gpu/command_buffer/service/gpu_state_tracer.h

   1 // Copyright 2013 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 #ifndef GPU_COMMAND_BUFFER_SERVICE_GPU_STATE_TRACER_H_
   6 #define GPU_COMMAND_BUFFER_SERVICE_GPU_STATE_TRACER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10
  11 namespace gfx {
  12 class Size;
  13 }
  14
  15 namespace gpu {
  16 namespace gles2 {
  17
  18 struct ContextState;
  19
  20 // Saves GPU state such as framebuffer contents while tracing.
  21 class GPUStateTracer {
  22  public:
  23   static scoped_ptr<GPUStateTracer> Create(const ContextState* state);
  24   ~GPUStateTracer();
  25
  26   // Take a state snapshot with a screenshot of the currently bound framebuffer.
  27   void TakeSnapshotWithCurrentFramebuffer(const gfx::Size& size);
  28
  29  private:
  30   explicit GPUStateTracer(const ContextState* state);
  31
  32   const ContextState* state_;
  33   DISALLOW_COPY_AND_ASSIGN(GPUStateTracer);
  34 };
  35
  36 }  // namespace gles2
  37 }  // namespace gpu
  38
  39 #endif  // GPU_COMMAND_BUFFER_SERVICE_GPU_STATE_TRACER_H_