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tga_encoder
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base: erle:fa28f4c8ded6e3ea0c01990af47ff9d4713809c1
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erle:master
erle:features-table
erle:2023-09-22
erle:2023-09-18
erle:2023-08-27
erle:2022-07-31
erle:2022-05-19
erle:2022-05-16
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compare: erle:48d94720c10ada906ed10545b70fc3012856a150
Branches Tags
erle:features-table
erle:master
erle:2023-09-22
erle:2023-09-18
erle:2023-08-27
erle:2022-07-31
erle:2022-05-19
erle:2022-05-16

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118
tools/generate_test_textures.lua
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@ -28,108 +28,46 @@ local pixels_colormapped_tb = {
{ _, _, _, _, _, B, _, B, },
}
local pixels_colormapped_by_scanline_order = {
["bottom-top"] = pixels_colormapped_bt,
["top-bottom"] = pixels_colormapped_tb,
}
image_colormapped_bt = tga_encoder.image(pixels_colormapped_bt)
image_colormapped_tb = tga_encoder.image(pixels_colormapped_tb)
local _ = { 0 }
local R = { 127 }
local G = { 255 }
local B = { 191 }
local pixels_grayscale_bt = {
{ _, _, _, _, _, B, _, B, },
{ _, _, _, _, _, B, B, B, },
{ _, _, G, G, G, B, _, B, },
{ _, _, G, _, G, B, B, B, },
{ _, R, G, _, _, _, _, _, },
{ _, R, G, G, G, _, _, _, },
{ _, R, _, _, _, _, _, _, },
{ R, R, R, _, _, _, _, _, },
}
local pixels_grayscale_tb = {
{ R, R, R, _, _, _, _, _, },
{ _, R, _, _, _, _, _, _, },
{ _, R, G, G, G, _, _, _, },
{ _, R, G, _, _, _, _, _, },
{ _, _, G, _, G, B, B, B, },
{ _, _, G, G, G, B, _, B, },
{ _, _, _, _, _, B, B, B, },
{ _, _, _, _, _, B, _, B, },
}
local pixels_grayscale_by_scanline_order = {
["bottom-top"] = pixels_grayscale_bt,
["top-bottom"] = pixels_grayscale_tb,
}
local colormap_32bpp = {
colormap_32bpp = {
{ 0, 0, 0, 128 },
{ 255, 0, 0, 255 },
{ 0, 255, 0, 255 },
{ 0, 0, 255, 255 },
}
image_colormapped_bt:save(
"type1_32bpp_bt.tga",
{ colormap = colormap_32bpp, color_format = "B8G8R8A8", scanline_order = "bottom-top" }
)
image_colormapped_tb:save(
"type1_32bpp_tb.tga",
{ colormap = colormap_32bpp, color_format = "B8G8R8A8", scanline_order = "top-bottom" }
)
image_colormapped_bt:save(
"type1_16bpp_bt.tga",
{ colormap = colormap_32bpp, color_format = "A1R5G5B5", scanline_order = "bottom-top" }
)
image_colormapped_tb:save(
"type1_16bpp_tb.tga",
{ colormap = colormap_32bpp, color_format = "A1R5G5B5", scanline_order = "top-bottom" }
)
local colormap_24bpp = {
colormap_24bpp = {
{ 0, 0, 0 },
{ 255, 0, 0 },
{ 0, 255, 0 },
{ 0, 0, 255 },
}
local colormap_16bpp = {
{ 0, 0, 0, 0 },
{ 255, 0, 0, 255 },
{ 0, 255, 0, 255 },
{ 0, 0, 255, 255 },
}
local colormap_by_color_format = {
["A1R5G5B5"] = colormap_16bpp,
["B8G8R8"] = colormap_24bpp,
["B8G8R8A8"] = colormap_32bpp,
}
for _, color_format in ipairs(
tga_encoder.features.color_format
) do
for _, scanline_order in ipairs(
tga_encoder.features.scanline_order
) do
local filename
local pixels
if ("Y8" == color_format) then
filename = "type3" ..
'_' .. color_format ..
'_' .. scanline_order ..
'.tga'
pixels = pixels_grayscale_by_scanline_order[
scanline_order
]
else
filename = "type1" ..
'_' .. color_format ..
'_' .. scanline_order ..
'.tga'
pixels = pixels_colormapped_by_scanline_order[
scanline_order
]
end
local colormap = colormap_by_color_format[
color_format
]
local properties = {
colormap = colormap,
color_format = color_format,
scanline_order = scanline_order,
}
print(filename)
local image = tga_encoder.image(pixels)
image:save(filename, properties)
end
end
image_colormapped_bt:save(
"type1_24bpp_bt.tga",
{ colormap = colormap_32bpp, color_format = "B8G8R8", scanline_order = "bottom-top" }
)
image_colormapped_tb:save(
"type1_24bpp_tb.tga",
{ colormap = colormap_32bpp, color_format = "B8G8R8", scanline_order = "top-bottom" }
)
local _ = { 0, 0, 0, 128 }
local R = { 255, 0, 0, 255 }