALIZE_ERROR_INT_OVERFLOW));
     }
 
-    if (new_varidx == HB_OT_LAYOUT_NO_VARIATIONS_INDEX)
-      return_trace (c->serializer->check_assign (out->caretValueFormat, 1, HB_SERIALIZE_ERROR_INT_OVERFLOW));
-
     if (!c->serializer->embed (deviceTable))
       return_trace (false);
 
@@ -1015,7 +1014,8 @@ struct GDEF
     hb_blob_ptr_t<GDEF> table;
 #ifndef HB_NO_GDEF_CACHE
     hb_vector_t<hb_set_digest_t> mark_glyph_set_digests;
-    mutable hb_cache_t<21, 3, 8> glyph_props_cache;
+    mutable hb_cache_t<21, 3> glyph_props_cache;
+    static_assert (sizeof (glyph_props_cache) == 512, "");
 #endif
   };
 

src/OT/Layout/GPOS/PairPosFormat1.hh

@@ -54,7 +54,7 @@ struct PairPosFormat1_3
   {
     auto &cov = this+coverage;
 
-    if (pairSet.len > glyphs->get_population () * hb_bit_storage ((unsigned) pairSet.len) / 4)
+    if (pairSet.len > glyphs->get_population () * hb_bit_storage ((unsigned) pairSet.len))
     {
       for (hb_codepoint_t g : glyphs->iter())
       {
@@ -103,12 +103,50 @@ struct PairPosFormat1_3
 
   const Coverage &get_coverage () const { return this+coverage; }
 
-  bool apply (hb_ot_apply_context_t *c) const
+  unsigned cache_cost () const
+  {
+    return (this+coverage).cost ();
+  }
+  static void * cache_func (void *p, hb_ot_lookup_cache_op_t op)
+  {
+    switch (op)
+    {
+      case hb_ot_lookup_cache_op_t::CREATE:
+      {
+	hb_ot_lookup_cache_t *cache = (hb_ot_lookup_cache_t *) hb_malloc (sizeof (hb_ot_lookup_cache_t));
+	if (likely (cache))
+	  cache->clear ();
+	return cache;
+      }
+      case hb_ot_lookup_cache_op_t::ENTER:
+	return (void *) true;
+      case hb_ot_lookup_cache_op_t::LEAVE:
+	return nullptr;
+      case hb_ot_lookup_cache_op_t::DESTROY:
+      {
+	hb_ot_lookup_cache_t *cache = (hb_ot_lookup_cache_t *) p;
+	hb_free (cache);
+	return nullptr;
+      }
+    }
+    return nullptr;
+  }
+
+  bool apply_cached (hb_ot_apply_context_t *c) const { return _apply (c, true); }
+  bool apply (hb_ot_apply_context_t *c) const { return _apply (c, false); }
+  bool _apply (hb_ot_apply_context_t *c, bool cached) const
   {
     TRACE_APPLY (this);
+
     hb_buffer_t *buffer = c->buffer;
+
+#ifndef HB_NO_OT_LAYOUT_LOOKUP_CACHE
+    hb_ot_lookup_cache_t *cache = cached ? (hb_ot_lookup_cache_t *) c->lookup_accel->cache : nullptr;
+    unsigned int index = (this+coverage).get_coverage  (buffer->cur().codepoint, cache);
+#else
     unsigned int index = (this+coverage).get_coverage  (buffer->cur().codepoint);
-    if (likely (index == NOT_COVERED)) return_trace (false);
+#endif
+    if (index == NOT_COVERED) return_trace (false);
 
     hb_ot_apply_context_t::skipping_iterator_t &skippy_iter = c->iter_input;
     skippy_iter.reset_fast (buffer->idx);
@@ -156,7 +194,7 @@ struct PairPosFormat1_3
         strip = true;
       newFormats = compute_effective_value_formats (glyphset, strip, true);
     }
-    
+
     out->valueFormat[0] = newFormats.first;
     out->valueFormat[1] = newFormats.second;
 

src/OT/Layout/GPOS/PairPosFormat2.hh

@@ -123,12 +123,61 @@ struct PairPosFormat2_4 : ValueBase
 
   const Coverage &get_coverage () const { return this+coverage; }
 
-  bool apply (hb_ot_apply_context_t *c) const
+  struct pair_pos_cache_t
+  {
+    hb_ot_lookup_cache_t coverage;
+    hb_ot_lookup_cache_t first;
+    hb_ot_lookup_cache_t second;
+  };
+
+  unsigned cache_cost () const
+  {
+    return (this+coverage).cost () + (this+classDef1).cost () + (this+classDef2).cost ();
+  }
+  static void * cache_func (void *p, hb_ot_lookup_cache_op_t op)
+  {
+    switch (op)
+    {
+      case hb_ot_lookup_cache_op_t::CREATE:
+      {
+	pair_pos_cache_t *cache = (pair_pos_cache_t *) hb_malloc (sizeof (pair_pos_cache_t));
+	if (likely (cache))
+	{
+	  cache->coverage.clear ();
+	  cache->first.clear ();
+	  cache->second.clear ();
+	}
+	return cache;
+      }
+      case hb_ot_lookup_cache_op_t::ENTER:
+	return (void *) true;
+      case hb_ot_lookup_cache_op_t::LEAVE:
+	return nullptr;
+      case hb_ot_lookup_cache_op_t::DESTROY:
+	{
+	  pair_pos_cache_t *cache = (pair_pos_cache_t *) p;
+	  hb_free (cache);
+	  return nullptr;
+	}
+    }
+    return nullptr;
+  }
+
+  bool apply_cached (hb_ot_apply_context_t *c) const { return _apply (c, true); }
+  bool apply (hb_ot_apply_context_t *c) const { return _apply (c, false); }
+  bool _apply (hb_ot_apply_context_t *c, bool cached) const
   {
     TRACE_APPLY (this);
+
     hb_buffer_t *buffer = c->buffer;
+
+#ifndef HB_NO_OT_LAYOUT_LOOKUP_CACHE
+    pair_pos_cache_t *cache = cached ? (pair_pos_cache_t *) c->lookup_accel->cache : nullptr;
+    unsigned int index = (this+coverage).get_coverage  (buffer->cur().codepoint, cache ? &cache->coverage : nullptr);
+#else
     unsigned int index = (this+coverage).get_coverage  (buffer->cur().codepoint);
-    if (likely (index == NOT_COVERED)) return_trace (false);
+#endif
+    if (index == NOT_COVERED) return_trace (false);
 
     hb_ot_apply_context_t::skipping_iterator_t &skippy_iter = c->iter_input;
     skippy_iter.reset_fast (buffer->idx);
@@ -139,8 +188,13 @@ struct PairPosFormat2_4 : ValueBase
       return_trace (false);
     }
 
+#ifndef HB_NO_OT_LAYOUT_LOOKUP_CACHE
+    unsigned int klass1 = (this+classDef1).get_class (buffer->cur().codepoint, cache ? &cache->first : nullptr);
+    unsigned int klass2 = (this+classDef2).get_class (buffer->info[skippy_iter.idx].codepoint, cache ? &cache->second : nullptr);
+#else
     unsigned int klass1 = (this+classDef1).get_class (buffer->cur().codepoint);
     unsigned int klass2 = (this+classDef2).get_class (buffer->info[skippy_iter.idx].codepoint);
+#endif
     if (unlikely (klass1 >= class1Count || klass2 >= class2Count))
     {
       buffer->unsafe_to_concat (buffer->idx, skippy_iter.idx + 1);

src/OT/Layout/GPOS/SinglePosFormat1.hh

@@ -67,7 +67,7 @@ struct SinglePosFormat1 : ValueBase
     TRACE_APPLY (this);
     hb_buffer_t *buffer = c->buffer;
     unsigned int index = (this+coverage).get_coverage  (buffer->cur().codepoint);
-    if (likely (index == NOT_COVERED)) return_trace (false);
+    if (index == NOT_COVERED) return_trace (false);
 
     if (HB_BUFFER_MESSAGE_MORE && c->buffer->messaging ())
     {

src/OT/Layout/GPOS/SinglePosFormat2.hh

@@ -66,7 +66,7 @@ struct SinglePosFormat2 : ValueBase
     TRACE_APPLY (this);
     hb_buffer_t *buffer = c->buffer;
     unsigned int index = (this+coverage).get_coverage  (buffer->cur().codepoint);
-    if (likely (index == NOT_COVERED)) return_trace (false);
+    if (index == NOT_COVERED) return_trace (false);
 
     if (unlikely (index >= valueCount)) return_trace (false);
 

src/OT/Layout/GSUB/AlternateSubstFormat1.hh

@@ -74,7 +74,7 @@ struct AlternateSubstFormat1_2
     TRACE_APPLY (this);
 
     unsigned int index = (this+coverage).get_coverage (c->buffer->cur().codepoint);
-    if (likely (index == NOT_COVERED)) return_trace (false);
+    if (index == NOT_COVERED) return_trace (false);
 
     return_trace ((this+alternateSet[index]).apply (c));
   }

src/OT/Layout/GSUB/LigatureSubstFormat1.hh

@@ -78,12 +78,49 @@ struct LigatureSubstFormat1_2
     return lig_set.would_apply (c);
   }
 
-  bool apply (hb_ot_apply_context_t *c) const
+  unsigned cache_cost () const
+  {
+    return (this+coverage).cost ();
+  }
+  static void * cache_func (void *p, hb_ot_lookup_cache_op_t op)
+  {
+    switch (op)
+    {
+      case hb_ot_lookup_cache_op_t::CREATE:
+      {
+	hb_ot_lookup_cache_t *cache = (hb_ot_lookup_cache_t *) hb_malloc (sizeof (hb_ot_lookup_cache_t));
+	if (likely (cache))
+	  cache->clear ();
+	return cache;
+      }
+      case hb_ot_lookup_cache_op_t::ENTER:
+	return (void *) true;
+      case hb_ot_lookup_cache_op_t::LEAVE:
+	return nullptr;
+      case hb_ot_lookup_cache_op_t::DESTROY:
+      {
+	hb_ot_lookup_cache_t *cache = (hb_ot_lookup_cache_t *) p;
+	hb_free (cache);
+	return nullptr;
+      }
+    }
+    return nullptr;
+  }
+
+  bool apply_cached (hb_ot_apply_context_t *c) const { return _apply (c, true); }
+  bool apply (hb_ot_apply_context_t *c) const { return _apply (c, false); }
+  bool _apply (hb_ot_apply_context_t *c, bool cached) const
   {
     TRACE_APPLY (this);
+    hb_buffer_t *buffer = c->buffer;
 
-    unsigned int index = (this+coverage).get_coverage (c->buffer->cur ().codepoint);
-    if (likely (index == NOT_COVERED)) return_trace (false);
+#ifndef HB_NO_OT_LAYOUT_LOOKUP_CACHE
+    hb_ot_lookup_cache_t *cache = cached ? (hb_ot_lookup_cache_t *) c->lookup_accel->cache : nullptr;
+    unsigned int index = (this+coverage).get_coverage  (buffer->cur().codepoint, cache);
+#else
+    unsigned int index = (this+coverage).get_coverage  (buffer->cur().codepoint);
+#endif
+    if (index == NOT_COVERED) return_trace (false);
 
     const auto &lig_set = this+ligatureSet[index];
     return_trace (lig_set.apply (c));

src/OT/Layout/GSUB/MultipleSubstFormat1.hh

@@ -66,7 +66,7 @@ struct MultipleSubstFormat1_2
     TRACE_APPLY (this);
 
     unsigned int index = (this+coverage).get_coverage (c->buffer->cur().codepoint);
-    if (likely (index == NOT_COVERED)) return_trace (false);
+    if (index == NOT_COVERED) return_trace (false);
 
     return_trace ((this+sequence[index]).apply (c));
   }

src/OT/Layout/GSUB/ReverseChainSingleSubstFormat1.hh

@@ -112,7 +112,7 @@ struct ReverseChainSingleSubstFormat1
   {
     TRACE_APPLY (this);
     unsigned int index = (this+coverage).get_coverage (c->buffer->cur ().codepoint);
-    if (likely (index == NOT_COVERED)) return_trace (false);
+    if (index == NOT_COVERED) return_trace (false);
 
     if (unlikely (c->nesting_level_left != HB_MAX_NESTING_LEVEL))
       return_trace (false); /* No chaining to this type */

src/OT/Layout/GSUB/SingleSubstFormat1.hh

@@ -128,7 +128,7 @@ struct SingleSubstFormat1_3
     TRACE_APPLY (this);
     hb_codepoint_t glyph_id = c->buffer->cur().codepoint;
     unsigned int index = (this+coverage).get_coverage (glyph_id);
-    if (likely (index == NOT_COVERED)) return_trace (false);
+    if (index == NOT_COVERED) return_trace (false);
 
     hb_codepoint_t d = deltaGlyphID;
     hb_codepoint_t mask = get_mask ();

src/OT/Layout/GSUB/SingleSubstFormat2.hh

@@ -104,7 +104,7 @@ struct SingleSubstFormat2_4
   {
     TRACE_APPLY (this);
     unsigned int index = (this+coverage).get_coverage (c->buffer->cur().codepoint);
-    if (likely (index == NOT_COVERED)) return_trace (false);
+    if (index == NOT_COVERED) return_trace (false);
 
     if (unlikely (index >= substitute.len)) return_trace (false);
 

src/OT/Layout/types.hh

@@ -29,6 +29,9 @@
 #ifndef OT_LAYOUT_TYPES_HH
 #define OT_LAYOUT_TYPES_HH
 
+using hb_ot_lookup_cache_t = hb_cache_t<15, 8, 7>;
+static_assert (sizeof (hb_ot_lookup_cache_t) == 256, "");
+
 namespace OT {
 namespace Layout {
 

src/OT/Var/VARC/VARC.cc

@@ -3,7 +3,6 @@
 #ifndef HB_NO_VAR_COMPOSITES
 
 #include "../../../hb-draw.hh"
-#include "../../../hb-geometry.hh"
 #include "../../../hb-ot-layout-common.hh"
 #include "../../../hb-ot-layout-gdef-table.hh"
 
@@ -127,24 +126,19 @@ hb_transforming_pen_get_funcs ()
   return static_transforming_pen_funcs.get_unconst ();
 }
 
-
 hb_ubytes_t
-VarComponent::get_path_at (hb_font_t *font,
+VarComponent::get_path_at (const hb_varc_context_t &c,
 			   hb_codepoint_t parent_gid,
-			   hb_draw_session_t &draw_session,
 			   hb_array_t<const int> coords,
+			   hb_transform_t total_transform,
 			   hb_ubytes_t total_record,
-			   hb_set_t *visited,
-			   signed *edges_left,
-			   signed depth_left,
 			   VarRegionList::cache_t *cache) const
 {
   const unsigned char *end = total_record.arrayZ + total_record.length;
   const unsigned char *record = total_record.arrayZ;
 
-  auto &VARC = *font->face->table.VARC;
+  auto &VARC = *c.font->face->table.VARC->table;
   auto &varStore = &VARC+VARC.varStore;
-  auto instancer = MultiItemVarStoreInstancer(&varStore, nullptr, coords, cache);
 
 #define READ_UINT32VAR(name) \
   HB_STMT_START { \
@@ -187,22 +181,25 @@ VarComponent::get_path_at (hb_font_t *font,
     unsigned conditionIndex;
     READ_UINT32VAR (conditionIndex);
     const auto &condition = (&VARC+VARC.conditionList)[conditionIndex];
+    auto instancer = MultiItemVarStoreInstancer(&varStore, nullptr, coords, cache);
     show = condition.evaluate (coords.arrayZ, coords.length, &instancer);
   }
 
   // Axis values
 
-  hb_vector_t<unsigned> axisIndices;
-  hb_vector_t<float> axisValues;
+  auto &axisIndices = c.scratch.axisIndices;
+  axisIndices.clear ();
+  auto &axisValues = c.scratch.axisValues;
+  axisValues.clear ();
   if (flags & (unsigned) flags_t::HAVE_AXES)
   {
     unsigned axisIndicesIndex;
     READ_UINT32VAR (axisIndicesIndex);
-    axisIndices = (&VARC+VARC.axisIndicesList)[axisIndicesIndex];
+    axisIndices.extend ((&VARC+VARC.axisIndicesList)[axisIndicesIndex]);
     axisValues.resize (axisIndices.length);
     const HBUINT8 *p = (const HBUINT8 *) record;
     TupleValues::decompile (p, axisValues, (const HBUINT8 *) end);
-    record += (const unsigned char *) p - record;
+    record = (const unsigned char *) p;
   }
 
   // Apply variations if any
@@ -219,7 +216,7 @@ VarComponent::get_path_at (hb_font_t *font,
    * limit on the max number of coords for now. */
   if ((flags & (unsigned) flags_t::RESET_UNSPECIFIED_AXES) ||
       coords.length > HB_VAR_COMPOSITE_MAX_AXES)
-    component_coords = hb_array<int> (font->coords, font->num_coords);
+    component_coords = hb_array<int> (c.font->coords, c.font->num_coords);
 
   // Transform
 
@@ -312,26 +309,19 @@ VarComponent::get_path_at (hb_font_t *font,
     if (!(flags & (unsigned) flags_t::HAVE_SCALE_Y))
       transform.scaleY = transform.scaleX;
 
-    // Scale the transform by the font's scale
-    float x_scale = font->x_multf;
-    float y_scale = font->y_multf;
-    transform.translateX *= x_scale;
-    transform.translateY *= y_scale;
-    transform.tCenterX *= x_scale;
-    transform.tCenterY *= y_scale;
+    total_transform.transform (transform.to_transform ());
+    total_transform.scale (c.font->x_mult ? 1.f / c.font->x_multf : 0.f,
+			   c.font->y_mult ? 1.f / c.font->y_multf : 0.f);
 
-    // Build a transforming pen to apply the transform.
-    hb_draw_funcs_t *transformer_funcs = hb_transforming_pen_get_funcs ();
-    hb_transforming_pen_context_t context {transform.to_transform (),
-					   draw_session.funcs,
-					   draw_session.draw_data,
-					   &draw_session.st};
-    hb_draw_session_t transformer_session {transformer_funcs, &context};
+    bool same_coords = component_coords.length == coords.length &&
+		       component_coords.arrayZ == coords.arrayZ;
 
-    VARC.get_path_at (font, gid,
-		      transformer_session, component_coords,
+    c.depth_left--;
+    VARC.get_path_at (c, gid,
+		      component_coords, total_transform,
 		      parent_gid,
-		      visited, edges_left, depth_left - 1);
+		      same_coords ? cache : nullptr);
+    c.depth_left++;
   }
 
 #undef PROCESS_TRANSFORM_COMPONENTS
@@ -340,6 +330,87 @@ VarComponent::get_path_at (hb_font_t *font,
   return hb_ubytes_t (record, end - record);
 }
 
+bool
+VARC::get_path_at (const hb_varc_context_t &c,
+		   hb_codepoint_t glyph,
+		   hb_array_t<const int> coords,
+		   hb_transform_t transform,
+		   hb_codepoint_t parent_glyph,
+		   VarRegionList::cache_t *parent_cache) const
+{
+  // Don't recurse on the same glyph.
+  unsigned idx = glyph == parent_glyph ?
+		 NOT_COVERED :
+		 (this+coverage).get_coverage (glyph);
+  if (idx == NOT_COVERED)
+  {
+    if (c.draw_session)
+    {
+      // Build a transforming pen to apply the transform.
+      hb_draw_funcs_t *transformer_funcs = hb_transforming_pen_get_funcs ();
+      hb_transforming_pen_context_t context {transform,
+					     c.draw_session->funcs,
+					     c.draw_session->draw_data,
+					     &c.draw_session->st};
+      hb_draw_session_t transformer_session {transformer_funcs, &context};
+      hb_draw_session_t &shape_draw_session = transform.is_identity () ? *c.draw_session : transformer_session;
+
+      if (!c.font->face->table.glyf->get_path_at (c.font, glyph, shape_draw_session, coords, c.scratch.glyf_scratch))
+#ifndef HB_NO_CFF
+      if (!c.font->face->table.cff2->get_path_at (c.font, glyph, shape_draw_session, coords))
+      if (!c.font->face->table.cff1->get_path (c.font, glyph, shape_draw_session)) // Doesn't have variations
+#endif
+	return false;
+    }
+    else if (c.extents)
+    {
+      hb_glyph_extents_t glyph_extents;
+      if (!c.font->face->table.glyf->get_extents_at (c.font, glyph, &glyph_extents, coords))
+#ifndef HB_NO_CFF
+      if (!c.font->face->table.cff2->get_extents_at (c.font, glyph, &glyph_extents, coords))
+      if (!c.font->face->table.cff1->get_extents (c.font, glyph, &glyph_extents)) // Doesn't have variations
+#endif
+	return false;
+
+      hb_extents_t comp_extents (glyph_extents);
+      transform.transform_extents (comp_extents);
+      c.extents->union_ (comp_extents);
+    }
+    return true;
+  }
+
+  if (c.depth_left <= 0)
+    return true;
+
+  if (c.edges_left <= 0)
+    return true;
+  (c.edges_left)--;
+
+  hb_decycler_node_t node (c.decycler);
+  if (unlikely (!node.visit (glyph)))
+    return true;
+
+  hb_ubytes_t record = (this+glyphRecords)[idx];
+
+  VarRegionList::cache_t static_cache[sizeof (void *) * 16];
+  VarRegionList::cache_t *cache = parent_cache ?
+				  parent_cache :
+				  (this+varStore).create_cache (hb_array (static_cache));
+
+  transform.scale (c.font->x_multf, c.font->y_multf);
+
+  VarCompositeGlyph::get_path_at (c,
+				  glyph,
+				  coords, transform,
+				  record,
+				  cache);
+
+  if (cache != parent_cache)
+    (this+varStore).destroy_cache (cache, hb_array (static_cache));
+
+  return true;
+}
+
 //} // namespace Var
 } // namespace OT
 

src/OT/Var/VARC/VARC.hh

@@ -1,6 +1,8 @@
 #ifndef OT_VAR_VARC_VARC_HH
 #define OT_VAR_VARC_VARC_HH
 
+#include "../../../hb-decycler.hh"
+#include "../../../hb-geometry.hh"
 #include "../../../hb-ot-layout-common.hh"
 #include "../../../hb-ot-glyf-table.hh"
 #include "../../../hb-ot-cff2-table.hh"
@@ -19,6 +21,24 @@ namespace OT {
 
 #ifndef HB_NO_VAR_COMPOSITES
 
+struct hb_varc_scratch_t
+{
+  hb_vector_t<unsigned> axisIndices;
+  hb_vector_t<float> axisValues;
+  hb_glyf_scratch_t glyf_scratch;
+};
+
+struct hb_varc_context_t
+{
+  hb_font_t *font;
+  hb_draw_session_t *draw_session;
+  hb_extents_t *extents;
+  mutable hb_decycler_t decycler;
+  mutable signed edges_left;
+  mutable signed depth_left;
+  hb_varc_scratch_t &scratch;
+};
+
 struct VarComponent
 {
   enum class flags_t : uint32_t
@@ -42,37 +62,32 @@ struct VarComponent
   };
 
   HB_INTERNAL hb_ubytes_t
-  get_path_at (hb_font_t *font,
+  get_path_at (const hb_varc_context_t &c,
 	       hb_codepoint_t parent_gid,
-	       hb_draw_session_t &draw_session,
 	       hb_array_t<const int> coords,
+	       hb_transform_t transform,
 	       hb_ubytes_t record,
-	       hb_set_t *visited,
-	       signed *edges_left,
-	       signed depth_left,
 	       VarRegionList::cache_t *cache = nullptr) const;
 };
 
 struct VarCompositeGlyph
 {
   static void
-  get_path_at (hb_font_t *font,
-	       hb_codepoint_t glyph,
-	       hb_draw_session_t &draw_session,
+  get_path_at (const hb_varc_context_t &c,
+	       hb_codepoint_t gid,
 	       hb_array_t<const int> coords,
+	       hb_transform_t transform,
 	       hb_ubytes_t record,
-	       hb_set_t *visited,
-	       signed *edges_left,
-	       signed depth_left,
-	       VarRegionList::cache_t *cache = nullptr)
+	       VarRegionList::cache_t *cache)
   {
     while (record)
     {
       const VarComponent &comp = * (const VarComponent *) (record.arrayZ);
-      record = comp.get_path_at (font, glyph,
-				 draw_session, coords,
+      record = comp.get_path_at (c,
+				 gid,
+				 coords, transform,
 				 record,
-				 visited, edges_left, depth_left, cache);
+				 cache);
     }
   }
 };
@@ -85,79 +100,48 @@ struct VARC
 
   static constexpr hb_tag_t tableTag = HB_TAG ('V', 'A', 'R', 'C');
 
-  bool
-  get_path_at (hb_font_t *font,
-	       hb_codepoint_t glyph,
-	       hb_draw_session_t &draw_session,
+  HB_INTERNAL bool
+  get_path_at (const hb_varc_context_t &c,
+	       hb_codepoint_t gid,
 	       hb_array_t<const int> coords,
-	       hb_codepoint_t parent_glyph = HB_CODEPOINT_INVALID,
-	       hb_set_t *visited = nullptr,
-	       signed *edges_left = nullptr,
-	       signed depth_left = HB_MAX_NESTING_LEVEL) const
+	       hb_transform_t transform = HB_TRANSFORM_IDENTITY,
+	       hb_codepoint_t parent_gid = HB_CODEPOINT_INVALID,
+	       VarRegionList::cache_t *parent_cache = nullptr) const;
+
+  bool
+  get_path (hb_font_t *font,
+	    hb_codepoint_t gid,
+	    hb_draw_session_t &draw_session,
+	    hb_varc_scratch_t &scratch) const
   {
-    hb_set_t stack_set;
-    if (visited == nullptr)
-      visited = &stack_set;
-    signed stack_edges = HB_MAX_GRAPH_EDGE_COUNT;
-    if (edges_left == nullptr)
-      edges_left = &stack_edges;
+    hb_varc_context_t c {font,
+			 &draw_session,
+			 nullptr,
+			 hb_decycler_t {},
+			 HB_MAX_GRAPH_EDGE_COUNT,
+			 HB_MAX_NESTING_LEVEL,
+			 scratch};
 
-    // Don't recurse on the same glyph.
-    unsigned idx = glyph == parent_glyph ?
-		   NOT_COVERED :
-		   (this+coverage).get_coverage (glyph);
-    if (idx == NOT_COVERED)
-    {
-      if (!font->face->table.glyf->get_path_at (font, glyph, draw_session, coords))
-#ifndef HB_NO_CFF
-      if (!font->face->table.cff2->get_path_at (font, glyph, draw_session, coords))
-      if (!font->face->table.cff1->get_path (font, glyph, draw_session)) // Doesn't have variations
-#endif
-	return false;
-      return true;
-    }
-
-    if (depth_left <= 0)
-      return true;
-
-    if (*edges_left <= 0)
-      return true;
-    (*edges_left)--;
-
-    if (visited->has (glyph) || visited->in_error ())
-      return true;
-    visited->add (glyph);
-
-    hb_ubytes_t record = (this+glyphRecords)[idx];
-
-    VarRegionList::cache_t *cache = record.length >= 64 ? // Heuristic
-				   (this+varStore).create_cache ()
-				   : nullptr;
-
-    VarCompositeGlyph::get_path_at (font, glyph,
-				    draw_session, coords,
-				    record,
-				    visited, edges_left, depth_left,
-				    cache);
-
-    (this+varStore).destroy_cache (cache);
-
-    visited->del (glyph);
-
-    return true;
+    return get_path_at (c, gid,
+			hb_array (font->coords, font->num_coords));
   }
 
   bool
-  get_path (hb_font_t *font, hb_codepoint_t gid, hb_draw_session_t &draw_session) const
-  { return get_path_at (font, gid, draw_session, hb_array (font->coords, font->num_coords)); }
-
-  bool paint_glyph (hb_font_t *font, hb_codepoint_t gid, hb_paint_funcs_t *funcs, void *data, hb_color_t foreground) const
+  get_extents (hb_font_t *font,
+	       hb_codepoint_t gid,
+	       hb_extents_t *extents,
+	       hb_varc_scratch_t &scratch) const
   {
-    funcs->push_clip_glyph (data, gid, font);
-    funcs->color (data, true, foreground);
-    funcs->pop_clip (data);
+    hb_varc_context_t c {font,
+			 nullptr,
+			 extents,
+			 hb_decycler_t {},
+			 HB_MAX_GRAPH_EDGE_COUNT,
+			 HB_MAX_NESTING_LEVEL,
+			 scratch};
 
-    return true;
+    return get_path_at (c, gid,
+			hb_array (font->coords, font->num_coords));
   }
 
   bool sanitize (hb_sanitize_context_t *c) const
@@ -173,6 +157,89 @@ struct VARC
 		  glyphRecords.sanitize (c, this));
   }
 
+  struct accelerator_t
+  {
+    friend struct VarComponent;
+
+    accelerator_t (hb_face_t *face)
+    {
+      table = hb_sanitize_context_t ().reference_table<VARC> (face);
+    }
+    ~accelerator_t ()
+    {
+      auto *scratch = cached_scratch.get_relaxed ();
+      if (scratch)
+      {
+	scratch->~hb_varc_scratch_t ();
+	hb_free (scratch);
+      }
+
+      table.destroy ();
+    }
+
+    bool
+    get_path (hb_font_t *font, hb_codepoint_t gid, hb_draw_session_t &draw_session) const
+    {
+      if (!table->has_data ()) return false;
+
+      auto *scratch = acquire_scratch ();
+      if (unlikely (!scratch)) return true;
+      bool ret = table->get_path (font, gid, draw_session, *scratch);
+      release_scratch (scratch);
+      return ret;
+    }
+
+    bool
+    get_extents (hb_font_t *font,
+		 hb_codepoint_t gid,
+		 hb_glyph_extents_t *extents) const
+    {
+      if (!table->has_data ()) return false;
+
+      hb_extents_t f_extents;
+
+      auto *scratch = acquire_scratch ();
+      if (unlikely (!scratch)) return true;
+      bool ret = table->get_extents (font, gid, &f_extents, *scratch);
+      release_scratch (scratch);
+
+      if (ret)
+	*extents = f_extents.to_glyph_extents (font->x_scale < 0, font->y_scale < 0);
+
+      return ret;
+    }
+
+    private:
+
+    hb_varc_scratch_t *acquire_scratch () const
+    {
+      hb_varc_scratch_t *scratch = cached_scratch.get_acquire ();
+
+      if (!scratch || unlikely (!cached_scratch.cmpexch (scratch, nullptr)))
+      {
+	scratch = (hb_varc_scratch_t *) hb_calloc (1, sizeof (hb_varc_scratch_t));
+	if (unlikely (!scratch))
+	  return nullptr;
+      }
+
+      return scratch;
+    }
+    void release_scratch (hb_varc_scratch_t *scratch) const
+    {
+      if (!cached_scratch.cmpexch (nullptr, scratch))
+      {
+	scratch->~hb_varc_scratch_t ();
+	hb_free (scratch);
+      }
+    }
+
+    private:
+    hb_blob_ptr_t<VARC> table;
+    hb_atomic_t<hb_varc_scratch_t *> cached_scratch;
+  };
+
+  bool has_data () const { return version.major != 0; }
+
   protected:
   FixedVersion<> version; /* Version identifier */
   Offset32To<Coverage> coverage;
@@ -184,6 +251,10 @@ struct VARC
   DEFINE_SIZE_STATIC (24);
 };
 
+struct VARC_accelerator_t : VARC::accelerator_t {
+  VARC_accelerator_t (hb_face_t *face) : VARC::accelerator_t (face) {}
+};
+
 #endif
 
 //}

src/OT/Var/VARC/coord-setter.hh

@@ -11,22 +11,48 @@ namespace OT {
 
 struct coord_setter_t
 {
-  coord_setter_t (hb_array_t<const int> coords) :
-    coords (coords) {}
+  coord_setter_t (hb_array_t<const int> coords_)
+  {
+    length = coords_.length;
+    if (length <= ARRAY_LENGTH (static_coords))
+      hb_memcpy (static_coords, coords_.arrayZ, length * sizeof (int));
+    else
+      dynamic_coords.extend (coords_);
+  }
 
   int& operator [] (unsigned idx)
   {
     if (unlikely (idx >= HB_VAR_COMPOSITE_MAX_AXES))
       return Crap(int);
-    if (coords.length < idx + 1)
-      coords.resize (idx + 1);
-    return coords[idx];
+
+    if (length <= ARRAY_LENGTH (static_coords))
+    {
+      if (idx < ARRAY_LENGTH (static_coords))
+      {
+        while (length <= idx)
+	  static_coords[length++] = 0;
+	return static_coords[idx];
+      }
+      else
+        dynamic_coords.extend (hb_array (static_coords, length));
+    }
+
+    if (dynamic_coords.length <= idx)
+    {
+      if (unlikely (!dynamic_coords.resize (idx + 1)))
+	return Crap(int);
+      length = idx + 1;
+    }
+    return dynamic_coords.arrayZ[idx];
   }
 
   hb_array_t<int> get_coords ()
-  { return coords.as_array (); }
+  { return length <= ARRAY_LENGTH (static_coords) ? hb_array (static_coords, length) : dynamic_coords.as_array (); }
 
-  hb_vector_t<int> coords;
+  private:
+  hb_vector_t<int> dynamic_coords;
+  unsigned length;
+  int static_coords[sizeof (void *) * 8];
 };
 
 

src/OT/glyf/CompositeGlyph.hh

@@ -143,7 +143,7 @@ struct CompositeGlyphRecord
     float matrix[4];
     contour_point_t trans;
     get_transformation (matrix, trans);
-    if (unlikely (!points.alloc (points.length + 4))) return false; // For phantom points
+    if (unlikely (!points.alloc (points.length + 1 + 4))) return false; // For phantom points
     points.push (trans);
     return true;
   }

src/OT/glyf/Glyph.hh

@@ -251,7 +251,8 @@ struct Glyph
       composite_contours_p = nullptr;
     }
 
-    if (!get_points (font, glyf, all_points, &points_with_deltas, head_maxp_info_p, composite_contours_p, false, false))
+    hb_glyf_scratch_t scratch;
+    if (!get_points (font, glyf, all_points, scratch, &points_with_deltas, head_maxp_info_p, composite_contours_p, false, false))
       return false;
 
     // .notdef, set type to empty so we only update metrics and don't compile bytes for
@@ -305,6 +306,7 @@ struct Glyph
   template <typename accelerator_t>
   bool get_points (hb_font_t *font, const accelerator_t &glyf_accelerator,
 		   contour_point_vector_t &all_points /* OUT */,
+		   hb_glyf_scratch_t &scratch,
 		   contour_point_vector_t *points_with_deltas = nullptr, /* OUT */
 		   head_maxp_info_t * head_maxp_info = nullptr, /* OUT */
 		   unsigned *composite_contours = nullptr, /* OUT */
@@ -312,7 +314,6 @@ struct Glyph
 		   bool use_my_metrics = true,
 		   bool phantom_only = false,
 		   hb_array_t<const int> coords = hb_array_t<const int> (),
-		   hb_map_t *current_glyphs = nullptr,
 		   unsigned int depth = 0,
 		   unsigned *edge_count = nullptr) const
   {
@@ -322,10 +323,6 @@ struct Glyph
     if (unlikely (*edge_count > HB_MAX_GRAPH_EDGE_COUNT)) return false;
     (*edge_count)++;
 
-    hb_map_t current_glyphs_stack;
-    if (current_glyphs == nullptr)
-      current_glyphs = &current_glyphs_stack;
-
     if (head_maxp_info)
     {
       head_maxp_info->maxComponentDepth = hb_max (head_maxp_info->maxComponentDepth, depth);
@@ -334,8 +331,7 @@ struct Glyph
     if (!coords)
       coords = hb_array (font->coords, font->num_coords);
 
-    contour_point_vector_t stack_points;
-    contour_point_vector_t &points = type == SIMPLE ? all_points : stack_points;
+    contour_point_vector_t &points = type == SIMPLE ? all_points : scratch.comp_points;
     unsigned old_length = points.length;
 
     switch (type) {
@@ -388,36 +384,53 @@ struct Glyph
 
 #ifndef HB_NO_VAR
     if (coords)
-      glyf_accelerator.gvar->apply_deltas_to_points (gid,
-						     coords,
-						     points.as_array ().sub_array (old_length),
-						     phantom_only && type == SIMPLE);
+    {
+#ifndef HB_NO_BEYOND_64K
+      if (glyf_accelerator.GVAR->has_data ())
+	glyf_accelerator.GVAR->apply_deltas_to_points (gid,
+						       coords,
+						       points.as_array ().sub_array (old_length),
+						       scratch,
+						       phantom_only && type == SIMPLE);
+      else
+#endif
+	glyf_accelerator.gvar->apply_deltas_to_points (gid,
+						       coords,
+						       points.as_array ().sub_array (old_length),
+						       scratch,
+						       phantom_only && type == SIMPLE);
+    }
 #endif
 
     // mainly used by CompositeGlyph calculating new X/Y offset value so no need to extend it
     // with child glyphs' points
     if (points_with_deltas != nullptr && depth == 0 && type == COMPOSITE)
     {
-      if (unlikely (!points_with_deltas->resize (points.length))) return false;
+      assert (old_length == 0);
       *points_with_deltas = points;
     }
 
+    float shift = 0;
     switch (type) {
     case SIMPLE:
       if (depth == 0 && head_maxp_info)
         head_maxp_info->maxPoints = hb_max (head_maxp_info->maxPoints, all_points.length - old_length - 4);
+      shift = phantoms[PHANTOM_LEFT].x;
       break;
     case COMPOSITE:
     {
+      hb_decycler_node_t decycler_node (scratch.decycler);
+
       unsigned int comp_index = 0;
       for (auto &item : get_composite_iterator ())
       {
 	hb_codepoint_t item_gid = item.get_gid ();
 
-        if (unlikely (current_glyphs->has (item_gid)))
+        if (unlikely (!decycler_node.visit (item_gid)))
+	{
+	  comp_index++;
 	  continue;
-
-	current_glyphs->add (item_gid);
+	}
 
 	unsigned old_count = all_points.length;
 
@@ -426,6 +439,7 @@ struct Glyph
 				       .get_points (font,
 						    glyf_accelerator,
 						    all_points,
+						    scratch,
 						    points_with_deltas,
 						    head_maxp_info,
 						    composite_contours,
@@ -433,14 +447,16 @@ struct Glyph
 						    use_my_metrics,
 						    phantom_only,
 						    coords,
-						    current_glyphs,
 						    depth + 1,
 						    edge_count)))
 	{
-	  current_glyphs->del (item_gid);
+	  points.resize (old_length);
 	  return false;
 	}
 
+	// points might have been reallocated. Relocate phantoms.
+	phantoms = points.as_array ().sub_array (points.length - PHANTOM_COUNT, PHANTOM_COUNT);
+
 	auto comp_points = all_points.as_array ().sub_array (old_count);
 
 	/* Copy phantom points from component if USE_MY_METRICS flag set */
@@ -455,7 +471,7 @@ struct Glyph
 	  item.get_transformation (matrix, default_trans);
 
 	  /* Apply component transformation & translation (with deltas applied) */
-	  item.transform_points (comp_points, matrix, points[comp_index]);
+	  item.transform_points (comp_points, matrix, points[old_length + comp_index]);
 	}
 
 	if (item.is_anchored () && !phantom_only)
@@ -476,12 +492,11 @@ struct Glyph
 
 	if (all_points.length > HB_GLYF_MAX_POINTS)
 	{
-	  current_glyphs->del (item_gid);
+	  points.resize (old_length);
 	  return false;
 	}
 
 	comp_index++;
-        current_glyphs->del (item_gid);
       }
 
       if (head_maxp_info && depth == 0)
@@ -492,9 +507,13 @@ struct Glyph
         head_maxp_info->maxComponentElements = hb_max (head_maxp_info->maxComponentElements, comp_index);
       }
       all_points.extend (phantoms);
+      shift = phantoms[PHANTOM_LEFT].x;
+      points.resize (old_length);
     } break;
     case EMPTY:
       all_points.extend (phantoms);
+      shift = phantoms[PHANTOM_LEFT].x;
+      points.resize (old_length);
       break;
     }
 
@@ -503,10 +522,9 @@ struct Glyph
       /* Undocumented rasterizer behavior:
        * Shift points horizontally by the updated left side bearing
        */
-      float v = -phantoms[PHANTOM_LEFT].x;
-      if (v)
+      if (shift)
         for (auto &point : all_points)
-	  point.x += v;
+	  point.x -= shift;
     }
 
     return !all_points.in_error ();

src/OT/glyf/SimpleGlyph.hh

@@ -127,19 +127,20 @@ struct SimpleGlyph
 			  hb_array_t<contour_point_t> points_ /* IN/OUT */,
 			  const HBUINT8 *end)
   {
+    auto *points = points_.arrayZ;
     unsigned count = points_.length;
     for (unsigned int i = 0; i < count;)
     {
       if (unlikely (p + 1 > end)) return false;
       uint8_t flag = *p++;
-      points_.arrayZ[i++].flag = flag;
+      points[i++].flag = flag;
       if (flag & FLAG_REPEAT)
       {
 	if (unlikely (p + 1 > end)) return false;
 	unsigned int repeat_count = *p++;
 	unsigned stop = hb_min (i + repeat_count, count);
 	for (; i < stop; i++)
-	  points_.arrayZ[i].flag = flag;
+	  points[i].flag = flag;
       }
     }
     return true;
@@ -160,10 +161,7 @@ struct SimpleGlyph
       if (flag & short_flag)
       {
 	if (unlikely (p + 1 > end)) return false;
-	if (flag & same_flag)
-	  v += *p++;
-	else
-	  v -= *p++;
+	v += (bool(flag & same_flag) * 2 - 1) * *p++;
       }
       else
       {
@@ -190,7 +188,7 @@ struct SimpleGlyph
     unsigned int num_points = endPtsOfContours[num_contours - 1] + 1;
 
     unsigned old_length = points.length;
-    points.alloc (points.length + num_points + 4, true); // Allocate for phantom points, to avoid a possible copy
+    points.alloc (points.length + num_points + 4); // Allocate for phantom points, to avoid a possible copy
     if (unlikely (!points.resize (points.length + num_points, false))) return false;
     auto points_ = points.as_array ().sub_array (old_length);
     if (!phantom_only)
@@ -281,9 +279,9 @@ struct SimpleGlyph
     unsigned num_points = all_points.length - 4;
 
     hb_vector_t<uint8_t> flags, x_coords, y_coords;
-    if (unlikely (!flags.alloc (num_points, true))) return false;
-    if (unlikely (!x_coords.alloc (2*num_points, true))) return false;
-    if (unlikely (!y_coords.alloc (2*num_points, true))) return false;
+    if (unlikely (!flags.alloc_exact (num_points))) return false;
+    if (unlikely (!x_coords.alloc_exact (2*num_points))) return false;
+    if (unlikely (!y_coords.alloc_exact (2*num_points))) return false;
 
     unsigned lastflag = 255, repeat = 0;
     int prev_x = 0, prev_y = 0;

src/OT/glyf/glyf.hh

@@ -94,7 +94,7 @@ struct glyf
     }
 
     hb_vector_t<unsigned> padded_offsets;
-    if (unlikely (!padded_offsets.alloc (c->plan->new_to_old_gid_list.length, true)))
+    if (unlikely (!padded_offsets.alloc_exact (c->plan->new_to_old_gid_list.length)))
       return_trace (false);
 
     hb_vector_t<glyf_impl::SubsetGlyph> glyphs;
@@ -172,6 +172,9 @@ struct glyf_accelerator_t
     glyf_table = nullptr;
 #ifndef HB_NO_VAR
     gvar = nullptr;
+#ifndef HB_NO_BEYOND_64K
+    GVAR = nullptr;
+#endif
 #endif
     hmtx = nullptr;
 #ifndef HB_NO_VERTICAL
@@ -187,6 +190,9 @@ struct glyf_accelerator_t
     glyf_table = hb_sanitize_context_t ().reference_table<glyf> (face);
 #ifndef HB_NO_VAR
     gvar = face->table.gvar;
+#ifndef HB_NO_BEYOND_64K
+    GVAR = face->table.GVAR;
+#endif
 #endif
     hmtx = face->table.hmtx;
 #ifndef HB_NO_VERTICAL
@@ -198,6 +204,13 @@ struct glyf_accelerator_t
   }
   ~glyf_accelerator_t ()
   {
+    auto *scratch = cached_scratch.get_relaxed ();
+    if (scratch)
+    {
+      scratch->~hb_glyf_scratch_t ();
+      hb_free (scratch);
+    }
+
     glyf_table.destroy ();
   }
 
@@ -206,21 +219,16 @@ struct glyf_accelerator_t
   protected:
   template<typename T>
   bool get_points (hb_font_t *font, hb_codepoint_t gid, T consumer,
-		   hb_array_t<const int> coords = hb_array_t<const int> ()) const
+		   hb_array_t<const int> coords,
+		   hb_glyf_scratch_t &scratch) const
   {
-    if (!coords)
-      coords = hb_array (font->coords, font->num_coords);
-
     if (gid >= num_glyphs) return false;
 
-    /* Making this allocfree is not that easy
-       https://github.com/harfbuzz/harfbuzz/issues/2095
-       mostly because of gvar handling in VF fonts,
-       perhaps a separate path for non-VF fonts can be considered */
-    contour_point_vector_t all_points;
+    auto &all_points = scratch.all_points;
+    all_points.resize (0);
 
     bool phantom_only = !consumer.is_consuming_contour_points ();
-    if (unlikely (!glyph_for_gid (gid).get_points (font, *this, all_points, nullptr, nullptr, nullptr, true, true, phantom_only, coords)))
+    if (unlikely (!glyph_for_gid (gid).get_points (font, *this, all_points, scratch, nullptr, nullptr, nullptr, true, true, phantom_only, coords)))
       return false;
 
     unsigned count = all_points.length;
@@ -229,8 +237,61 @@ struct glyf_accelerator_t
 
     if (consumer.is_consuming_contour_points ())
     {
-      for (auto &point : all_points.as_array ().sub_array (0, count))
-	consumer.consume_point (point);
+      auto *points = all_points.arrayZ;
+
+      if (false)
+      {
+	/* Our path-builder was designed to work with this simple loop.
+	 * But FreeType and CoreText do it differently, so we match those
+	 * with the other, more complicated, code branch below. */
+	for (unsigned i = 0; i < count; i++)
+	{
+	  consumer.consume_point (points[i]);
+	  if (points[i].is_end_point)
+	    consumer.contour_end ();
+	}
+      }
+      else
+      {
+	for (unsigned i = 0; i < count; i++)
+	{
+	  // Start of a contour.
+	  if (points[i].flag & glyf_impl::SimpleGlyph::FLAG_ON_CURVE)
+	  {
+	    // First point is on-curve. Draw the contour.
+	    for (; i < count; i++)
+	    {
+	      consumer.consume_point (points[i]);
+	      if (points[i].is_end_point)
+	      {
+		consumer.contour_end ();
+		break;
+	      }
+	    }
+	  }
+	  else
+	  {
+	    unsigned start = i;
+
+	    // Find end of the contour.
+	    for (; i < count; i++)
+	      if (points[i].is_end_point)
+		break;
+
+	    unsigned end = i;
+
+	    // Enough to start from the end. Our path-builder takes care of the rest.
+	    if (likely (end < count)) // Can only fail in case of alloc failure *maybe*.
+	      consumer.consume_point (points[end]);
+
+	    for (i = start; i < end; i++)
+	      consumer.consume_point (points[i]);
+
+	    consumer.contour_end ();
+	  }
+	}
+      }
+
       consumer.points_end ();
     }
 
@@ -303,6 +364,7 @@ struct glyf_accelerator_t
 
     HB_ALWAYS_INLINE
     void consume_point (const contour_point_t &point) { bounds.add (point); }
+    void contour_end () {}
     void points_end () { bounds.get_extents (font, extents, scaled); }
 
     bool is_consuming_contour_points () { return extents; }
@@ -318,7 +380,12 @@ struct glyf_accelerator_t
 
     contour_point_t phantoms[glyf_impl::PHANTOM_COUNT];
     if (font->num_coords)
-      success = get_points (font, gid, points_aggregator_t (font, nullptr, phantoms, false));
+    {
+      hb_glyf_scratch_t scratch;
+      success = get_points (font, gid, points_aggregator_t (font, nullptr, phantoms, false),
+			    hb_array (font->coords, font->num_coords),
+			    scratch);
+    }
 
     if (unlikely (!success))
       return
@@ -338,9 +405,11 @@ struct glyf_accelerator_t
     if (unlikely (gid >= num_glyphs)) return false;
 
     hb_glyph_extents_t extents;
-
+    hb_glyf_scratch_t scratch;
     contour_point_t phantoms[glyf_impl::PHANTOM_COUNT];
-    if (unlikely (!get_points (font, gid, points_aggregator_t (font, &extents, phantoms, false))))
+    if (unlikely (!get_points (font, gid, points_aggregator_t (font, &extents, phantoms, false),
+			       hb_array (font->coords, font->num_coords),
+			       scratch)))
       return false;
 
     *lsb = is_vertical
@@ -360,26 +429,33 @@ struct glyf_accelerator_t
   }
 
   public:
-  bool get_extents (hb_font_t *font, hb_codepoint_t gid, hb_glyph_extents_t *extents) const
+
+  bool get_extents (hb_font_t *font,
+		    hb_codepoint_t gid,
+		    hb_glyph_extents_t *extents) const
+  { return get_extents_at (font, gid, extents, hb_array (font->coords, font->num_coords)); }
+
+  bool get_extents_at (hb_font_t *font,
+		       hb_codepoint_t gid,
+		       hb_glyph_extents_t *extents,
+		       hb_array_t<const int> coords) const
   {
     if (unlikely (gid >= num_glyphs)) return false;
 
 #ifndef HB_NO_VAR
-    if (font->num_coords)
-      return get_points (font, gid, points_aggregator_t (font, extents, nullptr, true));
+    if (coords)
+    {
+      hb_glyf_scratch_t scratch;
+      return get_points (font,
+			 gid,
+			 points_aggregator_t (font, extents, nullptr, true),
+			 coords,
+			 scratch);
+    }
 #endif
     return glyph_for_gid (gid).get_extents_without_var_scaled (font, *this, extents);
   }
 
-  bool paint_glyph (hb_font_t *font, hb_codepoint_t gid, hb_paint_funcs_t *funcs, void *data, hb_color_t foreground) const
-  {
-    funcs->push_clip_glyph (data, gid, font);
-    funcs->color (data, true, foreground);
-    funcs->pop_clip (data);
-
-    return true;
-  }
-
   const glyf_impl::Glyph
   glyph_for_gid (hb_codepoint_t gid, bool needs_padding_removal = false) const
   {
@@ -410,15 +486,52 @@ struct glyf_accelerator_t
 
   bool
   get_path (hb_font_t *font, hb_codepoint_t gid, hb_draw_session_t &draw_session) const
-  { return get_points (font, gid, glyf_impl::path_builder_t (font, draw_session)); }
+  {
+    if (!has_data ()) return false;
+
+    hb_glyf_scratch_t *scratch;
+
+    // Borrow the cached strach buffer.
+    {
+      scratch = cached_scratch.get_acquire ();
+      if (!scratch || unlikely (!cached_scratch.cmpexch (scratch, nullptr)))
+      {
+	scratch = (hb_glyf_scratch_t *) hb_calloc (1, sizeof (hb_glyf_scratch_t));
+	if (unlikely (!scratch))
+	  return true;
+      }
+    }
+
+    bool ret = get_points (font, gid, glyf_impl::path_builder_t (font, draw_session),
+			   hb_array (font->coords, font->num_coords),
+			   *scratch);
+
+    // Put it back.
+    if (!cached_scratch.cmpexch (nullptr, scratch))
+    {
+      scratch->~hb_glyf_scratch_t ();
+      hb_free (scratch);
+    }
+
+    return ret;
+  }
 
   bool
   get_path_at (hb_font_t *font, hb_codepoint_t gid, hb_draw_session_t &draw_session,
-	       hb_array_t<const int> coords) const
-  { return get_points (font, gid, glyf_impl::path_builder_t (font, draw_session), coords); }
+	       hb_array_t<const int> coords,
+	       hb_glyf_scratch_t &scratch) const
+  {
+    if (!has_data ()) return false;
+    return get_points (font, gid, glyf_impl::path_builder_t (font, draw_session),
+		       coords,
+		       scratch);
+  }
 
 #ifndef HB_NO_VAR
   const gvar_accelerator_t *gvar;
+#ifndef HB_NO_BEYOND_64K
+  const GVAR_accelerator_t *GVAR;
+#endif
 #endif
   const hmtx_accelerator_t *hmtx;
 #ifndef HB_NO_VERTICAL
@@ -430,6 +543,7 @@ struct glyf_accelerator_t
   unsigned int num_glyphs;
   hb_blob_ptr_t<loca> loca_table;
   hb_blob_ptr_t<glyf> glyf_table;
+  hb_atomic_t<hb_glyf_scratch_t *> cached_scratch;
 };
 
 
@@ -439,7 +553,7 @@ glyf::_populate_subset_glyphs (const hb_subset_plan_t   *plan,
 			       hb_vector_t<glyf_impl::SubsetGlyph>& glyphs /* OUT */) const
 {
   OT::glyf_accelerator_t glyf (plan->source);
-  if (!glyphs.alloc (plan->new_to_old_gid_list.length, true)) return false;
+  if (!glyphs.alloc_exact (plan->new_to_old_gid_list.length)) return false;
 
   for (const auto &pair : plan->new_to_old_gid_list)
   {

src/OT/glyf/path-builder.hh

@@ -42,7 +42,7 @@ struct path_builder_t
   {
     bool is_on_curve = point.flag & glyf_impl::SimpleGlyph::FLAG_ON_CURVE;
 #ifdef HB_NO_CUBIC_GLYF
-    bool is_cubic = false;
+    constexpr bool is_cubic = false;
 #else
     bool is_cubic = !is_on_curve && (point.flag & glyf_impl::SimpleGlyph::FLAG_CUBIC);
 #endif
@@ -124,58 +124,60 @@ struct path_builder_t
       }
     }
 
-    if (unlikely (point.is_end_point))
-    {
-      if (first_offcurve && last_offcurve)
-      {
-	optional_point_t mid = last_offcurve.mid (first_offcurve2 ?
-						  first_offcurve2 :
-						  first_offcurve);
-	if (last_offcurve2)
-	  draw_session->cubic_to (last_offcurve2.x, last_offcurve2.y,
-				  last_offcurve.x, last_offcurve.y,
-				  mid.x, mid.y);
-	else
-	  draw_session->quadratic_to (last_offcurve.x, last_offcurve.y,
-				     mid.x, mid.y);
-	last_offcurve = optional_point_t ();
-      }
-      /* now check the rest */
-
-      if (first_offcurve && first_oncurve)
-      {
-        if (first_offcurve2)
-	  draw_session->cubic_to (first_offcurve2.x, first_offcurve2.y,
-				  first_offcurve.x, first_offcurve.y,
-				  first_oncurve.x, first_oncurve.y);
-	else
-	  draw_session->quadratic_to (first_offcurve.x, first_offcurve.y,
-				     first_oncurve.x, first_oncurve.y);
-      }
-      else if (last_offcurve && first_oncurve)
-      {
-	if (last_offcurve2)
-	  draw_session->cubic_to (last_offcurve2.x, last_offcurve2.y,
-				  last_offcurve.x, last_offcurve.y,
-				  first_oncurve.x, first_oncurve.y);
-	else
-	  draw_session->quadratic_to (last_offcurve.x, last_offcurve.y,
-				     first_oncurve.x, first_oncurve.y);
-      }
-      else if (first_oncurve)
-	draw_session->line_to (first_oncurve.x, first_oncurve.y);
-      else if (first_offcurve)
-      {
-	float x = first_offcurve.x, y = first_offcurve.y;
-	draw_session->move_to (x, y);
-	draw_session->quadratic_to (x, y, x, y);
-      }
-
-      /* Getting ready for the next contour */
-      first_oncurve = first_offcurve = last_offcurve = last_offcurve2 = optional_point_t ();
-      draw_session->close_path ();
-    }
   }
+
+  void contour_end ()
+  {
+    if (first_offcurve && last_offcurve)
+    {
+      optional_point_t mid = last_offcurve.mid (first_offcurve2 ?
+						first_offcurve2 :
+						first_offcurve);
+      if (last_offcurve2)
+	draw_session->cubic_to (last_offcurve2.x, last_offcurve2.y,
+				last_offcurve.x, last_offcurve.y,
+				mid.x, mid.y);
+      else
+	draw_session->quadratic_to (last_offcurve.x, last_offcurve.y,
+				   mid.x, mid.y);
+      last_offcurve = optional_point_t ();
+    }
+    /* now check the rest */
+
+    if (first_offcurve && first_oncurve)
+    {
+      if (first_offcurve2)
+	draw_session->cubic_to (first_offcurve2.x, first_offcurve2.y,
+				first_offcurve.x, first_offcurve.y,
+				first_oncurve.x, first_oncurve.y);
+      else
+	draw_session->quadratic_to (first_offcurve.x, first_offcurve.y,
+				   first_oncurve.x, first_oncurve.y);
+    }
+    else if (last_offcurve && first_oncurve)
+    {
+      if (last_offcurve2)
+	draw_session->cubic_to (last_offcurve2.x, last_offcurve2.y,
+				last_offcurve.x, last_offcurve.y,
+				first_oncurve.x, first_oncurve.y);
+      else
+	draw_session->quadratic_to (last_offcurve.x, last_offcurve.y,
+				   first_oncurve.x, first_oncurve.y);
+    }
+    else if (first_oncurve)
+      draw_session->line_to (first_oncurve.x, first_oncurve.y);
+    else if (first_offcurve)
+    {
+      float x = first_offcurve.x, y = first_offcurve.y;
+      draw_session->move_to (x, y);
+      draw_session->quadratic_to (x, y, x, y);
+    }
+
+    /* Getting ready for the next contour */
+    first_oncurve = first_offcurve = last_offcurve = last_offcurve2 = optional_point_t ();
+    draw_session->close_path ();
+  }
+
   void points_end () {}
 
   bool is_consuming_contour_points () { return true; }

src/OT/name/name.hh

@@ -163,7 +163,7 @@ struct NameRecord
       if (platformID != 1)
       {
         unsigned text_size = hb_ot_name_convert_utf<hb_utf8_t, hb_utf16_be_t> (*name_bytes, nullptr, nullptr);
-  
+
         text_size++; // needs to consider NULL terminator for use in hb_ot_name_convert_utf()
         unsigned byte_len = text_size * hb_utf16_be_t::codepoint_t::static_size;
         name_str_utf16_be = (char *) hb_calloc (byte_len, 1);
@@ -174,14 +174,14 @@ struct NameRecord
         }
         hb_ot_name_convert_utf<hb_utf8_t, hb_utf16_be_t> (*name_bytes, &text_size,
                                                           (hb_utf16_be_t::codepoint_t *) name_str_utf16_be);
-  
+
         unsigned encoded_byte_len = text_size * hb_utf16_be_t::codepoint_t::static_size;
         if (!encoded_byte_len || !c->check_assign (out->length, encoded_byte_len, HB_SERIALIZE_ERROR_INT_OVERFLOW)) {
           c->revert (snap);
           hb_free (name_str_utf16_be);
           return_trace (nullptr);
         }
-  
+
         encoded_bytes = hb_bytes_t (name_str_utf16_be, encoded_byte_len);
       }
       else
@@ -392,7 +392,7 @@ struct name
     const hb_hashmap_t<hb_ot_name_record_ids_t, hb_bytes_t> *name_table_overrides =
         &c->plan->name_table_overrides;
 #endif
-    
+
     auto it =
     + nameRecordZ.as_array (count)
     | hb_filter (c->plan->name_ids, &NameRecord::nameID)
@@ -485,7 +485,7 @@ struct name
       const hb_array_t<const NameRecord> all_names (this->table->nameRecordZ.arrayZ,
 						    this->table->count);
 
-      this->names.alloc (all_names.length, true);
+      this->names.alloc_exact (all_names.length);
 
       for (unsigned int i = 0; i < all_names.length; i++)
       {

src/addTable.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 import sys
 from fontTools.ttLib import TTFont
 from fontTools.ttLib.tables.DefaultTable import DefaultTable

src/check-static-inits.py

@@ -22,30 +22,30 @@ if not OBJS:
 stat = 0
 tested = 0
 
-for obj in OBJS:
-	result = subprocess.run(objdump.split () + ['-t', obj], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+result = subprocess.run(objdump.split () + ['-t'] + OBJS, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 
-	if result.returncode:
-		if result.stderr.find (b'not recognized') != -1:
-			# https://github.com/harfbuzz/harfbuzz/issues/3019
-			print ('objdump %s returned "not recognized", skipping' % obj)
-			continue
-		print ('objdump %s returned error:\n%s' % (obj, result.stderr.decode ('utf-8')))
-		stat = 2
+if result.returncode:
+    if result.stderr.find (b'not recognized') != -1:
+        # https://github.com/harfbuzz/harfbuzz/issues/3019
+        print ('objdump %s returned "not recognized", skipping')
+    else:
+        print ('objdump returned error:\n%s' % (result.stderr.decode ('utf-8')))
+        stat = 2
+else:
+    tested = 1
 
-	result = result.stdout.decode ('utf-8')
+result = result.stdout.decode ('utf-8')
 
-	# Checking that no object file has static initializers
-	for l in re.findall (r'^.*\.[cd]tors.*$', result, re.MULTILINE):
-		if not re.match (r'.*\b0+\b', l):
-			print ('Ouch, %s has static initializers/finalizers' % obj)
-			stat = 1
+# Checking that no object file has static initializers
+for l in re.findall (r'^.*\.[cd]tors.*$', result, re.MULTILINE):
+    if not re.match (r'.*\b0+\b', l):
+        print ('Ouch, library has static initializers/finalizers')
+        stat = 1
 
-	# Checking that no object file has lazy static C++ constructors/destructors or other such stuff
-	if ('__cxa_' in result) and ('__ubsan_handle' not in result):
-		print ('Ouch, %s has lazy static C++ constructors/destructors or other such stuff' % obj)
-		stat = 1
+# Checking that no object file has lazy static C++ constructors/destructors or other such stuff
+if ('__cxa_' in result) and ('__ubsan_handle' not in result):
+    print ('Ouch, library has lazy static C++ constructors/destructors or other such stuff')
+    stat = 1
 
-	tested += 1
 
 sys.exit (stat if tested else 77)

src/check-symbols.py

@@ -7,18 +7,27 @@ os.environ['LC_ALL'] = 'C' # otherwise 'nm' prints in wrong order
 builddir = os.getenv ('builddir', os.path.dirname (__file__))
 libs = os.getenv ('libs', '.libs')
 
-IGNORED_SYMBOLS = '|'.join(['_fini', '_init', '_fdata', '_ftext', '_fbss',
+IGNORED_SYMBOLS = ['_fini', '_init', '_fdata', '_ftext', '_fbss',
 	'__bss_start', '__bss_start__', '__bss_end__', '_edata', '_end', '_bss_end__',
 	'__end__', '__gcov_.*', 'llvm_.*', 'flush_fn_list', 'writeout_fn_list', 'mangle_path',
-	'lprofDirMode', 'reset_fn_list'])
+	'lprofDirMode', 'reset_fn_list']
+
+# Rust
+IGNORED_SYMBOLS += [
+    'rust_eh_personality',
+    '_ZN3std9panicking11EMPTY_PANIC.*', # 'std::panicking::EMPTY_PANIC::.*'
+    '_ZN3std3sys3pal4unix4args3imp15ARGV_INIT_ARRAY.*', # 'std::sys::pal::unix::args::imp::ARGV_INIT_ARRAY::.*'
+    '_ZN3std3sys4args4unix3imp15ARGV_INIT_ARRAY.*', # std::sys::args::unix::imp::ARGV_INIT_ARRAY::.*
+    '_ZN17compiler_builtins4math4libm7generic4sqrt9RSQRT_TAB.*', # 'compiler_builtins::math::libm::generic::sqrt::RSQRT_TAB::.*'
+]
+
+IGNORED_SYMBOLS = '|'.join (IGNORED_SYMBOLS)
 
 nm = os.getenv ('NM', shutil.which ('nm'))
 if not nm:
 	print ('check-symbols.py: \'nm\' not found; skipping test')
 	sys.exit (77)
 
-cxxfilt = shutil.which ('c++filt')
-
 tested = False
 stat = 0
 
@@ -34,12 +43,6 @@ for soname in ['harfbuzz', 'harfbuzz-subset', 'harfbuzz-icu', 'harfbuzz-gobject'
 				    for s in re.findall (r'^.+ [BCDGIRSTu] .+$', subprocess.check_output (nm.split() + [so]).decode ('utf-8'), re.MULTILINE)
 				    if not re.match (r'.* %s(%s)\b' % (symprefix, IGNORED_SYMBOLS), s)]
 
-		# run again c++filt also if is available
-		if cxxfilt:
-			EXPORTED_SYMBOLS = subprocess.check_output (
-				[cxxfilt], input='\n'.join (EXPORTED_SYMBOLS).encode ()
-			).decode ('utf-8').splitlines ()
-
 		prefix = (symprefix + os.path.basename (so)).replace ('libharfbuzz', 'hb').replace ('-', '_').split ('.')[0]
 
 		print ('Checking that %s does not expose internal symbols' % so)

src/fontations/Cargo.lock

@@ -0,0 +1,95 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 4
+
+[[package]]
+name = "bytemuck"
+version = "1.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6b1fc10dbac614ebc03540c9dbd60e83887fda27794998c6528f1782047d540"
+dependencies = [
+ "bytemuck_derive",
+]
+
+[[package]]
+name = "bytemuck_derive"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3fa76293b4f7bb636ab88fd78228235b5248b4d05cc589aed610f954af5d7c7a"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "font-types"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d868ec188a98bb014c606072edd47e52e7ab7297db943b0b28503121e1d037bd"
+dependencies = [
+ "bytemuck",
+]
+
+[[package]]
+name = "harfbuzz_fontations"
+version = "0.0.0"
+dependencies = [
+ "read-fonts",
+ "skrifa",
+]
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.94"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a31971752e70b8b2686d7e46ec17fb38dad4051d94024c88df49b667caea9c84"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.39"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1f1914ce909e1658d9907913b4b91947430c7d9be598b15a1912935b8c04801"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "read-fonts"
+version = "0.27.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f14974c88fb4fd0a7203719f98020209248c9dbebaf9d10d860337797a905097"
+dependencies = [
+ "bytemuck",
+ "font-types",
+]
+
+[[package]]
+name = "skrifa"
+version = "0.29.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7c0ca53de9bb9bee1720c727606275148463cd938eb6bde249dcedeec4967747"
+dependencies = [
+ "bytemuck",
+ "read-fonts",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.99"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e02e925281e18ffd9d640e234264753c43edc62d64b2d4cf898f1bc5e75f3fc2"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"

src/fontations/Cargo.toml

@@ -0,0 +1,28 @@
+[package]
+name = "harfbuzz_fontations"
+edition = "2021"
+
+[dependencies]
+read-fonts = "0.27"
+skrifa = "0.29.2"
+
+[lib]
+name = "harfbuzz_fontations"
+path = "lib.rs"
+crate-type = ["staticlib"]
+
+[profile.release]
+strip = true
+lto = "fat"
+panic = "abort"
+overflow-checks = false
+codegen-units = 1
+
+[profile.debugoptimized]
+inherits = "release"
+debug = true
+codegen-units = 16
+strip = false
+
+[profile.dev]
+lto = "fat"

src/fontations/meson.build

@@ -0,0 +1,105 @@
+rust = import('unstable-rust')
+
+hb_rs = rust.bindgen(
+  input : '../hb.h',
+  output : 'hb.rs',
+  include_directories: incsrc,
+  args : ['--allowlist-function=hb_.*',
+          '--allowlist-type=hb_.*',
+          '--no-copy=hb_.*',
+          ],
+)
+
+cargo = find_program('cargo')
+rustfmt = find_program('rustfmt')
+
+rust_flags = ''
+cargo_args = [
+  '--package', 'harfbuzz_fontations',
+  '--lib',
+  '--target-dir', meson.current_build_dir(),
+  '--manifest-path', meson.current_source_dir() / 'Cargo.toml',
+  '-Z', 'build-std=std,panic_abort',
+  '-Z', 'build-std-features=panic_immediate_abort',
+]
+
+buildtype = get_option('buildtype')
+if buildtype == 'release' or buildtype == 'debugoptimized'
+  cargo_args += ['--profile', buildtype]
+endif
+
+opt_level = get_option('optimization')
+rust_flags += ' -C opt-level=' + opt_level
+
+harfbuzz_fontations = custom_target(
+  'harfbuzz_fontations',
+  input: ['lib.rs', 'Cargo.toml', 'Cargo.lock'],
+  output: ['libharfbuzz_fontations.a'],
+  depends: [hb_rs],
+  env: ['OUT_DIR=' + meson.current_build_dir(),
+        'RUSTFLAGS=' + rust_flags,
+  ],
+  command: [
+    cargo, 'build',
+    ] + cargo_args + [
+    '-Z', 'unstable-options',
+    '--artifact-dir', meson.current_build_dir(),
+  ],
+  install: true,
+  install_dir: join_paths(get_option('prefix'), 'lib'),
+)
+
+harfbuzz_fontations_dep = declare_dependency(
+  link_with: harfbuzz_fontations,
+)
+
+clippy_fix = run_target(
+  'clippy-fix',
+  env: ['OUT_DIR=' + meson.current_build_dir()],
+  depends: [hb_rs, harfbuzz_fontations],
+  command: [
+    cargo, 'clippy',
+    ] + cargo_args + [
+    '--allow-dirty', '--fix',
+  ],
+)
+if get_option('tests').enabled() and cargo.found()
+  test(
+    'clippy',
+    cargo,
+    env: ['OUT_DIR=' + meson.current_build_dir()],
+    depends: [hb_rs, harfbuzz_fontations],
+    args: [
+      'clippy',
+      ] + cargo_args + [
+      '--', '-D', 'warnings',
+    ],
+    timeout: 120,
+  )
+endif
+
+rustfmt_fix = run_target(
+  'rustfmt-fix',
+  env: ['OUT_DIR=' + meson.current_build_dir()],
+  depends: [hb_rs],
+  command: [
+    rustfmt,
+    '--edition', '2021',
+    '--',
+    meson.current_source_dir() / 'lib.rs',
+  ],
+)
+if get_option('tests').enabled() and rustfmt.found()
+  test(
+    'rustfmt',
+    rustfmt,
+    env: ['OUT_DIR=' + meson.current_build_dir()],
+    depends: [hb_rs],
+    args: [
+      '--check',
+      '--edition', '2021',
+      '--',
+      meson.current_source_dir() / 'lib.rs',
+    ],
+  )
+endif

src/gen-def.py

@@ -20,8 +20,11 @@ if '--experimental-api' not in sys.argv:
 	# Move these to harfbuzz-sections.txt when got stable
 	experimental_symbols = \
 """hb_shape_justify
-hb_subset_repack_or_fail
 hb_subset_input_override_name_table
+hb_subset_cff_get_charstring_data
+hb_subset_cff_get_charstrings_index
+hb_subset_cff2_get_charstring_data
+hb_subset_cff2_get_charstrings_index
 """.splitlines ()
 	symbols = [x for x in symbols if x not in experimental_symbols]
 symbols = "\n".join (symbols)

src/gen-indic-table.py

@@ -102,6 +102,7 @@ categories = {
     'CM',
     'Symbol',
     'CS',
+    'SMPst',
   ],
   'khmer' : [
     'VAbv',
@@ -435,6 +436,8 @@ defaults = (category_map[defaults[0]], position_map[defaults[1]], defaults[2])
 indic_data = {}
 for k, (cat, pos, block) in combined.items():
   cat = category_map[cat]
+  if cat == 'SM' and pos == 'Not_Applicable':
+    cat = 'SMPst'
   pos = position_map[pos]
   indic_data[k] = (cat, pos, block)
 
@@ -454,7 +457,7 @@ for k, (cat, pos, block) in indic_data.items():
 # Keep in sync with CONSONANT_FLAGS in the shaper
 consonant_categories = ('C', 'CS', 'Ra','CM', 'V', 'PLACEHOLDER', 'DOTTEDCIRCLE')
 matra_categories = ('M', 'MPst')
-smvd_categories = ('SM', 'VD', 'A', 'Symbol')
+smvd_categories = ('SM', 'SMPst', 'VD', 'A', 'Symbol')
 for k, (cat, pos, block) in indic_data.items():
   if cat in consonant_categories:
     pos = 'BASE_C'
@@ -530,6 +533,7 @@ short = [{
 	"Repha":		'Rf',
 	"PLACEHOLDER":		'GB',
 	"DOTTEDCIRCLE":		'DC',
+	"SMPst":		'SP',
 	"VPst":			'VR',
 	"VPre":			'VL',
 	"Robatic":		'Rt',

src/gen-ragel-artifacts.py

@@ -19,7 +19,9 @@ outdir = os.path.dirname (OUTPUT)
 shutil.copy (INPUT, outdir)
 rl = os.path.basename (INPUT)
 hh = rl.replace ('.rl', '.hh')
-subprocess.Popen (ragel.split() + ['-e', '-F1', '-o', hh, rl], cwd=outdir).wait ()
+ret = subprocess.Popen (ragel.split() + ['-e', '-F1', '-o', hh, rl], cwd=outdir).wait ()
+if ret:
+    sys.exit (ret)
 
 # copy it also to src/
 shutil.copyfile (os.path.join (outdir, hh), os.path.join (CURRENT_SOURCE_DIR, hh))

src/gen-tag-table.py

@@ -345,14 +345,18 @@ class OpenTypeRegistryParser (HTMLParser):
 		self.from_bcp_47_uninherited = None
 		# Whether the parser is in a <td> element
 		self._td = False
-		# Whether the parser is after a <br> element within the current <tr> element
-		self._br = False
+		# Whether the parser ignores the rest of the current <td> element
+		self._disengaged = False
 		# The text of the <td> elements of the current <tr> element.
 		self._current_tr = []
 
 	def handle_starttag (self, tag, attrs):
-		if tag == 'br':
-			self._br = True
+		if tag == 'a':
+			if self._current_tr and not self._disengaged:
+				self._current_tr[-1] = ''
+				self._disengaged = True
+		elif tag == 'br':
+			self._disengaged = True
 		elif tag == 'meta':
 			for attr, value in attrs:
 				if attr == 'name' and value == 'updated_at':
@@ -362,12 +366,13 @@ class OpenTypeRegistryParser (HTMLParser):
 			self._td = True
 			self._current_tr.append ('')
 		elif tag == 'tr':
-			self._br = False
+			self._disengaged = False
 			self._current_tr = []
 
 	def handle_endtag (self, tag):
 		if tag == 'td':
 			self._td = False
+			self._disengaged = False
 		elif tag == 'tr' and self._current_tr:
 			expect (2 <= len (self._current_tr) <= 3)
 			name = self._current_tr[0].strip ()
@@ -387,7 +392,7 @@ class OpenTypeRegistryParser (HTMLParser):
 			self.ranks[tag] = rank
 
 	def handle_data (self, data):
-		if self._td and not self._br:
+		if self._td and not self._disengaged:
 			self._current_tr[-1] += data
 
 	def handle_charref (self, name):

src/gen-use-table.py

@@ -109,6 +109,7 @@ property_names = [
 	'Nukta',
 	'Virama',
 	'Pure_Killer',
+	'Reordering_Killer',
 	'Invisible_Stacker',
 	'Vowel_Independent',
 	'Vowel_Dependent',
@@ -263,6 +264,8 @@ def is_OTHER(U, UISC, UDI, UGC, AJT):
 		and not is_SYM_MOD(U, UISC, UDI, UGC, AJT)
 		and not is_Word_Joiner(U, UISC, UDI, UGC, AJT)
 	)
+def is_REORDERING_KILLER(U, UISC, UDI, UGC, AJT):
+	return UISC == Reordering_Killer
 def is_REPHA(U, UISC, UDI, UGC, AJT):
 	return UISC in [Consonant_Preceding_Repha, Consonant_Prefixed]
 def is_SAKOT(U, UISC, UDI, UGC, AJT):
@@ -306,6 +309,7 @@ use_mapping = {
 	'SE':	is_HIEROGLYPH_SEGMENT_END,
 	'ZWNJ':	is_ZWNJ,
 	'O':	is_OTHER,
+	'RK':	is_REORDERING_KILLER,
 	'R':	is_REPHA,
 	'Sk':	is_SAKOT,
 	'SM':	is_SYM_MOD,
@@ -358,6 +362,7 @@ use_positions = {
 		'Pst': [Not_Applicable],
 	},
 	'R': None,
+	'RK': None,
 	'SUB': None,
 }
 

src/gen-vowel-constraints.py

@@ -172,7 +172,7 @@ print ('static void')
 print ('_output_dotted_circle (hb_buffer_t *buffer)')
 print ('{')
 print ('  (void) buffer->output_glyph (0x25CCu);')
-print ('  _hb_glyph_info_reset_continuation (&buffer->prev());')
+print ('  _hb_glyph_info_clear_continuation (&buffer->prev());')
 print ('}')
 print ()
 print ('static void')

src/harfbuzz-config.cmake.in

@@ -2,6 +2,8 @@
 
 set_and_check(HARFBUZZ_INCLUDE_DIR "@PACKAGE_INCLUDE_INSTALL_DIR@")
 
+set(HARFBUZZ_VERSION "@HARFBUZZ_VERSION@")
+
 # Add the libraries.
 add_library(harfbuzz::harfbuzz @HB_LIBRARY_TYPE@ IMPORTED)
 set_target_properties(harfbuzz::harfbuzz PROPERTIES

src/harfbuzz-subset.cc

@@ -57,8 +57,10 @@
 #include "hb-subset-input.cc"
 #include "hb-subset-instancer-iup.cc"
 #include "hb-subset-instancer-solver.cc"
+#include "hb-subset-plan-layout.cc"
+#include "hb-subset-plan-var.cc"
 #include "hb-subset-plan.cc"
-#include "hb-subset-repacker.cc"
+#include "hb-subset-serialize.cc"
 #include "hb-subset.cc"
 #include "hb-ucd.cc"
 #include "hb-unicode.cc"

src/harfbuzz.cc

@@ -6,7 +6,11 @@
 #include "hb-buffer-verify.cc"
 #include "hb-buffer.cc"
 #include "hb-common.cc"
+#include "hb-coretext-font.cc"
+#include "hb-coretext-shape.cc"
 #include "hb-coretext.cc"
+#include "hb-directwrite-font.cc"
+#include "hb-directwrite-shape.cc"
 #include "hb-directwrite.cc"
 #include "hb-draw.cc"
 #include "hb-face-builder.cc"

src/hb-aat-layout-common.hh

@@ -29,7 +29,13 @@
 
 #include "hb-aat-layout.hh"
 #include "hb-aat-map.hh"
+#include "hb-ot-layout-common.hh"
+#include "hb-ot-layout-gdef-table.hh"
 #include "hb-open-type.hh"
+#include "hb-cache.hh"
+#include "hb-bit-set.hh"
+#include "hb-bit-page.hh"
+
 
 namespace OT {
 struct GDEF;
@@ -39,10 +45,66 @@ namespace AAT {
 
 using namespace OT;
 
-#define HB_AAT_BUFFER_DIGEST_THRESHOLD 32
-
 struct ankr;
 
+using hb_aat_class_cache_t = hb_cache_t<15, 8, 7>;
+static_assert (sizeof (hb_aat_class_cache_t) == 256, "");
+
+struct hb_aat_scratch_t
+{
+  hb_aat_scratch_t () = default;
+  hb_aat_scratch_t (const hb_aat_scratch_t &) = delete;
+
+  hb_aat_scratch_t (hb_aat_scratch_t &&o)
+  {
+    buffer_glyph_set.set_relaxed (o.buffer_glyph_set.get_relaxed ());
+    o.buffer_glyph_set.set_relaxed (nullptr);
+  }
+  hb_aat_scratch_t & operator = (hb_aat_scratch_t &&o)
+  {
+    buffer_glyph_set.set_relaxed (o.buffer_glyph_set.get_relaxed ());
+    o.buffer_glyph_set.set_relaxed (nullptr);
+    return *this;
+  }
+  ~hb_aat_scratch_t ()
+  {
+    auto *s = buffer_glyph_set.get_relaxed ();
+    if (unlikely (!s))
+      return;
+    s->fini ();
+    hb_free (s);
+  }
+
+  hb_bit_set_t *create_buffer_glyph_set () const
+  {
+    hb_bit_set_t *s = buffer_glyph_set.get_acquire ();
+    if (s && buffer_glyph_set.cmpexch (s, nullptr))
+      return s;
+
+    s = (hb_bit_set_t *) hb_calloc (1, sizeof (hb_bit_set_t));
+    if (unlikely (!s))
+      return nullptr;
+    s->init ();
+
+    return s;
+  }
+  void destroy_buffer_glyph_set (hb_bit_set_t *s) const
+  {
+    if (unlikely (!s))
+      return;
+    if (buffer_glyph_set.cmpexch (nullptr, s))
+      return;
+    s->fini ();
+    hb_free (s);
+  }
+
+  mutable hb_atomic_t<hb_bit_set_t *> buffer_glyph_set;
+};
+
+enum { DELETED_GLYPH = 0xFFFF };
+
+#define HB_BUFFER_SCRATCH_FLAG_AAT_HAS_DELETED HB_BUFFER_SCRATCH_FLAG_SHAPER0
+
 struct hb_aat_apply_context_t :
        hb_dispatch_context_t<hb_aat_apply_context_t, bool, HB_DEBUG_APPLY>
 {
@@ -59,12 +121,15 @@ struct hb_aat_apply_context_t :
   hb_buffer_t *buffer;
   hb_sanitize_context_t sanitizer;
   const ankr *ankr_table;
-  const OT::GDEF *gdef_table;
+  const OT::GDEF &gdef;
+  bool has_glyph_classes;
   const hb_sorted_vector_t<hb_aat_map_t::range_flags_t> *range_flags = nullptr;
-  hb_set_digest_t buffer_digest = hb_set_digest_t::full ();
-  hb_set_digest_t machine_glyph_set = hb_set_digest_t::full ();
-  hb_set_digest_t left_set = hb_set_digest_t::full ();
-  hb_set_digest_t right_set = hb_set_digest_t::full ();
+  bool using_buffer_glyph_set = false;
+  hb_bit_set_t *buffer_glyph_set = nullptr;
+  const hb_bit_set_t *left_set = nullptr;
+  const hb_bit_set_t *right_set = nullptr;
+  const hb_bit_set_t *machine_glyph_set = nullptr;
+  hb_aat_class_cache_t *machine_class_cache = nullptr;
   hb_mask_t subtable_flags = 0;
 
   /* Unused. For debug tracing only. */
@@ -80,6 +145,88 @@ struct hb_aat_apply_context_t :
   HB_INTERNAL void set_ankr_table (const AAT::ankr *ankr_table_);
 
   void set_lookup_index (unsigned int i) { lookup_index = i; }
+
+  void setup_buffer_glyph_set ()
+  {
+    using_buffer_glyph_set = buffer->len >= 4 && buffer_glyph_set;
+
+    if (likely (using_buffer_glyph_set))
+      buffer->collect_codepoints (*buffer_glyph_set);
+  }
+  bool buffer_intersects_machine () const
+  {
+    if (likely (using_buffer_glyph_set))
+      return buffer_glyph_set->intersects (*machine_glyph_set);
+
+    // Faster for shorter buffers.
+    for (unsigned i = 0; i < buffer->len; i++)
+      if (machine_glyph_set->has (buffer->info[i].codepoint))
+	return true;
+    return false;
+  }
+
+  template <typename T>
+  HB_NODISCARD bool output_glyphs (unsigned int count,
+				   const T *glyphs)
+  {
+    if (likely (using_buffer_glyph_set))
+      buffer_glyph_set->add_array (glyphs, count);
+    for (unsigned int i = 0; i < count; i++)
+    {
+      if (glyphs[i] == DELETED_GLYPH)
+      {
+        buffer->scratch_flags |= HB_BUFFER_SCRATCH_FLAG_AAT_HAS_DELETED;
+	_hb_glyph_info_set_aat_deleted (&buffer->cur());
+      }
+      else
+      {
+#ifndef HB_NO_OT_LAYOUT
+	if (has_glyph_classes)
+	  _hb_glyph_info_set_glyph_props (&buffer->cur(),
+					  gdef.get_glyph_props (glyphs[i]));
+#endif
+      }
+      if (unlikely (!buffer->output_glyph (glyphs[i]))) return false;
+    }
+    return true;
+  }
+
+  HB_NODISCARD bool replace_glyph (hb_codepoint_t glyph)
+  {
+    if (glyph == DELETED_GLYPH)
+    {
+      buffer->scratch_flags |= HB_BUFFER_SCRATCH_FLAG_AAT_HAS_DELETED;
+      _hb_glyph_info_set_aat_deleted (&buffer->cur());
+    }
+
+    if (likely (using_buffer_glyph_set))
+      buffer_glyph_set->add (glyph);
+#ifndef HB_NO_OT_LAYOUT
+    if (has_glyph_classes)
+      _hb_glyph_info_set_glyph_props (&buffer->cur(),
+				      gdef.get_glyph_props (glyph));
+#endif
+    return buffer->replace_glyph (glyph);
+  }
+
+  HB_NODISCARD bool delete_glyph ()
+  {
+    buffer->scratch_flags |= HB_BUFFER_SCRATCH_FLAG_AAT_HAS_DELETED;
+    _hb_glyph_info_set_aat_deleted (&buffer->cur());
+    return buffer->replace_glyph (DELETED_GLYPH);
+  }
+
+  void replace_glyph_inplace (unsigned i, hb_codepoint_t glyph)
+  {
+    buffer->info[i].codepoint = glyph;
+    if (likely (using_buffer_glyph_set))
+      buffer_glyph_set->add (glyph);
+#ifndef HB_NO_OT_LAYOUT
+    if (has_glyph_classes)
+      _hb_glyph_info_set_glyph_props (&buffer->info[i],
+				      gdef.get_glyph_props (glyph));
+#endif
+  }
 };
 
 
@@ -87,8 +234,6 @@ struct hb_aat_apply_context_t :
  * Lookup Table
  */
 
-enum { DELETED_GLYPH = 0xFFFF };
-
 template <typename T> struct Lookup;
 
 template <typename T>
@@ -108,6 +253,13 @@ struct LookupFormat0
   {
     glyphs.add_range (0, num_glyphs - 1);
   }
+  template <typename set_t, typename filter_t>
+  void collect_glyphs_filtered (set_t &glyphs, unsigned num_glyphs, const filter_t &filter) const
+  {
+    for (unsigned i = 0; i < num_glyphs; i++)
+      if (filter (arrayZ[i]))
+	glyphs.add (i);
+  }
 
   bool sanitize (hb_sanitize_context_t *c) const
   {
@@ -140,8 +292,14 @@ struct LookupSegmentSingle
   template <typename set_t>
   void collect_glyphs (set_t &glyphs) const
   {
-    if (first == DELETED_GLYPH)
-      return;
+    if (first == DELETED_GLYPH) return;
+    glyphs.add_range (first, last);
+  }
+  template <typename set_t, typename filter_t>
+  void collect_glyphs_filtered (set_t &glyphs, const filter_t &filter) const
+  {
+    if (first == DELETED_GLYPH) return;
+    if (!filter (value)) return;
     glyphs.add_range (first, last);
   }
 
@@ -182,6 +340,13 @@ struct LookupFormat2
     for (unsigned int i = 0; i < count; i++)
       segments[i].collect_glyphs (glyphs);
   }
+  template <typename set_t, typename filter_t>
+  void collect_glyphs_filtered (set_t &glyphs, const filter_t &filter) const
+  {
+    unsigned count = segments.get_length ();
+    for (unsigned int i = 0; i < count; i++)
+      segments[i].collect_glyphs_filtered (glyphs, filter);
+  }
 
   bool sanitize (hb_sanitize_context_t *c) const
   {
@@ -217,10 +382,18 @@ struct LookupSegmentArray
   template <typename set_t>
   void collect_glyphs (set_t &glyphs) const
   {
-    if (first == DELETED_GLYPH)
-      return;
+    if (first == DELETED_GLYPH) return;
     glyphs.add_range (first, last);
   }
+  template <typename set_t, typename filter_t>
+  void collect_glyphs_filtered (set_t &glyphs, const void *base, const filter_t &filter) const
+  {
+    if (first == DELETED_GLYPH) return;
+    const auto &values = base+valuesZ;
+    for (hb_codepoint_t i = first; i <= last; i++)
+      if (filter (values[i - first]))
+	glyphs.add (i);
+  }
 
   int cmp (hb_codepoint_t g) const
   { return g < first ? -1 : g <= last ? 0 : +1; }
@@ -271,6 +444,13 @@ struct LookupFormat4
     for (unsigned i = 0; i < count; i++)
       segments[i].collect_glyphs (glyphs);
   }
+  template <typename set_t, typename filter_t>
+  void collect_glyphs_filtered (set_t &glyphs, const filter_t &filter) const
+  {
+    unsigned count = segments.get_length ();
+    for (unsigned i = 0; i < count; i++)
+      segments[i].collect_glyphs_filtered (glyphs, this, filter);
+  }
 
   bool sanitize (hb_sanitize_context_t *c) const
   {
@@ -303,8 +483,14 @@ struct LookupSingle
   template <typename set_t>
   void collect_glyphs (set_t &glyphs) const
   {
-    if (glyph == DELETED_GLYPH)
-      return;
+    if (glyph == DELETED_GLYPH) return;
+    glyphs.add (glyph);
+  }
+  template <typename set_t, typename filter_t>
+  void collect_glyphs_filtered (set_t &glyphs, const filter_t &filter) const
+  {
+    if (glyph == DELETED_GLYPH) return;
+    if (!filter (value)) return;
     glyphs.add (glyph);
   }
 
@@ -344,6 +530,13 @@ struct LookupFormat6
     for (unsigned i = 0; i < count; i++)
       entries[i].collect_glyphs (glyphs);
   }
+  template <typename set_t, typename filter_t>
+  void collect_glyphs_filtered (set_t &glyphs, const filter_t &filter) const
+  {
+    unsigned count = entries.get_length ();
+    for (unsigned i = 0; i < count; i++)
+      entries[i].collect_glyphs_filtered (glyphs, filter);
+  }
 
   bool sanitize (hb_sanitize_context_t *c) const
   {
@@ -379,12 +572,20 @@ struct LookupFormat8
   template <typename set_t>
   void collect_glyphs (set_t &glyphs) const
   {
-    if (unlikely (!glyphCount))
-      return;
-    if (firstGlyph == DELETED_GLYPH)
-      return;
+    if (unlikely (!glyphCount)) return;
+    if (firstGlyph == DELETED_GLYPH) return;
     glyphs.add_range (firstGlyph, firstGlyph + glyphCount - 1);
   }
+  template <typename set_t, typename filter_t>
+  void collect_glyphs_filtered (set_t &glyphs, const filter_t &filter) const
+  {
+    if (unlikely (!glyphCount)) return;
+    if (firstGlyph == DELETED_GLYPH) return;
+    const T *p = valueArrayZ.arrayZ;
+    for (unsigned i = 0; i < glyphCount; i++)
+      if (filter (p[i]))
+	glyphs.add (firstGlyph + i);
+  }
 
   bool sanitize (hb_sanitize_context_t *c) const
   {
@@ -433,10 +634,8 @@ struct LookupFormat10
   template <typename set_t>
   void collect_glyphs (set_t &glyphs) const
   {
-    if (unlikely (!glyphCount))
-      return;
-    if (firstGlyph == DELETED_GLYPH)
-      return;
+    if (unlikely (!glyphCount)) return;
+    if (firstGlyph == DELETED_GLYPH) return;
     glyphs.add_range (firstGlyph, firstGlyph + glyphCount - 1);
   }
 
@@ -501,6 +700,18 @@ struct Lookup
     default:return;
     }
   }
+  template <typename set_t, typename filter_t>
+  void collect_glyphs_filtered (set_t &glyphs, unsigned num_glyphs, const filter_t &filter) const
+  {
+    switch (u.format) {
+    case 0: hb_barrier (); u.format0.collect_glyphs_filtered (glyphs, num_glyphs, filter); return;
+    case 2: hb_barrier (); u.format2.collect_glyphs_filtered (glyphs, filter); return;
+    case 4: hb_barrier (); u.format4.collect_glyphs_filtered (glyphs, filter); return;
+    case 6: hb_barrier (); u.format6.collect_glyphs_filtered (glyphs, filter); return;
+    case 8: hb_barrier (); u.format8.collect_glyphs_filtered (glyphs, filter); return;
+    default:return;
+    }
+  }
 
   typename T::type get_class (hb_codepoint_t glyph_id,
 			      unsigned int num_glyphs,
@@ -563,7 +774,7 @@ DECLARE_NULL_NAMESPACE_BYTES_TEMPLATE1 (AAT, Lookup, 2);
 template <typename T>
 struct Entry
 {
-  // This does seem like it's ever called.
+  // This doesn't seem like it's ever called.
   bool sanitize (hb_sanitize_context_t *c) const
   {
     TRACE_SANITIZE (this);
@@ -632,18 +843,51 @@ struct StateTable
   {
     (this+classTable).collect_glyphs (glyphs, num_glyphs);
   }
+  template <typename set_t, typename table_t>
+  void collect_initial_glyphs (set_t &glyphs, unsigned num_glyphs, const table_t &table) const
+  {
+    unsigned num_classes = nClasses;
+
+    if (unlikely (num_classes > hb_bit_page_t::BITS))
+    {
+      (this+classTable).collect_glyphs (glyphs, num_glyphs);
+      return;
+    }
+
+    // Collect all classes going out from the start state.
+    hb_bit_page_t filter;
+
+    for (unsigned i = 0; i < num_classes; i++)
+    {
+      const auto &entry = get_entry (STATE_START_OF_TEXT, i);
+      if (new_state (entry.newState) == STATE_START_OF_TEXT &&
+	  !table.is_action_initiable (entry) && !table.is_actionable (entry))
+	continue;
+
+      filter.add (i);
+    }
+
+    // And glyphs in those classes.
+
+    if (filter (CLASS_DELETED_GLYPH))
+      glyphs.add (DELETED_GLYPH);
+
+    (this+classTable).collect_glyphs_filtered (glyphs, num_glyphs, filter);
+  }
 
   int new_state (unsigned int newState) const
   { return Types::extended ? newState : ((int) newState - (int) stateArrayTable) / (int) nClasses; }
 
-  template <typename set_t>
   unsigned int get_class (hb_codepoint_t glyph_id,
 			  unsigned int num_glyphs,
-			  const set_t &glyphs) const
+			  hb_aat_class_cache_t *cache = nullptr) const
   {
+    unsigned klass;
+    if (cache && cache->get (glyph_id, &klass)) return klass;
     if (unlikely (glyph_id == DELETED_GLYPH)) return CLASS_DELETED_GLYPH;
-    if (!glyphs[glyph_id]) return CLASS_OUT_OF_BOUNDS;
-    return (this+classTable).get_class (glyph_id, num_glyphs, CLASS_OUT_OF_BOUNDS);
+    klass = (this+classTable).get_class (glyph_id, num_glyphs, CLASS_OUT_OF_BOUNDS);
+    if (cache) cache->set (glyph_id, klass);
+    return klass;
   }
 
   const Entry<Extra> *get_entries () const
@@ -651,13 +895,14 @@ struct StateTable
 
   const Entry<Extra> &get_entry (int state, unsigned int klass) const
   {
-    if (unlikely (klass >= nClasses))
+    unsigned n_classes = nClasses;
+    if (unlikely (klass >= n_classes))
       klass = CLASS_OUT_OF_BOUNDS;
 
     const HBUSHORT *states = (this+stateArrayTable).arrayZ;
     const Entry<Extra> *entries = (this+entryTable).arrayZ;
 
-    unsigned int entry = states[state * nClasses + klass];
+    unsigned int entry = states[state * n_classes + klass];
     DEBUG_MSG (APPLY, nullptr, "e%u", entry);
 
     return entries[entry];
@@ -803,6 +1048,13 @@ struct ClassTable
       if (classArray.arrayZ[i] != CLASS_OUT_OF_BOUNDS)
 	glyphs.add (firstGlyph + i);
   }
+  template <typename set_t, typename filter_t>
+  void collect_glyphs_filtered (set_t &glyphs, unsigned num_glyphs, const filter_t &filter) const
+  {
+    for (unsigned i = 0; i < classArray.len; i++)
+      if (filter (classArray.arrayZ[i]))
+	glyphs.add (firstGlyph + i);
+  }
 
   bool sanitize (hb_sanitize_context_t *c) const
   {
@@ -918,7 +1170,7 @@ struct ExtendedTypes
   }
 };
 
-template <typename Types, typename EntryData>
+template <typename Types, typename EntryData, typename Flags>
 struct StateTableDriver
 {
   using StateTableT = StateTable<Types, EntryData>;
@@ -929,14 +1181,6 @@ struct StateTableDriver
 	      machine (machine_),
 	      num_glyphs (face_->get_num_glyphs ()) {}
 
-  template <typename context_t>
-  bool is_idempotent_on_all_out_of_bounds (context_t *c, hb_aat_apply_context_t *ac)
-  {
-    const auto entry = machine.get_entry (StateTableT::STATE_START_OF_TEXT, CLASS_OUT_OF_BOUNDS);
-    return !c->is_actionable (ac->buffer, this, entry) &&
-	    machine.new_state (entry.newState) == StateTableT::STATE_START_OF_TEXT;
-  }
-
   template <typename context_t>
   void drive (context_t *c, hb_aat_apply_context_t *ac)
   {
@@ -977,7 +1221,7 @@ struct StateTableDriver
       }
 
       unsigned int klass = likely (buffer->idx < buffer->len) ?
-			   machine.get_class (buffer->cur().codepoint, num_glyphs, ac->machine_glyph_set) :
+			   machine.get_class (buffer->cur().codepoint, num_glyphs, ac->machine_class_cache) :
 			   (unsigned) CLASS_END_OF_TEXT;
       DEBUG_MSG (APPLY, nullptr, "c%u at %u", klass, buffer->idx);
       const EntryT &entry = machine.get_entry (state, klass);
@@ -1011,41 +1255,36 @@ struct StateTableDriver
        *
        *   https://github.com/harfbuzz/harfbuzz/issues/2860
        */
-
-      const auto is_safe_to_break_extra = [&]()
-      {
-          /* 2c. */
-          const auto &wouldbe_entry = machine.get_entry(StateTableT::STATE_START_OF_TEXT, klass);
-
-          /* 2c'. */
-          if (c->is_actionable (buffer, this, wouldbe_entry))
-	    return false;
-
-          /* 2c". */
-          return next_state == machine.new_state(wouldbe_entry.newState)
-              && (entry.flags & context_t::DontAdvance) == (wouldbe_entry.flags & context_t::DontAdvance);
-      };
-
-      const auto is_safe_to_break = [&]()
-      {
+      const EntryT *wouldbe_entry;
+      bool is_safe_to_break =
+      (
           /* 1. */
-          if (c->is_actionable (buffer, this, entry))
-              return false;
+          !c->table->is_actionable (entry) &&
 
           /* 2. */
           // This one is meh, I know...
-          const auto ok =
+	  (
                  state == StateTableT::STATE_START_OF_TEXT
-              || ((entry.flags & context_t::DontAdvance) && next_state == StateTableT::STATE_START_OF_TEXT)
-              || is_safe_to_break_extra();
-          if (!ok)
-              return false;
+              || ((entry.flags & Flags::DontAdvance) && next_state == StateTableT::STATE_START_OF_TEXT)
+              || (
+		    /* 2c. */
+		    wouldbe_entry = &machine.get_entry(StateTableT::STATE_START_OF_TEXT, klass)
+		    ,
+		    /* 2c'. */
+		    !c->table->is_actionable (*wouldbe_entry) &&
+		    /* 2c". */
+		    (
+		      next_state == machine.new_state(wouldbe_entry->newState) &&
+		      (entry.flags & Flags::DontAdvance) == (wouldbe_entry->flags & Flags::DontAdvance)
+		    )
+		 )
+	  ) &&
 
           /* 3. */
-          return !c->is_actionable (buffer, this, machine.get_entry (state, CLASS_END_OF_TEXT));
-      };
+          !c->table->is_actionable (machine.get_entry (state, CLASS_END_OF_TEXT))
+      );
 
-      if (!is_safe_to_break () && buffer->backtrack_len () && buffer->idx < buffer->len)
+      if (!is_safe_to_break && buffer->backtrack_len () && buffer->idx < buffer->len)
 	buffer->unsafe_to_break_from_outbuffer (buffer->backtrack_len () - 1, buffer->idx + 1);
 
       c->transition (buffer, this, entry);
@@ -1056,7 +1295,7 @@ struct StateTableDriver
       if (buffer->idx == buffer->len || unlikely (!buffer->successful))
 	break;
 
-      if (!(entry.flags & context_t::DontAdvance) || buffer->max_ops-- <= 0)
+      if (!(entry.flags & Flags::DontAdvance) || buffer->max_ops-- <= 0)
 	(void) buffer->next_glyph ();
     }
 

src/hb-aat-layout-kerx-table.hh

@@ -112,10 +112,6 @@ struct KerxSubTableFormat0
     if (header.coverage & header.Backwards)
       return_trace (false);
 
-    if (!(c->buffer_digest.may_have (c->left_set) &&
-	  c->buffer_digest.may_have (c->right_set)))
-      return_trace (false);
-
     accelerator_t accel (*this, c);
     hb_kern_machine_t<accelerator_t> machine (accel, header.coverage & header.CrossStream);
     machine.kern (c->font, c->buffer, c->plan->kern_mask);
@@ -144,7 +140,7 @@ struct KerxSubTableFormat0
 
     int get_kerning (hb_codepoint_t left, hb_codepoint_t right) const
     {
-      if (!c->left_set[left] || !c->right_set[right]) return 0;
+      if (!(*c->left_set)[left] || !(*c->right_set)[right]) return 0;
       return table.get_kerning (left, right, c);
     }
   };
@@ -189,6 +185,9 @@ struct Format1Entry<true>
     DEFINE_SIZE_STATIC (2);
   };
 
+  static bool initiateAction (const Entry<EntryData> &entry)
+  { return entry.flags & Push; }
+
   static bool performAction (const Entry<EntryData> &entry)
   { return entry.data.kernActionIndex != 0xFFFF; }
 
@@ -211,6 +210,9 @@ struct Format1Entry<false>
 
   typedef void EntryData;
 
+  static bool initiateAction (const Entry<EntryData> &entry)
+  { return entry.flags & Push; }
+
   static bool performAction (const Entry<EntryData> &entry)
   { return entry.flags & Offset; }
 
@@ -227,13 +229,23 @@ struct KerxSubTableFormat1
   typedef Format1Entry<Types::extended> Format1EntryT;
   typedef typename Format1EntryT::EntryData EntryData;
 
+  enum Flags
+  {
+    DontAdvance	= Format1EntryT::DontAdvance,
+  };
+
+  bool is_action_initiable (const Entry<EntryData> &entry) const
+  {
+    return Format1EntryT::initiateAction (entry);
+  }
+  bool is_actionable (const Entry<EntryData> &entry) const
+  {
+    return Format1EntryT::performAction (entry);
+  }
+
   struct driver_context_t
   {
     static constexpr bool in_place = true;
-    enum
-    {
-      DontAdvance	= Format1EntryT::DontAdvance,
-    };
 
     driver_context_t (const KerxSubTableFormat1 *table_,
 		      hb_aat_apply_context_t *c_) :
@@ -246,12 +258,8 @@ struct KerxSubTableFormat1
 	depth (0),
 	crossStream (table->header.coverage & table->header.CrossStream) {}
 
-    bool is_actionable (hb_buffer_t *buffer HB_UNUSED,
-			StateTableDriver<Types, EntryData> *driver HB_UNUSED,
-			const Entry<EntryData> &entry)
-    { return Format1EntryT::performAction (entry); }
     void transition (hb_buffer_t *buffer,
-		     StateTableDriver<Types, EntryData> *driver,
+		     StateTableDriver<Types, EntryData, Flags> *driver,
 		     const Entry<EntryData> &entry)
     {
       unsigned int flags = entry.flags;
@@ -320,8 +328,9 @@ struct KerxSubTableFormat1
 	    }
 	    else if (buffer->info[idx].mask & kern_mask)
 	    {
-	      o.x_advance += c->font->em_scale_x (v);
-	      o.x_offset += c->font->em_scale_x (v);
+	      auto scaled = c->font->em_scale_x (v);
+	      o.x_advance += scaled;
+	      o.x_offset += scaled;
 	    }
 	  }
 	  else
@@ -351,9 +360,10 @@ struct KerxSubTableFormat1
       }
     }
 
-    private:
+    public:
     hb_aat_apply_context_t *c;
     const KerxSubTableFormat1 *table;
+    private:
     const UnsizedArrayOf<FWORD> &kernAction;
     unsigned int stack[8];
     unsigned int depth;
@@ -370,12 +380,7 @@ struct KerxSubTableFormat1
 
     driver_context_t dc (this, c);
 
-    StateTableDriver<Types, EntryData> driver (machine, c->font->face);
-
-    if (driver.is_idempotent_on_all_out_of_bounds (&dc, c) &&
-	!(c->buffer_digest.may_have (c->left_set) &&
-	  c->buffer_digest.may_have (c->right_set)))
-      return_trace (false);
+    StateTableDriver<Types, EntryData, Flags> driver (machine, c->font->face);
 
     driver.drive (&dc, c);
 
@@ -393,10 +398,8 @@ struct KerxSubTableFormat1
   template <typename set_t>
   void collect_glyphs (set_t &left_set, set_t &right_set, unsigned num_glyphs) const
   {
-    set_t set;
-    machine.collect_glyphs (set, num_glyphs);
-    left_set.union_ (set);
-    right_set.union_ (set);
+    machine.collect_initial_glyphs (left_set, num_glyphs, *this);
+    //machine.collect_glyphs (right_set, num_glyphs); // right_set is unused for machine kerning
   }
 
   protected:
@@ -440,10 +443,6 @@ struct KerxSubTableFormat2
     if (header.coverage & header.Backwards)
       return_trace (false);
 
-    if (!(c->buffer_digest.may_have (c->left_set) &&
-	  c->buffer_digest.may_have (c->right_set)))
-      return_trace (false);
-
     accelerator_t accel (*this, c);
     hb_kern_machine_t<accelerator_t> machine (accel, header.coverage & header.CrossStream);
     machine.kern (c->font, c->buffer, c->plan->kern_mask);
@@ -469,7 +468,7 @@ struct KerxSubTableFormat2
 
     int get_kerning (hb_codepoint_t left, hb_codepoint_t right) const
     {
-      if (!c->left_set[left] || !c->right_set[right]) return 0;
+      if (!(*c->left_set)[left] || !(*c->right_set)[right]) return 0;
       return table.get_kerning (left, right, c);
     }
   };
@@ -513,17 +512,26 @@ struct KerxSubTableFormat4
     DEFINE_SIZE_STATIC (2);
   };
 
+  enum Flags
+  {
+    Mark		= 0x8000,	/* If set, remember this glyph as the marked glyph. */
+    DontAdvance		= 0x4000,	/* If set, don't advance to the next glyph before
+					 * going to the new state. */
+    Reserved		= 0x3FFF,	/* Not used; set to 0. */
+  };
+
+  bool is_action_initiable (const Entry<EntryData> &entry) const
+  {
+    return (entry.flags & Mark);
+  }
+  bool is_actionable (const Entry<EntryData> &entry) const
+  {
+    return entry.data.ankrActionIndex != 0xFFFF;
+  }
+
   struct driver_context_t
   {
     static constexpr bool in_place = true;
-    enum Flags
-    {
-      Mark		= 0x8000,	/* If set, remember this glyph as the marked glyph. */
-      DontAdvance	= 0x4000,	/* If set, don't advance to the next glyph before
-					 * going to the new state. */
-      Reserved		= 0x3FFF,	/* Not used; set to 0. */
-    };
-
     enum SubTableFlags
     {
       ActionType	= 0xC0000000,	/* A two-bit field containing the action type. */
@@ -533,20 +541,17 @@ struct KerxSubTableFormat4
 					 * point table. */
     };
 
-    driver_context_t (const KerxSubTableFormat4 *table,
+    driver_context_t (const KerxSubTableFormat4 *table_,
 		      hb_aat_apply_context_t *c_) :
 	c (c_),
+	table (table_),
 	action_type ((table->flags & ActionType) >> 30),
 	ankrData ((HBUINT16 *) ((const char *) &table->machine + (table->flags & Offset))),
 	mark_set (false),
 	mark (0) {}
 
-    bool is_actionable (hb_buffer_t *buffer HB_UNUSED,
-			StateTableDriver<Types, EntryData> *driver HB_UNUSED,
-			const Entry<EntryData> &entry)
-    { return entry.data.ankrActionIndex != 0xFFFF; }
     void transition (hb_buffer_t *buffer,
-		     StateTableDriver<Types, EntryData> *driver,
+		     StateTableDriver<Types, EntryData, Flags> *driver,
 		     const Entry<EntryData> &entry)
     {
       if (mark_set && entry.data.ankrActionIndex != 0xFFFF && buffer->idx < buffer->len)
@@ -634,8 +639,10 @@ struct KerxSubTableFormat4
       }
     }
 
-    private:
+    public:
     hb_aat_apply_context_t *c;
+    const KerxSubTableFormat4 *table;
+    private:
     unsigned int action_type;
     const HBUINT16 *ankrData;
     bool mark_set;
@@ -648,12 +655,7 @@ struct KerxSubTableFormat4
 
     driver_context_t dc (this, c);
 
-    StateTableDriver<Types, EntryData> driver (machine, c->font->face);
-
-    if (driver.is_idempotent_on_all_out_of_bounds (&dc, c) &&
-	!(c->buffer_digest.may_have (c->left_set) &&
-	  c->buffer_digest.may_have (c->right_set)))
-      return_trace (false);
+    StateTableDriver<Types, EntryData, Flags> driver (machine, c->font->face);
 
     driver.drive (&dc, c);
 
@@ -671,10 +673,8 @@ struct KerxSubTableFormat4
   template <typename set_t>
   void collect_glyphs (set_t &left_set, set_t &right_set, unsigned num_glyphs) const
   {
-    set_t set;
-    machine.collect_glyphs (set, num_glyphs);
-    left_set.union_ (set);
-    right_set.union_ (set);
+    machine.collect_initial_glyphs (left_set, num_glyphs, *this);
+    //machine.collect_glyphs (right_set, num_glyphs); // right_set is unused for machine kerning
   }
 
   protected:
@@ -735,10 +735,6 @@ struct KerxSubTableFormat6
     if (header.coverage & header.Backwards)
       return_trace (false);
 
-    if (!(c->buffer_digest.may_have (c->left_set) &&
-	  c->buffer_digest.may_have (c->right_set)))
-      return_trace (false);
-
     accelerator_t accel (*this, c);
     hb_kern_machine_t<accelerator_t> machine (accel, header.coverage & header.CrossStream);
     machine.kern (c->font, c->buffer, c->plan->kern_mask);
@@ -793,7 +789,7 @@ struct KerxSubTableFormat6
 
     int get_kerning (hb_codepoint_t left, hb_codepoint_t right) const
     {
-      if (!c->left_set[left] || !c->right_set[right]) return 0;
+      if (!(*c->left_set)[left] || !(*c->right_set)[right]) return 0;
       return table.get_kerning (left, right, c);
     }
   };
@@ -925,7 +921,18 @@ struct KerxSubTable
  * The 'kerx' Table
  */
 
-using kern_accelerator_data_t = hb_vector_t<hb_pair_t<hb_set_digest_t, hb_set_digest_t>>;
+struct kern_subtable_accelerator_data_t
+{
+  hb_bit_set_t left_set;
+  hb_bit_set_t right_set;
+  mutable hb_aat_class_cache_t class_cache;
+};
+
+struct kern_accelerator_data_t
+{
+  hb_vector_t<kern_subtable_accelerator_data_t> subtable_accels;
+  hb_aat_scratch_t scratch;
+};
 
 template <typename T>
 struct KerxTable
@@ -985,14 +992,11 @@ struct KerxTable
   }
 
   bool apply (AAT::hb_aat_apply_context_t *c,
-	      const kern_accelerator_data_t *accel_data = nullptr) const
+	      const kern_accelerator_data_t &accel_data) const
   {
     c->buffer->unsafe_to_concat ();
 
-    if (c->buffer->len < HB_AAT_BUFFER_DIGEST_THRESHOLD)
-      c->buffer_digest = c->buffer->digest ();
-    else
-      c->buffer_digest = hb_set_digest_t::full ();
+    c->setup_buffer_glyph_set ();
 
     typedef typename T::SubTable SubTable;
 
@@ -1005,12 +1009,25 @@ struct KerxTable
     {
       bool reverse;
 
+      auto &subtable_accel = accel_data.subtable_accels[i];
+
       if (!T::Types::extended && (st->u.header.coverage & st->u.header.Variation))
 	goto skip;
 
       if (HB_DIRECTION_IS_HORIZONTAL (c->buffer->props.direction) != st->u.header.is_horizontal ())
 	goto skip;
 
+      c->left_set = &subtable_accel.left_set;
+      c->right_set = &subtable_accel.right_set;
+      c->machine_glyph_set = &subtable_accel.left_set;
+      c->machine_class_cache = &subtable_accel.class_cache;
+
+      if (!c->buffer_intersects_machine ())
+      {
+	(void) c->buffer->message (c->font, "skipped subtable %u because no glyph matches", c->lookup_index);
+	goto skip;
+      }
+
       reverse = bool (st->u.header.coverage & st->u.header.Backwards) !=
 		HB_DIRECTION_IS_BACKWARD (c->buffer->props.direction);
 
@@ -1037,16 +1054,6 @@ struct KerxTable
       if (reverse)
 	c->buffer->reverse ();
 
-      if (accel_data)
-      {
-	c->left_set = (*accel_data)[i].first;
-	c->right_set = (*accel_data)[i].second;
-      }
-      else
-      {
-        c->left_set = c->right_set = hb_set_digest_t::full ();
-      }
-
       {
 	/* See comment in sanitize() for conditional here. */
 	hb_sanitize_with_object_t with (&c->sanitizer, i < count - 1 ? st : (const SubTable *) nullptr);
@@ -1122,9 +1129,13 @@ struct KerxTable
     unsigned int count = thiz()->tableCount;
     for (unsigned int i = 0; i < count; i++)
     {
-      hb_set_digest_t left_set, right_set;
-      st->collect_glyphs (left_set, right_set, num_glyphs);
-      accel_data.push (hb_pair (left_set, right_set));
+      auto &subtable_accel = *accel_data.subtable_accels.push ();
+      if (unlikely (accel_data.subtable_accels.in_error ()))
+	  return accel_data;
+
+      st->collect_glyphs (subtable_accel.left_set, subtable_accel.right_set, num_glyphs);
+      subtable_accel.class_cache.clear ();
+
       st = &StructAfter<SubTable> (*st);
     }
 
@@ -1148,11 +1159,12 @@ struct KerxTable
 
     bool apply (AAT::hb_aat_apply_context_t *c) const
     {
-      return table->apply (c, &accel_data);
+      return table->apply (c, accel_data);
     }
 
     hb_blob_ptr_t<T> table;
     kern_accelerator_data_t accel_data;
+    hb_aat_scratch_t scratch;
   };
 };
 

src/hb-aat-layout-morx-table.hh

@@ -29,8 +29,7 @@
 
 #include "hb-open-type.hh"
 #include "hb-aat-layout-common.hh"
-#include "hb-ot-layout-common.hh"
-#include "hb-ot-layout-gdef-table.hh"
+#include "hb-ot-layout.hh"
 #include "hb-aat-map.hh"
 
 /*
@@ -53,35 +52,40 @@ struct RearrangementSubtable
 
   typedef void EntryData;
 
-  struct driver_context_t
+  enum Flags
   {
-    static constexpr bool in_place = true;
-    enum Flags
-    {
-      MarkFirst		= 0x8000,	/* If set, make the current glyph the first
+    MarkFirst		= 0x8000,	/* If set, make the current glyph the first
 					 * glyph to be rearranged. */
-      DontAdvance	= 0x4000,	/* If set, don't advance to the next glyph
+    DontAdvance		= 0x4000,	/* If set, don't advance to the next glyph
 					 * before going to the new state. This means
 					 * that the glyph index doesn't change, even
 					 * if the glyph at that index has changed. */
-      MarkLast		= 0x2000,	/* If set, make the current glyph the last
+    MarkLast		= 0x2000,	/* If set, make the current glyph the last
 					 * glyph to be rearranged. */
-      Reserved		= 0x1FF0,	/* These bits are reserved and should be set to 0. */
-      Verb		= 0x000F,	/* The type of rearrangement specified. */
-    };
+    Reserved		= 0x1FF0,	/* These bits are reserved and should be set to 0. */
+    Verb		= 0x000F,	/* The type of rearrangement specified. */
+  };
 
-    driver_context_t (const RearrangementSubtable *table HB_UNUSED) :
+  bool is_action_initiable (const Entry<EntryData> &entry) const
+  {
+    return (entry.flags & MarkFirst);
+  }
+  bool is_actionable (const Entry<EntryData> &entry) const
+  {
+    return (entry.flags & Verb);
+  }
+
+  struct driver_context_t
+  {
+    static constexpr bool in_place = true;
+
+    driver_context_t (const RearrangementSubtable *table_) :
 	ret (false),
+	table (table_),
 	start (0), end (0) {}
 
-    bool is_actionable (hb_buffer_t *buffer HB_UNUSED,
-			StateTableDriver<Types, EntryData> *driver HB_UNUSED,
-			const Entry<EntryData> &entry) const
-    {
-      return (entry.flags & Verb) && start < end;
-    }
     void transition (hb_buffer_t *buffer,
-		     StateTableDriver<Types, EntryData> *driver,
+		     StateTableDriver<Types, EntryData, Flags> *driver,
 		     const Entry<EntryData> &entry)
     {
       unsigned int flags = entry.flags;
@@ -158,6 +162,7 @@ struct RearrangementSubtable
 
     public:
     bool ret;
+    const RearrangementSubtable *table;
     private:
     unsigned int start;
     unsigned int end;
@@ -169,11 +174,7 @@ struct RearrangementSubtable
 
     driver_context_t dc (this);
 
-    StateTableDriver<Types, EntryData> driver (machine, c->face);
-
-    if (driver.is_idempotent_on_all_out_of_bounds (&dc, c) &&
-	!c->buffer_digest.may_have (c->machine_glyph_set))
-      return_trace (false);
+    StateTableDriver<Types, EntryData, Flags> driver (machine, c->face);
 
     driver.drive (&dc, c);
 
@@ -207,39 +208,38 @@ struct ContextualSubtable
     DEFINE_SIZE_STATIC (4);
   };
 
+  enum Flags
+  {
+    SetMark		= 0x8000,	/* If set, make the current glyph the marked glyph. */
+    DontAdvance		= 0x4000,	/* If set, don't advance to the next glyph before
+					 * going to the new state. */
+    Reserved		= 0x3FFF,	/* These bits are reserved and should be set to 0. */
+  };
+
+  bool is_action_initiable (const Entry<EntryData> &entry) const
+  {
+    return (entry.flags & SetMark);
+  }
+  bool is_actionable (const Entry<EntryData> &entry) const
+  {
+    return entry.data.markIndex != 0xFFFF || entry.data.currentIndex != 0xFFFF;
+  }
+
   struct driver_context_t
   {
     static constexpr bool in_place = true;
-    enum Flags
-    {
-      SetMark		= 0x8000,	/* If set, make the current glyph the marked glyph. */
-      DontAdvance	= 0x4000,	/* If set, don't advance to the next glyph before
-					 * going to the new state. */
-      Reserved		= 0x3FFF,	/* These bits are reserved and should be set to 0. */
-    };
 
     driver_context_t (const ContextualSubtable *table_,
 			     hb_aat_apply_context_t *c_) :
 	ret (false),
 	c (c_),
-	gdef (*c->gdef_table),
-	mark_set (false),
-	has_glyph_classes (gdef.has_glyph_classes ()),
-	mark (0),
 	table (table_),
+	mark_set (false),
+	mark (0),
 	subs (table+table->substitutionTables) {}
 
-    bool is_actionable (hb_buffer_t *buffer,
-			StateTableDriver<Types, EntryData> *driver,
-			const Entry<EntryData> &entry) const
-    {
-      if (buffer->idx == buffer->len && !mark_set)
-	return false;
-
-      return entry.data.markIndex != 0xFFFF || entry.data.currentIndex != 0xFFFF;
-    }
     void transition (hb_buffer_t *buffer,
-		     StateTableDriver<Types, EntryData> *driver,
+		     StateTableDriver<Types, EntryData, Flags> *driver,
 		     const Entry<EntryData> &entry)
     {
       /* Looks like CoreText applies neither mark nor current substitution for
@@ -271,11 +271,7 @@ struct ContextualSubtable
       if (replacement)
       {
 	buffer->unsafe_to_break (mark, hb_min (buffer->idx + 1, buffer->len));
-	buffer->info[mark].codepoint = *replacement;
-	c->buffer_digest.add (*replacement);
-	if (has_glyph_classes)
-	  _hb_glyph_info_set_glyph_props (&buffer->info[mark],
-					  gdef.get_glyph_props (*replacement));
+	c->replace_glyph_inplace (mark, *replacement);
 	ret = true;
       }
 
@@ -301,11 +297,7 @@ struct ContextualSubtable
       }
       if (replacement)
       {
-	buffer->info[idx].codepoint = *replacement;
-	c->buffer_digest.add (*replacement);
-	if (has_glyph_classes)
-	  _hb_glyph_info_set_glyph_props (&buffer->info[idx],
-					  gdef.get_glyph_props (*replacement));
+	c->replace_glyph_inplace (idx, *replacement);
 	ret = true;
       }
 
@@ -318,13 +310,11 @@ struct ContextualSubtable
 
     public:
     bool ret;
-    private:
     hb_aat_apply_context_t *c;
-    const OT::GDEF &gdef;
-    bool mark_set;
-    bool has_glyph_classes;
-    unsigned int mark;
     const ContextualSubtable *table;
+    private:
+    bool mark_set;
+    unsigned int mark;
     const UnsizedListOfOffset16To<Lookup<HBGlyphID16>, HBUINT, void, false> &subs;
   };
 
@@ -334,11 +324,7 @@ struct ContextualSubtable
 
     driver_context_t dc (this, c);
 
-    StateTableDriver<Types, EntryData> driver (machine, c->face);
-
-    if (driver.is_idempotent_on_all_out_of_bounds (&dc, c) &&
-	!c->buffer_digest.may_have (c->machine_glyph_set))
-      return_trace (false);
+    StateTableDriver<Types, EntryData, Flags> driver (machine, c->face);
 
     driver.drive (&dc, c);
 
@@ -389,6 +375,16 @@ struct LigatureEntry;
 template <>
 struct LigatureEntry<true>
 {
+
+  struct EntryData
+  {
+    HBUINT16	ligActionIndex;	/* Index to the first ligActionTable entry
+				 * for processing this group, if indicated
+				 * by the flags. */
+    public:
+    DEFINE_SIZE_STATIC (2);
+  };
+
   enum Flags
   {
     SetComponent	= 0x8000,	/* Push this glyph onto the component stack for
@@ -400,14 +396,8 @@ struct LigatureEntry<true>
     Reserved		= 0x1FFF,	/* These bits are reserved and should be set to 0. */
   };
 
-  struct EntryData
-  {
-    HBUINT16	ligActionIndex;	/* Index to the first ligActionTable entry
-				 * for processing this group, if indicated
-				 * by the flags. */
-    public:
-    DEFINE_SIZE_STATIC (2);
-  };
+  static bool initiateAction (const Entry<EntryData> &entry)
+  { return entry.flags & SetComponent; }
 
   static bool performAction (const Entry<EntryData> &entry)
   { return entry.flags & PerformAction; }
@@ -418,6 +408,8 @@ struct LigatureEntry<true>
 template <>
 struct LigatureEntry<false>
 {
+  typedef void EntryData;
+
   enum Flags
   {
     SetComponent	= 0x8000,	/* Push this glyph onto the component stack for
@@ -429,7 +421,8 @@ struct LigatureEntry<false>
 					 * multiple of 4. */
   };
 
-  typedef void EntryData;
+  static bool initiateAction (const Entry<EntryData> &entry)
+  { return entry.flags & SetComponent; }
 
   static bool performAction (const Entry<EntryData> &entry)
   { return entry.flags & Offset; }
@@ -447,13 +440,23 @@ struct LigatureSubtable
   typedef LigatureEntry<Types::extended> LigatureEntryT;
   typedef typename LigatureEntryT::EntryData EntryData;
 
+  enum Flags
+  {
+    DontAdvance	= LigatureEntryT::DontAdvance,
+  };
+
+  bool is_action_initiable (const Entry<EntryData> &entry) const
+  {
+    return LigatureEntryT::initiateAction (entry);
+  }
+  bool is_actionable (const Entry<EntryData> &entry) const
+  {
+    return LigatureEntryT::performAction (entry);
+  }
+
   struct driver_context_t
   {
     static constexpr bool in_place = false;
-    enum
-    {
-      DontAdvance	= LigatureEntryT::DontAdvance,
-    };
     enum LigActionFlags
     {
       LigActionLast	= 0x80000000,	/* This is the last action in the list. This also
@@ -476,14 +479,8 @@ struct LigatureSubtable
 	ligature (table+table->ligature),
 	match_length (0) {}
 
-    bool is_actionable (hb_buffer_t *buffer HB_UNUSED,
-			StateTableDriver<Types, EntryData> *driver HB_UNUSED,
-			const Entry<EntryData> &entry) const
-    {
-      return LigatureEntryT::performAction (entry);
-    }
     void transition (hb_buffer_t *buffer,
-		     StateTableDriver<Types, EntryData> *driver,
+		     StateTableDriver<Types, EntryData, Flags> *driver,
 		     const Entry<EntryData> &entry)
     {
       DEBUG_MSG (APPLY, nullptr, "Ligature transition at %u", buffer->idx);
@@ -556,7 +553,7 @@ struct LigatureSubtable
 	    hb_codepoint_t lig = ligatureData;
 
 	    DEBUG_MSG (APPLY, nullptr, "Produced ligature %u", lig);
-	    if (unlikely (!buffer->replace_glyph (lig))) return;
+	    if (unlikely (!c->replace_glyph (lig))) return;
 
 	    unsigned int lig_end = match_positions[(match_length - 1u) % ARRAY_LENGTH (match_positions)] + 1u;
 	    /* Now go and delete all subsequent components. */
@@ -564,8 +561,7 @@ struct LigatureSubtable
 	    {
 	      DEBUG_MSG (APPLY, nullptr, "Skipping ligature component");
 	      if (unlikely (!buffer->move_to (match_positions[--match_length % ARRAY_LENGTH (match_positions)]))) return;
-	      buffer->cur().unicode_props() |= UPROPS_MASK_IGNORABLE;
-	      if (unlikely (!buffer->replace_glyph (DELETED_GLYPH))) return;
+	      if (!c->delete_glyph ()) return;
 	    }
 
 	    if (unlikely (!buffer->move_to (lig_end))) return;
@@ -581,9 +577,9 @@ struct LigatureSubtable
 
     public:
     bool ret;
-    private:
     hb_aat_apply_context_t *c;
     const LigatureSubtable *table;
+    private:
     const UnsizedArrayOf<HBUINT32> &ligAction;
     const UnsizedArrayOf<HBUINT16> &component;
     const UnsizedArrayOf<HBGlyphID16> &ligature;
@@ -597,11 +593,7 @@ struct LigatureSubtable
 
     driver_context_t dc (this, c);
 
-    StateTableDriver<Types, EntryData> driver (machine, c->face);
-
-    if (driver.is_idempotent_on_all_out_of_bounds (&dc, c) &&
-	!c->buffer_digest.may_have (c->machine_glyph_set))
-      return_trace (false);
+    StateTableDriver<Types, EntryData, Flags> driver (machine, c->face);
 
     driver.drive (&dc, c);
 
@@ -638,9 +630,6 @@ struct NoncontextualSubtable
   {
     TRACE_APPLY (this);
 
-    const OT::GDEF &gdef (*c->gdef_table);
-    bool has_glyph_classes = gdef.has_glyph_classes ();
-
     bool ret = false;
     unsigned int num_glyphs = c->face->get_num_glyphs ();
 
@@ -670,11 +659,7 @@ struct NoncontextualSubtable
       const HBGlyphID16 *replacement = substitute.get_value (info[i].codepoint, num_glyphs);
       if (replacement)
       {
-	info[i].codepoint = *replacement;
-	c->buffer_digest.add (*replacement);
-	if (has_glyph_classes)
-	  _hb_glyph_info_set_glyph_props (&info[i],
-					  gdef.get_glyph_props (*replacement));
+	c->replace_glyph_inplace (i, *replacement);
 	ret = true;
       }
     }
@@ -682,6 +667,12 @@ struct NoncontextualSubtable
     return_trace (ret);
   }
 
+  template <typename set_t>
+  void collect_initial_glyphs (set_t &glyphs, unsigned num_glyphs) const
+  {
+    substitute.collect_glyphs (glyphs, num_glyphs);
+  }
+
   bool sanitize (hb_sanitize_context_t *c) const
   {
     TRACE_SANITIZE (this);
@@ -715,73 +706,78 @@ struct InsertionSubtable
     DEFINE_SIZE_STATIC (4);
   };
 
+  enum Flags
+  {
+    SetMark		= 0x8000,     /* If set, mark the current glyph. */
+    DontAdvance		= 0x4000,     /* If set, don't advance to the next glyph before
+				       * going to the new state.  This does not mean
+				       * that the glyph pointed to is the same one as
+				       * before. If you've made insertions immediately
+				       * downstream of the current glyph, the next glyph
+				       * processed would in fact be the first one
+				       * inserted. */
+    CurrentIsKashidaLike= 0x2000,     /* If set, and the currentInsertList is nonzero,
+				       * then the specified glyph list will be inserted
+				       * as a kashida-like insertion, either before or
+				       * after the current glyph (depending on the state
+				       * of the currentInsertBefore flag). If clear, and
+				       * the currentInsertList is nonzero, then the
+				       * specified glyph list will be inserted as a
+				       * split-vowel-like insertion, either before or
+				       * after the current glyph (depending on the state
+				       * of the currentInsertBefore flag). */
+    MarkedIsKashidaLike= 0x1000,      /* If set, and the markedInsertList is nonzero,
+				       * then the specified glyph list will be inserted
+				       * as a kashida-like insertion, either before or
+				       * after the marked glyph (depending on the state
+				       * of the markedInsertBefore flag). If clear, and
+				       * the markedInsertList is nonzero, then the
+				       * specified glyph list will be inserted as a
+				       * split-vowel-like insertion, either before or
+				       * after the marked glyph (depending on the state
+				       * of the markedInsertBefore flag). */
+    CurrentInsertBefore= 0x0800,      /* If set, specifies that insertions are to be made
+				       * to the left of the current glyph. If clear,
+				       * they're made to the right of the current glyph. */
+    MarkedInsertBefore= 0x0400,	      /* If set, specifies that insertions are to be
+				       * made to the left of the marked glyph. If clear,
+				       * they're made to the right of the marked glyph. */
+    CurrentInsertCount= 0x3E0,	      /* This 5-bit field is treated as a count of the
+				       * number of glyphs to insert at the current
+				       * position. Since zero means no insertions, the
+				       * largest number of insertions at any given
+				       * current location is 31 glyphs. */
+    MarkedInsertCount= 0x001F,	      /* This 5-bit field is treated as a count of the
+				       * number of glyphs to insert at the marked
+				       * position. Since zero means no insertions, the
+				       * largest number of insertions at any given
+				       * marked location is 31 glyphs. */
+  };
+
+  bool is_action_initiable (const Entry<EntryData> &entry) const
+  {
+    return (entry.flags & SetMark);
+  }
+  bool is_actionable (const Entry<EntryData> &entry) const
+  {
+    return (entry.flags & (CurrentInsertCount | MarkedInsertCount)) &&
+	   (entry.data.currentInsertIndex != 0xFFFF ||entry.data.markedInsertIndex != 0xFFFF);
+  }
+
   struct driver_context_t
   {
     static constexpr bool in_place = false;
-    enum Flags
-    {
-      SetMark		= 0x8000,	/* If set, mark the current glyph. */
-      DontAdvance	= 0x4000,	/* If set, don't advance to the next glyph before
-					 * going to the new state.  This does not mean
-					 * that the glyph pointed to is the same one as
-					 * before. If you've made insertions immediately
-					 * downstream of the current glyph, the next glyph
-					 * processed would in fact be the first one
-					 * inserted. */
-      CurrentIsKashidaLike= 0x2000,	/* If set, and the currentInsertList is nonzero,
-					 * then the specified glyph list will be inserted
-					 * as a kashida-like insertion, either before or
-					 * after the current glyph (depending on the state
-					 * of the currentInsertBefore flag). If clear, and
-					 * the currentInsertList is nonzero, then the
-					 * specified glyph list will be inserted as a
-					 * split-vowel-like insertion, either before or
-					 * after the current glyph (depending on the state
-					 * of the currentInsertBefore flag). */
-      MarkedIsKashidaLike= 0x1000,	/* If set, and the markedInsertList is nonzero,
-					 * then the specified glyph list will be inserted
-					 * as a kashida-like insertion, either before or
-					 * after the marked glyph (depending on the state
-					 * of the markedInsertBefore flag). If clear, and
-					 * the markedInsertList is nonzero, then the
-					 * specified glyph list will be inserted as a
-					 * split-vowel-like insertion, either before or
-					 * after the marked glyph (depending on the state
-					 * of the markedInsertBefore flag). */
-      CurrentInsertBefore= 0x0800,	/* If set, specifies that insertions are to be made
-					 * to the left of the current glyph. If clear,
-					 * they're made to the right of the current glyph. */
-      MarkedInsertBefore= 0x0400,	/* If set, specifies that insertions are to be
-					 * made to the left of the marked glyph. If clear,
-					 * they're made to the right of the marked glyph. */
-      CurrentInsertCount= 0x3E0,	/* This 5-bit field is treated as a count of the
-					 * number of glyphs to insert at the current
-					 * position. Since zero means no insertions, the
-					 * largest number of insertions at any given
-					 * current location is 31 glyphs. */
-      MarkedInsertCount= 0x001F,	/* This 5-bit field is treated as a count of the
-					 * number of glyphs to insert at the marked
-					 * position. Since zero means no insertions, the
-					 * largest number of insertions at any given
-					 * marked location is 31 glyphs. */
-    };
 
-    driver_context_t (const InsertionSubtable *table,
+    driver_context_t (const InsertionSubtable *table_,
 		      hb_aat_apply_context_t *c_) :
 	ret (false),
 	c (c_),
+	table (table_),
 	mark (0),
 	insertionAction (table+table->insertionAction) {}
 
-    bool is_actionable (hb_buffer_t *buffer HB_UNUSED,
-			StateTableDriver<Types, EntryData> *driver HB_UNUSED,
-			const Entry<EntryData> &entry) const
-    {
-      return (entry.flags & (CurrentInsertCount | MarkedInsertCount)) &&
-	     (entry.data.currentInsertIndex != 0xFFFF ||entry.data.markedInsertIndex != 0xFFFF);
-    }
     void transition (hb_buffer_t *buffer,
-		     StateTableDriver<Types, EntryData> *driver,
+		     StateTableDriver<Types, EntryData, Flags> *driver,
 		     const Entry<EntryData> &entry)
     {
       unsigned int flags = entry.flags;
@@ -805,9 +801,7 @@ struct InsertionSubtable
 	if (buffer->idx < buffer->len && !before)
 	  if (unlikely (!buffer->copy_glyph ())) return;
 	/* TODO We ignore KashidaLike setting. */
-	if (unlikely (!buffer->replace_glyphs (0, count, glyphs))) return;
-	for (unsigned int i = 0; i < count; i++)
-	  c->buffer_digest.add (glyphs[i]);
+	if (unlikely (!c->output_glyphs (count, glyphs))) return;
 	ret = true;
 	if (buffer->idx < buffer->len && !before)
 	  buffer->skip_glyph ();
@@ -836,7 +830,8 @@ struct InsertionSubtable
 	if (buffer->idx < buffer->len && !before)
 	  if (unlikely (!buffer->copy_glyph ())) return;
 	/* TODO We ignore KashidaLike setting. */
-	if (unlikely (!buffer->replace_glyphs (0, count, glyphs))) return;
+	if (unlikely (!c->output_glyphs (count, glyphs))) return;
+	ret = true;
 	if (buffer->idx < buffer->len && !before)
 	  buffer->skip_glyph ();
 
@@ -861,8 +856,9 @@ struct InsertionSubtable
 
     public:
     bool ret;
-    private:
     hb_aat_apply_context_t *c;
+    const InsertionSubtable *table;
+    private:
     unsigned int mark;
     const UnsizedArrayOf<HBGlyphID16> &insertionAction;
   };
@@ -873,11 +869,7 @@ struct InsertionSubtable
 
     driver_context_t dc (this, c);
 
-    StateTableDriver<Types, EntryData> driver (machine, c->face);
-
-    if (driver.is_idempotent_on_all_out_of_bounds (&dc, c) &&
-	!c->buffer_digest.may_have (c->machine_glyph_set))
-      return_trace (false);
+    StateTableDriver<Types, EntryData, Flags> driver (machine, c->face);
 
     driver.drive (&dc, c);
 
@@ -935,24 +927,33 @@ struct hb_accelerate_subtables_context_t :
     friend struct hb_aat_layout_lookup_accelerator_t;
 
     public:
-    hb_set_digest_t digest;
+    hb_bit_set_t glyph_set;
+    mutable hb_aat_class_cache_t class_cache;
 
     template <typename T>
     auto init_ (const T &obj_, unsigned num_glyphs, hb_priority<1>) HB_AUTO_RETURN
     (
-      obj_.machine.collect_glyphs (this->digest, num_glyphs)
+      obj_.machine.collect_initial_glyphs (glyph_set, num_glyphs, obj_)
     )
 
     template <typename T>
     void init_ (const T &obj_, unsigned num_glyphs, hb_priority<0>)
     {
-      digest = digest.full ();
+      obj_.collect_initial_glyphs (glyph_set, num_glyphs);
     }
 
     template <typename T>
     void init (const T &obj_, unsigned num_glyphs)
     {
+      glyph_set.init ();
       init_ (obj_, num_glyphs, hb_prioritize);
+      class_cache.clear ();
+    }
+
+    void
+    fini ()
+    {
+      glyph_set.fini ();
     }
   };
 
@@ -999,12 +1000,21 @@ struct hb_aat_layout_chain_accelerator_t
     if (unlikely (!thiz))
       return nullptr;
 
+    thiz->count = count;
+
     hb_accelerate_subtables_context_t c_accelerate_subtables (thiz->subtables, num_glyphs);
     chain.dispatch (&c_accelerate_subtables);
 
     return thiz;
   }
 
+  void destroy ()
+  {
+    for (unsigned i = 0; i < count; i++)
+      subtables[i].fini ();
+  }
+
+  unsigned count;
   hb_accelerate_subtables_context_t::hb_applicable_t subtables[HB_VAR_ARRAY];
 };
 
@@ -1152,17 +1162,28 @@ struct Chain
     {
       bool reverse;
 
-      if (hb_none (hb_iter (c->range_flags) |
-		   hb_map ([&subtable] (const hb_aat_map_t::range_flags_t _) -> bool { return subtable->subFeatureFlags & (_.flags); })))
-	goto skip;
-      c->subtable_flags = subtable->subFeatureFlags;
-      c->machine_glyph_set = accel ? accel->subtables[i].digest : hb_set_digest_t::full ();
+      auto coverage = subtable->get_coverage ();
 
-      if (!(subtable->get_coverage() & ChainSubtable<Types>::AllDirections) &&
-	  HB_DIRECTION_IS_VERTICAL (c->buffer->props.direction) !=
-	  bool (subtable->get_coverage() & ChainSubtable<Types>::Vertical))
+      hb_mask_t subtable_flags = subtable->subFeatureFlags;
+      if (hb_none (hb_iter (c->range_flags) |
+		   hb_map ([subtable_flags] (const hb_aat_map_t::range_flags_t _) -> bool { return subtable_flags & (_.flags); })))
 	goto skip;
 
+      c->subtable_flags = subtable_flags;
+      c->machine_glyph_set = accel ? &accel->subtables[i].glyph_set : &Null(hb_bit_set_t);
+      c->machine_class_cache = accel ? &accel->subtables[i].class_cache : nullptr;
+
+      if (!(coverage & ChainSubtable<Types>::AllDirections) &&
+	  HB_DIRECTION_IS_VERTICAL (c->buffer->props.direction) !=
+	  bool (coverage & ChainSubtable<Types>::Vertical))
+	goto skip;
+
+      if (!c->buffer_intersects_machine ())
+      {
+	(void) c->buffer->message (c->font, "skipped chainsubtable %u because no glyph matches", c->lookup_index);
+	goto skip;
+      }
+
       /* Buffer contents is always in logical direction.  Determine if
        * we need to reverse before applying this subtable.  We reverse
        * back after if we did reverse indeed.
@@ -1190,9 +1211,9 @@ struct Chain
 				(the order opposite that of the characters, which
 				may be right-to-left or left-to-right).
        */
-      reverse = subtable->get_coverage () & ChainSubtable<Types>::Logical ?
-		bool (subtable->get_coverage () & ChainSubtable<Types>::Backwards) :
-		bool (subtable->get_coverage () & ChainSubtable<Types>::Backwards) !=
+      reverse = coverage & ChainSubtable<Types>::Logical ?
+		bool (coverage & ChainSubtable<Types>::Backwards) :
+		bool (coverage & ChainSubtable<Types>::Backwards) !=
 		HB_DIRECTION_IS_BACKWARD (c->buffer->props.direction);
 
       if (!c->buffer->message (c->font, "start chainsubtable %u", c->lookup_index))
@@ -1298,9 +1319,15 @@ struct mortmorx
       hb_sanitize_context_t sc;
       this->table = sc.reference_table<T> (face);
 
+      if (unlikely (this->table->is_blocklisted (this->table.get_blob (), face)))
+      {
+        hb_blob_destroy (this->table.get_blob ());
+        this->table = hb_blob_get_empty ();
+      }
+
       this->chain_count = table->get_chain_count ();
 
-      this->accels = (hb_atomic_ptr_t<hb_aat_layout_chain_accelerator_t> *) hb_calloc (this->chain_count, sizeof (*accels));
+      this->accels = (hb_atomic_t<hb_aat_layout_chain_accelerator_t *> *) hb_calloc (this->chain_count, sizeof (*accels));
       if (unlikely (!this->accels))
       {
 	this->chain_count = 0;
@@ -1311,7 +1338,11 @@ struct mortmorx
     ~accelerator_t ()
     {
       for (unsigned int i = 0; i < this->chain_count; i++)
+      {
+	if (this->accels[i])
+	  this->accels[i]->destroy ();
 	hb_free (this->accels[i]);
+      }
       hb_free (this->accels);
       this->table.destroy ();
     }
@@ -1343,7 +1374,8 @@ struct mortmorx
 
     hb_blob_ptr_t<T> table;
     unsigned int chain_count;
-    hb_atomic_ptr_t<hb_aat_layout_chain_accelerator_t> *accels;
+    hb_atomic_t<hb_aat_layout_chain_accelerator_t *> *accels;
+    hb_aat_scratch_t scratch;
   };
 
 
@@ -1365,9 +1397,8 @@ struct mortmorx
 
   unsigned get_chain_count () const
   {
-	  return chainCount;
+    return chainCount;
   }
-
   void apply (hb_aat_apply_context_t *c,
 	      const hb_aat_map_t &map,
 	      const accelerator_t &accel) const
@@ -1376,10 +1407,7 @@ struct mortmorx
 
     c->buffer->unsafe_to_concat ();
 
-    if (c->buffer->len < HB_AAT_BUFFER_DIGEST_THRESHOLD)
-      c->buffer_digest = c->buffer->digest ();
-    else
-      c->buffer_digest = hb_set_digest_t::full ();
+    c->setup_buffer_glyph_set ();
 
     c->set_lookup_index (0);
     const Chain<Types> *chain = &firstChain;
@@ -1428,8 +1456,17 @@ struct mortmorx
   DEFINE_SIZE_MIN (8);
 };
 
-struct morx : mortmorx<morx, ExtendedTypes, HB_AAT_TAG_morx> {};
-struct mort : mortmorx<mort, ObsoleteTypes, HB_AAT_TAG_mort> {};
+struct morx : mortmorx<morx, ExtendedTypes, HB_AAT_TAG_morx>
+{
+  HB_INTERNAL bool is_blocklisted (hb_blob_t *blob,
+                                   hb_face_t *face) const;
+};
+
+struct mort : mortmorx<mort, ObsoleteTypes, HB_AAT_TAG_mort>
+{
+  HB_INTERNAL bool is_blocklisted (hb_blob_t *blob,
+                                   hb_face_t *face) const;
+};
 
 struct morx_accelerator_t : morx::accelerator_t {
   morx_accelerator_t (hb_face_t *face) : morx::accelerator_t (face) {}

src/hb-aat-layout-trak-table.hh

@@ -31,6 +31,7 @@
 #include "hb-aat-layout-common.hh"
 #include "hb-ot-layout.hh"
 #include "hb-open-type.hh"
+#include "hb-ot-stat-table.hh"
 
 /*
  * trak -- Tracking
@@ -48,22 +49,74 @@ struct TrackTableEntry
 
   float get_track_value () const { return track.to_float (); }
 
-  int get_value (const void *base, unsigned int index,
-		 unsigned int table_size) const
-  { return (base+valuesZ).as_array (table_size)[index]; }
+  float interpolate_at (unsigned int idx,
+			float ptem,
+			const void *base,
+			hb_array_t<const F16DOT16> size_table) const
+  {
+    const FWORD *values = (base+valuesZ).arrayZ;
+
+    float s0 = size_table[idx].to_float ();
+    float s1 = size_table[idx + 1].to_float ();
+    int v0 = values[idx];
+    int v1 = values[idx + 1];
+
+    // Deal with font bugs.
+    if (unlikely (s1 < s0))
+    { hb_swap (s0, s1); hb_swap (v0, v1); }
+    if (unlikely (ptem < s0)) return v0;
+    if (unlikely (ptem > s1)) return v1;
+    if (unlikely (s0 == s1)) return (v0 + v1) * 0.5f;
+
+    float t = (ptem - s0) / (s1 - s0);
+    return v0 + t * (v1 - v0);
+  }
+
+  float get_value (float ptem,
+		   const void *base,
+		   hb_array_t<const F16DOT16> size_table) const
+  {
+    const FWORD *values = (base+valuesZ).arrayZ;
+
+    unsigned int n_sizes = size_table.length;
+
+    /*
+     * Choose size.
+     */
+    if (!n_sizes) return 0.f;
+    if (n_sizes == 1) return values[0];
+
+    // At least two entries.
+
+    unsigned i;
+    for (i = 0; i < n_sizes; i++)
+      if (size_table[i].to_float () >= ptem)
+	break;
+
+    // Boundary conditions.
+    if (i == 0)       return values[0];
+    if (i == n_sizes) return values[n_sizes - 1];
+
+    // Exact match.
+    if (size_table[i].to_float () == ptem) return values[i];
+
+    // Interpolate.
+    return interpolate_at (i - 1, ptem, base, size_table);
+  }
 
   public:
-  bool sanitize (hb_sanitize_context_t *c, const void *base,
-		 unsigned int table_size) const
+  bool sanitize (hb_sanitize_context_t *c,
+		 const void *base,
+		 unsigned int n_sizes) const
   {
     TRACE_SANITIZE (this);
     return_trace (likely (c->check_struct (this) &&
-			  (valuesZ.sanitize (c, base, table_size))));
+			  (valuesZ.sanitize (c, base, n_sizes))));
   }
 
   protected:
   F16DOT16	track;		/* Track value for this record. */
-  NameID	trackNameID;	/* The 'name' table index for this track.
+  OT::NameID	trackNameID;	/* The 'name' table index for this track.
 				 * (a short word or phrase like "loose"
 				 * or "very tight") */
   NNOffset16To<UnsizedArrayOf<FWORD>>
@@ -76,58 +129,38 @@ struct TrackTableEntry
 
 struct TrackData
 {
-  float interpolate_at (unsigned int idx,
-			float target_size,
-			const TrackTableEntry &trackTableEntry,
-			const void *base) const
+  float get_tracking (const void *base, float ptem, float track = 0.f) const
   {
-    unsigned int sizes = nSizes;
-    hb_array_t<const F16DOT16> size_table ((base+sizeTable).arrayZ, sizes);
+    unsigned count = nTracks;
+    hb_array_t<const F16DOT16> size_table = (base+sizeTable).as_array (nSizes);
 
-    float s0 = size_table[idx].to_float ();
-    float s1 = size_table[idx + 1].to_float ();
-    float t = unlikely (s0 == s1) ? 0.f : (target_size - s0) / (s1 - s0);
-    return t * trackTableEntry.get_value (base, idx + 1, sizes) +
-	   (1.f - t) * trackTableEntry.get_value (base, idx, sizes);
-  }
+    if (!count) return 0.f;
+    if (count == 1) return trackTable[0].get_value (ptem, base, size_table);
 
-  int get_tracking (const void *base, float ptem) const
-  {
-    /*
-     * Choose track.
-     */
-    const TrackTableEntry *trackTableEntry = nullptr;
-    unsigned int count = nTracks;
-    for (unsigned int i = 0; i < count; i++)
-    {
-      /* Note: Seems like the track entries are sorted by values.  But the
-       * spec doesn't explicitly say that.  It just mentions it in the example. */
+    // At least two entries.
 
-      /* For now we only seek for track entries with zero tracking value */
+    unsigned i = 0;
+    unsigned j = count - 1;
 
-      if (trackTable[i].get_track_value () == 0.f)
-      {
-	trackTableEntry = &trackTable[i];
-	break;
-      }
-    }
-    if (!trackTableEntry) return 0;
+    // Find the two entries that track is between.
+    while (i + 1 < count && trackTable[i + 1].get_track_value () <= track)
+      i++;
+    while (j > 0 && trackTable[j - 1].get_track_value () >= track)
+      j--;
 
-    /*
-     * Choose size.
-     */
-    unsigned int sizes = nSizes;
-    if (!sizes) return 0;
-    if (sizes == 1) return trackTableEntry->get_value (base, 0, sizes);
+    // Exact match.
+    if (i == j) return trackTable[i].get_value (ptem, base, size_table);
 
-    hb_array_t<const F16DOT16> size_table ((base+sizeTable).arrayZ, sizes);
-    unsigned int size_index;
-    for (size_index = 0; size_index < sizes - 1; size_index++)
-      if (size_table[size_index].to_float () >= ptem)
-	break;
+    // Interpolate.
 
-    return roundf (interpolate_at (size_index ? size_index - 1 : 0, ptem,
-				   *trackTableEntry, base));
+    float t0 = trackTable[i].get_track_value ();
+    float t1 = trackTable[j].get_track_value ();
+
+    float t = (track - t0) / (t1 - t0);
+
+    float a = trackTable[i].get_value (ptem, base, size_table);
+    float b = trackTable[j].get_value (ptem, base, size_table);
+    return a + t * (b - a);
   }
 
   bool sanitize (hb_sanitize_context_t *c, const void *base) const
@@ -158,42 +191,52 @@ struct trak
 
   bool has_data () const { return version.to_int (); }
 
-  bool apply (hb_aat_apply_context_t *c) const
+  hb_position_t get_h_tracking (hb_font_t *font, float track = 0.f) const
+  {
+    float ptem = font->ptem > 0.f ? font->ptem : HB_CORETEXT_DEFAULT_FONT_SIZE;
+    return font->em_scalef_x ((this+horizData).get_tracking (this, ptem, track));
+  }
+  hb_position_t get_v_tracking (hb_font_t *font, float track = 0.f) const
+  {
+    float ptem = font->ptem > 0.f ? font->ptem : HB_CORETEXT_DEFAULT_FONT_SIZE;
+    return font->em_scalef_y ((this+vertData).get_tracking (this, ptem, track));
+  }
+  hb_position_t get_tracking (hb_font_t *font, hb_direction_t dir, float track = 0.f) const
+  {
+#ifndef HB_NO_STYLE
+    if (!font->face->table.STAT->has_data ())
+      return 0;
+    return HB_DIRECTION_IS_HORIZONTAL (dir) ?
+      get_h_tracking (font, track) :
+      get_v_tracking (font, track);
+#else
+    return 0;
+#endif
+  }
+
+  bool apply (hb_aat_apply_context_t *c, float track = 0.f) const
   {
     TRACE_APPLY (this);
 
-    hb_mask_t trak_mask = c->plan->trak_mask;
-
-    const float ptem = c->font->ptem;
+    float ptem = c->font->ptem;
     if (unlikely (ptem <= 0.f))
-      return_trace (false);
+    {
+      /* https://developer.apple.com/documentation/coretext/1508745-ctfontcreatewithgraphicsfont */
+      ptem = HB_CORETEXT_DEFAULT_FONT_SIZE;
+    }
 
     hb_buffer_t *buffer = c->buffer;
     if (HB_DIRECTION_IS_HORIZONTAL (buffer->props.direction))
     {
-      const TrackData &trackData = this+horizData;
-      int tracking = trackData.get_tracking (this, ptem);
-      hb_position_t offset_to_add = c->font->em_scalef_x (tracking / 2);
-      hb_position_t advance_to_add = c->font->em_scalef_x (tracking);
+      hb_position_t advance_to_add = get_h_tracking (c->font, track);
       foreach_grapheme (buffer, start, end)
-      {
-	if (!(buffer->info[start].mask & trak_mask)) continue;
 	buffer->pos[start].x_advance += advance_to_add;
-	buffer->pos[start].x_offset += offset_to_add;
-      }
     }
     else
     {
-      const TrackData &trackData = this+vertData;
-      int tracking = trackData.get_tracking (this, ptem);
-      hb_position_t offset_to_add = c->font->em_scalef_y (tracking / 2);
-      hb_position_t advance_to_add = c->font->em_scalef_y (tracking);
+      hb_position_t advance_to_add = get_v_tracking (c->font, track);
       foreach_grapheme (buffer, start, end)
-      {
-	if (!(buffer->info[start].mask & trak_mask)) continue;
 	buffer->pos[start].y_advance += advance_to_add;
-	buffer->pos[start].y_offset += offset_to_add;
-      }
     }
 
     return_trace (true);

src/hb-aat-layout.cc

@@ -37,6 +37,9 @@
 #include "hb-aat-layout-trak-table.hh"
 #include "hb-aat-ltag-table.hh"
 
+#include "hb-ot-layout-gsub-table.hh"
+#include "hb-ot-layout-gdef-table.hh"
+
 
 /*
  * hb_aat_apply_context_t
@@ -55,13 +58,14 @@ AAT::hb_aat_apply_context_t::hb_aat_apply_context_t (const hb_ot_shape_plan_t *p
 						       buffer (buffer_),
 						       sanitizer (),
 						       ankr_table (&Null (AAT::ankr)),
-						       gdef_table (
+						       gdef (
 #ifndef HB_NO_OT_LAYOUT
-							 face->table.GDEF->table
+							 *face->table.GDEF->table
 #else
-							 &Null (GDEF)
+							 Null (GDEF)
 #endif
 						       ),
+						       has_glyph_classes (gdef.has_glyph_classes ()),
 						       lookup_index (0)
 {
   sanitizer.init (blob);
@@ -200,13 +204,43 @@ hb_aat_layout_find_feature_mapping (hb_tag_t tag)
 #endif
 
 
-#ifndef HB_NO_AAT
+#ifndef HB_NO_AAT_SHAPE
 
 /*
  * mort/morx/kerx/trak
  */
 
 
+bool
+AAT::morx::is_blocklisted (hb_blob_t *blob,
+                           hb_face_t *face) const
+{
+#ifdef HB_NO_AAT_LAYOUT_BLOCKLIST
+  return false;
+#endif
+
+  switch HB_CODEPOINT_ENCODE3 (blob->length,
+                               face->table.GSUB->table.get_length (),
+                               face->table.GDEF->table.get_length ())
+  {
+    /* https://github.com/harfbuzz/harfbuzz/issues/4108
+       sha1sum:a71ca6813b7e56a772cffff7c24a5166b087197c  AALMAGHRIBI.ttf */
+    case HB_CODEPOINT_ENCODE3 (19892, 2794, 340):
+      return true;
+  }
+  return false;
+}
+
+bool
+AAT::mort::is_blocklisted (hb_blob_t *blob,
+                           hb_face_t *face) const
+{
+#ifdef HB_NO_AAT_LAYOUT_BLOCKLIST
+  return false;
+#endif
+  return false;
+}
+
 void
 hb_aat_layout_compile_map (const hb_aat_map_builder_t *mapper,
 			   hb_aat_map_t *map)
@@ -254,11 +288,14 @@ hb_aat_layout_substitute (const hb_ot_shape_plan_t *plan,
 			  const hb_feature_t *features,
 			  unsigned num_features)
 {
-  hb_aat_map_builder_t builder (font->face, plan->props);
-  for (unsigned i = 0; i < num_features; i++)
-    builder.add_feature (features[i]);
   hb_aat_map_t map;
-  builder.compile (map);
+  if (num_features)
+  {
+    hb_aat_map_builder_t builder (font->face, plan->props);
+    for (unsigned i = 0; i < num_features; i++)
+      builder.add_feature (features[i]);
+    builder.compile (map);
+  }
 
   {
     auto &accel = *font->face->table.morx;
@@ -267,7 +304,10 @@ hb_aat_layout_substitute (const hb_ot_shape_plan_t *plan,
     {
       AAT::hb_aat_apply_context_t c (plan, font, buffer, accel.get_blob ());
       if (!buffer->message (font, "start table morx")) return;
-      morx.apply (&c, map, accel);
+      c.buffer_glyph_set = accel.scratch.create_buffer_glyph_set ();
+      morx.apply (&c, num_features ? map : plan->aat_map, accel);
+      accel.scratch.destroy_buffer_glyph_set (c.buffer_glyph_set);
+      c.buffer_glyph_set = nullptr;
       (void) buffer->message (font, "end table morx");
       return;
     }
@@ -280,34 +320,24 @@ hb_aat_layout_substitute (const hb_ot_shape_plan_t *plan,
     {
       AAT::hb_aat_apply_context_t c (plan, font, buffer, accel.get_blob ());
       if (!buffer->message (font, "start table mort")) return;
-      mort.apply (&c, map, accel);
+      mort.apply (&c, num_features ? map : plan->aat_map, accel);
       (void) buffer->message (font, "end table mort");
       return;
     }
   }
 }
 
-void
-hb_aat_layout_zero_width_deleted_glyphs (hb_buffer_t *buffer)
-{
-  unsigned int count = buffer->len;
-  hb_glyph_info_t *info = buffer->info;
-  hb_glyph_position_t *pos = buffer->pos;
-  for (unsigned int i = 0; i < count; i++)
-    if (unlikely (info[i].codepoint == AAT::DELETED_GLYPH))
-      pos[i].x_advance = pos[i].y_advance = pos[i].x_offset = pos[i].y_offset = 0;
-}
-
 static bool
 is_deleted_glyph (const hb_glyph_info_t *info)
 {
-  return info->codepoint == AAT::DELETED_GLYPH;
+  return _hb_glyph_info_is_aat_deleted (info);
 }
 
 void
 hb_aat_layout_remove_deleted_glyphs (hb_buffer_t *buffer)
 {
-  buffer->delete_glyphs_inplace (is_deleted_glyph);
+  if (buffer->scratch_flags & HB_BUFFER_SCRATCH_FLAG_AAT_HAS_DELETED)
+    buffer->delete_glyphs_inplace (is_deleted_glyph);
 }
 
 /**
@@ -338,8 +368,11 @@ hb_aat_layout_position (const hb_ot_shape_plan_t *plan,
 
   AAT::hb_aat_apply_context_t c (plan, font, buffer, accel.get_blob ());
   if (!buffer->message (font, "start table kerx")) return;
+  c.buffer_glyph_set = accel.scratch.create_buffer_glyph_set ();
   c.set_ankr_table (font->face->table.ankr.get ());
   accel.apply (&c);
+  accel.scratch.destroy_buffer_glyph_set (c.buffer_glyph_set);
+  c.buffer_glyph_set = nullptr;
   (void) buffer->message (font, "end table kerx");
 }
 

src/hb-aat-layout.hh

@@ -32,6 +32,9 @@
 #include "hb-ot-shape.hh"
 #include "hb-aat-ltag-table.hh"
 
+/* https://developer.apple.com/documentation/coretext/1508745-ctfontcreatewithgraphicsfont */
+#define HB_CORETEXT_DEFAULT_FONT_SIZE 12.f
+
 struct hb_aat_feature_mapping_t
 {
   hb_tag_t otFeatureTag;
@@ -57,9 +60,6 @@ hb_aat_layout_substitute (const hb_ot_shape_plan_t *plan,
 			  const hb_feature_t *features,
 			  unsigned num_features);
 
-HB_INTERNAL void
-hb_aat_layout_zero_width_deleted_glyphs (hb_buffer_t *buffer);
-
 HB_INTERNAL void
 hb_aat_layout_remove_deleted_glyphs (hb_buffer_t *buffer);
 

src/hb-aat-map.cc

@@ -85,25 +85,31 @@ void
 hb_aat_map_builder_t::compile (hb_aat_map_t  &m)
 {
   /* Compute active features per range, and compile each. */
+  if (!features.length)
+  {
+    hb_aat_layout_compile_map (this, &m);
+    return;
+  }
 
   /* Sort features by start/end events. */
   hb_vector_t<feature_event_t> feature_events;
+  feature_events.alloc_exact (features.length * 2 + 1);
   for (unsigned int i = 0; i < features.length; i++)
   {
-    auto &feature = features[i];
+    auto &feature = features.arrayZ[i];
 
-    if (features[i].start == features[i].end)
+    if (feature.start == feature.end)
       continue;
 
     feature_event_t *event;
 
     event = feature_events.push ();
-    event->index = features[i].start;
+    event->index = feature.start;
     event->start = true;
     event->feature = feature.info;
 
     event = feature_events.push ();
-    event->index = features[i].end;
+    event->index = feature.end;
     event->start = false;
     event->feature = feature.info;
   }
@@ -139,12 +145,12 @@ hb_aat_map_builder_t::compile (hb_aat_map_t  &m)
 	current_features.qsort ();
 	unsigned int j = 0;
 	for (unsigned int i = 1; i < current_features.length; i++)
-	  if (current_features[i].type != current_features[j].type ||
+	  if (current_features.arrayZ[i].type != current_features.arrayZ[j].type ||
 	      /* Nonexclusive feature selectors come in even/odd pairs to turn a setting on/off
 	       * respectively, so we mask out the low-order bit when checking for "duplicates"
 	       * (selectors referring to the same feature setting) here. */
-	      (!current_features[i].is_exclusive && ((current_features[i].setting & ~1) != (current_features[j].setting & ~1))))
-	    current_features[++j] = current_features[i];
+	      (!current_features.arrayZ[i].is_exclusive && ((current_features.arrayZ[i].setting & ~1) != (current_features.arrayZ[j].setting & ~1))))
+	    current_features.arrayZ[++j] = current_features.arrayZ[i];
 	current_features.shrink (j + 1);
       }
 

src/hb-algs.hh

@@ -286,7 +286,7 @@ HB_FUNCOBJ (hb_bool);
 
 // Compression function for Merkle-Damgard construction.
 // This function is generated using the framework provided.
-#define mix(h) (					\
+#define fasthash_mix(h) (					\
 			(void) ((h) ^= (h) >> 23),		\
 			(void) ((h) *= 0x2127599bf4325c37ULL),	\
 			(h) ^= (h) >> 47)
@@ -310,7 +310,7 @@ static inline uint64_t fasthash64(const void *buf, size_t len, uint64_t seed)
 #pragma GCC diagnostic ignored "-Wcast-align"
 	    v  = * (const uint64_t *) (pos++);
 #pragma GCC diagnostic pop
-	    h ^= mix(v);
+	    h ^= fasthash_mix(v);
 	    h *= m;
 	  }
 	}
@@ -320,7 +320,7 @@ static inline uint64_t fasthash64(const void *buf, size_t len, uint64_t seed)
 	  while (pos != end)
 	  {
 	    v  = pos++->v;
-	    h ^= mix(v);
+	    h ^= fasthash_mix(v);
 	    h *= m;
 	  }
 	}
@@ -336,11 +336,11 @@ static inline uint64_t fasthash64(const void *buf, size_t len, uint64_t seed)
 	case 3: v ^= (uint64_t)pos2[2] << 16; HB_FALLTHROUGH;
 	case 2: v ^= (uint64_t)pos2[1] <<  8; HB_FALLTHROUGH;
 	case 1: v ^= (uint64_t)pos2[0];
-		h ^= mix(v);
+		h ^= fasthash_mix(v);
 		h *= m;
 	}
 
-	return mix(h);
+	return fasthash_mix(h);
 }
 
 static inline uint32_t fasthash32(const void *buf, size_t len, uint32_t seed)

src/hb-array.hh

@@ -251,7 +251,8 @@ struct hb_array_t : hb_iter_with_fallback_t<hb_array_t<Type>, Type&>
     if (end < start + 2)
       return;
 
-    for (unsigned lhs = start, rhs = end - 1; lhs < rhs; lhs++, rhs--)
+    unsigned stop = start + (end - start) / 2;
+    for (unsigned lhs = start, rhs = end - 1; lhs < stop; lhs++, rhs--)
       hb_swap (arrayZ[rhs], arrayZ[lhs]);
   }
 

src/hb-atomic.hh

@@ -80,15 +80,14 @@ _hb_atomic_ptr_impl_cmplexch (const void **P, const void *O_, const void *N)
 
 #include <atomic>
 
-#define _hb_memory_barrier()			std::atomic_thread_fence(std::memory_order_ack_rel)
 #define _hb_memory_r_barrier()			std::atomic_thread_fence(std::memory_order_acquire)
 #define _hb_memory_w_barrier()			std::atomic_thread_fence(std::memory_order_release)
 
-#define hb_atomic_int_impl_add(AI, V)		(reinterpret_cast<std::atomic<std::decay<decltype (*(AI))>::type> *> (AI)->fetch_add ((V), std::memory_order_acq_rel))
-#define hb_atomic_int_impl_set_relaxed(AI, V)	(reinterpret_cast<std::atomic<std::decay<decltype (*(AI))>::type> *> (AI)->store ((V), std::memory_order_relaxed))
-#define hb_atomic_int_impl_set(AI, V)		(reinterpret_cast<std::atomic<std::decay<decltype (*(AI))>::type> *> (AI)->store ((V), std::memory_order_release))
-#define hb_atomic_int_impl_get_relaxed(AI)	(reinterpret_cast<std::atomic<std::decay<decltype (*(AI))>::type> const *> (AI)->load (std::memory_order_relaxed))
-#define hb_atomic_int_impl_get(AI)		(reinterpret_cast<std::atomic<std::decay<decltype (*(AI))>::type> const *> (AI)->load (std::memory_order_acquire))
+#define hb_atomic_int_impl_add(AI, V)		(reinterpret_cast<std::atomic<typename std::decay<decltype (*(AI))>::type> *> (AI)->fetch_add ((V), std::memory_order_acq_rel))
+#define hb_atomic_int_impl_set_relaxed(AI, V)	(reinterpret_cast<std::atomic<typename std::decay<decltype (*(AI))>::type> *> (AI)->store ((V), std::memory_order_relaxed))
+#define hb_atomic_int_impl_set(AI, V)		(reinterpret_cast<std::atomic<typename std::decay<decltype (*(AI))>::type> *> (AI)->store ((V), std::memory_order_release))
+#define hb_atomic_int_impl_get_relaxed(AI)	(reinterpret_cast<std::atomic<typename std::decay<decltype (*(AI))>::type> const *> (AI)->load (std::memory_order_relaxed))
+#define hb_atomic_int_impl_get(AI)		(reinterpret_cast<std::atomic<typename std::decay<decltype (*(AI))>::type> const *> (AI)->load (std::memory_order_acquire))
 
 #define hb_atomic_ptr_impl_set_relaxed(P, V)	(reinterpret_cast<std::atomic<void*> *> (P)->store ((V), std::memory_order_relaxed))
 #define hb_atomic_ptr_impl_get_relaxed(P)	(reinterpret_cast<std::atomic<void*> const *> (P)->load (std::memory_order_relaxed))
@@ -149,62 +148,47 @@ static inline void _hb_compiler_memory_r_barrier () {}
 #define hb_atomic_ptr_impl_get_relaxed(P)	(*(P))
 #endif
 #ifndef hb_atomic_int_impl_set
-inline void hb_atomic_int_impl_set (int *AI, int v)	{ _hb_memory_w_barrier (); *AI = v; }
-inline void hb_atomic_int_impl_set (short *AI, short v)	{ _hb_memory_w_barrier (); *AI = v; }
+template <typename T>
+inline void hb_atomic_int_impl_set (T *AI, T v)	{ _hb_memory_w_barrier (); *AI = v; }
 #endif
 #ifndef hb_atomic_int_impl_get
-inline int hb_atomic_int_impl_get (const int *AI)	{ int v = *AI; _hb_memory_r_barrier (); return v; }
-inline short hb_atomic_int_impl_get (const short *AI)	{ short v = *AI; _hb_memory_r_barrier (); return v; }
+template <typename T>
+inline T hb_atomic_int_impl_get (const T *AI)	{ T v = *AI; _hb_memory_r_barrier (); return v; }
 #endif
 #ifndef hb_atomic_ptr_impl_get
 inline void *hb_atomic_ptr_impl_get (void ** const P)	{ void *v = *P; _hb_memory_r_barrier (); return v; }
 #endif
 
 
-struct hb_atomic_short_t
+template <typename T>
+struct hb_atomic_t
 {
-  hb_atomic_short_t () = default;
-  constexpr hb_atomic_short_t (short v) : v (v) {}
+  hb_atomic_t () = default;
+  constexpr hb_atomic_t (T v) : v (v) {}
 
-  hb_atomic_short_t& operator = (short v_) { set_relaxed (v_); return *this; }
-  operator short () const { return get_relaxed (); }
+  hb_atomic_t& operator = (T v_) { set_relaxed (v_); return *this; }
+  operator T () const { return get_relaxed (); }
 
-  void set_relaxed (short v_) { hb_atomic_int_impl_set_relaxed (&v, v_); }
-  void set_release (short v_) { hb_atomic_int_impl_set (&v, v_); }
-  short get_relaxed () const { return hb_atomic_int_impl_get_relaxed (&v); }
-  short get_acquire () const { return hb_atomic_int_impl_get (&v); }
-  short inc () { return hb_atomic_int_impl_add (&v,  1); }
-  short dec () { return hb_atomic_int_impl_add (&v, -1); }
+  void set_relaxed (T v_) { hb_atomic_int_impl_set_relaxed (&v, v_); }
+  void set_release (T v_) { hb_atomic_int_impl_set (&v, v_); }
+  T get_relaxed () const { return hb_atomic_int_impl_get_relaxed (&v); }
+  T get_acquire () const { return hb_atomic_int_impl_get (&v); }
+  T inc () { return hb_atomic_int_impl_add (&v,  1); }
+  T dec () { return hb_atomic_int_impl_add (&v, -1); }
 
-  short v = 0;
+  int operator ++ (int) { return inc (); }
+  int operator -- (int) { return dec (); }
+  long operator |= (long v_) { set_relaxed (get_relaxed () | v_); return *this; }
+
+  T v = 0;
 };
 
-struct hb_atomic_int_t
+template <typename T>
+struct hb_atomic_t<T*>
 {
-  hb_atomic_int_t () = default;
-  constexpr hb_atomic_int_t (int v) : v (v) {}
-
-  hb_atomic_int_t& operator = (int v_) { set_relaxed (v_); return *this; }
-  operator int () const { return get_relaxed (); }
-
-  void set_relaxed (int v_) { hb_atomic_int_impl_set_relaxed (&v, v_); }
-  void set_release (int v_) { hb_atomic_int_impl_set (&v, v_); }
-  int get_relaxed () const { return hb_atomic_int_impl_get_relaxed (&v); }
-  int get_acquire () const { return hb_atomic_int_impl_get (&v); }
-  int inc () { return hb_atomic_int_impl_add (&v,  1); }
-  int dec () { return hb_atomic_int_impl_add (&v, -1); }
-
-  int v = 0;
-};
-
-template <typename P>
-struct hb_atomic_ptr_t
-{
-  typedef hb_remove_pointer<P> T;
-
-  hb_atomic_ptr_t () = default;
-  constexpr hb_atomic_ptr_t (T* v) : v (v) {}
-  hb_atomic_ptr_t (const hb_atomic_ptr_t &other) = delete;
+  hb_atomic_t () = default;
+  constexpr hb_atomic_t (T* v) : v (v) {}
+  hb_atomic_t (const hb_atomic_t &other) = delete;
 
   void init (T* v_ = nullptr) { set_relaxed (v_); }
   void set_relaxed (T* v_) { hb_atomic_ptr_impl_set_relaxed (&v, v_); }
@@ -212,6 +196,7 @@ struct hb_atomic_ptr_t
   T *get_acquire () const { return (T *) hb_atomic_ptr_impl_get ((void **) &v); }
   bool cmpexch (const T *old, T *new_) const { return hb_atomic_ptr_impl_cmpexch ((void **) &v, (void *) old, (void *) new_); }
 
+  operator bool () const { return get_acquire () != nullptr; }
   T * operator -> () const                    { return get_acquire (); }
   template <typename C> operator C * () const { return get_acquire (); }
 

src/hb-bit-page.hh

@@ -78,6 +78,28 @@ struct hb_vector_size_t
   hb_vector_size_t operator ~ () const
   { return process (hb_bitwise_neg); }
 
+  operator bool () const
+  {
+    for (unsigned int i = 0; i < ARRAY_LENGTH (v); i++)
+      if (v[i])
+	return true;
+    return false;
+  }
+  operator unsigned int () const
+  {
+    unsigned int r = 0;
+    for (unsigned int i = 0; i < ARRAY_LENGTH (v); i++)
+      r += hb_popcount (v[i]);
+    return r;
+  }
+  bool operator == (const hb_vector_size_t &o) const
+  {
+    for (unsigned int i = 0; i < ARRAY_LENGTH (v); i++)
+      if (v[i] != o.v[i])
+	return false;
+    return true;
+  }
+
   hb_array_t<const elt_t> iter () const
   { return hb_array (v); }
 
@@ -89,6 +111,8 @@ struct hb_vector_size_t
 
 struct hb_bit_page_t
 {
+  hb_bit_page_t () { init0 (); }
+
   void init0 () { v.init0 (); population = 0; }
   void init1 () { v.init1 (); population = PAGE_BITS; }
 
@@ -101,10 +125,9 @@ struct hb_bit_page_t
   bool is_empty () const
   {
     if (has_population ()) return !population;
-    return
-    + hb_iter (v)
-    | hb_none
-    ;
+    bool empty = !v;
+    if (empty) population = 0;
+    return empty;
   }
   uint32_t hash () const
   {
@@ -115,6 +138,10 @@ struct hb_bit_page_t
   void del (hb_codepoint_t g) { elt (g) &= ~mask (g); dirty (); }
   void set (hb_codepoint_t g, bool value) { if (value) add (g); else del (g); }
   bool get (hb_codepoint_t g) const { return elt (g) & mask (g); }
+  bool may_have (hb_codepoint_t g) const { return get (g); }
+
+  bool operator [] (hb_codepoint_t g) const { return get (g); }
+  bool operator () (hb_codepoint_t g) const { return get (g); }
 
   void add_range (hb_codepoint_t a, hb_codepoint_t b)
   {
@@ -220,13 +247,17 @@ struct hb_bit_page_t
   }
 
   bool operator == (const hb_bit_page_t &other) const { return is_equal (other); }
-  bool is_equal (const hb_bit_page_t &other) const
+  bool is_equal (const hb_bit_page_t &other) const { return v == other.v; }
+  bool intersects (const hb_bit_page_t &other) const
   {
     for (unsigned i = 0; i < len (); i++)
-      if (v[i] != other.v[i])
-	return false;
-    return true;
+      if (v[i] & other.v[i])
+	return true;
+    return false;
   }
+  bool may_intersect (const hb_bit_page_t &other) const
+  { return intersects (other); }
+
   bool operator <= (const hb_bit_page_t &larger_page) const { return is_subset (larger_page); }
   bool is_subset (const hb_bit_page_t &larger_page) const
   {
@@ -241,14 +272,10 @@ struct hb_bit_page_t
   }
 
   bool has_population () const { return population != UINT_MAX; }
-  unsigned int get_population () const
+  unsigned get_population () const
   {
     if (has_population ()) return population;
-    population =
-    + hb_iter (v)
-    | hb_reduce ([] (unsigned pop, const elt_t &_) { return pop + hb_popcount (_); }, 0u)
-    ;
-    return population;
+    return population = v;
   }
 
   bool next (hb_codepoint_t *codepoint) const

src/hb-bit-set-invertible.hh

@@ -126,6 +126,7 @@ struct hb_bit_set_invertible_t
   { unlikely (inverted) ? (void) s.add_range (a, b) : s.del_range (a, b); }
 
   bool get (hb_codepoint_t g) const { return s.get (g) ^ inverted; }
+  bool may_have (hb_codepoint_t g) const { return get (g); }
 
   /* Has interface. */
   bool operator [] (hb_codepoint_t k) const { return get (k); }
@@ -139,6 +140,9 @@ struct hb_bit_set_invertible_t
   hb_bit_set_invertible_t& operator << (const hb_codepoint_pair_t& range)
   { add_range (range.first, range.second); return *this; }
 
+  bool may_intersect (const hb_bit_set_invertible_t &other) const
+  { return inverted || other.inverted || s.intersects (other.s); }
+
   bool intersects (hb_codepoint_t first, hb_codepoint_t last) const
   {
     hb_codepoint_t c = first - 1;

src/hb-bit-set.hh

@@ -77,7 +77,7 @@ struct hb_bit_set_t
 
   bool successful = true; /* Allocations successful */
   mutable unsigned int population = 0;
-  mutable hb_atomic_int_t last_page_lookup = 0;
+  mutable hb_atomic_t<unsigned> last_page_lookup = 0;
   hb_sorted_vector_t<page_map_t> page_map;
   hb_vector_t<page_t> pages;
 
@@ -88,10 +88,11 @@ struct hb_bit_set_t
   {
     if (unlikely (!successful)) return false;
 
-    if (pages.length == 0 && count == 1)
+    if (pages.length < count && (unsigned) pages.allocated < count && count <= 2)
       exact_size = true; // Most sets are small and local
 
-    if (unlikely (!pages.resize (count, clear, exact_size) || !page_map.resize (count, clear, exact_size)))
+    if (unlikely (!pages.resize (count, clear, exact_size) ||
+	!page_map.resize (count, clear)))
     {
       pages.resize (page_map.length, clear, exact_size);
       successful = false;
@@ -297,9 +298,9 @@ struct hb_bit_set_t
       unsigned int write_index = 0;
       for (unsigned int i = 0; i < page_map.length; i++)
       {
-	int m = (int) page_map[i].major;
+	int m = (int) page_map.arrayZ[i].major;
 	if (m < ds || de < m)
-	  page_map[write_index++] = page_map[i];
+	  page_map.arrayZ[write_index++] = page_map.arrayZ[i];
       }
       compact (compact_workspace, write_index);
       resize (write_index);
@@ -345,6 +346,7 @@ struct hb_bit_set_t
       return false;
     return page->get (g);
   }
+  bool may_have (hb_codepoint_t g) const { return get (g); }
 
   /* Has interface. */
   bool operator [] (hb_codepoint_t k) const { return get (k); }
@@ -358,6 +360,31 @@ struct hb_bit_set_t
   hb_bit_set_t& operator << (const hb_codepoint_pair_t& range)
   { add_range (range.first, range.second); return *this; }
 
+  bool intersects (const hb_bit_set_t &other) const
+  {
+    unsigned int na = pages.length;
+    unsigned int nb = other.pages.length;
+
+    unsigned int a = 0, b = 0;
+    for (; a < na && b < nb; )
+    {
+      if (page_map.arrayZ[a].major == other.page_map.arrayZ[b].major)
+      {
+	if (page_at (a).intersects (other.page_at (b)))
+	  return true;
+	a++;
+	b++;
+      }
+      else if (page_map.arrayZ[a].major < other.page_map.arrayZ[b].major)
+	a++;
+      else
+	b++;
+    }
+    return false;
+  }
+  bool may_intersect (const hb_bit_set_t &other) const
+  { return intersects (other); }
+
   bool intersects (hb_codepoint_t first, hb_codepoint_t last) const
   {
     hb_codepoint_t c = first - 1;
@@ -389,7 +416,7 @@ struct hb_bit_set_t
     {
       if (page_at (a).is_empty ()) { a++; continue; }
       if (other.page_at (b).is_empty ()) { b++; continue; }
-      if (page_map[a].major != other.page_map[b].major ||
+      if (page_map.arrayZ[a].major != other.page_map.arrayZ[b].major ||
 	  !page_at (a).is_equal (other.page_at (b)))
 	return false;
       a++;
@@ -412,8 +439,8 @@ struct hb_bit_set_t
     uint32_t spi = 0;
     for (uint32_t lpi = 0; spi < page_map.length && lpi < larger_set.page_map.length; lpi++)
     {
-      uint32_t spm = page_map[spi].major;
-      uint32_t lpm = larger_set.page_map[lpi].major;
+      uint32_t spm = page_map.arrayZ[spi].major;
+      uint32_t lpm = larger_set.page_map.arrayZ[lpi].major;
       auto sp = page_at (spi);
 
       if (spm < lpm && !sp.is_empty ())
@@ -503,7 +530,7 @@ struct hb_bit_set_t
 
     for (; a < na && b < nb; )
     {
-      if (page_map[a].major == other.page_map[b].major)
+      if (page_map.arrayZ[a].major == other.page_map.arrayZ[b].major)
       {
 	if (!passthru_left)
 	{
@@ -512,7 +539,7 @@ struct hb_bit_set_t
 	  // passthru_left is set since no left side pages will be removed
 	  // in that case.
 	  if (write_index < a)
-	    page_map[write_index] = page_map[a];
+	    page_map.arrayZ[write_index] = page_map.arrayZ[a];
 	  write_index++;
 	}
 
@@ -520,7 +547,7 @@ struct hb_bit_set_t
 	a++;
 	b++;
       }
-      else if (page_map[a].major < other.page_map[b].major)
+      else if (page_map.arrayZ[a].major < other.page_map.arrayZ[b].major)
       {
 	if (passthru_left)
 	  count++;
@@ -765,8 +792,8 @@ struct hb_bit_set_t
     unsigned int initial_size = size;
     for (unsigned int i = start_page; i < page_map.length && size; i++)
     {
-      uint32_t base = major_start (page_map[i].major);
-      unsigned int n = pages[page_map[i].index].write (base, start_page_value, out, size);
+      uint32_t base = major_start (page_map.arrayZ[i].major);
+      unsigned int n = pages[page_map.arrayZ[i].index].write (base, start_page_value, out, size);
       out += n;
       size -= n;
       start_page_value = 0;
@@ -814,8 +841,8 @@ struct hb_bit_set_t
     hb_codepoint_t next_value = codepoint + 1;
     for (unsigned int i=start_page; i<page_map.length && size; i++)
     {
-      uint32_t base = major_start (page_map[i].major);
-      unsigned int n = pages[page_map[i].index].write_inverted (base, start_page_value, out, size, &next_value);
+      uint32_t base = major_start (page_map.arrayZ[i].major);
+      unsigned int n = pages[page_map.arrayZ[i].index].write_inverted (base, start_page_value, out, size, &next_value);
       out += n;
       size -= n;
       start_page_value = 0;
@@ -846,8 +873,8 @@ struct hb_bit_set_t
     unsigned count = pages.length;
     for (unsigned i = 0; i < count; i++)
     {
-      const auto& map = page_map[i];
-      const auto& page = pages[map.index];
+      const auto& map = page_map.arrayZ[i];
+      const auto& page = pages.arrayZ[map.index];
 
       if (!page.is_empty ())
 	return map.major * page_t::PAGE_BITS + page.get_min ();
@@ -859,8 +886,8 @@ struct hb_bit_set_t
     unsigned count = pages.length;
     for (signed i = count - 1; i >= 0; i--)
     {
-      const auto& map = page_map[(unsigned) i];
-      const auto& page = pages[map.index];
+      const auto& map = page_map.arrayZ[(unsigned) i];
+      const auto& page = pages.arrayZ[map.index];
 
       if (!page.is_empty ())
 	return map.major * page_t::PAGE_BITS + page.get_max ();
@@ -961,7 +988,7 @@ struct hb_bit_set_t
       return nullptr;
 
     last_page_lookup = i;
-    return &pages.arrayZ[page_map[i].index];
+    return &pages.arrayZ[page_map.arrayZ[i].index];
   }
   page_t &page_at (unsigned int i)
   {

src/hb-bit-vector.hh

@@ -0,0 +1,195 @@
+/*
+ *  This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_BIT_VECTOR_HH
+#define HB_BIT_VECTOR_HH
+
+#include "hb.hh"
+
+#include "hb-atomic.hh"
+
+struct hb_min_max_t
+{
+  void add (hb_codepoint_t v) { min_v = hb_min (min_v, v); max_v = hb_max (max_v, v); }
+  void add_range (hb_codepoint_t a, hb_codepoint_t b)
+  {
+    min_v = hb_min (min_v, a);
+    max_v = hb_max (max_v, b);
+  }
+
+  template <typename set_t>
+  void union_ (const set_t &set)
+  {
+    hb_codepoint_t set_min = set.get_min ();
+    if (unlikely (set_min == HB_CODEPOINT_INVALID))
+      return;
+    hb_codepoint_t set_max = set.get_max ();
+    min_v = hb_min (min_v, set_min);
+    max_v = hb_max (max_v, set_max);
+  }
+
+  hb_codepoint_t get_min () const { return min_v; }
+  hb_codepoint_t get_max () const { return max_v; }
+
+  private:
+  hb_codepoint_t min_v = HB_CODEPOINT_INVALID;
+  hb_codepoint_t max_v = 0;
+};
+
+template <bool atomic = false>
+struct hb_bit_vector_t
+{
+  using int_t = uint64_t;
+  using elt_t = typename std::conditional<atomic, hb_atomic_t<int_t>, int_t>::type;
+
+  hb_bit_vector_t () = delete;
+  hb_bit_vector_t (const hb_bit_vector_t &other) = delete;
+  hb_bit_vector_t &operator= (const hb_bit_vector_t &other) = delete;
+
+  // Move
+  hb_bit_vector_t (hb_bit_vector_t &&other)
+		: min_v (other.min_v), max_v (other.max_v), count (other.count), elts (other.elts)
+  {
+    other.min_v = other.max_v = other.count = 0;
+    other.elts = nullptr;
+  }
+  hb_bit_vector_t &operator= (hb_bit_vector_t &&other)
+  {
+    hb_swap (min_v, other.min_v);
+    hb_swap (max_v, other.max_v);
+    hb_swap (count, other.count);
+    hb_swap (elts, other.elts);
+    return *this;
+  }
+
+  hb_bit_vector_t (unsigned min_v, unsigned max_v)
+    : min_v (min_v), max_v (max_v)
+  {
+    if (unlikely (min_v >= max_v))
+    {
+      min_v = max_v = count = 0;
+      return;
+    }
+
+    unsigned num = (max_v - min_v + sizeof (int_t) * 8) / (sizeof (int_t) * 8);
+    elts = (elt_t *) hb_calloc (num, sizeof (int_t));
+    if (unlikely (!elts))
+    {
+      min_v = max_v = count = 0;
+      return;
+    }
+
+    count = max_v - min_v + 1;
+  }
+  ~hb_bit_vector_t ()
+  {
+    hb_free (elts);
+  }
+
+  void add (hb_codepoint_t g) { elt (g) |= mask (g); }
+  void del (hb_codepoint_t g) { elt (g) &= ~mask (g); }
+  void set (hb_codepoint_t g, bool value) { if (value) add (g); else del (g); }
+  bool get (hb_codepoint_t g) const { return elt (g) & mask (g); }
+  bool has (hb_codepoint_t g) const { return get (g); }
+  bool may_have (hb_codepoint_t g) const { return get (g); }
+
+  bool operator [] (hb_codepoint_t g) const { return get (g); }
+  bool operator () (hb_codepoint_t g) const { return get (g); }
+
+  void add_range (hb_codepoint_t a, hb_codepoint_t b)
+  {
+    if (unlikely (!count || a > b || a < min_v || b > max_v))
+      return;
+
+    elt_t *la = &elt (a);
+    elt_t *lb = &elt (b);
+    if (la == lb)
+      *la |= (mask (b) << 1) - mask(a);
+    else
+    {
+      *la |= ~(mask (a) - 1llu);
+      la++;
+
+      hb_memset (la, 0xff, (char *) lb - (char *) la);
+
+      *lb |= ((mask (b) << 1) - 1llu);
+    }
+  }
+  void del_range (hb_codepoint_t a, hb_codepoint_t b)
+  {
+    if (unlikely (!count || a > b || a < min_v || b > max_v))
+      return;
+
+    elt_t *la = &elt (a);
+    elt_t *lb = &elt (b);
+    if (la == lb)
+      *la &= ~((mask (b) << 1llu) - mask(a));
+    else
+    {
+      *la &= mask (a) - 1;
+      la++;
+
+      hb_memset (la, 0, (char *) lb - (char *) la);
+
+      *lb &= ~((mask (b) << 1) - 1llu);
+    }
+  }
+  void set_range (hb_codepoint_t a, hb_codepoint_t b, bool v)
+  { if (v) add_range (a, b); else del_range (a, b); }
+
+  template <typename set_t>
+  void union_ (const set_t &set)
+  {
+    for (hb_codepoint_t g : set)
+      add (g);
+  }
+
+  static const unsigned int ELT_BITS = sizeof (elt_t) * 8;
+  static constexpr unsigned ELT_MASK = ELT_BITS - 1;
+
+  static constexpr elt_t zero = 0;
+
+  elt_t &elt (hb_codepoint_t g)
+  {
+    g -= min_v;
+    if (unlikely (g >= count))
+      return Crap(elt_t);
+    return elts[g / ELT_BITS];
+  }
+  const elt_t& elt (hb_codepoint_t g) const
+  {
+    g -= min_v;
+    if (unlikely (g >= count))
+      return Null(elt_t);
+    return elts[g / ELT_BITS];
+  }
+
+  static constexpr int_t mask (hb_codepoint_t g) { return elt_t (1) << (g & ELT_MASK); }
+
+  hb_codepoint_t min_v = 0, max_v = 0, count = 0;
+  elt_t *elts = nullptr;
+};
+
+
+#endif /* HB_BIT_VECTOR_HH */