From 9df8a4d197e66accb389edb5a5c54117933f157e Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Sun, 28 Jun 2026 00:09:06 +0200
Subject: feat(engine): add windowing DPI utilities

---
 engine/src/rendering/backend/opengl.rs | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

(limited to 'engine/src/rendering/backend')

diff --git a/engine/src/rendering/backend/opengl.rs b/engine/src/rendering/backend/opengl.rs
index c1e4823..f8be5b4 100644
--- a/engine/src/rendering/backend/opengl.rs
+++ b/engine/src/rendering/backend/opengl.rs
@@ -2,6 +2,7 @@
 
 use std::borrow::Cow;
 use std::collections::HashMap;
+use std::num::NonZero;
 
 use ecs::query::term::With;
 use glutin::config::Config as GlutinConfig;
@@ -119,6 +120,7 @@ use crate::texture::{
 };
 use crate::util::OptionExt;
 use crate::vector::{Vec2, Vec3};
+use crate::windowing::dpi::PhysicalSize;
 use crate::windowing::window::{
     Closed as WindowClosed,
     CreationAttributes as WindowCreationAttributes,
@@ -151,7 +153,7 @@ struct GraphicsContext
 struct GraphicsContextSurface
 {
     window_surface: GlutinSurface<GlutinWindowSurface>,
-    size: Dimens<u32>,
+    size: PhysicalSize<u32>,
 }
 
 #[derive(Debug)]
@@ -299,7 +301,7 @@ fn init_window_graphics(
                 }
             };
 
-        let Some(window_inner_size) = window.inner_size.clone().try_into_nonzero() else {
+        let Ok(window_inner_size) = PhysicalSize::<NonZero<u32>>::try_convert_from(window.inner_size.clone()) else {
             tracing::error!(
                 "Cannot create a surface for a window with a width/height of 0",
             );
@@ -349,7 +351,10 @@ fn init_window_graphics(
         if let Err(err) = gl_set_viewport(
             &gl_context,
             &Vec2 { x: 0, y: 0 }.into(),
-            &window.inner_size.clone().into(),
+            &opengl_bindings::data_types::Dimens {
+                width: window.inner_size.width,
+                height: window.inner_size.height
+            }
         ) {
             tracing::error!("Failed to set viewport: {err}");
         }
@@ -467,7 +472,10 @@ fn handle_commands(
                 if let Err(err) = gl_set_viewport(
                     gl_context,
                     &Vec2 { x: 0, y: 0 }.into(),
-                    &surface.size.into(),
+                    &opengl_bindings::data_types::Dimens {
+                        width: surface.size.width,
+                        height: surface.size.height
+                    }
                 ) {
                     tracing::error!("Failed to set viewport: {err}");
                 }
@@ -487,7 +495,10 @@ fn handle_commands(
                 if let Err(err) = gl_set_viewport(
                     gl_context,
                     &Vec2 { x: 0, y: 0 }.into(),
-                    &surface.size.into(),
+                    &opengl_bindings::data_types::Dimens {
+                        width: surface.size.width,
+                        height: surface.size.height
+                    }
                 ) {
                     tracing::error!("Failed to set viewport: {err}");
                 }
-- 
cgit v1.2.3-18-g5258