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_MEMORY_PROGRAM_CACHE_H_ 6 #define GPU_COMMAND_BUFFER_SERVICE_MEMORY_PROGRAM_CACHE_H_ 7 8 #include <map> 9 #include <string> 10 11 #include "base/containers/hash_tables.h" 12 #include "base/containers/mru_cache.h" 13 #include "base/memory/ref_counted.h" 14 #include "base/memory/scoped_ptr.h" 15 #include "gpu/command_buffer/service/gles2_cmd_decoder.h" 16 #include "gpu/command_buffer/service/program_cache.h" 17 #include "gpu/command_buffer/service/shader_translator.h" 18 19 namespace gpu { 20 namespace gles2 { 21 22 // Program cache that stores binaries completely in-memory 23 class GPU_EXPORT MemoryProgramCache : public ProgramCache { 24 public: 25 MemoryProgramCache(); 26 explicit MemoryProgramCache(const size_t max_cache_size_bytes); 27 virtual ~MemoryProgramCache(); 28 29 virtual ProgramLoadResult LoadLinkedProgram( 30 GLuint program, 31 Shader* shader_a, 32 const ShaderTranslatorInterface* translator_a, 33 Shader* shader_b, 34 const ShaderTranslatorInterface* translator_b, 35 const LocationMap* bind_attrib_location_map, 36 const ShaderCacheCallback& shader_callback) OVERRIDE; 37 virtual void SaveLinkedProgram( 38 GLuint program, 39 const Shader* shader_a, 40 const ShaderTranslatorInterface* translator_a, 41 const Shader* shader_b, 42 const ShaderTranslatorInterface* translator_b, 43 const LocationMap* bind_attrib_location_map, 44 const ShaderCacheCallback& shader_callback) OVERRIDE; 45 46 virtual void LoadProgram(const std::string& program) OVERRIDE; 47 48 private: 49 virtual void ClearBackend() OVERRIDE; 50 51 class ProgramCacheValue : public base::RefCounted<ProgramCacheValue> { 52 public: 53 ProgramCacheValue(GLsizei length, 54 GLenum format, 55 const char* data, 56 const std::string& program_hash, 57 const char* shader_0_hash, 58 const ShaderTranslator::VariableMap& attrib_map_0, 59 const ShaderTranslator::VariableMap& uniform_map_0, 60 const ShaderTranslator::VariableMap& varying_map_0, 61 const char* shader_1_hash, 62 const ShaderTranslator::VariableMap& attrib_map_1, 63 const ShaderTranslator::VariableMap& uniform_map_1, 64 const ShaderTranslator::VariableMap& varying_map_1, 65 MemoryProgramCache* program_cache); 66 length()67 GLsizei length() const { 68 return length_; 69 } 70 format()71 GLenum format() const { 72 return format_; 73 } 74 data()75 const char* data() const { 76 return data_.get(); 77 } 78 shader_0_hash()79 const std::string& shader_0_hash() const { 80 return shader_0_hash_; 81 } 82 attrib_map_0()83 const ShaderTranslator::VariableMap& attrib_map_0() const { 84 return attrib_map_0_; 85 } 86 uniform_map_0()87 const ShaderTranslator::VariableMap& uniform_map_0() const { 88 return uniform_map_0_; 89 } 90 varying_map_0()91 const ShaderTranslator::VariableMap& varying_map_0() const { 92 return varying_map_0_; 93 } 94 shader_1_hash()95 const std::string& shader_1_hash() const { 96 return shader_1_hash_; 97 } 98 attrib_map_1()99 const ShaderTranslator::VariableMap& attrib_map_1() const { 100 return attrib_map_1_; 101 } 102 uniform_map_1()103 const ShaderTranslator::VariableMap& uniform_map_1() const { 104 return uniform_map_1_; 105 } 106 varying_map_1()107 const ShaderTranslator::VariableMap& varying_map_1() const { 108 return varying_map_1_; 109 } 110 111 private: 112 friend class base::RefCounted<ProgramCacheValue>; 113 114 ~ProgramCacheValue(); 115 116 const GLsizei length_; 117 const GLenum format_; 118 const scoped_ptr<const char[]> data_; 119 const std::string program_hash_; 120 const std::string shader_0_hash_; 121 const ShaderTranslator::VariableMap attrib_map_0_; 122 const ShaderTranslator::VariableMap uniform_map_0_; 123 const ShaderTranslator::VariableMap varying_map_0_; 124 const std::string shader_1_hash_; 125 const ShaderTranslator::VariableMap attrib_map_1_; 126 const ShaderTranslator::VariableMap uniform_map_1_; 127 const ShaderTranslator::VariableMap varying_map_1_; 128 MemoryProgramCache* const program_cache_; 129 130 DISALLOW_COPY_AND_ASSIGN(ProgramCacheValue); 131 }; 132 133 friend class ProgramCacheValue; 134 135 typedef base::MRUCache<std::string, 136 scoped_refptr<ProgramCacheValue> > ProgramMRUCache; 137 138 const size_t max_size_bytes_; 139 size_t curr_size_bytes_; 140 ProgramMRUCache store_; 141 142 DISALLOW_COPY_AND_ASSIGN(MemoryProgramCache); 143 }; 144 145 } // namespace gles2 146 } // namespace gpu 147 148 #endif // GPU_COMMAND_BUFFER_SERVICE_MEMORY_PROGRAM_CACHE_H_ 149