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nuclear@1
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1 #include <stdio.h>
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nuclear@1
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2 #include <stdlib.h>
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nuclear@1
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3 #include <SDL2/SDL.h>
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nuclear@1
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4 #include "opengl.h"
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nuclear@1
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5 #include "vport.h"
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nuclear@1
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6
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nuclear@1
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7 #define ANYPOS SDL_WINDOWPOS_UNDEFINED
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nuclear@1
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8
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nuclear@1
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9 void display();
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nuclear@1
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10 bool handle_event(SDL_Event *ev);
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nuclear@1
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11 bool handle_key(int key, bool pressed);
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nuclear@1
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12 void reshape(int x, int y);
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nuclear@1
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13
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nuclear@1
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14 static SDL_Window *win;
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nuclear@1
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15 static SDL_GLContext ctx;
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nuclear@1
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16
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nuclear@1
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17 int main(int argc, char **argv)
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nuclear@1
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18 {
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nuclear@1
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19 if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) == -1) {
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nuclear@1
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20 fprintf(stderr, "failed to initialize SDL\n");
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nuclear@1
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21 return 1;
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nuclear@1
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22 }
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nuclear@1
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23
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nuclear@1
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24 unsigned int flags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE;
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nuclear@1
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25 if(!(win = SDL_CreateWindow("vrmodel", ANYPOS, ANYPOS, 1280, 800, flags))) {
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nuclear@1
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26 fprintf(stderr, "failed to create window\n");
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nuclear@1
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27 return 1;
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nuclear@1
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28 }
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nuclear@1
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29 if(!(ctx = SDL_GL_CreateContext(win))) {
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nuclear@1
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30 fprintf(stderr, "failed to create OpenGL context\n");
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nuclear@1
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31 SDL_Quit();
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nuclear@1
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32 return 1;
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nuclear@1
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33 }
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nuclear@1
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34
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nuclear@1
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35 for(;;) {
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nuclear@1
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36 SDL_Event ev;
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nuclear@1
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37 SDL_WaitEvent(&ev);
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nuclear@1
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38
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nuclear@1
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39 do {
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nuclear@1
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40 if(!handle_event(&ev)) {
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nuclear@1
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41 goto done;
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nuclear@1
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42 }
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nuclear@1
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43 } while(SDL_PollEvent(&ev));
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nuclear@1
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44
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nuclear@1
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45 display();
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nuclear@1
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46 }
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nuclear@1
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47
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nuclear@1
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48 done:
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nuclear@1
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49 SDL_Quit();
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nuclear@1
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50 return 0;
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nuclear@1
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51 }
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nuclear@1
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52
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nuclear@1
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53 void display()
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nuclear@1
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54 {
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nuclear@1
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55 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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nuclear@1
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56
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nuclear@1
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57 int width, height;
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nuclear@1
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58 SDL_GetWindowSize(win, &width, &height);
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nuclear@1
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59 glViewport(0, 0, width, height);
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nuclear@1
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60
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nuclear@1
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61 glMatrixMode(GL_PROJECTION);
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nuclear@1
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62 glLoadIdentity();
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nuclear@1
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63 gluPerspective(50.0, (float)width / (float)height, 0.5, 1000.0);
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nuclear@1
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64
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nuclear@1
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65 glMatrixMode(GL_MODELVIEW);
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nuclear@1
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66 glLoadIdentity();
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nuclear@1
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67 glTranslatef(0, 0, -10);
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nuclear@1
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68 glRotatef(25, 1, 0, 0);
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nuclear@1
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69
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nuclear@1
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70 draw_vport();
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nuclear@1
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71
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nuclear@1
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72 SDL_GL_SwapWindow(win);
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nuclear@1
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73 }
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nuclear@1
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74
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nuclear@1
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75 bool handle_event(SDL_Event *ev)
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nuclear@1
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76 {
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nuclear@1
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77 switch(ev->type) {
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nuclear@1
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78 case SDL_KEYDOWN:
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nuclear@1
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79 case SDL_KEYUP:
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nuclear@1
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80 return handle_key(ev->key.keysym.sym, ev->key.state == SDL_PRESSED);
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nuclear@1
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81
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nuclear@1
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82 default:
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nuclear@1
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83 break;
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nuclear@1
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84 }
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nuclear@1
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85
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nuclear@1
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86 return true;
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nuclear@1
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87 }
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nuclear@1
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88
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nuclear@1
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89 bool handle_key(int key, bool pressed)
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nuclear@1
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90 {
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nuclear@1
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91 if(pressed) {
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nuclear@1
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92 switch(key) {
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nuclear@1
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93 case 27:
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nuclear@1
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94 return false;
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nuclear@1
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95
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nuclear@1
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96 default:
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nuclear@1
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97 break;
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nuclear@1
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98 }
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nuclear@1
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99 }
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nuclear@1
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100 return true;
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nuclear@1
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101 }
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