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This commit is contained in:
Pierre-Yves Rollo
2025-10-07 11:08:09 +02:00
parent cbc594343c
commit e592b52b18
4 changed files with 99 additions and 65 deletions
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22
font_api/tools/make_font.lua
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@@ -79,8 +79,8 @@ local function compute_tile_sizes(texture_size)
return results
end
-- This will give enough combinations (720 is 2 * 2 * 2 * 2 * 3 * 3 * 5)
tile_widths = compute_tile_sizes(720)
-- This will give enough combinations (360 is 2 * 2 * 2 * 3 * 3 * 5)
tile_widths = compute_tile_sizes(360)
-- Table width has to be sorted
table.sort(tile_widths)
@@ -177,9 +177,11 @@ local glyph_xs = {} -- x for each glyph
local glyph_ys = {} -- y for each glyph
local glyph_ns = {} -- n of tiles in sheet for each glyph (=texturewidth / tilewidth)
local texture_height
local function make_final_texture(filename)
local texture_height = font_height
texture_height = font_height
local x = 0 -- cursor x
local glyph_y = 0
@@ -209,7 +211,6 @@ local function make_final_texture(filename)
"convert -channel alpha -colorspace gray -size %dx%d xc:transparent %s",
texture_width, texture_height, filename
))
print(texture_width, texture_height)
for codepoint, n in pairs(glyph_ns) do
local w = texture_width // n
@@ -232,11 +233,10 @@ local function make_final_texture(filename)
end
-- Place subtexure in texture
cmd = string.format("convert %s \\( %s -repage +%d+%d \\) -flatten %s", filename, cmd, x, y, filename)
print (cmd)
command(cmd)
end
command(string.format("convert %s -threshold 50%% %s", filename, filename))
command(string.format("convert %s -channel alpha -threshold 50%% %s", filename, filename))
end
@@ -307,22 +307,24 @@ file:write(string.format([[
font_api.register_font(
'%s',
{
version = 2,
default = true,
margintop = 3,
linespacing = -2,
height = %d,
texture_height = %d,
glyphs_height = %d,
glyphs = {
]],
fontname, font_height)
fontname, texture_height, font_height)
)
for codepoint, w in pairs(glyph_widths) do
local x = glyph_xs[codepoint]
local y = glyph_ys[codepoint]
local n = glyph_ns[codepoint]
if x ~= nil and y ~=nil and n ~= nil then
file:write(string.format(" [%d] = { w = %d, n = %f, x = %d, y = %d },\n", codepoint, w, n, x, y))
file:write(string.format(" [%d] = { %d, %d, %d, %d },\n", codepoint, w, n, x, y))
else
file:write(string.format(" [%d] = { w = %d },\n", codepoint, w))
file:write(string.format(" [%d] = { %d },\n", codepoint, w))
end
end
file:write([[