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      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 // This file contains the GLStateRestorerImpl class.
      6 
      7 #ifndef GPU_COMMAND_BUFFER_SERVICE_GL_STATE_RESTORER_IMPL_H_
      8 #define GPU_COMMAND_BUFFER_SERVICE_GL_STATE_RESTORER_IMPL_H_
      9 
     10 #include "base/compiler_specific.h"
     11 #include "base/memory/weak_ptr.h"
     12 #include "gpu/gpu_export.h"
     13 #include "ui/gl/gl_state_restorer.h"
     14 
     15 namespace gpu {
     16 namespace gles2 {
     17 class GLES2Decoder;
     18 }
     19 
     20 // This class implements a GLStateRestorer that forwards to a GLES2Decoder.
     21 class GPU_EXPORT GLStateRestorerImpl : public gfx::GLStateRestorer {
     22  public:
     23    explicit GLStateRestorerImpl(base::WeakPtr<gles2::GLES2Decoder> decoder);
     24    virtual ~GLStateRestorerImpl();
     25 
     26    virtual bool IsInitialized() OVERRIDE;
     27    virtual void RestoreState() OVERRIDE;
     28    virtual void RestoreAllTextureUnitBindings() OVERRIDE;
     29    virtual void RestoreFramebufferBindings() OVERRIDE;
     30 
     31  private:
     32    base::WeakPtr<gles2::GLES2Decoder> decoder_;
     33 
     34    DISALLOW_COPY_AND_ASSIGN(GLStateRestorerImpl);
     35 };
     36 
     37 }  // namespace gpu
     38 
     39 #endif  // GPU_COMMAND_BUFFER_SERVICE_GL_STATE_RESTORER_IMPL_H_
     40