| OLD | NEW |
| 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 GrPorterDuffXferProcessor_DEFINED | 8 #ifndef GrPorterDuffXferProcessor_DEFINED |
| 9 #define GrPorterDuffXferProcessor_DEFINED | 9 #define GrPorterDuffXferProcessor_DEFINED |
| 10 | 10 |
| 11 #include "GrTypes.h" | 11 #include "GrTypes.h" |
| 12 #include "GrXferProcessor.h" | 12 #include "GrXferProcessor.h" |
| 13 #include "SkXfermode.h" | 13 #include "SkXfermode.h" |
| 14 | 14 |
| 15 class GrDrawTargetCaps; | |
| 16 class GrProcOptInfo; | 15 class GrProcOptInfo; |
| 17 | 16 |
| 18 class GrPorterDuffXferProcessor : public GrXferProcessor { | |
| 19 public: | |
| 20 static GrXferProcessor* Create(GrBlendCoeff srcBlend, GrBlendCoeff dstBlend, | |
| 21 GrColor constant, const GrDeviceCoordTexture*
dstCopy, | |
| 22 bool willReadDstColor) { | |
| 23 return SkNEW_ARGS(GrPorterDuffXferProcessor, (srcBlend, dstBlend, consta
nt, dstCopy, | |
| 24 willReadDstColor)); | |
| 25 } | |
| 26 | |
| 27 ~GrPorterDuffXferProcessor() SK_OVERRIDE; | |
| 28 | |
| 29 const char* name() const SK_OVERRIDE { return "Porter Duff"; } | |
| 30 | |
| 31 GrGLXferProcessor* createGLInstance() const SK_OVERRIDE; | |
| 32 | |
| 33 bool hasSecondaryOutput() const SK_OVERRIDE; | |
| 34 | |
| 35 /////////////////////////////////////////////////////////////////////////// | |
| 36 /// @name Stage Output Types | |
| 37 //// | |
| 38 | |
| 39 enum PrimaryOutputType { | |
| 40 kNone_PrimaryOutputType, | |
| 41 kColor_PrimaryOutputType, | |
| 42 kCoverage_PrimaryOutputType, | |
| 43 // Modulate color and coverage, write result as the color output. | |
| 44 kModulate_PrimaryOutputType, | |
| 45 }; | |
| 46 | |
| 47 enum SecondaryOutputType { | |
| 48 // There is no secondary output | |
| 49 kNone_SecondaryOutputType, | |
| 50 // Writes coverage as the secondary output. Only set if dual source blen
ding is supported | |
| 51 // and primary output is kModulate. | |
| 52 kCoverage_SecondaryOutputType, | |
| 53 // Writes coverage * (1 - colorA) as the secondary output. Only set if d
ual source blending | |
| 54 // is supported and primary output is kModulate. | |
| 55 kCoverageISA_SecondaryOutputType, | |
| 56 // Writes coverage * (1 - colorRGBA) as the secondary output. Only set i
f dual source | |
| 57 // blending is supported and primary output is kModulate. | |
| 58 kCoverageISC_SecondaryOutputType, | |
| 59 | |
| 60 kSecondaryOutputTypeCnt, | |
| 61 }; | |
| 62 | |
| 63 PrimaryOutputType primaryOutputType() const { return fPrimaryOutputType; } | |
| 64 SecondaryOutputType secondaryOutputType() const { return fSecondaryOutputTyp
e; } | |
| 65 | |
| 66 GrXferProcessor::OptFlags getOptimizations(const GrProcOptInfo& colorPOI, | |
| 67 const GrProcOptInfo& coveragePOI, | |
| 68 bool doesStencilWrite, | |
| 69 GrColor* overrideColor, | |
| 70 const GrDrawTargetCaps& caps) SK_
OVERRIDE; | |
| 71 | |
| 72 void getBlendInfo(GrXferProcessor::BlendInfo* blendInfo) const SK_OVERRIDE { | |
| 73 blendInfo->fSrcBlend = fSrcBlend; | |
| 74 blendInfo->fDstBlend = fDstBlend; | |
| 75 blendInfo->fBlendConstant = fBlendConstant; | |
| 76 } | |
| 77 | |
| 78 private: | |
| 79 GrPorterDuffXferProcessor(GrBlendCoeff srcBlend, GrBlendCoeff dstBlend, GrCo
lor constant, | |
| 80 const GrDeviceCoordTexture* dstCopy, bool willRead
DstColor); | |
| 81 | |
| 82 void onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) con
st SK_OVERRIDE; | |
| 83 | |
| 84 bool onIsEqual(const GrXferProcessor& xpBase) const SK_OVERRIDE { | |
| 85 const GrPorterDuffXferProcessor& xp = xpBase.cast<GrPorterDuffXferProces
sor>(); | |
| 86 if (fSrcBlend != xp.fSrcBlend || | |
| 87 fDstBlend != xp.fDstBlend || | |
| 88 fBlendConstant != xp.fBlendConstant || | |
| 89 fPrimaryOutputType != xp.fPrimaryOutputType || | |
| 90 fSecondaryOutputType != xp.fSecondaryOutputType) { | |
| 91 return false; | |
| 92 } | |
| 93 return true; | |
| 94 } | |
| 95 | |
| 96 GrXferProcessor::OptFlags internalGetOptimizations(const GrProcOptInfo& colo
rPOI, | |
| 97 const GrProcOptInfo& cove
ragePOI, | |
| 98 bool doesStencilWrite); | |
| 99 | |
| 100 void calcOutputTypes(GrXferProcessor::OptFlags blendOpts, const GrDrawTarget
Caps& caps, | |
| 101 bool hasSolidCoverage); | |
| 102 | |
| 103 GrBlendCoeff fSrcBlend; | |
| 104 GrBlendCoeff fDstBlend; | |
| 105 GrColor fBlendConstant; | |
| 106 PrimaryOutputType fPrimaryOutputType; | |
| 107 SecondaryOutputType fSecondaryOutputType; | |
| 108 | |
| 109 typedef GrXferProcessor INHERITED; | |
| 110 }; | |
| 111 | |
| 112 /////////////////////////////////////////////////////////////////////////////// | |
| 113 | |
| 114 class GrPorterDuffXPFactory : public GrXPFactory { | 17 class GrPorterDuffXPFactory : public GrXPFactory { |
| 115 public: | 18 public: |
| 116 static GrXPFactory* Create(SkXfermode::Mode mode); | 19 static GrXPFactory* Create(SkXfermode::Mode mode); |
| 117 | 20 |
| 118 static GrXPFactory* Create(SkXfermode::Coeff src, SkXfermode::Coeff dst) { | 21 static GrXPFactory* Create(SkXfermode::Coeff src, SkXfermode::Coeff dst) { |
| 119 return SkNEW_ARGS(GrPorterDuffXPFactory, ((GrBlendCoeff)(src), (GrBlendC
oeff)(dst))); | 22 return SkNEW_ARGS(GrPorterDuffXPFactory, ((GrBlendCoeff)(src), (GrBlendC
oeff)(dst))); |
| 120 } | 23 } |
| 121 | 24 |
| 122 static GrXPFactory* Create(GrBlendCoeff src, GrBlendCoeff dst) { | 25 static GrXPFactory* Create(GrBlendCoeff src, GrBlendCoeff dst) { |
| 123 return SkNEW_ARGS(GrPorterDuffXPFactory, (src, dst)); | 26 return SkNEW_ARGS(GrPorterDuffXPFactory, (src, dst)); |
| (...skipping 25 matching lines...) Expand all Loading... |
| 149 | 52 |
| 150 GR_DECLARE_XP_FACTORY_TEST; | 53 GR_DECLARE_XP_FACTORY_TEST; |
| 151 | 54 |
| 152 GrBlendCoeff fSrcCoeff; | 55 GrBlendCoeff fSrcCoeff; |
| 153 GrBlendCoeff fDstCoeff; | 56 GrBlendCoeff fDstCoeff; |
| 154 | 57 |
| 155 typedef GrXPFactory INHERITED; | 58 typedef GrXPFactory INHERITED; |
| 156 }; | 59 }; |
| 157 | 60 |
| 158 #endif | 61 #endif |
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