ui/gl/gl_image.h

   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 #ifndef UI_GL_GL_IMAGE_H_
   6 #define UI_GL_GL_IMAGE_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "ui/gfx/native_widget_types.h"
  10 #include "ui/gfx/size.h"
  11 #include "ui/gl/gl_export.h"
  12
  13 namespace gfx {
  14
  15 class GLSurface;
  16
  17 // Encapsulates an image that can be bound to a texture, hiding platform
  18 // specific management.
  19 class GL_EXPORT GLImage : public base::RefCounted<GLImage> {
  20  public:
  21   GLImage();
  22
  23   // Destroys the image.
  24   virtual void Destroy() = 0;
  25
  26   // Get the size of the image.
  27   virtual gfx::Size GetSize() = 0;
  28
  29   // Bind image to texture currently bound to GL_TEXTURE_2D target.
  30   virtual bool BindTexImage();
  31
  32   // Release image from texture currently bound to GL_TEXTURE_2D target.
  33   virtual void ReleaseTexImage();
  34
  35   // Create a GL image for a window.
  36   static scoped_refptr<GLImage> CreateGLImage(gfx::PluginWindowHandle window);
  37
  38   // Create a GL image for a GPU Memory buffer.
  39   static scoped_refptr<GLImage> CreateGLImageForGpuMemoryBuffer(
  40       gfx::GpuMemoryBufferHandle buffer, gfx::Size size);
  41
  42  protected:
  43   virtual ~GLImage();
  44
  45  private:
  46   friend class base::RefCounted<GLImage>;
  47
  48   DISALLOW_COPY_AND_ASSIGN(GLImage);
  49 };
  50
  51 }  // namespace gfx
  52
  53 #endif  // UI_GL_GL_IMAGE_H_