1 extern crate mandelwow_lib;
9 use cgmath::{Euler, Matrix4, Rad, Vector3, Zero};
10 use cgmath::conv::array4x4;
11 use glium::{DisplayBuild, Surface};
12 use glutin::ElementState::Pressed;
13 use glutin::Event::KeyboardInput;
14 use glutin::VirtualKeyCode;
16 use std::f32::consts::PI;
18 #[cfg(target_os = "emscripten")]
19 use std::os::raw::{c_int, c_void};
21 fn screenshot(display : &glium::Display) {
22 let image: glium::texture::RawImage2d<u8> = display.read_front_buffer();
23 let image = image::ImageBuffer::from_raw(image.width, image.height, image.data.into_owned()).unwrap();
24 let image = image::DynamicImage::ImageRgba8(image).flipv();
25 let mut output = std::fs::File::create(&std::path::Path::new("screenshot.png")).unwrap();
26 image.save(&mut output, image::ImageFormat::PNG).unwrap();
29 fn gl_info(display : &glium::Display) {
30 let version = *display.get_opengl_version();
31 let api = match version {
32 glium::Version(glium::Api::Gl, _, _) => "OpenGL",
33 glium::Version(glium::Api::GlEs, _, _) => "OpenGL ES"
35 println!("{} context verson: {}", api, display.get_opengl_version_string());
38 #[cfg(target_os = "emscripten")]
39 #[allow(non_camel_case_types)]
40 type em_callback_func = unsafe extern fn();
41 #[cfg(target_os = "emscripten")]
43 fn emscripten_set_main_loop(func : em_callback_func, fps : c_int, simulate_infinite_loop : c_int);
46 #[cfg(target_os = "emscripten")]
47 thread_local!(static MAIN_LOOP_CALLBACK: std::cell::RefCell<*mut c_void> =
48 std::cell::RefCell::new(std::ptr::null_mut()));
50 #[cfg(target_os = "emscripten")]
51 pub fn set_main_loop_callback<F>(callback : F) where F : FnMut() -> support::Action {
52 MAIN_LOOP_CALLBACK.with(|log| {
53 *log.borrow_mut() = &callback as *const _ as *mut c_void;
56 unsafe { emscripten_set_main_loop(wrapper::<F>, 0, 1); }
58 unsafe extern "C" fn wrapper<F>() where F : FnMut() -> support::Action {
59 MAIN_LOOP_CALLBACK.with(|z| {
60 let closure = *z.borrow_mut() as *mut F;
66 #[cfg(not(target_os = "emscripten"))]
67 pub fn set_main_loop_callback<F>(callback : F) where F : FnMut() -> support::Action {
68 support::start_loop(callback);
72 let _soundplayer = sound::start();
74 let display = glutin::WindowBuilder::new()
75 .with_dimensions(1280, 720)
76 //.with_fullscreen(glutin::get_primary_monitor())
77 .with_depth_buffer(24)
79 .with_title(format!("MandelWow"))
85 let mandelwow_program = mandelwow::program(&display);
86 let bounding_box_program = bounding_box::solid_fill_program(&display);
87 let shaded_program = shaded_cube::shaded_program(&display);
89 let mut camera = support::camera::CameraState::new();
91 let mut pause = false;
92 let mut bounding_box_enabled = true;
93 let mut fullscreen = true;
95 // These are the bounds of the 3D Mandelwow section which we render in 3-space.
104 let mandelwow_bbox = bounding_box::BoundingBox::new(&display, &bounds, &bounding_box_program);
105 let shaded_cube = ShadedCube::new(&display, &Cube::default(), &shaded_program);
107 const SEA_XSIZE: usize = 24;
108 const SEA_ZSIZE: usize = 20;
109 let sea_xmin = -14.0f32;
110 let sea_xmax = 14.0f32;
112 let sea_zmin = -2.0f32;
113 let sea_zmax = -26.0f32;
114 let sea_xstep = (sea_xmax - sea_xmin) / (SEA_XSIZE as f32);
115 let sea_zstep = (sea_zmax - sea_zmin) / (SEA_ZSIZE as f32);
117 let mut sea = [[Vector3::zero(); SEA_ZSIZE]; SEA_XSIZE];
118 for x in 0..SEA_XSIZE {
119 for z in 0..SEA_ZSIZE {
120 sea[x][z] = Vector3 {
121 x: sea_xmin + (x as f32) * sea_xstep,
123 z: sea_zmin + (z as f32) * sea_zstep,
128 set_main_loop_callback(|| {
136 // Vary the wow factor to slice the Mandelwow along its 4th dimension.
139 let wsize = wmax - wmin;
140 let wow = (((t * 0.7).sin() + 1.0) / 2.0) * wsize + wmin;
142 //println!("t={} w={:?} camera={:?}", t, w, camera.get_pos());
144 let mut frame = display.draw();
145 frame.clear_color_and_depth((0.0, 0.0, 0.0, 1.0), 1.0);
147 let rotation = Matrix4::from(
148 Euler { x: Rad(t.sin() / 3.), y: Rad(t.sin() / 2.), z: Rad(t / 1.5)});
149 let z_trans = -3.0; // Send the model back a little bit so it fits the screen.
151 Matrix4::from_translation(Vector3::unit_z() * z_trans) * rotation;
152 let model = array4x4(model2);
154 // Draw the bounding box before the fractal, when the Z-buffer is still clear,
155 // so the lines behind the semi-translucent areas will be drawn.
156 if bounding_box_enabled {
157 let uniforms = uniform! {
159 view: camera.get_view(),
160 perspective: camera.get_perspective(),
162 mandelwow_bbox.draw(&mut frame, &uniforms);
165 for x in 0..SEA_XSIZE {
166 for z in 0..SEA_ZSIZE {
167 let wave = (((x as f32 / SEA_XSIZE as f32 * PI * 5.0 + t * 2.0)).sin() +
168 ((z as f32 / SEA_ZSIZE as f32 * PI * 3.0 + t * 3.0)).sin()) * 0.3;
169 let model = Matrix4::from_translation(sea[x][z] + Vector3 {x: 0., y: wave, z: 0.});
170 let uniforms = uniform! {
171 model: array4x4(model),
172 view: camera.get_view(),
173 perspective: camera.get_perspective(),
175 shaded_cube.draw(&mut frame, &uniforms);
179 mandelwow::draw(&display, &mut frame, &mandelwow_program, model, &camera, &bounds, wow);
180 frame.finish().unwrap();
182 for ev in display.poll_events() {
184 glutin::Event::Closed |
185 KeyboardInput(Pressed, _, Some(VirtualKeyCode::Escape)) |
186 KeyboardInput(Pressed, _, Some(VirtualKeyCode::Q)) => {
187 return support::Action::Stop
189 KeyboardInput(Pressed, _, Some(VirtualKeyCode::B)) => {
190 bounding_box_enabled ^= true;
192 KeyboardInput(Pressed, _, Some(VirtualKeyCode::P)) => {
195 KeyboardInput(Pressed, _, Some(VirtualKeyCode::PageUp)) => {
198 KeyboardInput(Pressed, _, Some(VirtualKeyCode::PageDown)) => {
201 KeyboardInput(Pressed, _, Some(VirtualKeyCode::F10)) => {
202 screenshot(&display);
204 KeyboardInput(Pressed, _, Some(VirtualKeyCode::F11)) => {
207 // Not implemented on Linux
208 glutin::WindowBuilder::new()
209 .with_fullscreen(glutin::get_primary_monitor())
210 .with_depth_buffer(24)
211 .rebuild_glium(&display).unwrap();
213 //glutin::WindowBuilder::new()
214 // .rebuild_glium(&display).unwrap();
217 ev => camera.process_input(&ev),
221 support::Action::Continue