Add a tiny_skia rendering backend

Cargo.toml

@@ -13,7 +13,9 @@ clipboard = "0.5.0"
 smallvec = "1.10.0"
 educe = "0.4.20"
 taffy = "0.3.13"
-rfd = { version = "0.11.4", default-features = false, features = ["xdg-portal"] }
+rfd = { version = "0.11.4", default-features = false, features = [
+    "xdg-portal",
+] }
 raw-window-handle = "0.5.1"
 kurbo = { version = "0.9.5", features = ["serde"] }
 unicode-segmentation = "1.10.0"
@@ -24,6 +26,7 @@ im = "15.1.0"
 parking_lot = { version = "0.12.1" }
 floem_renderer = { path = "renderer" }
 floem_vger = { path = "vger" }
+floem_tiny_skia = { path = "tiny_skia" }
 floem_reactive = { path = "reactive" }
 winit = { git = "https://github.com/lapce/winit", rev = "25edc72fa4869d0fa83c61c26f0e38d7d7be9b0d" }
 # winit = { path = "../winit" }
@@ -33,7 +36,7 @@ image = { version = "0.24", features = ["jpeg", "png"] }
 serde = ["winit/serde"]
 
 [workspace]
-members = ["renderer", "vger", "reactive", "examples/*"]
+members = ["renderer", "vger", "tiny_skia", "reactive", "examples/*"]
 
 [workspace.package]
 license = "MIT"

src/renderer.rs

@@ -49,12 +49,15 @@
 //!
 use crate::cosmic_text::TextLayout;
 use floem_renderer::Img;
+use floem_tiny_skia::TinySkiaRenderer;
 use floem_vger::VgerRenderer;
 use kurbo::{Affine, Rect, Shape, Size};
 use peniko::BrushRef;
 
+#[allow(clippy::large_enum_variant)]
 pub enum Renderer {
     Vger(VgerRenderer),
+    TinySkia(TinySkiaRenderer),
 }
 
 impl Renderer {
@@ -63,19 +66,34 @@ impl Renderer {
         W: raw_window_handle::HasRawDisplayHandle + raw_window_handle::HasRawWindowHandle,
     {
         let size = Size::new(size.width.max(1.0), size.height.max(1.0));
-        Self::Vger(VgerRenderer::new(window, size.width as u32, size.height as u32, scale).unwrap())
+
+        let vger_err = match VgerRenderer::new(window, size.width as u32, size.height as u32, scale)
+        {
+            Ok(vger) => return Self::Vger(vger),
+            Err(vger_err) => vger_err,
+        };
+
+        let tiny_skia_err =
+            match TinySkiaRenderer::new(window, size.width as u32, size.height as u32, scale) {
+                Ok(tiny_skia) => return Self::TinySkia(tiny_skia),
+                Err(vger_err) => vger_err,
+            };
+
+        panic!("Failed to create VgerRenderer: {vger_err}\nFailed to create TinySkiaRenderer: {tiny_skia_err}")
     }
 
     pub fn resize(&mut self, scale: f64, size: Size) {
         let size = Size::new(size.width.max(1.0), size.height.max(1.0));
         match self {
             Renderer::Vger(r) => r.resize(size.width as u32, size.height as u32, scale),
+            Renderer::TinySkia(r) => r.resize(size.width as u32, size.height as u32, scale),
         }
     }
 
     pub fn set_scale(&mut self, scale: f64) {
         match self {
             Renderer::Vger(r) => r.set_scale(scale),
+            Renderer::TinySkia(r) => r.set_scale(scale),
         }
     }
 }
@@ -86,6 +104,9 @@ impl floem_renderer::Renderer for Renderer {
             Renderer::Vger(r) => {
                 r.begin();
             }
+            Renderer::TinySkia(r) => {
+                r.begin();
+            }
         }
     }
 
@@ -94,6 +115,9 @@ impl floem_renderer::Renderer for Renderer {
             Renderer::Vger(v) => {
                 v.clip(shape);
             }
+            Renderer::TinySkia(v) => {
+                v.clip(shape);
+            }
         }
     }
 
@@ -102,6 +126,9 @@ impl floem_renderer::Renderer for Renderer {
             Renderer::Vger(v) => {
                 v.clear_clip();
             }
+            Renderer::TinySkia(v) => {
+                v.clear_clip();
+            }
         }
     }
 
@@ -110,6 +137,9 @@ impl floem_renderer::Renderer for Renderer {
             Renderer::Vger(v) => {
                 v.stroke(shape, brush, width);
             }
+            Renderer::TinySkia(v) => {
+                v.stroke(shape, brush, width);
+            }
         }
     }
 
@@ -123,6 +153,9 @@ impl floem_renderer::Renderer for Renderer {
             Renderer::Vger(v) => {
                 v.fill(path, brush, blur_radius);
             }
+            Renderer::TinySkia(v) => {
+                v.fill(path, brush, blur_radius);
+            }
         }
     }
 
@@ -131,6 +164,9 @@ impl floem_renderer::Renderer for Renderer {
             Renderer::Vger(v) => {
                 v.draw_text(layout, pos);
             }
+            Renderer::TinySkia(v) => {
+                v.draw_text(layout, pos);
+            }
         }
     }
 
@@ -139,6 +175,9 @@ impl floem_renderer::Renderer for Renderer {
             Renderer::Vger(v) => {
                 v.draw_img(img, width, height, rect);
             }
+            Renderer::TinySkia(v) => {
+                v.draw_img(img, width, height, rect);
+            }
         }
     }
 
@@ -152,6 +191,9 @@ impl floem_renderer::Renderer for Renderer {
             Renderer::Vger(v) => {
                 v.draw_svg(svg, rect, brush);
             }
+            Renderer::TinySkia(v) => {
+                v.draw_svg(svg, rect, brush);
+            }
         }
     }
 
@@ -160,6 +202,9 @@ impl floem_renderer::Renderer for Renderer {
             Renderer::Vger(v) => {
                 v.transform(transform);
             }
+            Renderer::TinySkia(v) => {
+                v.transform(transform);
+            }
         }
     }
 
@@ -168,6 +213,9 @@ impl floem_renderer::Renderer for Renderer {
             Renderer::Vger(v) => {
                 v.set_z_index(z_index);
             }
+            Renderer::TinySkia(v) => {
+                v.set_z_index(z_index);
+            }
         }
     }
 
@@ -176,6 +224,9 @@ impl floem_renderer::Renderer for Renderer {
             Renderer::Vger(r) => {
                 r.finish();
             }
+            Renderer::TinySkia(r) => {
+                r.finish();
+            }
         }
     }
 }

tiny_skia/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "floem_tiny_skia"
+version = "0.1.0"
+edition = "2021"
+license.workspace = true
+
+[dependencies]
+resvg = "0.33.0"
+raw-window-handle = "0.5.1"
+futures = "0.3.26"
+anyhow = "1.0.69"
+peniko = { git = "https://github.com/linebender/peniko", rev = "cafdac9a211a0fb2fec5656bd663d1ac770bcc81" }
+swash = "0.1.8"
+floem_renderer = { path = "../renderer" }
+softbuffer = "0.3.1"
+bytemuck = "1.12"
+image = { version = "0.24", features = ["jpeg", "png"] }