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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 GrColorProcessor_DEFINED | 8 #ifndef GrColorProcessor_DEFINED |
9 #define GrColorProcessor_DEFINED | 9 #define GrColorProcessor_DEFINED |
10 | 10 |
11 #include "GrFragmentProcessor.h" | 11 #include "GrFragmentProcessor.h" |
12 | 12 |
| 13 class GrInvariantOutput; |
| 14 |
13 /** | 15 /** |
14 * This is a simple GrFragmentProcessor that outputs a constant color. It may do
one of the | 16 * This is a simple GrFragmentProcessor that outputs a constant color. It may do
one of the |
15 * following with its input color: ignore it, or multiply it by the constant col
or, multiply its | 17 * following with its input color: ignore it, or multiply it by the constant col
or, multiply its |
16 * alpha by the constant color and ignore the input color's r, g, and b. | 18 * alpha by the constant color and ignore the input color's r, g, and b. |
17 */ | 19 */ |
18 class GrConstColorProcessor : public GrFragmentProcessor { | 20 class GrConstColorProcessor : public GrFragmentProcessor { |
19 public: | 21 public: |
20 enum InputMode { | 22 enum InputMode { |
21 kIgnore_InputMode, | 23 kIgnore_InputMode, |
22 kModulateRGBA_InputMode, | 24 kModulateRGBA_InputMode, |
23 kModulateA_InputMode, | 25 kModulateA_InputMode, |
24 | 26 |
25 kLastInputMode = kModulateA_InputMode | 27 kLastInputMode = kModulateA_InputMode |
26 }; | 28 }; |
27 static const int kInputModeCnt = kLastInputMode + 1; | 29 static const int kInputModeCnt = kLastInputMode + 1; |
28 | 30 |
29 static GrFragmentProcessor* Create(GrColor color, InputMode mode) { | 31 static GrFragmentProcessor* Create(GrColor color, InputMode mode) { |
30 return new GrConstColorProcessor(color, mode); | 32 return new GrConstColorProcessor(color, mode); |
31 } | 33 } |
32 | 34 |
| 35 ~GrConstColorProcessor() override {} |
| 36 |
33 const char* name() const override { return "Color"; } | 37 const char* name() const override { return "Color"; } |
34 | 38 |
35 GrColor color() const { return fColor; } | 39 GrColor color() const { return fColor; } |
36 | 40 |
37 InputMode inputMode() const { return fMode; } | 41 InputMode inputMode() const { return fMode; } |
38 | 42 |
39 private: | 43 private: |
40 GrConstColorProcessor(GrColor color, InputMode mode) : fColor(color), fMode(
mode) { | 44 GrConstColorProcessor(GrColor color, InputMode mode) : fColor(color), fMode(
mode) { |
41 this->initClassID<GrConstColorProcessor>(); | 45 this->initClassID<GrConstColorProcessor>(); |
42 } | 46 } |
43 | 47 |
44 GrGLFragmentProcessor* onCreateGLInstance() const override; | 48 GrGLFragmentProcessor* onCreateGLInstance() const override; |
45 | 49 |
46 void onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const ov
erride; | 50 void onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const ov
erride; |
47 | 51 |
48 bool onIsEqual(const GrFragmentProcessor&) const override; | 52 bool onIsEqual(const GrFragmentProcessor&) const override; |
49 | 53 |
50 void onComputeInvariantOutput(GrInvariantOutput* inout) const override; | 54 void onComputeInvariantOutput(GrInvariantOutput* inout) const override; |
51 | 55 |
52 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; | 56 GR_DECLARE_FRAGMENT_PROCESSOR_TEST; |
53 | 57 |
54 GrColor fColor; | 58 GrColor fColor; |
55 InputMode fMode; | 59 InputMode fMode; |
56 | 60 |
57 typedef GrFragmentProcessor INHERITED; | 61 typedef GrFragmentProcessor INHERITED; |
58 }; | 62 }; |
59 | 63 |
60 #endif | 64 #endif |
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