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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 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 GrGLSL_DEFINED | 8 #ifndef GrGLSL_DEFINED |
9 #define GrGLSL_DEFINED | 9 #define GrGLSL_DEFINED |
10 | 10 |
11 #include "gl/GrGLInterface.h" | 11 #include "gl/GrGLInterface.h" |
| 12 #include "GrTypesPriv.h" |
12 | 13 |
13 class GrGLShaderVar; | 14 class GrGLShaderVar; |
14 class SkString; | 15 class SkString; |
15 | 16 |
16 // Limited set of GLSL versions we build shaders for. Caller should round | 17 // Limited set of GLSL versions we build shaders for. Caller should round |
17 // down the GLSL version to one of these enums. | 18 // down the GLSL version to one of these enums. |
18 enum GrGLSLGeneration { | 19 enum GrGLSLGeneration { |
19 /** | 20 /** |
20 * Desktop GLSL 1.10 and ES2 shading language (based on desktop GLSL 1.20) | 21 * Desktop GLSL 1.10 and ES2 shading language (based on desktop GLSL 1.20) |
21 */ | 22 */ |
22 k110_GrGLSLGeneration, | 23 k110_GrGLSLGeneration, |
23 /** | 24 /** |
24 * Desktop GLSL 1.30 | 25 * Desktop GLSL 1.30 |
25 */ | 26 */ |
26 k130_GrGLSLGeneration, | 27 k130_GrGLSLGeneration, |
27 /** | 28 /** |
28 * Desktop GLSL 1.40 | 29 * Desktop GLSL 1.40 |
29 */ | 30 */ |
30 k140_GrGLSLGeneration, | 31 k140_GrGLSLGeneration, |
31 /** | 32 /** |
32 * Desktop GLSL 1.50 | 33 * Desktop GLSL 1.50 |
33 */ | 34 */ |
34 k150_GrGLSLGeneration, | 35 k150_GrGLSLGeneration, |
35 }; | 36 }; |
36 | 37 |
37 /** | |
38 * Types of shader-language-specific boxed variables we can create. | |
39 * (Currently only GrGLShaderVars, but should be applicable to other shader | |
40 * languages.) | |
41 */ | |
42 enum GrSLType { | |
43 kVoid_GrSLType, | |
44 kFloat_GrSLType, | |
45 kVec2f_GrSLType, | |
46 kVec3f_GrSLType, | |
47 kVec4f_GrSLType, | |
48 kMat33f_GrSLType, | |
49 kMat44f_GrSLType, | |
50 kSampler2D_GrSLType | |
51 }; | |
52 | |
53 enum GrSLConstantVec { | 38 enum GrSLConstantVec { |
54 kZeros_GrSLConstantVec, | 39 kZeros_GrSLConstantVec, |
55 kOnes_GrSLConstantVec, | 40 kOnes_GrSLConstantVec, |
56 kNone_GrSLConstantVec, | 41 kNone_GrSLConstantVec, |
57 }; | 42 }; |
58 | 43 |
59 namespace { | 44 namespace { |
60 static inline int GrSLTypeToVecLength(GrSLType type) { | 45 static inline int GrSLTypeToVecLength(GrSLType type) { |
61 static const int kVecLengths[] = { | 46 static const int kVecLengths[] = { |
62 0, // kVoid_GrSLType | 47 0, // kVoid_GrSLType |
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171 * by in0 or in1 will not be emitted. The return value indicates whether a zero
s vec was appended | 156 * by in0 or in1 will not be emitted. The return value indicates whether a zero
s vec was appended |
172 * or not. | 157 * or not. |
173 */ | 158 */ |
174 GrSLConstantVec GrGLSLAdd4f(SkString* outAppend, | 159 GrSLConstantVec GrGLSLAdd4f(SkString* outAppend, |
175 const char* in0, | 160 const char* in0, |
176 const char* in1, | 161 const char* in1, |
177 GrSLConstantVec default0 = kZeros_GrSLConstantVec, | 162 GrSLConstantVec default0 = kZeros_GrSLConstantVec, |
178 GrSLConstantVec default1 = kZeros_GrSLConstantVec); | 163 GrSLConstantVec default1 = kZeros_GrSLConstantVec); |
179 | 164 |
180 #endif | 165 #endif |
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