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Side by Side Diff: include/gpu/effects/GrPorterDuffXferProcessor.h

Issue 1124373002: Implement Porter Duff XP with a blend table (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: var names Created 5 years, 7 months ago
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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 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 GrProcOptInfo; 15 class GrProcOptInfo;
16 16
17 class GrPorterDuffXPFactory : public GrXPFactory { 17 class GrPorterDuffXPFactory : public GrXPFactory {
18 public: 18 public:
19 static GrXPFactory* Create(SkXfermode::Mode mode); 19 static GrXPFactory* Create(SkXfermode::Mode mode);
20 20
21 bool supportsRGBCoverage(GrColor knownColor, uint32_t knownColorFlags) const override; 21 bool supportsRGBCoverage(GrColor knownColor, uint32_t knownColorFlags) const override;
22 22
23 void getInvariantOutput(const GrProcOptInfo& colorPOI, const GrProcOptInfo& coveragePOI, 23 void getInvariantOutput(const GrProcOptInfo& colorPOI, const GrProcOptInfo& coveragePOI,
24 GrXPFactory::InvariantOutput*) const override; 24 GrXPFactory::InvariantOutput*) const override;
25 25
26 private: 26 private:
27 GrPorterDuffXPFactory(GrBlendCoeff src, GrBlendCoeff dst); 27 GrPorterDuffXPFactory(SkXfermode::Mode);
28 28
29 GrXferProcessor* onCreateXferProcessor(const GrCaps& caps, 29 GrXferProcessor* onCreateXferProcessor(const GrCaps& caps,
30 const GrProcOptInfo& colorPOI, 30 const GrProcOptInfo& colorPOI,
31 const GrProcOptInfo& coveragePOI, 31 const GrProcOptInfo& coveragePOI,
32 const GrDeviceCoordTexture* dstCopy) const override; 32 const GrDeviceCoordTexture* dstCopy) const override;
33 33
34 bool willReadDstColor(const GrCaps& caps, 34 bool willReadDstColor(const GrCaps& caps,
35 const GrProcOptInfo& colorPOI, 35 const GrProcOptInfo& colorPOI,
36 const GrProcOptInfo& coveragePOI) const override; 36 const GrProcOptInfo& coveragePOI) const override;
37 37
38 bool onIsEqual(const GrXPFactory& xpfBase) const override { 38 bool onIsEqual(const GrXPFactory& xpfBase) const override {
39 const GrPorterDuffXPFactory& xpf = xpfBase.cast<GrPorterDuffXPFactory>() ; 39 const GrPorterDuffXPFactory& xpf = xpfBase.cast<GrPorterDuffXPFactory>() ;
40 return (fSrcCoeff == xpf.fSrcCoeff && fDstCoeff == xpf.fDstCoeff); 40 return fXfermode == xpf.fXfermode;
41 } 41 }
42 42
43 GR_DECLARE_XP_FACTORY_TEST; 43 GR_DECLARE_XP_FACTORY_TEST;
44 44
45 GrBlendCoeff fSrcCoeff; 45 SkXfermode::Mode fXfermode;
46 GrBlendCoeff fDstCoeff;
47 46
48 typedef GrXPFactory INHERITED; 47 typedef GrXPFactory INHERITED;
48
49 public:
50 static int TestGetXPOutputPrimay(const GrXferProcessor*);
51 static int TestGetXPOutputSecondary(const GrXferProcessor*);
Chris Dalton 2015/05/19 21:47:13 Not sure if there is a "more preferred" way to get
egdaniel 2015/05/20 18:59:42 I'm not really a fan of making these public getter
Chris Dalton 2015/05/21 10:00:48 Done.
49 }; 52 };
50 53
51 #endif 54 #endif
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