src/trivial/tri-logicop-none.c

   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
  35 GLenum doubleBuffer = 1;
  36 int win;
  37
  38 static 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(0.3, 0.1, 0.3, 0.0);
  46 }
  47
  48 static void Reshape(int width, int height)
  49 {
  50
  51    glViewport(0, 0, (GLint)width, (GLint)height);
  52
  53    glMatrixMode(GL_PROJECTION);
  54    glLoadIdentity();
  55    glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
  56    glMatrixMode(GL_MODELVIEW);
  57 }
  58
  59 static void Key(unsigned char key, int x, int y)
  60 {
  61    switch (key) {
  62       case 27:
  63          exit(0);
  64       default:
  65          glutPostRedisplay();
  66          return;
  67    }
  68 }
  69
  70 static void Draw(void)
  71 {
  72    glClear(GL_COLOR_BUFFER_BIT);
  73
  74    glBegin(GL_TRIANGLES);
  75    glColor3f(.8,0,0);
  76    glVertex3f(-0.9, -0.9, -30.0);
  77    glColor3f(0,.9,0);
  78    glVertex3f( 0.9, -0.9, -30.0);
  79    glColor3f(0,0,.7);
  80    glVertex3f( 0.0,  0.9, -30.0);
  81    glEnd();
  82
  83
  84    glLineWidth(4.0);
  85
  86    glBegin(GL_LINES);
  87    glColor3f(.1,.7,.1);
  88    glVertex3f( 0.5, -0.5, -30.0);
  89    glVertex3f( 0.5,  0.5, -30.0);
  90
  91    glColor3f(.1,.1,.8);
  92    glVertex3f( 0.5,  0.5, -30.0);
  93    glVertex3f(-0.5,  0.5, -30.0);
  94
  95    glColor3f(.5,.1,.1);
  96    glVertex3f(-0.5,  0.5, -30.0);
  97    glVertex3f(-0.5, -0.5, -30.0);
  98
  99    glColor3f(.8,.8,.8);
 100    glVertex3f(-0.5, -0.5, -30.0);
 101    glVertex3f( 0.5, -0.5, -30.0);
 102    glEnd();
 103
 104    /* glLineWidth(12.0); */
 105
 106    /* Redraw parts of the lines:
 107     */
 108    glBegin(GL_LINES);
 109    glColor3f(.1,.7,.1);
 110    glVertex3f( 0.5, -0.2, -30.0);
 111    glVertex3f( 0.5,  0.2, -30.0);
 112
 113    glColor3f(.1,.1,.8);
 114    glVertex3f( 0.2,  0.5, -30.0);
 115    glVertex3f(-0.2,  0.5, -30.0);
 116
 117    glColor3f(.5,.1,.1);
 118    glVertex3f(-0.5,  0.2, -30.0);
 119    glVertex3f(-0.5, -0.2, -30.0);
 120
 121    glColor3f(.8,.8,.8);
 122    glVertex3f(-0.2, -0.5, -30.0);
 123    glVertex3f( 0.2, -0.5, -30.0);
 124    glEnd();
 125
 126
 127    glFlush();
 128
 129    if (doubleBuffer) {
 130       glutSwapBuffers();
 131    }
 132 }
 133
 134 static GLenum Args(int argc, char **argv)
 135 {
 136    GLint i;
 137
 138    for (i = 1; i < argc; i++) {
 139       if (strcmp(argv[i], "-sb") == 0) {
 140          doubleBuffer = GL_FALSE;
 141       } else if (strcmp(argv[i], "-db") == 0) {
 142          doubleBuffer = GL_TRUE;
 143       } else {
 144          fprintf(stderr, "%s (Bad option).\n", argv[i]);
 145          return GL_FALSE;
 146       }
 147    }
 148    return GL_TRUE;
 149 }
 150
 151 int main(int argc, char **argv)
 152 {
 153    GLenum type;
 154
 155    glutInit(&argc, argv);
 156
 157    if (Args(argc, argv) == GL_FALSE) {
 158       exit(1);
 159    }
 160
 161    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
 162
 163    type = GLUT_RGB | GLUT_ALPHA;
 164    type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
 165    glutInitDisplayMode(type);
 166
 167    win = glutCreateWindow(*argv);
 168    if (!win) {
 169       exit(1);
 170    }
 171
 172    Init();
 173
 174    glutReshapeFunc(Reshape);
 175    glutKeyboardFunc(Key);
 176    glutDisplayFunc(Draw);
 177    glutMainLoop();
 178    return 0;
 179 }