diff options
Diffstat (limited to 'src/glu/mesa/tess.h')
| -rw-r--r-- | src/glu/mesa/tess.h | 185 |
1 files changed, 86 insertions, 99 deletions
diff --git a/src/glu/mesa/tess.h b/src/glu/mesa/tess.h index 53d673ccbea..fe8296c976c 100644 --- a/src/glu/mesa/tess.h +++ b/src/glu/mesa/tess.h @@ -1,121 +1,108 @@ -/* $Id: tess.h,v 1.1 1999/08/19 00:55:42 jtg Exp $ */ +/* $Id: tess.h,v 1.2 1999/09/10 02:03:31 gareth Exp $ */ /* * Mesa 3-D graphics library * Version: 3.1 - * Copyright (C) 1995-1998 Brian Paul - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library 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 - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the Free - * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * 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: tess.h,v $ - * Revision 1.1 1999/08/19 00:55:42 jtg - * Initial revision - * - * Revision 1.5 1999/02/27 13:55:31 brianp - * fixed BeOS-related GLU typedef problems - * - * Revision 1.4 1999/01/03 03:23:15 brianp - * now using GLAPIENTRY and GLCALLBACK keywords (Ted Jump) - * - * Revision 1.3 1997/10/29 02:02:20 brianp - * various MS Windows compiler changes (David Bucciarelli, v20 3dfx driver) +/***************************************************************************** * - * Revision 1.2 1997/05/24 13:30:58 brianp - * added TESS_H multi-inclusion prevention test + * GLU 1.3 Polygon Tessellation by Gareth Hughes <[email protected]> * - * Revision 1.1 1996/09/27 01:19:39 brianp - * Initial revision - * - */ - - -/* - * This file is part of the polygon tesselation code contributed by - * Bogdan Sikorski - */ - + *****************************************************************************/ -#ifndef TESS_H -#define TESS_H +#ifndef __GLU_TESS_H__ +#define __GLU_TESS_H__ +#include <stdarg.h> +#include <stdio.h> #include "gluP.h" -#define EPSILON 1e-06 /* epsilon for double precision compares */ - -typedef enum -{ - OXY, - OYZ, - OXZ -} projection_type; - -typedef struct callbacks_str -{ - void (GLCALLBACK *begin)( GLenum mode ); - void (GLCALLBACK *edgeFlag)( GLboolean flag ); - void (GLCALLBACK *vertex)( GLvoid *v ); - void (GLCALLBACK *end)( void ); - void (GLCALLBACK *error)( GLenum err ); -} tess_callbacks; - -typedef struct vertex_str -{ - void *data; - GLdouble location[3]; - GLdouble x,y; - GLboolean edge_flag; - struct vertex_str *shadow_vertex; - struct vertex_str *next,*previous; -} tess_vertex; - -typedef struct contour_str -{ - GLenum type; - GLuint vertex_cnt; - GLdouble area; - GLenum orientation; - struct vertex_str *vertices,*last_vertex; - struct contour_str *next,*previous; -} tess_contour; +#include "tess_typedefs.h" +#include "tess_heap.h" +#if 0 +#include "tess_grid.h" +#endif -typedef struct polygon_str -{ - GLuint vertex_cnt; - GLdouble A,B,C,D; - GLdouble area; - GLenum orientation; - struct vertex_str *vertices,*last_vertex; -} tess_polygon; +#ifdef __cplusplus +extern "C" { +#endif +/***************************************************************************** + * The GLUtesselator structure: + *****************************************************************************/ struct GLUtesselator { - tess_contour *contours,*last_contour; - GLuint contour_cnt; - tess_callbacks callbacks; - tess_polygon *current_polygon; - GLenum error; - GLdouble A,B,C,D; - projection_type projection; + tess_callbacks_t callbacks; + GLboolean boundary_only; + GLenum winding_rule; + GLdouble tolerance; + tess_plane_t plane; + GLuint contour_count; + tess_contour_t *contours, *last_contour; + tess_contour_t *current_contour; + GLdouble mins[2], maxs[2]; + GLuint vertex_count; + tess_vertex_t **sorted_vertices; +#if 0 + tess_grid_t *grid; /* Not currently used... */ +#endif + heap_t *heap; + GLenum error; }; -extern void tess_call_user_error(GLUtriangulatorObj *,GLenum); - +/***************************************************************************** + * Tessellation error handler: + *****************************************************************************/ +extern void tess_error_callback( GLUtesselator *, GLenum, void * ); + + +/***************************************************************************** + * Debugging output: (to be removed...) + *****************************************************************************/ +extern int tess_debug_level; +int vdebugstr( char *format_str, ... ); + +#ifdef _DEBUG +#define DEBUGP(level, body) \ + do { \ + if ( tess_debug_level >= level ) { \ + vdebugstr( "%11.11s:%-5d ", __FILE__, __LINE__, level ); \ + vdebugstr body; \ + fflush ( stderr ); \ + } \ + } while ( 0 ) +#define DEBUGIF(level) do { if ( tess_debug_level >= level ) { +#define DEBUGENDIF } } while ( 0 ) +#else +#define DEBUGP(level, body) +#define DEBUGIF(level) while(0) { +#define DEBUGENDIF } +#endif +#ifdef __cplusplus +} #endif + +#endif // __GLU_TESS_H__ |