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core: Made palette_map not sync if copying outside of dirty region

This commit is contained in:
Nathan Adams 2023-03-24 21:41:31 +01:00
parent b1b3eef283
commit 44c35a5b50
1 changed files with 7 additions and 8 deletions
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15
core/src/bitmap/bitmap_data_operations.rs
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@ -653,17 +653,16 @@ pub fn palette_map<'gc>(
let (src_min_x, src_min_y, src_width, src_height) = src_rect;
let (dest_min_x, dest_min_y) = dest_point;
let target = target.sync();
let source_bitmap = source_bitmap.sync();
// Unlike `copy_channel` and `copy_pixels`, this function seems to
// operate "in-place" if the source bitmap is the same object as the destination.
let source_bitmap = if GcCell::ptr_eq(source_bitmap, target) {
let mut source_region =
PixelRegion::for_region_i32(src_min_x, src_min_y, src_width, src_height);
source_region.clamp(source_bitmap.width(), source_bitmap.height());
let source = if source_bitmap.ptr_eq(target) {
None
} else {
Some(source_bitmap.read())
Some(source_bitmap.read_area(source_region))
};
let target = target.sync();
let mut write = target.write(context.gc_context);
for src_y in src_min_y..(src_min_y + src_height) {
@ -675,7 +674,7 @@ pub fn palette_map<'gc>(
continue;
}
let source_color = if let Some(source) = &source_bitmap {
let source_color = if let Some(source) = &source {
if !source.is_point_in_bounds(src_x, src_y) {
continue;
}