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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GL_GL_IMAGE_H_
#define UI_GL_GL_IMAGE_H_
#include "base/memory/ref_counted.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/rect_f.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gfx/overlay_transform.h"
#include "ui/gl/gl_export.h"
namespace gfx {
// Encapsulates an image that can be bound to a texture, hiding platform
// specific management.
class GL_EXPORT GLImage : public base::RefCounted<GLImage> {
public:
GLImage() {}
// Destroys the image.
virtual void Destroy(bool have_context) = 0;
// Get the size of the image.
virtual gfx::Size GetSize() = 0;
// Bind image to texture currently bound to |target|.
virtual bool BindTexImage(unsigned target) = 0;
// Release image from texture currently bound to |target|.
virtual void ReleaseTexImage(unsigned target) = 0;
// Copy image to texture currently bound to |target|.
virtual bool CopyTexImage(unsigned target) = 0;
// Called before the texture is used for drawing.
virtual void WillUseTexImage() = 0;
// Called after the texture has been used for drawing.
virtual void DidUseTexImage() = 0;
// Called before the texture image data will be modified.
virtual void WillModifyTexImage() = 0;
// Called after the texture image data has been modified.
virtual void DidModifyTexImage() = 0;
// Schedule image as an overlay plane to be shown at swap time for |widget|.
virtual bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
int z_order,
OverlayTransform transform,
const Rect& bounds_rect,
const RectF& crop_rect) = 0;
protected:
virtual ~GLImage() {}
private:
friend class base::RefCounted<GLImage>;
DISALLOW_COPY_AND_ASSIGN(GLImage);
};
} // namespace gfx
#endif // UI_GL_GL_IMAGE_H_
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