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naughty: fix image data copy 

Signed-off-by: Julien Danjou <julien@danjou.info>
This commit is contained in:
Julien Danjou 2011-10-04 15:23:11 +02:00
parent 50bc79e516
commit ddf8f096bf
1 changed files with 5 additions and 3 deletions
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8
lib/naughty.lua.in
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@ -521,13 +521,15 @@ if capi.dbus then
-- 1 -> width, 2 -> height, 3 -> rowstride, 4 -> has alpha
-- 5 -> bits per sample, 6 -> channels, 7 -> data
local imgdata
local imgdata = ""
-- If has alpha (ARGB32)
if hints.icon_data[6] == 4 then
imgdata = hints.icon_data[7]
for i = 1, #hints.icon_data[7], 4 do
imgdata = imgdata .. hints.icon_data[7]:sub(i, i + 2):reverse()
imgdata = imgdata .. hints.icon_data[7]:sub(i + 3, i + 3)
end
-- If has not alpha (RGB24)
elseif hints.icon_data[6] == 3 then
imgdata = ""
for i = 1, #hints.icon_data[7], 3 do
imgdata = imgdata .. hints.icon_data[7]:sub(i , i + 2):reverse()
imgdata = imgdata .. string.format("%c", 255) -- alpha is 255