stuff i forgor in earlier commits (state 4.1.25)

crates/game/src/main.rs

@@ -70,15 +70,18 @@ impl WinitState {
             window.demo_app.ui(&window.egui_platform.context());
             let output = window.egui_platform.end_pass(Some(&window.window));
 
-            self.renderer
-                .draw_egui(&window.egui_platform.context(), output)
-                .unwrap();
+            // self.renderer
+            //     .draw_egui(&window.egui_platform.context(), output)
+            //     .unwrap();
 
             // rendering
             self.renderer
-                .debug_draw(&window_id, || {
+                .debug_draw_egui(&window_id, &window.egui_platform.context(), output, || {
                     window.window.pre_present_notify();
                 })
+                .inspect_err(|err| {
+                    tracing::error!("error encountered while drawing: {err}");
+                })
                 .expect("drawing");
             window.window.request_redraw();
         }

crates/renderer/src/lib.rs

@@ -88,6 +88,7 @@ mod texture {
     }
 }
 
+use render_graph::Access;
 use util::Rgba;
 
 #[derive(Debug, thiserror::Error)]
@@ -1295,7 +1296,7 @@ impl Vulkan {
             )],
         )?;
 
-        tracing::debug!("pdev: {pdev:?}");
+        tracing::trace!("pdev: {pdev:?}");
         let device = Device::new(instance.clone(), pdev, features)?;
 
         Ok(Self {
@@ -2241,7 +2242,7 @@ impl<W> Renderer<W> {
                     );
                     self.texture_handler
                         .insert_image_with_id(id, texture.clone());
-                    tracing::debug!("new texture for egui: {egui_id:?} -> {id:?}");
+                    tracing::trace!("new texture for egui: {egui_id:?} -> {id:?}");
                 }
 
                 (staging, texture)
@@ -2501,6 +2502,85 @@ impl<W> Renderer<W> {
         Ok(())
     }
 
+    pub fn debug_draw_egui<K, F>(
+        &mut self,
+        window: &K,
+        egui_ctx: &egui::Context,
+        output: egui::FullOutput,
+        pre_present_cb: F,
+    ) -> Result<()>
+    where
+        K: core::hash::Hash + Eq,
+        W: core::hash::Hash + Eq + Borrow<K>,
+        F: FnOnce(),
+    {
+        let dev = self.vulkan.device.clone();
+
+        if let Some(ctx) = self.window_contexts.get(window) {
+            let (frame, suboptimal) =
+                smol::block_on(ctx.current_swapchain.read().clone().acquire_image())?;
+
+            if suboptimal {
+                tracing::warn!(
+                    "swapchain ({:?}) is suboptimal!",
+                    ctx.current_swapchain.read().swapchain
+                );
+            }
+
+            let [r, g, b] = rand::prelude::StdRng::seed_from_u64(ctx.surface.surface.as_raw())
+                .gen::<[f32; 3]>();
+            let clear_color = Rgba([r, g, b, 1.0]);
+
+            let mut rg = render_graph::RenderGraph::new();
+            let (textures_to_remove, cmds) = util::timed("record command buffer", || {
+                let framebuffer = rg.import_image(frame.image.clone(), Access::undefined());
+                rg.mark_as_output(framebuffer);
+
+                render_graph::clear_pass(&mut rg, clear_color, framebuffer);
+                egui_pass::egui_pre_pass(
+                    &dev,
+                    &mut rg,
+                    &mut self.texture_handler,
+                    &mut self.egui_state,
+                    &output,
+                )?;
+
+                let textures_to_remove = egui_pass::egui_pass(
+                    &dev,
+                    &mut rg,
+                    &mut self.texture_handler,
+                    &mut self.vulkan.samplers,
+                    &mut self.egui_state,
+                    egui_ctx,
+                    output,
+                    framebuffer,
+                )?;
+                render_graph::present_pass(&mut rg, framebuffer);
+
+                Result::Ok((textures_to_remove, rg.resolve(dev.clone())?))
+            })?;
+
+            let future = cmds.submit(
+                Some((frame.acquire, vk::PipelineStageFlags::TRANSFER)),
+                Some(frame.release),
+                Arc::new(sync::Fence::create(dev.clone())?),
+            )?;
+
+            // call pre_present_notify
+            pre_present_cb();
+
+            let wait = Some(frame.release);
+            frame.present(wait)?;
+            future.block()?;
+
+            for id in textures_to_remove {
+                self.texture_handler.remove_texture(id);
+            }
+        }
+
+        Ok(())
+    }
+
     pub fn debug_draw<K, F: FnOnce()>(&mut self, window: &K, pre_present_cb: F) -> Result<()>
     where
         K: core::hash::Hash + Eq,