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nuclear@5
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1 #include <stdio.h>
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nuclear@5
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2 #include <ctype.h>
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nuclear@12
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3 #ifndef __APPLE__
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4 #include <GL/gl.h>
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5 #else
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6 #include <OpenGL/gl.h>
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7 #endif
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8 #include "sgl.h"
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9
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10 void disp(void);
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11 void reshape(int x, int y);
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12 void keyb(int key, int state);
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13 void mouse(int pidx, int bn, int state, int x, int y);
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14 void motion(int pidx, int x, int y);
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15
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16
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17 int main(void)
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18 {
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19 if(sgl_init() == -1) {
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20 return 1;
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21 }
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22
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23 sgl_create_window(640, 480, SGL_DOUBLE | SGL_DEPTH);
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24
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25 sgl_display_callback(disp);
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26 sgl_reshape_callback(reshape);
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27 sgl_keyboard_callback(keyb);
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28 sgl_mouse_callback(mouse);
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29 sgl_motion_callback(motion);
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30
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31 sgl_event_loop();
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32 sgl_quit();
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33 return 0;
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34 }
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35
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36
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37 void disp(void)
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38 {
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39 printf("redisplay\n");
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40
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41 glClearColor(0.2, 0.2, 0.2, 1);
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42 glClear(GL_COLOR_BUFFER_BIT);
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43
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44 glBegin(GL_QUADS);
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45 glColor3f(1, 0, 0);
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46 glVertex2f(-1, -1);
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47 glColor3f(0, 1, 0);
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48 glVertex2f(1, -1);
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49 glColor3f(0, 0, 1);
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50 glVertex2f(1, 1);
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51 glColor3f(1, 1, 0);
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52 glVertex2f(-1, 1);
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53 glEnd();
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54
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55 sgl_swap_buffers();
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56 }
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57
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58 void reshape(int x, int y)
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59 {
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60 printf("reshape: %dx%d\n", x, y);
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61 glViewport(0, 0, x, y);
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62 }
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63
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64 void keyb(int key, int state)
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65 {
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66 char *ststr = state ? "pressed" : "released";
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67
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68 if(key < 0xff && isprint(key)) {
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69 printf("keyboard: '%c' %s\n", (char)key, ststr);
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70 } else {
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71 printf("keyboard: %x %s\n", key, ststr);
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72 }
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73
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74 if(key == 27) {
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75 sgl_quit();
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76 }
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77 }
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78
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79 void mouse(int pidx, int bn, int state, int x, int y)
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80 {
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81 printf("mouse: button%d %s (ptr: %d %d)\n", bn, state ? "pressed" : "released", x, y);
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82 }
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83
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84 void motion(int pidx, int x, int y)
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85 {
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86 printf("mouse dragged to: (%d %d)\n", x, y);
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87 }
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