Texture.h

/***********************************************************************
    created:  21/2/2004
    author:   Paul D Turner

    purpose: Defines abstract interface for texture objects.  Texture
             objects are created & destroyed by the Renderer.
*************************************************************************/
/***************************************************************************
 *   Copyright (C) 2004 - 2009 Paul D Turner & The CEGUI Development Team
 *
 *   Permission is hereby granted, free of charge, to any person obtaining
 *   a copy of this software and associated documentation files (the
 *   "Software"), to deal in the Software without restriction, including
 *   without limitation the rights to use, copy, modify, merge, publish,
 *   distribute, sublicense, and/or sell copies of the Software, and to
 *   permit persons to whom the Software is furnished to do so, subject to
 *   the following conditions:
 *
 *   The above copyright notice and this permission notice shall be
 *   included in all copies or substantial portions of the Software.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 *   IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 *   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 *   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *   OTHER DEALINGS IN THE SOFTWARE.
 ***************************************************************************/
#ifndef _CEGUITexture_h_
#define _CEGUITexture_h_

#include "CEGUI/Base.h"
#include "CEGUI/String.h"
#include "CEGUI/Size.h"
#include "CEGUI/Vector.h"
#include "CEGUI/Rect.h"

// Start of CEGUI namespace section
namespace CEGUI
{
class CEGUIEXPORT Texture :
    public AllocatedObject<Texture>
{
public:
    enum PixelFormat
    {
        PF_RGB,
        PF_RGBA,
        PF_RGBA_4444,
        PF_RGB_565,
        PF_PVRTC2,
        PF_PVRTC4,
        PF_RGB_DXT1,
        PF_RGBA_DXT1,
        PF_RGBA_DXT3,
        PF_RGBA_DXT5
    };

    virtual ~Texture() {}

    virtual const String& getName() const = 0;

    virtual const Sizef& getSize() const = 0;

    virtual const Sizef& getOriginalDataSize() const = 0;

    virtual const Vector2f& getTexelScaling() const = 0;

    virtual void loadFromFile(const String& filename,
                              const String& resourceGroup) = 0;

    virtual void loadFromMemory(const void* buffer,
                                const Sizef& buffer_size,
                                PixelFormat pixel_format) = 0;

    virtual void blitFromMemory(const void* sourceData, const Rectf& area) = 0;

    virtual void blitToMemory(void* targetData) = 0;

    virtual bool isPixelFormatSupported(const PixelFormat fmt) const = 0;
};

} // End of  CEGUI namespace section

#endif // end of guard _CEGUITexture_h_