Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-07-22 23:03:42 +01:00
Code Issues Projects Releases Packages Wiki Activity

Handle some transparent black cases in ctx.getImageData

Browse source
This commit is contained in:
Anthony Ramine 2018-10-07 02:52:06 +02:00
parent 241dba064d
commit e62dbabb46
6 changed files with 72 additions and 49 deletions
Download patch file Download diff file Expand all files Collapse all files

17
components/canvas/canvas_data.rs
View file

@ -526,22 +526,7 @@ impl<'a> CanvasData<'a> {
}
let data_surface = self.drawtarget.snapshot().get_data_surface();
let src_data = unsafe { data_surface.data() };
let stride = data_surface.stride();
//start offset of the copyable rectangle
let mut src = (src_read_rect.origin.y * stride + src_read_rect.origin.x * 4) as usize;
let mut image_data = Vec::with_capacity(
(src_read_rect.size.width * src_read_rect.size.height * 4) as usize,
);
//copy the data to the destination vector
for _ in 0..src_read_rect.size.height {
let row = &src_data[src .. src + (4 * src_read_rect.size.width) as usize];
image_data.extend_from_slice(row);
src += stride as usize;
}
image_data
pixels::get_rect(unsafe { data_surface.data() }, canvas_size.to_u32(), read_rect.to_u32()).into_owned()
}
}