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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 #include "GrProcOptInfo.h" | 8 #include "GrProcOptInfo.h" |
9 | 9 |
10 #include "GrFragmentProcessor.h" | 10 #include "GrFragmentProcessor.h" |
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41 fInOut.reset(out); | 41 fInOut.reset(out); |
42 this->internalCalc(stages, stageCount, false); | 42 this->internalCalc(stages, stageCount, false); |
43 } | 43 } |
44 | 44 |
45 void GrProcOptInfo::internalCalc(const GrFragmentStage* stages, | 45 void GrProcOptInfo::internalCalc(const GrFragmentStage* stages, |
46 int stageCount, | 46 int stageCount, |
47 bool initWillReadFragmentPosition) { | 47 bool initWillReadFragmentPosition) { |
48 fFirstEffectStageIndex = 0; | 48 fFirstEffectStageIndex = 0; |
49 fInputColorIsUsed = true; | 49 fInputColorIsUsed = true; |
50 fInputColor = fInOut.color(); | 50 fInputColor = fInOut.color(); |
51 fRemoveVertexAttrib = false; | |
52 fReadsDst = false; | 51 fReadsDst = false; |
53 fReadsFragPosition = initWillReadFragmentPosition; | 52 fReadsFragPosition = initWillReadFragmentPosition; |
54 | 53 |
55 for (int i = 0; i < stageCount; ++i) { | 54 for (int i = 0; i < stageCount; ++i) { |
56 const GrFragmentProcessor* processor = stages[i].getProcessor(); | 55 const GrFragmentProcessor* processor = stages[i].getProcessor(); |
57 fInOut.resetWillUseInputColor(); | 56 fInOut.resetWillUseInputColor(); |
58 processor->computeInvariantOutput(&fInOut); | 57 processor->computeInvariantOutput(&fInOut); |
59 SkDEBUGCODE(fInOut.validate()); | 58 SkDEBUGCODE(fInOut.validate()); |
60 if (!fInOut.willUseInputColor()) { | 59 if (!fInOut.willUseInputColor()) { |
61 fFirstEffectStageIndex = i; | 60 fFirstEffectStageIndex = i; |
62 fInputColorIsUsed = false; | 61 fInputColorIsUsed = false; |
63 // Reset these since we don't care if previous stages read these val
ues | 62 // Reset these since we don't care if previous stages read these val
ues |
64 fReadsDst = false; | 63 fReadsDst = false; |
65 fReadsFragPosition = initWillReadFragmentPosition; | 64 fReadsFragPosition = initWillReadFragmentPosition; |
66 } | 65 } |
67 if (processor->willReadDstColor()) { | 66 if (processor->willReadDstColor()) { |
68 fReadsDst = true; | 67 fReadsDst = true; |
69 } | 68 } |
70 if (processor->willReadFragmentPosition()) { | 69 if (processor->willReadFragmentPosition()) { |
71 fReadsFragPosition = true; | 70 fReadsFragPosition = true; |
72 } | 71 } |
73 if (kRGBA_GrColorComponentFlags == fInOut.validFlags()) { | 72 if (kRGBA_GrColorComponentFlags == fInOut.validFlags()) { |
74 fFirstEffectStageIndex = i + 1; | 73 fFirstEffectStageIndex = i + 1; |
75 fInputColor = fInOut.color(); | 74 fInputColor = fInOut.color(); |
76 fInputColorIsUsed = true; | 75 fInputColorIsUsed = true; |
77 fRemoveVertexAttrib = true; | |
78 // Since we are clearing all previous color stages we are in a state
where we have found | 76 // Since we are clearing all previous color stages we are in a state
where we have found |
79 // zero stages that don't multiply the inputColor. | 77 // zero stages that don't multiply the inputColor. |
80 fInOut.resetNonMulStageFound(); | 78 fInOut.resetNonMulStageFound(); |
81 // Reset these since we don't care if previous stages read these val
ues | 79 // Reset these since we don't care if previous stages read these val
ues |
82 fReadsDst = false; | 80 fReadsDst = false; |
83 fReadsFragPosition = initWillReadFragmentPosition; | 81 fReadsFragPosition = initWillReadFragmentPosition; |
84 } | 82 } |
85 } | 83 } |
86 } | 84 } |
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