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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 GrDefaultGeoProcFactory_DEFINED | 8 #ifndef GrDefaultGeoProcFactory_DEFINED |
9 #define GrDefaultGeoProcFactory_DEFINED | 9 #define GrDefaultGeoProcFactory_DEFINED |
10 | 10 |
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104 Coverage(Type type) : fType(type), fCoverage(0xff) { | 104 Coverage(Type type) : fType(type), fCoverage(0xff) { |
105 SkASSERT(type != kUniform_Type); | 105 SkASSERT(type != kUniform_Type); |
106 } | 106 } |
107 | 107 |
108 Type fType; | 108 Type fType; |
109 uint8_t fCoverage; | 109 uint8_t fCoverage; |
110 }; | 110 }; |
111 | 111 |
112 struct LocalCoords { | 112 struct LocalCoords { |
113 enum Type { | 113 enum Type { |
114 kNone_Type, | 114 kUnused_Type, |
115 kUsePosition_Type, | 115 kUsePosition_Type, |
116 kHasExplicit_Type, | 116 kHasExplicit_Type, |
117 }; | 117 }; |
| 118 LocalCoords(Type type) : fType(type), fMatrix(NULL) {} |
| 119 LocalCoords(Type type, const SkMatrix* matrix) : fType(type), fMatrix(ma
trix) { |
| 120 SkASSERT(kUnused_Type != type); |
| 121 } |
| 122 bool hasLocalMatrix() const { return NULL != fMatrix; } |
| 123 |
| 124 Type fType; |
| 125 const SkMatrix* fMatrix; |
118 }; | 126 }; |
119 | 127 |
120 static const GrGeometryProcessor* Create(const Color&, | 128 static const GrGeometryProcessor* Create(const Color&, |
121 const Coverage&, | 129 const Coverage&, |
122 LocalCoords::Type, | 130 const LocalCoords&, |
123 const SkMatrix& viewMatrix = SkMatr
ix::I(), | 131 const SkMatrix& viewMatrix = SkMatr
ix::I()); |
124 const SkMatrix& localMatrix = SkMat
rix::I()); | |
125 | 132 |
126 /* | 133 /* |
127 * The following functions are used to create default GPs. If you just need
to create | 134 * Use this factory to create a GrGeometryProcessor that expects a device sp
ace vertex position |
128 * attributes separately from creating the default GP, use the SetAttribs fu
nction followed | 135 * attribute. The view matrix must still be provided to compute correctly tr
ansformed |
129 * by the Create function. Otherwise use CreateAndSetAttribs to do both at o
nce. | 136 * coordinates for GrFragmentProcessors. It may fail if the view matrix is n
ot invertible. |
130 * | |
131 * You must unref the return from Create. | |
132 */ | 137 */ |
133 // TODO clean this up | 138 static const GrGeometryProcessor* CreateForDeviceSpace(const Color&, |
| 139 const Coverage&, |
| 140 const LocalCoords&, |
| 141 const SkMatrix& viewM
atrix); |
| 142 |
| 143 // TODO deprecate this |
134 static const GrGeometryProcessor* Create(uint32_t gpTypeFlags, | 144 static const GrGeometryProcessor* Create(uint32_t gpTypeFlags, |
135 GrColor, | 145 GrColor, |
136 bool localCoordsWillBeRead, | 146 bool localCoordsWillBeRead, |
137 bool coverageWillBeIgnored, | 147 bool coverageWillBeIgnored, |
138 const SkMatrix& viewMatrix = SkMatr
ix::I(), | 148 const SkMatrix& viewMatrix = SkMatr
ix::I(), |
139 const SkMatrix& localMatrix = SkMat
rix::I(), | 149 const SkMatrix& localMatrix = SkMat
rix::I(), |
140 uint8_t coverage = 0xff); | 150 uint8_t coverage = 0xff); |
141 | 151 |
142 static size_t DefaultVertexStride() { return sizeof(PositionAttr); } | 152 static size_t DefaultVertexStride() { return sizeof(PositionAttr); } |
143 }; | 153 }; |
144 | 154 |
145 #endif | 155 #endif |
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