Auto merge of #24422 - pylbrecht:raqote, r=jdm

Use raqote for 2D canvas rendering

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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #23431

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Cargo.lock

@@ -3886,8 +3886,8 @@ dependencies = [
 
 [[package]]
 name = "raqote"
-version = "0.6.5-alpha.0"
+version = "0.7.4-alpha.0"
-source = "git+https://github.com/jrmuizel/raqote#c9d6d9c65ffac5fe91e2699f9854b3fbaa3c85c2"
+source = "git+https://github.com/jrmuizel/raqote#2a801bca7253e053767ef5ea11b0ee77c52617c9"
 dependencies = [
  "euclid",
  "font-kit",
@@ -5090,9 +5090,9 @@ checksum = "c666f0fed8e1e20e057af770af9077d72f3d5a33157b8537c1475dd8ffd6d32b"
 
 [[package]]
 name = "sw-composite"
-version = "0.5.10"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5eba1755094da86216f071f7a28b0453345c3e6e558ea2fd7821c55eef8fb9b2"
+checksum = "71bd71d7772bdbb7e5fbe37f767c5b2506bd23e72c12186a63f78c0980f64e9b"
 
 [[package]]
 name = "swapper"

components/canvas/raqote_backend.rs

@@ -180,9 +180,11 @@ impl DrawOptions {
 impl Path {
     pub fn transformed_copy_to_builder(
         &self,
-        _transform: &Transform2D<f32>,
+        transform: &Transform2D<f32>,
     ) -> Box<dyn GenericPathBuilder> {
-        unimplemented!()
+        Box::new(PathBuilder(Some(raqote::PathBuilder::from(
+            self.as_raqote().clone().transform(transform),
+        ))))
     }
 
     pub fn contains_point(&self, x: f64, y: f64, _path_transform: &Transform2D<f32>) -> bool {
@@ -306,7 +308,7 @@ impl GenericDrawTarget for raqote::DrawTarget {
         _sigma: f32,
         _operator: CompositionOp,
     ) {
-        unimplemented!();
+        warn!("no support for drawing shadows");
     }
     fn fill(&mut self, path: &Path, pattern: Pattern, draw_options: &DrawOptions) {
         self.fill(
@@ -355,7 +357,7 @@ impl GenericDrawTarget for raqote::DrawTarget {
         self.set_transform(matrix);
     }
     fn snapshot(&self) -> SourceSurface {
-        unimplemented!();
+        SourceSurface::Raqote(self.snapshot_data_owned())
     }
     fn stroke(
         &mut self,
@@ -633,11 +635,12 @@ pub trait ToRaqoteGradientStop {
 
 impl ToRaqoteGradientStop for CanvasGradientStop {
     fn to_raqote(&self) -> raqote::GradientStop {
-        let color: u32 = ((self.color.alpha as u32) << 8 * 3 |
+        let color = raqote::Color::new(
-            (self.color.red as u32) << 8 * 2 |
+            self.color.alpha,
-            (self.color.green as u32) << 8 * 1 |
+            self.color.red,
-            (self.color.blue as u32) << 8 * 0)
+            self.color.green,
-            .into();
+            self.color.blue,
+        );
         let position = self.offset as f32;
         raqote::GradientStop { position, color }
     }