dlist-edgeflag-dangling.c revision 32001f49 
1/*
2 * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc.
3 *
4 * Permission to use, copy, modify, distribute, and sell this software and
5 * its documentation for any purpose is hereby granted without fee, provided
6 * that (i) the above copyright notices and this permission notice appear in
7 * all copies of the software and related documentation, and (ii) the name of
8 * Silicon Graphics may not be used in any advertising or
9 * publicity relating to the software without the specific, prior written
10 * permission of Silicon Graphics.
11 *
12 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF
13 * ANY KIND,
14 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
15 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
16 *
17 * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR
18 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
19 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
20 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
21 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
22 * OF THIS SOFTWARE.
23 */
24
25#include <stdio.h>
26#include <string.h>
27#include <stdlib.h>
28#include "glut_wrap.h"
29
30
31#define CI_OFFSET_1 16
32#define CI_OFFSET_2 32
33
34
35GLenum doubleBuffer;
36GLint list;
37
38static void Init(void)
39{
40   fprintf(stderr, "GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
41   fprintf(stderr, "GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
42   fprintf(stderr, "GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
43   fflush(stderr);
44
45   glClearColor(0.0, 0.0, 1.0, 0.0);
46
47   glPolygonMode(GL_FRONT, GL_LINE);
48   glPolygonMode(GL_BACK, GL_POINT);
49
50   list = glGenLists(1);
51   glNewList(list, GL_COMPILE);
52   glBegin(GL_TRIANGLES);
53   glVertex3f( 0.9, -0.9, -30.0);
54   glEdgeFlag(1);
55   glVertex3f( 0.9,  0.9, -30.0);
56   glVertex3f(-0.9,  0.0, -30.0);
57   glEnd();
58   glEndList();
59}
60
61static void Reshape(int width, int height)
62{
63
64    glViewport(0, 0, (GLint)width, (GLint)height);
65
66    glMatrixMode(GL_PROJECTION);
67    glLoadIdentity();
68    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
69    glMatrixMode(GL_MODELVIEW);
70}
71
72static void Key(unsigned char key, int x, int y)
73{
74
75    switch (key) {
76      case 27:
77	exit(1);
78      default:
79	break;
80    }
81
82    glutPostRedisplay();
83}
84
85
86
87
88static void Draw(void)
89{
90   glClear(GL_COLOR_BUFFER_BIT);
91
92   glPushMatrix();
93   glColor3f(0,.9,0);
94   glEdgeFlag(0);
95   glCallList(list);
96
97   glRotatef(45,0,0,1);
98   glColor3f(1,0,1);
99   glCallList(list);
100   glPopMatrix();
101
102   glFlush();
103
104   if (doubleBuffer) {
105      glutSwapBuffers();
106   }
107}
108
109static GLenum Args(int argc, char **argv)
110{
111    GLint i;
112
113    doubleBuffer = GL_FALSE;
114
115    for (i = 1; i < argc; i++) {
116        if (strcmp(argv[i], "-sb") == 0) {
117	    doubleBuffer = GL_FALSE;
118	} else if (strcmp(argv[i], "-db") == 0) {
119	    doubleBuffer = GL_TRUE;
120	} else {
121	    fprintf(stderr, "%s (Bad option).\n", argv[i]);
122	    return GL_FALSE;
123	}
124    }
125    return GL_TRUE;
126}
127
128int main(int argc, char **argv)
129{
130    GLenum type;
131
132    glutInit(&argc, argv);
133
134    if (Args(argc, argv) == GL_FALSE) {
135	exit(1);
136    }
137
138    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
139
140    type = GLUT_RGB | GLUT_ALPHA;
141    type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
142    glutInitDisplayMode(type);
143
144    if (glutCreateWindow(*argv) == GL_FALSE) {
145	exit(1);
146    }
147
148    Init();
149
150    glutReshapeFunc(Reshape);
151    glutKeyboardFunc(Key);
152    glutDisplayFunc(Draw);
153    glutMainLoop();
154	return 0;
155}
156