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signs_lib
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Fix out-of-bounds textures in `[combine` (#27)

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OgelGames 2024-04-19 13:44:16 +10:00 committed by GitHub
parent e5f73438ce
commit 4fb53b67e8
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1 changed files with 12 additions and 12 deletions
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24
api.lua
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@ -467,10 +467,11 @@ signs_lib.charwidth_wide32 = build_char_db(32)
local math_max = math.max
local function fill_line(x, y, w, c, font_size, colorbgw)
local function fill_line(x, y, w, c, font_size, colorbgw, line_width)
c = c or "0"
local tex = { }
for xx = 0, math.max(0, w), colorbgw do
for xx = 0, w, colorbgw do
if x + xx > line_width then break end
table.insert(tex, (":%d,%d=signs_lib_color_"..font_size.."px_%s.png"):format(x + xx, y, c))
end
return table.concat(tex)
@ -583,9 +584,10 @@ local function make_line_texture(line, lineno, pos, line_width, line_height, cwi
end
end
if w then
width = width + w + 1
width = width + w
if width >= (line_width - cwidth_tab[" "]) then
width = 0
break
else
maxw = math_max(width, maxw)
end
@ -615,9 +617,10 @@ local function make_line_texture(line, lineno, pos, line_width, line_height, cwi
else
local w = cwidth_tab[c]
if w then
width = width + w + 1
width = width + w
if width >= (line_width - cwidth_tab[" "]) then
width = 0
break
else
maxw = math_max(width, maxw)
end
@ -633,7 +636,7 @@ local function make_line_texture(line, lineno, pos, line_width, line_height, cwi
end
i = i + 1
end
width = width + cwidth_tab[" "] + 1
width = width + cwidth_tab[" "]
maxw = math_max(width, maxw)
table.insert(words, { chars=chars, w=ch_offs })
end
@ -652,17 +655,16 @@ local function make_line_texture(line, lineno, pos, line_width, line_height, cwi
for word_i, word in ipairs(words) do
local xoffs = (xpos - start_xpos)
if (xoffs > 0) and ((xoffs + word.w) > maxw) then
table.insert(texture, fill_line(xpos, ypos, maxw, "n", font_size, colorbgw))
xpos = start_xpos
ypos = ypos + line_height + def.line_spacing
lineno = lineno + 1
if lineno >= def.number_of_lines then break end
table.insert(texture, fill_line(xpos, ypos, maxw, cur_color, font_size, colorbgw))
table.insert(texture, fill_line(xpos, ypos, maxw, cur_color, font_size, colorbgw, line_width))
end
for ch_i, ch in ipairs(word.chars) do
if ch.col ~= cur_color then
cur_color = ch.col
table.insert(texture, fill_line(xpos + ch.off, ypos, maxw, cur_color, font_size, colorbgw))
table.insert(texture, fill_line(xpos + ch.off, ypos, maxw, cur_color, font_size, colorbgw, line_width))
end
table.insert(texture, (":%d,%d=%s"):format(xpos + ch.off, ypos, ch.tex))
end
@ -671,11 +673,9 @@ local function make_line_texture(line, lineno, pos, line_width, line_height, cwi
(":%d,%d="):format(xpos + word.w, ypos) .. char_tex(font_name, " ")
)
xpos = xpos + word.w + cwidth_tab[" "]
if xpos >= (line_width + cwidth_tab[" "]) then break end
end
table.insert(texture, fill_line(xpos, ypos, maxw, "n", font_size, colorbgw))
table.insert(texture, fill_line(start_xpos, ypos + line_height, maxw, "n", font_size, colorbgw))
table.insert(texture, fill_line(xpos, ypos, maxw, "n", font_size, colorbgw, line_width))
table.insert(texture, fill_line(start_xpos, ypos + line_height, maxw, "n", font_size, colorbgw, line_width))
return table.concat(texture), lineno
end