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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 #include "effects/GrDisableColorXP.h" | 8 #include "effects/GrDisableColorXP.h" |
9 #include "GrProcessor.h" | 9 #include "GrProcessor.h" |
10 #include "gl/GrGLXferProcessor.h" | 10 #include "gl/GrGLXferProcessor.h" |
11 #include "gl/builders/GrGLFragmentShaderBuilder.h" | 11 #include "gl/builders/GrGLFragmentShaderBuilder.h" |
12 #include "gl/builders/GrGLProgramBuilder.h" | 12 #include "gl/builders/GrGLProgramBuilder.h" |
13 | 13 |
14 /** | 14 /** |
15 * This xfer processor disables color writing. Thus color and coverage and ignor
ed and no blending | 15 * This xfer processor disables color writing. Thus color and coverage and ignor
ed and no blending |
16 * occurs. This XP is usful for things like stenciling. | 16 * occurs. This XP is usful for things like stenciling. |
17 */ | 17 */ |
18 class DisableColorXP : public GrXferProcessor { | 18 class DisableColorXP : public GrXferProcessor { |
19 public: | 19 public: |
20 static GrXferProcessor* Create() { | 20 static GrXferProcessor* Create() { |
21 return SkNEW(DisableColorXP); | 21 return SkNEW(DisableColorXP); |
22 } | 22 } |
23 | 23 |
24 ~DisableColorXP() SK_OVERRIDE {}; | 24 ~DisableColorXP() override {}; |
25 | 25 |
26 const char* name() const SK_OVERRIDE { return "Disable Color"; } | 26 const char* name() const override { return "Disable Color"; } |
27 | 27 |
28 GrGLXferProcessor* createGLInstance() const SK_OVERRIDE; | 28 GrGLXferProcessor* createGLInstance() const override; |
29 | 29 |
30 bool hasSecondaryOutput() const SK_OVERRIDE { return false; } | 30 bool hasSecondaryOutput() const override { return false; } |
31 | 31 |
32 GrXferProcessor::OptFlags getOptimizations(const GrProcOptInfo& colorPOI, | 32 GrXferProcessor::OptFlags getOptimizations(const GrProcOptInfo& colorPOI, |
33 const GrProcOptInfo& coveragePOI, | 33 const GrProcOptInfo& coveragePOI, |
34 bool doesStencilWrite, | 34 bool doesStencilWrite, |
35 GrColor* color, | 35 GrColor* color, |
36 const GrDrawTargetCaps& caps) SK_
OVERRIDE { | 36 const GrDrawTargetCaps& caps) ove
rride { |
37 return GrXferProcessor::kIgnoreColor_OptFlag | GrXferProcessor::kIgnoreC
overage_OptFlag; | 37 return GrXferProcessor::kIgnoreColor_OptFlag | GrXferProcessor::kIgnoreC
overage_OptFlag; |
38 } | 38 } |
39 | 39 |
40 void getBlendInfo(GrXferProcessor::BlendInfo* blendInfo) const SK_OVERRIDE; | 40 void getBlendInfo(GrXferProcessor::BlendInfo* blendInfo) const override; |
41 | 41 |
42 private: | 42 private: |
43 DisableColorXP(); | 43 DisableColorXP(); |
44 | 44 |
45 void onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) con
st SK_OVERRIDE; | 45 void onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) con
st override; |
46 | 46 |
47 bool onIsEqual(const GrXferProcessor& xpBase) const SK_OVERRIDE { | 47 bool onIsEqual(const GrXferProcessor& xpBase) const override { |
48 return true; | 48 return true; |
49 } | 49 } |
50 | 50 |
51 typedef GrXferProcessor INHERITED; | 51 typedef GrXferProcessor INHERITED; |
52 }; | 52 }; |
53 | 53 |
54 /////////////////////////////////////////////////////////////////////////////// | 54 /////////////////////////////////////////////////////////////////////////////// |
55 | 55 |
56 class GLDisableColorXP : public GrGLXferProcessor { | 56 class GLDisableColorXP : public GrGLXferProcessor { |
57 public: | 57 public: |
58 GLDisableColorXP(const GrProcessor&) {} | 58 GLDisableColorXP(const GrProcessor&) {} |
59 | 59 |
60 ~GLDisableColorXP() SK_OVERRIDE {} | 60 ~GLDisableColorXP() override {} |
61 | 61 |
62 static void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBuilde
r*) {} | 62 static void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBuilde
r*) {} |
63 | 63 |
64 private: | 64 private: |
65 void onEmitCode(const EmitArgs& args) SK_OVERRIDE { | 65 void onEmitCode(const EmitArgs& args) override { |
66 // This emit code should be empty. However, on the nexus 6 there is a dr
iver bug where if | 66 // This emit code should be empty. However, on the nexus 6 there is a dr
iver bug where if |
67 // you do not give gl_FragColor a value, the gl context is lost and we e
nd up drawing | 67 // you do not give gl_FragColor a value, the gl context is lost and we e
nd up drawing |
68 // nothing. So this fix just sets the gl_FragColor arbitrarily to 0. | 68 // nothing. So this fix just sets the gl_FragColor arbitrarily to 0. |
69 GrGLFPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); | 69 GrGLFPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); |
70 fsBuilder->codeAppendf("%s = vec4(0);", args.fOutputPrimary); | 70 fsBuilder->codeAppendf("%s = vec4(0);", args.fOutputPrimary); |
71 } | 71 } |
72 | 72 |
73 void onSetData(const GrGLProgramDataManager&, const GrXferProcessor&) SK_OVE
RRIDE {} | 73 void onSetData(const GrGLProgramDataManager&, const GrXferProcessor&) overri
de {} |
74 | 74 |
75 typedef GrGLXferProcessor INHERITED; | 75 typedef GrGLXferProcessor INHERITED; |
76 }; | 76 }; |
77 | 77 |
78 /////////////////////////////////////////////////////////////////////////////// | 78 /////////////////////////////////////////////////////////////////////////////// |
79 | 79 |
80 DisableColorXP::DisableColorXP() { | 80 DisableColorXP::DisableColorXP() { |
81 this->initClassID<DisableColorXP>(); | 81 this->initClassID<DisableColorXP>(); |
82 } | 82 } |
83 | 83 |
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109 | 109 |
110 GR_DEFINE_XP_FACTORY_TEST(GrDisableColorXPFactory); | 110 GR_DEFINE_XP_FACTORY_TEST(GrDisableColorXPFactory); |
111 | 111 |
112 GrXPFactory* GrDisableColorXPFactory::TestCreate(SkRandom* random, | 112 GrXPFactory* GrDisableColorXPFactory::TestCreate(SkRandom* random, |
113 GrContext*, | 113 GrContext*, |
114 const GrDrawTargetCaps&, | 114 const GrDrawTargetCaps&, |
115 GrTexture*[]) { | 115 GrTexture*[]) { |
116 return GrDisableColorXPFactory::Create(); | 116 return GrDisableColorXPFactory::Create(); |
117 } | 117 } |
118 | 118 |
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