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286 lines
8.8 KiB
Lua
286 lines
8.8 KiB
Lua
-- Copyright (C) 2020-2022 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 colorModes = { ColorMode.RGB,
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ColorMode.GRAY,
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ColorMode.INDEXED }
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local pencil = "pencil"
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local pc = app.pixelColor
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local function gray(g)
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return pc.graya(g, 255)
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end
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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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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.bgColor = Color{ index=0 }
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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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----------------------------------------------------------------------
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-- Inks with custom brushes
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function test_custom_brush_inks(brushColorMode)
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-- Colors in the brush image (ba, bb, bc, bd)
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local ba, bb, bc, bd
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if brushColorMode == ColorMode.RGB then
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ba = Color(0, 0, 0)
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bb = Color(64, 64, 64)
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bc = Color(128, 128, 128)
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bd = Color(255, 255, 255)
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elseif brushColorMode == ColorMode.GRAY then
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ba, bb, bc, bd = gray(0), gray(64), gray(128), gray(255)
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else
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ba, bb, bc, bd = 0, 1, 2, 3
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end
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local brushImage = Image(2, 2, brushColorMode)
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array_to_pixels({ 0, bd,
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bc, 0 }, brushImage)
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local brush = Brush(brushImage)
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-- da, db, dc, dd are the final result after painting the custom
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-- brush in the sprite
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local ra, rb, rc, rd
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if s.colorMode ~= ColorMode.INDEXED and
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brushColorMode == ColorMode.INDEXED then
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-- For indexed images we take the index of the brush and use the
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-- sprite palette, we are not sure if this in the future might
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-- change, e.g. having the original palette that was used to
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-- create the brush integrated to the brush itself, in that case
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-- we should convert the brush index using the same brush
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-- palette (instead of the sprite palette).
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--
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-- TODO check BrushInkProcessingBase comment for more information
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if s.colorMode == ColorMode.RGB then
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ra, rb, rc, rd =
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p:getColor(ba).rgbaPixel,
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p:getColor(bb).rgbaPixel,
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p:getColor(bc).rgbaPixel,
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p:getColor(bd).rgbaPixel
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else
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ra, rb, rc, rd =
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p:getColor(ba).grayPixel,
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p:getColor(bb).grayPixel,
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p:getColor(bc).grayPixel,
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p:getColor(bd).grayPixel
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end
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else
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ra, rb, rc, rd = a, b, c, d
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end
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array_to_pixels({ a, a, a,
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a, a, a,
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a, a, a }, app.activeImage)
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-- Simple
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expect_img(app.activeImage,
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{ a, a, a,
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a, a, a,
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a, a, a })
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app.useTool{ tool=pencil, brush=brush, points={ Point(2, 2) },
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ink=Ink.SIMPLE }
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expect_img(app.activeImage,
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{ a, a, a,
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a, a, rd,
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a, rc, a })
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-- Alpha Compositing
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app.useTool{ tool=pencil, brush=brush, points={ Point(1, 1) },
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ink=Ink.ALPHA_COMPOSITING, opacity=255 }
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expect_img(app.activeImage,
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{ a, rd, a,
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rc, a, rd,
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a, rc, a })
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local qc, qd
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if s.colorMode == ColorMode.GRAY and
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brushColorMode == ColorMode.INDEXED then
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qc = gray(pc.grayaV(rc)/2)
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qd = gray(pc.grayaV(rd)/2)
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else
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qc, qd = rb, rc
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end
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app.useTool{ tool=pencil, brush=brush, points={ Point(1, 2) },
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ink=Ink.ALPHA_COMPOSITING, opacity=128 }
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expect_img(app.activeImage,
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{ a, rd, a,
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rc, qd, rd,
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qc, rc, a })
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-- TODO test Lock Alpha, Copy Color+Alpha, Shading...
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end
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for j = 1,#colorModes do
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test_custom_brush_inks(colorModes[j])
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end
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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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local inks = { Ink.SIMPLE, Ink.ALPHA_COMPOSITING }
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-- k=1 -> transparent layer
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-- k=2 -> background layer
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for k=1,2 do
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if k == 2 then app.command.BackgroundFromLayer() end
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-- i=1 -> simple ink
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-- i=2 -> alpha compositing ink
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for i = 1,2 do
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-- j=color index
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for j = 0,4 do
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expect_img(app.activeImage, { 0 })
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app.useTool{ tool="pencil", color=j, points={ Point(0, 0) },
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ink=inks[i], opacity=255 }
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expect_img(app.activeImage, { j })
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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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end
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for i = 1,#colorModes do
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test_inks(colorModes[i])
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end
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test_alpha_compositing_on_indexed_with_full_opacity_and_repeated_colors_in_palette()
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----------------------------------------------------------------------
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-- Test painting with transparent color on indexed
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----------------------------------------------------------------------
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do
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local s = Sprite(2, 2, ColorMode.INDEXED)
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s.transparentColor = 0
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app.bgColor = 0
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app.command.BackgroundFromLayer()
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assert(app.activeLayer.isBackground)
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expect_img(app.activeImage, { 0, 0,
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0, 0 })
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app.useTool{ tool="pencil", color=Color{r=0,g=0,b=0},
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points={ Point(0, 0) },
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ink=Ink.SIMPLE }
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expect_img(app.activeImage, { 0, 0,
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0, 0 })
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-- Test that painting in the background layer with transparent color
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-- with alpha compositing and all opacity=255, will use the transparent
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-- index anyway. Reported here: https://github.com/aseprite/aseprite/issues/3047
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app.useTool{ tool="pencil", color=0,
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points={ Point(0, 0) },
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ink=Ink.ALPHA_COMPOSITING,
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opacity=255 }
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expect_img(app.activeImage, { 0, 0,
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0, 0 })
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-- Other cases should keep working
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local p = s.palettes[1]
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-- palette with only 3 colors: white, gray (50%), black
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p:setColor(0, Color{ r=255, g=255, b=255 })
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p:setColor(1, Color{ r=128, g=128, b=128 })
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p:setColor(2, Color{ r=0, g=0, b=0 })
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app.useTool{ tool="paint_bucket", color=2,
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points={ Point(0, 0) },
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ink=Ink.SIMPLE }
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expect_img(app.activeImage, { 2, 2,
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2, 2 })
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-- White over black w/opacity=50% => gray
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app.useTool{ tool="pencil", color=0,
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points={ Point(0, 0) },
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ink=Ink.ALPHA_COMPOSITING,
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opacity=128 }
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expect_img(app.activeImage, { 1, 2,
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2, 2 })
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-- White over gray w/opacity=51% => white
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app.useTool{ tool="pencil", color=0,
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points={ Point(0, 0) },
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ink=Ink.ALPHA_COMPOSITING,
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opacity=129 }
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expect_img(app.activeImage, { 0, 2,
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2, 2 })
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end
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