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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 #include "GrGLProgramDesc.h" | 7 #include "GrGLProgramDesc.h" |
8 | 8 |
9 #include "GrGLProcessor.h" | 9 #include "GrGLProcessor.h" |
10 #include "GrProcessor.h" | 10 #include "GrProcessor.h" |
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82 | 82 |
83 uint32_t* key = b->add32n(2); | 83 uint32_t* key = b->add32n(2); |
84 key[0] = (textureKey << 16 | transformKey); | 84 key[0] = (textureKey << 16 | transformKey); |
85 key[1] = (classID << 16 | SkToU16(processorKeySize)); | 85 key[1] = (classID << 16 | SkToU16(processorKeySize)); |
86 return true; | 86 return true; |
87 } | 87 } |
88 | 88 |
89 bool GrGLProgramDescBuilder::Build(GrProgramDesc* desc, | 89 bool GrGLProgramDescBuilder::Build(GrProgramDesc* desc, |
90 const GrPrimitiveProcessor& primProc, | 90 const GrPrimitiveProcessor& primProc, |
91 const GrPipeline& pipeline, | 91 const GrPipeline& pipeline, |
92 const GrProgramDesc::DescInfo& descInfo, | |
93 const GrGLGpu* gpu, | 92 const GrGLGpu* gpu, |
94 const GrBatchTracker& batchTracker) { | 93 const GrBatchTracker& batchTracker) { |
95 // The descriptor is used as a cache key. Thus when a field of the | 94 // The descriptor is used as a cache key. Thus when a field of the |
96 // descriptor will not affect program generation (because of the attribute | 95 // descriptor will not affect program generation (because of the attribute |
97 // bindings in use or other descriptor field settings) it should be set | 96 // bindings in use or other descriptor field settings) it should be set |
98 // to a canonical value to avoid duplicate programs with different keys. | 97 // to a canonical value to avoid duplicate programs with different keys. |
99 | 98 |
100 GR_STATIC_ASSERT(0 == kProcessorKeysOffset % sizeof(uint32_t)); | 99 GR_STATIC_ASSERT(0 == kProcessorKeysOffset % sizeof(uint32_t)); |
101 // Make room for everything up to the effect keys. | 100 // Make room for everything up to the effect keys. |
102 desc->fKey.reset(); | 101 desc->fKey.reset(); |
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128 } | 127 } |
129 | 128 |
130 // --------DO NOT MOVE HEADER ABOVE THIS LINE-------------------------------
------------------- | 129 // --------DO NOT MOVE HEADER ABOVE THIS LINE-------------------------------
------------------- |
131 // Because header is a pointer into the dynamic array, we can't push any new
data into the key | 130 // Because header is a pointer into the dynamic array, we can't push any new
data into the key |
132 // below here. | 131 // below here. |
133 KeyHeader* header = desc->atOffset<KeyHeader, kHeaderOffset>(); | 132 KeyHeader* header = desc->atOffset<KeyHeader, kHeaderOffset>(); |
134 | 133 |
135 // make sure any padding in the header is zeroed. | 134 // make sure any padding in the header is zeroed. |
136 memset(header, 0, kHeaderSize); | 135 memset(header, 0, kHeaderSize); |
137 | 136 |
138 if (descInfo.fReadsDst) { | 137 if (pipeline.readsFragPosition()) { |
139 const GrDeviceCoordTexture* dstCopy = pipeline.getDstCopy(); | |
140 SkASSERT(dstCopy || gpu->caps()->dstReadInShaderSupport()); | |
141 const GrTexture* dstCopyTexture = NULL; | |
142 if (dstCopy) { | |
143 dstCopyTexture = dstCopy->texture(); | |
144 } | |
145 header->fDstReadKey = GrGLFragmentShaderBuilder::KeyForDstRead(dstCopyTe
xture, | |
146 gpu->glCa
ps()); | |
147 SkASSERT(0 != header->fDstReadKey); | |
148 } else { | |
149 header->fDstReadKey = 0; | |
150 } | |
151 | |
152 if (descInfo.fReadsFragPosition) { | |
153 header->fFragPosKey = | 138 header->fFragPosKey = |
154 GrGLFragmentShaderBuilder::KeyForFragmentPosition(pipeline.getRe
nderTarget(), | 139 GrGLFragmentShaderBuilder::KeyForFragmentPosition(pipeline.getRe
nderTarget(), |
155 gpu->glCaps())
; | 140 gpu->glCaps())
; |
156 } else { | 141 } else { |
157 header->fFragPosKey = 0; | 142 header->fFragPosKey = 0; |
158 } | 143 } |
159 | 144 |
160 header->fColorEffectCnt = pipeline.numColorStages(); | 145 header->fColorEffectCnt = pipeline.numColorStages(); |
161 header->fCoverageEffectCnt = pipeline.numCoverageStages(); | 146 header->fCoverageEffectCnt = pipeline.numCoverageStages(); |
162 desc->finalize(); | 147 desc->finalize(); |
163 return true; | 148 return true; |
164 } | 149 } |
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