diff options
author | Kristian Høgsberg <[email protected]> | 2010-02-25 16:20:03 -0500 |
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committer | Kristian Høgsberg <[email protected]> | 2010-02-25 17:40:11 -0500 |
commit | 44f78eb18e851892f72b41be4119cf8b14cddbbb (patch) | |
tree | 39b5a584e043354923dfcc887a7b28b2438f9a41 /src/glu/mesa/tess.c | |
parent | b15fe60ba568ff28de38dd0dc834fb9198650002 (diff) |
Remove unused mini and mesa glu subdirectories
Diffstat (limited to 'src/glu/mesa/tess.c')
-rw-r--r-- | src/glu/mesa/tess.c | 327 |
1 files changed, 0 insertions, 327 deletions
diff --git a/src/glu/mesa/tess.c b/src/glu/mesa/tess.c deleted file mode 100644 index 341d29bae3a..00000000000 --- a/src/glu/mesa/tess.c +++ /dev/null @@ -1,327 +0,0 @@ - -/* - * Mesa 3-D graphics library - * Version: 3.3 - * Copyright (C) 1995-2000 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. - */ - - -/* - * This file is part of the polygon tesselation code contributed by - * Bogdan Sikorski - */ - - -#ifdef PC_HEADER -#include "all.h" -#else -#include <math.h> -#include <stdlib.h> -#include "tess.h" -#endif - - -/* - * This is ugly, but seems the easiest way to do things to make the - * code work under YellowBox for Windows - */ -#if defined(OPENSTEP) && defined(CALLBACK) -#undef CALLBACK -#define CALLBACK -#endif - - -static void delete_contours(GLUtriangulatorObj *); - -#ifdef __CYGWIN32__ -#define _CALLBACK -#else -#define _CALLBACK GLCALLBACK -#endif - - -static void -init_callbacks(tess_callbacks * callbacks) -{ - callbacks->begin = (void (_CALLBACK *) (GLenum)) 0; - callbacks->edgeFlag = (void (_CALLBACK *) (GLboolean)) 0; - callbacks->vertex = (void (_CALLBACK *) (void *)) 0; - callbacks->end = (void (_CALLBACK *) (void)) 0; - callbacks->error = (void (_CALLBACK *) (GLenum)) 0; -} - -void -tess_call_user_error(GLUtriangulatorObj * tobj, GLenum gluerr) -{ - if (tobj->error == GLU_NO_ERROR) - tobj->error = gluerr; - if (tobj->callbacks.error != NULL) - (tobj->callbacks.error) (gluerr); -} - -GLUtriangulatorObj *GLAPIENTRY -gluNewTess(void) -{ - GLUtriangulatorObj *tobj; - - if ((tobj = (GLUtriangulatorObj *) - malloc(sizeof(struct GLUtesselator))) == NULL) - return NULL; - tobj->contours = tobj->last_contour = NULL; - init_callbacks(&tobj->callbacks); - tobj->error = GLU_NO_ERROR; - tobj->current_polygon = NULL; - tobj->contour_cnt = 0; - return tobj; -} - - -void GLAPIENTRY -gluTessCallback(GLUtriangulatorObj * tobj, GLenum which, - void (GLCALLBACK * fn) ()) -{ - switch (which) { - case GLU_BEGIN: - tobj->callbacks.begin = (void (_CALLBACK *) (GLenum)) fn; - break; - case GLU_EDGE_FLAG: - tobj->callbacks.edgeFlag = (void (_CALLBACK *) (GLboolean)) fn; - break; - case GLU_VERTEX: - tobj->callbacks.vertex = (void (_CALLBACK *) (void *)) fn; - break; - case GLU_END: - tobj->callbacks.end = (void (_CALLBACK *) (void)) fn; - break; - case GLU_ERROR: - tobj->callbacks.error = (void (_CALLBACK *) (GLenum)) fn; - break; - default: - tobj->error = GLU_INVALID_ENUM; - break; - } -} - - - -void GLAPIENTRY -gluDeleteTess(GLUtriangulatorObj * tobj) -{ - if (tobj->error == GLU_NO_ERROR && tobj->contour_cnt) - /* was gluEndPolygon called? */ - tess_call_user_error(tobj, GLU_TESS_ERROR1); - /* delete all internal structures */ - delete_contours(tobj); - free(tobj); -} - - -void GLAPIENTRY -gluBeginPolygon(GLUtriangulatorObj * tobj) -{ -/* - if(tobj->error!=GLU_NO_ERROR) - return; -*/ - tobj->error = GLU_NO_ERROR; - if (tobj->current_polygon != NULL) { - /* gluEndPolygon was not called */ - tess_call_user_error(tobj, GLU_TESS_ERROR1); - /* delete all internal structures */ - delete_contours(tobj); - } - else { - if ((tobj->current_polygon = - (tess_polygon *) malloc(sizeof(tess_polygon))) == NULL) { - tess_call_user_error(tobj, GLU_OUT_OF_MEMORY); - return; - } - tobj->current_polygon->vertex_cnt = 0; - tobj->current_polygon->vertices = - tobj->current_polygon->last_vertex = NULL; - } -} - - -void GLAPIENTRY -gluEndPolygon(GLUtriangulatorObj * tobj) -{ - /*tess_contour *contour_ptr; */ - - /* there was an error */ - if (tobj->error != GLU_NO_ERROR) - goto end; - - /* check if gluBeginPolygon was called */ - if (tobj->current_polygon == NULL) { - tess_call_user_error(tobj, GLU_TESS_ERROR2); - return; - } - tess_test_polygon(tobj); - /* there was an error */ - if (tobj->error != GLU_NO_ERROR) - goto end; - - /* any real contours? */ - if (tobj->contour_cnt == 0) { - /* delete all internal structures */ - delete_contours(tobj); - return; - } - tess_find_contour_hierarchies(tobj); - /* there was an error */ - if (tobj->error != GLU_NO_ERROR) - goto end; - - tess_handle_holes(tobj); - /* there was an error */ - if (tobj->error != GLU_NO_ERROR) - goto end; - - /* if no callbacks, nothing to do */ - if (tobj->callbacks.begin != NULL && tobj->callbacks.vertex != NULL && - tobj->callbacks.end != NULL) { - if (tobj->callbacks.edgeFlag == NULL) - tess_tesselate(tobj); - else - tess_tesselate_with_edge_flag(tobj); - } - - end: - /* delete all internal structures */ - delete_contours(tobj); -} - - -void GLAPIENTRY -gluNextContour(GLUtriangulatorObj * tobj, GLenum type) -{ - if (tobj->error != GLU_NO_ERROR) - return; - if (tobj->current_polygon == NULL) { - tess_call_user_error(tobj, GLU_TESS_ERROR2); - return; - } - /* first contour? */ - if (tobj->current_polygon->vertex_cnt) - tess_test_polygon(tobj); -} - - -void GLAPIENTRY -gluTessVertex(GLUtriangulatorObj * tobj, GLdouble v[3], void *data) -{ - tess_polygon *polygon = tobj->current_polygon; - tess_vertex *last_vertex_ptr; - - if (tobj->error != GLU_NO_ERROR) - return; - if (polygon == NULL) { - tess_call_user_error(tobj, GLU_TESS_ERROR2); - return; - } - last_vertex_ptr = polygon->last_vertex; - if (last_vertex_ptr == NULL) { - if ((last_vertex_ptr = (tess_vertex *) - malloc(sizeof(tess_vertex))) == NULL) { - tess_call_user_error(tobj, GLU_OUT_OF_MEMORY); - return; - } - polygon->vertices = last_vertex_ptr; - polygon->last_vertex = last_vertex_ptr; - last_vertex_ptr->data = data; - last_vertex_ptr->location[0] = v[0]; - last_vertex_ptr->location[1] = v[1]; - last_vertex_ptr->location[2] = v[2]; - last_vertex_ptr->next = NULL; - last_vertex_ptr->previous = NULL; - ++(polygon->vertex_cnt); - } - else { - tess_vertex *vertex_ptr; - - /* same point twice? */ - if (fabs(last_vertex_ptr->location[0] - v[0]) < EPSILON && - fabs(last_vertex_ptr->location[1] - v[1]) < EPSILON && - fabs(last_vertex_ptr->location[2] - v[2]) < EPSILON) { - tess_call_user_error(tobj, GLU_TESS_ERROR6); - return; - } - if ((vertex_ptr = (tess_vertex *) - malloc(sizeof(tess_vertex))) == NULL) { - tess_call_user_error(tobj, GLU_OUT_OF_MEMORY); - return; - } - vertex_ptr->data = data; - vertex_ptr->location[0] = v[0]; - vertex_ptr->location[1] = v[1]; - vertex_ptr->location[2] = v[2]; - vertex_ptr->next = NULL; - vertex_ptr->previous = last_vertex_ptr; - ++(polygon->vertex_cnt); - last_vertex_ptr->next = vertex_ptr; - polygon->last_vertex = vertex_ptr; - } -} - - -static void -delete_contours(GLUtriangulatorObj * tobj) -{ - tess_polygon *polygon = tobj->current_polygon; - tess_contour *contour, *contour_tmp; - tess_vertex *vertex, *vertex_tmp; - - /* remove current_polygon list - if exists due to detected error */ - if (polygon != NULL) { - if (polygon->vertices) { - for (vertex = polygon->vertices; vertex != polygon->last_vertex;) { - vertex_tmp = vertex->next; - free(vertex); - vertex = vertex_tmp; - } - free(vertex); - } - free(polygon); - tobj->current_polygon = NULL; - } - /* remove all contour data */ - for (contour = tobj->contours; contour != NULL;) { - for (vertex = contour->vertices; vertex != contour->last_vertex;) { - vertex_tmp = vertex->next; - free(vertex); - vertex = vertex_tmp; - } - free(vertex); - contour_tmp = contour->next; - free(contour); - contour = contour_tmp; - } - tobj->contours = tobj->last_contour = NULL; - tobj->contour_cnt = 0; -} - - -void GLAPIENTRY -gluTessNormal(GLUtesselator *tess, GLdouble valueX, GLdouble valueY, GLdouble valueZ) -{ - /* dummy function */ - (void) tess; - (void) valueX; - (void) valueY; - (void) valueZ; -} |