Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 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 |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef GPU_COMMAND_BUFFER_SERVICE_SHADER_MANAGER_H_ |
| 6 | #define GPU_COMMAND_BUFFER_SERVICE_SHADER_MANAGER_H_ |
| 7 | |
| 8 | #include <string> |
| 9 | #include "base/basictypes.h" |
Torne (Richard Coles) | 7d4cd47 | 2013-06-19 11:58:07 +0100 | [diff] [blame] | 10 | #include "base/containers/hash_tables.h" |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 11 | #include "base/logging.h" |
| 12 | #include "base/memory/ref_counted.h" |
| 13 | #include "base/memory/scoped_ptr.h" |
| 14 | #include "gpu/command_buffer/service/gl_utils.h" |
| 15 | #include "gpu/command_buffer/service/shader_translator.h" |
| 16 | #include "gpu/gpu_export.h" |
| 17 | |
| 18 | namespace gpu { |
| 19 | namespace gles2 { |
| 20 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 21 | // This is used to keep the source code for a shader. This is because in order |
| 22 | // to emluate GLES2 the shaders will have to be re-written before passed to |
| 23 | // the underlying OpenGL. But, when the user calls glGetShaderSource they |
| 24 | // should get the source they passed in, not the re-written source. |
| 25 | class GPU_EXPORT Shader : public base::RefCounted<Shader> { |
| 26 | public: |
| 27 | typedef ShaderTranslator::VariableInfo VariableInfo; |
| 28 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 29 | void UpdateSource(const char* source) { |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 30 | source_.reset(source ? new std::string(source) : NULL); |
| 31 | } |
| 32 | |
| 33 | void UpdateTranslatedSource(const char* translated_source) { |
| 34 | translated_source_.reset( |
| 35 | translated_source ? new std::string(translated_source) : NULL); |
| 36 | } |
| 37 | |
| 38 | GLuint service_id() const { |
| 39 | return service_id_; |
| 40 | } |
| 41 | |
| 42 | GLenum shader_type() const { |
| 43 | return shader_type_; |
| 44 | } |
| 45 | |
| 46 | const std::string* source() const { |
| 47 | return source_.get(); |
| 48 | } |
| 49 | |
| 50 | const std::string* translated_source() const { |
| 51 | return translated_source_.get(); |
| 52 | } |
| 53 | |
Ben Murdoch | bb1529c | 2013-08-08 10:24:53 +0100 | [diff] [blame^] | 54 | const std::string* signature_source() const { |
| 55 | return signature_source_.get(); |
| 56 | } |
| 57 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 58 | void SetStatus( |
| 59 | bool valid, const char* log, |
| 60 | ShaderTranslatorInterface* translator); |
| 61 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 62 | const VariableInfo* GetAttribInfo(const std::string& name) const; |
| 63 | const VariableInfo* GetUniformInfo(const std::string& name) const; |
| 64 | |
| 65 | // If the original_name is not found, return NULL. |
| 66 | const std::string* GetAttribMappedName( |
| 67 | const std::string& original_name) const; |
| 68 | |
| 69 | // If the hashed_name is not found, return NULL. |
| 70 | const std::string* GetOriginalNameFromHashedName( |
| 71 | const std::string& hashed_name) const; |
| 72 | |
| 73 | const std::string* log_info() const { |
| 74 | return log_info_.get(); |
| 75 | } |
| 76 | |
| 77 | bool IsValid() const { |
| 78 | return valid_; |
| 79 | } |
| 80 | |
| 81 | bool IsDeleted() const { |
| 82 | return service_id_ == 0; |
| 83 | } |
| 84 | |
| 85 | bool InUse() const { |
| 86 | DCHECK_GE(use_count_, 0); |
| 87 | return use_count_ != 0; |
| 88 | } |
| 89 | |
| 90 | // Used by program cache. |
| 91 | const ShaderTranslator::VariableMap& attrib_map() const { |
| 92 | return attrib_map_; |
| 93 | } |
| 94 | |
| 95 | // Used by program cache. |
| 96 | const ShaderTranslator::VariableMap& uniform_map() const { |
| 97 | return uniform_map_; |
| 98 | } |
| 99 | |
| 100 | // Used by program cache. |
| 101 | void set_attrib_map(const ShaderTranslator::VariableMap& attrib_map) { |
| 102 | // copied because cache might be cleared |
| 103 | attrib_map_ = ShaderTranslator::VariableMap(attrib_map); |
| 104 | } |
| 105 | |
| 106 | // Used by program cache. |
| 107 | void set_uniform_map(const ShaderTranslator::VariableMap& uniform_map) { |
| 108 | // copied because cache might be cleared |
| 109 | uniform_map_ = ShaderTranslator::VariableMap(uniform_map); |
| 110 | } |
| 111 | |
| 112 | private: |
| 113 | typedef ShaderTranslator::VariableMap VariableMap; |
| 114 | typedef ShaderTranslator::NameMap NameMap; |
| 115 | |
| 116 | friend class base::RefCounted<Shader>; |
| 117 | friend class ShaderManager; |
| 118 | |
| 119 | Shader(GLuint service_id, GLenum shader_type); |
| 120 | ~Shader(); |
| 121 | |
| 122 | void IncUseCount(); |
| 123 | void DecUseCount(); |
| 124 | void MarkAsDeleted(); |
| 125 | |
| 126 | int use_count_; |
| 127 | |
| 128 | // The shader this Shader is tracking. |
| 129 | GLuint service_id_; |
| 130 | // Type of shader - GL_VERTEX_SHADER or GL_FRAGMENT_SHADER. |
| 131 | GLenum shader_type_; |
| 132 | |
| 133 | // True if compilation succeeded. |
| 134 | bool valid_; |
| 135 | |
| 136 | // The shader source as passed to glShaderSource. |
| 137 | scoped_ptr<std::string> source_; |
| 138 | |
Ben Murdoch | bb1529c | 2013-08-08 10:24:53 +0100 | [diff] [blame^] | 139 | // The source the last compile used. |
| 140 | scoped_ptr<std::string> signature_source_; |
| 141 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 142 | // The translated shader source. |
| 143 | scoped_ptr<std::string> translated_source_; |
| 144 | |
| 145 | // The shader translation log. |
| 146 | scoped_ptr<std::string> log_info_; |
| 147 | |
| 148 | // The type info when the shader was last compiled. |
| 149 | VariableMap attrib_map_; |
| 150 | VariableMap uniform_map_; |
| 151 | |
| 152 | // The name hashing info when the shader was last compiled. |
| 153 | NameMap name_map_; |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 154 | }; |
| 155 | |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 156 | // Tracks the Shaders. |
| 157 | // |
| 158 | // NOTE: To support shared resources an instance of this class will |
| 159 | // need to be shared by multiple GLES2Decoders. |
| 160 | class GPU_EXPORT ShaderManager { |
| 161 | public: |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 162 | ShaderManager(); |
| 163 | ~ShaderManager(); |
| 164 | |
| 165 | // Must call before destruction. |
| 166 | void Destroy(bool have_context); |
| 167 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 168 | // Creates a shader for the given shader ID. |
| 169 | Shader* CreateShader( |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 170 | GLuint client_id, |
| 171 | GLuint service_id, |
| 172 | GLenum shader_type); |
| 173 | |
| 174 | // Gets an existing shader info for the given shader ID. Returns NULL if none |
| 175 | // exists. |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 176 | Shader* GetShader(GLuint client_id); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 177 | |
| 178 | // Gets a client id for a given service id. |
| 179 | bool GetClientId(GLuint service_id, GLuint* client_id) const; |
| 180 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 181 | void MarkAsDeleted(Shader* shader); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 182 | |
| 183 | // Mark a shader as used |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 184 | void UseShader(Shader* shader); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 185 | |
| 186 | // Unmark a shader as used. If it has been deleted and is not used |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 187 | // then we free the shader. |
| 188 | void UnuseShader(Shader* shader); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 189 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 190 | // Check if a Shader is owned by this ShaderManager. |
| 191 | bool IsOwned(Shader* shader); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 192 | |
| 193 | private: |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 194 | friend class Shader; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 195 | |
Torne (Richard Coles) | 2a99a7e | 2013-03-28 15:31:22 +0000 | [diff] [blame] | 196 | // Info for each shader by service side shader Id. |
| 197 | typedef base::hash_map<GLuint, scoped_refptr<Shader> > ShaderMap; |
| 198 | ShaderMap shaders_; |
| 199 | |
| 200 | void RemoveShader(Shader* shader); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 201 | |
| 202 | DISALLOW_COPY_AND_ASSIGN(ShaderManager); |
| 203 | }; |
| 204 | |
| 205 | } // namespace gles2 |
| 206 | } // namespace gpu |
| 207 | |
| 208 | #endif // GPU_COMMAND_BUFFER_SERVICE_SHADER_MANAGER_H_ |
| 209 | |