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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 GrStencilAndCoverTextContext_DEFINED | 8 #ifndef GrStencilAndCoverTextContext_DEFINED |
9 #define GrStencilAndCoverTextContext_DEFINED | 9 #define GrStencilAndCoverTextContext_DEFINED |
10 | 10 |
11 #include "GrTextContext.h" | 11 #include "GrTextContext.h" |
12 #include "GrDrawTarget.h" | 12 #include "GrDrawTarget.h" |
13 #include "GrStrokeInfo.h" | 13 #include "GrStrokeInfo.h" |
14 | 14 |
15 class GrTextStrike; | 15 class GrTextStrike; |
16 class GrPath; | 16 class GrPath; |
17 class GrPathRange; | 17 class GrPathRange; |
18 | 18 |
19 /* | 19 /* |
20 * This class implements text rendering using stencil and cover path rendering | 20 * This class implements text rendering using stencil and cover path rendering |
21 * (by the means of GrDrawTarget::drawPath). | 21 * (by the means of GrDrawTarget::drawPath). |
22 * This class exposes the functionality through GrTextContext interface. | 22 * This class exposes the functionality through GrTextContext interface. |
23 */ | 23 */ |
24 class GrStencilAndCoverTextContext : public GrTextContext { | 24 class GrStencilAndCoverTextContext : public GrTextContext { |
25 public: | 25 public: |
26 static GrStencilAndCoverTextContext* Create(GrContext*, const SkDeviceProper
ties&); | 26 static GrStencilAndCoverTextContext* Create(GrContext*, GrDrawContext*, |
| 27 const SkDeviceProperties&, bool
fallbackUsesDFT); |
27 | 28 |
28 virtual ~GrStencilAndCoverTextContext(); | 29 virtual ~GrStencilAndCoverTextContext(); |
29 | 30 |
30 private: | 31 private: |
31 static const int kGlyphBufferSize = 1024; | 32 static const int kGlyphBufferSize = 1024; |
32 | 33 |
33 enum RenderMode { | 34 enum RenderMode { |
34 /** | 35 /** |
35 * This is the render mode used by drawText(), which is mainly used by | 36 * This is the render mode used by drawText(), which is mainly used by |
36 * the Skia unit tests. It tries match the other text backends exactly, | 37 * the Skia unit tests. It tries match the other text backends exactly, |
(...skipping 23 matching lines...) Expand all Loading... |
60 GrStrokeInfo fStroke; | 61 GrStrokeInfo fStroke; |
61 uint16_t fGlyphIndices[kGlyphBuff
erSize]; | 62 uint16_t fGlyphIndices[kGlyphBuff
erSize]; |
62 SkPoint fGlyphPositions[kGlyphBu
fferSize]; | 63 SkPoint fGlyphPositions[kGlyphBu
fferSize]; |
63 int fQueuedGlyphCount; | 64 int fQueuedGlyphCount; |
64 int fFallbackGlyphsIdx; | 65 int fFallbackGlyphsIdx; |
65 SkMatrix fContextInitialMatrix; | 66 SkMatrix fContextInitialMatrix; |
66 SkMatrix fViewMatrix; | 67 SkMatrix fViewMatrix; |
67 SkMatrix fLocalMatrix; | 68 SkMatrix fLocalMatrix; |
68 bool fUsingDeviceSpaceGlyphs; | 69 bool fUsingDeviceSpaceGlyphs; |
69 | 70 |
70 GrStencilAndCoverTextContext(GrContext*, const SkDeviceProperties&); | 71 GrStencilAndCoverTextContext(GrContext*, GrDrawContext*, const SkDevicePrope
rties&); |
71 | 72 |
72 bool canDraw(const GrRenderTarget*, const GrClip&, const GrPaint&, | 73 bool canDraw(const GrRenderTarget*, const GrClip&, const GrPaint&, |
73 const SkPaint&, const SkMatrix& viewMatrix) override; | 74 const SkPaint&, const SkMatrix& viewMatrix) override; |
74 | 75 |
75 void onDrawText(GrDrawContext*, GrRenderTarget*, const GrClip&, const GrPain
t&, const SkPaint&, | 76 void onDrawText(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPain
t&, |
76 const SkMatrix& viewMatrix, | 77 const SkMatrix& viewMatrix, |
77 const char text[], size_t byteLength, | 78 const char text[], size_t byteLength, |
78 SkScalar x, SkScalar y, const SkIRect& regionClipBounds) ove
rride; | 79 SkScalar x, SkScalar y, const SkIRect& regionClipBounds) ove
rride; |
79 void onDrawPosText(GrDrawContext*, GrRenderTarget*, const GrClip&, const GrP
aint&, const SkPaint&, | 80 void onDrawPosText(GrRenderTarget*, const GrClip&, const GrPaint&, const SkP
aint&, |
80 const SkMatrix& viewMatrix, | 81 const SkMatrix& viewMatrix, |
81 const char text[], size_t byteLength, | 82 const char text[], size_t byteLength, |
82 const SkScalar pos[], int scalarsPerPosition, | 83 const SkScalar pos[], int scalarsPerPosition, |
83 const SkPoint& offset, const SkIRect& regionClipBounds) o
verride; | 84 const SkPoint& offset, const SkIRect& regionClipBounds) o
verride; |
84 | 85 |
85 void init(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&, | 86 void init(GrRenderTarget*, const GrClip&, const GrPaint&, const SkPaint&, |
86 size_t textByteLength, RenderMode, const SkMatrix& viewMatrix, | 87 size_t textByteLength, RenderMode, const SkMatrix& viewMatrix, |
87 const SkIRect& regionClipBounds); | 88 const SkIRect& regionClipBounds); |
88 bool mapToFallbackContext(SkMatrix* inverse); | 89 bool mapToFallbackContext(SkMatrix* inverse); |
89 void appendGlyph(GrDrawContext*, const SkGlyph&, const SkPoint&); | 90 void appendGlyph(const SkGlyph&, const SkPoint&); |
90 void flush(GrDrawContext*); | 91 void flush(); |
91 void finish(GrDrawContext*); | 92 void finish(); |
92 | 93 |
93 }; | 94 }; |
94 | 95 |
95 #endif | 96 #endif |
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