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113 lines
3.3 KiB
Lua
113 lines
3.3 KiB
Lua
-- Copyright (C) 2020 Igara Studio S.A.
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--
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-- This file is released under the terms of the MIT license.
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-- Read LICENSE.txt for more information.
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dofile('./test_utils.lua')
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local pencil = "pencil"
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function test_inks(colorMode)
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-- Test ink over a transparent sprite
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local s = Sprite(3, 3, colorMode)
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local p, a, b, c, d
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if colorMode == ColorMode.GRAY then
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local function gray(g)
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return app.pixelColor.graya(g, 255)
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end
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p = s.palettes[1]
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a, b, c, d = gray(0), gray(64), gray(128), gray(255)
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else
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p = Palette()
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p:resize(4)
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p:setColor(0, Color(0, 0, 0))
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p:setColor(1, Color(64, 64, 64))
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p:setColor(2, Color(128, 128, 128))
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p:setColor(3, Color(255, 255, 255))
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s:setPalette(p)
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a, b, c, d = 0, 1, 2, 3
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if colorMode == ColorMode.RGB then
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a = p:getColor(a).rgbaPixel
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b = p:getColor(b).rgbaPixel
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c = p:getColor(c).rgbaPixel
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d = p:getColor(d).rgbaPixel
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end
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end
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-- With simple ink opacity doesn't have affect (always the color)
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local opacities = { 0, 128, 255 }
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for i = 1,#opacities do
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expect_img(app.activeImage,
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{ 0, 0, 0,
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0, 0, 0,
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0, 0, 0 })
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app.useTool{ tool=pencil, color=d, points={ Point(0, 0), Point(2, 2) },
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ink=Ink.SIMPLE, opacity=opacities[i] }
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expect_img(app.activeImage,
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{ d, 0, 0,
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0, d, 0,
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0, 0, d })
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if i < #opacities then app.undo() end
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end
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-- Check that painting with transparent index (color) on a
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-- transparent layer (using any value of opacity) with alpha
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-- compositing doesn't modify pixels
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for i = 1,#opacities do
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app.useTool{ tool=pencil, color=0, points={ Point(1, 1) },
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ink=Ink.ALPHA_COMPOSITING, opacity=opacities[i] }
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expect_img(app.activeImage,
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{ d, 0, 0,
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0, d, 0,
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0, 0, d })
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end
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-- Convert to background layer
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app.command.BackgroundFromLayer()
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app.useTool{ tool=pencil, color=d, points={ Point(0, 1), Point(2, 1) },
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ink=Ink.ALPHA_COMPOSITING, opacity=64 }
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expect_img(app.activeImage,
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{ d, a, a,
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b, d, b,
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a, a, d })
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app.useTool{ tool=pencil, color=d, points={ Point(0, 1) },
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ink=Ink.ALPHA_COMPOSITING, opacity=86 }
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expect_img(app.activeImage,
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{ d, a, a,
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c, d, b,
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a, a, d })
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end
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function test_alpha_compositing_on_indexed_with_full_opacity_and_repeated_colors_in_palette()
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local s = Sprite(1, 1, ColorMode.INDEXED)
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local p = Palette()
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p:resize(5)
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p:setColor(0, Color(0, 0, 0))
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p:setColor(1, Color(64, 64, 64))
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p:setColor(2, Color(128, 128, 128))
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p:setColor(3, Color(128, 128, 128))
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p:setColor(4, Color(255, 255, 255))
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s:setPalette(p)
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app.command.BackgroundFromLayer()
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local inks = { Ink.SIMPLE, Ink.ALPHA_COMPOSITING }
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for i = 1,2 do
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for c = 0,4 do
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expect_img(app.activeImage, { 0 })
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app.useTool{ tool="pencil", color=c, points={ Point(0, 0) },
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ink=inks[i], opacity=255 }
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expect_img(app.activeImage, { c })
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app.undo()
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end
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end
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end
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test_inks(ColorMode.RGB)
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test_inks(ColorMode.GRAY)
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test_inks(ColorMode.INDEXED)
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test_alpha_compositing_on_indexed_with_full_opacity_and_repeated_colors_in_palette()
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