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 #include "gpu/command_buffer/service/shader_translator_cache.h" 6 7 namespace gpu { 8 namespace gles2 { 9 10 ShaderTranslatorCache* ShaderTranslatorCache::GetInstance() { 11 return Singleton<ShaderTranslatorCache>::get(); 12 } 13 14 ShaderTranslatorCache::ShaderTranslatorCache() { 15 } 16 17 ShaderTranslatorCache::~ShaderTranslatorCache() { 18 } 19 20 void ShaderTranslatorCache::OnDestruct(ShaderTranslator* translator) { 21 Cache::iterator it = cache_.begin(); 22 while (it != cache_.end()) { 23 if (it->second == translator) { 24 cache_.erase(it); 25 return; 26 } 27 it++; 28 } 29 } 30 31 scoped_refptr<ShaderTranslator> ShaderTranslatorCache::GetTranslator( 32 ShShaderType shader_type, 33 ShShaderSpec shader_spec, 34 const ShBuiltInResources* resources, 35 ShaderTranslatorInterface::GlslImplementationType 36 glsl_implementation_type, 37 ShaderTranslatorInterface::GlslBuiltInFunctionBehavior 38 glsl_built_in_function_behavior) { 39 ShaderTranslatorInitParams params(shader_type, 40 shader_spec, 41 *resources, 42 glsl_implementation_type, 43 glsl_built_in_function_behavior); 44 45 Cache::iterator it = cache_.find(params); 46 if (it != cache_.end()) 47 return it->second; 48 49 ShaderTranslator* translator = new ShaderTranslator(); 50 if (translator->Init(shader_type, shader_spec, resources, 51 glsl_implementation_type, 52 glsl_built_in_function_behavior)) { 53 cache_[params] = translator; 54 translator->AddDestructionObserver(this); 55 return translator; 56 } else { 57 return NULL; 58 } 59 } 60 61 } // namespace gles2 62 } // namespace gpu 63
