wip

Cargo.toml

@@ -21,6 +21,9 @@ openvr_sys = "*"
 piston = "*"
 piston_window = "*"
 
+# for pose-relay
+byteorder = "*"
+
 [profile.release]
 lto = true
 panic = "abort"

src/bin/vrtue.rs

@@ -1,6 +1,6 @@
 extern crate vrtue;
-use vrtue::{scenes, view, vr};
+use vrtue::{context, scenes, view, vr};
-use vrtue::scene::{Event, Scene};
+use vrtue::engine::{Event, Scene};
 
 extern crate env_logger;
 extern crate gfx_device_gl;
@@ -12,7 +12,6 @@ use self::piston::input::{Button, Input, Key};
 use self::piston_window::{PistonWindow, Window, WindowSettings};
 use std::env;
 
-
 pub fn main() {
   env_logger::init().expect("env logger");
   let mut vr = match env::var("NO_VR") {
@@ -33,11 +32,14 @@ pub fn main() {
   let view = view::ViewRoot::<gfx_device_gl::Device, view::ColorFormat, view::DepthFormat>
                            ::create_view(&mut window, &mut vr);
 
+  let mut game = context::VrtueRootContext::new(&mut window.device,
+                                                &mut window.factory,
+                                                &mut aux_command);
   'main:
   //while let Some(_) = window.next() {
   loop {
-    scene.update(&mut vr, &mut window.encoder);
+    scene.update(&mut game, &mut vr, &mut window.encoder);
-    view.draw(&mut window, &mut vr, &scene);
+    view.draw(&mut game, &mut window, &mut vr, &scene);
 
     // handle window events
     while let Some(ev) = window.poll_event() {

src/context.rs

@@ -0,0 +1,77 @@
+use ega;
+use engine;
+
+use std::io::Read;
+use std::marker::PhantomData;
+use std::path::Path;
+
+use gfx::{self, CommandBuffer};
+use gfx::memory::Typed;
+use gfx::texture;
+
+const TILEDIM: u16 = 16;
+
+pub struct VrtueRootContext<D, F, T>
+  where D: gfx::Device,
+        F: gfx::Factory<D::Resources>,
+        T: gfx::format::TextureFormat {
+
+  tiles: gfx::handle::ShaderResourceView<D::Resources, T::View>,
+  _factory: PhantomData<F>
+}
+
+impl<D, F, T> engine::GameContext for VrtueRootContext<D, F, T>
+  where D: gfx::Device,
+        F: gfx::Factory<D::Resources>,
+        T: gfx::format::TextureFormat {}
+
+impl<D, F, T> VrtueRootContext<D, F, T>
+  where D: gfx::Device,
+        F: gfx::Factory<D::Resources>,
+        T: gfx::format::TextureFormat,
+        T::View: Clone {
+
+  pub fn new(device: &mut D,
+             factory: &mut F,
+             command: &mut <D as gfx::Device>::CommandBuffer) -> VrtueRootContext<D, F, T> {
+    VrtueRootContext {
+      tiles: Self::make_tiles(device, factory, command),
+      _factory: PhantomData
+    }
+  }
+
+  pub fn tiles(&self) -> gfx::handle::ShaderResourceView<D::Resources, T::View> {
+    self.tiles.clone()
+  }
+
+  fn make_tiles(device: &mut D,
+                factory: &mut F,
+                command: &mut <D as gfx::Device>::CommandBuffer)
+                -> gfx::handle::ShaderResourceView<D::Resources, T::View> {
+    let filename = "data/SHAPES.EGA";
+    let mut file = ::std::fs::File::open(Path::new(filename))
+      .expect(&format!("failed opening tiles file: {}", filename));
+    let mut ega_bytes = Vec::new();
+    file.read_to_end(&mut ega_bytes).expect("Read tiles file");
+    let ega_page = ega::decode(&ega_bytes, ega::Compression::Uncompressed, ega::Tiling::Tiled(TILEDIM));
+    let mipmap = ega_page.mipmap(2);
+
+    let tex = factory.create_texture_immutable_u8::<T>(texture::Kind::D2Array(mipmap.dim as u16,
+                                                                              mipmap.dim as u16,
+                                                                              mipmap.len as u16,
+                                                                              texture::AaMode::Single),
+                                                       &mipmap.slices())
+                     .expect("create tile texture");
+
+    {
+      let mut manager = gfx::handle::Manager::<D::Resources>::new();
+    // XXX: Find out if Textures need to be/can be fenced like Buffers,
+    //      Seems like I should mark tex.1 as being read/written, but it's not a Buffer?
+    let access = gfx::pso::AccessInfo::new();
+      let view = manager.ref_srv(tex.1.raw());
+      command.generate_mipmap(*view);
+      device.submit(command, &access);
+    }
+    tex.1
+  }
+}

src/engine.rs

@@ -0,0 +1,30 @@
+use gfx;
+use na;
+use piston;
+use view;
+use vr;
+
+pub trait GameContext {}
+
+pub trait Scene<G: GameContext,
+                D: gfx::Device,
+                F: gfx::Factory<D::Resources>> {
+  fn event(&mut self, event: Event);
+  fn update(&mut self,
+            game: &mut G,
+            vr: &mut Option<vr::VR>,  // TODO: abstract this out
+            encoder: &mut gfx::Encoder<D::Resources, D::CommandBuffer>);
+  fn render(&self,
+            game: &mut G,
+            trans: &gfx::handle::Buffer<D::Resources, view::Trans>,
+            target: &gfx::handle::RenderTargetView<D::Resources, view::ColorFormat>,
+            depth: &gfx::handle::DepthStencilView<D::Resources, view::DepthFormat>,
+            factory: &mut F,
+            encoder: &mut gfx::Encoder<D::Resources, D::CommandBuffer>);
+  fn origin(&self) -> na::Matrix4<f32>;
+}
+
+pub enum Event {
+  Vr(vr::Event),
+  Piston(piston::input::Input),
+}

src/lib.rs

@@ -7,8 +7,9 @@ extern crate num_traits;
 extern crate piston;
 
 pub mod arena;
+pub mod context;
 pub mod ega;
-pub mod scene;
+pub mod engine;
 pub mod scenes;
 pub mod tile;
 pub mod town;

src/scenes/world.rs

@@ -1,5 +1,5 @@
-use scene;
+use context::VrtueRootContext;
-use tile;
+use engine;
 use view;
 use vr;
 use world as model;
@@ -54,7 +54,7 @@ gfx_defines! {
     trans: gfx::ConstantBuffer<::view::Trans> = "b_trans",
     constants: gfx::ConstantBuffer<Constants> = "b_constants",
     locals: gfx::ConstantBuffer<Locals> = "b_locals",
-    atlas: gfx::TextureSampler<[f32; 4]> = "t_tiles",
+    tiles: gfx::TextureSampler<[f32; 4]> = "t_tiles",
     pixcolor: gfx::RenderTarget<::view::ColorFormat> = "pixcolor",
     depth: gfx::DepthTarget<::view::DepthFormat> = gfx::preset::depth::LESS_EQUAL_WRITE,
   }
@@ -125,8 +125,6 @@ pub struct WorldScene<D: gfx::Device,
   constants_buffer: gfx::handle::Buffer<D::Resources, Constants>,
   constants_dirty: bool,
   locals: gfx::handle::Buffer<D::Resources, Locals>,
-  atlas: gfx::handle::ShaderResourceView<D::Resources,
-                                         <view::ColorFormat as gfx::format::Formatted>::View>,
   sampler: gfx::handle::Sampler<D::Resources>,
   f: PhantomData<F>,
 
@@ -142,10 +140,11 @@ pub struct WorldScene<D: gfx::Device,
   lng: u8,
 }
 
-impl<D: gfx::Device, F: gfx::Factory<D::Resources>> WorldScene<D, F> {
+impl<D: gfx::Device,
-  pub fn new(device: &mut D,
+     F: gfx::Factory<D::Resources>> WorldScene<D, F> {
+  pub fn new(_device: &mut D,
              factory: &mut F,
-             aux_command: &mut <D as gfx::Device>::CommandBuffer) -> WorldScene<D, F> {
+             _aux_command: &mut <D as gfx::Device>::CommandBuffer) -> WorldScene<D, F> {
     let worldmap = get_data_model();
     let (model, model_idx) = get_model(&worldmap);
     let (vertex_buffer, slice) =
@@ -163,7 +162,6 @@ impl<D: gfx::Device, F: gfx::Factory<D::Resources>> WorldScene<D, F> {
       constants_buffer: factory.create_constant_buffer(1),
       constants_dirty: true,
       locals: factory.create_constant_buffer(1),
-      atlas: tile::get_tiles::<_, _, view::ColorFormat>(device, factory, aux_command),
       sampler: factory.create_sampler(texture::SamplerInfo::new(texture::FilterMethod::Jrd,
                                                                 texture::WrapMode::Tile)),
       f: PhantomData,
@@ -197,10 +195,12 @@ const ANIMDATA: [u32; 4] =
    0];
 
 impl<D: gfx::Device,
-     F: gfx::Factory<D::Resources>> scene::Scene<D, F> for WorldScene<D, F> {
+     F: gfx::Factory<D::Resources>>
+  engine::Scene<VrtueRootContext<D, F, view::ColorFormat>, D, F>
+  for WorldScene<D, F> {
 
-  fn event(&mut self, event: scene::Event) {
+  fn event(&mut self, event: engine::Event) {
-    use scene::Event::*;
+    use engine::Event::*;
     use vr::Event::*;
     match event {
       // treadmill / camera movement registration
@@ -276,6 +276,7 @@ impl<D: gfx::Device,
   }
 
   fn update(&mut self,
+            _game: &mut VrtueRootContext<D, F, view::ColorFormat>,
             vr: &mut Option<vr::VR>,
             encoder: &mut gfx::Encoder<D::Resources, D::CommandBuffer>) {
     const NANOS_PER_MILLI: u32 = 1_000_000;
@@ -334,11 +335,12 @@ impl<D: gfx::Device,
   }
 
   fn render(&self,
-            _factory: &mut F,
+            game: &mut VrtueRootContext<D, F, view::ColorFormat>,
-            encoder: &mut gfx::Encoder<D::Resources, D::CommandBuffer>,
             trans: &gfx::handle::Buffer<D::Resources, view::Trans>,
             target: &gfx::handle::RenderTargetView<D::Resources, view::ColorFormat>,
-            depth: &gfx::handle::DepthStencilView<D::Resources, view::DepthFormat>) {
+            depth: &gfx::handle::DepthStencilView<D::Resources, view::DepthFormat>,
+            _factory: &mut F,
+            encoder: &mut gfx::Encoder<D::Resources, D::CommandBuffer>) {
 
     encoder.clear(&target, SKY_COLOR);
     encoder.clear_depth(&depth, 1.0);
@@ -347,7 +349,7 @@ impl<D: gfx::Device,
       trans: trans.clone(),
       constants: self.constants_buffer.clone(),
       locals: self.locals.clone(),
-      atlas: (self.atlas.clone(), self.sampler.clone()),
+      tiles: (game.tiles(), self.sampler.clone()),
       pixcolor: target.clone(),
       depth: depth.clone(),
     };

src/tile.rs

@@ -1,55 +1,9 @@
-use ega;
-
-use ::std;
-use std::io::Read;
-use std::path::Path;
-
-use gfx::{self, texture, CommandBuffer};
-use gfx::memory::Typed;
-
-const TILEDIM: u16 = 16;
-
 #[repr(C)]
 #[derive(Clone, Copy)]
 pub struct Tile {
   pub val: u8,
 }
 
-pub fn get_tiles<D, F, T>(device: &mut D,
-                          factory: &mut F,
-                          command: &mut <D as gfx::Device>::CommandBuffer)
-                          -> gfx::handle::ShaderResourceView<D::Resources, T::View>
-  where D: gfx::Device,
-        F: gfx::Factory<D::Resources>,
-        T: gfx::format::TextureFormat {
-  let filename = "data/SHAPES.EGA";
-  let mut file = std::fs::File::open(Path::new(filename))
-    .expect(&format!("failed opening tiles file: {}", filename));
-  let mut ega_bytes = Vec::new();
-  file.read_to_end(&mut ega_bytes).expect("Read tiles file");
-  let ega_page = ega::decode(&ega_bytes, ega::Compression::Uncompressed, ega::Tiling::Tiled(TILEDIM));
-  let mipmap = ega_page.mipmap(2);
-
-  let tex = factory.create_texture_immutable_u8::<T>(texture::Kind::D2Array(mipmap.dim as u16,
-                                                                            mipmap.dim as u16,
-                                                                            mipmap.len as u16,
-                                                                            texture::AaMode::Single),
-                                                     &mipmap.slices())
-      .expect("create tile texture");
-
-  {
-    let mut manager = gfx::handle::Manager::<D::Resources>::new();
-    // XXX: Find out if Textures need to be/can be fenced like Buffers,
-    //      Seems like I should mark tex.1 as being read/written, but it's not a Buffer?
-    let access = gfx::pso::AccessInfo::new();
-    let view = manager.ref_srv(tex.1.raw());
-    command.generate_mipmap(*view);
-    device.submit(command, &access);
-  }
-  tex.1
-}
-
-
 
 impl Tile {
   pub fn as_char(&self) -> char {

src/view.rs

@@ -1,3 +1,4 @@
+use engine::{GameContext, Scene};
 use vr::{self, AsMatrix4, VR};
 
 extern crate gfx_device_gl;
@@ -64,10 +65,11 @@ impl ViewRoot<gfx_device_gl::Device, ColorFormat, DepthFormat> {
     }
   }
 
-  pub fn draw(&self,
+  pub fn draw<G: GameContext>(&self,
-              window: &mut PistonWindow,
+                              game: &mut G,
-              vr: &mut Option<vr::VR>,
+                              window: &mut PistonWindow,
-              scene: &::scene::Scene<gfx_device_gl::Device, gfx_device_gl::Factory>) {
+                              vr: &mut Option<vr::VR>,
+                              scene: &Scene<G, gfx_device_gl::Device, gfx_device_gl::Factory>) {
     if let &mut Some(ref mut vr) = vr {
       // Get the current sensor state
       let poses = vr.poses();
@@ -88,11 +90,12 @@ impl ViewRoot<gfx_device_gl::Device, ColorFormat, DepthFormat> {
                             matrix: *(proj_mat * viewmodel_mat).as_ref() };
         window.encoder.update_constant_buffer(&self.trans, &trans);
 
-        scene.render(&mut window.factory,
+        scene.render(game,
-                     &mut window.encoder,
                      &self.trans,
                      &target,
-                     &depth);
+                     &depth,
+                     &mut window.factory,
+                     &mut window.encoder);
       }
     } else {
       // If running without VR, just draw from some default projection near the scene origin
@@ -107,11 +110,12 @@ impl ViewRoot<gfx_device_gl::Device, ColorFormat, DepthFormat> {
       window.encoder.update_constant_buffer(&self.trans, &trans);
     }
     // draw monitor window
-    scene.render(&mut window.factory,
+    scene.render(game,
-                 &mut window.encoder,
                  &self.trans,
                  &window.output_color,
-                 &window.output_stencil);
+                 &window.output_stencil,
+                 &mut window.factory,
+                 &mut window.encoder);
 
     window.encoder.flush(&mut window.device);
     if let (&mut Some(ref mut vr),