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gpu / ipc / service / built_in_shader_cache_writer.h [blame]
// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GPU_IPC_SERVICE_BUILT_IN_SHADER_CACHE_WRITER_H_
#define GPU_IPC_SERVICE_BUILT_IN_SHADER_CACHE_WRITER_H_
#include "base/files/file.h"
#include "gpu/command_buffer/service/passthrough_program_cache.h"
#include "gpu/ipc/service/gpu_ipc_service_export.h"
namespace base {
class FilePath;
}
namespace gpu {
// Used to write the shader cache to disk. Generating the shader libraries
// requires executing command line programs and is slow. Because of this,
// writing the shaders is done as part of the build process. That is, a script
// runs chrome with a set of command line arguments that results in this class
// being used.
//
// As the gpu process does not cleanly shutdown, this writes as it's going.
class GPU_IPC_SERVICE_EXPORT BuiltInShaderCacheWriter
: public gles2::PassthroughProgramCache::ValueAddedHook {
public:
// Written to beginning of file to ensure file was created by this code.
static const uint32_t kSignature;
explicit BuiltInShaderCacheWriter(
const base::FilePath& path = base::FilePath());
~BuiltInShaderCacheWriter() override;
void OnValueAddedToCache(const std::vector<uint8_t>& key,
const std::vector<uint8_t>& value) override;
private:
bool WriteVectorToFile(const std::vector<uint8_t>& key);
base::File file_;
// Set to false if an an error is encountered when writing.
bool valid_file_ = false;
// Number of entries added.
int add_count_ = 0;
};
} // namespace gpu
#endif // GPU_IPC_SERVICE_BUILT_IN_SHADER_CACHE_WRITER_H_