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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "gpu/command_buffer/service/shader_manager.h" | 5 #include "gpu/command_buffer/service/shader_manager.h" |
| 6 | 6 |
| 7 #include <utility> | 7 #include <utility> |
| 8 | 8 |
| 9 #include "base/logging.h" | 9 #include "base/logging.h" |
| 10 #include "base/strings/string_util.h" | 10 #include "base/strings/string_util.h" |
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| 22 return fullname.substr(0, pos); | 22 return fullname.substr(0, pos); |
| 23 } | 23 } |
| 24 | 24 |
| 25 } // namespace anonymous | 25 } // namespace anonymous |
| 26 | 26 |
| 27 Shader::Shader(GLuint service_id, GLenum shader_type) | 27 Shader::Shader(GLuint service_id, GLenum shader_type) |
| 28 : use_count_(0), | 28 : use_count_(0), |
| 29 shader_state_(kShaderStateWaiting), | 29 shader_state_(kShaderStateWaiting), |
| 30 service_id_(service_id), | 30 service_id_(service_id), |
| 31 shader_type_(shader_type), | 31 shader_type_(shader_type), |
| 32 source_type_(kANGLE), |
| 32 valid_(false) { | 33 valid_(false) { |
| 33 } | 34 } |
| 34 | 35 |
| 35 Shader::~Shader() { | 36 Shader::~Shader() { |
| 36 } | 37 } |
| 37 | 38 |
| 38 void Shader::RequestCompile() { | 39 void Shader::RequestCompile(scoped_refptr<ShaderTranslatorInterface> translator, |
| 40 TranslatedShaderSourceType type) { |
| 39 shader_state_ = kShaderStateCompileRequested; | 41 shader_state_ = kShaderStateCompileRequested; |
| 42 translator_ = translator; |
| 43 source_type_ = type; |
| 40 last_compiled_source_ = source_; | 44 last_compiled_source_ = source_; |
| 41 } | 45 } |
| 42 | 46 |
| 43 void Shader::DoCompile(ShaderTranslatorInterface* translator, | 47 void Shader::DoCompile() { |
| 44 TranslatedShaderSourceType type) { | |
| 45 // We require that RequestCompile() must be called before DoCompile(), | 48 // We require that RequestCompile() must be called before DoCompile(), |
| 46 // so we can return early if the shader state is not what we expect. | 49 // so we can return early if the shader state is not what we expect. |
| 47 if (shader_state_ != kShaderStateCompileRequested) { | 50 if (shader_state_ != kShaderStateCompileRequested) { |
| 48 return; | 51 return; |
| 49 } | 52 } |
| 50 | 53 |
| 51 // Signify the shader has been compiled, whether or not it is valid | 54 // Signify the shader has been compiled, whether or not it is valid |
| 52 // is dependent on the |valid_| member variable. | 55 // is dependent on the |valid_| member variable. |
| 53 shader_state_ = kShaderStateCompiled; | 56 shader_state_ = kShaderStateCompiled; |
| 57 valid_ = false; |
| 54 | 58 |
| 55 // Translate GL ES 2.0 shader to Desktop GL shader and pass that to | 59 // Translate GL ES 2.0 shader to Desktop GL shader and pass that to |
| 56 // glShaderSource and then glCompileShader. | 60 // glShaderSource and then glCompileShader. |
| 57 const char* source_for_driver = last_compiled_source_.c_str(); | 61 const char* source_for_driver = last_compiled_source_.c_str(); |
| 62 ShaderTranslatorInterface* translator = translator_.get(); |
| 58 if (translator) { | 63 if (translator) { |
| 59 valid_ = translator->Translate(last_compiled_source_, | 64 bool success = translator->Translate(last_compiled_source_, |
| 60 &log_info_, | 65 &log_info_, |
| 61 &translated_source_, | 66 &translated_source_, |
| 62 &attrib_map_, | 67 &attrib_map_, |
| 63 &uniform_map_, | 68 &uniform_map_, |
| 64 &varying_map_, | 69 &varying_map_, |
| 65 &name_map_); | 70 &name_map_); |
| 66 if (!valid_) { | 71 if (!success) { |
| 67 return; | 72 return; |
| 68 } | 73 } |
| 69 source_for_driver = translated_source_.c_str(); | 74 source_for_driver = translated_source_.c_str(); |
| 70 } | 75 } |
| 71 | 76 |
| 72 glShaderSource(service_id_, 1, &source_for_driver, NULL); | 77 glShaderSource(service_id_, 1, &source_for_driver, NULL); |
| 73 glCompileShader(service_id_); | 78 glCompileShader(service_id_); |
| 74 if (type == kANGLE) { | 79 if (source_type_ == kANGLE) { |
| 75 GLint max_len = 0; | 80 GLint max_len = 0; |
| 76 glGetShaderiv(service_id_, | 81 glGetShaderiv(service_id_, |
| 77 GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE, | 82 GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE, |
| 78 &max_len); | 83 &max_len); |
| 79 translated_source_.resize(max_len); | 84 translated_source_.resize(max_len); |
| 80 GLint len = 0; | 85 GLint len = 0; |
| 81 glGetTranslatedShaderSourceANGLE( | 86 glGetTranslatedShaderSourceANGLE( |
| 82 service_id_, translated_source_.size(), | 87 service_id_, translated_source_.size(), |
| 83 &len, &translated_source_.at(0)); | 88 &len, &translated_source_.at(0)); |
| 84 DCHECK(max_len == 0 || len < max_len); | 89 DCHECK(max_len == 0 || len < max_len); |
| 85 DCHECK(len == 0 || translated_source_[len] == '\0'); | 90 DCHECK(len == 0 || translated_source_[len] == '\0'); |
| 86 translated_source_.resize(len); | 91 translated_source_.resize(len); |
| 92 source_for_driver = translated_source_.c_str(); |
| 87 } | 93 } |
| 88 | 94 |
| 89 GLint status = GL_FALSE; | 95 GLint status = GL_FALSE; |
| 90 glGetShaderiv(service_id_, GL_COMPILE_STATUS, &status); | 96 glGetShaderiv(service_id_, GL_COMPILE_STATUS, &status); |
| 91 if (status != GL_TRUE) { | 97 if (status == GL_TRUE) { |
| 98 valid_ = true; |
| 99 } else { |
| 92 // We cannot reach here if we are using the shader translator. | 100 // We cannot reach here if we are using the shader translator. |
| 93 // All invalid shaders must be rejected by the translator. | 101 // All invalid shaders must be rejected by the translator. |
| 94 // All translated shaders must compile. | 102 // All translated shaders must compile. |
| 95 GLint max_len = 0; | 103 GLint max_len = 0; |
| 96 glGetShaderiv(service_id_, GL_INFO_LOG_LENGTH, &max_len); | 104 glGetShaderiv(service_id_, GL_INFO_LOG_LENGTH, &max_len); |
| 97 log_info_.resize(max_len); | 105 log_info_.resize(max_len); |
| 98 GLint len = 0; | 106 GLint len = 0; |
| 99 glGetShaderInfoLog(service_id_, log_info_.size(), &len, &log_info_.at(0)); | 107 glGetShaderInfoLog(service_id_, log_info_.size(), &len, &log_info_.at(0)); |
| 100 DCHECK(max_len == 0 || len < max_len); | 108 DCHECK(max_len == 0 || len < max_len); |
| 101 DCHECK(len == 0 || log_info_[len] == '\0'); | 109 DCHECK(len == 0 || log_info_[len] == '\0'); |
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| 250 DCHECK(shader); | 258 DCHECK(shader); |
| 251 DCHECK(IsOwned(shader)); | 259 DCHECK(IsOwned(shader)); |
| 252 shader->DecUseCount(); | 260 shader->DecUseCount(); |
| 253 RemoveShader(shader); | 261 RemoveShader(shader); |
| 254 } | 262 } |
| 255 | 263 |
| 256 } // namespace gles2 | 264 } // namespace gles2 |
| 257 } // namespace gpu | 265 } // namespace gpu |
| 258 | 266 |
| 259 | 267 |
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