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//
// Copyright (c) 2002-2013 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.
//
// TextureStorage.h: Defines the abstract rx::TextureStorage class.
#ifndef LIBGLESV2_RENDERER_TEXTURESTORAGE_H_
#define LIBGLESV2_RENDERER_TEXTURESTORAGE_H_
#include "common/debug.h"
#include <GLES2/gl2.h>
namespace gl
{
struct ImageIndex;
}
namespace rx
{
class Renderer;
class SwapChain;
class RenderTarget;
class TextureStorage
{
public:
TextureStorage();
virtual ~TextureStorage() {};
virtual int getTopLevel() const = 0;
virtual bool isRenderTarget() const = 0;
virtual bool isManaged() const = 0;
virtual int getLevelCount() const = 0;
virtual RenderTarget *getRenderTarget(const gl::ImageIndex &index) = 0;
virtual void generateMipmaps() = 0;
unsigned int getRenderTargetSerial(const gl::ImageIndex &index) const;
unsigned int getTextureSerial() const;
protected:
void initializeSerials(unsigned int rtSerialsToReserve, unsigned int rtSerialsLayerStride);
private:
DISALLOW_COPY_AND_ASSIGN(TextureStorage);
const unsigned int mTextureSerial;
static unsigned int issueTextureSerial();
static unsigned int mCurrentTextureSerial;
unsigned int mFirstRenderTargetSerial;
unsigned int mRenderTargetSerialsLayerStride;
};
}
#endif // LIBGLESV2_RENDERER_TEXTURESTORAGE_H_
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