Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(235)

Side by Side Diff: src/gpu/effects/GrConfigConversionEffect.h

Issue 582963002: Solo gp (Closed) Base URL: https://skia.googlesource.com/skia.git@no_peb
Patch Set: rebase Created 6 years, 3 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
« no previous file with comments | « src/gpu/effects/GrBicubicEffect.cpp ('k') | src/gpu/effects/GrConfigConversionEffect.cpp » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
1 /* 1 /*
2 * Copyright 2012 Google Inc. 2 * Copyright 2012 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 GrConfigConversionEffect_DEFINED 8 #ifndef GrConfigConversionEffect_DEFINED
9 #define GrConfigConversionEffect_DEFINED 9 #define GrConfigConversionEffect_DEFINED
10 10
11 #include "GrSingleTextureEffect.h" 11 #include "GrSingleTextureEffect.h"
12 12
13 class GrEffectStage; 13 class GrProcessorStage;
14 class GrGLConfigConversionEffect; 14 class GrGLConfigConversionEffect;
15 15
16 /** 16 /**
17 * This class is used to perform config conversions. Clients may want to read/wr ite data that is 17 * This class is used to perform config conversions. Clients may want to read/wr ite data that is
18 * unpremultiplied. Also on some systems reading/writing BGRA or RGBA is faster. In those cases we 18 * unpremultiplied. Also on some systems reading/writing BGRA or RGBA is faster. In those cases we
19 * read/write using the faster path and perform an R/B swap in the shader if the client data is in 19 * read/write using the faster path and perform an R/B swap in the shader if the client data is in
20 * the slower config. 20 * the slower config.
21 */ 21 */
22 class GrConfigConversionEffect : public GrSingleTextureEffect { 22 class GrConfigConversionEffect : public GrSingleTextureEffect {
23 public: 23 public:
24 /** 24 /**
25 * The PM->UPM or UPM->PM conversions to apply. 25 * The PM->UPM or UPM->PM conversions to apply.
26 */ 26 */
27 enum PMConversion { 27 enum PMConversion {
28 kNone_PMConversion = 0, 28 kNone_PMConversion = 0,
29 kMulByAlpha_RoundUp_PMConversion, 29 kMulByAlpha_RoundUp_PMConversion,
30 kMulByAlpha_RoundDown_PMConversion, 30 kMulByAlpha_RoundDown_PMConversion,
31 kDivByAlpha_RoundUp_PMConversion, 31 kDivByAlpha_RoundUp_PMConversion,
32 kDivByAlpha_RoundDown_PMConversion, 32 kDivByAlpha_RoundDown_PMConversion,
33 33
34 kPMConversionCnt 34 kPMConversionCnt
35 }; 35 };
36 36
37 // Installs an effect in the GrEffectStage to perform a config conversion. 37 // Installs an effect in the GrProcessorStage to perform a config conversion .
38 static const GrEffect* Create(GrTexture*, 38 static const GrFragmentProcessor* Create(GrTexture*, bool swapRedAndBlue, PM Conversion,
39 bool swapRedAndBlue, 39 const SkMatrix&);
40 PMConversion pmConversion,
41 const SkMatrix& matrix);
42 40
43 static const char* Name() { return "Config Conversion"; } 41 static const char* Name() { return "Config Conversion"; }
44 typedef GrGLConfigConversionEffect GLEffect; 42 typedef GrGLConfigConversionEffect GLProcessor;
45 43
46 virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE; 44 virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERR IDE;
47 45
48 virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags ) const SK_OVERRIDE; 46 virtual void getConstantColorComponents(GrColor* color, uint32_t* validFlags ) const SK_OVERRIDE;
49 47
50 bool swapsRedAndBlue() const { return fSwapRedAndBlue; } 48 bool swapsRedAndBlue() const { return fSwapRedAndBlue; }
51 PMConversion pmConversion() const { return fPMConversion; } 49 PMConversion pmConversion() const { return fPMConversion; }
52 50
53 // This function determines whether it is possible to choose PM->UPM and UPM ->PM conversions 51 // This function determines whether it is possible to choose PM->UPM and UPM ->PM conversions
54 // for which in any PM->UPM->PM->UPM sequence the two UPM values are the sam e. This means that 52 // for which in any PM->UPM->PM->UPM sequence the two UPM values are the sam e. This means that
55 // if pixels are read back to a UPM buffer, written back to PM to the GPU, a nd read back again 53 // if pixels are read back to a UPM buffer, written back to PM to the GPU, a nd read back again
56 // both reads will produce the same result. This test is quite expensive and should not be run 54 // both reads will produce the same result. This test is quite expensive and should not be run
57 // multiple times for a given context. 55 // multiple times for a given context.
58 static void TestForPreservingPMConversions(GrContext* context, 56 static void TestForPreservingPMConversions(GrContext* context,
59 PMConversion* PMToUPMRule, 57 PMConversion* PMToUPMRule,
60 PMConversion* UPMToPMRule); 58 PMConversion* UPMToPMRule);
61 59
62 private: 60 private:
63 GrConfigConversionEffect(GrTexture*, 61 GrConfigConversionEffect(GrTexture*,
64 bool swapRedAndBlue, 62 bool swapRedAndBlue,
65 PMConversion pmConversion, 63 PMConversion pmConversion,
66 const SkMatrix& matrix); 64 const SkMatrix& matrix);
67 65
68 virtual bool onIsEqual(const GrEffect&) const SK_OVERRIDE; 66 virtual bool onIsEqual(const GrProcessor&) const SK_OVERRIDE;
69 67
70 bool fSwapRedAndBlue; 68 bool fSwapRedAndBlue;
71 PMConversion fPMConversion; 69 PMConversion fPMConversion;
72 70
73 GR_DECLARE_EFFECT_TEST; 71 GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
74 72
75 typedef GrSingleTextureEffect INHERITED; 73 typedef GrSingleTextureEffect INHERITED;
76 }; 74 };
77 75
78 #endif 76 #endif
OLDNEW
« no previous file with comments | « src/gpu/effects/GrBicubicEffect.cpp ('k') | src/gpu/effects/GrConfigConversionEffect.cpp » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698