Fix intersection bug in DrawTarget.copy_surface#213
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galenelias wants to merge 1 commit intojrmuizel:masterfrom
Open
Fix intersection bug in DrawTarget.copy_surface#213galenelias wants to merge 1 commit intojrmuizel:masterfrom
galenelias wants to merge 1 commit intojrmuizel:masterfrom
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If the src_rect passed to copy_surface is outside the src bounds then
the copy_surface code doesn't offset correctly into 'dst'.
Rough illustration:
dest.copy_surface(&src, intrect(-1, -1, 1, 1), IntPoint::new(0, 0));
src_rect dst expected
+---+ +---+
| +-|--+ | |
| |x| | | x|
+---+ | +---+
| |
+----+ dst actual
src +---+
|x |
| |
+---+
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If the src_rect passed to copy_surface is outside the src bounds then the copy_surface code doesn't offset correctly into 'dst'.
Rough illustration: