From c05c1dc1191f1ba74d480a748c6fffeb17b56c4b Mon Sep 17 00:00:00 2001
From: Carter Anderson <mcanders1@gmail.com>
Date: Tue, 1 Dec 2020 20:25:31 -0800
Subject: [PATCH] hidpi swap chains (#973)

hidpi swap chains
---
 .../src/render_graph/nodes/window_texture_node.rs         | 4 ++--
 crates/bevy_wgpu/src/wgpu_type_converter.rs               | 4 ++--
 crates/bevy_window/src/window.rs                          | 8 ++++++++
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/crates/bevy_render/src/render_graph/nodes/window_texture_node.rs b/crates/bevy_render/src/render_graph/nodes/window_texture_node.rs
index dc6ee403f3..e3a4d79409 100644
--- a/crates/bevy_render/src/render_graph/nodes/window_texture_node.rs
+++ b/crates/bevy_render/src/render_graph/nodes/window_texture_node.rs
@@ -68,8 +68,8 @@ impl Node for WindowTextureNode {
                 render_resource_context.remove_texture(old_texture);
             }
 
-            self.descriptor.size.width = window.width();
-            self.descriptor.size.height = window.height();
+            self.descriptor.size.width = window.scaled_width();
+            self.descriptor.size.height = window.scaled_height();
             let texture_resource = render_resource_context.create_texture(self.descriptor);
             output.set(WINDOW_TEXTURE, RenderResourceId::Texture(texture_resource));
         }
diff --git a/crates/bevy_wgpu/src/wgpu_type_converter.rs b/crates/bevy_wgpu/src/wgpu_type_converter.rs
index 9258c03a5f..d1e5d4f996 100644
--- a/crates/bevy_wgpu/src/wgpu_type_converter.rs
+++ b/crates/bevy_wgpu/src/wgpu_type_converter.rs
@@ -564,8 +564,8 @@ impl WgpuFrom<&Window> for wgpu::SwapChainDescriptor {
         wgpu::SwapChainDescriptor {
             usage: wgpu::TextureUsage::OUTPUT_ATTACHMENT,
             format: TextureFormat::default().wgpu_into(),
-            width: window.width(),
-            height: window.height(),
+            width: window.scaled_width(),
+            height: window.scaled_height(),
             present_mode: if window.vsync() {
                 wgpu::PresentMode::Mailbox
             } else {
diff --git a/crates/bevy_window/src/window.rs b/crates/bevy_window/src/window.rs
index 9ce9917948..9501ef3d26 100644
--- a/crates/bevy_window/src/window.rs
+++ b/crates/bevy_window/src/window.rs
@@ -125,6 +125,14 @@ impl Window {
         self.width
     }
 
+    pub fn scaled_width(&self) -> u32 {
+        (self.width as f64 * self.scale_factor) as u32
+    }
+
+    pub fn scaled_height(&self) -> u32 {
+        (self.height as f64 * self.scale_factor) as u32
+    }
+
     #[inline]
     pub fn height(&self) -> u32 {
         self.height