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1 #include <stdio.h>
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2 #include <stdlib.h>
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3 #include <assert.h>
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4 #include <GL/glut.h>
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5
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6 static bool init();
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7 static void cleanup();
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8 static void disp();
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9 static void reshape(int x, int y);
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10 static void keypress(unsigned char key, int x, int y);
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11 static void keyrelease(unsigned char key, int x, int y);
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12 static void skeypress(int key, int x, int y);
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13 static void skeyrelease(int key, int x, int y);
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14 static void mouse(int bn, int st, int x, int y);
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15 static void motion(int x, int y);
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16
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17 int main(int argc, char **argv)
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18 {
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19 glutInitWindowSize(800, 600);
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20 glutInit(&argc, argv);
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21 glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
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22 glutCreateWindow("gameui test");
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23
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24 glutDisplayFunc(disp);
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25 glutReshapeFunc(reshape);
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26 glutKeyboardFunc(keypress);
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27 glutKeyboardUpFunc(keyrelease);
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28 glutSpecialFunc(skeypress);
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29 glutSpecialUpFunc(skeyrelease);
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30 glutMouseFunc(mouse);
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31 glutMotionFunc(motion);
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32 glutPassiveMotionFunc(motion);
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33
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34 if(!init()) {
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35 return 1;
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36 }
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37 atexit(cleanup);
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38
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39 glutMainLoop();
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40 return 0;
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41 }
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42
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43
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44 static bool init()
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45 {
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46 return true;
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47 }
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48
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49 static void cleanup()
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50 {
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51 }
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52
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53 static void disp()
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54 {
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55 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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56
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57 glutSwapBuffers();
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58 assert(glGetError() == GL_NO_ERROR);
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59 }
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60
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61 static void reshape(int x, int y)
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62 {
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63 glViewport(0, 0, x, y);
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64 glMatrixMode(GL_PROJECTION);
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65 glLoadIdentity();
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66 glOrtho(0, x, y, 0, -1, 1);
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67 }
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68
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69 static void keypress(unsigned char key, int x, int y)
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70 {
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71 if(key == 27) {
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72 exit(0);
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73 }
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74 }
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75
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76 static void keyrelease(unsigned char key, int x, int y)
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77 {
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78 }
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79
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80 static void skeypress(int key, int x, int y)
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81 {
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82 }
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83
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84 static void skeyrelease(int key, int x, int y)
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85 {
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86 }
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87
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88 static void mouse(int bn, int st, int x, int y)
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89 {
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90 }
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91
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92 static void motion(int x, int y)
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93 {
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94 }
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