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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef GrDistanceFieldTextContext_DEFINED | 8 #ifndef GrDistanceFieldTextContext_DEFINED |
9 #define GrDistanceFieldTextContext_DEFINED | 9 #define GrDistanceFieldTextContext_DEFINED |
10 | 10 |
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23 virtual void drawText(const GrPaint&, const SkPaint&, const char text[], siz
e_t byteLength, | 23 virtual void drawText(const GrPaint&, const SkPaint&, const char text[], siz
e_t byteLength, |
24 SkScalar x, SkScalar y) SK_OVERRIDE; | 24 SkScalar x, SkScalar y) SK_OVERRIDE; |
25 virtual void drawPosText(const GrPaint&, const SkPaint&, | 25 virtual void drawPosText(const GrPaint&, const SkPaint&, |
26 const char text[], size_t byteLength, | 26 const char text[], size_t byteLength, |
27 const SkScalar pos[], SkScalar constY, | 27 const SkScalar pos[], SkScalar constY, |
28 int scalarsPerPosition) SK_OVERRIDE; | 28 int scalarsPerPosition) SK_OVERRIDE; |
29 | 29 |
30 virtual bool canDraw(const SkPaint& paint) SK_OVERRIDE; | 30 virtual bool canDraw(const SkPaint& paint) SK_OVERRIDE; |
31 | 31 |
32 private: | 32 private: |
33 GrTextStrike* fStrike; | |
34 SkScalar fTextRatio; | |
35 bool fUseLCDText; | |
36 bool fEnableDFRendering; | |
37 SkAutoTUnref<GrEffect> fCachedEffect; | |
38 // Used to check whether fCachedEffect is still valid. | |
39 uint32_t fEffectTextureUniqueID; | |
40 SkColor fEffectColor; | |
41 uint32_t fEffectFlags; | |
42 GrTexture* fGammaTexture; | |
43 | |
44 void init(const GrPaint&, const SkPaint&); | 33 void init(const GrPaint&, const SkPaint&); |
| 34 void allocateVertices(const char text[], size_t byteLength); |
45 void drawPackedGlyph(GrGlyph::PackedID, SkFixed left, SkFixed top, GrFontSca
ler*); | 35 void drawPackedGlyph(GrGlyph::PackedID, SkFixed left, SkFixed top, GrFontSca
ler*); |
46 void flushGlyphs(); // automatically called by destructor | 36 void flushGlyphs(); // automatically called by destructor |
47 void setupCoverageEffect(const SkColor& filteredColor); | 37 void setupCoverageEffect(const SkColor& filteredColor); |
48 void finish(); | 38 void finish(); |
49 | 39 |
50 enum { | 40 enum { |
51 kMinRequestedGlyphs = 1, | 41 kMinRequestedGlyphs = 1, |
52 kDefaultRequestedGlyphs = 64, | 42 kDefaultRequestedGlyphs = 64, |
53 kMinRequestedVerts = kMinRequestedGlyphs * 4, | 43 kMinRequestedVerts = kMinRequestedGlyphs * 4, |
54 kDefaultRequestedVerts = kDefaultRequestedGlyphs * 4, | 44 kDefaultRequestedVerts = kDefaultRequestedGlyphs * 4, |
55 }; | 45 }; |
56 | 46 |
| 47 GrTextStrike* fStrike; |
| 48 SkScalar fTextRatio; |
| 49 bool fUseLCDText; |
| 50 bool fEnableDFRendering; |
| 51 SkAutoTUnref<GrEffect> fCachedEffect; |
| 52 // Used to check whether fCachedEffect is still valid. |
| 53 uint32_t fEffectTextureUniqueID; |
| 54 SkColor fEffectColor; |
| 55 uint32_t fEffectFlags; |
| 56 GrTexture* fGammaTexture; |
| 57 |
57 void* fVertices; | 58 void* fVertices; |
58 int32_t fMaxVertices; | 59 int fVertexCount; |
59 GrTexture* fCurrTexture; | |
60 int fCurrVertex; | 60 int fCurrVertex; |
61 SkRect fVertexBounds; | 61 SkRect fVertexBounds; |
62 }; | 62 }; |
63 | 63 |
64 #endif | 64 #endif |
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