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//
// Copyright (c) 2002-2012 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Image.h: Defines the rx::Image class, an abstract base class for the
// renderer-specific classes which will define the interface to the underlying
// surfaces or resources.
#ifndef LIBANGLE_RENDERER_IMAGE_H_
#define LIBANGLE_RENDERER_IMAGE_H_
#include "common/debug.h"
#include "libANGLE/Error.h"
#include <GLES2/gl2.h>
namespace gl
{
class Framebuffer;
struct Rectangle;
struct Extents;
struct Box;
struct Offset;
struct ImageIndex;
}
namespace rx
{
class RendererD3D;
class RenderTarget;
class TextureStorage;
class Image
{
public:
Image();
virtual ~Image() {};
GLsizei getWidth() const { return mWidth; }
GLsizei getHeight() const { return mHeight; }
GLsizei getDepth() const { return mDepth; }
GLenum getInternalFormat() const { return mInternalFormat; }
GLenum getTarget() const { return mTarget; }
bool isRenderableFormat() const { return mRenderable; }
void markDirty() {mDirty = true;}
void markClean() {mDirty = false;}
virtual bool isDirty() const = 0;
virtual bool redefine(GLenum target, GLenum internalformat, const gl::Extents &size, bool forceRelease) = 0;
virtual gl::Error loadData(const gl::Box &area, GLint unpackAlignment, GLenum type, const void *input) = 0;
virtual gl::Error loadCompressedData(const gl::Box &area, const void *input) = 0;
virtual gl::Error copy(const gl::Offset &destOffset, const gl::Rectangle &sourceArea, const gl::Framebuffer *source) = 0;
virtual gl::Error copy(const gl::Offset &destOffset, const gl::Box &sourceArea,
const gl::ImageIndex &sourceIndex, TextureStorage *source) = 0;
protected:
GLsizei mWidth;
GLsizei mHeight;
GLsizei mDepth;
GLenum mInternalFormat;
bool mRenderable;
GLenum mTarget;
bool mDirty;
private:
DISALLOW_COPY_AND_ASSIGN(Image);
};
}
#endif // LIBANGLE_RENDERER_IMAGE_H_
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