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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 GrGLSLGeometryProcessor_DEFINED | 8 #ifndef GrGLSLGeometryProcessor_DEFINED |
9 #define GrGLSLGeometryProcessor_DEFINED | 9 #define GrGLSLGeometryProcessor_DEFINED |
10 | 10 |
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35 void setTransformDataHelper(const GrPrimitiveProcessor& primProc, | 35 void setTransformDataHelper(const GrPrimitiveProcessor& primProc, |
36 const GrGLSLProgramDataManager& 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(GrGLSLGPBuilder* gp, | 45 void emitTransforms(GrGLSLVertexBuilder* vb, |
46 GrGLSLVertexBuilder* vb, | |
47 GrGLSLVaryingHandler* varyingHandler, | 46 GrGLSLVaryingHandler* varyingHandler, |
| 47 GrGLSLUniformHandler* uniformHandler, |
48 const GrShaderVar& posVar, | 48 const GrShaderVar& posVar, |
49 const char* localCoords, | 49 const char* localCoords, |
50 const TransformsIn& tin, | 50 const TransformsIn& tin, |
51 TransformsOut* tout) { | 51 TransformsOut* tout) { |
52 this->emitTransforms(gp, vb, varyingHandler, posVar, localCoords, SkMatr
ix::I(), tin, tout); | 52 this->emitTransforms(vb, varyingHandler, uniformHandler, |
| 53 posVar, localCoords, SkMatrix::I(), tin, tout); |
53 } | 54 } |
54 | 55 |
55 // Emit pre-transformed coords as a vertex attribute per coord-transform. | 56 // Emit pre-transformed coords as a vertex attribute per coord-transform. |
56 void emitTransforms(GrGLSLGPBuilder*, | 57 void emitTransforms(GrGLSLVertexBuilder*, |
57 GrGLSLVertexBuilder*, | |
58 GrGLSLVaryingHandler*, | 58 GrGLSLVaryingHandler*, |
| 59 GrGLSLUniformHandler*, |
59 const GrShaderVar& posVar, | 60 const GrShaderVar& posVar, |
60 const char* localCoords, | 61 const char* localCoords, |
61 const SkMatrix& localMatrix, | 62 const SkMatrix& localMatrix, |
62 const TransformsIn&, | 63 const TransformsIn&, |
63 TransformsOut*); | 64 TransformsOut*); |
64 | 65 |
65 // caller has emitted transforms via attributes | 66 // caller has emitted transforms via attributes |
66 void emitTransforms(GrGLSLGPBuilder*, | 67 void emitTransforms(GrGLSLVertexBuilder*, |
67 GrGLSLVertexBuilder*, | |
68 GrGLSLVaryingHandler*, | 68 GrGLSLVaryingHandler*, |
69 const char* localCoords, | 69 const char* localCoords, |
70 const TransformsIn& tin, | 70 const TransformsIn& tin, |
71 TransformsOut* tout); | 71 TransformsOut* tout); |
72 | 72 |
73 struct GrGPArgs { | 73 struct GrGPArgs { |
74 // The variable used by a GP to store its position. It can be | 74 // The variable used by a GP to store its position. It can be |
75 // either a vec2 or a vec3 depending on the presence of perspective. | 75 // either a vec2 or a vec3 depending on the presence of perspective. |
76 GrShaderVar fPositionVar; | 76 GrShaderVar fPositionVar; |
77 }; | 77 }; |
78 | 78 |
79 // Create the correct type of position variable given the CTM | 79 // Create the correct type of position variable given the CTM |
80 void setupPosition(GrGLSLGPBuilder*, GrGLSLVertexBuilder*, GrGPArgs*, const
char* posName); | 80 void setupPosition(GrGLSLVertexBuilder*, GrGPArgs*, const char* posName); |
81 void setupPosition(GrGLSLGPBuilder*, | 81 void setupPosition(GrGLSLVertexBuilder*, |
82 GrGLSLVertexBuilder*, | 82 GrGLSLUniformHandler* uniformHandler, |
83 GrGPArgs*, | 83 GrGPArgs*, |
84 const char* posName, | 84 const char* posName, |
85 const SkMatrix& mat, | 85 const SkMatrix& mat, |
86 UniformHandle* viewMatrixUniform); | 86 UniformHandle* viewMatrixUniform); |
87 | 87 |
88 static uint32_t ComputePosKey(const SkMatrix& mat) { | 88 static uint32_t ComputePosKey(const SkMatrix& mat) { |
89 if (mat.isIdentity()) { | 89 if (mat.isIdentity()) { |
90 return 0x0; | 90 return 0x0; |
91 } else if (!mat.hasPerspective()) { | 91 } else if (!mat.hasPerspective()) { |
92 return 0x01; | 92 return 0x01; |
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111 } | 111 } |
112 } | 112 } |
113 } | 113 } |
114 | 114 |
115 virtual void onEmitCode(EmitArgs&, GrGPArgs*) = 0; | 115 virtual void onEmitCode(EmitArgs&, GrGPArgs*) = 0; |
116 | 116 |
117 typedef GrGLSLPrimitiveProcessor INHERITED; | 117 typedef GrGLSLPrimitiveProcessor INHERITED; |
118 }; | 118 }; |
119 | 119 |
120 #endif | 120 #endif |
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