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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
#ifndef _GLTexture_H_
#define _GLTexture_H_
#include "../api.h"
#include "Bitmap.h"
#include "OGLHelper.h"
#include <boost/shared_ptr.hpp>
namespace avg {
class TextureMover;
typedef boost::shared_ptr<TextureMover> TextureMoverPtr;
class GLContext;
class AVG_API GLTexture {
public:
GLTexture(const IntPoint& size, PixelFormat pf, bool bMipmap=false,
int potBorderColor=0, unsigned wrapSMode=GL_CLAMP_TO_EDGE,
unsigned wrapTMode=GL_CLAMP_TO_EDGE, bool bForcePOT=false);
GLTexture(unsigned glTexID, const IntPoint& size, PixelFormat pf, bool bMipmap=false,
bool bDeleteTex=false);
virtual ~GLTexture();
void activate(int textureUnit=GL_TEXTURE0);
void generateMipmaps();
void setWrapMode(unsigned wrapSMode, unsigned wrapTMode);
void enableStreaming();
BitmapPtr lockStreamingBmp();
void unlockStreamingBmp(bool bUpdated);
void moveBmpToTexture(BitmapPtr pBmp);
BitmapPtr moveTextureToBmp(int mipmapLevel=0);
const IntPoint& getSize() const;
const IntPoint& getGLSize() const;
PixelFormat getPF() const;
unsigned getID() const;
IntPoint getMipmapSize(int level) const;
static bool isFloatFormatSupported();
static int getGLFormat(PixelFormat pf);
static int getGLType(PixelFormat pf);
int getGLInternalFormat() const;
void setDirty();
bool isDirty() const;
void resetDirty();
void dump(unsigned wrapSMode=-1, unsigned wrapTMode=-1) const;
private:
IntPoint m_Size;
IntPoint m_GLSize;
PixelFormat m_pf;
bool m_bMipmap;
bool m_bDeleteTex;
bool m_bUsePOT;
static unsigned s_LastTexID;
unsigned m_TexID;
bool m_bIsDirty;
TextureMoverPtr m_pMover;
GLContext* m_pGLContext;
};
typedef boost::shared_ptr<GLTexture> GLTexturePtr;
}
#endif
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