🐛 Fix big blur rendering for wasm render

render-wasm/src/render.rs

@@ -1,4 +1,5 @@
 mod blend;
+mod blurs;
 mod debug;
 mod fills;
 mod fonts;
@@ -21,7 +22,7 @@ use options::RenderOptions;
 use surfaces::{SurfaceId, Surfaces};
 
 use crate::performance;
-use crate::shapes::{Corners, Fill, Shape, SolidColor, StructureEntry, Type};
+use crate::shapes::{BlurType, Corners, Fill, Shape, SolidColor, StructureEntry, Type};
 use crate::state::ShapesPool;
 use crate::tiles::{self, PendingTiles, TileRect};
 use crate::uuid::Uuid;
@@ -29,6 +30,7 @@ use crate::view::Viewbox;
 use crate::wapi;
 
 pub use blend::BlendMode;
+pub use blurs::*;
 pub use fonts::*;
 pub use images::*;
 
@@ -377,10 +379,19 @@ impl RenderState {
                 Some(&skia::Paint::default()),
             );
         }
+
+        // Draw blurs after everything else
+        self.surfaces.draw_into(
+            SurfaceId::Blurs,
+            SurfaceId::Current,
+            Some(&skia::Paint::default()),
+        );
+
         let surface_ids = SurfaceId::Strokes as u32
             | SurfaceId::Fills as u32
             | SurfaceId::DropShadows as u32
-            | SurfaceId::InnerShadows as u32;
+            | SurfaceId::InnerShadows as u32
+            | SurfaceId::Blurs as u32;
 
         self.surfaces.apply_mut(surface_ids, |s| {
             s.canvas().clear(skia::Color::TRANSPARENT);
@@ -410,7 +421,8 @@ impl RenderState {
         let surface_ids = SurfaceId::Strokes as u32
             | SurfaceId::Fills as u32
             | SurfaceId::DropShadows as u32
-            | SurfaceId::InnerShadows as u32;
+            | SurfaceId::InnerShadows as u32
+            | SurfaceId::Blurs as u32;
         self.surfaces.apply_mut(surface_ids, |s| {
             s.canvas().save();
         });
@@ -456,7 +468,8 @@ impl RenderState {
                 let surface_ids = SurfaceId::Strokes as u32
                     | SurfaceId::Fills as u32
                     | SurfaceId::DropShadows as u32
-                    | SurfaceId::InnerShadows as u32;
+                    | SurfaceId::InnerShadows as u32
+                    | SurfaceId::Blurs as u32;
                 self.surfaces.apply_mut(surface_ids, |s| {
                     s.canvas().concat(&matrix);
                 });
@@ -466,6 +479,7 @@ impl RenderState {
 
                 if !shape.has_visible_strokes() {
                     shadows::render_text_drop_shadows(self, &shape, &mut paragraphs, antialias);
+                    render_text_blurs(self, &shape, &mut paragraphs, antialias);
                 }
 
                 text::render(self, &shape, &mut paragraphs, None, None);
@@ -491,6 +505,12 @@ impl RenderState {
                         &mut stroke_paragraphs,
                         antialias,
                     );
+                    render_text_blurs(
+                        self,
+                        &shape,
+                        &mut stroke_paragraphs,
+                        antialias,
+                    );
                     strokes::render(
                         self,
                         &shape,
@@ -510,12 +530,14 @@ impl RenderState {
                 }
 
                 shadows::render_text_inner_shadows(self, &shape, &mut paragraphs, antialias);
+                render_text_blurs(self, &shape, &mut paragraphs, antialias);
             }
             _ => {
                 let surface_ids = SurfaceId::Strokes as u32
                     | SurfaceId::Fills as u32
                     | SurfaceId::DropShadows as u32
-                    | SurfaceId::InnerShadows as u32;
+                    | SurfaceId::InnerShadows as u32
+                    | SurfaceId::Blurs as u32;
                 self.surfaces.apply_mut(surface_ids, |s| {
                     s.canvas().concat(&matrix);
                 });
@@ -541,8 +563,12 @@ impl RenderState {
                     }
                 }
 
+                // Render blurs for fills
+                // render_fill_blurs(self, &shape, antialias);
+
                 for stroke in shape.visible_strokes().rev() {
                     shadows::render_stroke_drop_shadows(self, &shape, stroke, antialias);
+                    // render_stroke_blurs(self, &shape, stroke, antialias);
                     strokes::render(self, &shape, stroke, None, None, None, antialias, None);
                     shadows::render_stroke_inner_shadows(self, &shape, stroke, antialias);
                 }
@@ -736,9 +762,9 @@ impl RenderState {
                 .save_layer(&mask_rec);
         }
 
-        if let Some(image_filter) = element.image_filter(self.get_scale()) {
-            paint.set_image_filter(image_filter);
-        }
+        // if let Some(image_filter) = element.image_filter(self.get_scale()) {
+        //     paint.set_image_filter(image_filter);
+        // }
 
         let layer_rec = skia::canvas::SaveLayerRec::default().paint(&paint);
         self.surfaces

render-wasm/src/render/fills.rs

@@ -1,8 +1,8 @@
-use skia_safe::{self as skia, Paint, RRect};
+use skia_safe::{self as skia, image_filters, Paint, RRect};
 
 use super::{RenderState, SurfaceId};
 use crate::render::get_source_rect;
-use crate::shapes::{Fill, Frame, ImageFill, Rect, Shape, Type};
+use crate::shapes::{BlurType, Fill, Frame, ImageFill, Rect, Shape, Type};
 
 fn draw_image_fill(
     render_state: &mut RenderState,
@@ -84,26 +84,29 @@ fn draw_image_fill(
  * This SHOULD be the only public function in this module.
  */
 pub fn render(render_state: &mut RenderState, shape: &Shape, fill: &Fill, antialias: bool) {
-    let paint = &fill.to_paint(&shape.selrect, antialias);
+    let mut paint = fill.to_paint(&shape.selrect, antialias);
+    if let Some(image_filter) = shape.image_filter(1.) {
+        paint.set_image_filter(image_filter);
+    }
 
     match (fill, &shape.shape_type) {
         (Fill::Image(image_fill), _) => {
-            draw_image_fill(render_state, shape, image_fill, paint, antialias);
+            draw_image_fill(render_state, shape, image_fill, &paint, antialias);
         }
         (_, Type::Rect(_) | Type::Frame(_)) => {
             render_state
                 .surfaces
-                .draw_rect_to(SurfaceId::Fills, shape, paint);
+                .draw_rect_to(SurfaceId::Fills, shape, &paint);
         }
         (_, Type::Circle) => {
             render_state
                 .surfaces
-                .draw_circle_to(SurfaceId::Fills, shape, paint);
+                .draw_circle_to(SurfaceId::Fills, shape, &paint);
         }
         (_, Type::Path(_)) | (_, Type::Bool(_)) => {
             render_state
                 .surfaces
-                .draw_path_to(SurfaceId::Fills, shape, paint);
+                .draw_path_to(SurfaceId::Fills, shape, &paint);
         }
         (_, Type::Group(_)) => {
             // Groups can have fills but they propagate them to their children

render-wasm/src/render/strokes.rs

@@ -9,6 +9,19 @@ use super::{RenderState, SurfaceId};
 use crate::render::text::{self};
 use crate::render::{get_dest_rect, get_source_rect};
 
+/// Composes blur and shadow filters, returning a combined filter if both are present,
+/// or the individual filter if only one is present, or None if neither is present.
+fn compose_filters(blur: Option<&ImageFilter>, shadow: Option<&ImageFilter>) -> Option<ImageFilter> {
+    match (blur, shadow) {
+        (Some(blur_filter), Some(shadow_filter)) => {
+            ImageFilter::compose(blur_filter, shadow_filter)
+        }
+        (Some(blur_filter), None) => Some(blur_filter.clone()),
+        (None, Some(shadow_filter)) => Some(shadow_filter.clone()),
+        (None, None) => None,
+    }
+}
+
 // FIXME: See if we can simplify these arguments
 #[allow(clippy::too_many_arguments)]
 fn draw_stroke_on_rect(
@@ -20,6 +33,7 @@ fn draw_stroke_on_rect(
     svg_attrs: &HashMap<String, String>,
     scale: f32,
     shadow: Option<&ImageFilter>,
+    blur: Option<&ImageFilter>,
     antialias: bool,
 ) {
     // Draw the different kind of strokes for a rect is straightforward, we just need apply a stroke to:
@@ -29,9 +43,9 @@ fn draw_stroke_on_rect(
     let stroke_rect = stroke.outer_rect(rect);
     let mut paint = stroke.to_paint(selrect, svg_attrs, scale, antialias);
 
-    if let Some(filter) = shadow {
-        paint.set_image_filter(filter.clone());
-    }
+    // Apply both blur and shadow filters if present, composing them if necessary.
+    let filter = compose_filters(blur, shadow);
+    paint.set_image_filter(filter);
 
     match corners {
         Some(radii) => {
@@ -55,6 +69,7 @@ fn draw_stroke_on_circle(
     svg_attrs: &HashMap<String, String>,
     scale: f32,
     shadow: Option<&ImageFilter>,
+    blur: Option<&ImageFilter>,
     antialias: bool,
 ) {
     // Draw the different kind of strokes for an oval is straightforward, we just need apply a stroke to:
@@ -64,9 +79,9 @@ fn draw_stroke_on_circle(
     let stroke_rect = stroke.outer_rect(rect);
     let mut paint = stroke.to_paint(selrect, svg_attrs, scale, antialias);
 
-    if let Some(filter) = shadow {
-        paint.set_image_filter(filter.clone());
-    }
+    // Apply both blur and shadow filters if present, composing them if necessary.
+    let filter = compose_filters(blur, shadow);
+    paint.set_image_filter(filter);
 
     canvas.draw_oval(stroke_rect, &paint);
 }
@@ -75,11 +90,17 @@ fn draw_outer_stroke_path(
     canvas: &skia::Canvas,
     path: &skia::Path,
     paint: &skia::Paint,
+    blur: Option<&ImageFilter>,
     antialias: bool,
 ) {
     let mut outer_paint = skia::Paint::default();
     outer_paint.set_blend_mode(skia::BlendMode::SrcOver);
     outer_paint.set_anti_alias(antialias);
+
+    if let Some(filter) = blur {
+        outer_paint.set_image_filter(filter.clone());
+    }
+
     let layer_rec = skia::canvas::SaveLayerRec::default().paint(&outer_paint);
     canvas.save_layer(&layer_rec);
     canvas.draw_path(path, paint);
@@ -87,6 +108,7 @@ fn draw_outer_stroke_path(
     let mut clear_paint = skia::Paint::default();
     clear_paint.set_blend_mode(skia::BlendMode::Clear);
     clear_paint.set_anti_alias(antialias);
+
     canvas.draw_path(path, &clear_paint);
 
     canvas.restore();
@@ -97,9 +119,17 @@ fn draw_inner_stroke_path(
     canvas: &skia::Canvas,
     path: &skia::Path,
     paint: &skia::Paint,
+    blur: Option<&ImageFilter>,
     antialias: bool,
 ) {
-    canvas.save();
+    let mut inner_paint = skia::Paint::default();
+    inner_paint.set_anti_alias(antialias);
+    if let Some(filter) = blur {
+        inner_paint.set_image_filter(filter.clone());
+    }
+
+    let layer_rec = skia::canvas::SaveLayerRec::default().paint(&inner_paint);
+    canvas.save_layer(&layer_rec);
     canvas.clip_path(path, skia::ClipOp::Intersect, antialias);
     canvas.draw_path(path, paint);
     canvas.restore();
@@ -117,6 +147,7 @@ pub fn draw_stroke_on_path(
     svg_attrs: &HashMap<String, String>,
     scale: f32,
     shadow: Option<&ImageFilter>,
+    blur: Option<&ImageFilter>,
     antialias: bool,
 ) {
     let mut skia_path = path.to_skia_path();
@@ -127,19 +158,18 @@ pub fn draw_stroke_on_path(
     let mut paint: skia_safe::Handle<_> =
         stroke.to_stroked_paint(is_open, selrect, svg_attrs, scale, antialias);
 
-    if let Some(filter) = shadow {
-        paint.set_image_filter(filter.clone());
-    }
+    let filter = compose_filters(blur, shadow);
+    paint.set_image_filter(filter);
 
     match stroke.render_kind(is_open) {
         StrokeKind::Inner => {
-            draw_inner_stroke_path(canvas, &skia_path, &paint, antialias);
+            draw_inner_stroke_path(canvas, &skia_path, &paint, blur, antialias);
         }
         StrokeKind::Center => {
             canvas.draw_path(&skia_path, &paint);
         }
         StrokeKind::Outer => {
-            draw_outer_stroke_path(canvas, &skia_path, &paint, antialias);
+            draw_outer_stroke_path(canvas, &skia_path, &paint, blur, antialias);
         }
     }
 
@@ -388,6 +418,7 @@ fn draw_image_stroke_in_container(
                 svg_attrs,
                 scale,
                 None,
+                None,
                 antialias,
             );
         }
@@ -399,6 +430,7 @@ fn draw_image_stroke_in_container(
             svg_attrs,
             scale,
             None,
+            None,
             antialias,
         ),
 
@@ -517,12 +549,14 @@ pub fn render(
                     svg_attrs,
                     scale,
                     shadow,
+                    shape.image_filter(1.).as_ref(),
                     antialias,
                 );
             }
             Type::Circle => draw_stroke_on_circle(
-                canvas, stroke, &selrect, &selrect, svg_attrs, scale, shadow, antialias,
+                canvas, stroke, &selrect, &selrect, svg_attrs, scale, shadow, shape.image_filter(1.).as_ref(), antialias,
             ),
+            //TODO: Add blur and shadow to text
             Type::Text(_) => {
                 text::render(
                     render_state,
@@ -543,6 +577,7 @@ pub fn render(
                         svg_attrs,
                         scale,
                         shadow,
+                        shape.image_filter(1.).as_ref(),
                         antialias,
                     );
                 }
@@ -572,6 +607,7 @@ pub fn render_text_paths(
     let mut paint: skia_safe::Handle<_> =
         stroke.to_text_stroked_paint(false, selrect, svg_attrs, scale, antialias);
 
+    //TODO: Add blur and shadow to text
     if let Some(filter) = shadow {
         paint.set_image_filter(filter.clone());
     }
@@ -579,7 +615,8 @@ pub fn render_text_paths(
     match stroke.render_kind(false) {
         StrokeKind::Inner => {
             for (path, _) in paths {
-                draw_inner_stroke_path(canvas, path, &paint, antialias);
+                //TODO: Add blur and shadow to text
+                draw_inner_stroke_path(canvas, path, &paint, None, antialias);
             }
         }
         StrokeKind::Center => {
@@ -589,7 +626,8 @@ pub fn render_text_paths(
         }
         StrokeKind::Outer => {
             for (path, _) in paths {
-                draw_outer_stroke_path(canvas, path, &paint, antialias);
+                //TODO: Add blur and shadow to text
+                draw_outer_stroke_path(canvas, path, &paint, None, antialias);
             }
         }
     }

render-wasm/src/render/surfaces.rs

@@ -24,8 +24,9 @@ pub enum SurfaceId {
     Strokes = 0b0_0001_0000,
     DropShadows = 0b0_0010_0000,
     InnerShadows = 0b0_0100_0000,
-    UI = 0b0_1000_0000,
-    Debug = 0b1_0000_0000,
+    Blurs = 0b0_1000_0000,
+    UI = 0b1_0000_0000,
+    Debug = 0b10_0000_0000,
 }
 
 pub struct Surfaces {
@@ -42,6 +43,8 @@ pub struct Surfaces {
     drop_shadows: skia::Surface,
     // used for rendering over shadows.
     inner_shadows: skia::Surface,
+    // used for rendering blurs
+    blurs: skia::Surface,
     // used for displaying auxiliary workspace elements
     ui: skia::Surface,
     // for drawing debug info.
@@ -73,6 +76,8 @@ impl Surfaces {
             gpu_state.create_surface_with_isize("drop_shadows".to_string(), extra_tile_dims);
         let inner_shadows =
             gpu_state.create_surface_with_isize("inner_shadows".to_string(), extra_tile_dims);
+        let blurs =
+            gpu_state.create_surface_with_isize("blurs".to_string(), extra_tile_dims);
         let shape_fills =
             gpu_state.create_surface_with_isize("shape_fills".to_string(), extra_tile_dims);
         let shape_strokes =
@@ -88,6 +93,7 @@ impl Surfaces {
             current,
             drop_shadows,
             inner_shadows,
+            blurs,
             shape_fills,
             shape_strokes,
             ui,
@@ -180,6 +186,7 @@ impl Surfaces {
             -render_area.left() + self.margins.width as f32 / scale,
             -render_area.top() + self.margins.height as f32 / scale,
         );
+        
         self.apply_mut(
             SurfaceId::Fills as u32
                 | SurfaceId::Strokes as u32
@@ -201,6 +208,7 @@ impl Surfaces {
             SurfaceId::Current => &mut self.current,
             SurfaceId::DropShadows => &mut self.drop_shadows,
             SurfaceId::InnerShadows => &mut self.inner_shadows,
+            SurfaceId::Blurs => &mut self.blurs,
             SurfaceId::Fills => &mut self.shape_fills,
             SurfaceId::Strokes => &mut self.shape_strokes,
             SurfaceId::Debug => &mut self.debug,