diff options
Diffstat (limited to 'chromium/third_party/skia/src/utils/win/SkDWrite.h')
-rw-r--r-- | chromium/third_party/skia/src/utils/win/SkDWrite.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/chromium/third_party/skia/src/utils/win/SkDWrite.h b/chromium/third_party/skia/src/utils/win/SkDWrite.h new file mode 100644 index 00000000000..679447dfc61 --- /dev/null +++ b/chromium/third_party/skia/src/utils/win/SkDWrite.h @@ -0,0 +1,76 @@ +/* + * Copyright 2014 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#ifndef SkDWrite_DEFINED +#define SkDWrite_DEFINED + +#include "SkTemplates.h" + +#include <dwrite.h> + +class SkString; + +//////////////////////////////////////////////////////////////////////////////// +// Factory + +IDWriteFactory* sk_get_dwrite_factory(); + +//////////////////////////////////////////////////////////////////////////////// +// String conversion + +/** Prefer to use this type to prevent template proliferation. */ +typedef SkAutoSTMalloc<16, WCHAR> SkSMallocWCHAR; + +/** Converts a utf8 string to a WCHAR string. */ +HRESULT sk_cstring_to_wchar(const char* skname, SkSMallocWCHAR* name); + +/** Converts a WCHAR string to a utf8 string. */ +HRESULT sk_wchar_to_skstring(WCHAR* name, SkString* skname); + +//////////////////////////////////////////////////////////////////////////////// +// Locale + +void sk_get_locale_string(IDWriteLocalizedStrings* names, const WCHAR* preferedLocale, + SkString* skname); + +typedef decltype(GetUserDefaultLocaleName)* SkGetUserDefaultLocaleNameProc; +HRESULT SkGetGetUserDefaultLocaleNameProc(SkGetUserDefaultLocaleNameProc* proc); + +//////////////////////////////////////////////////////////////////////////////// +// Table handling + +class AutoDWriteTable { +public: + AutoDWriteTable(IDWriteFontFace* fontFace, UINT32 beTag) : fFontFace(fontFace), fExists(FALSE) { + // Any errors are ignored, user must check fExists anyway. + fontFace->TryGetFontTable(beTag, + reinterpret_cast<const void **>(&fData), &fSize, &fLock, &fExists); + } + ~AutoDWriteTable() { + if (fExists) { + fFontFace->ReleaseFontTable(fLock); + } + } + + const uint8_t* fData; + UINT32 fSize; + BOOL fExists; +private: + // Borrowed reference, the user must ensure the fontFace stays alive. + IDWriteFontFace* fFontFace; + void* fLock; +}; +template<typename T> class AutoTDWriteTable : public AutoDWriteTable { +public: + static const UINT32 tag = DWRITE_MAKE_OPENTYPE_TAG(T::TAG0, T::TAG1, T::TAG2, T::TAG3); + AutoTDWriteTable(IDWriteFontFace* fontFace) : AutoDWriteTable(fontFace, tag) { } + + const T* get() const { return reinterpret_cast<const T*>(fData); } + const T* operator->() const { return reinterpret_cast<const T*>(fData); } +}; + +#endif |