/* Id: matrix.h,v 1.2 1999/02/26 08:52:35 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: matrix.h,v $
 * Revision 1.2  1999/02/26 08:52:35  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 3.3  1999/02/14 03:46:34  brianp
 * new copyright
 *
 * Revision 3.2  1998/10/29 02:28:13  brianp
 * incorporated Keith Whitwell's transformation optimizations
 *
 * Revision 3.1  1998/08/23 22:18:18  brianp
 * added Driver.Viewport and Driver.DepthRange function pointers
 *
 * Revision 3.0  1998/01/31 20:58:46  brianp
 * initial rev
 *
 */


#ifndef MATRIX_H
#define MATRIX_H


#include "types.h"



extern void gl_rotation_matrix( GLfloat angle, GLfloat x, GLfloat y, GLfloat z,
                                GLfloat m[] );



extern void gl_Frustum( GLcontext *ctx,
                        GLdouble left, GLdouble right,
                        GLdouble bottom, GLdouble top,
                        GLdouble nearval, GLdouble farval );

extern void gl_Ortho( GLcontext *ctx,
                      GLdouble left, GLdouble right,
                      GLdouble bottom, GLdouble top,
                      GLdouble nearval, GLdouble farval );

extern void gl_PushMatrix( GLcontext *ctx );

extern void gl_PopMatrix( GLcontext *ctx );

extern void gl_LoadIdentity( GLcontext *ctx );

extern void gl_LoadMatrixf( GLcontext *ctx, const GLfloat *m );

extern void gl_MatrixMode( GLcontext *ctx, GLenum mode );

extern void gl_MultMatrixf( GLcontext *ctx, const GLfloat *m );

extern void gl_MultMatrixf_flags( GLcontext *ctx, const GLfloat *m, 
				  GLuint flags );

extern void gl_Rotatef( GLcontext *ctx,
                        GLfloat angle, GLfloat x, GLfloat y, GLfloat z );

extern void gl_Scalef( GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z );

extern void gl_Translatef( GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z );

extern void gl_Viewport( GLcontext *ctx,
                         GLint x, GLint y, GLsizei width, GLsizei height );

extern void gl_DepthRange( GLcontext* ctx, GLclampd nearval, GLclampd farval );





extern void gl_calculate_model_project_matrix( GLcontext *ctx );


extern void gl_matrix_ctr( GLmatrix *m );

extern void gl_matrix_dtr( GLmatrix *m );

extern void gl_matrix_alloc_inv( GLmatrix *m );

extern void gl_matrix_copy( GLmatrix *to, const GLmatrix *from );

extern void gl_matrix_mul( GLmatrix *dest, 
			   const GLmatrix *a, 
			   const GLmatrix *b );

extern void gl_matrix_analyze( GLmatrix *mat );



#endif