96 lines
2.0 KiB
Lua
Executable File
96 lines
2.0 KiB
Lua
Executable File
#!/usr/bin/env lua5.1
|
||
-- -*- coding: utf-8 -*-
|
||
|
||
dofile("init.lua")
|
||
dofile("../tga_encoder/init.lua")
|
||
|
||
font_1 = unicode_text.hexfont(
|
||
{
|
||
kerning = true,
|
||
}
|
||
)
|
||
font_1:load_glyphs(
|
||
io.lines("unifont.hex")
|
||
)
|
||
font_1:load_glyphs(
|
||
io.lines("U+FFFD.hex")
|
||
)
|
||
|
||
-- The following text purposely contains glyphs not in unifont.hex, to
|
||
-- show that these are rendered like U+FFFD REPLACEMENT CHARACTER (<28>).
|
||
local text = "ABC... 123!!! (*ˊᗜˋ*)/ᵗᑋᵃᐢᵏ ᵞᵒᵘ* 😁\
|
||
\
|
||
U+0077 w LATIN SMALL LETTER W\
|
||
U+00F0 ð LATIN SMALL LETTER ETH\
|
||
U+2665 ♥ BLACK HEART SUIT\
|
||
U+10348 𐍈 GOTHIC LETTER HWAIR"
|
||
local pixels = font_1:render_text(text)
|
||
local image = tga_encoder.image(pixels)
|
||
image:save("test.tga")
|
||
|
||
font_2 = unicode_text.hexfont(
|
||
{
|
||
background_color = { 1 },
|
||
foreground_color = { 0 },
|
||
}
|
||
)
|
||
font_2:load_glyphs(
|
||
io.lines("unifont.hex")
|
||
)
|
||
font_2:load_glyphs(
|
||
io.lines("unifont_upper.hex")
|
||
)
|
||
local file = io.open("UTF-8-demo.txt")
|
||
|
||
-- encode image with colormap (palette)
|
||
tga_encoder.image(
|
||
font_2:render_text(
|
||
file:read("*all")
|
||
)
|
||
):save(
|
||
"UTF-8-demo.tga",
|
||
{
|
||
colormap = {
|
||
{ 0xFF, 0xFF, 0xFF },
|
||
{ 0x00, 0x00, 0xFF },
|
||
}
|
||
}
|
||
)
|
||
file:close()
|
||
|
||
font_2.background_color = { 0, 0, 0 }
|
||
font_2.foreground_color = { 255, 255, 255 }
|
||
font_2.tabulator_size = 4 * 8
|
||
local file = io.open("example.txt")
|
||
local text = file:read("*all")
|
||
file:close()
|
||
local pixels = font_2:render_text(text)
|
||
|
||
-- colorize text pixels
|
||
for h = 1, #pixels do
|
||
for w = 1, #pixels[h] do
|
||
local pixel = pixels[h][w]
|
||
if (
|
||
255 == pixel[1] and
|
||
255 == pixel[2] and
|
||
255 == pixel[3]
|
||
) then
|
||
pixel = {
|
||
( h + w ) % 128 + 128,
|
||
( h % w ) % 128 + 128,
|
||
( h - w ) % 128 + 128,
|
||
}
|
||
end
|
||
pixels[h][w] = pixel
|
||
end
|
||
end
|
||
|
||
-- encode image with 15-bit colors
|
||
tga_encoder.image(pixels):save(
|
||
"example.tga",
|
||
{
|
||
color_format="A1R5G5B5",
|
||
compression = "RAW",
|
||
}
|
||
)
|