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Use ByteBuf for the canvas messages

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The type Vec<u8> is super unefficient to work with in Serde if all you want
to represent is a simple blob.
This commit is contained in:
Anthony Ramine 2018-03-23 18:41:32 +01:00
parent 3ce3f39383
commit ce81420bef
19 changed files with 170 additions and 62 deletions
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28
components/script/dom/canvasrenderingcontext2d.rs
View file

@ -453,13 +453,13 @@ impl CanvasRenderingContext2D {
}
let smoothing_enabled = self.state.borrow().image_smoothing_enabled;
self.ipc_renderer
.send(CanvasMsg::Canvas2d(Canvas2dMsg::DrawImage(image_data,
image_size,
dest_rect,
source_rect,
smoothing_enabled)))
.unwrap();
self.ipc_renderer.send(CanvasMsg::Canvas2d(Canvas2dMsg::DrawImage(
image_data.into(),
image_size,
dest_rect,
source_rect,
smoothing_enabled,
))).unwrap();
self.mark_as_dirty();
Ok(())
}
@ -1127,7 +1127,7 @@ impl CanvasRenderingContext2DMethods for CanvasRenderingContext2D {
let sh = cmp::max(1, sh.to_u32().unwrap());
let sw = cmp::max(1, sw.to_u32().unwrap());
let (sender, receiver) = ipc::channel::<Vec<u8>>(self.global().time_profiler_chan().clone()).unwrap();
let (sender, receiver) = ipc::channel(self.global().time_profiler_chan().clone()).unwrap();
let dest_rect = Rect::new(Point2D::new(sx.to_i32().unwrap(), sy.to_i32().unwrap()),
Size2D::new(sw as i32, sh as i32));
let canvas_size = self.canvas.as_ref().map(|c| c.get_size()).unwrap_or(Size2D::zero());
@ -1135,7 +1135,7 @@ impl CanvasRenderingContext2DMethods for CanvasRenderingContext2D {
self.ipc_renderer
.send(CanvasMsg::Canvas2d(Canvas2dMsg::GetImageData(dest_rect, canvas_size, sender)))
.unwrap();
let mut data = receiver.recv().unwrap();
let mut data = Vec::from(receiver.recv().unwrap());
// Un-premultiply alpha
for chunk in data.chunks_mut(4) {
@ -1174,10 +1174,12 @@ impl CanvasRenderingContext2DMethods for CanvasRenderingContext2D {
let dirty_rect = Rect::new(Point2D::new(*dirty_x, *dirty_y),
Size2D::new(*dirty_width, *dirty_height));
let msg = CanvasMsg::Canvas2d(Canvas2dMsg::PutImageData(data,
offset,
image_data_size,
dirty_rect));
let msg = CanvasMsg::Canvas2d(Canvas2dMsg::PutImageData(
data.into(),
offset,
image_data_size,
dirty_rect,
));
self.ipc_renderer.send(msg).unwrap();
self.mark_as_dirty();
}