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 <GLES2/gl2.h> 6 7 #include "gpu/command_buffer/service/shader_translator_cache.h" 8 9 namespace gpu { 10 namespace gles2 { 11 12 ShaderTranslatorCache::ShaderTranslatorCache() { 13 } 14 15 ShaderTranslatorCache::~ShaderTranslatorCache() { 16 DCHECK(cache_.empty()); 17 } 18 19 void ShaderTranslatorCache::OnDestruct(ShaderTranslator* translator) { 20 Cache::iterator it = cache_.begin(); 21 while (it != cache_.end()) { 22 if (it->second == translator) { 23 cache_.erase(it); 24 return; 25 } 26 it++; 27 } 28 } 29 30 scoped_refptr<ShaderTranslator> ShaderTranslatorCache::GetTranslator( 31 sh::GLenum shader_type, 32 ShShaderSpec shader_spec, 33 const ShBuiltInResources* resources, 34 ShaderTranslatorInterface::GlslImplementationType 35 glsl_implementation_type, 36 ShCompileOptions driver_bug_workarounds) { 37 ShaderTranslatorInitParams params(shader_type, 38 shader_spec, 39 *resources, 40 glsl_implementation_type, 41 driver_bug_workarounds); 42 43 Cache::iterator it = cache_.find(params); 44 if (it != cache_.end()) 45 return it->second; 46 47 ShaderTranslator* translator = new ShaderTranslator(); 48 if (translator->Init(shader_type, shader_spec, resources, 49 glsl_implementation_type, 50 driver_bug_workarounds)) { 51 cache_[params] = translator; 52 translator->AddDestructionObserver(this); 53 return translator; 54 } else { 55 return NULL; 56 } 57 } 58 59 } // namespace gles2 60 } // namespace gpu 61
