1 extern crate mandelwow_lib;
8 use cgmath::{Euler, Matrix4, Rad, SquareMatrix, Vector3, Vector4, Zero};
9 use cgmath::conv::array4x4;
10 use glium::{DisplayBuild, Surface};
11 use glutin::ElementState::Pressed;
12 use glutin::Event::KeyboardInput;
13 use glutin::VirtualKeyCode;
15 use std::f32::consts::PI;
16 use std::time::{Duration, Instant};
18 #[cfg(target_os = "emscripten")]
19 use std::os::raw::{c_int, c_void};
21 fn gl_info(display : &glium::Display) {
22 let version = *display.get_opengl_version();
23 let api = match version {
24 glium::Version(glium::Api::Gl, _, _) => "OpenGL",
25 glium::Version(glium::Api::GlEs, _, _) => "OpenGL ES"
27 println!("{} context verson: {}", api, display.get_opengl_version_string());
30 #[cfg(target_os = "emscripten")]
31 #[allow(non_camel_case_types)]
32 type em_callback_func = unsafe extern fn();
33 #[cfg(target_os = "emscripten")]
35 fn emscripten_set_main_loop(func : em_callback_func, fps : c_int, simulate_infinite_loop : c_int);
38 #[cfg(target_os = "emscripten")]
39 thread_local!(static MAIN_LOOP_CALLBACK: std::cell::RefCell<*mut c_void> =
40 std::cell::RefCell::new(std::ptr::null_mut()));
42 #[cfg(target_os = "emscripten")]
43 pub fn set_main_loop_callback<F>(callback : F) where F : FnMut() -> support::Action {
44 MAIN_LOOP_CALLBACK.with(|log| {
45 *log.borrow_mut() = &callback as *const _ as *mut c_void;
48 unsafe { emscripten_set_main_loop(wrapper::<F>, 0, 1); }
50 unsafe extern "C" fn wrapper<F>() where F : FnMut() -> support::Action {
51 MAIN_LOOP_CALLBACK.with(|z| {
52 let closure = *z.borrow_mut() as *mut F;
58 #[cfg(not(target_os = "emscripten"))]
59 pub fn set_main_loop_callback<F>(callback : F) where F : FnMut() -> support::Action {
60 support::start_loop(callback);
64 let mut soundplayer = sound::start();
66 let display = glutin::WindowBuilder::new()
67 .with_dimensions(1280, 720)
68 .with_gl_profile(glutin::GlProfile::Core)
69 //.with_fullscreen(glutin::get_primary_monitor())
70 .with_depth_buffer(24)
72 .with_srgb(Some(true))
73 .with_title("MandelWow")
75 //.build_glium_debug(glium::debug::DebugCallbackBehavior::PrintAll)
80 let text = text::Text::new(&display);
81 let mandelwow_program = mandelwow::program(&display);
82 let bounding_box_program = bounding_box::solid_fill_program(&display);
83 let shaded_program = shaded_cube::shaded_program(&display);
85 let mut camera = support::camera::CameraState::new();
87 let mut pause = false;
88 let mut bounding_box_enabled = true;
89 let mut fullscreen = true;
91 // These are the bounds of the 3D Mandelwow section which we render in 3-space.
100 let mandelwow_bbox = bounding_box::BoundingBox::new(&display, &bounds, &bounding_box_program);
101 let shaded_cube = ShadedCube::new(&display, &shaded_program);
103 const SEA_XSIZE: usize = 24;
104 const SEA_ZSIZE: usize = 20;
105 let sea_xmin = -14.0f32;
106 let sea_xmax = 14.0f32;
108 let sea_zmin = -2.0f32;
109 let sea_zmax = -26.0f32;
110 let sea_xstep = (sea_xmax - sea_xmin) / (SEA_XSIZE as f32);
111 let sea_zstep = (sea_zmax - sea_zmin) / (SEA_ZSIZE as f32);
113 let mut sea = [[Vector3::zero(); SEA_ZSIZE]; SEA_XSIZE];
114 for x in 0..SEA_XSIZE {
115 for z in 0..SEA_ZSIZE {
116 sea[x][z] = Vector3 {
117 x: sea_xmin + (x as f32) * sea_xstep,
119 z: sea_zmin + (z as f32) * sea_zstep,
124 let mut frame_cnt = 0;
125 let mut last_report_time = Instant::now();
126 let mut last_report_frame_cnt = 0;
127 let mut accum_draw_time = Duration::new(0, 0);
128 let mut accum_idle_time = Duration::new(0, 0);
130 let mut last_hit = 0.0f32;
131 let mut hit_time = 0.0f32;
132 set_main_loop_callback(|| {
133 let new_hit = sound::hit_event(&mut soundplayer);
134 if new_hit > last_hit {
138 let hit_delta = t - hit_time;
139 let hit_scale = 1. / (1. + hit_delta * hit_delta * 15.0) + 1.;
142 let perspview = camera.get_perspview();
144 // Vary the wow factor to slice the Mandelwow along its 4th dimension.
147 let wsize = wmax - wmin;
148 let wow = (((t * 0.7).sin() + 1.0) / 2.0) * wsize + wmin;
150 //println!("t={} w={:?} camera={:?}", t, w, camera.get_pos());
152 let time_before_swap = Instant::now();
153 let mut frame = display.draw();
154 frame.clear_color_and_depth((0.0, 0.0, 0.0, 1.0), 1.0);
155 let time_before_draw = Instant::now();
157 let rotation = Matrix4::from(
158 Euler { x: Rad(t.sin() / 3.), y: Rad(t.sin() / 2.), z: Rad(t / 1.5)});
159 let z_trans = -3.0; // Send the model back a little bit so it fits the screen.
161 Matrix4::from_diagonal(Vector4::new(hit_scale, hit_scale, hit_scale, 1.0));
163 Matrix4::from_translation(Vector3::unit_z() * z_trans) * rotation * scale;
164 let model = array4x4(model2);
166 // Draw the bounding box before the fractal, when the Z-buffer is still clear,
167 // so the lines behind the semi-translucent areas will be drawn.
168 if bounding_box_enabled {
169 let uniforms = uniform! {
171 view: camera.get_view(),
172 perspective: camera.get_perspective(),
174 mandelwow_bbox.draw(&mut frame, &uniforms);
177 for x in 0..SEA_XSIZE {
178 for z in 0..SEA_ZSIZE {
179 let wave = ((x as f32 / SEA_XSIZE as f32 * PI * 5.0 + t * 2.0).sin() +
180 (z as f32 / SEA_ZSIZE as f32 * PI * 3.0 + t * 3.0).sin()) * 0.3;
181 let model = Matrix4::from_translation(sea[x][z] + Vector3 {x: 0., y: wave, z: 0.});
182 let uniforms = uniform! {
183 model: array4x4(model),
184 perspview: perspview,
185 col: [0., (1. - wave).abs() * 0.5, wave.abs()],
187 shaded_cube.draw(&mut frame, &uniforms);
191 mandelwow::draw(&display, &mut frame, &mandelwow_program, model, &camera, &bounds, wow);
193 text.draw(&mut frame, &perspview);
195 frame.finish().unwrap();
196 let time_after_draw = Instant::now();
198 for ev in display.poll_events() {
200 glutin::Event::Closed |
201 KeyboardInput(Pressed, _, Some(VirtualKeyCode::Escape)) |
202 KeyboardInput(Pressed, _, Some(VirtualKeyCode::Q)) => {
203 return support::Action::Stop
205 KeyboardInput(Pressed, _, Some(VirtualKeyCode::B)) => {
206 bounding_box_enabled ^= true;
208 KeyboardInput(Pressed, _, Some(VirtualKeyCode::P)) => {
211 KeyboardInput(Pressed, _, Some(VirtualKeyCode::PageUp)) => {
214 KeyboardInput(Pressed, _, Some(VirtualKeyCode::PageDown)) => {
217 KeyboardInput(Pressed, _, Some(VirtualKeyCode::F10)) => {
218 screenshot(&display);
220 KeyboardInput(Pressed, _, Some(VirtualKeyCode::F11)) => {
223 // Not implemented on Linux
224 glutin::WindowBuilder::new()
225 .with_fullscreen(glutin::get_primary_monitor())
226 .with_depth_buffer(24)
227 .rebuild_glium(&display).unwrap();
229 glutin::WindowBuilder::new()
230 .rebuild_glium(&display).unwrap();
233 ev => camera.process_input(&ev),
237 let now = Instant::now();
239 accum_idle_time += time_before_draw - time_before_swap;
240 accum_draw_time += time_after_draw - time_before_draw;
241 if now - last_report_time > Duration::from_secs(5) {
242 fn millis(d : Duration) -> f32 {
243 d.as_secs() as f32 * 1e3 + d.subsec_nanos() as f32 / 1e6
245 let frames_done = frame_cnt - last_report_frame_cnt;
246 let fps = frames_done as f32 / (now - last_report_time).as_secs() as f32;
247 let avg_draw_time = millis(accum_draw_time / frames_done);
248 let avg_idle_time = millis(accum_idle_time / frames_done);
249 println!("fps={:.1} draw={:.1}ms idle={:.1}ms", fps, avg_draw_time, avg_idle_time);
251 last_report_time = now;
252 last_report_frame_cnt = frame_cnt;
253 accum_draw_time = Duration::new(0, 0);
254 accum_idle_time = Duration::new(0, 0);
262 support::Action::Continue