bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #include "SkTypes.h" |
| 9 | #undef GetGlyphIndices |
| 10 | |
| 11 | #include "SkAdvancedTypefaceMetrics.h" |
| 12 | #include "SkColorFilter.h" |
| 13 | #include "SkDWriteFontFileStream.h" |
| 14 | #include "SkDWriteGeometrySink.h" |
| 15 | #include "SkDescriptor.h" |
| 16 | #include "SkEndian.h" |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 17 | #include "SkFontDescriptor.h" |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 18 | #include "SkFontHost.h" |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 19 | #include "SkFontMgr.h" |
bungeman@google.com | b10b51f | 2013-08-01 20:18:41 +0000 | [diff] [blame] | 20 | #include "SkFontStream.h" |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 21 | #include "SkGlyph.h" |
| 22 | #include "SkHRESULT.h" |
| 23 | #include "SkMaskGamma.h" |
| 24 | #include "SkOTTable_head.h" |
| 25 | #include "SkOTTable_hhea.h" |
| 26 | #include "SkOTTable_OS_2.h" |
| 27 | #include "SkOTTable_post.h" |
| 28 | #include "SkPath.h" |
| 29 | #include "SkStream.h" |
| 30 | #include "SkString.h" |
| 31 | #include "SkTScopedComPtr.h" |
| 32 | #include "SkThread.h" |
| 33 | #include "SkTypeface_win.h" |
| 34 | #include "SkTypefaceCache.h" |
| 35 | #include "SkUtils.h" |
| 36 | |
| 37 | #include <dwrite.h> |
| 38 | |
| 39 | SK_DECLARE_STATIC_MUTEX(gFTMutex); |
| 40 | |
| 41 | static bool isLCD(const SkScalerContext::Rec& rec) { |
| 42 | return SkMask::kLCD16_Format == rec.fMaskFormat || |
| 43 | SkMask::kLCD32_Format == rec.fMaskFormat; |
| 44 | } |
| 45 | |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 46 | /** Prefer to use this type to prevent template proliferation. */ |
| 47 | typedef SkAutoSTMalloc<16, WCHAR> SkSMallocWCHAR; |
| 48 | |
| 49 | static HRESULT cstring_to_wchar(const char* skname, SkSMallocWCHAR* name) { |
| 50 | int wlen = MultiByteToWideChar(CP_UTF8, 0, skname, -1, NULL, 0); |
| 51 | if (0 == wlen) { |
| 52 | HRM(HRESULT_FROM_WIN32(GetLastError()), |
| 53 | "Could not get length for wchar to utf-8 conversion."); |
| 54 | } |
| 55 | name->reset(wlen); |
| 56 | wlen = MultiByteToWideChar(CP_UTF8, 0, skname, -1, name->get(), wlen); |
| 57 | if (0 == wlen) { |
| 58 | HRM(HRESULT_FROM_WIN32(GetLastError()), "Could not convert wchar to utf-8."); |
| 59 | } |
| 60 | return S_OK; |
| 61 | } |
| 62 | |
| 63 | static HRESULT wchar_to_skstring(WCHAR* name, SkString* skname) { |
| 64 | int len = WideCharToMultiByte(CP_UTF8, 0, name, -1, NULL, 0, NULL, NULL); |
| 65 | if (0 == len) { |
| 66 | HRM(HRESULT_FROM_WIN32(GetLastError()), |
| 67 | "Could not get length for utf-8 to wchar conversion."); |
| 68 | } |
| 69 | skname->resize(len - 1); |
| 70 | len = WideCharToMultiByte(CP_UTF8, 0, name, -1, skname->writable_str(), len, NULL, NULL); |
| 71 | if (0 == len) { |
| 72 | HRM(HRESULT_FROM_WIN32(GetLastError()), "Could not convert utf-8 to wchar."); |
| 73 | } |
| 74 | return S_OK; |
| 75 | } |
| 76 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 77 | /////////////////////////////////////////////////////////////////////////////// |
| 78 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 79 | class StreamFontFileLoader; |
| 80 | |
| 81 | class SkFontMgr_DirectWrite : public SkFontMgr { |
| 82 | public: |
| 83 | /** localeNameLength must include the null terminator. */ |
| 84 | SkFontMgr_DirectWrite(IDWriteFontCollection* fontCollection, |
| 85 | WCHAR* localeName, int localeNameLength) |
| 86 | : fFontCollection(SkRefComPtr(fontCollection)) |
| 87 | , fLocaleName(localeNameLength) |
| 88 | { |
| 89 | memcpy(fLocaleName.get(), localeName, localeNameLength * sizeof(WCHAR)); |
| 90 | } |
| 91 | |
| 92 | SkTypefaceCache* getTypefaceCache() { return &fTFCache; } |
| 93 | |
| 94 | SkTypeface* createTypefaceFromDWriteFont(IDWriteFontFace* fontFace, |
| 95 | IDWriteFont* font, |
| 96 | IDWriteFontFamily* fontFamily, |
| 97 | StreamFontFileLoader* = NULL, |
| 98 | IDWriteFontCollectionLoader* = NULL); |
| 99 | |
| 100 | protected: |
| 101 | virtual int onCountFamilies() SK_OVERRIDE; |
| 102 | virtual void onGetFamilyName(int index, SkString* familyName) SK_OVERRIDE; |
| 103 | virtual SkFontStyleSet* onCreateStyleSet(int index) SK_OVERRIDE; |
| 104 | virtual SkFontStyleSet* onMatchFamily(const char familyName[]) SK_OVERRIDE; |
| 105 | virtual SkTypeface* onMatchFamilyStyle(const char familyName[], |
| 106 | const SkFontStyle& fontstyle) SK_OVERRIDE; |
| 107 | virtual SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember, |
| 108 | const SkFontStyle& fontstyle) SK_OVERRIDE; |
| 109 | virtual SkTypeface* onCreateFromStream(SkStream* stream, int ttcIndex) SK_OVERRIDE; |
| 110 | virtual SkTypeface* onCreateFromData(SkData* data, int ttcIndex) SK_OVERRIDE; |
| 111 | virtual SkTypeface* onCreateFromFile(const char path[], int ttcIndex) SK_OVERRIDE; |
| 112 | virtual SkTypeface* onLegacyCreateTypeface(const char familyName[], |
| 113 | unsigned styleBits) SK_OVERRIDE; |
| 114 | |
| 115 | private: |
bungeman@google.com | 86dd752 | 2013-10-04 17:00:35 +0000 | [diff] [blame^] | 116 | SkMutex fTFCacheMutex; |
| 117 | void Add(SkTypeface* face, SkTypeface::Style requestedStyle, bool strong) { |
| 118 | SkAutoMutexAcquire ama(fTFCacheMutex); |
| 119 | fTFCache.add(face, requestedStyle, strong); |
| 120 | } |
| 121 | |
| 122 | SkTypeface* FindByProcAndRef(SkTypefaceCache::FindProc proc, void* ctx) { |
| 123 | SkAutoMutexAcquire ama(fTFCacheMutex); |
| 124 | SkTypeface* typeface = fTFCache.findByProcAndRef(proc, ctx); |
| 125 | return typeface; |
| 126 | } |
| 127 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 128 | friend class SkFontStyleSet_DirectWrite; |
| 129 | SkTScopedComPtr<IDWriteFontCollection> fFontCollection; |
| 130 | SkSMallocWCHAR fLocaleName; |
| 131 | SkTypefaceCache fTFCache; |
| 132 | }; |
| 133 | |
| 134 | class SkFontStyleSet_DirectWrite : public SkFontStyleSet { |
| 135 | public: |
| 136 | SkFontStyleSet_DirectWrite(SkFontMgr_DirectWrite* fontMgr, IDWriteFontFamily* fontFamily) |
| 137 | : fFontMgr(SkRef(fontMgr)) |
| 138 | , fFontFamily(SkRefComPtr(fontFamily)) |
| 139 | { } |
| 140 | |
| 141 | virtual int count() SK_OVERRIDE; |
| 142 | virtual void getStyle(int index, SkFontStyle* fs, SkString* styleName) SK_OVERRIDE; |
| 143 | virtual SkTypeface* createTypeface(int index) SK_OVERRIDE; |
| 144 | virtual SkTypeface* matchStyle(const SkFontStyle& pattern) SK_OVERRIDE; |
| 145 | |
| 146 | private: |
| 147 | SkAutoTUnref<SkFontMgr_DirectWrite> fFontMgr; |
| 148 | SkTScopedComPtr<IDWriteFontFamily> fFontFamily; |
| 149 | }; |
| 150 | |
| 151 | /////////////////////////////////////////////////////////////////////////////// |
| 152 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 153 | class DWriteOffscreen { |
| 154 | public: |
| 155 | DWriteOffscreen() : fWidth(0), fHeight(0) { |
| 156 | } |
| 157 | |
| 158 | void init(IDWriteFontFace* fontFace, const DWRITE_MATRIX& xform, FLOAT fontSize) { |
| 159 | fFontFace = fontFace; |
| 160 | fFontSize = fontSize; |
| 161 | fXform = xform; |
| 162 | } |
| 163 | |
| 164 | const void* draw(const SkGlyph&, bool isBW); |
| 165 | |
| 166 | private: |
| 167 | uint16_t fWidth; |
| 168 | uint16_t fHeight; |
| 169 | IDWriteFontFace* fFontFace; |
| 170 | FLOAT fFontSize; |
| 171 | DWRITE_MATRIX fXform; |
| 172 | SkTDArray<uint8_t> fBits; |
| 173 | }; |
| 174 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 175 | static HRESULT get_dwrite_factory(IDWriteFactory** factory) { |
| 176 | static IDWriteFactory* gDWriteFactory = NULL; |
| 177 | |
| 178 | if (gDWriteFactory != NULL) { |
| 179 | *factory = gDWriteFactory; |
| 180 | return S_OK; |
| 181 | } |
| 182 | |
bungeman@google.com | af9296e | 2013-08-21 14:53:59 +0000 | [diff] [blame] | 183 | typedef decltype(DWriteCreateFactory)* DWriteCreateFactoryProc; |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 184 | DWriteCreateFactoryProc dWriteCreateFactoryProc = |
| 185 | reinterpret_cast<DWriteCreateFactoryProc>( |
| 186 | GetProcAddress(LoadLibraryW(L"dwrite.dll"), "DWriteCreateFactory") |
| 187 | ) |
| 188 | ; |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 189 | if (!dWriteCreateFactoryProc) { |
bungeman@google.com | 42a7829 | 2013-08-21 22:41:05 +0000 | [diff] [blame] | 190 | HRESULT hr = HRESULT_FROM_WIN32(GetLastError()); |
| 191 | if (!IS_ERROR(hr)) { |
| 192 | hr = ERROR_PROC_NOT_FOUND; |
| 193 | } |
| 194 | return hr; |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 195 | } |
| 196 | |
| 197 | HRM(dWriteCreateFactoryProc(DWRITE_FACTORY_TYPE_SHARED, |
| 198 | __uuidof(IDWriteFactory), |
| 199 | reinterpret_cast<IUnknown**>(&gDWriteFactory)), |
| 200 | "Could not create DirectWrite factory."); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 201 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 202 | *factory = gDWriteFactory; |
| 203 | return S_OK; |
| 204 | } |
| 205 | |
| 206 | const void* DWriteOffscreen::draw(const SkGlyph& glyph, bool isBW) { |
| 207 | IDWriteFactory* factory; |
| 208 | HRNM(get_dwrite_factory(&factory), "Could not get factory."); |
| 209 | |
| 210 | if (fWidth < glyph.fWidth || fHeight < glyph.fHeight) { |
| 211 | fWidth = SkMax32(fWidth, glyph.fWidth); |
| 212 | fHeight = SkMax32(fHeight, glyph.fHeight); |
| 213 | |
| 214 | if (isBW) { |
| 215 | fBits.setCount(fWidth * fHeight); |
| 216 | } else { |
| 217 | fBits.setCount(fWidth * fHeight * 3); |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | // erase |
| 222 | memset(fBits.begin(), 0, fBits.count()); |
| 223 | |
| 224 | fXform.dx = SkFixedToFloat(glyph.getSubXFixed()); |
| 225 | fXform.dy = SkFixedToFloat(glyph.getSubYFixed()); |
| 226 | |
| 227 | FLOAT advance = 0.0f; |
| 228 | |
| 229 | UINT16 index = glyph.getGlyphID(); |
| 230 | |
| 231 | DWRITE_GLYPH_OFFSET offset; |
| 232 | offset.advanceOffset = 0.0f; |
| 233 | offset.ascenderOffset = 0.0f; |
| 234 | |
| 235 | DWRITE_GLYPH_RUN run; |
| 236 | run.glyphCount = 1; |
| 237 | run.glyphAdvances = &advance; |
| 238 | run.fontFace = fFontFace; |
| 239 | run.fontEmSize = fFontSize; |
| 240 | run.bidiLevel = 0; |
| 241 | run.glyphIndices = &index; |
| 242 | run.isSideways = FALSE; |
| 243 | run.glyphOffsets = &offset; |
| 244 | |
| 245 | DWRITE_RENDERING_MODE renderingMode; |
| 246 | DWRITE_TEXTURE_TYPE textureType; |
| 247 | if (isBW) { |
| 248 | renderingMode = DWRITE_RENDERING_MODE_ALIASED; |
| 249 | textureType = DWRITE_TEXTURE_ALIASED_1x1; |
| 250 | } else { |
| 251 | renderingMode = DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL_SYMMETRIC; |
| 252 | textureType = DWRITE_TEXTURE_CLEARTYPE_3x1; |
| 253 | } |
| 254 | SkTScopedComPtr<IDWriteGlyphRunAnalysis> glyphRunAnalysis; |
| 255 | HRNM(factory->CreateGlyphRunAnalysis(&run, |
| 256 | 1.0f, // pixelsPerDip, |
| 257 | &fXform, |
| 258 | renderingMode, |
| 259 | DWRITE_MEASURING_MODE_NATURAL, |
| 260 | 0.0f, // baselineOriginX, |
| 261 | 0.0f, // baselineOriginY, |
| 262 | &glyphRunAnalysis), |
| 263 | "Could not create glyph run analysis."); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 264 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 265 | //NOTE: this assumes that the glyph has already been measured |
| 266 | //with an exact same glyph run analysis. |
| 267 | RECT bbox; |
| 268 | bbox.left = glyph.fLeft; |
| 269 | bbox.top = glyph.fTop; |
| 270 | bbox.right = glyph.fLeft + glyph.fWidth; |
| 271 | bbox.bottom = glyph.fTop + glyph.fHeight; |
| 272 | HRNM(glyphRunAnalysis->CreateAlphaTexture(textureType, |
| 273 | &bbox, |
| 274 | fBits.begin(), |
| 275 | fBits.count()), |
| 276 | "Could not draw mask."); |
| 277 | return fBits.begin(); |
| 278 | } |
| 279 | |
| 280 | /////////////////////////////////////////////////////////////////////////////// |
| 281 | |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 282 | class StreamFontFileLoader : public IDWriteFontFileLoader { |
| 283 | public: |
| 284 | // IUnknown methods |
| 285 | virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void** ppvObject); |
| 286 | virtual ULONG STDMETHODCALLTYPE AddRef(); |
| 287 | virtual ULONG STDMETHODCALLTYPE Release(); |
| 288 | |
| 289 | // IDWriteFontFileLoader methods |
| 290 | virtual HRESULT STDMETHODCALLTYPE CreateStreamFromKey( |
| 291 | void const* fontFileReferenceKey, |
| 292 | UINT32 fontFileReferenceKeySize, |
| 293 | IDWriteFontFileStream** fontFileStream); |
| 294 | |
| 295 | static HRESULT Create(SkStream* stream, StreamFontFileLoader** streamFontFileLoader) { |
| 296 | *streamFontFileLoader = new StreamFontFileLoader(stream); |
| 297 | if (NULL == streamFontFileLoader) { |
| 298 | return E_OUTOFMEMORY; |
| 299 | } |
| 300 | return S_OK; |
| 301 | } |
| 302 | |
| 303 | SkAutoTUnref<SkStream> fStream; |
| 304 | |
| 305 | private: |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 306 | StreamFontFileLoader(SkStream* stream) : fRefCount(1), fStream(SkRef(stream)) { } |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 307 | |
| 308 | ULONG fRefCount; |
| 309 | }; |
| 310 | |
| 311 | HRESULT StreamFontFileLoader::QueryInterface(REFIID iid, void** ppvObject) { |
| 312 | if (iid == IID_IUnknown || iid == __uuidof(IDWriteFontFileLoader)) { |
| 313 | *ppvObject = this; |
| 314 | AddRef(); |
| 315 | return S_OK; |
| 316 | } else { |
| 317 | *ppvObject = NULL; |
| 318 | return E_NOINTERFACE; |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | ULONG StreamFontFileLoader::AddRef() { |
| 323 | return InterlockedIncrement(&fRefCount); |
| 324 | } |
| 325 | |
| 326 | ULONG StreamFontFileLoader::Release() { |
| 327 | ULONG newCount = InterlockedDecrement(&fRefCount); |
| 328 | if (0 == newCount) { |
| 329 | delete this; |
| 330 | } |
| 331 | return newCount; |
| 332 | } |
| 333 | |
| 334 | HRESULT StreamFontFileLoader::CreateStreamFromKey( |
| 335 | void const* fontFileReferenceKey, |
| 336 | UINT32 fontFileReferenceKeySize, |
| 337 | IDWriteFontFileStream** fontFileStream) |
| 338 | { |
| 339 | SkTScopedComPtr<SkDWriteFontFileStreamWrapper> stream; |
| 340 | HR(SkDWriteFontFileStreamWrapper::Create(fStream, &stream)); |
| 341 | *fontFileStream = stream.release(); |
| 342 | return S_OK; |
| 343 | } |
| 344 | |
| 345 | class StreamFontFileEnumerator : public IDWriteFontFileEnumerator { |
| 346 | public: |
| 347 | // IUnknown methods |
| 348 | virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void** ppvObject); |
| 349 | virtual ULONG STDMETHODCALLTYPE AddRef(); |
| 350 | virtual ULONG STDMETHODCALLTYPE Release(); |
| 351 | |
| 352 | // IDWriteFontFileEnumerator methods |
| 353 | virtual HRESULT STDMETHODCALLTYPE MoveNext(BOOL* hasCurrentFile); |
| 354 | virtual HRESULT STDMETHODCALLTYPE GetCurrentFontFile(IDWriteFontFile** fontFile); |
| 355 | |
| 356 | static HRESULT Create(IDWriteFactory* factory, IDWriteFontFileLoader* fontFileLoader, |
| 357 | StreamFontFileEnumerator** streamFontFileEnumerator) { |
| 358 | *streamFontFileEnumerator = new StreamFontFileEnumerator(factory, fontFileLoader); |
| 359 | if (NULL == streamFontFileEnumerator) { |
| 360 | return E_OUTOFMEMORY; |
| 361 | } |
| 362 | return S_OK; |
| 363 | } |
| 364 | private: |
| 365 | StreamFontFileEnumerator(IDWriteFactory* factory, IDWriteFontFileLoader* fontFileLoader); |
| 366 | ULONG fRefCount; |
| 367 | |
| 368 | SkTScopedComPtr<IDWriteFactory> fFactory; |
| 369 | SkTScopedComPtr<IDWriteFontFile> fCurrentFile; |
| 370 | SkTScopedComPtr<IDWriteFontFileLoader> fFontFileLoader; |
| 371 | bool fHasNext; |
| 372 | }; |
| 373 | |
| 374 | StreamFontFileEnumerator::StreamFontFileEnumerator(IDWriteFactory* factory, |
| 375 | IDWriteFontFileLoader* fontFileLoader) |
| 376 | : fRefCount(1) |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 377 | , fFactory(SkRefComPtr(factory)) |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 378 | , fCurrentFile() |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 379 | , fFontFileLoader(SkRefComPtr(fontFileLoader)) |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 380 | , fHasNext(true) |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 381 | { } |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 382 | |
| 383 | HRESULT StreamFontFileEnumerator::QueryInterface(REFIID iid, void** ppvObject) { |
| 384 | if (iid == IID_IUnknown || iid == __uuidof(IDWriteFontFileEnumerator)) { |
| 385 | *ppvObject = this; |
| 386 | AddRef(); |
| 387 | return S_OK; |
| 388 | } else { |
| 389 | *ppvObject = NULL; |
| 390 | return E_NOINTERFACE; |
| 391 | } |
| 392 | } |
| 393 | |
| 394 | ULONG StreamFontFileEnumerator::AddRef() { |
| 395 | return InterlockedIncrement(&fRefCount); |
| 396 | } |
| 397 | |
| 398 | ULONG StreamFontFileEnumerator::Release() { |
| 399 | ULONG newCount = InterlockedDecrement(&fRefCount); |
| 400 | if (0 == newCount) { |
| 401 | delete this; |
| 402 | } |
| 403 | return newCount; |
| 404 | } |
| 405 | |
| 406 | HRESULT StreamFontFileEnumerator::MoveNext(BOOL* hasCurrentFile) { |
| 407 | *hasCurrentFile = FALSE; |
| 408 | |
| 409 | if (!fHasNext) { |
| 410 | return S_OK; |
| 411 | } |
| 412 | fHasNext = false; |
| 413 | |
| 414 | UINT32 dummy = 0; |
| 415 | HR(fFactory->CreateCustomFontFileReference( |
| 416 | &dummy, //cannot be NULL |
| 417 | sizeof(dummy), //even if this is 0 |
| 418 | fFontFileLoader.get(), |
| 419 | &fCurrentFile)); |
| 420 | |
| 421 | *hasCurrentFile = TRUE; |
| 422 | return S_OK; |
| 423 | } |
| 424 | |
| 425 | HRESULT StreamFontFileEnumerator::GetCurrentFontFile(IDWriteFontFile** fontFile) { |
| 426 | if (fCurrentFile.get() == NULL) { |
| 427 | *fontFile = NULL; |
| 428 | return E_FAIL; |
| 429 | } |
| 430 | |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 431 | *fontFile = SkRefComPtr(fCurrentFile.get()); |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 432 | return S_OK; |
| 433 | } |
| 434 | |
| 435 | class StreamFontCollectionLoader : public IDWriteFontCollectionLoader { |
| 436 | public: |
| 437 | // IUnknown methods |
| 438 | virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void** ppvObject); |
| 439 | virtual ULONG STDMETHODCALLTYPE AddRef(); |
| 440 | virtual ULONG STDMETHODCALLTYPE Release(); |
| 441 | |
| 442 | // IDWriteFontCollectionLoader methods |
| 443 | virtual HRESULT STDMETHODCALLTYPE CreateEnumeratorFromKey( |
| 444 | IDWriteFactory* factory, |
| 445 | void const* collectionKey, |
| 446 | UINT32 collectionKeySize, |
| 447 | IDWriteFontFileEnumerator** fontFileEnumerator); |
| 448 | |
| 449 | static HRESULT Create(IDWriteFontFileLoader* fontFileLoader, |
| 450 | StreamFontCollectionLoader** streamFontCollectionLoader) { |
| 451 | *streamFontCollectionLoader = new StreamFontCollectionLoader(fontFileLoader); |
| 452 | if (NULL == streamFontCollectionLoader) { |
| 453 | return E_OUTOFMEMORY; |
| 454 | } |
| 455 | return S_OK; |
| 456 | } |
| 457 | private: |
| 458 | StreamFontCollectionLoader(IDWriteFontFileLoader* fontFileLoader) |
| 459 | : fRefCount(1) |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 460 | , fFontFileLoader(SkRefComPtr(fontFileLoader)) |
| 461 | { } |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 462 | |
| 463 | ULONG fRefCount; |
| 464 | SkTScopedComPtr<IDWriteFontFileLoader> fFontFileLoader; |
| 465 | }; |
| 466 | |
| 467 | HRESULT StreamFontCollectionLoader::QueryInterface(REFIID iid, void** ppvObject) { |
| 468 | if (iid == IID_IUnknown || iid == __uuidof(IDWriteFontCollectionLoader)) { |
| 469 | *ppvObject = this; |
| 470 | AddRef(); |
| 471 | return S_OK; |
| 472 | } else { |
| 473 | *ppvObject = NULL; |
| 474 | return E_NOINTERFACE; |
| 475 | } |
| 476 | } |
| 477 | |
| 478 | ULONG StreamFontCollectionLoader::AddRef() { |
| 479 | return InterlockedIncrement(&fRefCount); |
| 480 | } |
| 481 | |
| 482 | ULONG StreamFontCollectionLoader::Release() { |
| 483 | ULONG newCount = InterlockedDecrement(&fRefCount); |
| 484 | if (0 == newCount) { |
| 485 | delete this; |
| 486 | } |
| 487 | return newCount; |
| 488 | } |
| 489 | |
| 490 | HRESULT StreamFontCollectionLoader::CreateEnumeratorFromKey( |
| 491 | IDWriteFactory* factory, |
| 492 | void const* collectionKey, |
| 493 | UINT32 collectionKeySize, |
| 494 | IDWriteFontFileEnumerator** fontFileEnumerator) |
| 495 | { |
| 496 | SkTScopedComPtr<StreamFontFileEnumerator> enumerator; |
| 497 | HR(StreamFontFileEnumerator::Create(factory, fFontFileLoader.get(), &enumerator)); |
| 498 | *fontFileEnumerator = enumerator.release(); |
| 499 | return S_OK; |
| 500 | } |
| 501 | |
| 502 | /////////////////////////////////////////////////////////////////////////////// |
| 503 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 504 | static SkTypeface::Style get_style(IDWriteFont* font) { |
| 505 | int style = SkTypeface::kNormal; |
| 506 | DWRITE_FONT_WEIGHT weight = font->GetWeight(); |
| 507 | if (DWRITE_FONT_WEIGHT_DEMI_BOLD <= weight) { |
| 508 | style |= SkTypeface::kBold; |
| 509 | } |
| 510 | DWRITE_FONT_STYLE angle = font->GetStyle(); |
| 511 | if (DWRITE_FONT_STYLE_OBLIQUE == angle || DWRITE_FONT_STYLE_ITALIC == angle) { |
| 512 | style |= SkTypeface::kItalic; |
| 513 | } |
| 514 | return static_cast<SkTypeface::Style>(style); |
| 515 | } |
| 516 | |
| 517 | class DWriteFontTypeface : public SkTypeface { |
| 518 | private: |
| 519 | DWriteFontTypeface(SkTypeface::Style style, SkFontID fontID, |
| 520 | IDWriteFontFace* fontFace, |
| 521 | IDWriteFont* font, |
| 522 | IDWriteFontFamily* fontFamily, |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 523 | StreamFontFileLoader* fontFileLoader = NULL, |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 524 | IDWriteFontCollectionLoader* fontCollectionLoader = NULL) |
| 525 | : SkTypeface(style, fontID, false) |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 526 | , fDWriteFontCollectionLoader(SkSafeRefComPtr(fontCollectionLoader)) |
| 527 | , fDWriteFontFileLoader(SkSafeRefComPtr(fontFileLoader)) |
| 528 | , fDWriteFontFamily(SkRefComPtr(fontFamily)) |
| 529 | , fDWriteFont(SkRefComPtr(font)) |
| 530 | , fDWriteFontFace(SkRefComPtr(fontFace)) |
| 531 | { } |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 532 | |
| 533 | public: |
| 534 | SkTScopedComPtr<IDWriteFontCollectionLoader> fDWriteFontCollectionLoader; |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 535 | SkTScopedComPtr<StreamFontFileLoader> fDWriteFontFileLoader; |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 536 | SkTScopedComPtr<IDWriteFontFamily> fDWriteFontFamily; |
| 537 | SkTScopedComPtr<IDWriteFont> fDWriteFont; |
| 538 | SkTScopedComPtr<IDWriteFontFace> fDWriteFontFace; |
| 539 | |
| 540 | static DWriteFontTypeface* Create(IDWriteFontFace* fontFace, |
| 541 | IDWriteFont* font, |
| 542 | IDWriteFontFamily* fontFamily, |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 543 | StreamFontFileLoader* fontFileLoader = NULL, |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 544 | IDWriteFontCollectionLoader* fontCollectionLoader = NULL) { |
| 545 | SkTypeface::Style style = get_style(font); |
| 546 | SkFontID fontID = SkTypefaceCache::NewFontID(); |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 547 | return SkNEW_ARGS(DWriteFontTypeface, (style, fontID, |
| 548 | fontFace, font, fontFamily, |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 549 | fontFileLoader, fontCollectionLoader)); |
| 550 | } |
| 551 | |
| 552 | ~DWriteFontTypeface() { |
| 553 | if (fDWriteFontCollectionLoader.get() == NULL) return; |
| 554 | |
| 555 | IDWriteFactory* factory; |
| 556 | HRVM(get_dwrite_factory(&factory), "Could not get factory."); |
| 557 | HRV(factory->UnregisterFontCollectionLoader(fDWriteFontCollectionLoader.get())); |
| 558 | HRV(factory->UnregisterFontFileLoader(fDWriteFontFileLoader.get())); |
| 559 | } |
reed@google.com | 0da4861 | 2013-03-19 16:06:52 +0000 | [diff] [blame] | 560 | |
| 561 | protected: |
reed@google.com | 177dc6e | 2013-03-21 20:55:10 +0000 | [diff] [blame] | 562 | virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE; |
reed@google.com | 0da4861 | 2013-03-19 16:06:52 +0000 | [diff] [blame] | 563 | virtual SkScalerContext* onCreateScalerContext(const SkDescriptor*) const SK_OVERRIDE; |
| 564 | virtual void onFilterRec(SkScalerContextRec*) const SK_OVERRIDE; |
reed@google.com | 2689f61 | 2013-03-20 20:01:47 +0000 | [diff] [blame] | 565 | virtual SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics( |
| 566 | SkAdvancedTypefaceMetrics::PerGlyphInfo, |
| 567 | const uint32_t*, uint32_t) const SK_OVERRIDE; |
reed@google.com | 5526ede | 2013-03-25 13:03:37 +0000 | [diff] [blame] | 568 | virtual void onGetFontDescriptor(SkFontDescriptor*, bool*) const SK_OVERRIDE; |
bungeman@google.com | 7bdd614 | 2013-07-15 19:42:57 +0000 | [diff] [blame] | 569 | virtual int onCountGlyphs() const SK_OVERRIDE; |
| 570 | virtual int onGetUPEM() const SK_OVERRIDE; |
bungeman@google.com | 839702b | 2013-08-07 17:09:22 +0000 | [diff] [blame] | 571 | virtual SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const SK_OVERRIDE; |
bungeman@google.com | b10b51f | 2013-08-01 20:18:41 +0000 | [diff] [blame] | 572 | virtual int onGetTableTags(SkFontTableTag tags[]) const SK_OVERRIDE; |
| 573 | virtual size_t onGetTableData(SkFontTableTag, size_t offset, |
| 574 | size_t length, void* data) const SK_OVERRIDE; |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 575 | virtual SkTypeface* onRefMatchingStyle(Style) const SK_OVERRIDE; |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 576 | }; |
| 577 | |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 578 | class SkScalerContext_DW : public SkScalerContext { |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 579 | public: |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 580 | SkScalerContext_DW(DWriteFontTypeface*, const SkDescriptor* desc); |
| 581 | virtual ~SkScalerContext_DW(); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 582 | |
| 583 | protected: |
| 584 | virtual unsigned generateGlyphCount() SK_OVERRIDE; |
| 585 | virtual uint16_t generateCharToGlyph(SkUnichar uni) SK_OVERRIDE; |
| 586 | virtual void generateAdvance(SkGlyph* glyph) SK_OVERRIDE; |
| 587 | virtual void generateMetrics(SkGlyph* glyph) SK_OVERRIDE; |
bungeman@google.com | a76de72 | 2012-10-26 19:35:54 +0000 | [diff] [blame] | 588 | virtual void generateImage(const SkGlyph& glyph) SK_OVERRIDE; |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 589 | virtual void generatePath(const SkGlyph& glyph, SkPath* path) SK_OVERRIDE; |
| 590 | virtual void generateFontMetrics(SkPaint::FontMetrics* mX, |
| 591 | SkPaint::FontMetrics* mY) SK_OVERRIDE; |
| 592 | |
| 593 | private: |
| 594 | DWriteOffscreen fOffscreen; |
| 595 | DWRITE_MATRIX fXform; |
| 596 | SkAutoTUnref<DWriteFontTypeface> fTypeface; |
| 597 | int fGlyphCount; |
| 598 | }; |
| 599 | |
| 600 | #define SK_DWRITE_DEFAULT_FONT_NAMED 1 |
| 601 | #define SK_DWRITE_DEFAULT_FONT_MESSAGE 2 |
| 602 | #define SK_DWRITE_DEFAULT_FONT_THEME 3 |
| 603 | #define SK_DWRITE_DEFAULT_FONT_SHELLDLG 4 |
| 604 | #define SK_DWRITE_DEFAULT_FONT_GDI 5 |
| 605 | #define SK_DWRITE_DEFAULT_FONT_STRATEGY SK_DWRITE_DEFAULT_FONT_MESSAGE |
| 606 | |
| 607 | static HRESULT get_default_font(IDWriteFont** font) { |
| 608 | IDWriteFactory* factory; |
| 609 | HRM(get_dwrite_factory(&factory), "Could not get factory."); |
| 610 | |
| 611 | #if SK_DWRITE_DEFAULT_FONT_STRATEGY == SK_DWRITE_DEFAULT_FONT_NAMED |
| 612 | SkTScopedComPtr<IDWriteFontCollection> sysFonts; |
| 613 | HRM(factory->GetSystemFontCollection(&sysFonts, false), |
| 614 | "Could not get system font collection."); |
| 615 | |
| 616 | UINT32 index; |
| 617 | BOOL exists; |
| 618 | //hr = sysFonts->FindFamilyName(L"Georgia", &index, &exists); |
| 619 | HRM(sysFonts->FindFamilyName(L"Microsoft Sans Serif", &index, &exists), |
| 620 | "Could not access family names."); |
| 621 | |
| 622 | if (!exists) { |
| 623 | SkDEBUGF(("The hard coded font family does not exist.")); |
| 624 | return E_UNEXPECTED; |
| 625 | } |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 626 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 627 | SkTScopedComPtr<IDWriteFontFamily> fontFamily; |
| 628 | HRM(sysFonts->GetFontFamily(index, &fontFamily), |
| 629 | "Could not load the requested font family."); |
| 630 | |
| 631 | HRM(fontFamily->GetFont(0, font), "Could not get first font from family."); |
| 632 | |
| 633 | #elif SK_DWRITE_DEFAULT_FONT_STRATEGY == SK_DWRITE_DEFAULT_FONT_MESSAGE |
| 634 | SkTScopedComPtr<IDWriteGdiInterop> gdi; |
| 635 | HRM(factory->GetGdiInterop(&gdi), "Could not get GDI interop."); |
| 636 | |
| 637 | NONCLIENTMETRICSW metrics; |
| 638 | metrics.cbSize = sizeof(metrics); |
| 639 | if (0 == SystemParametersInfoW(SPI_GETNONCLIENTMETRICS, |
| 640 | sizeof(metrics), |
| 641 | &metrics, |
| 642 | 0)) { |
| 643 | return E_UNEXPECTED; |
| 644 | } |
| 645 | HRM(gdi->CreateFontFromLOGFONT(&metrics.lfMessageFont, font), |
| 646 | "Could not create DWrite font from LOGFONT."); |
| 647 | |
| 648 | #elif SK_DWRITE_DEFAULT_FONT_STRATEGY == SK_DWRITE_DEFAULT_FONT_THEME |
| 649 | //Theme body font? |
| 650 | |
| 651 | #elif SK_DWRITE_DEFAULT_FONT_STRATEGY == SK_DWRITE_DEFAULT_FONT_SHELLDLG |
| 652 | //"MS Shell Dlg" or "MS Shell Dlg 2"? |
| 653 | |
| 654 | #elif SK_DWRITE_DEFAULT_FONT_STRATEGY == SK_DWRITE_DEFAULT_FONT_GDI |
| 655 | //Never works. |
| 656 | SkTScopedComPtr<IDWriteGdiInterop> gdi; |
| 657 | HRM(factory->GetGdiInterop(&gdi), "Could not get GDI interop."); |
| 658 | |
| 659 | static LOGFONTW gDefaultFont = {}; |
| 660 | gDefaultFont.lfFaceName |
| 661 | HRM(gdi->CreateFontFromLOGFONT(&gDefaultFont, font), |
| 662 | "Could not create DWrite font from LOGFONT."; |
| 663 | #endif |
| 664 | return S_OK; |
| 665 | } |
| 666 | |
| 667 | static bool are_same(IUnknown* a, IUnknown* b) { |
| 668 | SkTScopedComPtr<IUnknown> iunkA; |
| 669 | if (FAILED(a->QueryInterface(&iunkA))) { |
| 670 | return false; |
| 671 | } |
| 672 | |
| 673 | SkTScopedComPtr<IUnknown> iunkB; |
| 674 | if (FAILED(b->QueryInterface(&iunkB))) { |
| 675 | return false; |
| 676 | } |
| 677 | |
| 678 | return iunkA.get() == iunkB.get(); |
| 679 | } |
| 680 | static bool FindByDWriteFont(SkTypeface* face, SkTypeface::Style requestedStyle, void* ctx) { |
| 681 | //Check to see if the two fonts are identical. |
| 682 | DWriteFontTypeface* dwFace = reinterpret_cast<DWriteFontTypeface*>(face); |
| 683 | IDWriteFont* dwFont = reinterpret_cast<IDWriteFont*>(ctx); |
| 684 | if (are_same(dwFace->fDWriteFont.get(), dwFont)) { |
| 685 | return true; |
| 686 | } |
| 687 | |
| 688 | //Check if the two fonts share the same loader and have the same key. |
| 689 | SkTScopedComPtr<IDWriteFontFace> dwFaceFontFace; |
| 690 | SkTScopedComPtr<IDWriteFontFace> dwFontFace; |
| 691 | HRB(dwFace->fDWriteFont->CreateFontFace(&dwFaceFontFace)); |
| 692 | HRB(dwFont->CreateFontFace(&dwFontFace)); |
| 693 | if (are_same(dwFaceFontFace.get(), dwFontFace.get())) { |
| 694 | return true; |
| 695 | } |
| 696 | |
| 697 | UINT32 dwFaceNumFiles; |
| 698 | UINT32 dwNumFiles; |
| 699 | HRB(dwFaceFontFace->GetFiles(&dwFaceNumFiles, NULL)); |
| 700 | HRB(dwFontFace->GetFiles(&dwNumFiles, NULL)); |
| 701 | if (dwFaceNumFiles != dwNumFiles) { |
| 702 | return false; |
| 703 | } |
| 704 | |
| 705 | SkTScopedComPtr<IDWriteFontFile> dwFaceFontFile; |
| 706 | SkTScopedComPtr<IDWriteFontFile> dwFontFile; |
| 707 | HRB(dwFaceFontFace->GetFiles(&dwFaceNumFiles, &dwFaceFontFile)); |
| 708 | HRB(dwFontFace->GetFiles(&dwNumFiles, &dwFontFile)); |
| 709 | |
| 710 | //for (each file) { //we currently only admit fonts from one file. |
| 711 | SkTScopedComPtr<IDWriteFontFileLoader> dwFaceFontFileLoader; |
| 712 | SkTScopedComPtr<IDWriteFontFileLoader> dwFontFileLoader; |
| 713 | HRB(dwFaceFontFile->GetLoader(&dwFaceFontFileLoader)); |
| 714 | HRB(dwFontFile->GetLoader(&dwFontFileLoader)); |
| 715 | if (!are_same(dwFaceFontFileLoader.get(), dwFontFileLoader.get())) { |
| 716 | return false; |
| 717 | } |
| 718 | //} |
| 719 | |
| 720 | const void* dwFaceFontRefKey; |
| 721 | UINT32 dwFaceFontRefKeySize; |
| 722 | const void* dwFontRefKey; |
| 723 | UINT32 dwFontRefKeySize; |
| 724 | HRB(dwFaceFontFile->GetReferenceKey(&dwFaceFontRefKey, &dwFaceFontRefKeySize)); |
| 725 | HRB(dwFontFile->GetReferenceKey(&dwFontRefKey, &dwFontRefKeySize)); |
| 726 | if (dwFaceFontRefKeySize != dwFontRefKeySize) { |
| 727 | return false; |
| 728 | } |
| 729 | if (0 != memcmp(dwFaceFontRefKey, dwFontRefKey, dwFontRefKeySize)) { |
| 730 | return false; |
| 731 | } |
| 732 | |
| 733 | //TODO: better means than comparing name strings? |
| 734 | //NOTE: .tfc and fake bold/italic will end up here. |
| 735 | SkTScopedComPtr<IDWriteFontFamily> dwFaceFontFamily; |
| 736 | SkTScopedComPtr<IDWriteFontFamily> dwFontFamily; |
| 737 | HRB(dwFace->fDWriteFont->GetFontFamily(&dwFaceFontFamily)); |
| 738 | HRB(dwFont->GetFontFamily(&dwFontFamily)); |
| 739 | |
| 740 | SkTScopedComPtr<IDWriteLocalizedStrings> dwFaceFontFamilyNames; |
| 741 | SkTScopedComPtr<IDWriteLocalizedStrings> dwFaceFontNames; |
| 742 | HRB(dwFaceFontFamily->GetFamilyNames(&dwFaceFontFamilyNames)); |
| 743 | HRB(dwFace->fDWriteFont->GetFaceNames(&dwFaceFontNames)); |
| 744 | |
| 745 | SkTScopedComPtr<IDWriteLocalizedStrings> dwFontFamilyNames; |
| 746 | SkTScopedComPtr<IDWriteLocalizedStrings> dwFontNames; |
| 747 | HRB(dwFontFamily->GetFamilyNames(&dwFontFamilyNames)); |
| 748 | HRB(dwFont->GetFaceNames(&dwFontNames)); |
| 749 | |
| 750 | UINT32 dwFaceFontFamilyNameLength; |
| 751 | UINT32 dwFaceFontNameLength; |
| 752 | HRB(dwFaceFontFamilyNames->GetStringLength(0, &dwFaceFontFamilyNameLength)); |
| 753 | HRB(dwFaceFontNames->GetStringLength(0, &dwFaceFontNameLength)); |
| 754 | |
| 755 | UINT32 dwFontFamilyNameLength; |
| 756 | UINT32 dwFontNameLength; |
| 757 | HRB(dwFontFamilyNames->GetStringLength(0, &dwFontFamilyNameLength)); |
| 758 | HRB(dwFontNames->GetStringLength(0, &dwFontNameLength)); |
| 759 | |
| 760 | if (dwFaceFontFamilyNameLength != dwFontFamilyNameLength || |
| 761 | dwFaceFontNameLength != dwFontNameLength) |
| 762 | { |
| 763 | return false; |
| 764 | } |
| 765 | |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 766 | SkSMallocWCHAR dwFaceFontFamilyNameChar(dwFaceFontFamilyNameLength+1); |
| 767 | SkSMallocWCHAR dwFaceFontNameChar(dwFaceFontNameLength+1); |
| 768 | HRB(dwFaceFontFamilyNames->GetString(0, dwFaceFontFamilyNameChar.get(), dwFaceFontFamilyNameLength+1)); |
| 769 | HRB(dwFaceFontNames->GetString(0, dwFaceFontNameChar.get(), dwFaceFontNameLength+1)); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 770 | |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 771 | SkSMallocWCHAR dwFontFamilyNameChar(dwFontFamilyNameLength+1); |
| 772 | SkSMallocWCHAR dwFontNameChar(dwFontNameLength+1); |
| 773 | HRB(dwFontFamilyNames->GetString(0, dwFontFamilyNameChar.get(), dwFontFamilyNameLength+1)); |
| 774 | HRB(dwFontNames->GetString(0, dwFontNameChar.get(), dwFontNameLength+1)); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 775 | |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 776 | return wcscmp(dwFaceFontFamilyNameChar.get(), dwFontFamilyNameChar.get()) == 0 && |
| 777 | wcscmp(dwFaceFontNameChar.get(), dwFontNameChar.get()) == 0; |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 778 | } |
| 779 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 780 | void SkDWriteFontFromTypeface(const SkTypeface* face, IDWriteFont** font) { |
| 781 | if (NULL == face) { |
| 782 | HRVM(get_default_font(font), "Could not get default font."); |
| 783 | } else { |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 784 | *font = SkRefComPtr(static_cast<const DWriteFontTypeface*>(face)->fDWriteFont.get()); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 785 | } |
| 786 | } |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 787 | |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 788 | SkScalerContext_DW::SkScalerContext_DW(DWriteFontTypeface* typeface, |
reed@google.com | 0da4861 | 2013-03-19 16:06:52 +0000 | [diff] [blame] | 789 | const SkDescriptor* desc) |
| 790 | : SkScalerContext(typeface, desc) |
| 791 | , fTypeface(SkRef(typeface)) |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 792 | , fGlyphCount(-1) { |
| 793 | SkAutoMutexAcquire ac(gFTMutex); |
| 794 | |
| 795 | fXform.m11 = SkScalarToFloat(fRec.fPost2x2[0][0]); |
| 796 | fXform.m12 = SkScalarToFloat(fRec.fPost2x2[1][0]); |
| 797 | fXform.m21 = SkScalarToFloat(fRec.fPost2x2[0][1]); |
| 798 | fXform.m22 = SkScalarToFloat(fRec.fPost2x2[1][1]); |
| 799 | fXform.dx = 0; |
| 800 | fXform.dy = 0; |
| 801 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 802 | fOffscreen.init(fTypeface->fDWriteFontFace.get(), fXform, SkScalarToFloat(fRec.fTextSize)); |
| 803 | } |
| 804 | |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 805 | SkScalerContext_DW::~SkScalerContext_DW() { |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 806 | } |
| 807 | |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 808 | unsigned SkScalerContext_DW::generateGlyphCount() { |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 809 | if (fGlyphCount < 0) { |
| 810 | fGlyphCount = fTypeface->fDWriteFontFace->GetGlyphCount(); |
| 811 | } |
| 812 | return fGlyphCount; |
| 813 | } |
| 814 | |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 815 | uint16_t SkScalerContext_DW::generateCharToGlyph(SkUnichar uni) { |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 816 | uint16_t index = 0; |
| 817 | fTypeface->fDWriteFontFace->GetGlyphIndices(reinterpret_cast<UINT32*>(&uni), 1, &index); |
| 818 | return index; |
| 819 | } |
| 820 | |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 821 | void SkScalerContext_DW::generateAdvance(SkGlyph* glyph) { |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 822 | //Delta is the difference between the right/left side bearing metric |
| 823 | //and where the right/left side bearing ends up after hinting. |
| 824 | //DirectWrite does not provide this information. |
| 825 | glyph->fRsbDelta = 0; |
| 826 | glyph->fLsbDelta = 0; |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 827 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 828 | glyph->fAdvanceX = 0; |
| 829 | glyph->fAdvanceY = 0; |
| 830 | |
| 831 | uint16_t glyphId = glyph->getGlyphID(); |
| 832 | DWRITE_GLYPH_METRICS gm; |
| 833 | HRVM(fTypeface->fDWriteFontFace->GetDesignGlyphMetrics(&glyphId, 1, &gm), |
| 834 | "Could not get design metrics."); |
| 835 | |
| 836 | DWRITE_FONT_METRICS dwfm; |
| 837 | fTypeface->fDWriteFontFace->GetMetrics(&dwfm); |
| 838 | |
| 839 | SkScalar advanceX = SkScalarMulDiv(fRec.fTextSize, |
| 840 | SkIntToScalar(gm.advanceWidth), |
| 841 | SkIntToScalar(dwfm.designUnitsPerEm)); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 842 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 843 | if (!(fRec.fFlags & kSubpixelPositioning_Flag)) { |
| 844 | advanceX = SkScalarRoundToScalar(advanceX); |
| 845 | } |
| 846 | |
| 847 | SkVector vecs[1] = { { advanceX, 0 } }; |
| 848 | SkMatrix mat; |
bungeman@google.com | 091f51b | 2013-01-10 18:56:18 +0000 | [diff] [blame] | 849 | fRec.getMatrixFrom2x2(&mat); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 850 | mat.mapVectors(vecs, SK_ARRAY_COUNT(vecs)); |
| 851 | |
| 852 | glyph->fAdvanceX = SkScalarToFixed(vecs[0].fX); |
| 853 | glyph->fAdvanceY = SkScalarToFixed(vecs[0].fY); |
| 854 | } |
| 855 | |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 856 | void SkScalerContext_DW::generateMetrics(SkGlyph* glyph) { |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 857 | glyph->fWidth = 0; |
| 858 | |
| 859 | this->generateAdvance(glyph); |
| 860 | |
| 861 | //Measure raster size. |
| 862 | fXform.dx = SkFixedToFloat(glyph->getSubXFixed()); |
| 863 | fXform.dy = SkFixedToFloat(glyph->getSubYFixed()); |
| 864 | |
| 865 | FLOAT advance = 0; |
| 866 | |
| 867 | UINT16 glyphId = glyph->getGlyphID(); |
| 868 | |
| 869 | DWRITE_GLYPH_OFFSET offset; |
| 870 | offset.advanceOffset = 0.0f; |
| 871 | offset.ascenderOffset = 0.0f; |
| 872 | |
| 873 | DWRITE_GLYPH_RUN run; |
| 874 | run.glyphCount = 1; |
| 875 | run.glyphAdvances = &advance; |
| 876 | run.fontFace = fTypeface->fDWriteFontFace.get(); |
| 877 | run.fontEmSize = SkScalarToFloat(fRec.fTextSize); |
| 878 | run.bidiLevel = 0; |
| 879 | run.glyphIndices = &glyphId; |
| 880 | run.isSideways = FALSE; |
| 881 | run.glyphOffsets = &offset; |
| 882 | |
| 883 | IDWriteFactory* factory; |
| 884 | HRVM(get_dwrite_factory(&factory), "Could not get factory."); |
| 885 | |
| 886 | const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; |
| 887 | DWRITE_RENDERING_MODE renderingMode; |
| 888 | DWRITE_TEXTURE_TYPE textureType; |
| 889 | if (isBW) { |
| 890 | renderingMode = DWRITE_RENDERING_MODE_ALIASED; |
| 891 | textureType = DWRITE_TEXTURE_ALIASED_1x1; |
| 892 | } else { |
| 893 | renderingMode = DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL_SYMMETRIC; |
| 894 | textureType = DWRITE_TEXTURE_CLEARTYPE_3x1; |
| 895 | } |
| 896 | |
| 897 | SkTScopedComPtr<IDWriteGlyphRunAnalysis> glyphRunAnalysis; |
| 898 | HRVM(factory->CreateGlyphRunAnalysis(&run, |
| 899 | 1.0f, // pixelsPerDip, |
| 900 | &fXform, |
| 901 | renderingMode, |
| 902 | DWRITE_MEASURING_MODE_NATURAL, |
| 903 | 0.0f, // baselineOriginX, |
| 904 | 0.0f, // baselineOriginY, |
| 905 | &glyphRunAnalysis), |
| 906 | "Could not create glyph run analysis."); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 907 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 908 | RECT bbox; |
| 909 | HRVM(glyphRunAnalysis->GetAlphaTextureBounds(textureType, &bbox), |
| 910 | "Could not get texture bounds."); |
| 911 | |
| 912 | glyph->fWidth = SkToU16(bbox.right - bbox.left); |
| 913 | glyph->fHeight = SkToU16(bbox.bottom - bbox.top); |
| 914 | glyph->fLeft = SkToS16(bbox.left); |
| 915 | glyph->fTop = SkToS16(bbox.top); |
| 916 | } |
| 917 | |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 918 | void SkScalerContext_DW::generateFontMetrics(SkPaint::FontMetrics* mx, |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 919 | SkPaint::FontMetrics* my) { |
| 920 | if (!(mx || my)) |
| 921 | return; |
| 922 | |
bungeman@google.com | e1b9bad | 2013-08-27 21:51:37 +0000 | [diff] [blame] | 923 | if (mx) { |
| 924 | sk_bzero(mx, sizeof(*mx)); |
| 925 | } |
| 926 | if (my) { |
| 927 | sk_bzero(my, sizeof(*my)); |
| 928 | } |
| 929 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 930 | DWRITE_FONT_METRICS dwfm; |
| 931 | fTypeface->fDWriteFontFace->GetMetrics(&dwfm); |
| 932 | |
bungeman@google.com | e1b9bad | 2013-08-27 21:51:37 +0000 | [diff] [blame] | 933 | SkScalar upem = SkIntToScalar(dwfm.designUnitsPerEm); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 934 | if (mx) { |
bungeman@google.com | 7687578 | 2013-08-28 03:16:02 +0000 | [diff] [blame] | 935 | mx->fTop = -fRec.fTextSize * SkIntToScalar(dwfm.ascent) / upem; |
| 936 | mx->fAscent = mx->fTop; |
| 937 | mx->fDescent = fRec.fTextSize * SkIntToScalar(dwfm.descent) / upem; |
| 938 | mx->fBottom = mx->fDescent; |
| 939 | mx->fLeading = fRec.fTextSize * SkIntToScalar(dwfm.lineGap) / upem; |
| 940 | mx->fXHeight = fRec.fTextSize * SkIntToScalar(dwfm.xHeight) / upem; |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 941 | } |
| 942 | |
| 943 | if (my) { |
bungeman@google.com | e1b9bad | 2013-08-27 21:51:37 +0000 | [diff] [blame] | 944 | my->fTop = -fRec.fTextSize * SkIntToScalar(dwfm.ascent) / upem; |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 945 | my->fAscent = my->fTop; |
bungeman@google.com | e1b9bad | 2013-08-27 21:51:37 +0000 | [diff] [blame] | 946 | my->fDescent = fRec.fTextSize * SkIntToScalar(dwfm.descent) / upem; |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 947 | my->fBottom = my->fDescent; |
bungeman@google.com | e1b9bad | 2013-08-27 21:51:37 +0000 | [diff] [blame] | 948 | my->fLeading = fRec.fTextSize * SkIntToScalar(dwfm.lineGap) / upem; |
| 949 | my->fXHeight = fRec.fTextSize * SkIntToScalar(dwfm.xHeight) / upem; |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 950 | } |
| 951 | } |
| 952 | |
| 953 | /////////////////////////////////////////////////////////////////////////////// |
| 954 | |
| 955 | #include "SkColorPriv.h" |
| 956 | |
| 957 | static void bilevel_to_bw(const uint8_t* SK_RESTRICT src, const SkGlyph& glyph) { |
| 958 | const int width = glyph.fWidth; |
| 959 | const size_t dstRB = (width + 7) >> 3; |
| 960 | uint8_t* SK_RESTRICT dst = static_cast<uint8_t*>(glyph.fImage); |
| 961 | |
| 962 | int byteCount = width >> 3; |
| 963 | int bitCount = width & 7; |
| 964 | |
| 965 | for (int y = 0; y < glyph.fHeight; ++y) { |
| 966 | if (byteCount > 0) { |
| 967 | for (int i = 0; i < byteCount; ++i) { |
| 968 | unsigned byte = 0; |
| 969 | byte |= src[0] & (1 << 7); |
| 970 | byte |= src[1] & (1 << 6); |
| 971 | byte |= src[2] & (1 << 5); |
| 972 | byte |= src[3] & (1 << 4); |
| 973 | byte |= src[4] & (1 << 3); |
| 974 | byte |= src[5] & (1 << 2); |
| 975 | byte |= src[6] & (1 << 1); |
| 976 | byte |= src[7] & (1 << 0); |
| 977 | dst[i] = byte; |
| 978 | src += 8; |
| 979 | } |
| 980 | } |
| 981 | if (bitCount > 0) { |
| 982 | unsigned byte = 0; |
| 983 | unsigned mask = 0x80; |
| 984 | for (int i = 0; i < bitCount; i++) { |
| 985 | byte |= (src[i]) & mask; |
| 986 | mask >>= 1; |
| 987 | } |
| 988 | dst[byteCount] = byte; |
| 989 | } |
| 990 | src += bitCount; |
| 991 | dst += dstRB; |
| 992 | } |
| 993 | } |
| 994 | |
| 995 | template<bool APPLY_PREBLEND> |
| 996 | static void rgb_to_a8(const uint8_t* SK_RESTRICT src, const SkGlyph& glyph, const uint8_t* table8) { |
| 997 | const size_t dstRB = glyph.rowBytes(); |
| 998 | const U16CPU width = glyph.fWidth; |
| 999 | uint8_t* SK_RESTRICT dst = static_cast<uint8_t*>(glyph.fImage); |
| 1000 | |
| 1001 | for (U16CPU y = 0; y < glyph.fHeight; y++) { |
| 1002 | for (U16CPU i = 0; i < width; i++) { |
| 1003 | U8CPU r = *(src++); |
| 1004 | U8CPU g = *(src++); |
| 1005 | U8CPU b = *(src++); |
| 1006 | dst[i] = sk_apply_lut_if<APPLY_PREBLEND>((r + g + b) / 3, table8); |
| 1007 | } |
| 1008 | dst = (uint8_t*)((char*)dst + dstRB); |
| 1009 | } |
| 1010 | } |
| 1011 | |
| 1012 | template<bool APPLY_PREBLEND> |
| 1013 | static void rgb_to_lcd16(const uint8_t* SK_RESTRICT src, const SkGlyph& glyph, |
| 1014 | const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { |
| 1015 | const size_t dstRB = glyph.rowBytes(); |
| 1016 | const U16CPU width = glyph.fWidth; |
| 1017 | uint16_t* SK_RESTRICT dst = static_cast<uint16_t*>(glyph.fImage); |
| 1018 | |
| 1019 | for (U16CPU y = 0; y < glyph.fHeight; y++) { |
| 1020 | for (U16CPU i = 0; i < width; i++) { |
| 1021 | U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>(*(src++), tableR); |
| 1022 | U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>(*(src++), tableG); |
| 1023 | U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>(*(src++), tableB); |
| 1024 | dst[i] = SkPack888ToRGB16(r, g, b); |
| 1025 | } |
| 1026 | dst = (uint16_t*)((char*)dst + dstRB); |
| 1027 | } |
| 1028 | } |
| 1029 | |
| 1030 | template<bool APPLY_PREBLEND> |
| 1031 | static void rgb_to_lcd32(const uint8_t* SK_RESTRICT src, const SkGlyph& glyph, |
| 1032 | const uint8_t* tableR, const uint8_t* tableG, const uint8_t* tableB) { |
| 1033 | const size_t dstRB = glyph.rowBytes(); |
| 1034 | const U16CPU width = glyph.fWidth; |
| 1035 | SkPMColor* SK_RESTRICT dst = static_cast<SkPMColor*>(glyph.fImage); |
| 1036 | |
| 1037 | for (U16CPU y = 0; y < glyph.fHeight; y++) { |
| 1038 | for (U16CPU i = 0; i < width; i++) { |
| 1039 | U8CPU r = sk_apply_lut_if<APPLY_PREBLEND>(*(src++), tableR); |
| 1040 | U8CPU g = sk_apply_lut_if<APPLY_PREBLEND>(*(src++), tableG); |
| 1041 | U8CPU b = sk_apply_lut_if<APPLY_PREBLEND>(*(src++), tableB); |
| 1042 | dst[i] = SkPackARGB32(0xFF, r, g, b); |
| 1043 | } |
| 1044 | dst = (SkPMColor*)((char*)dst + dstRB); |
| 1045 | } |
| 1046 | } |
| 1047 | |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 1048 | void SkScalerContext_DW::generateImage(const SkGlyph& glyph) { |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1049 | SkAutoMutexAcquire ac(gFTMutex); |
| 1050 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1051 | const bool isBW = SkMask::kBW_Format == fRec.fMaskFormat; |
| 1052 | const bool isAA = !isLCD(fRec); |
| 1053 | |
| 1054 | //Create the mask. |
| 1055 | const void* bits = fOffscreen.draw(glyph, isBW); |
| 1056 | if (!bits) { |
| 1057 | sk_bzero(glyph.fImage, glyph.computeImageSize()); |
| 1058 | return; |
| 1059 | } |
| 1060 | |
| 1061 | //Copy the mask into the glyph. |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1062 | const uint8_t* src = (const uint8_t*)bits; |
| 1063 | if (isBW) { |
| 1064 | bilevel_to_bw(src, glyph); |
| 1065 | } else if (isAA) { |
bungeman@google.com | a76de72 | 2012-10-26 19:35:54 +0000 | [diff] [blame] | 1066 | if (fPreBlend.isApplicable()) { |
| 1067 | rgb_to_a8<true>(src, glyph, fPreBlend.fG); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1068 | } else { |
bungeman@google.com | a76de72 | 2012-10-26 19:35:54 +0000 | [diff] [blame] | 1069 | rgb_to_a8<false>(src, glyph, fPreBlend.fG); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1070 | } |
| 1071 | } else if (SkMask::kLCD16_Format == glyph.fMaskFormat) { |
bungeman@google.com | a76de72 | 2012-10-26 19:35:54 +0000 | [diff] [blame] | 1072 | if (fPreBlend.isApplicable()) { |
| 1073 | rgb_to_lcd16<true>(src, glyph, fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1074 | } else { |
bungeman@google.com | a76de72 | 2012-10-26 19:35:54 +0000 | [diff] [blame] | 1075 | rgb_to_lcd16<false>(src, glyph, fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1076 | } |
| 1077 | } else { |
| 1078 | SkASSERT(SkMask::kLCD32_Format == glyph.fMaskFormat); |
bungeman@google.com | a76de72 | 2012-10-26 19:35:54 +0000 | [diff] [blame] | 1079 | if (fPreBlend.isApplicable()) { |
| 1080 | rgb_to_lcd32<true>(src, glyph, fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1081 | } else { |
bungeman@google.com | a76de72 | 2012-10-26 19:35:54 +0000 | [diff] [blame] | 1082 | rgb_to_lcd32<false>(src, glyph, fPreBlend.fR, fPreBlend.fG, fPreBlend.fB); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1083 | } |
| 1084 | } |
| 1085 | } |
| 1086 | |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 1087 | void SkScalerContext_DW::generatePath(const SkGlyph& glyph, SkPath* path) { |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1088 | SkAutoMutexAcquire ac(gFTMutex); |
| 1089 | |
| 1090 | SkASSERT(&glyph && path); |
| 1091 | |
| 1092 | path->reset(); |
| 1093 | |
| 1094 | SkTScopedComPtr<IDWriteGeometrySink> geometryToPath; |
| 1095 | HRVM(SkDWriteGeometrySink::Create(path, &geometryToPath), |
| 1096 | "Could not create geometry to path converter."); |
| 1097 | uint16_t glyphId = glyph.getGlyphID(); |
| 1098 | //TODO: convert to<->from DIUs? This would make a difference if hinting. |
| 1099 | //It may not be needed, it appears that DirectWrite only hints at em size. |
| 1100 | HRVM(fTypeface->fDWriteFontFace->GetGlyphRunOutline(SkScalarToFloat(fRec.fTextSize), |
| 1101 | &glyphId, |
| 1102 | NULL, //advances |
| 1103 | NULL, //offsets |
| 1104 | 1, //num glyphs |
| 1105 | FALSE, //sideways |
| 1106 | FALSE, //rtl |
| 1107 | geometryToPath.get()), |
| 1108 | "Could not create glyph outline."); |
bungeman@google.com | 091f51b | 2013-01-10 18:56:18 +0000 | [diff] [blame] | 1109 | |
| 1110 | SkMatrix mat; |
| 1111 | fRec.getMatrixFrom2x2(&mat); |
| 1112 | path->transform(mat); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1113 | } |
| 1114 | |
reed@google.com | 5526ede | 2013-03-25 13:03:37 +0000 | [diff] [blame] | 1115 | void DWriteFontTypeface::onGetFontDescriptor(SkFontDescriptor* desc, |
| 1116 | bool* isLocalStream) const { |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 1117 | // Get the family name. |
| 1118 | SkTScopedComPtr<IDWriteLocalizedStrings> dwFamilyNames; |
reed@google.com | 5526ede | 2013-03-25 13:03:37 +0000 | [diff] [blame] | 1119 | HRV(fDWriteFontFamily->GetFamilyNames(&dwFamilyNames)); |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 1120 | |
| 1121 | UINT32 dwFamilyNamesLength; |
| 1122 | HRV(dwFamilyNames->GetStringLength(0, &dwFamilyNamesLength)); |
| 1123 | |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1124 | SkSMallocWCHAR dwFamilyNameChar(dwFamilyNamesLength+1); |
| 1125 | HRV(dwFamilyNames->GetString(0, dwFamilyNameChar.get(), dwFamilyNamesLength+1)); |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 1126 | |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1127 | SkString utf8FamilyName; |
| 1128 | HRV(wchar_to_skstring(dwFamilyNameChar.get(), &utf8FamilyName)); |
bungeman@google.com | 94acfb5 | 2012-08-31 15:41:09 +0000 | [diff] [blame] | 1129 | |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1130 | desc->setFamilyName(utf8FamilyName.c_str()); |
reed@google.com | 5526ede | 2013-03-25 13:03:37 +0000 | [diff] [blame] | 1131 | *isLocalStream = SkToBool(fDWriteFontFileLoader.get()); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1132 | } |
| 1133 | |
bungeman@google.com | 7bdd614 | 2013-07-15 19:42:57 +0000 | [diff] [blame] | 1134 | int DWriteFontTypeface::onCountGlyphs() const { |
| 1135 | return fDWriteFontFace->GetGlyphCount(); |
| 1136 | } |
| 1137 | |
| 1138 | int DWriteFontTypeface::onGetUPEM() const { |
| 1139 | DWRITE_FONT_METRICS metrics; |
| 1140 | fDWriteFontFace->GetMetrics(&metrics); |
| 1141 | return metrics.designUnitsPerEm; |
| 1142 | } |
| 1143 | |
bungeman@google.com | a980269 | 2013-08-07 02:45:25 +0000 | [diff] [blame] | 1144 | class LocalizedStrings_IDWriteLocalizedStrings : public SkTypeface::LocalizedStrings { |
| 1145 | public: |
| 1146 | /** Takes ownership of the IDWriteLocalizedStrings. */ |
| 1147 | explicit LocalizedStrings_IDWriteLocalizedStrings(IDWriteLocalizedStrings* strings) |
| 1148 | : fIndex(0), fStrings(strings) |
| 1149 | { } |
| 1150 | |
| 1151 | virtual bool next(SkTypeface::LocalizedString* localizedString) SK_OVERRIDE { |
| 1152 | if (fIndex >= fStrings->GetCount()) { |
| 1153 | return false; |
| 1154 | } |
| 1155 | |
| 1156 | // String |
| 1157 | UINT32 stringLength; |
| 1158 | HRBM(fStrings->GetStringLength(fIndex, &stringLength), "Could not get string length."); |
| 1159 | stringLength += 1; |
| 1160 | |
| 1161 | SkSMallocWCHAR wString(stringLength); |
| 1162 | HRBM(fStrings->GetString(fIndex, wString.get(), stringLength), "Could not get string."); |
| 1163 | |
| 1164 | HRB(wchar_to_skstring(wString.get(), &localizedString->fString)); |
| 1165 | |
| 1166 | // Locale |
| 1167 | UINT32 localeLength; |
| 1168 | HRBM(fStrings->GetLocaleNameLength(fIndex, &localeLength), "Could not get locale length."); |
| 1169 | localeLength += 1; |
| 1170 | |
| 1171 | SkSMallocWCHAR wLocale(localeLength); |
| 1172 | HRBM(fStrings->GetLocaleName(fIndex, wLocale.get(), localeLength), "Could not get locale."); |
| 1173 | |
| 1174 | HRB(wchar_to_skstring(wLocale.get(), &localizedString->fLanguage)); |
| 1175 | |
| 1176 | ++fIndex; |
| 1177 | return true; |
| 1178 | } |
| 1179 | |
| 1180 | private: |
| 1181 | UINT32 fIndex; |
| 1182 | SkTScopedComPtr<IDWriteLocalizedStrings> fStrings; |
| 1183 | }; |
| 1184 | |
bungeman@google.com | 839702b | 2013-08-07 17:09:22 +0000 | [diff] [blame] | 1185 | SkTypeface::LocalizedStrings* DWriteFontTypeface::onCreateFamilyNameIterator() const { |
bungeman@google.com | a980269 | 2013-08-07 02:45:25 +0000 | [diff] [blame] | 1186 | SkTScopedComPtr<IDWriteLocalizedStrings> familyNames; |
| 1187 | HRNM(fDWriteFontFamily->GetFamilyNames(&familyNames), "Could not obtain family names."); |
| 1188 | |
| 1189 | return new LocalizedStrings_IDWriteLocalizedStrings(familyNames.release()); |
| 1190 | } |
| 1191 | |
bungeman@google.com | b10b51f | 2013-08-01 20:18:41 +0000 | [diff] [blame] | 1192 | int DWriteFontTypeface::onGetTableTags(SkFontTableTag tags[]) const { |
| 1193 | DWRITE_FONT_FACE_TYPE type = fDWriteFontFace->GetType(); |
| 1194 | if (type != DWRITE_FONT_FACE_TYPE_CFF && |
| 1195 | type != DWRITE_FONT_FACE_TYPE_TRUETYPE && |
| 1196 | type != DWRITE_FONT_FACE_TYPE_TRUETYPE_COLLECTION) |
| 1197 | { |
| 1198 | return 0; |
| 1199 | } |
| 1200 | |
| 1201 | int ttcIndex; |
| 1202 | SkAutoTUnref<SkStream> stream(this->openStream(&ttcIndex)); |
| 1203 | return stream.get() ? SkFontStream::GetTableTags(stream, ttcIndex, tags) : 0; |
| 1204 | } |
| 1205 | |
| 1206 | class AutoDWriteTable { |
| 1207 | public: |
| 1208 | AutoDWriteTable(IDWriteFontFace* fontFace, UINT32 beTag) : fFontFace(fontFace), fExists(FALSE) { |
| 1209 | // Any errors are ignored, user must check fExists anyway. |
| 1210 | fontFace->TryGetFontTable(beTag, |
| 1211 | reinterpret_cast<const void **>(&fData), &fSize, &fLock, &fExists); |
| 1212 | } |
| 1213 | ~AutoDWriteTable() { |
| 1214 | if (fExists) { |
| 1215 | fFontFace->ReleaseFontTable(fLock); |
| 1216 | } |
| 1217 | } |
| 1218 | |
| 1219 | const uint8_t* fData; |
| 1220 | UINT32 fSize; |
| 1221 | BOOL fExists; |
| 1222 | private: |
| 1223 | // Borrowed reference, the user must ensure the fontFace stays alive. |
| 1224 | IDWriteFontFace* fFontFace; |
| 1225 | void* fLock; |
| 1226 | }; |
| 1227 | |
| 1228 | size_t DWriteFontTypeface::onGetTableData(SkFontTableTag tag, size_t offset, |
| 1229 | size_t length, void* data) const |
| 1230 | { |
| 1231 | AutoDWriteTable table(fDWriteFontFace.get(), SkEndian_SwapBE32(tag)); |
| 1232 | if (!table.fExists) { |
| 1233 | return 0; |
| 1234 | } |
| 1235 | |
| 1236 | if (offset > table.fSize) { |
| 1237 | return 0; |
| 1238 | } |
| 1239 | size_t size = SkTMin(length, table.fSize - offset); |
| 1240 | if (NULL != data) { |
| 1241 | memcpy(data, table.fData + offset, size); |
| 1242 | } |
| 1243 | |
| 1244 | return size; |
| 1245 | } |
| 1246 | |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 1247 | template <typename T> class SkAutoIDWriteUnregister { |
| 1248 | public: |
| 1249 | SkAutoIDWriteUnregister(IDWriteFactory* factory, T* unregister) |
| 1250 | : fFactory(factory), fUnregister(unregister) |
| 1251 | { } |
| 1252 | |
| 1253 | ~SkAutoIDWriteUnregister() { |
| 1254 | if (fUnregister) { |
| 1255 | unregister(fFactory, fUnregister); |
| 1256 | } |
| 1257 | } |
| 1258 | |
| 1259 | T* detatch() { |
| 1260 | T* old = fUnregister; |
| 1261 | fUnregister = NULL; |
| 1262 | return old; |
| 1263 | } |
| 1264 | |
| 1265 | private: |
| 1266 | HRESULT unregister(IDWriteFactory* factory, IDWriteFontFileLoader* unregister) { |
| 1267 | return factory->UnregisterFontFileLoader(unregister); |
| 1268 | } |
| 1269 | |
| 1270 | HRESULT unregister(IDWriteFactory* factory, IDWriteFontCollectionLoader* unregister) { |
| 1271 | return factory->UnregisterFontCollectionLoader(unregister); |
| 1272 | } |
| 1273 | |
| 1274 | IDWriteFactory* fFactory; |
| 1275 | T* fUnregister; |
| 1276 | }; |
| 1277 | |
| 1278 | static SkTypeface* create_from_stream(SkStream* stream, int ttcIndex) { |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1279 | IDWriteFactory* factory; |
| 1280 | HRN(get_dwrite_factory(&factory)); |
| 1281 | |
| 1282 | SkTScopedComPtr<StreamFontFileLoader> fontFileLoader; |
| 1283 | HRN(StreamFontFileLoader::Create(stream, &fontFileLoader)); |
| 1284 | HRN(factory->RegisterFontFileLoader(fontFileLoader.get())); |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 1285 | SkAutoIDWriteUnregister<StreamFontFileLoader> autoUnregisterFontFileLoader( |
| 1286 | factory, fontFileLoader.get()); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1287 | |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 1288 | SkTScopedComPtr<StreamFontCollectionLoader> fontCollectionLoader; |
| 1289 | HRN(StreamFontCollectionLoader::Create(fontFileLoader.get(), &fontCollectionLoader)); |
| 1290 | HRN(factory->RegisterFontCollectionLoader(fontCollectionLoader.get())); |
| 1291 | SkAutoIDWriteUnregister<StreamFontCollectionLoader> autoUnregisterFontCollectionLoader( |
| 1292 | factory, fontCollectionLoader.get()); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1293 | |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 1294 | SkTScopedComPtr<IDWriteFontCollection> fontCollection; |
| 1295 | HRN(factory->CreateCustomFontCollection(fontCollectionLoader.get(), NULL, 0, &fontCollection)); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1296 | |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 1297 | // Find the first non-simulated font which has the given ttc index. |
| 1298 | UINT32 familyCount = fontCollection->GetFontFamilyCount(); |
| 1299 | for (UINT32 familyIndex = 0; familyIndex < familyCount; ++familyIndex) { |
| 1300 | SkTScopedComPtr<IDWriteFontFamily> fontFamily; |
| 1301 | HRN(fontCollection->GetFontFamily(familyIndex, &fontFamily)); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1302 | |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 1303 | UINT32 fontCount = fontFamily->GetFontCount(); |
| 1304 | for (UINT32 fontIndex = 0; fontIndex < fontCount; ++fontIndex) { |
| 1305 | SkTScopedComPtr<IDWriteFont> font; |
| 1306 | HRN(fontFamily->GetFont(fontIndex, &font)); |
| 1307 | if (font->GetSimulations() != DWRITE_FONT_SIMULATIONS_NONE) { |
| 1308 | continue; |
| 1309 | } |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1310 | |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 1311 | SkTScopedComPtr<IDWriteFontFace> fontFace; |
| 1312 | HRN(font->CreateFontFace(&fontFace)); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1313 | |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 1314 | UINT32 faceIndex = fontFace->GetIndex(); |
| 1315 | if (faceIndex == ttcIndex) { |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1316 | return DWriteFontTypeface::Create(fontFace.get(), font.get(), fontFamily.get(), |
| 1317 | autoUnregisterFontFileLoader.detatch(), |
| 1318 | autoUnregisterFontCollectionLoader.detatch()); |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 1319 | } |
| 1320 | } |
| 1321 | } |
| 1322 | |
| 1323 | return NULL; |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1324 | } |
| 1325 | |
reed@google.com | 177dc6e | 2013-03-21 20:55:10 +0000 | [diff] [blame] | 1326 | SkStream* DWriteFontTypeface::onOpenStream(int* ttcIndex) const { |
bungeman@google.com | 4bbc524 | 2013-05-02 14:01:36 +0000 | [diff] [blame] | 1327 | *ttcIndex = fDWriteFontFace->GetIndex(); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1328 | |
| 1329 | UINT32 numFiles; |
reed@google.com | 177dc6e | 2013-03-21 20:55:10 +0000 | [diff] [blame] | 1330 | HRNM(fDWriteFontFace->GetFiles(&numFiles, NULL), |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1331 | "Could not get number of font files."); |
| 1332 | if (numFiles != 1) { |
| 1333 | return NULL; |
| 1334 | } |
| 1335 | |
| 1336 | SkTScopedComPtr<IDWriteFontFile> fontFile; |
reed@google.com | 177dc6e | 2013-03-21 20:55:10 +0000 | [diff] [blame] | 1337 | HRNM(fDWriteFontFace->GetFiles(&numFiles, &fontFile), "Could not get font files."); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1338 | |
| 1339 | const void* fontFileKey; |
| 1340 | UINT32 fontFileKeySize; |
| 1341 | HRNM(fontFile->GetReferenceKey(&fontFileKey, &fontFileKeySize), |
| 1342 | "Could not get font file reference key."); |
| 1343 | |
| 1344 | SkTScopedComPtr<IDWriteFontFileLoader> fontFileLoader; |
| 1345 | HRNM(fontFile->GetLoader(&fontFileLoader), "Could not get font file loader."); |
| 1346 | |
| 1347 | SkTScopedComPtr<IDWriteFontFileStream> fontFileStream; |
| 1348 | HRNM(fontFileLoader->CreateStreamFromKey(fontFileKey, fontFileKeySize, |
| 1349 | &fontFileStream), |
| 1350 | "Could not create font file stream."); |
| 1351 | |
| 1352 | return SkNEW_ARGS(SkDWriteFontFileStream, (fontFileStream.get())); |
| 1353 | } |
| 1354 | |
reed@google.com | 0da4861 | 2013-03-19 16:06:52 +0000 | [diff] [blame] | 1355 | SkScalerContext* DWriteFontTypeface::onCreateScalerContext(const SkDescriptor* desc) const { |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 1356 | return SkNEW_ARGS(SkScalerContext_DW, (const_cast<DWriteFontTypeface*>(this), desc)); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1357 | } |
| 1358 | |
| 1359 | static HRESULT get_by_family_name(const char familyName[], IDWriteFontFamily** fontFamily) { |
| 1360 | IDWriteFactory* factory; |
| 1361 | HR(get_dwrite_factory(&factory)); |
| 1362 | |
| 1363 | SkTScopedComPtr<IDWriteFontCollection> sysFontCollection; |
| 1364 | HR(factory->GetSystemFontCollection(&sysFontCollection, FALSE)); |
| 1365 | |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1366 | SkSMallocWCHAR wideFamilyName; |
| 1367 | HR(cstring_to_wchar(familyName, &wideFamilyName)); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1368 | |
| 1369 | UINT32 index; |
| 1370 | BOOL exists; |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1371 | HR(sysFontCollection->FindFamilyName(wideFamilyName.get(), &index, &exists)); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1372 | |
| 1373 | if (exists) { |
| 1374 | HR(sysFontCollection->GetFontFamily(index, fontFamily)); |
| 1375 | return S_OK; |
| 1376 | } |
| 1377 | return S_FALSE; |
| 1378 | } |
| 1379 | |
reed@google.com | 0da4861 | 2013-03-19 16:06:52 +0000 | [diff] [blame] | 1380 | void DWriteFontTypeface::onFilterRec(SkScalerContext::Rec* rec) const { |
commit-bot@chromium.org | c5fd461 | 2013-05-06 22:23:08 +0000 | [diff] [blame] | 1381 | if (rec->fFlags & SkScalerContext::kLCD_BGROrder_Flag || |
| 1382 | rec->fFlags & SkScalerContext::kLCD_Vertical_Flag) |
| 1383 | { |
| 1384 | rec->fMaskFormat = SkMask::kA8_Format; |
| 1385 | } |
| 1386 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1387 | unsigned flagsWeDontSupport = SkScalerContext::kDevKernText_Flag | |
| 1388 | SkScalerContext::kAutohinting_Flag | |
| 1389 | SkScalerContext::kEmbeddedBitmapText_Flag | |
| 1390 | SkScalerContext::kEmbolden_Flag | |
| 1391 | SkScalerContext::kLCD_BGROrder_Flag | |
| 1392 | SkScalerContext::kLCD_Vertical_Flag; |
| 1393 | rec->fFlags &= ~flagsWeDontSupport; |
| 1394 | |
| 1395 | SkPaint::Hinting h = rec->getHinting(); |
| 1396 | // DirectWrite does not provide for hinting hints. |
| 1397 | h = SkPaint::kSlight_Hinting; |
| 1398 | rec->setHinting(h); |
| 1399 | |
| 1400 | #if SK_FONT_HOST_USE_SYSTEM_SETTINGS |
| 1401 | IDWriteFactory* factory; |
| 1402 | if (SUCCEEDED(get_dwrite_factory(&factory))) { |
| 1403 | SkTScopedComPtr<IDWriteRenderingParams> defaultRenderingParams; |
| 1404 | if (SUCCEEDED(factory->CreateRenderingParams(&defaultRenderingParams))) { |
| 1405 | float gamma = defaultRenderingParams->GetGamma(); |
| 1406 | rec->setDeviceGamma(SkFloatToScalar(gamma)); |
| 1407 | rec->setPaintGamma(SkFloatToScalar(gamma)); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 1408 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1409 | rec->setContrast(SkFloatToScalar(defaultRenderingParams->GetEnhancedContrast())); |
| 1410 | } |
| 1411 | } |
| 1412 | #endif |
| 1413 | } |
| 1414 | |
| 1415 | /////////////////////////////////////////////////////////////////////////////// |
| 1416 | //PDF Support |
| 1417 | |
| 1418 | using namespace skia_advanced_typeface_metrics_utils; |
| 1419 | |
| 1420 | // Construct Glyph to Unicode table. |
| 1421 | // Unicode code points that require conjugate pairs in utf16 are not |
| 1422 | // supported. |
| 1423 | // TODO(arthurhsu): Add support for conjugate pairs. It looks like that may |
| 1424 | // require parsing the TTF cmap table (platform 4, encoding 12) directly instead |
| 1425 | // of calling GetFontUnicodeRange(). |
| 1426 | // TODO(bungeman): This never does what anyone wants. |
| 1427 | // What is really wanted is the text to glyphs mapping |
| 1428 | static void populate_glyph_to_unicode(IDWriteFontFace* fontFace, |
| 1429 | const unsigned glyphCount, |
| 1430 | SkTDArray<SkUnichar>* glyphToUnicode) { |
| 1431 | HRESULT hr = S_OK; |
| 1432 | |
| 1433 | //Do this like free type instead |
| 1434 | UINT32 count = 0; |
| 1435 | for (UINT32 c = 0; c < 0x10FFFF; ++c) { |
| 1436 | UINT16 glyph; |
| 1437 | hr = fontFace->GetGlyphIndices(&c, 1, &glyph); |
| 1438 | if (glyph > 0) { |
| 1439 | ++count; |
| 1440 | } |
| 1441 | } |
| 1442 | |
| 1443 | SkAutoTArray<UINT32> chars(count); |
| 1444 | count = 0; |
| 1445 | for (UINT32 c = 0; c < 0x10FFFF; ++c) { |
| 1446 | UINT16 glyph; |
| 1447 | hr = fontFace->GetGlyphIndices(&c, 1, &glyph); |
| 1448 | if (glyph > 0) { |
| 1449 | chars[count] = c; |
| 1450 | ++count; |
| 1451 | } |
| 1452 | } |
| 1453 | |
| 1454 | SkAutoTArray<UINT16> glyph(count); |
| 1455 | fontFace->GetGlyphIndices(chars.get(), count, glyph.get()); |
| 1456 | |
| 1457 | USHORT maxGlyph = 0; |
| 1458 | for (USHORT j = 0; j < count; ++j) { |
| 1459 | if (glyph[j] > maxGlyph) maxGlyph = glyph[j]; |
| 1460 | } |
| 1461 | |
| 1462 | glyphToUnicode->setCount(maxGlyph+1); |
| 1463 | for (size_t j = 0; j < maxGlyph+1u; ++j) { |
| 1464 | (*glyphToUnicode)[j] = 0; |
| 1465 | } |
| 1466 | |
| 1467 | //'invert' |
| 1468 | for (USHORT j = 0; j < count; ++j) { |
| 1469 | if (glyph[j] < glyphCount && (*glyphToUnicode)[glyph[j]] == 0) { |
| 1470 | (*glyphToUnicode)[glyph[j]] = chars[j]; |
| 1471 | } |
| 1472 | } |
| 1473 | } |
| 1474 | |
| 1475 | static bool getWidthAdvance(IDWriteFontFace* fontFace, int gId, int16_t* advance) { |
| 1476 | SkASSERT(advance); |
| 1477 | |
| 1478 | UINT16 glyphId = gId; |
| 1479 | DWRITE_GLYPH_METRICS gm; |
| 1480 | HRESULT hr = fontFace->GetDesignGlyphMetrics(&glyphId, 1, &gm); |
| 1481 | |
| 1482 | if (FAILED(hr)) { |
| 1483 | *advance = 0; |
| 1484 | return false; |
| 1485 | } |
| 1486 | |
| 1487 | *advance = gm.advanceWidth; |
| 1488 | return true; |
| 1489 | } |
| 1490 | |
bungeman@google.com | b10b51f | 2013-08-01 20:18:41 +0000 | [diff] [blame] | 1491 | template<typename T> class AutoTDWriteTable : public AutoDWriteTable { |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1492 | public: |
bungeman@google.com | b10b51f | 2013-08-01 20:18:41 +0000 | [diff] [blame] | 1493 | static const UINT32 tag = DWRITE_MAKE_OPENTYPE_TAG(T::TAG0, T::TAG1, T::TAG2, T::TAG3); |
| 1494 | AutoTDWriteTable(IDWriteFontFace* fontFace) : AutoDWriteTable(fontFace, tag) { } |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1495 | |
bungeman@google.com | b10b51f | 2013-08-01 20:18:41 +0000 | [diff] [blame] | 1496 | const T* operator->() const { return reinterpret_cast<const T*>(fData); } |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1497 | }; |
| 1498 | |
reed@google.com | 2689f61 | 2013-03-20 20:01:47 +0000 | [diff] [blame] | 1499 | SkAdvancedTypefaceMetrics* DWriteFontTypeface::onGetAdvancedTypefaceMetrics( |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1500 | SkAdvancedTypefaceMetrics::PerGlyphInfo perGlyphInfo, |
| 1501 | const uint32_t* glyphIDs, |
reed@google.com | 2689f61 | 2013-03-20 20:01:47 +0000 | [diff] [blame] | 1502 | uint32_t glyphIDsCount) const { |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1503 | |
| 1504 | SkAdvancedTypefaceMetrics* info = NULL; |
| 1505 | |
| 1506 | HRESULT hr = S_OK; |
| 1507 | |
reed@google.com | 2689f61 | 2013-03-20 20:01:47 +0000 | [diff] [blame] | 1508 | const unsigned glyphCount = fDWriteFontFace->GetGlyphCount(); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1509 | |
| 1510 | DWRITE_FONT_METRICS dwfm; |
reed@google.com | 2689f61 | 2013-03-20 20:01:47 +0000 | [diff] [blame] | 1511 | fDWriteFontFace->GetMetrics(&dwfm); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1512 | |
| 1513 | info = new SkAdvancedTypefaceMetrics; |
| 1514 | info->fEmSize = dwfm.designUnitsPerEm; |
| 1515 | info->fMultiMaster = false; |
| 1516 | info->fLastGlyphID = SkToU16(glyphCount - 1); |
| 1517 | info->fStyle = 0; |
| 1518 | |
| 1519 | |
| 1520 | SkTScopedComPtr<IDWriteLocalizedStrings> familyNames; |
| 1521 | SkTScopedComPtr<IDWriteLocalizedStrings> faceNames; |
reed@google.com | 2689f61 | 2013-03-20 20:01:47 +0000 | [diff] [blame] | 1522 | hr = fDWriteFontFamily->GetFamilyNames(&familyNames); |
| 1523 | hr = fDWriteFont->GetFaceNames(&faceNames); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1524 | |
| 1525 | UINT32 familyNameLength; |
| 1526 | hr = familyNames->GetStringLength(0, &familyNameLength); |
| 1527 | |
| 1528 | UINT32 faceNameLength; |
| 1529 | hr = faceNames->GetStringLength(0, &faceNameLength); |
| 1530 | |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1531 | UINT32 size = familyNameLength+1+faceNameLength+1; |
| 1532 | SkSMallocWCHAR wFamilyName(size); |
| 1533 | hr = familyNames->GetString(0, wFamilyName.get(), size); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1534 | wFamilyName[familyNameLength] = L' '; |
| 1535 | hr = faceNames->GetString(0, &wFamilyName[familyNameLength+1], size - faceNameLength + 1); |
| 1536 | |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1537 | hr = wchar_to_skstring(wFamilyName.get(), &info->fFontName); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1538 | |
| 1539 | if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) { |
reed@google.com | 2689f61 | 2013-03-20 20:01:47 +0000 | [diff] [blame] | 1540 | populate_glyph_to_unicode(fDWriteFontFace.get(), glyphCount, &(info->fGlyphToUnicode)); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1541 | } |
| 1542 | |
reed@google.com | 2689f61 | 2013-03-20 20:01:47 +0000 | [diff] [blame] | 1543 | DWRITE_FONT_FACE_TYPE fontType = fDWriteFontFace->GetType(); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1544 | if (fontType == DWRITE_FONT_FACE_TYPE_TRUETYPE || |
| 1545 | fontType == DWRITE_FONT_FACE_TYPE_TRUETYPE_COLLECTION) { |
| 1546 | info->fType = SkAdvancedTypefaceMetrics::kTrueType_Font; |
| 1547 | } else { |
| 1548 | info->fType = SkAdvancedTypefaceMetrics::kOther_Font; |
| 1549 | info->fItalicAngle = 0; |
| 1550 | info->fAscent = dwfm.ascent;; |
| 1551 | info->fDescent = dwfm.descent; |
| 1552 | info->fStemV = 0; |
| 1553 | info->fCapHeight = dwfm.capHeight; |
| 1554 | info->fBBox = SkIRect::MakeEmpty(); |
| 1555 | return info; |
| 1556 | } |
| 1557 | |
bungeman@google.com | b10b51f | 2013-08-01 20:18:41 +0000 | [diff] [blame] | 1558 | AutoTDWriteTable<SkOTTableHead> headTable(fDWriteFontFace.get()); |
| 1559 | AutoTDWriteTable<SkOTTablePostScript> postTable(fDWriteFontFace.get()); |
| 1560 | AutoTDWriteTable<SkOTTableHorizontalHeader> hheaTable(fDWriteFontFace.get()); |
| 1561 | AutoTDWriteTable<SkOTTableOS2> os2Table(fDWriteFontFace.get()); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1562 | if (!headTable.fExists || !postTable.fExists || !hheaTable.fExists || !os2Table.fExists) { |
| 1563 | info->fItalicAngle = 0; |
| 1564 | info->fAscent = dwfm.ascent;; |
| 1565 | info->fDescent = dwfm.descent; |
| 1566 | info->fStemV = 0; |
| 1567 | info->fCapHeight = dwfm.capHeight; |
| 1568 | info->fBBox = SkIRect::MakeEmpty(); |
| 1569 | return info; |
| 1570 | } |
| 1571 | |
| 1572 | //There exist CJK fonts which set the IsFixedPitch and Monospace bits, |
| 1573 | //but have full width, latin half-width, and half-width kana. |
| 1574 | bool fixedWidth = (postTable->isFixedPitch && |
| 1575 | (1 == SkEndian_SwapBE16(hheaTable->numberOfHMetrics))); |
| 1576 | //Monospace |
| 1577 | if (fixedWidth) { |
| 1578 | info->fStyle |= SkAdvancedTypefaceMetrics::kFixedPitch_Style; |
| 1579 | } |
| 1580 | //Italic |
| 1581 | if (os2Table->version.v0.fsSelection.field.Italic) { |
| 1582 | info->fStyle |= SkAdvancedTypefaceMetrics::kItalic_Style; |
| 1583 | } |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1584 | //Script |
| 1585 | if (SkPanose::FamilyType::Script == os2Table->version.v0.panose.bFamilyType.value) { |
| 1586 | info->fStyle |= SkAdvancedTypefaceMetrics::kScript_Style; |
| 1587 | //Serif |
| 1588 | } else if (SkPanose::FamilyType::TextAndDisplay == os2Table->version.v0.panose.bFamilyType.value && |
| 1589 | SkPanose::Data::TextAndDisplay::SerifStyle::Triangle <= os2Table->version.v0.panose.data.textAndDisplay.bSerifStyle.value && |
| 1590 | SkPanose::Data::TextAndDisplay::SerifStyle::NoFit != os2Table->version.v0.panose.data.textAndDisplay.bSerifStyle.value) { |
| 1591 | info->fStyle |= SkAdvancedTypefaceMetrics::kSerif_Style; |
| 1592 | } |
| 1593 | |
| 1594 | info->fItalicAngle = SkEndian_SwapBE32(postTable->italicAngle) >> 16; |
| 1595 | |
| 1596 | info->fAscent = SkToS16(dwfm.ascent); |
| 1597 | info->fDescent = SkToS16(dwfm.descent); |
| 1598 | info->fCapHeight = SkToS16(dwfm.capHeight); |
| 1599 | |
| 1600 | info->fBBox = SkIRect::MakeLTRB((int32_t)SkEndian_SwapBE16((uint16_t)headTable->xMin), |
| 1601 | (int32_t)SkEndian_SwapBE16((uint16_t)headTable->yMax), |
| 1602 | (int32_t)SkEndian_SwapBE16((uint16_t)headTable->xMax), |
| 1603 | (int32_t)SkEndian_SwapBE16((uint16_t)headTable->yMin)); |
| 1604 | |
| 1605 | //TODO: is this even desired? It seems PDF only wants this value for Type1 |
| 1606 | //fonts, and we only get here for TrueType fonts. |
| 1607 | info->fStemV = 0; |
| 1608 | /* |
| 1609 | // Figure out a good guess for StemV - Min width of i, I, !, 1. |
| 1610 | // This probably isn't very good with an italic font. |
| 1611 | int16_t min_width = SHRT_MAX; |
| 1612 | info->fStemV = 0; |
| 1613 | char stem_chars[] = {'i', 'I', '!', '1'}; |
| 1614 | for (size_t i = 0; i < SK_ARRAY_COUNT(stem_chars); i++) { |
| 1615 | ABC abcWidths; |
| 1616 | if (GetCharABCWidths(hdc, stem_chars[i], stem_chars[i], &abcWidths)) { |
| 1617 | int16_t width = abcWidths.abcB; |
| 1618 | if (width > 0 && width < min_width) { |
| 1619 | min_width = width; |
| 1620 | info->fStemV = min_width; |
| 1621 | } |
| 1622 | } |
| 1623 | } |
| 1624 | */ |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 1625 | |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1626 | // If Restricted, the font may not be embedded in a document. |
| 1627 | // If not Restricted, the font can be embedded. |
| 1628 | // If PreviewPrint, the embedding is read-only. |
| 1629 | if (os2Table->version.v0.fsType.field.Restricted) { |
| 1630 | info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font; |
| 1631 | } else if (perGlyphInfo & SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) { |
| 1632 | if (fixedWidth) { |
| 1633 | appendRange(&info->fGlyphWidths, 0); |
| 1634 | int16_t advance; |
reed@google.com | 2689f61 | 2013-03-20 20:01:47 +0000 | [diff] [blame] | 1635 | getWidthAdvance(fDWriteFontFace.get(), 1, &advance); |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1636 | info->fGlyphWidths->fAdvance.append(1, &advance); |
| 1637 | finishRange(info->fGlyphWidths.get(), 0, |
| 1638 | SkAdvancedTypefaceMetrics::WidthRange::kDefault); |
| 1639 | } else { |
| 1640 | info->fGlyphWidths.reset( |
reed@google.com | 2689f61 | 2013-03-20 20:01:47 +0000 | [diff] [blame] | 1641 | getAdvanceData(fDWriteFontFace.get(), |
bungeman@google.com | e8f0592 | 2012-08-16 16:13:40 +0000 | [diff] [blame] | 1642 | glyphCount, |
| 1643 | glyphIDs, |
| 1644 | glyphIDsCount, |
| 1645 | getWidthAdvance)); |
| 1646 | } |
| 1647 | } |
| 1648 | |
| 1649 | return info; |
| 1650 | } |
reed@google.com | 070da5e | 2013-03-27 20:01:49 +0000 | [diff] [blame] | 1651 | |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 1652 | static SkTypeface* create_typeface(const SkTypeface* familyFace, |
| 1653 | const char familyName[], |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1654 | unsigned style, |
| 1655 | SkFontMgr_DirectWrite* fontMgr) { |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 1656 | HRESULT hr; |
| 1657 | SkTScopedComPtr<IDWriteFontFamily> fontFamily; |
| 1658 | if (familyFace) { |
| 1659 | const DWriteFontTypeface* face = static_cast<const DWriteFontTypeface*>(familyFace); |
| 1660 | *(&fontFamily) = SkRefComPtr(face->fDWriteFontFamily.get()); |
| 1661 | |
| 1662 | } else if (familyName) { |
| 1663 | hr = get_by_family_name(familyName, &fontFamily); |
| 1664 | } |
| 1665 | |
| 1666 | if (NULL == fontFamily.get()) { |
| 1667 | //No good family found, go with default. |
| 1668 | SkTScopedComPtr<IDWriteFont> font; |
| 1669 | hr = get_default_font(&font); |
| 1670 | hr = font->GetFontFamily(&fontFamily); |
| 1671 | } |
| 1672 | |
| 1673 | SkTScopedComPtr<IDWriteFont> font; |
| 1674 | DWRITE_FONT_WEIGHT weight = (style & SkTypeface::kBold) |
| 1675 | ? DWRITE_FONT_WEIGHT_BOLD |
| 1676 | : DWRITE_FONT_WEIGHT_NORMAL; |
| 1677 | DWRITE_FONT_STRETCH stretch = DWRITE_FONT_STRETCH_UNDEFINED; |
| 1678 | DWRITE_FONT_STYLE italic = (style & SkTypeface::kItalic) |
| 1679 | ? DWRITE_FONT_STYLE_ITALIC |
| 1680 | : DWRITE_FONT_STYLE_NORMAL; |
| 1681 | hr = fontFamily->GetFirstMatchingFont(weight, stretch, italic, &font); |
| 1682 | |
| 1683 | SkTScopedComPtr<IDWriteFontFace> fontFace; |
| 1684 | hr = font->CreateFontFace(&fontFace); |
| 1685 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1686 | return fontMgr->createTypefaceFromDWriteFont(fontFace.get(), font.get(), fontFamily.get()); |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 1687 | } |
| 1688 | |
| 1689 | SkTypeface* DWriteFontTypeface::onRefMatchingStyle(Style style) const { |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1690 | SkFontMgr_DirectWrite* fontMgr = NULL; |
| 1691 | // todo: should each typeface have a ref to its fontmgr/cache? |
| 1692 | return create_typeface(this, NULL, style, fontMgr); |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 1693 | } |
| 1694 | |
reed@google.com | 070da5e | 2013-03-27 20:01:49 +0000 | [diff] [blame] | 1695 | /////////////////////////////////////////////////////////////////////////////// |
| 1696 | |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1697 | static void get_locale_string(IDWriteLocalizedStrings* names, const WCHAR* preferedLocale, |
| 1698 | SkString* skname) { |
| 1699 | UINT32 nameIndex = 0; |
| 1700 | if (preferedLocale) { |
| 1701 | // Ignore any errors and continue with index 0 if there is a problem. |
| 1702 | BOOL nameExists; |
| 1703 | names->FindLocaleName(preferedLocale, &nameIndex, &nameExists); |
| 1704 | if (!nameExists) { |
| 1705 | nameIndex = 0; |
| 1706 | } |
| 1707 | } |
| 1708 | |
| 1709 | UINT32 nameLength; |
| 1710 | HRVM(names->GetStringLength(nameIndex, &nameLength), "Could not get name length."); |
| 1711 | nameLength += 1; |
| 1712 | |
| 1713 | SkSMallocWCHAR name(nameLength); |
| 1714 | HRVM(names->GetString(nameIndex, name.get(), nameLength), "Could not get string."); |
| 1715 | |
| 1716 | HRV(wchar_to_skstring(name.get(), skname)); |
| 1717 | } |
| 1718 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1719 | SkTypeface* SkFontMgr_DirectWrite::createTypefaceFromDWriteFont( |
| 1720 | IDWriteFontFace* fontFace, |
| 1721 | IDWriteFont* font, |
| 1722 | IDWriteFontFamily* fontFamily, |
| 1723 | StreamFontFileLoader* fontFileLoader, |
| 1724 | IDWriteFontCollectionLoader* fontCollectionLoader) { |
bungeman@google.com | 86dd752 | 2013-10-04 17:00:35 +0000 | [diff] [blame^] | 1725 | SkTypeface* face = FindByProcAndRef(FindByDWriteFont, font); |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1726 | if (NULL == face) { |
| 1727 | face = DWriteFontTypeface::Create(fontFace, font, fontFamily, |
| 1728 | fontFileLoader, fontCollectionLoader); |
| 1729 | if (face) { |
bungeman@google.com | 86dd752 | 2013-10-04 17:00:35 +0000 | [diff] [blame^] | 1730 | Add(face, get_style(font), fontCollectionLoader != NULL); |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1731 | } |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1732 | } |
| 1733 | return face; |
| 1734 | } |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1735 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1736 | int SkFontMgr_DirectWrite::onCountFamilies() { |
| 1737 | return fFontCollection->GetFontFamilyCount(); |
| 1738 | } |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1739 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1740 | void SkFontMgr_DirectWrite::onGetFamilyName(int index, SkString* familyName) { |
| 1741 | SkTScopedComPtr<IDWriteFontFamily> fontFamily; |
| 1742 | HRVM(fFontCollection->GetFontFamily(index, &fontFamily), "Could not get requested family."); |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1743 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1744 | SkTScopedComPtr<IDWriteLocalizedStrings> familyNames; |
| 1745 | HRVM(fontFamily->GetFamilyNames(&familyNames), "Could not get family names."); |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1746 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1747 | get_locale_string(familyNames.get(), fLocaleName.get(), familyName); |
| 1748 | } |
| 1749 | |
| 1750 | SkFontStyleSet* SkFontMgr_DirectWrite::onCreateStyleSet(int index) { |
| 1751 | SkTScopedComPtr<IDWriteFontFamily> fontFamily; |
| 1752 | HRNM(fFontCollection->GetFontFamily(index, &fontFamily), "Could not get requested family."); |
| 1753 | |
| 1754 | return SkNEW_ARGS(SkFontStyleSet_DirectWrite, (this, fontFamily.get())); |
| 1755 | } |
| 1756 | |
| 1757 | SkFontStyleSet* SkFontMgr_DirectWrite::onMatchFamily(const char familyName[]) { |
| 1758 | SkSMallocWCHAR dwFamilyName; |
| 1759 | HRN(cstring_to_wchar(familyName, &dwFamilyName)); |
| 1760 | |
| 1761 | UINT32 index; |
| 1762 | BOOL exists; |
| 1763 | HRNM(fFontCollection->FindFamilyName(dwFamilyName.get(), &index, &exists), |
| 1764 | "Failed while finding family by name."); |
| 1765 | if (!exists) { |
| 1766 | return NULL; |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1767 | } |
| 1768 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1769 | return this->onCreateStyleSet(index); |
| 1770 | } |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1771 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1772 | SkTypeface* SkFontMgr_DirectWrite::onMatchFamilyStyle(const char familyName[], |
| 1773 | const SkFontStyle& fontstyle) { |
| 1774 | SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName)); |
| 1775 | return sset->matchStyle(fontstyle); |
| 1776 | } |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1777 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1778 | SkTypeface* SkFontMgr_DirectWrite::onMatchFaceStyle(const SkTypeface* familyMember, |
| 1779 | const SkFontStyle& fontstyle) { |
| 1780 | SkString familyName; |
| 1781 | SkFontStyleSet_DirectWrite sset( |
| 1782 | this, ((DWriteFontTypeface*)familyMember)->fDWriteFontFamily.get() |
| 1783 | ); |
| 1784 | return sset.matchStyle(fontstyle); |
| 1785 | } |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1786 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1787 | SkTypeface* SkFontMgr_DirectWrite::onCreateFromStream(SkStream* stream, int ttcIndex) { |
| 1788 | return create_from_stream(stream, ttcIndex); |
| 1789 | } |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1790 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1791 | SkTypeface* SkFontMgr_DirectWrite::onCreateFromData(SkData* data, int ttcIndex) { |
| 1792 | SkAutoTUnref<SkStream> stream(SkNEW_ARGS(SkMemoryStream, (data))); |
| 1793 | return this->createFromStream(stream, ttcIndex); |
| 1794 | } |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1795 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1796 | SkTypeface* SkFontMgr_DirectWrite::onCreateFromFile(const char path[], int ttcIndex) { |
| 1797 | SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path)); |
| 1798 | return this->createFromStream(stream, ttcIndex); |
| 1799 | } |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1800 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1801 | SkTypeface* SkFontMgr_DirectWrite::onLegacyCreateTypeface(const char familyName[], |
| 1802 | unsigned styleBits) { |
| 1803 | return create_typeface(NULL, familyName, styleBits, this); |
| 1804 | } |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1805 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1806 | /////////////////////////////////////////////////////////////////////////////// |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1807 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1808 | int SkFontStyleSet_DirectWrite::count() { |
| 1809 | return fFontFamily->GetFontCount(); |
| 1810 | } |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1811 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1812 | SkTypeface* SkFontStyleSet_DirectWrite::createTypeface(int index) { |
| 1813 | SkTScopedComPtr<IDWriteFont> font; |
| 1814 | HRNM(fFontFamily->GetFont(index, &font), "Could not get font."); |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 1815 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1816 | SkTScopedComPtr<IDWriteFontFace> fontFace; |
| 1817 | HRNM(font->CreateFontFace(&fontFace), "Could not create font face."); |
| 1818 | |
| 1819 | return fFontMgr->createTypefaceFromDWriteFont(fontFace.get(), font.get(), fFontFamily.get()); |
| 1820 | } |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1821 | |
| 1822 | void SkFontStyleSet_DirectWrite::getStyle(int index, SkFontStyle* fs, SkString* styleName) { |
| 1823 | SkTScopedComPtr<IDWriteFont> font; |
| 1824 | HRVM(fFontFamily->GetFont(index, &font), "Could not get font."); |
| 1825 | |
| 1826 | SkFontStyle::Slant slant; |
| 1827 | switch (font->GetStyle()) { |
| 1828 | case DWRITE_FONT_STYLE_NORMAL: |
| 1829 | slant = SkFontStyle::kUpright_Slant; |
| 1830 | break; |
| 1831 | case DWRITE_FONT_STYLE_OBLIQUE: |
| 1832 | case DWRITE_FONT_STYLE_ITALIC: |
| 1833 | slant = SkFontStyle::kItalic_Slant; |
| 1834 | break; |
| 1835 | default: |
| 1836 | SkASSERT(false); |
| 1837 | } |
| 1838 | |
| 1839 | int weight = font->GetWeight(); |
| 1840 | int width = font->GetStretch(); |
| 1841 | |
| 1842 | *fs = SkFontStyle(weight, width, slant); |
| 1843 | |
| 1844 | SkTScopedComPtr<IDWriteLocalizedStrings> faceNames; |
| 1845 | if (SUCCEEDED(font->GetFaceNames(&faceNames))) { |
| 1846 | get_locale_string(faceNames.get(), fFontMgr->fLocaleName.get(), styleName); |
| 1847 | } |
| 1848 | } |
| 1849 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1850 | SkTypeface* SkFontStyleSet_DirectWrite::matchStyle(const SkFontStyle& pattern) { |
| 1851 | DWRITE_FONT_STYLE slant; |
| 1852 | switch (pattern.slant()) { |
| 1853 | case SkFontStyle::kUpright_Slant: |
| 1854 | slant = DWRITE_FONT_STYLE_NORMAL; |
| 1855 | break; |
| 1856 | case SkFontStyle::kItalic_Slant: |
| 1857 | slant = DWRITE_FONT_STYLE_ITALIC; |
| 1858 | break; |
| 1859 | default: |
| 1860 | SkASSERT(false); |
| 1861 | } |
| 1862 | |
| 1863 | DWRITE_FONT_WEIGHT weight = (DWRITE_FONT_WEIGHT)pattern.weight(); |
| 1864 | DWRITE_FONT_STRETCH width = (DWRITE_FONT_STRETCH)pattern.width(); |
| 1865 | |
| 1866 | SkTScopedComPtr<IDWriteFont> font; |
| 1867 | // TODO: perhaps use GetMatchingFonts and get the least simulated? |
| 1868 | HRNM(fFontFamily->GetFirstMatchingFont(weight, width, slant, &font), |
| 1869 | "Could not match font in family."); |
| 1870 | |
| 1871 | SkTScopedComPtr<IDWriteFontFace> fontFace; |
| 1872 | HRNM(font->CreateFontFace(&fontFace), "Could not create font face."); |
| 1873 | |
| 1874 | return fFontMgr->createTypefaceFromDWriteFont(fontFace.get(), font.get(), |
| 1875 | fFontFamily.get()); |
| 1876 | } |
| 1877 | |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 1878 | /////////////////////////////////////////////////////////////////////////////// |
| 1879 | |
| 1880 | #ifndef SK_FONTHOST_USES_FONTMGR |
| 1881 | |
| 1882 | SkTypeface* SkFontHost::CreateTypeface(const SkTypeface* familyFace, |
| 1883 | const char familyName[], |
| 1884 | SkTypeface::Style style) { |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1885 | return create_typeface(familyFace, familyName, style, NULL); |
reed@google.com | 30ddd61 | 2013-07-30 17:47:39 +0000 | [diff] [blame] | 1886 | } |
| 1887 | |
| 1888 | SkTypeface* SkFontHost::CreateTypefaceFromFile(const char path[]) { |
| 1889 | printf("SkFontHost::CreateTypefaceFromFile unimplemented"); |
| 1890 | return NULL; |
| 1891 | } |
| 1892 | |
| 1893 | SkTypeface* SkFontHost::CreateTypefaceFromStream(SkStream* stream) { |
| 1894 | return create_from_stream(stream, 0); |
| 1895 | } |
| 1896 | |
| 1897 | #endif |
| 1898 | |
bungeman@google.com | af9296e | 2013-08-21 14:53:59 +0000 | [diff] [blame] | 1899 | typedef decltype(GetUserDefaultLocaleName)* GetUserDefaultLocaleNameProc; |
bungeman@google.com | 42a7829 | 2013-08-21 22:41:05 +0000 | [diff] [blame] | 1900 | static HRESULT GetGetUserDefaultLocaleNameProc(GetUserDefaultLocaleNameProc* proc) { |
| 1901 | *proc = reinterpret_cast<GetUserDefaultLocaleNameProc>( |
bungeman@google.com | af9296e | 2013-08-21 14:53:59 +0000 | [diff] [blame] | 1902 | GetProcAddress(LoadLibraryW(L"Kernel32.dll"), "GetUserDefaultLocaleName") |
| 1903 | ); |
bungeman@google.com | 42a7829 | 2013-08-21 22:41:05 +0000 | [diff] [blame] | 1904 | if (!*proc) { |
| 1905 | HRESULT hr = HRESULT_FROM_WIN32(GetLastError()); |
| 1906 | if (!IS_ERROR(hr)) { |
| 1907 | hr = ERROR_PROC_NOT_FOUND; |
| 1908 | } |
| 1909 | return hr; |
| 1910 | } |
| 1911 | return S_OK; |
bungeman@google.com | af9296e | 2013-08-21 14:53:59 +0000 | [diff] [blame] | 1912 | } |
| 1913 | |
bungeman@google.com | bfc6cc4 | 2013-08-21 15:20:43 +0000 | [diff] [blame] | 1914 | SkFontMgr* SkFontMgr_New_DirectWrite() { |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1915 | IDWriteFactory* factory; |
| 1916 | HRNM(get_dwrite_factory(&factory), "Could not get factory."); |
| 1917 | |
| 1918 | SkTScopedComPtr<IDWriteFontCollection> sysFontCollection; |
| 1919 | HRNM(factory->GetSystemFontCollection(&sysFontCollection, FALSE), |
| 1920 | "Could not get system font collection."); |
| 1921 | |
| 1922 | WCHAR localeNameStorage[LOCALE_NAME_MAX_LENGTH]; |
| 1923 | WCHAR* localeName = NULL; |
bungeman@google.com | af9296e | 2013-08-21 14:53:59 +0000 | [diff] [blame] | 1924 | int localeNameLen = 0; |
| 1925 | |
| 1926 | // Dynamically load GetUserDefaultLocaleName function, as it is not available on XP. |
bungeman@google.com | 42a7829 | 2013-08-21 22:41:05 +0000 | [diff] [blame] | 1927 | GetUserDefaultLocaleNameProc getUserDefaultLocaleNameProc = NULL; |
| 1928 | HRESULT hr = GetGetUserDefaultLocaleNameProc(&getUserDefaultLocaleNameProc); |
bungeman@google.com | af9296e | 2013-08-21 14:53:59 +0000 | [diff] [blame] | 1929 | if (NULL == getUserDefaultLocaleNameProc) { |
bungeman@google.com | 42a7829 | 2013-08-21 22:41:05 +0000 | [diff] [blame] | 1930 | SK_TRACEHR(hr, "Could not get GetUserDefaultLocaleName."); |
bungeman@google.com | af9296e | 2013-08-21 14:53:59 +0000 | [diff] [blame] | 1931 | } else { |
| 1932 | localeNameLen = getUserDefaultLocaleNameProc(localeNameStorage, LOCALE_NAME_MAX_LENGTH); |
| 1933 | if (localeNameLen) { |
| 1934 | localeName = localeNameStorage; |
| 1935 | }; |
| 1936 | } |
bungeman@google.com | 7103344 | 2013-05-01 14:21:20 +0000 | [diff] [blame] | 1937 | |
| 1938 | return SkNEW_ARGS(SkFontMgr_DirectWrite, (sysFontCollection.get(), localeName, localeNameLen)); |
reed@google.com | 070da5e | 2013-03-27 20:01:49 +0000 | [diff] [blame] | 1939 | } |