The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/gpu/GrDistanceFieldTextContext.h
gfx/skia/trunk/src/gpu/GrDistanceFieldTextContext.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:e47e03facd11 |
|---|---|
| 1 /* | |
| 2 * Copyright 2013 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 #ifndef GrDistanceFieldTextContext_DEFINED | |
| 9 #define GrDistanceFieldTextContext_DEFINED | |
| 10 | |
| 11 #include "GrTextContext.h" | |
| 12 | |
| 13 class GrTextStrike; | |
| 14 | |
| 15 /* | |
| 16 * This class implements GrTextContext using distance field fonts | |
| 17 */ | |
| 18 class GrDistanceFieldTextContext : public GrTextContext { | |
| 19 public: | |
| 20 GrDistanceFieldTextContext(GrContext*, const SkDeviceProperties&); | |
| 21 virtual ~GrDistanceFieldTextContext(); | |
| 22 | |
| 23 virtual void drawText(const GrPaint&, const SkPaint&, const char text[], size_t byteLength, | |
| 24 SkScalar x, SkScalar y) SK_OVERRIDE; | |
| 25 virtual void drawPosText(const GrPaint&, const SkPaint&, | |
| 26 const char text[], size_t byteLength, | |
| 27 const SkScalar pos[], SkScalar constY, | |
| 28 int scalarsPerPosition) SK_OVERRIDE; | |
| 29 | |
| 30 virtual bool canDraw(const SkPaint& paint) SK_OVERRIDE; | |
| 31 | |
| 32 private: | |
| 33 GrTextStrike* fStrike; | |
| 34 SkScalar fTextRatio; | |
| 35 | |
| 36 void init(const GrPaint&, const SkPaint&); | |
| 37 void drawPackedGlyph(GrGlyph::PackedID, GrFixed left, GrFixed top, GrFontScaler*); | |
| 38 void flushGlyphs(); // automatically called by destructor | |
| 39 void finish(); | |
| 40 | |
| 41 enum { | |
| 42 kMinRequestedGlyphs = 1, | |
| 43 kDefaultRequestedGlyphs = 64, | |
| 44 kMinRequestedVerts = kMinRequestedGlyphs * 4, | |
| 45 kDefaultRequestedVerts = kDefaultRequestedGlyphs * 4, | |
| 46 }; | |
| 47 | |
| 48 SkPoint* fVertices; | |
| 49 int32_t fMaxVertices; | |
| 50 GrTexture* fCurrTexture; | |
| 51 int fCurrVertex; | |
| 52 }; | |
| 53 | |
| 54 #endif |
