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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GPU_COMMAND_BUFFER_SERVICE_MEMORY_PROGRAM_CACHE_H_
#define GPU_COMMAND_BUFFER_SERVICE_MEMORY_PROGRAM_CACHE_H_
#include <map>
#include <string>
#include "base/containers/hash_tables.h"
#include "base/containers/mru_cache.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "gpu/command_buffer/service/gles2_cmd_decoder.h"
#include "gpu/command_buffer/service/program_cache.h"
#include "gpu/command_buffer/service/shader_translator.h"
namespace gpu {
namespace gles2 {
// Program cache that stores binaries completely in-memory
class GPU_EXPORT MemoryProgramCache : public ProgramCache {
public:
MemoryProgramCache();
explicit MemoryProgramCache(const size_t max_cache_size_bytes);
virtual ~MemoryProgramCache();
virtual ProgramLoadResult LoadLinkedProgram(
GLuint program,
Shader* shader_a,
const ShaderTranslatorInterface* translator_a,
Shader* shader_b,
const ShaderTranslatorInterface* translator_b,
const LocationMap* bind_attrib_location_map,
const ShaderCacheCallback& shader_callback) OVERRIDE;
virtual void SaveLinkedProgram(
GLuint program,
const Shader* shader_a,
const ShaderTranslatorInterface* translator_a,
const Shader* shader_b,
const ShaderTranslatorInterface* translator_b,
const LocationMap* bind_attrib_location_map,
const ShaderCacheCallback& shader_callback) OVERRIDE;
virtual void LoadProgram(const std::string& program) OVERRIDE;
private:
virtual void ClearBackend() OVERRIDE;
class ProgramCacheValue : public base::RefCounted<ProgramCacheValue> {
public:
ProgramCacheValue(GLsizei length,
GLenum format,
const char* data,
const std::string& program_hash,
const char* shader_0_hash,
const ShaderTranslator::VariableMap& attrib_map_0,
const ShaderTranslator::VariableMap& uniform_map_0,
const ShaderTranslator::VariableMap& varying_map_0,
const char* shader_1_hash,
const ShaderTranslator::VariableMap& attrib_map_1,
const ShaderTranslator::VariableMap& uniform_map_1,
const ShaderTranslator::VariableMap& varying_map_1,
MemoryProgramCache* program_cache);
GLsizei length() const {
return length_;
}
GLenum format() const {
return format_;
}
const char* data() const {
return data_.get();
}
const std::string& shader_0_hash() const {
return shader_0_hash_;
}
const ShaderTranslator::VariableMap& attrib_map_0() const {
return attrib_map_0_;
}
const ShaderTranslator::VariableMap& uniform_map_0() const {
return uniform_map_0_;
}
const ShaderTranslator::VariableMap& varying_map_0() const {
return varying_map_0_;
}
const std::string& shader_1_hash() const {
return shader_1_hash_;
}
const ShaderTranslator::VariableMap& attrib_map_1() const {
return attrib_map_1_;
}
const ShaderTranslator::VariableMap& uniform_map_1() const {
return uniform_map_1_;
}
const ShaderTranslator::VariableMap& varying_map_1() const {
return varying_map_1_;
}
private:
friend class base::RefCounted<ProgramCacheValue>;
~ProgramCacheValue();
const GLsizei length_;
const GLenum format_;
const scoped_ptr<const char[]> data_;
const std::string program_hash_;
const std::string shader_0_hash_;
const ShaderTranslator::VariableMap attrib_map_0_;
const ShaderTranslator::VariableMap uniform_map_0_;
const ShaderTranslator::VariableMap varying_map_0_;
const std::string shader_1_hash_;
const ShaderTranslator::VariableMap attrib_map_1_;
const ShaderTranslator::VariableMap uniform_map_1_;
const ShaderTranslator::VariableMap varying_map_1_;
MemoryProgramCache* const program_cache_;
DISALLOW_COPY_AND_ASSIGN(ProgramCacheValue);
};
friend class ProgramCacheValue;
typedef base::MRUCache<std::string,
scoped_refptr<ProgramCacheValue> > ProgramMRUCache;
const size_t max_size_bytes_;
size_t curr_size_bytes_;
ProgramMRUCache store_;
DISALLOW_COPY_AND_ASSIGN(MemoryProgramCache);
};
} // namespace gles2
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_MEMORY_PROGRAM_CACHE_H_
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