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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 GrGLPathRendering_DEFINED | 8 #ifndef GrGLPathRendering_DEFINED |
9 #define GrGLPathRendering_DEFINED | 9 #define GrGLPathRendering_DEFINED |
10 | 10 |
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32 GrGLPathRendering(GrGLGpu* gpu); | 32 GrGLPathRendering(GrGLGpu* gpu); |
33 virtual ~GrGLPathRendering(); | 33 virtual ~GrGLPathRendering(); |
34 | 34 |
35 // GrPathRendering implementations. | 35 // GrPathRendering implementations. |
36 GrPath* createPath(const SkPath&, const GrStrokeInfo&) override; | 36 GrPath* createPath(const SkPath&, const GrStrokeInfo&) override; |
37 virtual GrPathRange* createPathRange(GrPathRange::PathGenerator*, | 37 virtual GrPathRange* createPathRange(GrPathRange::PathGenerator*, |
38 const GrStrokeInfo&) override; | 38 const GrStrokeInfo&) override; |
39 virtual GrPathRange* createGlyphs(const SkTypeface*, | 39 virtual GrPathRange* createGlyphs(const SkTypeface*, |
40 const SkDescriptor*, | 40 const SkDescriptor*, |
41 const GrStrokeInfo&) override; | 41 const GrStrokeInfo&) override; |
42 void stencilPath(const GrPath*, const GrStencilSettings&) override; | |
43 void drawPath(const GrPath*, const GrStencilSettings&) override; | |
44 virtual void drawPaths(const GrPathRange*, const void* indices, PathIndexTyp
e, | |
45 const float transformValues[], PathTransformType, int
count, | |
46 const GrStencilSettings&) override; | |
47 | 42 |
48 /* Called when the 3D context state is unknown. */ | 43 /* Called when the 3D context state is unknown. */ |
49 void resetContext(); | 44 void resetContext(); |
50 | 45 |
51 /** | 46 /** |
52 * Called when the GPU resources have been lost and need to be abandoned | 47 * Called when the GPU resources have been lost and need to be abandoned |
53 * (for example after a context loss). | 48 * (for example after a context loss). |
54 */ | 49 */ |
55 void abandonGpuResources(); | 50 void abandonGpuResources(); |
56 | 51 |
57 // Functions for "separable shader" texturing support. | 52 // Functions for "separable shader" texturing support. |
58 void setProgramPathFragmentInputTransform(GrGLuint program, GrGLint location
, | 53 void setProgramPathFragmentInputTransform(GrGLuint program, GrGLint location
, |
59 GrGLenum genMode, GrGLint componen
ts, | 54 GrGLenum genMode, GrGLint componen
ts, |
60 const SkMatrix&); | 55 const SkMatrix&); |
61 | 56 |
62 /* Sets the projection matrix for path rendering */ | 57 /* Sets the projection matrix for path rendering */ |
63 void setProjectionMatrix(const SkMatrix& matrix, | 58 void setProjectionMatrix(const SkMatrix& matrix, |
64 const SkISize& renderTargetSize, | 59 const SkISize& renderTargetSize, |
65 GrSurfaceOrigin renderTargetOrigin); | 60 GrSurfaceOrigin renderTargetOrigin); |
66 | 61 |
67 GrGLuint genPaths(GrGLsizei range); | 62 GrGLuint genPaths(GrGLsizei range); |
68 GrGLvoid deletePaths(GrGLuint path, GrGLsizei range); | 63 GrGLvoid deletePaths(GrGLuint path, GrGLsizei range); |
69 | 64 |
| 65 protected: |
| 66 void onStencilPath(const StencilPathArgs&, const GrPath*) override; |
| 67 void onDrawPath(const DrawPathArgs&, const GrPath*) override; |
| 68 void onDrawPaths(const DrawPathArgs&, const GrPathRange*, const void* indice
s, PathIndexType, |
| 69 const float transformValues[], PathTransformType, int count
) override; |
70 private: | 70 private: |
71 /** | 71 /** |
72 * Mark certain functionality as not supported if the driver version is too | 72 * Mark certain functionality as not supported if the driver version is too |
73 * old and a backup implementation is not practical. | 73 * old and a backup implementation is not practical. |
74 */ | 74 */ |
75 struct Caps { | 75 struct Caps { |
76 bool stencilThenCoverSupport : 1; | 76 bool stencilThenCoverSupport : 1; |
77 bool fragmentInputGenSupport : 1; | 77 bool fragmentInputGenSupport : 1; |
78 bool glyphLoadingSupport : 1; | 78 bool glyphLoadingSupport : 1; |
79 }; | 79 }; |
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122 0, 0, 1); | 122 0, 0, 1); |
123 } else { | 123 } else { |
124 combined.setAll(SkIntToScalar(2) / fRenderTargetSize.fWidth, 0,
-SK_Scalar1, | 124 combined.setAll(SkIntToScalar(2) / fRenderTargetSize.fWidth, 0,
-SK_Scalar1, |
125 0, SkIntToScalar(2) / fRenderTargetSize.fHeight,
-SK_Scalar1, | 125 0, SkIntToScalar(2) / fRenderTargetSize.fHeight,
-SK_Scalar1, |
126 0, 0, 1); | 126 0, 0, 1); |
127 } | 127 } |
128 combined.preConcat(fViewMatrix); | 128 combined.preConcat(fViewMatrix); |
129 GrGLGetMatrix<Size>(destMatrix, combined); | 129 GrGLGetMatrix<Size>(destMatrix, combined); |
130 } | 130 } |
131 }; | 131 }; |
| 132 GrGLGpu* gpu(); |
132 | 133 |
133 GrGLGpu* fGpu; | |
134 SkAutoTDelete<GrGLNameAllocator> fPathNameAllocator; | 134 SkAutoTDelete<GrGLNameAllocator> fPathNameAllocator; |
135 Caps fCaps; | 135 Caps fCaps; |
136 MatrixState fHWProjectionMatrixState; | 136 MatrixState fHWProjectionMatrixState; |
137 GrStencilSettings fHWPathStencilSettings; | 137 GrStencilSettings fHWPathStencilSettings; |
138 struct PathTexGenData { | 138 struct PathTexGenData { |
139 GrGLenum fMode; | 139 GrGLenum fMode; |
140 GrGLint fNumComponents; | 140 GrGLint fNumComponents; |
141 GrGLfloat fCoefficients[3 * 3]; | 141 GrGLfloat fCoefficients[3 * 3]; |
142 }; | 142 }; |
143 }; | 143 }; |
144 | 144 |
145 #endif | 145 #endif |
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