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Tests for issue aseprite/aseprite#3207

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Before the fix the conversion from RGB to INDEXED color mode, in
transparent layers, always picked index 0 as transparent color, even
if the mask color was present in the palette.
This commit is contained in:
Gaspar Capello 2022-07-06 09:02:48 -03:00 committed by David Capello
parent 1d183183d5
commit 1f5d89a427
1 changed files with 55 additions and 1 deletions
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56
scripts/color_quantization.lua
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@ -1,4 +1,4 @@
-- Copyright (C) 2019-2021 Igara Studio S.A.
-- Copyright (C) 2019-2022 Igara Studio S.A.
--
-- This file is released under the terms of the MIT license.
-- Read LICENSE.txt for more information.
@ -145,3 +145,57 @@ do
2, 0 })
end
----------------------------------------------------------------------
-- Tests for issue aseprite/aseprite#3207
-- Conversion RGB to INDEXED color mode, in transparent layers, always
-- picks index 0 as transparent color, even if the mask color is present
-- in the palette.
do
local s = Sprite(2, 3, ColorMode.RGB)
local p = Palette(4)
p:setColor(0, Color(0, 0, 0))
p:setColor(1, Color(255, 0, 0))
p:setColor(2, Color(0, 0, 0, 0))
p:setColor(3, Color(0, 255, 0))
s:setPalette(p)
local bg = s.cels[1].image
array_to_pixels({ rgba(0, 0, 0),rgba(255, 0, 0),
rgba(255, 0, 0), rgba(0, 0, 0, 0),
rgba(0, 0, 0, 0), rgba(0, 0, 0, 0), }, bg)
app.command.ChangePixelFormat{ format="indexed", rgbmap="rgb5a3" }
-- Using the 5-bit precision of RGB5A3 will match everything with
-- the first palette entry.
bg = s.cels[1].image
expect_img(bg, { 0, 1,
1, 2,
2, 2 })
app.undo()
app.command.ChangePixelFormat{ format="indexed", rgbmap="octree" }
bg = s.cels[1].image
expect_img(bg, { 0, 1,
1, 2,
2, 2 })
app.undo()
p:setColor(2, Color(0, 0, 255))
s:setPalette(p)
bg = s.cels[1].image
app.command.ChangePixelFormat{ format="indexed", rgbmap="rgb5a3" }
bg = s.cels[1].image
expect_img(bg, { 2, 1,
1, 0,
0, 0 })
app.undo()
app.command.ChangePixelFormat{ format="indexed", rgbmap="octree" }
bg = s.cels[1].image
expect_img(bg, { 2, 1,
1, 0,
0, 0 })
end