X-Git-Url: https://codewiz.org/gitweb?p=mandelwow.git;a=blobdiff_plain;f=main.rs;h=0cf1c18fce7db7f1a671c833373152252e9af75a;hp=dac8b37cb9f0f0dfb350d9293b762c44dd08a484;hb=HEAD;hpb=4168a7f814e1ed23a2f6e93d312c87bb2cb3005a diff --git a/main.rs b/main.rs index dac8b37..0cf1c18 100644 --- a/main.rs +++ b/main.rs @@ -1,141 +1,118 @@ -// Wow. Such fractal. - -#[macro_use] - -extern crate glium; -extern crate glutin; -extern crate libxm; -extern crate sdl2; - -use cube::Cube; -use glium::{DisplayBuild, Surface}; -use glium::index::{IndexBuffer, PrimitiveType}; -use glutin::ElementState::Pressed; -use glutin::Event::KeyboardInput; -use glutin::VirtualKeyCode; - -mod cube; -mod mandelwow; -mod sound; -mod support; - -fn solid_fill_program(display: &glium::Display) -> glium::Program { - let vertex_shader_src = r#" - #version 140 - in vec3 position; - uniform mat4 perspective; - uniform mat4 view; - uniform mat4 model; - - void main() { - mat4 modelview = view * model; - gl_Position = perspective * modelview * vec4(position, 1.0); - } - "#; +use cgmath::conv::array4x4; +use cgmath::{Euler, Matrix4, Rad, SquareMatrix, Vector3, Vector4, Zero}; +use glium::glutin::event::{ self, Event, VirtualKeyCode, WindowEvent }; +use glium::glutin::event_loop::ControlFlow; +use glium::{Display, Program, Surface, uniform}; +use instant::Duration; +use mandelwow_lib::*; +use std::f32::consts::PI; +use std::rc::Rc; + +#[cfg(target_os = "emscripten")] +use std::os::raw::{c_int, c_void}; + +fn gl_info(display: &glium::Display) { + if cfg!(feature = "logging") { + let version = *display.get_opengl_version(); + let api = match version { + glium::Version(glium::Api::Gl, _, _) => "OpenGL", + glium::Version(glium::Api::GlEs, _, _) => "OpenGL ES", + }; + println!( + "{} context verson: {}", + api, + display.get_opengl_version_string() + ); + } +} - let fragment_shader_src = r#" - #version 140 +const SEA_XSIZE: usize = 40; +const SEA_ZSIZE: usize = 25; - out vec4 color; +struct World { + mandelwow_program: Rc, + mandelwow_bounds: Cube, + mandelwow_bbox: BoundingBox, + bounding_box_enabled: bool, - void main() { - color = vec4(1.0, 1.0, 1.0, 1.0); - } - "#; + shaded_cube: ShadedCube, + text: Text, - return glium::Program::from_source(display, - vertex_shader_src, - fragment_shader_src, - None).unwrap(); -} + sea: [[Vector3; SEA_ZSIZE]; SEA_XSIZE], -fn bounding_box(display: &glium::Display, - frame: &mut glium::Frame, - program: &glium::Program, - uniforms: &U, - cube: &Cube) where U: glium::uniforms::Uniforms { - - #[derive(Copy, Clone)] - struct Vertex { position: [f32; 3] } - implement_vertex!(Vertex, position); - - let cube = [ - Vertex { position: [cube.xmin, cube.ymin, cube.zmin] }, - Vertex { position: [cube.xmax, cube.ymin, cube.zmin] }, - Vertex { position: [cube.xmax, cube.ymax, cube.zmin] }, - Vertex { position: [cube.xmin, cube.ymax, cube.zmin] }, - Vertex { position: [cube.xmin, cube.ymin, cube.zmax] }, - Vertex { position: [cube.xmax, cube.ymin, cube.zmax] }, - Vertex { position: [cube.xmax, cube.ymax, cube.zmax] }, - Vertex { position: [cube.xmin, cube.ymax, cube.zmax] }, - ]; - let vb = glium::VertexBuffer::new(display, &cube).unwrap(); - - let params = glium::DrawParameters { - depth: glium::Depth { - test: glium::draw_parameters::DepthTest::IfLess, - write: true, - ..Default::default() - }, - blend: glium::Blend::alpha_blending(), - ..Default::default() - }; - - let front_indices = IndexBuffer::new(display, PrimitiveType::LineLoop, - &[0, 1, 2, 3u16]).unwrap(); - frame.draw(&vb, &front_indices, program, uniforms, ¶ms).unwrap(); - - let back_indices = IndexBuffer::new(display, PrimitiveType::LineLoop, - &[4, 5, 6, 7u16]).unwrap(); - frame.draw(&vb, &back_indices, program, uniforms, ¶ms).unwrap(); - - let sides_indices = IndexBuffer::new(display, PrimitiveType::LinesList, - &[0, 4, 1, 5, 2, 6, 3, 7u16]).unwrap(); - frame.draw(&vb, &sides_indices, program, uniforms, ¶ms).unwrap(); + // For the zoom animation synchronized to the drum-hits + hit_time: f32, + last_hit: f32, } -fn main() { - sound::start(); +impl World { + pub fn new(display: &glium::Display) -> World { + let mandelwow_program = Rc::new(mandelwow::program(display)); + let bounding_box_program = Rc::new(bounding_box::solid_fill_program(display)); + let shaded_program = Rc::new(shaded_cube::shaded_program(display)); - let display = glium::glutin::WindowBuilder::new() - //.with_dimensions(1024, 768) - .with_fullscreen(glutin::get_primary_monitor()) - .with_depth_buffer(24) - .with_vsync() - .with_title(format!("MandelWow")) - .build_glium() - .unwrap(); + // These are the bounds for the 3D slice of the 4D Mandelwow + let mandelwow_bounds = Cube { + xmin: -2.0, + xmax: 0.7, + ymin: -1.0, + ymax: 1.0, + zmin: -1.1, + zmax: 1.1, + }; - let mandelwow_program = mandelwow::program(&display); - let bounding_box_program = solid_fill_program(&display); + // Generate a wavy sea made of cubes + let sea_xmin = -20.0f32; + let sea_xmax = 20.0f32; + let sea_y = -2.5; + let sea_zmin = -2.0f32; + let sea_zmax = -27.0f32; + let sea_xstep = (sea_xmax - sea_xmin) / (SEA_XSIZE as f32); + let sea_zstep = (sea_zmax - sea_zmin) / (SEA_ZSIZE as f32); + println!("xstep={} ystep={:?}", sea_xstep, sea_zstep); + + let mut sea = [[Vector3::zero(); SEA_ZSIZE]; SEA_XSIZE]; + #[allow(clippy::needless_range_loop)] + for x in 0..SEA_XSIZE { + for z in 0..SEA_ZSIZE { + sea[x][z] = Vector3 { + x: sea_xmin + (x as f32) * sea_xstep, + y: sea_y, + z: sea_zmin + (z as f32) * sea_zstep, + }; + } + } - let mut camera = support::camera::CameraState::new(); - let mut t: f32 = 0.0; - let mut pause = false; - let mut bounding_box_enabled = true; - let mut fullscreen = true; + World { + mandelwow_program, + mandelwow_bbox: BoundingBox::new( + display, &mandelwow_bounds, bounding_box_program), + mandelwow_bounds, + bounding_box_enabled: true, - support::start_loop(|| { - camera.update(); + shaded_cube: ShadedCube::new(display, shaded_program), + text: text::Text::new(display), + sea, - if !pause { - // Increment time - t += 0.01; + hit_time: 0.0, + last_hit: 0.0, } + } - // These are the bounds of the 3D Mandelwow section which we render in 3-space. - let bounds = Cube { - xmin: -2.0, - xmax: 0.7, - ymin: -1.0, - ymax: 1.0, - zmin: -1.1, - zmax: 1.1, - }; + fn draw_frame( + &self, + display: &Display, + camera: &support::camera::CameraState, + t: f32, + ) { + let perspview = camera.get_perspview(); + + let hit_delta = t - self.hit_time; + let hit_scale = 1. / (1. + hit_delta * hit_delta * 15.0) + 1.; // Vary the wow factor to slice the Mandelwow along its 4th dimension. let wmin = -0.8; - let wmax = 0.8; + let wmax = 0.8; let wsize = wmax - wmin; let wow = (((t * 0.7).sin() + 1.0) / 2.0) * wsize + wmin; @@ -144,63 +121,221 @@ fn main() { let mut frame = display.draw(); frame.clear_color_and_depth((0.0, 0.0, 0.0, 1.0), 1.0); - let z_trans = -2.0; // Send the model back a little bit so it fits the screen. - let model = [ - [ t.cos(), t.sin(), 0.0, 0.0], - [-t.sin(), t.cos(), 0.0, 0.0], - [ 0.0, 0.0, 1.0, 0.0], - [ 0.0, 0.0, z_trans, 1.0f32] - ]; + let rotation = Matrix4::from(Euler { + x: Rad(t.sin() / 3.), + y: Rad(t.sin() / 2.), + z: Rad(t / 1.5), + }); + let z_trans = -3.0; // Send the model back a little bit so it fits the screen. + let scale = Matrix4::from_diagonal(Vector4::new(hit_scale, hit_scale, hit_scale, 1.0)); + let model2 = Matrix4::from_translation(Vector3::unit_z() * z_trans) * rotation * scale; + let model = array4x4(model2); // Draw the bounding box before the fractal, when the Z-buffer is still clear, // so the lines behind the semi-translucent areas will be drawn. - if bounding_box_enabled { + if self.bounding_box_enabled { let uniforms = uniform! { model: model, view: camera.get_view(), perspective: camera.get_perspective(), }; - bounding_box(&display, &mut frame, &bounding_box_program, &uniforms, &bounds); + self.mandelwow_bbox.draw(&mut frame, &uniforms); } - mandelwow::draw(&display, &mut frame, &mandelwow_program, model, &camera, &bounds, wow); - frame.finish().unwrap(); - - for ev in display.poll_events() { - match ev { - glium::glutin::Event::Closed | - KeyboardInput(Pressed, _, Some(VirtualKeyCode::Escape)) | - KeyboardInput(Pressed, _, Some(VirtualKeyCode::Q)) => { - return support::Action::Stop - }, - KeyboardInput(Pressed, _, Some(VirtualKeyCode::B)) => { - bounding_box_enabled ^= true; - }, - KeyboardInput(Pressed, _, Some(VirtualKeyCode::F)) => { - fullscreen ^= true; - if fullscreen { - glutin::WindowBuilder::new() - .with_fullscreen(glutin::get_primary_monitor()) - .rebuild_glium(&display).unwrap(); - } else { - glutin::WindowBuilder::new() - .rebuild_glium(&display).unwrap(); - } - }, - KeyboardInput(Pressed, _, Some(VirtualKeyCode::P)) => { - pause ^= true; - }, - KeyboardInput(Pressed, _, Some(VirtualKeyCode::PageUp)) => { - t += 0.01; - }, - KeyboardInput(Pressed, _, Some(VirtualKeyCode::PageDown)) => { - t -= 0.01; - }, - ev => camera.process_input(&ev), + let text_rot = Matrix4::from_angle_x(cgmath::Deg(-90.0f32)); + let text_pos = Matrix4::from_translation(Vector3 { + x: 0.0, + y: 0.501, + z: 0.0f32, + }) * text_rot; + for x in 0..SEA_XSIZE { + for z in 0..SEA_ZSIZE { + let wave = ((x as f32 / SEA_XSIZE as f32 * PI * 5.0 + t * 2.0).sin() + + (z as f32 / SEA_ZSIZE as f32 * PI * 3.0 + t * 3.0).sin()) + * 0.3; + let model = Matrix4::from_translation( + self.sea[x][z] + + Vector3 { + x: 0., + y: wave, + z: 0., + }, + ); + let uniforms = uniform! { + model: array4x4(model), + perspview: perspview, + col: [0., (1. - wave).abs() * 0.5, wave.abs()], + }; + self.shaded_cube.draw(&mut frame, &uniforms); + let model = model * text_pos; + let c = (x + z * SEA_XSIZE) as u8 as char; + self.text.draw(&mut frame, c, &model, &perspview); } } - support::Action::Continue + mandelwow::draw( + &display, + &mut frame, + &self.mandelwow_program, + model, + &camera, + &self.mandelwow_bounds, + wow, + ); + + frame.finish().unwrap(); + } +} + + +#[cfg(target_os = "emscripten")] +#[allow(non_camel_case_types)] +type em_callback_func = unsafe extern "C" fn(); +#[cfg(target_os = "emscripten")] +extern "C" { + fn emscripten_set_main_loop(func: em_callback_func, fps: c_int, simulate_infinite_loop: c_int); +} + +#[cfg(target_os = "emscripten")] +thread_local!(static MAIN_LOOP_CALLBACK: std::cell::RefCell<*mut c_void> = + std::cell::RefCell::new(std::ptr::null_mut())); + +#[cfg(target_os = "emscripten")] +pub fn set_main_loop_callback(callback: F) +where + F: FnMut() -> support::Action, +{ + MAIN_LOOP_CALLBACK.with(|log| { + *log.borrow_mut() = &callback as *const _ as *mut c_void; }); + unsafe { + emscripten_set_main_loop(wrapper::, 0, 1); + } + + unsafe extern "C" fn wrapper() + where + F: FnMut() -> support::Action, + { + MAIN_LOOP_CALLBACK.with(|z| { + let closure = *z.borrow_mut() as *mut F; + (*closure)(); + }); + } +} + +#[cfg(not(target_os = "emscripten"))] +pub fn set_main_loop_callback(callback: F) +where + F: FnMut() -> support::Action, +{ + support::start_loop(callback); +} + +//extern crate gleam; + +/* +extern "C" { + fn emscripten_GetProcAddress( + name: *const ::std::os::raw::c_char, + ) -> *const ::std::os::raw::c_void; +} +*/ + +fn main() { + /* + let gl = gleam::gl::GlesFns::load_with(|addr| { + let addr = std::ffi::CString::new(addr).unwrap(); + emscripten_GetProcAddress(addr.into_raw() as *const _) as *const _ + }); + gl.glGetInternalformativ(0, 0, 0, 0, 0); + */ + + let mut soundplayer = sound::start(); + + let event_loop = glutin::event_loop::EventLoop::new(); + let window = glutin::window::WindowBuilder::new() + //.with_dimensions(1280, 720) + .with_title("MandelWow"); + let context = glutin::ContextBuilder::new() + //.with_gl_profile(glutin::GlProfile::Core) + //.with_gl(glutin::GlRequest::Specific(glutin::Api::WebGl, (2, 0))) + .with_gl(glutin::GlRequest::Specific( + glutin::Api::OpenGlEs, + (3, 0), + )) + //.with_gl(glutin::GlRequest::Specific(glutin::Api::OpenGl, (4, 0))) + //.with_depth_buffer(24) + .with_vsync(true); + + let display = glium::Display::new(window, context, &event_loop).unwrap(); + gl_info(&display); + let mut world = World::new(&display); + + let mut timer = Timer::new(); + let mut camera = support::camera::CameraState::new(); + let mut fullscreen = false; + + event_loop.run(move |event, _, control_flow| { + let t = timer.t; + let new_hit = sound::hit_event(&mut soundplayer); + if new_hit > world.last_hit { + world.hit_time = t; + } + world.last_hit = new_hit; + + camera.update(); + + *control_flow = ControlFlow::WaitUntil(timer.now + Duration::from_nanos(16_666_667)); + match event { + Event::MainEventsCleared => { + timer.update(); + world.draw_frame(&display, &camera, t); + } + Event::NewEvents(cause) => { + match cause { + event::StartCause::ResumeTimeReached { .. } | event::StartCause::Init => { + // FIXME + }, + _ => {} + } + } + Event::WindowEvent { event, .. } => { + camera.process_input(&event); + match event { + WindowEvent::CloseRequested => *control_flow = ControlFlow::Exit, + WindowEvent::KeyboardInput { input, .. } => { + if input.state == event::ElementState::Pressed { + if let Some(key) = input.virtual_keycode { + match key { + VirtualKeyCode::Escape | VirtualKeyCode::Q => { + *control_flow = ControlFlow::Exit; + } + VirtualKeyCode::B => world.bounding_box_enabled ^= true, + VirtualKeyCode::P => timer.pause ^= true, + VirtualKeyCode::PageUp => timer.t += 0.1, + VirtualKeyCode::PageDown => timer.t -= 0.2, + VirtualKeyCode::F10 => screenshot::take_screenshot(&display), + VirtualKeyCode::F11 | VirtualKeyCode::Return => { + fullscreen ^= true; + let fs = if fullscreen { + // let monitor_handle = display.gl_window().window() + // .available_monitors().next().unwrap(); + Some(glium::glutin::window::Fullscreen::Borderless(None)) + } else { + None + }; + display.gl_window().window().set_fullscreen(fs); + } + _ => (), + } + } + } + } + _ => (), + } + }, + _ => (), + } + }); }