[test] Add hb-paint-all

test/meson.build

@@ -4,3 +4,4 @@ subdir('threads')
 subdir('shape')
 subdir('api')
 subdir('draw')
+subdir('paint')

test/paint/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 < 3)
+  {
+    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;
+}

test/paint/meson.build

@@ -0,0 +1,6 @@
+hb_paint_all = executable('hb-paint-all', ['hb-paint-all.c'],
+  cpp_args: cpp_args,
+  include_directories: [incconfig, incsrc],
+  link_with: [libharfbuzz],
+)
+meson.override_find_program('hb-paint-all', hb_paint_all)