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[directwrite] Massage more

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This commit is contained in:
Behdad Esfahbod 2025-03-14 02:05:45 -06:00
parent db93dbb286
commit c73b54bcca
1 changed files with 80 additions and 67 deletions
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147
src/hb-directwrite.cc
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@ -197,41 +197,87 @@ public:
}
};
struct hb_directwrite_global_t
{
hb_directwrite_global_t ()
{
dwrite_dll = LoadLibraryW (L"DWrite.dll");
#if defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-function-type"
#endif
t_DWriteCreateFactory p_DWriteCreateFactory = (t_DWriteCreateFactory)
GetProcAddress (dwrite_dll, "DWriteCreateFactory");
#if defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic pop
#endif
if (unlikely (!p_DWriteCreateFactory))
return;
HRESULT hr = p_DWriteCreateFactory (DWRITE_FACTORY_TYPE_SHARED, __uuidof (IDWriteFactory),
(IUnknown**) &dwriteFactory);
if (unlikely (hr != S_OK))
return;
fontFileLoader = new DWriteFontFileLoader ();
dwriteFactory->RegisterFontFileLoader (fontFileLoader);
success = true;
}
~hb_directwrite_global_t ()
{
if (fontFileLoader)
fontFileLoader->Release ();
if (dwriteFactory)
dwriteFactory->Release ();
if (dwrite_dll)
FreeLibrary (dwrite_dll);
}
bool success = false;
HMODULE dwrite_dll;
IDWriteFactory *dwriteFactory;
DWriteFontFileLoader *fontFileLoader;
};
static inline void free_static_dwrite_dll ();
static struct hb_dwrite_dll_lazy_loader_t : hb_lazy_loader_t<hb_remove_pointer<HMODULE>,
hb_dwrite_dll_lazy_loader_t>
static struct hb_directwrite_global_lazy_loader_t : hb_lazy_loader_t<hb_directwrite_global_t,
hb_directwrite_global_lazy_loader_t>
{
static HMODULE create ()
static hb_directwrite_global_t * create ()
{
HMODULE l = LoadLibrary (TEXT ("DWRITE"));
if (unlikely (!l))
return nullptr;
hb_directwrite_global_t *global = new hb_directwrite_global_t;
hb_atexit (free_static_dwrite_dll);
return l;
return global;
}
static void destroy (HMODULE l)
static void destroy (hb_directwrite_global_t *l)
{
FreeLibrary (l);
delete l;
}
static HMODULE get_null ()
static hb_directwrite_global_t * get_null ()
{
return nullptr;
}
} static_dwrite_dll;
} static_directwrite_global;
static inline
void free_static_dwrite_dll ()
{
static_dwrite_dll.free_instance ();
static_directwrite_global.free_instance ();
}
static HMODULE
get_dwrite_dll ()
static hb_directwrite_global_t *
get_directwrite_global ()
{
return static_dwrite_dll.get_unconst ();
return static_directwrite_global.get_unconst ();
}
/*
@ -251,46 +297,17 @@ struct hb_directwrite_face_data_t
_hb_directwrite_face_data_destroy (this); \
} HB_STMT_END
auto dwrite_dll = get_dwrite_dll ();
if (unlikely (!dwrite_dll))
FAIL ("Cannot find DWrite.DLL");
t_DWriteCreateFactory p_DWriteCreateFactory;
#if defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-function-type"
#endif
p_DWriteCreateFactory = (t_DWriteCreateFactory)
GetProcAddress (dwrite_dll, "DWriteCreateFactory");
#if defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic pop
#endif
if (unlikely (!p_DWriteCreateFactory))
FAIL ("Cannot find DWriteCreateFactory().");
HRESULT hr;
// TODO: factory and fontFileLoader should be cached separately
hr = p_DWriteCreateFactory (DWRITE_FACTORY_TYPE_SHARED, __uuidof (IDWriteFactory),
(IUnknown**) &dwriteFactory);
if (unlikely (hr != S_OK))
FAIL ("Failed to run DWriteCreateFactory().");
fontFileLoader = new DWriteFontFileLoader ();
dwriteFactory->RegisterFontFileLoader (fontFileLoader);
auto *global = get_directwrite_global ();
if (unlikely (!global || !global->success))
FAIL ("Couldn't load DirectWrite!");
fontFileStream = new DWriteFontFileStream (blob);
fontFileKey = fontFileLoader->RegisterFontFileStream (fontFileStream);
fontFileKey = global->fontFileLoader->RegisterFontFileStream (fontFileStream);
IDWriteFontFile *fontFile;
hr = dwriteFactory->CreateCustomFontFileReference (&fontFileKey, sizeof (fontFileKey),
fontFileLoader, &fontFile);
auto hr = global->dwriteFactory->CreateCustomFontFileReference (&fontFileKey, sizeof (fontFileKey),
global->fontFileLoader, &fontFile);
if (FAILED (hr))
FAIL ("Failed to load font file from data!");
@ -305,8 +322,8 @@ struct hb_directwrite_face_data_t
#undef FAIL
dwriteFactory->CreateFontFace (faceType, 1, &fontFile, index,
DWRITE_FONT_SIMULATIONS_NONE, &fontFace);
global->dwriteFactory->CreateFontFace (faceType, 1, &fontFile, index,
DWRITE_FONT_SIMULATIONS_NONE, &fontFace);
fontFile->Release ();
}
@ -316,7 +333,6 @@ struct hb_directwrite_face_data_t
}
public:
IDWriteFactory *dwriteFactory;
DWriteFontFileLoader *fontFileLoader;
DWriteFontFileStream *fontFileStream;
uint64_t fontFileKey;
@ -352,24 +368,16 @@ _hb_directwrite_shaper_face_data_create (hb_face_t *face)
static void
_hb_directwrite_face_data_destroy (hb_directwrite_face_data_t *data)
{
auto *global = get_directwrite_global ();
if (unlikely (!global || !global->success))
global = nullptr;
if (data->fontFace)
{
data->fontFace->Release ();
data->fontFace = nullptr;
}
if (data->dwriteFactory)
{
if (data->fontFileLoader)
data->dwriteFactory->UnregisterFontFileLoader (data->fontFileLoader);
data->dwriteFactory->Release ();
data->dwriteFactory = nullptr;
}
if (data->fontFileLoader)
{
data->fontFileLoader->UnregisterFontFileStream (data->fontFileKey);
data->fontFileLoader->Release ();
data->fontFileLoader = nullptr;
}
global->fontFileLoader->UnregisterFontFileStream (data->fontFileKey);
if (data->fontFileStream)
{
data->fontFileStream->Release ();
@ -686,7 +694,12 @@ _hb_directwrite_shape (hb_shape_plan_t *shape_plan,
{
hb_face_t *face = font->face;
const hb_directwrite_face_data_t *face_data = face->data.directwrite;
IDWriteFactory *dwriteFactory = face_data->dwriteFactory;
auto *global = get_directwrite_global ();
if (unlikely (!global || !global->success))
return false;
IDWriteFactory *dwriteFactory = global->dwriteFactory;
IDWriteFontFace *fontFace = face_data->fontFace;
IDWriteTextAnalyzer* analyzer;