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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 "GrGLShaderStringBuilder.h" | 8 #include "GrGLShaderStringBuilder.h" |
9 #include "../GrGLGpu.h" | 9 #include "../GrGLGpu.h" |
10 #include "gl/GrGLSLPrettyPrint.h" | 10 #include "gl/GrGLSLPrettyPrint.h" |
11 #include "SkRTConf.h" | 11 #include "SkRTConf.h" |
12 #include "SkTraceEvent.h" | 12 #include "SkTraceEvent.h" |
13 | 13 |
14 #define GL_CALL(X) GR_GL_CALL(gpu->glInterface(), X) | 14 #define GL_CALL(X) GR_GL_CALL(gpu->glInterface(), X) |
15 #define GL_CALL_RET(R, X) GR_GL_CALL_RET(gpu->glInterface(), R, X) | 15 #define GL_CALL_RET(R, X) GR_GL_CALL_RET(gpu->glInterface(), R, X) |
16 | 16 |
17 SK_CONF_DECLARE(bool, c_PrintShaders, "gpu.printShaders", false, | 17 SK_CONF_DECLARE(bool, c_PrintShaders, "gpu.printShaders", false, |
18 "Print the source code for all shaders generated."); | 18 "Print the source code for all shaders generated."); |
19 | 19 |
20 GrGLuint GrGLCompileAndAttachShader(const GrGLContext& glCtx, | 20 GrGLuint GrGLCompileAndAttachShader(const GrGLContext& glCtx, |
21 GrGLuint programId, | 21 GrGLuint programId, |
22 GrGLenum type, | 22 GrGLenum type, |
23 const SkString& shaderSrc, | 23 const SkString& shaderSrc, |
24 GrContext::GPUStats* gpuStats) { | 24 GrGpu::Stats* stats) { |
25 const GrGLInterface* gli = glCtx.interface(); | 25 const GrGLInterface* gli = glCtx.interface(); |
26 | 26 |
27 GrGLuint shaderId; | 27 GrGLuint shaderId; |
28 GR_GL_CALL_RET(gli, shaderId, CreateShader(type)); | 28 GR_GL_CALL_RET(gli, shaderId, CreateShader(type)); |
29 if (0 == shaderId) { | 29 if (0 == shaderId) { |
30 return 0; | 30 return 0; |
31 } | 31 } |
32 | 32 |
33 #ifdef SK_DEBUG | 33 #ifdef SK_DEBUG |
34 SkString prettySource = GrGLSLPrettyPrint::PrettyPrintGLSL(shaderSrc, false)
; | 34 SkString prettySource = GrGLSLPrettyPrint::PrettyPrintGLSL(shaderSrc, false)
; |
35 const GrGLchar* sourceStr = prettySource.c_str(); | 35 const GrGLchar* sourceStr = prettySource.c_str(); |
36 GrGLint sourceLength = static_cast<GrGLint>(prettySource.size()); | 36 GrGLint sourceLength = static_cast<GrGLint>(prettySource.size()); |
37 #else | 37 #else |
38 GrGLint sourceLength = static_cast<GrGLint>(shaderSrc.size()); | 38 GrGLint sourceLength = static_cast<GrGLint>(shaderSrc.size()); |
39 const GrGLchar* sourceStr = shaderSrc.c_str(); | 39 const GrGLchar* sourceStr = shaderSrc.c_str(); |
40 #endif | 40 #endif |
41 GR_GL_CALL(gli, ShaderSource(shaderId, 1, &sourceStr, &sourceLength)); | 41 GR_GL_CALL(gli, ShaderSource(shaderId, 1, &sourceStr, &sourceLength)); |
42 gpuStats->incShaderCompilations(); | 42 stats->incShaderCompilations(); |
43 GR_GL_CALL(gli, CompileShader(shaderId)); | 43 GR_GL_CALL(gli, CompileShader(shaderId)); |
44 | 44 |
45 // Calling GetShaderiv in Chromium is quite expensive. Assume success in rel
ease builds. | 45 // Calling GetShaderiv in Chromium is quite expensive. Assume success in rel
ease builds. |
46 bool checkCompiled = !glCtx.isChromium(); | 46 bool checkCompiled = !glCtx.isChromium(); |
47 #ifdef SK_DEBUG | 47 #ifdef SK_DEBUG |
48 checkCompiled = true; | 48 checkCompiled = true; |
49 #endif | 49 #endif |
50 if (checkCompiled) { | 50 if (checkCompiled) { |
51 GrGLint compiled = GR_GL_INIT_ZERO; | 51 GrGLint compiled = GR_GL_INIT_ZERO; |
52 GR_GL_CALL(gli, GetShaderiv(shaderId, GR_GL_COMPILE_STATUS, &compiled)); | 52 GR_GL_CALL(gli, GetShaderiv(shaderId, GR_GL_COMPILE_STATUS, &compiled)); |
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78 } | 78 } |
79 | 79 |
80 // Attach the shader, but defer deletion until after we have linked the prog
ram. | 80 // Attach the shader, but defer deletion until after we have linked the prog
ram. |
81 // This works around a bug in the Android emulator's GLES2 wrapper which | 81 // This works around a bug in the Android emulator's GLES2 wrapper which |
82 // will immediately delete the shader object and free its memory even though
it's | 82 // will immediately delete the shader object and free its memory even though
it's |
83 // attached to a program, which then causes glLinkProgram to fail. | 83 // attached to a program, which then causes glLinkProgram to fail. |
84 GR_GL_CALL(gli, AttachShader(programId, shaderId)); | 84 GR_GL_CALL(gli, AttachShader(programId, shaderId)); |
85 | 85 |
86 return shaderId; | 86 return shaderId; |
87 } | 87 } |
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