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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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45 * that indicates the source of the input coords. | 45 * that indicates the source of the input coords. |
46 */ | 46 */ |
47 enum { | 47 enum { |
48 kMatrixTypeKeyBits = 1, | 48 kMatrixTypeKeyBits = 1, |
49 kMatrixTypeKeyMask = (1 << kMatrixTypeKeyBits) - 1, | 49 kMatrixTypeKeyMask = (1 << kMatrixTypeKeyBits) - 1, |
50 | 50 |
51 kPrecisionBits = 2, | 51 kPrecisionBits = 2, |
52 kPrecisionShift = kMatrixTypeKeyBits, | 52 kPrecisionShift = kMatrixTypeKeyBits, |
53 | 53 |
54 kPositionCoords_Flag = (1 << (kPrecisionShift + kPrecisionBits)), | 54 kPositionCoords_Flag = (1 << (kPrecisionShift + kPrecisionBits)), |
| 55 kDeviceCoords_Flag = kPositionCoords_Flag + kPositionCoords_Flag, |
55 | 56 |
56 kTransformKeyBits = kMatrixTypeKeyBits + kPrecisionBits + 1, | 57 kTransformKeyBits = kMatrixTypeKeyBits + kPrecisionBits + 2, |
57 }; | 58 }; |
58 | 59 |
59 GR_STATIC_ASSERT(kHigh_GrSLPrecision < (1 << kPrecisionBits)); | 60 GR_STATIC_ASSERT(kHigh_GrSLPrecision < (1 << kPrecisionBits)); |
60 | 61 |
61 /** | 62 /** |
62 * We specialize the vertex code for each of these matrix types. | 63 * We specialize the vertex code for each of these matrix types. |
63 */ | 64 */ |
64 enum MatrixType { | 65 enum MatrixType { |
65 kNoPersp_MatrixType = 0, | 66 kNoPersp_MatrixType = 0, |
66 kGeneral_MatrixType = 1, | 67 kGeneral_MatrixType = 1, |
67 }; | 68 }; |
68 | 69 |
69 static uint32_t gen_transform_key(const GrPendingFragmentStage& stage, bool useE
xplicitLocalCoords) { | 70 static uint32_t gen_transform_key(const GrPendingFragmentStage& stage, bool useE
xplicitLocalCoords) { |
70 uint32_t totalKey = 0; | 71 uint32_t totalKey = 0; |
71 int numTransforms = stage.getProcessor()->numTransforms(); | 72 int numTransforms = stage.getProcessor()->numTransforms(); |
72 for (int t = 0; t < numTransforms; ++t) { | 73 for (int t = 0; t < numTransforms; ++t) { |
73 uint32_t key = 0; | 74 uint32_t key = 0; |
74 if (stage.isPerspectiveCoordTransform(t)) { | 75 if (stage.isPerspectiveCoordTransform(t)) { |
75 key |= kGeneral_MatrixType; | 76 key |= kGeneral_MatrixType; |
76 } else { | 77 } else { |
77 key |= kNoPersp_MatrixType; | 78 key |= kNoPersp_MatrixType; |
78 } | 79 } |
79 | 80 |
80 const GrCoordTransform& coordTransform = stage.getProcessor()->coordTran
sform(t); | 81 const GrCoordTransform& coordTransform = stage.getProcessor()->coordTran
sform(t); |
81 if (kLocal_GrCoordSet != coordTransform.sourceCoords() && useExplicitLoc
alCoords) { | 82 if (kLocal_GrCoordSet == coordTransform.sourceCoords() && !useExplicitLo
calCoords) { |
82 key |= kPositionCoords_Flag; | 83 key |= kPositionCoords_Flag; |
| 84 } else if (kDevice_GrCoordSet == coordTransform.sourceCoords()) { |
| 85 key |= kDeviceCoords_Flag; |
83 } | 86 } |
84 | 87 |
85 GR_STATIC_ASSERT(kGrSLPrecisionCount <= (1 << kPrecisionBits)); | 88 GR_STATIC_ASSERT(kGrSLPrecisionCount <= (1 << kPrecisionBits)); |
86 key |= (coordTransform.precision() << kPrecisionShift); | 89 key |= (coordTransform.precision() << kPrecisionShift); |
87 | 90 |
88 key <<= kTransformKeyBits * t; | 91 key <<= kTransformKeyBits * t; |
89 | 92 |
90 SkASSERT(0 == (totalKey & key)); // keys for each transform ought not to
overlap | 93 SkASSERT(0 == (totalKey & key)); // keys for each transform ought not to
overlap |
91 totalKey |= key; | 94 totalKey |= key; |
92 } | 95 } |
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219 gpu->glCaps())
; | 222 gpu->glCaps())
; |
220 } else { | 223 } else { |
221 header->fFragPosKey = 0; | 224 header->fFragPosKey = 0; |
222 } | 225 } |
223 | 226 |
224 header->fColorEffectCnt = optState.numColorStages(); | 227 header->fColorEffectCnt = optState.numColorStages(); |
225 header->fCoverageEffectCnt = optState.numCoverageStages(); | 228 header->fCoverageEffectCnt = optState.numCoverageStages(); |
226 desc->finalize(); | 229 desc->finalize(); |
227 return true; | 230 return true; |
228 } | 231 } |
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