git.mutantstargoat.com Git - censuslogo/blob - src/main_glut.c

   1 #include <stdlib.h>
   2 #include <assert.h>
   3 #include <GL/glut.h>
   4 #include "app.h"
   5
   6 static void display(void);
   7 static void idle(void);
   8 static void reshape(int x, int y);
   9 static void keyb(unsigned char key, int x, int y);
  10
  11 static long start_time;
  12
  13 int main(int argc, char **argv)
  14 {
  15         unsigned int flags = GLUT_RGB | GLUT_DOUBLE;
  16
  17         glutInit(&argc, argv);
  18         if(app_parse_args(argc, argv) == -1) {
  19                 return 1;
  20         }
  21
  22 #ifdef MSAA
  23         if(msaa) {
  24                 flags |= GLUT_MULTISAMPLE;
  25         }
  26 #endif
  27
  28         glutInitWindowSize(1280, 800);
  29         glutInitDisplayMode(flags);
  30         glutCreateWindow("census");
  31
  32         if(fullscr) {
  33                 glutFullScreen();
  34                 glutSetCursor(GLUT_CURSOR_NONE);
  35         }
  36
  37         glutDisplayFunc(display);
  38         glutIdleFunc(idle);
  39         glutReshapeFunc(reshape);
  40         glutKeyboardFunc(keyb);
  41
  42         if(app_init() == -1) {
  43                 return 1;
  44         }
  45         start_time = glutGet(GLUT_ELAPSED_TIME);
  46
  47         glutMainLoop();
  48         return 0;
  49 }
  50
  51 static void display(void)
  52 {
  53         msec = glutGet(GLUT_ELAPSED_TIME) - start_time;
  54
  55         app_display();
  56
  57         glutSwapBuffers();
  58         assert(glGetError() == GL_NO_ERROR);
  59 }
  60
  61 static void idle(void)
  62 {
  63         glutPostRedisplay();
  64 }
  65
  66 static void reshape(int x, int y)
  67 {
  68         app_reshape(x, y);
  69         win_width = x;
  70         win_height = y;
  71 }
  72
  73 static void keyb(unsigned char key, int x, int y)
  74 {
  75         app_keyboard(key, 1);
  76 }
  77
  78 void app_quit(void)
  79 {
  80         exit(0);
  81 }
  82
  83 static int saved_width = 1280, saved_height = 800;
  84
  85 void app_fullscreen(void)
  86 {
  87         saved_width = win_width;
  88         saved_height = win_height;
  89         glutFullScreen();
  90         glutSetCursor(GLUT_CURSOR_NONE);
  91 }
  92
  93 void app_windowed(void)
  94 {
  95         glutReshapeWindow(saved_width, saved_height);
  96         glutSetCursor(GLUT_CURSOR_INHERIT);
  97 }