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      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 UI_GL_GL_IMAGE_SHM_H_
      6 #define UI_GL_GL_IMAGE_SHM_H_
      7 
      8 #include "base/memory/scoped_ptr.h"
      9 #include "ui/gl/gl_bindings.h"
     10 #include "ui/gl/gl_image.h"
     11 
     12 namespace gfx {
     13 
     14 class GL_EXPORT GLImageShm : public GLImage {
     15  public:
     16   GLImageShm(gfx::Size size, unsigned internalformat);
     17 
     18   bool Initialize(gfx::GpuMemoryBufferHandle buffer);
     19 
     20   // Overridden from GLImage:
     21   virtual void Destroy() OVERRIDE;
     22   virtual gfx::Size GetSize() OVERRIDE;
     23   virtual bool BindTexImage(unsigned target) OVERRIDE;
     24   virtual void ReleaseTexImage(unsigned target) OVERRIDE {}
     25   virtual void WillUseTexImage() OVERRIDE {}
     26   virtual void DidUseTexImage() OVERRIDE {}
     27   virtual void WillModifyTexImage() OVERRIDE {}
     28   virtual void DidModifyTexImage() OVERRIDE {}
     29 
     30  protected:
     31   virtual ~GLImageShm();
     32 
     33  private:
     34   scoped_ptr<base::SharedMemory> shared_memory_;
     35   gfx::Size size_;
     36   unsigned internalformat_;
     37 #if defined(OS_WIN) || defined(USE_X11) || defined(OS_ANDROID) || \
     38     defined(USE_OZONE)
     39   GLuint egl_texture_id_;
     40   EGLImageKHR egl_image_;
     41 #endif
     42 
     43   DISALLOW_COPY_AND_ASSIGN(GLImageShm);
     44 };
     45 
     46 }  // namespace gfx
     47 
     48 #endif  // UI_GL_GL_IMAGE_SHM_H_
     49