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Revert "[hb-directwrite] Don't load dwrit.dll dynamically" 

This reverts commit 6119ff9d80.
This commit is contained in:
Cameron Cawley 2021-09-24 21:32:12 +01:00 committed by Behdad Esfahbod
parent 4262636926
commit ecbe224743
1 changed files with 34 additions and 2 deletions
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36
src/hb-directwrite.cc
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@ -43,6 +43,14 @@
* Functions for using HarfBuzz with DirectWrite fonts.
**/
/* Declare object creator for dynamic support of DWRITE */
typedef HRESULT (* WINAPI t_DWriteCreateFactory)(
DWRITE_FACTORY_TYPE factoryType,
REFIID iid,
IUnknown **factory
);
/*
* DirectWrite font stream helpers
*/
@ -137,6 +145,7 @@ public:
struct hb_directwrite_face_data_t
{
HMODULE dwrite_dll;
IDWriteFactory *dwriteFactory;
IDWriteFontFile *fontFile;
DWriteFontFileStream *fontFileStream;
@ -158,12 +167,33 @@ _hb_directwrite_shaper_face_data_create (hb_face_t *face)
return nullptr; \
} HB_STMT_END
data->dwrite_dll = LoadLibrary (TEXT ("DWRITE"));
if (unlikely (!data->dwrite_dll))
FAIL ("Cannot find DWrite.DLL");
t_DWriteCreateFactory p_DWriteCreateFactory;
#if defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-function-type"
#endif
p_DWriteCreateFactory = (t_DWriteCreateFactory)
GetProcAddress (data->dwrite_dll, "DWriteCreateFactory");
#if defined(__GNUC__)
#pragma GCC diagnostic pop
#endif
if (unlikely (!p_DWriteCreateFactory))
FAIL ("Cannot find DWriteCreateFactory().");
HRESULT hr;
// TODO: factory and fontFileLoader should be cached separately
IDWriteFactory* dwriteFactory;
hr = DWriteCreateFactory (DWRITE_FACTORY_TYPE_SHARED, __uuidof (IDWriteFactory),
(IUnknown**) &dwriteFactory);
hr = p_DWriteCreateFactory (DWRITE_FACTORY_TYPE_SHARED, __uuidof (IDWriteFactory),
(IUnknown**) &dwriteFactory);
if (unlikely (hr != S_OK))
FAIL ("Failed to run DWriteCreateFactory().");
@ -227,6 +257,8 @@ _hb_directwrite_shaper_face_data_destroy (hb_directwrite_face_data_t *data)
delete data->fontFileStream;
if (data->faceBlob)
hb_blob_destroy (data->faceBlob);
if (data->dwrite_dll)
FreeLibrary (data->dwrite_dll);
if (data)
delete data;
}