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/*
$Id: texture.h,v 1.14 2001/12/11 21:12:06 japj Exp $
------------------------------------------------------------------------
ClanLib, the platform independent game SDK.
This library is distributed under the GNU LIBRARY GENERAL PUBLIC LICENSE
version 2. See COPYING for details.
For a total list of contributers see CREDITS.
See http://www.clanlib.org
------------------------------------------------------------------------
*/
//! clanGL="OpenGL"
//! header=gl.h
#ifndef header_texture
#define header_texture
class CL_SurfaceProvider;
class CL_ResourceManager;
class CL_DisplayCard;
#include <string>
//: Texture loading class for OpenGL.
//- <p>This class can load the image(s) from surface provider into OpenGL
//- textures.</p>
//-
//- <p>This class works just like a CL_Surface, except that it
//- requires the image width to be 2^n.</p>
class CL_Texture
{
public:
//! Construction:
//: Creates a texture from a surface provider.
//- provider - Surface provider to use as image source.
//- delete_provider - If true, surface provider will be deleted
//- when the texture is deleted.
static CL_Texture *create(CL_SurfaceProvider *provider, bool delete_provider=false);
//: Load the texture from a surface resource.
//- id - Resource ID of the surface resource.
//- manager - Resource manager used to load the resource from.
static CL_Texture *load(const std::string &id, CL_ResourceManager *manager);
//: Texture Destructor
virtual ~CL_Texture() { ; }
//! Attributes:
//: Returns the surface provider.
virtual CL_SurfaceProvider *get_provider() const = 0;
//: Forces surface to reload texture data from provider.
virtual void reload() = 0;
//: Returns the width of the surface
//- Returns - Width of the texture.
virtual int get_width() const = 0;
//: Returns the height of the texture
//- Returns - Height of the texture.
virtual int get_height() const = 0;
//: Returns the number of subtextures in the texture
//- Returns - Number of subtextures in texture.
virtual int get_num_frames() const = 0;
//! Operations:
//: Bind the texture in OpenGL.
//- texture_no - Subframe in the provider to bind.
virtual void bind(int texture_no=0) = 0;
//: completely flushes textures (removes from video/system-memory)
virtual void flush(CL_DisplayCard *card = NULL) = 0;
};
#endif
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