Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/freeglut/progs/demos/multi-touch/multi-touch.c @ 46:7ee69f120f19 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
>>>>> tag v1.26.5+1 for changeset b74429b0f5c4
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 17:17:30 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2
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1 /**
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2 * Sample multi-touch program that displays a square where a cursor
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3 * clicks, with a different color for each cursor.
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4 *
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5 * Copyright (C) 2012 Sylvain Beucler
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6 *
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7 * Permission is hereby granted, free of charge, to any person
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8 * obtaining a copy of this software and associated documentation
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9 * files (the "Software"), to deal in the Software without
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10 * restriction, including without limitation the rights to use, copy,
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11 * modify, merge, publish, distribute, sublicense, and/or sell copies
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12 * of the Software, and to permit persons to whom the Software is
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13 * furnished to do so, subject to the following conditions:
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14 *
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15 * The above copyright notice and this permission notice shall be
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16 * included in all copies or substantial portions of the Software.
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17 *
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18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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19 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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21 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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22 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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23 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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25 * SOFTWARE.
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26 */
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27
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28 #include <stdio.h>
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29 #include <stdlib.h>
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30 #include <string.h>
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31
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32 #include <GL/freeglut.h>
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33 #include <GL/gl.h>
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34
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35 #define NUM_DEVICES 16
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36 #define NUM_CURSORS 64
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37 typedef struct cursor {
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38 char on;
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39 float x;
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40 float y;
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41 } *Cursor;
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42 struct cursor cursors[NUM_DEVICES][NUM_CURSORS];
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43
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44
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45 static float square[] = {
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46 -.5, -.5,
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47 .5, -.5,
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48 -.5, .5,
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49 .5, .5,
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50 };
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51
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52 void onDisplay(void) {
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53 int d;
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54 glClearColor(0,0,0,1);
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55 glClear(GL_COLOR_BUFFER_BIT);
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56
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57 glEnableClientState(GL_VERTEX_ARRAY);
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58 glVertexPointer(2, GL_FLOAT, 0, square);
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59 for (d = 0; d < NUM_DEVICES; d++) {
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60 int c;
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61 for (c = 0; d < NUM_DEVICES; d++) {
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62 Cursor C = &cursors[d][c];
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63 if (C->on) {
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64 glMatrixMode(GL_MODELVIEW);
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65 glLoadIdentity();
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66 glTranslatef(C->x, C->y, 0);
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67 glScalef(30, 30, 1);
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68
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69 switch(c) {
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70 case 0:
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71 glColor4f(0,0,1,1);
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72 break;
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73 case 1:
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74 glColor4f(0,1,0,1);
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75 break;
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76 case 2:
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77 glColor4f(1,0,0,1);
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78 break;
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79 case 3:
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80 glColor4f(1,1,1,1);
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81 break;
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82 default:
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83 glColor4d(.5,.5,.5,1);
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84 break;
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85 }
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86 glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
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87 }
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88 }
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89 }
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90 glDisableClientState(GL_VERTEX_ARRAY);
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91
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92 glutSwapBuffers();
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93 }
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94
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95 void onMouse(int button, int state, int x, int y) {
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96 if (button == 0) {
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97 cursors[0][0].on = (state == GLUT_DOWN);
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98 cursors[0][0].x = (float)x;
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99 cursors[0][0].y = (float)y;
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100 printf("normal click\n");
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101 }
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102 }
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parents:
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103
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parents:
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104 void onMotion(int x, int y) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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105 cursors[0][0].x = (float)x;
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parents:
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106 cursors[0][0].y = (float)y;
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parents:
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107 }
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parents:
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108
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109 /* Using FG2.8 (reversed) prototype for now */
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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110 /* void onMultiButton(int cursor_id, int button, int state, int x, int y) { */
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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111 void onMultiButton(int cursor_id, int x, int y, int button, int state) {
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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112 if (cursor_id > NUM_CURSORS) {
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113 fprintf(stderr, "cursor_id(%d) > NUM_CURSORS(%d)\n", cursor_id, NUM_CURSORS);
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114 return;
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115 }
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116 if (button == 0) {
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117 cursors[0][cursor_id].on = (state == GLUT_DOWN);
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118 cursors[0][cursor_id].x = (float)x;
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119 cursors[0][cursor_id].y = (float)y;
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120 printf("multi-touch %d click\n", cursor_id);
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121 }
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122 }
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123
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124 void onMultiMotion(int cursor_id, int x, int y) {
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125 if (cursor_id > NUM_CURSORS) {
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126 fprintf(stderr, "cursor_id(%d) > NUM_CURSORS(%d)\n", cursor_id, NUM_CURSORS);
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127 return;
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128 }
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129 cursors[0][cursor_id].x = (float)x;
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130 cursors[0][cursor_id].y = (float)y;
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131 }
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132
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133 void onReshape(int width, int height) {
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134 glViewport(0, 0, width, height);
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135
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parents:
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136 glMatrixMode(GL_PROJECTION);
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137 glOrtho(0, width, height, 0, -1, 1);
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138 }
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139
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parents:
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140 void onIdle(void) {
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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141 glutPostRedisplay();
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142 }
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143
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144 int main(int argc, char* argv[]) {
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145 memset(cursors, 0, sizeof(cursors));
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parents:
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146
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147 glutInit(&argc, argv);
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parents:
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148 glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE);
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parents:
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149 glutInitWindowSize(640, 480);
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parents:
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150 glutCreateWindow("Multi-touch test");
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parents:
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151
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parents:
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152 glutDisplayFunc(onDisplay);
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parents:
diff changeset
153 glutReshapeFunc(onReshape);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
154 glutIdleFunc(onIdle);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
155 glutMouseFunc(onMouse);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
156 glutMotionFunc(onMotion);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
157 glutMultiButtonFunc(onMultiButton);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
158 glutMultiMotionFunc(onMultiMotion);
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parents:
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159
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
160 glutMainLoop();
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parents:
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161
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
162 return EXIT_SUCCESS;
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
163 }