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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 GrProcOptInfo_DEFINED | 8 #ifndef GrProcOptInfo_DEFINED |
9 #define GrProcOptInfo_DEFINED | 9 #define GrProcOptInfo_DEFINED |
10 | 10 |
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21 * optimizations related to eliminating stages and vertex attributes that aren't
necessary for a | 21 * optimizations related to eliminating stages and vertex attributes that aren't
necessary for a |
22 * draw. | 22 * draw. |
23 */ | 23 */ |
24 class GrProcOptInfo { | 24 class GrProcOptInfo { |
25 public: | 25 public: |
26 GrProcOptInfo() | 26 GrProcOptInfo() |
27 : fInOut(0, static_cast<GrColorComponentFlags>(0), false) | 27 : fInOut(0, static_cast<GrColorComponentFlags>(0), false) |
28 , fFirstEffectStageIndex(0) | 28 , fFirstEffectStageIndex(0) |
29 , fInputColorIsUsed(true) | 29 , fInputColorIsUsed(true) |
30 , fInputColor(0) | 30 , fInputColor(0) |
31 , fReadsDst(false) | |
32 , fReadsFragPosition(false) {} | 31 , fReadsFragPosition(false) {} |
33 | 32 |
34 void calcWithInitialValues(const GrFragmentStage*, int stageCount, GrColor s
tartColor, | 33 void calcWithInitialValues(const GrFragmentStage*, int stageCount, GrColor s
tartColor, |
35 GrColorComponentFlags flags, bool areCoverageStag
es); | 34 GrColorComponentFlags flags, bool areCoverageStag
es); |
36 | 35 |
37 void calcColorWithPrimProc(const GrPrimitiveProcessor*, const GrFragmentStag
e*, int stagecount); | 36 void calcColorWithPrimProc(const GrPrimitiveProcessor*, const GrFragmentStag
e*, int stagecount); |
38 void calcCoverageWithPrimProc(const GrPrimitiveProcessor*, const GrFragmentS
tage*, | 37 void calcCoverageWithPrimProc(const GrPrimitiveProcessor*, const GrFragmentS
tage*, |
39 int stagecount); | 38 int stagecount); |
40 | 39 |
41 bool isSolidWhite() const { return fInOut.isSolidWhite(); } | 40 bool isSolidWhite() const { return fInOut.isSolidWhite(); } |
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68 */ | 67 */ |
69 bool inputColorIsUsed() const { return fInputColorIsUsed; } | 68 bool inputColorIsUsed() const { return fInputColorIsUsed; } |
70 | 69 |
71 /** | 70 /** |
72 * If input color is used and per-vertex colors are not used, this is the in
put color to the | 71 * If input color is used and per-vertex colors are not used, this is the in
put color to the |
73 * first effective stage. | 72 * first effective stage. |
74 */ | 73 */ |
75 GrColor inputColorToEffectiveStage() const { return fInputColor; } | 74 GrColor inputColorToEffectiveStage() const { return fInputColor; } |
76 | 75 |
77 /** | 76 /** |
78 * Returns true if any of the stages preserved by GrProcOptInfo read the dst
color. | |
79 */ | |
80 bool readsDst() const { return fReadsDst; } | |
81 | |
82 /** | |
83 * Returns true if any of the stages preserved by GrProcOptInfo read the fra
g position. | 77 * Returns true if any of the stages preserved by GrProcOptInfo read the fra
g position. |
84 */ | 78 */ |
85 bool readsFragPosition() const { return fReadsFragPosition; } | 79 bool readsFragPosition() const { return fReadsFragPosition; } |
86 | 80 |
87 private: | 81 private: |
88 void internalCalc(const GrFragmentStage*, int stagecount, bool initWillReadF
ragPosition); | 82 void internalCalc(const GrFragmentStage*, int stagecount, bool initWillReadF
ragPosition); |
89 | 83 |
90 GrInvariantOutput fInOut; | 84 GrInvariantOutput fInOut; |
91 int fFirstEffectStageIndex; | 85 int fFirstEffectStageIndex; |
92 bool fInputColorIsUsed; | 86 bool fInputColorIsUsed; |
93 GrColor fInputColor; | 87 GrColor fInputColor; |
94 bool fReadsDst; | |
95 bool fReadsFragPosition; | 88 bool fReadsFragPosition; |
96 }; | 89 }; |
97 | 90 |
98 #endif | 91 #endif |
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