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tga_encoder
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Generate TGA type 2 and type 10 test textures using loops

This commit is contained in:
Nils Dagsson Moskopp 2023-10-18 00:27:04 +02:00
parent 619e49d3b7
commit 64d20ccab8
Signed by: erle
GPG Key ID: A3BC671C35191080
1 changed files with 55 additions and 55 deletions
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110
tools/generate_test_textures.lua
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@ -66,7 +66,7 @@ local pixels_grayscale_by_scanline_order = {
}
local colormap_32bpp = {
{ 0, 0, 0, 128 },
{ 0, 0, 0, 127 },
{ 255, 0, 0, 255 },
{ 0, 255, 0, 255 },
{ 0, 0, 255, 255 },
@ -131,7 +131,7 @@ for _, color_format in ipairs(
end
end
local _ = { 0, 0, 0, 128 }
local _ = { 0, 0, 0, 127 }
local R = { 255, 0, 0, 255 }
local G = { 0, 255, 0, 255 }
local B = { 0, 0, 255, 255 }
@ -158,25 +158,10 @@ local pixels_rgba_tb = {
{ _, _, _, _, _, B, _, B, },
}
image_rgba_bt = tga_encoder.image(pixels_rgba_bt)
image_rgba_tb = tga_encoder.image(pixels_rgba_tb)
image_rgba_bt:save(
"type2_32bpp_bt.tga",
{ color_format="B8G8R8A8", compression="RAW", scanline_order = "bottom-top" }
)
image_rgba_tb:save(
"type2_32bpp_tb.tga",
{ color_format="B8G8R8A8", compression="RAW", scanline_order = "top-bottom" }
)
image_rgba_bt:save(
"type10_32bpp_bt.tga",
{ color_format="B8G8R8A8", compression="RLE", scanline_order = "bottom-top" }
)
image_rgba_tb:save(
"type10_32bpp_tb.tga",
{ color_format="B8G8R8A8", compression="RLE", scanline_order = "top-bottom" }
)
local pixels_rgba_by_scanline_order = {
["bottom-top"] = pixels_rgba_bt,
["top-bottom"] = pixels_rgba_tb,
}
local _ = { 0, 0, 0 }
local R = { 255, 0, 0 }
@ -205,38 +190,53 @@ local pixels_rgb_tb = {
{ _, _, _, _, _, B, _, B, },
}
image_rgb_bt = tga_encoder.image(pixels_rgb_bt)
image_rgb_tb = tga_encoder.image(pixels_rgb_tb)
local pixels_rgb_by_scanline_order = {
["bottom-top"] = pixels_rgb_bt,
["top-bottom"] = pixels_rgb_tb,
}
image_rgb_bt:save(
"type2_24bpp_bt.tga",
{ color_format="B8G8R8", compression="RAW", scanline_order = "bottom-top" }
)
image_rgb_tb:save(
"type2_24bpp_tb.tga",
{ color_format="B8G8R8", compression="RAW", scanline_order = "top-bottom" }
)
image_rgb_bt:save(
"type10_24bpp_bt.tga",
{ color_format="B8G8R8", compression="RLE", scanline_order = "bottom-top" }
)
image_rgb_tb:save(
"type10_24bpp_tb.tga",
{ color_format="B8G8R8", compression="RLE", scanline_order = "top-bottom" }
)
image_rgb_bt:save(
"type2_16bpp_bt.tga",
{ color_format="A1R5G5B5", compression="RAW", scanline_order = "bottom-top" }
)
image_rgb_tb:save(
"type2_16bpp_tb.tga",
{ color_format="A1R5G5B5", compression="RAW", scanline_order = "top-bottom" }
)
image_rgb_bt:save(
"type10_16bpp_bt.tga",
{ color_format="A1R5G5B5", compression="RLE", scanline_order = "bottom-top" }
)
image_rgb_tb:save(
"type10_16bpp_tb.tga",
{ color_format="A1R5G5B5", compression="RLE", scanline_order = "top-bottom" }
)
local tga_type_by_compression = {
["RAW"] = "2",
["RLE"] = "10",
}
local pixels_by_scanline_order_by_color_format = {
["A1R5G5B5"] = pixels_rgba_by_scanline_order,
["B8G8R8"] = pixels_rgb_by_scanline_order,
["B8G8R8A8"] = pixels_rgba_by_scanline_order,
}
for _, color_format in ipairs(
tga_encoder.features.color_format
) do
for _, compression in ipairs(
tga_encoder.features.compression
) do
for _, scanline_order in ipairs(
tga_encoder.features.scanline_order
) do
if ("Y8" ~= color_format) then
local tga_type = tga_type_by_compression[
compression
]
local filename = "type" .. tga_type ..
'_' .. color_format ..
'_' .. scanline_order ..
'.tga'
local pixels = pixels_by_scanline_order_by_color_format[
color_format
][
scanline_order
]
local properties = {
color_format = color_format,
compression = compression,
scanline_order = scanline_order,
}
print(filename)
local image = tga_encoder.image(pixels)
image:save(filename, properties)
end
end
end
end