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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 |
11 #include "GrGeometryProcessor.h" | 11 #include "GrGeometryProcessor.h" |
12 | 12 |
13 class GrDrawState; | 13 class GrDrawState; |
14 | 14 |
15 /* | 15 /* |
16 * A factory for creating default Geometry Processors which simply multiply posi
tion by the uniform | 16 * A factory for creating default Geometry Processors which simply multiply posi
tion by the uniform |
17 * view matrix and wire through color, coverage, UV coords if requested. Right
now this is only | 17 * view matrix and wire through color, coverage, UV coords if requested. Right
now this is only |
18 * used in the creation of optimized draw states because adding default GPs to t
he drawstate can | 18 * used in the creation of optimized draw states because adding default GPs to t
he drawstate can |
19 * interfere with batching due to updating the drawstate. | 19 * interfere with batching due to updating the drawstate. |
20 */ | 20 */ |
21 class GrDefaultGeoProcFactory { | 21 namespace GrDefaultGeoProcFactory { |
22 public: | |
23 // Structs for adding vertex attributes | 22 // Structs for adding vertex attributes |
24 struct PositionAttr { | 23 struct PositionAttr { |
25 SkPoint fPosition; | 24 SkPoint fPosition; |
26 }; | 25 }; |
27 | 26 |
28 struct PositionCoverageAttr { | 27 struct PositionCoverageAttr { |
29 SkPoint fPosition; | 28 SkPoint fPosition; |
30 GrColor fCoverage; | 29 GrColor fCoverage; |
31 }; | 30 }; |
32 | 31 |
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118 LocalCoords(Type type) : fType(type), fMatrix(NULL) {} | 117 LocalCoords(Type type) : fType(type), fMatrix(NULL) {} |
119 LocalCoords(Type type, const SkMatrix* matrix) : fType(type), fMatrix(ma
trix) { | 118 LocalCoords(Type type, const SkMatrix* matrix) : fType(type), fMatrix(ma
trix) { |
120 SkASSERT(kUnused_Type != type); | 119 SkASSERT(kUnused_Type != type); |
121 } | 120 } |
122 bool hasLocalMatrix() const { return NULL != fMatrix; } | 121 bool hasLocalMatrix() const { return NULL != fMatrix; } |
123 | 122 |
124 Type fType; | 123 Type fType; |
125 const SkMatrix* fMatrix; | 124 const SkMatrix* fMatrix; |
126 }; | 125 }; |
127 | 126 |
128 static const GrGeometryProcessor* Create(const Color&, | 127 const GrGeometryProcessor* Create(const Color&, |
129 const Coverage&, | 128 const Coverage&, |
130 const LocalCoords&, | 129 const LocalCoords&, |
131 const SkMatrix& viewMatrix = SkMatr
ix::I()); | 130 const SkMatrix& viewMatrix = SkMatrix::I()
); |
132 | 131 |
133 /* | 132 /* |
134 * Use this factory to create a GrGeometryProcessor that expects a device sp
ace vertex position | 133 * Use this factory to create a GrGeometryProcessor that expects a device sp
ace vertex position |
135 * attribute. The view matrix must still be provided to compute correctly tr
ansformed | 134 * attribute. The view matrix must still be provided to compute correctly tr
ansformed |
136 * coordinates for GrFragmentProcessors. It may fail if the view matrix is n
ot invertible. | 135 * coordinates for GrFragmentProcessors. It may fail if the view matrix is n
ot invertible. |
137 */ | 136 */ |
138 static const GrGeometryProcessor* CreateForDeviceSpace(const Color&, | 137 const GrGeometryProcessor* CreateForDeviceSpace(const Color&, |
139 const Coverage&, | 138 const Coverage&, |
140 const LocalCoords&, | 139 const LocalCoords&, |
141 const SkMatrix& viewM
atrix); | 140 const SkMatrix& viewMatrix); |
142 | 141 |
143 // TODO deprecate this | 142 // TODO deprecate this |
144 static const GrGeometryProcessor* Create(uint32_t gpTypeFlags, | 143 const GrGeometryProcessor* Create(uint32_t gpTypeFlags, |
145 GrColor, | 144 GrColor, |
146 bool localCoordsWillBeRead, | 145 bool localCoordsWillBeRead, |
147 bool coverageWillBeIgnored, | 146 bool coverageWillBeIgnored, |
148 const SkMatrix& viewMatrix = SkMatr
ix::I(), | 147 const SkMatrix& viewMatrix = SkMatrix::I()
, |
149 const SkMatrix& localMatrix = SkMat
rix::I(), | 148 const SkMatrix& localMatrix = SkMatrix::I(
), |
150 uint8_t coverage = 0xff); | 149 uint8_t coverage = 0xff); |
151 | 150 |
152 static size_t DefaultVertexStride() { return sizeof(PositionAttr); } | 151 inline size_t DefaultVertexStride() { return sizeof(PositionAttr); } |
153 }; | 152 }; |
154 | 153 |
155 #endif | 154 #endif |
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