File: gpu_state_tracer.h

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// Copyright 2013 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_COMMAND_BUFFER_SERVICE_GPU_STATE_TRACER_H_
#define GPU_COMMAND_BUFFER_SERVICE_GPU_STATE_TRACER_H_

#include <memory>

#include "base/memory/raw_ptr.h"

namespace gfx {
class Size;
}

namespace gpu {
namespace gles2 {

struct ContextState;

// Saves GPU state such as framebuffer contents while tracing.
class GPUStateTracer {
 public:
  static std::unique_ptr<GPUStateTracer> Create(const ContextState* state);

  GPUStateTracer(const GPUStateTracer&) = delete;
  GPUStateTracer& operator=(const GPUStateTracer&) = delete;

  ~GPUStateTracer();

  // Take a state snapshot with a screenshot of the currently bound framebuffer.
  void TakeSnapshotWithCurrentFramebuffer(const gfx::Size& size);

 private:
  explicit GPUStateTracer(const ContextState* state);

  raw_ptr<const ContextState> state_;
};

}  // namespace gles2
}  // namespace gpu

#endif  // GPU_COMMAND_BUFFER_SERVICE_GPU_STATE_TRACER_H_