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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 |
(...skipping 16 matching lines...) Expand all Loading... |
27 kNone_PMConversion = 0, | 27 kNone_PMConversion = 0, |
28 kMulByAlpha_RoundUp_PMConversion, | 28 kMulByAlpha_RoundUp_PMConversion, |
29 kMulByAlpha_RoundDown_PMConversion, | 29 kMulByAlpha_RoundDown_PMConversion, |
30 kDivByAlpha_RoundUp_PMConversion, | 30 kDivByAlpha_RoundUp_PMConversion, |
31 kDivByAlpha_RoundDown_PMConversion, | 31 kDivByAlpha_RoundDown_PMConversion, |
32 | 32 |
33 kPMConversionCnt | 33 kPMConversionCnt |
34 }; | 34 }; |
35 | 35 |
36 static const GrFragmentProcessor* Create(GrTexture*, bool swapRedAndBlue, PM
Conversion, | 36 static const GrFragmentProcessor* Create(GrTexture*, bool swapRedAndBlue, PM
Conversion, |
37 const SkMatrix&); | 37 const SkMatrix&, |
| 38 GrRenderTarget* dst); |
38 | 39 |
39 const char* name() const override { return "Config Conversion"; } | 40 const char* name() const override { return "Config Conversion"; } |
40 | 41 |
41 bool swapsRedAndBlue() const { return fSwapRedAndBlue; } | 42 bool swapsRedAndBlue() const { return fSwapRedAndBlue; } |
42 PMConversion pmConversion() const { return fPMConversion; } | 43 PMConversion pmConversion() const { return fPMConversion; } |
43 | 44 |
44 // This function determines whether it is possible to choose PM->UPM and UPM
->PM conversions | 45 // This function determines whether it is possible to choose PM->UPM and UPM
->PM conversions |
45 // for which in any PM->UPM->PM->UPM sequence the two UPM values are the sam
e. This means that | 46 // for which in any PM->UPM->PM->UPM sequence the two UPM values are the sam
e. This means that |
46 // if pixels are read back to a UPM buffer, written back to PM to the GPU, a
nd read back again | 47 // if pixels are read back to a UPM buffer, written back to PM to the GPU, a
nd read back again |
47 // both reads will produce the same result. This test is quite expensive and
should not be run | 48 // both reads will produce the same result. This test is quite expensive and
should not be run |
48 // multiple times for a given context. | 49 // multiple times for a given context. |
49 static void TestForPreservingPMConversions(GrContext* context, | 50 static void TestForPreservingPMConversions(GrContext* context, |
50 PMConversion* PMToUPMRule, | 51 PMConversion* PMToUPMRule, |
51 PMConversion* UPMToPMRule); | 52 PMConversion* UPMToPMRule); |
52 | 53 |
53 private: | 54 private: |
54 GrConfigConversionEffect(GrTexture*, | 55 GrConfigConversionEffect(GrTexture*, |
55 bool swapRedAndBlue, | 56 bool swapRedAndBlue, |
56 PMConversion pmConversion, | 57 PMConversion pmConversion, |
57 const SkMatrix& matrix); | 58 const SkMatrix& matrix, GrRenderTarget* dst); |
58 | 59 |
59 GrGLFragmentProcessor* onCreateGLInstance() const override; | 60 GrGLFragmentProcessor* onCreateGLInstance() const override; |
60 | 61 |
61 void onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const ov
erride; | 62 void onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const ov
erride; |
62 | 63 |
63 bool onIsEqual(const GrFragmentProcessor&) const override; | 64 bool onIsEqual(const GrFragmentProcessor&) const override; |
64 | 65 |
65 void onComputeInvariantOutput(GrInvariantOutput* inout) const override; | 66 void onComputeInvariantOutput(GrInvariantOutput* inout) const override; |
66 | 67 |
67 bool fSwapRedAndBlue; | 68 bool fSwapRedAndBlue; |
68 PMConversion fPMConversion; | 69 PMConversion fPMConversion; |
69 | 70 |
70 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; | 71 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
71 | 72 |
72 typedef GrSingleTextureEffect INHERITED; | 73 typedef GrSingleTextureEffect INHERITED; |
73 }; | 74 }; |
74 | 75 |
75 #endif | 76 #endif |
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