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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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62 kMatrixTypeKeyMask = (1 << kMatrixTypeKeyBits) - 1, | 62 kMatrixTypeKeyMask = (1 << kMatrixTypeKeyBits) - 1, |
63 | 63 |
64 kPrecisionBits = 2, | 64 kPrecisionBits = 2, |
65 kPrecisionShift = kMatrixTypeKeyBits, | 65 kPrecisionShift = kMatrixTypeKeyBits, |
66 | 66 |
67 kPositionCoords_Flag = (1 << (kPrecisionShift + kPrecisionBits)), | 67 kPositionCoords_Flag = (1 << (kPrecisionShift + kPrecisionBits)), |
68 | 68 |
69 kTransformKeyBits = kMatrixTypeKeyBits + kPrecisionBits + 1, | 69 kTransformKeyBits = kMatrixTypeKeyBits + kPrecisionBits + 1, |
70 }; | 70 }; |
71 | 71 |
72 GR_STATIC_ASSERT(GrShaderVar::kHigh_Precision < (1 << kPrecisionBits)); | 72 GR_STATIC_ASSERT(kHigh_GrSLPrecision < (1 << kPrecisionBits)); |
73 | 73 |
74 /** | 74 /** |
75 * We specialize the vertex code for each of these matrix types. | 75 * We specialize the vertex code for each of these matrix types. |
76 */ | 76 */ |
77 enum MatrixType { | 77 enum MatrixType { |
78 kNoPersp_MatrixType = 0, | 78 kNoPersp_MatrixType = 0, |
79 kGeneral_MatrixType = 1, | 79 kGeneral_MatrixType = 1, |
80 }; | 80 }; |
81 | 81 |
82 static uint32_t gen_transform_key(const GrPendingFragmentStage& stage, bool useE
xplicitLocalCoords) { | 82 static uint32_t gen_transform_key(const GrPendingFragmentStage& stage, bool useE
xplicitLocalCoords) { |
83 uint32_t totalKey = 0; | 83 uint32_t totalKey = 0; |
84 int numTransforms = stage.getProcessor()->numTransforms(); | 84 int numTransforms = stage.getProcessor()->numTransforms(); |
85 for (int t = 0; t < numTransforms; ++t) { | 85 for (int t = 0; t < numTransforms; ++t) { |
86 uint32_t key = 0; | 86 uint32_t key = 0; |
87 if (stage.isPerspectiveCoordTransform(t)) { | 87 if (stage.isPerspectiveCoordTransform(t)) { |
88 key |= kGeneral_MatrixType; | 88 key |= kGeneral_MatrixType; |
89 } else { | 89 } else { |
90 key |= kNoPersp_MatrixType; | 90 key |= kNoPersp_MatrixType; |
91 } | 91 } |
92 | 92 |
93 const GrCoordTransform& coordTransform = stage.getProcessor()->coordTran
sform(t); | 93 const GrCoordTransform& coordTransform = stage.getProcessor()->coordTran
sform(t); |
94 if (kLocal_GrCoordSet != coordTransform.sourceCoords() && useExplicitLoc
alCoords) { | 94 if (kLocal_GrCoordSet != coordTransform.sourceCoords() && useExplicitLoc
alCoords) { |
95 key |= kPositionCoords_Flag; | 95 key |= kPositionCoords_Flag; |
96 } | 96 } |
97 | 97 |
98 GR_STATIC_ASSERT(GrShaderVar::kPrecisionCount <= (1 << kPrecisionBits)); | 98 GR_STATIC_ASSERT(kGrSLPrecisionCount <= (1 << kPrecisionBits)); |
99 key |= (coordTransform.precision() << kPrecisionShift); | 99 key |= (coordTransform.precision() << kPrecisionShift); |
100 | 100 |
101 key <<= kTransformKeyBits * t; | 101 key <<= kTransformKeyBits * t; |
102 | 102 |
103 SkASSERT(0 == (totalKey & key)); // keys for each transform ought not to
overlap | 103 SkASSERT(0 == (totalKey & key)); // keys for each transform ought not to
overlap |
104 totalKey |= key; | 104 totalKey |= key; |
105 } | 105 } |
106 return totalKey; | 106 return totalKey; |
107 } | 107 } |
108 | 108 |
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261 } | 261 } |
262 | 262 |
263 header->fPrimaryOutputType = descInfo.fPrimaryOutputType; | 263 header->fPrimaryOutputType = descInfo.fPrimaryOutputType; |
264 header->fSecondaryOutputType = descInfo.fSecondaryOutputType; | 264 header->fSecondaryOutputType = descInfo.fSecondaryOutputType; |
265 | 265 |
266 header->fColorEffectCnt = optState.numColorStages(); | 266 header->fColorEffectCnt = optState.numColorStages(); |
267 header->fCoverageEffectCnt = optState.numCoverageStages(); | 267 header->fCoverageEffectCnt = optState.numCoverageStages(); |
268 desc->finalize(); | 268 desc->finalize(); |
269 return true; | 269 return true; |
270 } | 270 } |
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