texture freeing + render updates done a bit nicer

src/render/mod.rs

@@ -1,7 +1,7 @@
 use std::num::NonZero;
 
 use crate::{
-    Ui, UiRenderUpdates,
+    Ui,
     render::{data::PrimitiveInstance, texture::GpuTextures, util::ArrBuf},
 };
 use data::WindowUniform;
@@ -21,7 +21,6 @@ pub use primitive::*;
 const SHAPE_SHADER: &str = include_str!("./shader.wgsl");
 
 pub struct UiRenderer {
-    uniform_layout: BindGroupLayout,
     uniform_group: BindGroup,
     primitive_layout: BindGroupLayout,
     primitive_group: BindGroup,
@@ -33,8 +32,6 @@ pub struct UiRenderer {
     window_buffer: Buffer,
     instance: ArrBuf<PrimitiveInstance>,
     primitives: PrimitiveBuffers,
-
-    limits: UiLimits,
     textures: GpuTextures,
 }
 
@@ -51,14 +48,15 @@ impl UiRenderer {
         pass.draw(0..4, 0..self.instance.len() as u32);
     }
 
-    pub fn update(&mut self, device: &Device, queue: &Queue, updates: UiRenderUpdates) {
-        if let Some(primitives) = updates.primitives {
-            self.instance.update(device, queue, &primitives.instances);
-            self.primitives.update(device, queue, &primitives.data);
+    pub fn update<Ctx>(&mut self, device: &Device, queue: &Queue, ui: &mut Ui<Ctx>) {
+        if ui.primitives.updated {
+            self.instance
+                .update(device, queue, &ui.primitives.instances);
+            self.primitives.update(device, queue, &ui.primitives.data);
             self.primitive_group =
                 Self::primitive_group(device, &self.primitive_layout, self.primitives.buffers())
         }
-        if self.textures.apply(updates.textures) {
+        if self.textures.update(&mut ui.textures) {
             self.rsc_group = Self::rsc_group(device, &self.rsc_layout, &self.textures)
         }
     }
@@ -179,7 +177,6 @@ impl UiRenderer {
         });
 
         Self {
-            uniform_layout,
             uniform_group,
             primitive_layout,
             primitive_group,
@@ -189,7 +186,6 @@ impl UiRenderer {
             window_buffer,
             instance,
             primitives,
-            limits,
             textures: tex_manager,
         }
     }