/* Id: texstate.h,v 1.2 1999/02/26 08:52:38 martin Exp $ */

/*
 * Mesa 3-D graphics library
 * Version:  3.1
 * 
 * Copyright (C) 1999  Brian Paul   All Rights Reserved.
 * 
 * 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
 * BRIAN PAUL 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.
 */


/*
 * Log: texstate.h,v $
 * Revision 1.2  1999/02/26 08:52:38  martin
 * Updated Mesa to the official version checked into the Mesa cvs archive
 * Cleaned up the XMesa interface
 * Fixed support for standalone Mesa
 * Removed several unused files in the lib/GL/mesa/src subdirectory
 * Moved glcore.h back to include/GL/internal/glcore.h
 *
 * Revision 3.5  1999/02/14 03:46:34  brianp
 * new copyright
 *
 * Revision 3.4  1998/11/03 01:40:37  brianp
 * implemented GL_ARB_multitexture
 *
 * Revision 3.3  1998/08/21 01:50:01  brianp
 * added gl_max_texture_coord_sets()
 *
 * Revision 3.2  1998/06/07 22:18:52  brianp
 * implemented GL_EXT_multitexture extension
 *
 * Revision 3.1  1998/02/20 04:53:37  brianp
 * implemented GL_SGIS_multitexture
 *
 * Revision 3.0  1998/01/31 21:04:38  brianp
 * initial rev
 *
 */


#ifndef TEXSTATE_H
#define TEXSTATE_H


#include "types.h"


/*** Called from API ***/

extern void gl_GetTexEnvfv( GLcontext *ctx,
                            GLenum target, GLenum pname, GLfloat *params );

extern void gl_GetTexEnviv( GLcontext *ctx,
                            GLenum target, GLenum pname, GLint *params );

extern void gl_GetTexGendv( GLcontext *ctx,
                            GLenum coord, GLenum pname, GLdouble *params );

extern void gl_GetTexGenfv( GLcontext *ctx,
                            GLenum coord, GLenum pname, GLfloat *params );

extern void gl_GetTexGeniv( GLcontext *ctx,
                            GLenum coord, GLenum pname, GLint *params );

extern void gl_GetTexLevelParameterfv( GLcontext *ctx,
                                       GLenum target, GLint level,
                                       GLenum pname, GLfloat *params );

extern void gl_GetTexLevelParameteriv( GLcontext *ctx,
                                       GLenum target, GLint level,
                                       GLenum pname, GLint *params );

extern void gl_GetTexParameterfv( GLcontext *ctx, GLenum target,
                                  GLenum pname, GLfloat *params );

extern void gl_GetTexParameteriv( GLcontext *ctx,
                                  GLenum target, GLenum pname, GLint *params );


extern void gl_TexEnvfv( GLcontext *ctx,
                         GLenum target, GLenum pname, const GLfloat *param );


extern void gl_TexParameterfv( GLcontext *ctx, GLenum target, GLenum pname,
                               const GLfloat *params );


extern void gl_TexGenfv( GLcontext *ctx,
                         GLenum coord, GLenum pname, const GLfloat *params );


/*
 * GL_SGIS_multitexture
 */

extern void gl_SelectTextureSGIS( GLcontext *ctx, GLenum target );

extern void gl_SelectTexture( GLcontext *ctx, GLenum target );

extern void gl_SelectTextureCoordSet( GLcontext *ctx, GLenum target );

extern void gl_SelectTextureTransform( GLcontext *ctx, GLenum target );


/*
 * GL_ARB_multitexture
 */
extern void gl_ActiveTexture( GLcontext *ctx, GLenum target );

extern void gl_ClientActiveTexture( GLcontext *ctx, GLenum target );



/*** Internal functions ***/

extern void gl_update_texture_state( GLcontext *ctx );

extern GLint gl_max_texture_coord_sets( const GLcontext *ctx );


#endif