Cache Vello render output as stitchable textures (#3722)

* WIP render caching

* Hook up render cache to render pipeline

* Fixed offsets

* Initial cleanup

* Integrate cache with context invalidation

* Cleanup

* Improve rounding and reduce tile size to fix vello not rendering

* Include pointer position in cache key

* Avoid unwraps and zero sized textures

* Destroy textures after blitting to surface

* Fix context dependencies

* Exclude footprint from render params

* Batch animation frame messages

* Add vello max render size to preference dialogue

* Remove unused import

* Reorder vello preference

* Clean up preferences dialog

* Apply review suggestions

* Cap max render region size

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>

editor/src/messages/preferences/preferences_message_handler.rs

@@ -5,6 +5,7 @@ use crate::messages::preferences::SelectionMode;
 use crate::messages::prelude::*;
 use crate::messages::tool::utility_types::ToolType;
 use graph_craft::wasm_application_io::EditorPreferences;
+use graphene_std::application_io::GetEditorPreferences;
 
 #[derive(ExtractField)]
 pub struct PreferencesMessageContext<'a> {
@@ -16,12 +17,13 @@ pub struct PreferencesMessageContext<'a> {
 pub struct PreferencesMessageHandler {
 	pub selection_mode: SelectionMode,
 	pub zoom_with_scroll: bool,
-	pub use_vello: bool,
+	pub vello_preference: graph_craft::wasm_application_io::VelloPreference,
 	pub brush_tool: bool,
 	pub graph_wire_style: GraphWireStyle,
 	pub viewport_zoom_wheel_rate: f64,
 	pub ui_scale: f64,
 	pub disable_ui_acceleration: bool,
+	pub max_render_region_size: u32,
 }
 
 impl PreferencesMessageHandler {
@@ -35,13 +37,18 @@ impl PreferencesMessageHandler {
 
 	pub fn editor_preferences(&self) -> EditorPreferences {
 		EditorPreferences {
-			use_vello: self.use_vello && self.supports_wgpu(),
+			vello_preference: self.vello_preference,
+			max_render_region_size: self.max_render_region_size,
 		}
 	}
 
 	pub fn supports_wgpu(&self) -> bool {
 		graph_craft::wasm_application_io::wgpu_available().unwrap_or_default()
 	}
+
+	pub fn use_vello(&self) -> bool {
+		self.editor_preferences().use_vello()
+	}
 }
 
 impl Default for PreferencesMessageHandler {
@@ -49,12 +56,13 @@ impl Default for PreferencesMessageHandler {
 		Self {
 			selection_mode: SelectionMode::Touched,
 			zoom_with_scroll: matches!(MappingVariant::default(), MappingVariant::ZoomWithScroll),
-			use_vello: EditorPreferences::default().use_vello,
+			vello_preference: EditorPreferences::default().vello_preference,
 			brush_tool: false,
 			graph_wire_style: GraphWireStyle::default(),
 			viewport_zoom_wheel_rate: VIEWPORT_ZOOM_WHEEL_RATE,
 			ui_scale: UI_SCALE_DEFAULT,
 			disable_ui_acceleration: false,
+			max_render_region_size: EditorPreferences::default().max_render_region_size,
 		}
 	}
 }
@@ -82,10 +90,11 @@ impl MessageHandler<PreferencesMessage, PreferencesMessageContext<'_>> for Prefe
 			}
 
 			// Per-preference messages
-			PreferencesMessage::UseVello { use_vello } => {
-				self.use_vello = use_vello;
+			PreferencesMessage::VelloPreference { preference } => {
+				self.vello_preference = preference;
 				responses.add(PortfolioMessage::UpdateVelloPreference);
 				responses.add(PortfolioMessage::EditorPreferences);
+				responses.add(PreferencesDialogMessage::Update);
 			}
 			PreferencesMessage::BrushTool { enabled } => {
 				self.brush_tool = enabled;
@@ -120,6 +129,11 @@ impl MessageHandler<PreferencesMessage, PreferencesMessageContext<'_>> for Prefe
 			PreferencesMessage::DisableUIAcceleration { disable_ui_acceleration } => {
 				self.disable_ui_acceleration = disable_ui_acceleration;
 			}
+			PreferencesMessage::MaxRenderRegionSize { size } => {
+				self.max_render_region_size = size;
+				responses.add(PortfolioMessage::UpdateVelloPreference);
+				responses.add(PortfolioMessage::EditorPreferences);
+			}
 		}
 
 		responses.add(FrontendMessage::TriggerSavePreferences { preferences: self.clone() });