First pass of character data viewer

src/app.rs

@@ -19,7 +19,10 @@ use crate::{
     emulator::{EmulatorClient, EmulatorCommand, SimId},
     input::MappingProvider,
     persistence::Persistence,
-    window::{AboutWindow, AppWindow, GameWindow, GdbServerWindow, InputWindow},
+    vram::VramLoader,
+    window::{
+        AboutWindow, AppWindow, CharacterDataWindow, GameWindow, GdbServerWindow, InputWindow,
+    },
 };
 
 fn load_icon() -> anyhow::Result<IconData> {
@@ -36,6 +39,7 @@ fn load_icon() -> anyhow::Result<IconData> {
 pub struct Application {
     icon: Option<Arc<IconData>>,
     wgpu: WgpuState,
+    vram: Arc<VramLoader>,
     client: EmulatorClient,
     proxy: EventLoopProxy<UserEvent>,
     mappings: MappingProvider,
@@ -65,6 +69,7 @@ impl Application {
         Self {
             icon,
             wgpu,
+            vram: Arc::new(VramLoader::new(client.clone())),
             client,
             proxy,
             mappings,
@@ -83,7 +88,13 @@ impl Application {
         }
         self.viewports.insert(
             viewport_id,
-            Viewport::new(event_loop, &self.wgpu, self.icon.clone(), window),
+            Viewport::new(
+                event_loop,
+                &self.wgpu,
+                self.icon.clone(),
+                self.vram.clone(),
+                window,
+            ),
         );
     }
 }
@@ -197,6 +208,10 @@ impl ApplicationHandler<UserEvent> for Application {
                 let about = AboutWindow;
                 self.open(event_loop, Box::new(about));
             }
+            UserEvent::OpenCharacterData(sim_id) => {
+                let vram = CharacterDataWindow::new(sim_id);
+                self.open(event_loop, Box::new(vram));
+            }
             UserEvent::OpenDebugger(sim_id) => {
                 let debugger =
                     GdbServerWindow::new(sim_id, self.client.clone(), self.proxy.clone());
@@ -308,6 +323,7 @@ impl Viewport {
         event_loop: &ActiveEventLoop,
         wgpu: &WgpuState,
         icon: Option<Arc<IconData>>,
+        vram: Arc<VramLoader>,
         mut app: Box<dyn AppWindow>,
     ) -> Self {
         let ctx = Context::default();
@@ -329,6 +345,7 @@ impl Viewport {
             s.visuals.menu_rounding = Default::default();
         });
         egui_extras::install_image_loaders(&ctx);
+        ctx.add_image_loader(vram);
 
         let wgpu_config = egui_wgpu::WgpuConfiguration {
             present_mode: wgpu::PresentMode::AutoNoVsync,
@@ -455,6 +472,7 @@ impl Drop for Viewport {
 pub enum UserEvent {
     GamepadEvent(gilrs::Event),
     OpenAbout,
+    OpenCharacterData(SimId),
     OpenDebugger(SimId),
     OpenInput,
     OpenPlayer2,