109 lines
3.3 KiB
C
109 lines
3.3 KiB
C
/* $Id: tess.h,v 1.2 1999/09/10 02:03:31 gareth Exp $ */
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/*
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* Mesa 3-D graphics library
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* Version: 3.1
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*
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* Copyright (C) 1999 Brian Paul All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*****************************************************************************
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*
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* GLU 1.3 Polygon Tessellation by Gareth Hughes <garethh@lucent.com>
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*
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*****************************************************************************/
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#ifndef __GLU_TESS_H__
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#define __GLU_TESS_H__
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#include <stdarg.h>
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#include <stdio.h>
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#include "gluP.h"
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#include "tess_typedefs.h"
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#include "tess_heap.h"
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#if 0
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#include "tess_grid.h"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*****************************************************************************
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* The GLUtesselator structure:
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*****************************************************************************/
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struct GLUtesselator
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{
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tess_callbacks_t callbacks;
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GLboolean boundary_only;
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GLenum winding_rule;
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GLdouble tolerance;
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tess_plane_t plane;
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GLuint contour_count;
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tess_contour_t *contours, *last_contour;
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tess_contour_t *current_contour;
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GLdouble mins[2], maxs[2];
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GLuint vertex_count;
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tess_vertex_t **sorted_vertices;
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#if 0
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tess_grid_t *grid; /* Not currently used... */
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#endif
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heap_t *heap;
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GLenum error;
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};
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/*****************************************************************************
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* Tessellation error handler:
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*****************************************************************************/
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extern void tess_error_callback( GLUtesselator *, GLenum, void * );
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/*****************************************************************************
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* Debugging output: (to be removed...)
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*****************************************************************************/
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extern int tess_debug_level;
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int vdebugstr( char *format_str, ... );
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#ifdef _DEBUG
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#define DEBUGP(level, body) \
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do { \
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if ( tess_debug_level >= level ) { \
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vdebugstr( "%11.11s:%-5d ", __FILE__, __LINE__, level ); \
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vdebugstr body; \
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fflush ( stderr ); \
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} \
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} while ( 0 )
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#define DEBUGIF(level) do { if ( tess_debug_level >= level ) {
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#define DEBUGENDIF } } while ( 0 )
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#else
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#define DEBUGP(level, body)
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#define DEBUGIF(level) while(0) {
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#define DEBUGENDIF }
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif // __GLU_TESS_H__
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