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Greatly optimize selection content deletion

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New speeds with this commit (approximately)
64x64: 0-1ms
1024x1024: 27ms
2048x2048: 73ms
4096x4096: 261ms

Old speeds before this commit (approximately)
64x64: 42ms
1024x1024: 5204ms
2048x2048: 20988ms
4096x4096: 83973ms
This commit is contained in:
Emmanouil Papadeas 2022-08-08 19:07:17 +03:00
parent 8a6e393d69
commit a9e624e319
1 changed files with 10 additions and 6 deletions
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16
src/UI/Canvas/Selection.gd
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@ -782,12 +782,16 @@ func delete(selected_cels := true) -> void:
else:
images = [project.frames[project.current_frame].cels[project.current_layer].image]
for x in big_bounding_rectangle.size.x:
for y in big_bounding_rectangle.size.y:
var pos := Vector2(x, y) + big_bounding_rectangle.position
if project.can_pixel_get_drawn(pos):
for image in images:
image.set_pixelv(pos, Color(0))
var blank := Image.new()
blank.create(project.size.x, project.size.y, false, Image.FORMAT_RGBA8)
var selection_map_copy := SelectionMap.new()
selection_map_copy.copy_from(project.selection_map)
# In case the selection map is bigger than the canvas
selection_map_copy.crop(project.size.x, project.size.y)
for image in images:
image.blit_rect_mask(
blank, selection_map_copy, big_bounding_rectangle, big_bounding_rectangle.position
)
commit_undo("Draw", undo_data_tmp)