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Side by Side Diff: src/gpu/gl/GrGLFragmentProcessor.h

Issue 1425013003: Remove GrGLProcessor and create GrGLSLTextureSampler class. (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: remove grglprocessor from gyp Created 5 years, 1 month ago
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1 /* 1 /*
2 * Copyright 2013 Google Inc. 2 * Copyright 2013 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 GrGLFragmentProcessor_DEFINED 8 #ifndef GrGLFragmentProcessor_DEFINED
9 #define GrGLFragmentProcessor_DEFINED 9 #define GrGLFragmentProcessor_DEFINED
10 10
11 #include "GrGLProcessor.h" 11 #include "glsl/GrGLSLProcessorTypes.h"
12 #include "glsl/GrGLSLProgramDataManager.h" 12 #include "glsl/GrGLSLProgramDataManager.h"
13 #include "glsl/GrGLSLTextureSampler.h"
13 14
15 class GrProcessor;
16 class GrProcessorKeyBuilder;
14 class GrGLFPBuilder; 17 class GrGLFPBuilder;
15 class GrGLSLCaps; 18 class GrGLSLCaps;
16 19
17 class GrGLFragmentProcessor { 20 class GrGLFragmentProcessor {
18 public: 21 public:
19 GrGLFragmentProcessor() {} 22 GrGLFragmentProcessor() {}
20 23
21 virtual ~GrGLFragmentProcessor() { 24 virtual ~GrGLFragmentProcessor() {
22 for (int i = 0; i < fChildProcessors.count(); ++i) { 25 for (int i = 0; i < fChildProcessors.count(); ++i) {
23 delete fChildProcessors[i]; 26 delete fChildProcessors[i];
24 } 27 }
25 } 28 }
26 29
27 typedef GrGLSLProgramDataManager::UniformHandle UniformHandle; 30 typedef GrGLSLProgramDataManager::UniformHandle UniformHandle;
28 typedef GrGLProcessor::TransformedCoordsArray TransformedCoordsArray; 31 typedef GrGLSLTextureSampler::TextureSamplerArray TextureSamplerArray;
29 typedef GrGLProcessor::TextureSamplerArray TextureSamplerArray;
30 32
31 /** Called when the program stage should insert its code into the shaders. T he code in each 33 /** Called when the program stage should insert its code into the shaders. T he code in each
32 shader will be in its own block ({}) and so locally scoped names will no t collide across 34 shader will be in its own block ({}) and so locally scoped names will no t collide across
33 stages. 35 stages.
34 36
35 @param builder Interface used to emit code in the shaders. 37 @param builder Interface used to emit code in the shaders.
36 @param processor The processor that generated this program stage. 38 @param processor The processor that generated this program stage.
37 @param key The key that was computed by GenKey() from the gener ating GrProcessor. 39 @param key The key that was computed by GenKey() from the gener ating GrProcessor.
38 @param outputColor A predefined vec4 in the FS in which the stage shoul d place its output 40 @param outputColor A predefined vec4 in the FS in which the stage shoul d place its output
39 color (or coverage). 41 color (or coverage).
40 @param inputColor A vec4 that holds the input color to the stage in th e FS. This may be 42 @param inputColor A vec4 that holds the input color to the stage in th e FS. This may be
41 nullptr in which case the implied input is solid whi te (all ones). 43 nullptr in which case the implied input is solid whi te (all ones).
42 TODO: Better system for communicating optimization i nfo (e.g. input 44 TODO: Better system for communicating optimization i nfo (e.g. input
43 color is solid white, trans black, known to be opaqu e, etc.) that allows 45 color is solid white, trans black, known to be opaqu e, etc.) that allows
44 the processor to communicate back similar known info about its output. 46 the processor to communicate back similar known info about its output.
45 @param samplers Contains one entry for each GrTextureAccess of the G rProcessor. These 47 @param samplers Contains one entry for each GrTextureAccess of the G rProcessor. These
46 can be passed to the builder to emit texture reads i n the generated 48 can be passed to the builder to emit texture reads i n the generated
47 code. 49 code.
48 */ 50 */
49 51
50 struct EmitArgs { 52 struct EmitArgs {
51 EmitArgs(GrGLFPBuilder* builder, 53 EmitArgs(GrGLFPBuilder* builder,
52 const GrFragmentProcessor& fp, 54 const GrFragmentProcessor& fp,
53 const char* outputColor, 55 const char* outputColor,
54 const char* inputColor, 56 const char* inputColor,
55 const TransformedCoordsArray& coords, 57 const GrGLSLTransformedCoordsArray& coords,
56 const TextureSamplerArray& samplers) 58 const TextureSamplerArray& samplers)
57 : fBuilder(builder) 59 : fBuilder(builder)
58 , fFp(fp) 60 , fFp(fp)
59 , fOutputColor(outputColor) 61 , fOutputColor(outputColor)
60 , fInputColor(inputColor) 62 , fInputColor(inputColor)
61 , fCoords(coords) 63 , fCoords(coords)
62 , fSamplers(samplers) {} 64 , fSamplers(samplers) {}
63 GrGLFPBuilder* fBuilder; 65 GrGLFPBuilder* fBuilder;
64 const GrFragmentProcessor& fFp; 66 const GrFragmentProcessor& fFp;
65 const char* fOutputColor; 67 const char* fOutputColor;
66 const char* fInputColor; 68 const char* fInputColor;
67 const TransformedCoordsArray& fCoords; 69 const GrGLSLTransformedCoordsArray& fCoords;
68 const TextureSamplerArray& fSamplers; 70 const TextureSamplerArray& fSamplers;
69 }; 71 };
70 72
71 virtual void emitCode(EmitArgs&) = 0; 73 virtual void emitCode(EmitArgs&) = 0;
72 74
73 void setData(const GrGLSLProgramDataManager& pdman, const GrFragmentProcesso r& processor); 75 void setData(const GrGLSLProgramDataManager& pdman, const GrFragmentProcesso r& processor);
74 76
75 static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuil der*) {} 77 static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKeyBuil der*) {}
76 78
77 int numChildProcessors() const { return fChildProcessors.count(); } 79 int numChildProcessors() const { return fChildProcessors.count(); }
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102 to have an identical processor key as the one that created this GrGLFragment Processor. */ 104 to have an identical processor key as the one that created this GrGLFragment Processor. */
103 // TODO update this to pass in GrFragmentProcessor 105 // TODO update this to pass in GrFragmentProcessor
104 virtual void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) {} 106 virtual void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) {}
105 107
106 private: 108 private:
107 void internalEmitChild(int, const char*, const char*, EmitArgs&); 109 void internalEmitChild(int, const char*, const char*, EmitArgs&);
108 110
109 SkTArray<GrGLFragmentProcessor*, true> fChildProcessors; 111 SkTArray<GrGLFragmentProcessor*, true> fChildProcessors;
110 112
111 friend class GrFragmentProcessor; 113 friend class GrFragmentProcessor;
112 typedef GrGLProcessor INHERITED;
113 }; 114 };
114 115
115 #endif 116 #endif
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