OLD | NEW |
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 GrGLGeometryProcessor_DEFINED | 8 #ifndef GrGLGeometryProcessor_DEFINED |
9 #define GrGLGeometryProcessor_DEFINED | 9 #define GrGLGeometryProcessor_DEFINED |
10 | 10 |
11 #include "GrGLPrimitiveProcessor.h" | 11 #include "GrGLPrimitiveProcessor.h" |
12 | 12 |
13 class GrGLGPBuilder; | 13 class GrGLGPBuilder; |
14 | 14 |
15 /** | 15 /** |
16 * If a GL effect needs a GrGLFullShaderBuilder* object to emit vertex code, the
n it must inherit | 16 * If a GL effect needs a GrGLFullShaderBuilder* object to emit vertex code, the
n it must inherit |
17 * from this class. Since paths don't have vertices, this class is only meant to
be used internally | 17 * from this class. Since paths don't have vertices, this class is only meant to
be used internally |
18 * by skia, for special cases. | 18 * by skia, for special cases. |
19 */ | 19 */ |
20 class GrGLGeometryProcessor : public GrGLPrimitiveProcessor { | 20 class GrGLGeometryProcessor : public GrGLPrimitiveProcessor { |
21 public: | 21 public: |
22 /* Any general emit code goes in the base class emitCode. Subclasses overri
de onEmitCode */ | 22 /* Any general emit code goes in the base class emitCode. Subclasses overri
de onEmitCode */ |
23 void emitCode(EmitArgs&) override; | 23 void emitCode(EmitArgs&) override; |
24 | 24 |
25 // By default we use the identity matrix | 25 // By default we use the identity matrix |
26 void setTransformData(const GrPrimitiveProcessor&, | 26 void setTransformData(const GrPrimitiveProcessor&, |
27 const GrGLProgramDataManager& pdman, | 27 const GrGLSLProgramDataManager& pdman, |
28 int index, | 28 int index, |
29 const SkTArray<const GrCoordTransform*, true>& transfo
rms) override { | 29 const SkTArray<const GrCoordTransform*, true>& transfo
rms) override { |
30 this->setTransformDataMatrix(SkMatrix::I(), pdman, index, transforms); | 30 this->setTransformDataMatrix(SkMatrix::I(), pdman, index, transforms); |
31 } | 31 } |
32 | 32 |
33 // A helper which subclasses can use if needed | 33 // A helper which subclasses can use if needed |
34 template <class GeometryProcessor> | 34 template <class GeometryProcessor> |
35 void setTransformDataHelper(const GrPrimitiveProcessor& primProc, | 35 void setTransformDataHelper(const GrPrimitiveProcessor& primProc, |
36 const GrGLProgramDataManager& pdman, | 36 const GrGLSLProgramDataManager& pdman, |
37 int index, | 37 int index, |
38 const SkTArray<const GrCoordTransform*, true>& t
ransforms) { | 38 const SkTArray<const GrCoordTransform*, true>& t
ransforms) { |
39 const GeometryProcessor& gp = primProc.cast<GeometryProcessor>(); | 39 const GeometryProcessor& gp = primProc.cast<GeometryProcessor>(); |
40 this->setTransformDataMatrix(gp.localMatrix(), pdman, index, transforms)
; | 40 this->setTransformDataMatrix(gp.localMatrix(), pdman, index, transforms)
; |
41 } | 41 } |
42 | 42 |
43 protected: | 43 protected: |
44 // Emit a uniform matrix for each coord transform. | 44 // Emit a uniform matrix for each coord transform. |
45 void emitTransforms(GrGLGPBuilder* gp, | 45 void emitTransforms(GrGLGPBuilder* gp, |
46 const GrShaderVar& posVar, | 46 const GrShaderVar& posVar, |
(...skipping 33 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
80 return 0x0; | 80 return 0x0; |
81 } else if (!mat.hasPerspective()) { | 81 } else if (!mat.hasPerspective()) { |
82 return 0x01; | 82 return 0x01; |
83 } else { | 83 } else { |
84 return 0x02; | 84 return 0x02; |
85 } | 85 } |
86 } | 86 } |
87 | 87 |
88 private: | 88 private: |
89 void setTransformDataMatrix(const SkMatrix& localMatrix, | 89 void setTransformDataMatrix(const SkMatrix& localMatrix, |
90 const GrGLProgramDataManager& pdman, | 90 const GrGLSLProgramDataManager& pdman, |
91 int index, | 91 int index, |
92 const SkTArray<const GrCoordTransform*, true>& t
ransforms) { | 92 const SkTArray<const GrCoordTransform*, true>& t
ransforms) { |
93 SkSTArray<2, Transform, true>& procTransforms = fInstalledTransforms[ind
ex]; | 93 SkSTArray<2, Transform, true>& procTransforms = fInstalledTransforms[ind
ex]; |
94 int numTransforms = transforms.count(); | 94 int numTransforms = transforms.count(); |
95 for (int t = 0; t < numTransforms; ++t) { | 95 for (int t = 0; t < numTransforms; ++t) { |
96 SkASSERT(procTransforms[t].fHandle.isValid()); | 96 SkASSERT(procTransforms[t].fHandle.isValid()); |
97 const SkMatrix& transform = GetTransformMatrix(localMatrix, *transfo
rms[t]); | 97 const SkMatrix& transform = GetTransformMatrix(localMatrix, *transfo
rms[t]); |
98 if (!procTransforms[t].fCurrentValue.cheapEqualTo(transform)) { | 98 if (!procTransforms[t].fCurrentValue.cheapEqualTo(transform)) { |
99 pdman.setSkMatrix(procTransforms[t].fHandle.toIndex(), transform
); | 99 pdman.setSkMatrix(procTransforms[t].fHandle.toIndex(), transform
); |
100 procTransforms[t].fCurrentValue = transform; | 100 procTransforms[t].fCurrentValue = transform; |
101 } | 101 } |
102 } | 102 } |
103 } | 103 } |
104 | 104 |
105 virtual void onEmitCode(EmitArgs&, GrGPArgs*) = 0; | 105 virtual void onEmitCode(EmitArgs&, GrGPArgs*) = 0; |
106 | 106 |
107 typedef GrGLPrimitiveProcessor INHERITED; | 107 typedef GrGLPrimitiveProcessor INHERITED; |
108 }; | 108 }; |
109 | 109 |
110 #endif | 110 #endif |
OLD | NEW |