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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 GrDisableColorXP_DEFINED | 8 #ifndef GrDisableColorXP_DEFINED |
9 #define GrDisableColorXP_DEFINED | 9 #define GrDisableColorXP_DEFINED |
10 | 10 |
11 #include "GrTypes.h" | 11 #include "GrTypes.h" |
12 #include "GrXferProcessor.h" | 12 #include "GrXferProcessor.h" |
13 | 13 |
14 class GrProcOptInfo; | 14 class GrProcOptInfo; |
15 | 15 |
16 /** | 16 /** |
17 * This xfer processor disables color writing. Thus color and coverage and ignor
ed and no blending | 17 * This xfer processor disables color writing. Thus color and coverage and ignor
ed and no blending |
18 * occurs. This XP is usful for things like stenciling. | 18 * occurs. This XP is usful for things like stenciling. |
19 */ | 19 */ |
20 class GrDisableColorXP : public GrXferProcessor { | 20 class GrDisableColorXP : public GrXferProcessor { |
21 public: | 21 public: |
22 static GrXferProcessor* Create() { | 22 static GrXferProcessor* Create() { |
23 return SkNEW(GrDisableColorXP); | 23 return SkNEW(GrDisableColorXP); |
24 } | 24 } |
25 | 25 |
26 ~GrDisableColorXP() SK_OVERRIDE {}; | 26 ~GrDisableColorXP() SK_OVERRIDE {}; |
27 | 27 |
28 const char* name() const SK_OVERRIDE { return "Disable Color"; } | 28 const char* name() const SK_OVERRIDE { return "Disable Color"; } |
29 | 29 |
30 void getGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) const
SK_OVERRIDE; | |
31 | |
32 GrGLXferProcessor* createGLInstance() const SK_OVERRIDE; | 30 GrGLXferProcessor* createGLInstance() const SK_OVERRIDE; |
33 | 31 |
34 bool hasSecondaryOutput() const SK_OVERRIDE { return false; } | 32 bool hasSecondaryOutput() const SK_OVERRIDE { return false; } |
35 | 33 |
36 GrXferProcessor::OptFlags getOptimizations(const GrProcOptInfo& colorPOI, | 34 GrXferProcessor::OptFlags getOptimizations(const GrProcOptInfo& colorPOI, |
37 const GrProcOptInfo& coveragePOI, | 35 const GrProcOptInfo& coveragePOI, |
38 bool doesStencilWrite, | 36 bool doesStencilWrite, |
39 GrColor* color, | 37 GrColor* color, |
40 const GrDrawTargetCaps& caps) SK_
OVERRIDE { | 38 const GrDrawTargetCaps& caps) SK_
OVERRIDE { |
41 return GrXferProcessor::kIgnoreColor_OptFlag | GrXferProcessor::kIgnoreC
overage_OptFlag; | 39 return GrXferProcessor::kIgnoreColor_OptFlag | GrXferProcessor::kIgnoreC
overage_OptFlag; |
42 } | 40 } |
43 | 41 |
44 void getBlendInfo(GrXferProcessor::BlendInfo* blendInfo) const SK_OVERRIDE; | 42 void getBlendInfo(GrXferProcessor::BlendInfo* blendInfo) const SK_OVERRIDE; |
45 | 43 |
46 private: | 44 private: |
47 GrDisableColorXP(); | 45 GrDisableColorXP(); |
48 | 46 |
| 47 void onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) con
st SK_OVERRIDE; |
| 48 |
49 bool onIsEqual(const GrXferProcessor& xpBase) const SK_OVERRIDE { | 49 bool onIsEqual(const GrXferProcessor& xpBase) const SK_OVERRIDE { |
50 return true; | 50 return true; |
51 } | 51 } |
52 | 52 |
53 typedef GrXferProcessor INHERITED; | 53 typedef GrXferProcessor INHERITED; |
54 }; | 54 }; |
55 | 55 |
56 /////////////////////////////////////////////////////////////////////////////// | 56 /////////////////////////////////////////////////////////////////////////////// |
57 | 57 |
58 class GrDisableColorXPFactory : public GrXPFactory { | 58 class GrDisableColorXPFactory : public GrXPFactory { |
59 public: | 59 public: |
60 static GrXPFactory* Create() { | 60 static GrXPFactory* Create() { |
61 return SkNEW(GrDisableColorXPFactory); | 61 return SkNEW(GrDisableColorXPFactory); |
62 } | 62 } |
63 | 63 |
64 GrXferProcessor* createXferProcessor(const GrProcOptInfo& colorPOI, | |
65 const GrProcOptInfo& coveragePOI) const
SK_OVERRIDE; | |
66 | |
67 bool supportsRGBCoverage(GrColor knownColor, uint32_t knownColorFlags) const
SK_OVERRIDE { | 64 bool supportsRGBCoverage(GrColor knownColor, uint32_t knownColorFlags) const
SK_OVERRIDE { |
68 return true; | 65 return true; |
69 } | 66 } |
70 | 67 |
71 bool canApplyCoverage(const GrProcOptInfo& colorPOI, | 68 bool canApplyCoverage(const GrProcOptInfo& colorPOI, |
72 const GrProcOptInfo& coveragePOI) const SK_OVERRIDE { | 69 const GrProcOptInfo& coveragePOI) const SK_OVERRIDE { |
73 return true; | 70 return true; |
74 } | 71 } |
75 | 72 |
76 bool canTweakAlphaForCoverage() const SK_OVERRIDE { return true; } | 73 bool canTweakAlphaForCoverage() const SK_OVERRIDE { return true; } |
77 | 74 |
78 void getInvariantOutput(const GrProcOptInfo& colorPOI, const GrProcOptInfo&
coveragePOI, | 75 void getInvariantOutput(const GrProcOptInfo& colorPOI, const GrProcOptInfo&
coveragePOI, |
79 GrXPFactory::InvariantOutput* output) const SK_OVERR
IDE { | 76 GrXPFactory::InvariantOutput* output) const SK_OVERR
IDE { |
80 output->fBlendedColorFlags = 0; | 77 output->fBlendedColorFlags = 0; |
81 output->fWillBlendWithDst = 0; | 78 output->fWillBlendWithDst = 0; |
82 } | 79 } |
83 | 80 |
84 bool willReadDst() const SK_OVERRIDE { return false; } | |
85 | |
86 private: | 81 private: |
87 GrDisableColorXPFactory(); | 82 GrDisableColorXPFactory(); |
88 | 83 |
| 84 GrXferProcessor* onCreateXferProcessor(const GrProcOptInfo& colorPOI, |
| 85 const GrProcOptInfo& coveragePOI, |
| 86 const GrDeviceCoordTexture* dstCopy, |
| 87 int32_t dstReadKey) const SK_OVERRIDE
; |
| 88 |
| 89 bool willReadDst() const SK_OVERRIDE { return false; } |
| 90 |
89 bool onIsEqual(const GrXPFactory& xpfBase) const SK_OVERRIDE { | 91 bool onIsEqual(const GrXPFactory& xpfBase) const SK_OVERRIDE { |
90 return true; | 92 return true; |
91 } | 93 } |
92 | 94 |
93 GR_DECLARE_XP_FACTORY_TEST; | 95 GR_DECLARE_XP_FACTORY_TEST; |
94 | 96 |
95 typedef GrXPFactory INHERITED; | 97 typedef GrXPFactory INHERITED; |
96 }; | 98 }; |
97 | 99 |
98 #endif | 100 #endif |
99 | 101 |
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