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png bug fix?

This commit is contained in:
Adam D. Ruppe 2016-06-20 20:31:55 -04:00
parent ed23f6a91e
commit 9942a07f70
1 changed files with 1 additions and 0 deletions
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@ -1809,6 +1809,7 @@ immutable(ubyte)[] unfilter(ubyte filterType, in ubyte[] data, in ubyte[] previo
return assumeUnique(arr); return assumeUnique(arr);
case 3: case 3:
auto arr = data.dup; auto arr = data.dup;
if(previousLine.length)
foreach(i; 0 .. arr.length) { foreach(i; 0 .. arr.length) {
auto prev = i < bpp ? 0 : arr[i - bpp]; auto prev = i < bpp ? 0 : arr[i - bpp];
arr[i] += cast(ubyte) arr[i] += cast(ubyte)