Play some music!

[mandelwow.git] / mandelwow.rs

diff --git a/mandelwow.rs b/mandelwow.rs
index fc6bcf768b5dc3318186885f84c7df1ccde8da7b..72e3f8690de7745e05c38180bc5fc901ec67b5a6 100644 (file)
--- a/mandelwow.rs
+++ b/mandelwow.rs
@@ -4,11 +4,18 @@
 
 extern crate glium;
 extern crate glutin;
-
-use glium::DisplayBuild;
-use glium::Surface;
-use glium::index::PrimitiveType;
-use glium::index::IndexBuffer;
+extern crate libxm;
+extern crate sdl2;
+
+use glium::{DisplayBuild, Surface};
+use glium::index::{IndexBuffer, PrimitiveType};
+use glutin::ElementState::Pressed;
+use glutin::Event::KeyboardInput;
+use glutin::VirtualKeyCode;
+use libxm::XMContext;
+use sdl2::audio::{AudioCallback, AudioDevice, AudioSpecDesired};
+use std::fs::File;
+use std::io::Read;
 
 mod support;
 
@@ -149,7 +156,15 @@ fn bounding_box<U>(display: &glium::Display,
     ];
     let vb = glium::VertexBuffer::new(display, &cube).unwrap();
 
-    let params = Default::default();
+    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();
@@ -260,17 +275,69 @@ fn mandelwow(display: &glium::Display,
     }
 }
 
+struct XmCallback {
+    xm: XMContext,
+}
+
+impl AudioCallback for XmCallback {
+    type Channel = f32;
+
+    fn callback(&mut self, out: &mut [f32]) {
+        self.xm.generate_samples(out);
+    }
+}
+
+struct SoundPlayer {
+    _device: AudioDevice<XmCallback>,
+}
+
+fn play_xm(raw_xm: &[u8]) -> SoundPlayer {
+    let sdl_context = sdl2::init().unwrap();
+    let sdl_audio = sdl_context.audio().unwrap();
+
+    let sample_rate = 48000u32;
+    let desired_spec = AudioSpecDesired {
+        freq: Some(sample_rate as i32),
+        channels: Some(2u8),
+        samples: None,
+    };
+    let device = sdl_audio.open_playback(None, &desired_spec, |actual_spec| {
+        let xm = XMContext::new(&raw_xm, actual_spec.freq as u32).unwrap();
+
+        XmCallback {
+            xm: xm,
+        }
+    }).unwrap();
+
+    device.resume();
+
+    SoundPlayer {
+        _device: device,
+    }
+}
+
 fn main() {
+    let mut xm = Vec::new();
+    File::open("flora.xm").unwrap().read_to_end(&mut xm).unwrap();
+    let _sound_player = play_xm(&xm);
+
     let display = glium::glutin::WindowBuilder::new()
-        .with_dimensions(1024, 768)
+        //.with_dimensions(1024, 768)
+        .with_fullscreen(glutin::get_primary_monitor())
         .with_depth_buffer(24)
+        .with_vsync()
         .with_title(format!("MandelWow"))
         .build_glium()
         .unwrap();
 
+    let program = mandelwow_program(&display);
+    let bounding_box_program = solid_fill_program(&display);
+
     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;
 
     support::start_loop(|| {
         camera.update();
@@ -309,38 +376,55 @@ fn main() {
             [     0.0,  0.0,      z_trans, 1.0f32]
         ];
 
-        let program = mandelwow_program(&display);
-        let bounding_box_program = solid_fill_program(&display);
+        // 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 {
+            let uniforms = uniform! {
+                model: model,
+                view:  camera.get_view(),
+                perspective: camera.get_perspective(),
+            };
+            bounding_box(&display, &mut frame, &bounding_box_program, &uniforms, &bounds);
+        }
 
         mandelwow(&display, &mut frame, &program, model, &camera, &bounds, wow);
-
-        let uniforms = uniform! {
-            model: model,
-            view:  camera.get_view(),
-            perspective: camera.get_perspective(),
-        };
-        bounding_box(&display, &mut frame, &bounding_box_program, &uniforms, &bounds);
+        frame.finish().unwrap();
 
         for ev in display.poll_events() {
             match ev {
-                glium::glutin::Event::Closed => {
-                    frame.finish().unwrap();
+                glium::glutin::Event::Closed |
+                KeyboardInput(Pressed, _, Some(VirtualKeyCode::Escape)) |
+                KeyboardInput(Pressed, _, Some(VirtualKeyCode::Q)) => {
                     return support::Action::Stop
                 },
-                glutin::Event::KeyboardInput(glutin::ElementState::Pressed, _, Some(glutin::VirtualKeyCode::PageUp)) => {
-                    t += 0.01;
+                KeyboardInput(Pressed, _, Some(VirtualKeyCode::B)) => {
+                    bounding_box_enabled ^= true;
                 },
-                glutin::Event::KeyboardInput(glutin::ElementState::Pressed, _, Some(glutin::VirtualKeyCode::PageDown)) => {
-                    t -= 0.01;
+                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();
+                    }
                 },
-                glutin::Event::KeyboardInput(glutin::ElementState::Pressed, _, Some(glutin::VirtualKeyCode::P)) => {
+                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),
             }
         }
 
-        frame.finish().unwrap();
         support::Action::Continue
     });
+
 }