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