vrseasons

annotate src/game.cc @ 0:393ef1143c9c

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VR seasons
author John Tsiombikas <nuclear@member.fsf.org>
date Tue, 07 Apr 2015 11:16:56 +0300
parents
children 65c2e37c48b2
rev   line source
nuclear@0 1 #include <assert.h>
nuclear@0 2 #include "opengl.h"
nuclear@0 3 #include "game.h"
nuclear@0 4 #include <stdio.h>
nuclear@0 5 #include <goatvr.h>
nuclear@0 6 #include "main.h"
nuclear@0 7 #include "scene.h"
nuclear@0 8 #include "timer.h"
nuclear@0 9 #include "rtarg.h"
nuclear@0 10 #include "opt.h"
nuclear@0 11
nuclear@0 12 static bool vr_mode = true;
nuclear@0 13 static int win_width, win_height;
nuclear@0 14 static RenderTarget vr_rtarg;
nuclear@0 15
nuclear@0 16 bool game_init(int argc, char **argv)
nuclear@0 17 {
nuclear@0 18 if(!parse_args(argc, argv)) {
nuclear@0 19 return false;
nuclear@0 20 }
nuclear@0 21
nuclear@0 22 init_gl();
nuclear@0 23
nuclear@0 24 if(vr_mode) {
nuclear@0 25 if(vr_init() == -1) {
nuclear@0 26 return false;
nuclear@0 27 }
nuclear@0 28
nuclear@0 29 win_width = vr_geti_def(VR_DISPLAY_WIDTH, 1280);
nuclear@0 30 win_height = vr_geti_def(VR_DISPLAY_HEIGHT, 800);
nuclear@0 31 resize_window(win_width, win_height);
nuclear@0 32
nuclear@0 33 int rt_width = vr_geti_def(VR_RENDER_XRES, win_width);
nuclear@0 34 int rt_height = vr_geti_def(VR_RENDER_YRES, win_height);
nuclear@0 35 vr_rtarg.create(rt_width, rt_height);
nuclear@0 36 }
nuclear@0 37
nuclear@0 38 return true;
nuclear@0 39 }
nuclear@0 40
nuclear@0 41 void game_shutdown()
nuclear@0 42 {
nuclear@0 43 vr_shutdown();
nuclear@0 44 }
nuclear@0 45
nuclear@0 46 void game_draw()
nuclear@0 47 {
nuclear@0 48 static unsigned long prev_msec;
nuclear@0 49 unsigned long msec = get_msec();
nuclear@0 50 float dt = (float)(msec - prev_msec) / 1000.0;
nuclear@0 51
nuclear@0 52 update_scene(msec, dt);
nuclear@0 53
nuclear@0 54 if(vr_mode) {
nuclear@0 55 set_render_target(&vr_rtarg);
nuclear@0 56
nuclear@0 57 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
nuclear@0 58
nuclear@0 59 for(int i=0; i<2; i++) {
nuclear@0 60 vr_begin(i);
nuclear@0 61
nuclear@0 62 glViewport(i == VR_EYE_LEFT ? 0 : vr_rtarg.get_width() / 2, 0, vr_rtarg.get_width() / 2, vr_rtarg.get_height());
nuclear@0 63
nuclear@0 64 glMatrixMode(GL_PROJECTION);
nuclear@0 65 float proj[16];
nuclear@0 66 if(vr_proj_matrix(i, 0.5, 500.0, proj)) {
nuclear@0 67 glLoadMatrixf(proj);
nuclear@0 68 } else {
nuclear@0 69 glLoadIdentity();
nuclear@0 70 gluPerspective(50.0, (float)win_width / 2.0 / (float)win_height, 0.5, 500.0);
nuclear@0 71 }
nuclear@0 72
nuclear@0 73 float view[16];
nuclear@0 74 vr_view_matrix(i, view);
nuclear@0 75
nuclear@0 76 glMatrixMode(GL_MODELVIEW);
nuclear@0 77 glLoadMatrixf(view);
nuclear@0 78 glTranslatef(0, -vr_getf(VR_EYE_HEIGHT), 0);
nuclear@0 79
nuclear@0 80 draw_scene();
nuclear@0 81
nuclear@0 82 vr_end();
nuclear@0 83 }
nuclear@0 84
nuclear@0 85 set_render_target(0);
nuclear@0 86 glViewport(0, 0, win_width, win_height);
nuclear@0 87
nuclear@0 88 vr_swap_buffers();
nuclear@0 89
nuclear@0 90 } else {
nuclear@0 91 glMatrixMode(GL_MODELVIEW);
nuclear@0 92 glLoadIdentity();
nuclear@0 93
nuclear@0 94 draw_scene();
nuclear@0 95
nuclear@0 96 swap_buffers();
nuclear@0 97 }
nuclear@0 98
nuclear@0 99 assert(glGetError() == GL_NO_ERROR);
nuclear@0 100 }
nuclear@0 101
nuclear@0 102 void game_reshape(int x, int y)
nuclear@0 103 {
nuclear@0 104 glViewport(0, 0, x, y);
nuclear@0 105
nuclear@0 106 if(vr_mode) {
nuclear@0 107 vr_rtarg.resize(x, y);
nuclear@0 108
nuclear@0 109 float umax = (float)vr_rtarg.get_width() / (float)vr_rtarg.get_tex_width();
nuclear@0 110 float vmax = (float)vr_rtarg.get_height() / (float)vr_rtarg.get_tex_height();
nuclear@0 111 vr_output_texture(vr_rtarg.get_texture(), 0, 0, umax, vmax);
nuclear@0 112 }
nuclear@0 113 }
nuclear@0 114
nuclear@0 115 void game_keyboard(int key, bool press)
nuclear@0 116 {
nuclear@0 117 if(press) {
nuclear@0 118 switch(key) {
nuclear@0 119 case 27:
nuclear@0 120 quit();
nuclear@0 121
nuclear@0 122 case ' ':
nuclear@0 123 if(vr_mode) {
nuclear@0 124 vr_recenter();
nuclear@0 125 }
nuclear@0 126 break;
nuclear@0 127 }
nuclear@0 128 }
nuclear@0 129 }
nuclear@0 130
nuclear@0 131 void game_mbutton(int bn, bool press, int x, int y)
nuclear@0 132 {
nuclear@0 133 }
nuclear@0 134
nuclear@0 135 void game_mmotion(int x, int y)
nuclear@0 136 {
nuclear@0 137 }