pcsx2/plugins/GSdx/Renderers/Common/GSTexture.h

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/*
* Copyright (C) 2007-2009 Gabest
* http://www.gabest.org
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#pragma once
#include "GSVector.h"
class GSTexture
{
protected:
GSVector2 m_scale;
GSVector2i m_size;
int m_type;
int m_format;
bool m_msaa;
public:
struct GSMap {uint8* bits; int pitch;};
enum {RenderTarget = 1, DepthStencil, Texture, Offscreen, Backbuffer};
public:
GSTexture();
virtual ~GSTexture() {}
virtual operator bool() {ASSERT(0); return false;}
virtual bool Update(const GSVector4i& r, const void* data, int pitch, int layer = 0) = 0;
virtual bool Map(GSMap& m, const GSVector4i* r = NULL, int layer = 0) = 0;
virtual void Unmap() = 0;
virtual void GenerateMipmap() {}
virtual bool Save(const std::string& fn, bool dds = false) = 0;
virtual uint32 GetID() { return 0; }
GSVector2 GetScale() const {return m_scale;}
void SetScale(const GSVector2& scale) {m_scale = scale;}
int GetWidth() const {return m_size.x;}
int GetHeight() const {return m_size.y;}
GSVector2i GetSize() const {return m_size;}
int GetType() const {return m_type;}
int GetFormat() const {return m_format;}
bool IsMSAA() const {return m_msaa;}
// frame number (arbitrary base) the texture was recycled on
// different purpose than texture cache ages, do not attempt to merge
unsigned last_frame_used;
bool LikelyOffset;
float OffsetHack_modx;
float OffsetHack_mody;
// Typical size of a RGBA texture
virtual uint32 GetMemUsage() { return m_size.x * m_size.y * 4; }
};