dsys2

annotate test.c @ 2:1705e550bd91

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foo
author John Tsiombikas <nuclear@siggraph.org>
date Wed, 31 Aug 2011 05:08:54 +0300
parents
children 3258d163cfbc
rev   line source
nuclear@2 1 #include <stdio.h>
nuclear@2 2 #include <stdlib.h>
nuclear@2 3 #include <time.h>
nuclear@2 4 #include <sys/time.h>
nuclear@2 5
nuclear@2 6 #ifndef __APPLE__
nuclear@2 7 #include <GL/glut.h>
nuclear@2 8 #else
nuclear@2 9 #include <GLUT/glut.h>
nuclear@2 10 #endif
nuclear@2 11
nuclear@2 12 #include "dsys2.h"
nuclear@2 13
nuclear@2 14 void disp(void);
nuclear@2 15 void draw_teapot(float sec);
nuclear@2 16 void reshape(int x, int y);
nuclear@2 17 void keyb(unsigned char key, int x, int y);
nuclear@2 18 unsigned int get_ticks(void);
nuclear@2 19
nuclear@2 20 struct dsys_demo *demo;
nuclear@2 21
nuclear@2 22 int main(int argc, char **argv)
nuclear@2 23 {
nuclear@2 24 float lpos[] = {-100, 100, 100, 1};
nuclear@2 25
nuclear@2 26 glutInit(&argc, argv);
nuclear@2 27 glutInitWindowSize(800, 600);
nuclear@2 28 glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
nuclear@2 29 glutCreateWindow("foo");
nuclear@2 30
nuclear@2 31 glutDisplayFunc(disp);
nuclear@2 32 glutReshapeFunc(reshape);
nuclear@2 33 glutKeyboardFunc(keyb);
nuclear@2 34 glutIdleFunc(glutPostRedisplay);
nuclear@2 35
nuclear@2 36 glEnable(GL_LIGHTING);
nuclear@2 37 glEnable(GL_LIGHT0);
nuclear@2 38 glLightfv(GL_LIGHT0, GL_POSITION, lpos);
nuclear@2 39
nuclear@2 40 glEnable(GL_CULL_FACE);
nuclear@2 41 glEnable(GL_DEPTH_TEST);
nuclear@2 42
nuclear@2 43 if(!(demo = dsys_open("/dev/null"))) {
nuclear@2 44 return 1;
nuclear@2 45 }
nuclear@2 46
nuclear@2 47 glutMainLoop();
nuclear@2 48 return 0;
nuclear@2 49 }
nuclear@2 50
nuclear@2 51
nuclear@2 52 void disp(void)
nuclear@2 53 {
nuclear@2 54 float sec;
nuclear@2 55
nuclear@2 56 dsys_update(demo, dsys_msec_to_dtime(get_ticks()));
nuclear@2 57 sec = dsys_dtime_to_sec(dsys_time(demo));
nuclear@2 58
nuclear@2 59 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
nuclear@2 60
nuclear@2 61 glMatrixMode(GL_MODELVIEW);
nuclear@2 62 glLoadIdentity();
nuclear@2 63 glTranslatef(0, 0, -8);
nuclear@2 64 glRotatef(30.0, 1, 0, 0);
nuclear@2 65
nuclear@2 66 draw_teapot(sec);
nuclear@2 67
nuclear@2 68 glutSwapBuffers();
nuclear@2 69 }
nuclear@2 70
nuclear@2 71 void draw_teapot(float sec)
nuclear@2 72 {
nuclear@2 73 float dcol[] = {0.2, 0.4, 0.8, 1.0};
nuclear@2 74 float scol[] = {0.8, 0.8, 0.8, 1.0};
nuclear@2 75
nuclear@2 76 glPushMatrix();
nuclear@2 77 glRotatef(sec * 100.0, 0, 1, 0);
nuclear@2 78
nuclear@2 79 glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, dcol);
nuclear@2 80 glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, scol);
nuclear@2 81 glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 60.0);
nuclear@2 82
nuclear@2 83 glFrontFace(GL_CW);
nuclear@2 84 glutSolidTeapot(1.0);
nuclear@2 85 glFrontFace(GL_CCW);
nuclear@2 86
nuclear@2 87 glPopMatrix();
nuclear@2 88 }
nuclear@2 89
nuclear@2 90 void reshape(int x, int y)
nuclear@2 91 {
nuclear@2 92 glViewport(0, 0, x, y);
nuclear@2 93
nuclear@2 94 glMatrixMode(GL_PROJECTION);
nuclear@2 95 glLoadIdentity();
nuclear@2 96 gluPerspective(45.0, (float)x / (float)y, 1.0, 1000.0);
nuclear@2 97 }
nuclear@2 98
nuclear@2 99 void keyb(unsigned char key, int x, int y)
nuclear@2 100 {
nuclear@2 101 switch(key) {
nuclear@2 102 case 27:
nuclear@2 103 exit(0);
nuclear@2 104
nuclear@2 105 case ' ':
nuclear@2 106 if(dsys_is_running(demo)) {
nuclear@2 107 dsys_stop(demo);
nuclear@2 108 } else {
nuclear@2 109 dsys_start(demo);
nuclear@2 110 }
nuclear@2 111 break;
nuclear@2 112
nuclear@2 113 default:
nuclear@2 114 break;
nuclear@2 115 }
nuclear@2 116 }
nuclear@2 117
nuclear@2 118 unsigned int get_ticks(void)
nuclear@2 119 {
nuclear@2 120 static struct timeval tv0;
nuclear@2 121 struct timeval tv;
nuclear@2 122
nuclear@2 123 gettimeofday(&tv, 0);
nuclear@2 124
nuclear@2 125 if(tv0.tv_sec == 0 && tv0.tv_usec == 0) {
nuclear@2 126 tv0 = tv;
nuclear@2 127 }
nuclear@2 128 return (tv.tv_sec - tv0.tv_sec) * 1000 + (tv.tv_usec - tv0.tv_usec) / 1000;
nuclear@2 129 }