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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * (C) 2000 Dirk Mueller (mueller@kde.org) | 4 * (C) 2000 Dirk Mueller (mueller@kde.org) |
5 * Copyright (C) 2003, 2006, 2010, 2011 Apple Inc. All rights reserved. | 5 * Copyright (C) 2003, 2006, 2010, 2011 Apple Inc. All rights reserved. |
6 * Copyright (c) 2007, 2008, 2010 Google Inc. All rights reserved. | 6 * Copyright (c) 2007, 2008, 2010 Google Inc. All rights reserved. |
7 * | 7 * |
8 * This library is free software; you can redistribute it and/or | 8 * This library is free software; you can redistribute it and/or |
9 * modify it under the terms of the GNU Library General Public | 9 * modify it under the terms of the GNU Library General Public |
10 * License as published by the Free Software Foundation; either | 10 * License as published by the Free Software Foundation; either |
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28 #include "platform/LayoutUnit.h" | 28 #include "platform/LayoutUnit.h" |
29 #include "platform/RuntimeEnabledFeatures.h" | 29 #include "platform/RuntimeEnabledFeatures.h" |
30 #include "platform/fonts/CharacterRange.h" | 30 #include "platform/fonts/CharacterRange.h" |
31 #include "platform/fonts/FontCache.h" | 31 #include "platform/fonts/FontCache.h" |
32 #include "platform/fonts/FontFallbackIterator.h" | 32 #include "platform/fonts/FontFallbackIterator.h" |
33 #include "platform/fonts/FontFallbackList.h" | 33 #include "platform/fonts/FontFallbackList.h" |
34 #include "platform/fonts/GlyphBuffer.h" | 34 #include "platform/fonts/GlyphBuffer.h" |
35 #include "platform/fonts/SimpleFontData.h" | 35 #include "platform/fonts/SimpleFontData.h" |
36 #include "platform/fonts/shaping/CachingWordShaper.h" | 36 #include "platform/fonts/shaping/CachingWordShaper.h" |
37 #include "platform/geometry/FloatRect.h" | 37 #include "platform/geometry/FloatRect.h" |
| 38 #include "platform/graphics/paint/PaintCanvas.h" |
| 39 #include "platform/graphics/paint/PaintFlags.h" |
38 #include "platform/text/BidiResolver.h" | 40 #include "platform/text/BidiResolver.h" |
39 #include "platform/text/Character.h" | 41 #include "platform/text/Character.h" |
40 #include "platform/text/TextRun.h" | 42 #include "platform/text/TextRun.h" |
41 #include "platform/text/TextRunIterator.h" | 43 #include "platform/text/TextRunIterator.h" |
42 #include "platform/transforms/AffineTransform.h" | 44 #include "platform/transforms/AffineTransform.h" |
43 #include "third_party/skia/include/core/SkCanvas.h" | |
44 #include "third_party/skia/include/core/SkPaint.h" | |
45 #include "third_party/skia/include/core/SkTextBlob.h" | 45 #include "third_party/skia/include/core/SkTextBlob.h" |
46 #include "wtf/StdLibExtras.h" | 46 #include "wtf/StdLibExtras.h" |
47 #include "wtf/text/CharacterNames.h" | 47 #include "wtf/text/CharacterNames.h" |
48 #include "wtf/text/Unicode.h" | 48 #include "wtf/text/Unicode.h" |
49 | 49 |
50 using namespace WTF; | 50 using namespace WTF; |
51 using namespace Unicode; | 51 using namespace Unicode; |
52 | 52 |
53 namespace blink { | 53 namespace blink { |
54 | 54 |
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114 width = shaper.fillGlyphBufferForTextEmphasis(this, runInfo.run, | 114 width = shaper.fillGlyphBufferForTextEmphasis(this, runInfo.run, |
115 emphasisData, &glyphBuffer, | 115 emphasisData, &glyphBuffer, |
116 runInfo.from, runInfo.to); | 116 runInfo.from, runInfo.to); |
117 } else { | 117 } else { |
118 width = shaper.fillGlyphBuffer(this, runInfo.run, nullptr, &glyphBuffer, | 118 width = shaper.fillGlyphBuffer(this, runInfo.run, nullptr, &glyphBuffer, |
119 runInfo.from, runInfo.to); | 119 runInfo.from, runInfo.to); |
120 } | 120 } |
121 return width; | 121 return width; |
122 } | 122 } |
123 | 123 |
124 bool Font::drawText(SkCanvas* canvas, | 124 bool Font::drawText(PaintCanvas* canvas, |
125 const TextRunPaintInfo& runInfo, | 125 const TextRunPaintInfo& runInfo, |
126 const FloatPoint& point, | 126 const FloatPoint& point, |
127 float deviceScaleFactor, | 127 float deviceScaleFactor, |
128 const SkPaint& paint) const { | 128 const PaintFlags& paint) const { |
129 // Don't draw anything while we are using custom fonts that are in the process | 129 // Don't draw anything while we are using custom fonts that are in the process |
130 // of loading. | 130 // of loading. |
131 if (shouldSkipDrawing()) | 131 if (shouldSkipDrawing()) |
132 return false; | 132 return false; |
133 | 133 |
134 if (runInfo.cachedTextBlob && runInfo.cachedTextBlob->get()) { | 134 if (runInfo.cachedTextBlob && runInfo.cachedTextBlob->get()) { |
135 // we have a pre-cached blob -- happy joy! | 135 // we have a pre-cached blob -- happy joy! |
136 canvas->drawTextBlob(runInfo.cachedTextBlob->get(), point.x(), point.y(), | 136 canvas->drawTextBlob(runInfo.cachedTextBlob->get(), point.x(), point.y(), |
137 paint); | 137 paint); |
138 return true; | 138 return true; |
139 } | 139 } |
140 | 140 |
141 GlyphBuffer glyphBuffer; | 141 GlyphBuffer glyphBuffer; |
142 buildGlyphBuffer(runInfo, glyphBuffer); | 142 buildGlyphBuffer(runInfo, glyphBuffer); |
143 | 143 |
144 drawGlyphBuffer(canvas, paint, runInfo, glyphBuffer, point, | 144 drawGlyphBuffer(canvas, paint, runInfo, glyphBuffer, point, |
145 deviceScaleFactor); | 145 deviceScaleFactor); |
146 return true; | 146 return true; |
147 } | 147 } |
148 | 148 |
149 bool Font::drawBidiText(SkCanvas* canvas, | 149 bool Font::drawBidiText(PaintCanvas* canvas, |
150 const TextRunPaintInfo& runInfo, | 150 const TextRunPaintInfo& runInfo, |
151 const FloatPoint& point, | 151 const FloatPoint& point, |
152 CustomFontNotReadyAction customFontNotReadyAction, | 152 CustomFontNotReadyAction customFontNotReadyAction, |
153 float deviceScaleFactor, | 153 float deviceScaleFactor, |
154 const SkPaint& paint) const { | 154 const PaintFlags& paint) const { |
155 // Don't draw anything while we are using custom fonts that are in the process | 155 // Don't draw anything while we are using custom fonts that are in the process |
156 // of loading, except if the 'force' argument is set to true (in which case it | 156 // of loading, except if the 'force' argument is set to true (in which case it |
157 // will use a fallback font). | 157 // will use a fallback font). |
158 if (shouldSkipDrawing() && | 158 if (shouldSkipDrawing() && |
159 customFontNotReadyAction == DoNotPaintIfFontNotReady) | 159 customFontNotReadyAction == DoNotPaintIfFontNotReady) |
160 return false; | 160 return false; |
161 | 161 |
162 // sub-run painting is not supported for Bidi text. | 162 // sub-run painting is not supported for Bidi text. |
163 const TextRun& run = runInfo.run; | 163 const TextRun& run = runInfo.run; |
164 ASSERT((runInfo.from == 0) && (runInfo.to == run.length())); | 164 ASSERT((runInfo.from == 0) && (runInfo.to == run.length())); |
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194 deviceScaleFactor); | 194 deviceScaleFactor); |
195 | 195 |
196 bidiRun = bidiRun->next(); | 196 bidiRun = bidiRun->next(); |
197 currPoint.move(runWidth, 0); | 197 currPoint.move(runWidth, 0); |
198 } | 198 } |
199 | 199 |
200 bidiRuns.deleteRuns(); | 200 bidiRuns.deleteRuns(); |
201 return true; | 201 return true; |
202 } | 202 } |
203 | 203 |
204 void Font::drawEmphasisMarks(SkCanvas* canvas, | 204 void Font::drawEmphasisMarks(PaintCanvas* canvas, |
205 const TextRunPaintInfo& runInfo, | 205 const TextRunPaintInfo& runInfo, |
206 const AtomicString& mark, | 206 const AtomicString& mark, |
207 const FloatPoint& point, | 207 const FloatPoint& point, |
208 float deviceScaleFactor, | 208 float deviceScaleFactor, |
209 const SkPaint& paint) const { | 209 const PaintFlags& paint) const { |
210 if (shouldSkipDrawing()) | 210 if (shouldSkipDrawing()) |
211 return; | 211 return; |
212 | 212 |
213 FontCachePurgePreventer purgePreventer; | 213 FontCachePurgePreventer purgePreventer; |
214 | 214 |
215 GlyphData emphasisGlyphData; | 215 GlyphData emphasisGlyphData; |
216 if (!getEmphasisMarkGlyphData(mark, emphasisGlyphData)) | 216 if (!getEmphasisMarkGlyphData(mark, emphasisGlyphData)) |
217 return; | 217 return; |
218 | 218 |
219 ASSERT(emphasisGlyphData.fontData); | 219 ASSERT(emphasisGlyphData.fontData); |
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309 // For vertical upright text we need to compensate the inherited 90deg CW | 309 // For vertical upright text we need to compensate the inherited 90deg CW |
310 // rotation (using a 90deg CCW rotation). | 310 // rotation (using a 90deg CCW rotation). |
311 return (font->platformData().isVerticalAnyUpright() && font->verticalData()) | 311 return (font->platformData().isVerticalAnyUpright() && font->verticalData()) |
312 ? CCWRotation | 312 ? CCWRotation |
313 : NoRotation; | 313 : NoRotation; |
314 } | 314 } |
315 | 315 |
316 void appendRun(unsigned start, | 316 void appendRun(unsigned start, |
317 unsigned count, | 317 unsigned count, |
318 const SimpleFontData* fontData) { | 318 const SimpleFontData* fontData) { |
319 SkPaint paint; | 319 PaintFlags paint; |
320 fontData->platformData().setupPaint(&paint, m_deviceScaleFactor, m_font); | 320 fontData->platformData().setupPaint(&paint, m_deviceScaleFactor, m_font); |
321 paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding); | 321 paint.setTextEncoding(PaintFlags::kGlyphID_TextEncoding); |
322 | 322 |
323 const SkTextBlobBuilder::RunBuffer& buffer = | 323 const SkTextBlobBuilder::RunBuffer& buffer = |
324 m_hasVerticalOffsets ? m_builder.allocRunPos(paint, count) | 324 m_hasVerticalOffsets ? m_builder.allocRunPos(paint, count) |
325 : m_builder.allocRunPosH(paint, count, 0); | 325 : m_builder.allocRunPosH(paint, count, 0); |
326 | 326 |
327 const uint16_t* glyphs = m_buffer.glyphs(start); | 327 const uint16_t* glyphs = m_buffer.glyphs(start); |
328 const float* offsets = m_buffer.offsets(start); | 328 const float* offsets = m_buffer.offsets(start); |
329 std::copy(glyphs, glyphs + count, buffer.glyphs); | 329 std::copy(glyphs, glyphs + count, buffer.glyphs); |
330 | 330 |
331 if (m_rotation == NoRotation) { | 331 if (m_rotation == NoRotation) { |
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354 | 354 |
355 SkTextBlobBuilder m_builder; | 355 SkTextBlobBuilder m_builder; |
356 unsigned m_index; | 356 unsigned m_index; |
357 unsigned m_endIndex; | 357 unsigned m_endIndex; |
358 unsigned m_blobCount; | 358 unsigned m_blobCount; |
359 BlobRotation m_rotation; | 359 BlobRotation m_rotation; |
360 }; | 360 }; |
361 | 361 |
362 } // anonymous namespace | 362 } // anonymous namespace |
363 | 363 |
364 void Font::drawGlyphBuffer(SkCanvas* canvas, | 364 void Font::drawGlyphBuffer(PaintCanvas* canvas, |
365 const SkPaint& paint, | 365 const PaintFlags& paint, |
366 const TextRunPaintInfo& runInfo, | 366 const TextRunPaintInfo& runInfo, |
367 const GlyphBuffer& glyphBuffer, | 367 const GlyphBuffer& glyphBuffer, |
368 const FloatPoint& point, | 368 const FloatPoint& point, |
369 float deviceScaleFactor) const { | 369 float deviceScaleFactor) const { |
370 GlyphBufferBloberizer bloberizer(glyphBuffer, this, deviceScaleFactor); | 370 GlyphBufferBloberizer bloberizer(glyphBuffer, this, deviceScaleFactor); |
371 std::pair<sk_sp<SkTextBlob>, BlobRotation> blob; | 371 std::pair<sk_sp<SkTextBlob>, BlobRotation> blob; |
372 | 372 |
373 while (!bloberizer.done()) { | 373 while (!bloberizer.done()) { |
374 blob = bloberizer.next(); | 374 blob = bloberizer.next(); |
375 ASSERT(blob.first); | 375 ASSERT(blob.first); |
376 | 376 |
377 SkAutoCanvasRestore autoRestore(canvas, false); | 377 PaintCanvasAutoRestore autoRestore(canvas, false); |
378 if (blob.second == CCWRotation) { | 378 if (blob.second == CCWRotation) { |
379 canvas->save(); | 379 canvas->save(); |
380 | 380 |
381 SkMatrix m; | 381 SkMatrix m; |
382 m.setSinCos(-1, 0, point.x(), point.y()); | 382 m.setSinCos(-1, 0, point.x(), point.y()); |
383 canvas->concat(m); | 383 canvas->concat(m); |
384 } | 384 } |
385 | 385 |
386 canvas->drawTextBlob(blob.first, point.x(), point.y(), paint); | 386 canvas->drawTextBlob(blob.first, point.x(), point.y(), paint); |
387 } | 387 } |
388 | 388 |
389 // Cache results when | 389 // Cache results when |
390 // 1) requested by clients, and | 390 // 1) requested by clients, and |
391 // 2) the glyph buffer is encoded as a single blob, and | 391 // 2) the glyph buffer is encoded as a single blob, and |
392 // 3) the blob is not upright/rotated | 392 // 3) the blob is not upright/rotated |
393 if (runInfo.cachedTextBlob && bloberizer.blobCount() == 1 && | 393 if (runInfo.cachedTextBlob && bloberizer.blobCount() == 1 && |
394 blob.second == NoRotation) { | 394 blob.second == NoRotation) { |
395 ASSERT(!*runInfo.cachedTextBlob); | 395 ASSERT(!*runInfo.cachedTextBlob); |
396 *runInfo.cachedTextBlob = std::move(blob.first); | 396 *runInfo.cachedTextBlob = std::move(blob.first); |
397 ASSERT(*runInfo.cachedTextBlob); | 397 ASSERT(*runInfo.cachedTextBlob); |
398 } | 398 } |
399 } | 399 } |
400 | 400 |
401 static int getInterceptsFromBloberizer(const GlyphBuffer& glyphBuffer, | 401 static int getInterceptsFromBloberizer(const GlyphBuffer& glyphBuffer, |
402 const Font* font, | 402 const Font* font, |
403 const SkPaint& paint, | 403 const PaintFlags& paint, |
404 float deviceScaleFactor, | 404 float deviceScaleFactor, |
405 const std::tuple<float, float>& bounds, | 405 const std::tuple<float, float>& bounds, |
406 SkScalar* interceptsBuffer) { | 406 SkScalar* interceptsBuffer) { |
407 SkScalar boundsArray[2] = {std::get<0>(bounds), std::get<1>(bounds)}; | 407 SkScalar boundsArray[2] = {std::get<0>(bounds), std::get<1>(bounds)}; |
408 GlyphBufferBloberizer bloberizer(glyphBuffer, font, deviceScaleFactor); | 408 GlyphBufferBloberizer bloberizer(glyphBuffer, font, deviceScaleFactor); |
409 std::pair<sk_sp<SkTextBlob>, BlobRotation> blob; | 409 std::pair<sk_sp<SkTextBlob>, BlobRotation> blob; |
410 | 410 |
411 int numIntervals = 0; | 411 int numIntervals = 0; |
412 while (!bloberizer.done()) { | 412 while (!bloberizer.done()) { |
413 blob = bloberizer.next(); | 413 blob = bloberizer.next(); |
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424 if (interceptsBuffer) | 424 if (interceptsBuffer) |
425 offsetInterceptsBuffer = &interceptsBuffer[numIntervals]; | 425 offsetInterceptsBuffer = &interceptsBuffer[numIntervals]; |
426 numIntervals += paint.getTextBlobIntercepts(blob.first.get(), boundsArray, | 426 numIntervals += paint.getTextBlobIntercepts(blob.first.get(), boundsArray, |
427 offsetInterceptsBuffer); | 427 offsetInterceptsBuffer); |
428 } | 428 } |
429 return numIntervals; | 429 return numIntervals; |
430 } | 430 } |
431 | 431 |
432 void Font::getTextIntercepts(const TextRunPaintInfo& runInfo, | 432 void Font::getTextIntercepts(const TextRunPaintInfo& runInfo, |
433 float deviceScaleFactor, | 433 float deviceScaleFactor, |
434 const SkPaint& paint, | 434 const PaintFlags& paint, |
435 const std::tuple<float, float>& bounds, | 435 const std::tuple<float, float>& bounds, |
436 Vector<TextIntercept>& intercepts) const { | 436 Vector<TextIntercept>& intercepts) const { |
437 if (shouldSkipDrawing()) | 437 if (shouldSkipDrawing()) |
438 return; | 438 return; |
439 | 439 |
440 if (runInfo.cachedTextBlob && runInfo.cachedTextBlob->get()) { | 440 if (runInfo.cachedTextBlob && runInfo.cachedTextBlob->get()) { |
441 SkScalar boundsArray[2] = {std::get<0>(bounds), std::get<1>(bounds)}; | 441 SkScalar boundsArray[2] = {std::get<0>(bounds), std::get<1>(bounds)}; |
442 int numIntervals = paint.getTextBlobIntercepts( | 442 int numIntervals = paint.getTextBlobIntercepts( |
443 runInfo.cachedTextBlob->get(), boundsArray, nullptr); | 443 runInfo.cachedTextBlob->get(), boundsArray, nullptr); |
444 if (!numIntervals) | 444 if (!numIntervals) |
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636 | 636 |
637 bool Font::loadingCustomFonts() const { | 637 bool Font::loadingCustomFonts() const { |
638 return m_fontFallbackList && m_fontFallbackList->loadingCustomFonts(); | 638 return m_fontFallbackList && m_fontFallbackList->loadingCustomFonts(); |
639 } | 639 } |
640 | 640 |
641 bool Font::isFallbackValid() const { | 641 bool Font::isFallbackValid() const { |
642 return !m_fontFallbackList || m_fontFallbackList->isValid(); | 642 return !m_fontFallbackList || m_fontFallbackList->isValid(); |
643 } | 643 } |
644 | 644 |
645 } // namespace blink | 645 } // namespace blink |
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