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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 GrCustomXfermodePriv_DEFINED | 8 #ifndef GrCustomXfermodePriv_DEFINED |
9 #define GrCustomXfermodePriv_DEFINED | 9 #define GrCustomXfermodePriv_DEFINED |
10 | 10 |
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49 GrCoordTransform fBackgroundTransform; | 49 GrCoordTransform fBackgroundTransform; |
50 GrTextureAccess fBackgroundAccess; | 50 GrTextureAccess fBackgroundAccess; |
51 | 51 |
52 typedef GrFragmentProcessor INHERITED; | 52 typedef GrFragmentProcessor INHERITED; |
53 }; | 53 }; |
54 | 54 |
55 /////////////////////////////////////////////////////////////////////////////// | 55 /////////////////////////////////////////////////////////////////////////////// |
56 // Xfer Processor | 56 // Xfer Processor |
57 /////////////////////////////////////////////////////////////////////////////// | 57 /////////////////////////////////////////////////////////////////////////////// |
58 | 58 |
59 class GrCustomXP : public GrXferProcessor { | |
60 public: | |
61 static GrXferProcessor* Create(SkXfermode::Mode mode, const GrDeviceCoordTex
ture* dstCopy, | |
62 bool willReadDstColor) { | |
63 if (!GrCustomXfermode::IsSupportedMode(mode)) { | |
64 return NULL; | |
65 } else { | |
66 return SkNEW_ARGS(GrCustomXP, (mode, dstCopy, willReadDstColor)); | |
67 } | |
68 } | |
69 | |
70 ~GrCustomXP() SK_OVERRIDE {}; | |
71 | |
72 const char* name() const SK_OVERRIDE { return "Custom Xfermode"; } | |
73 | |
74 GrGLXferProcessor* createGLInstance() const SK_OVERRIDE; | |
75 | |
76 bool hasSecondaryOutput() const SK_OVERRIDE { return false; } | |
77 | |
78 GrXferProcessor::OptFlags getOptimizations(const GrProcOptInfo& colorPOI, | |
79 const GrProcOptInfo& coveragePOI, | |
80 bool doesStencilWrite, | |
81 GrColor* overrideColor, | |
82 const GrDrawTargetCaps& caps) SK_
OVERRIDE; | |
83 | |
84 void getBlendInfo(GrXferProcessor::BlendInfo* blendInfo) const SK_OVERRIDE { | |
85 blendInfo->fSrcBlend = kOne_GrBlendCoeff; | |
86 blendInfo->fDstBlend = kZero_GrBlendCoeff; | |
87 blendInfo->fBlendConstant = 0; | |
88 } | |
89 | |
90 SkXfermode::Mode mode() const { return fMode; } | |
91 | |
92 private: | |
93 GrCustomXP(SkXfermode::Mode mode, const GrDeviceCoordTexture* dstCopy, bool
willReadDstColor); | |
94 | |
95 void onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) con
st SK_OVERRIDE; | |
96 | |
97 bool onIsEqual(const GrXferProcessor& xpBase) const SK_OVERRIDE; | |
98 | |
99 SkXfermode::Mode fMode; | |
100 | |
101 typedef GrXferProcessor INHERITED; | |
102 }; | |
103 | |
104 /////////////////////////////////////////////////////////////////////////////// | |
105 | |
106 class GrCustomXPFactory : public GrXPFactory { | 59 class GrCustomXPFactory : public GrXPFactory { |
107 public: | 60 public: |
108 GrCustomXPFactory(SkXfermode::Mode mode); | 61 GrCustomXPFactory(SkXfermode::Mode mode); |
109 | 62 |
110 bool supportsRGBCoverage(GrColor knownColor, uint32_t knownColorFlags) const
SK_OVERRIDE { | 63 bool supportsRGBCoverage(GrColor knownColor, uint32_t knownColorFlags) const
SK_OVERRIDE { |
111 return true; | 64 return true; |
112 } | 65 } |
113 | 66 |
114 bool canApplyCoverage(const GrProcOptInfo& colorPOI, | 67 bool canApplyCoverage(const GrProcOptInfo& colorPOI, |
115 const GrProcOptInfo& coveragePOI) const SK_OVERRIDE { | 68 const GrProcOptInfo& coveragePOI) const SK_OVERRIDE { |
116 return true; | 69 return true; |
117 } | 70 } |
118 | 71 |
119 bool canTweakAlphaForCoverage() const SK_OVERRIDE { | 72 bool canTweakAlphaForCoverage() const SK_OVERRIDE { |
120 return false; | 73 return false; |
121 } | 74 } |
122 | 75 |
123 void getInvariantOutput(const GrProcOptInfo& colorPOI, const GrProcOptInfo&
coveragePOI, | 76 void getInvariantOutput(const GrProcOptInfo& colorPOI, const GrProcOptInfo&
coveragePOI, |
124 GrXPFactory::InvariantOutput*) const SK_OVERRIDE; | 77 GrXPFactory::InvariantOutput*) const SK_OVERRIDE; |
125 | 78 |
126 private: | 79 private: |
127 GrXferProcessor* onCreateXferProcessor(const GrProcOptInfo& colorPOI, | 80 GrXferProcessor* onCreateXferProcessor(const GrProcOptInfo& colorPOI, |
128 const GrProcOptInfo& coveragePOI, | 81 const GrProcOptInfo& coveragePOI, |
129 const GrDeviceCoordTexture* dstCopy)
const SK_OVERRIDE { | 82 const GrDeviceCoordTexture* dstCopy)
const SK_OVERRIDE; |
130 return GrCustomXP::Create(fMode, dstCopy, this->willReadDstColor()); | |
131 } | |
132 | 83 |
133 bool willReadDstColor() const SK_OVERRIDE { return true; } | 84 bool willReadDstColor() const SK_OVERRIDE { return true; } |
134 | 85 |
135 bool onIsEqual(const GrXPFactory& xpfBase) const SK_OVERRIDE { | 86 bool onIsEqual(const GrXPFactory& xpfBase) const SK_OVERRIDE { |
136 const GrCustomXPFactory& xpf = xpfBase.cast<GrCustomXPFactory>(); | 87 const GrCustomXPFactory& xpf = xpfBase.cast<GrCustomXPFactory>(); |
137 return fMode == xpf.fMode; | 88 return fMode == xpf.fMode; |
138 } | 89 } |
139 | 90 |
140 GR_DECLARE_XP_FACTORY_TEST; | 91 GR_DECLARE_XP_FACTORY_TEST; |
141 | 92 |
142 SkXfermode::Mode fMode; | 93 SkXfermode::Mode fMode; |
143 | 94 |
144 typedef GrXPFactory INHERITED; | 95 typedef GrXPFactory INHERITED; |
145 }; | 96 }; |
146 #endif | 97 #endif |
147 | 98 |
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