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bug 577707 - some Indic scripts rendered with incorrect font/glyphs on OS X. r=jdaggett a=blocking-betaN

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This commit is contained in:
Jonathan Kew 2010-10-07 08:59:15 +01:00
parent 799205353c
commit 339859c3b4
1 changed files with 4 additions and 17 deletions
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21
gfx/thebes/gfxFontUtils.h
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@ -227,10 +227,7 @@ public:
}
Block *block = mBlocks[blockIndex];
if (!block) {
block = new Block;
if (NS_UNLIKELY(!block)) // OOM
return;
mBlocks[blockIndex] = block;
return;
}
block->mBits[(aIndex>>3) & (BLOCK_SIZE - 1)] &= ~(1 << (aIndex & 0x7));
}
@ -248,22 +245,12 @@ public:
for (PRUint32 i = startIndex; i <= endIndex; ++i) {
const PRUint32 blockFirstBit = i * BLOCK_SIZE_BITS;
const PRUint32 blockLastBit = blockFirstBit + BLOCK_SIZE_BITS - 1;
Block *block = mBlocks[i];
if (!block) {
PRBool fullBlock = PR_FALSE;
if (aStart <= blockFirstBit && aEnd >= blockLastBit)
fullBlock = PR_TRUE;
block = new Block(fullBlock ? 0xFF : 0);
if (NS_UNLIKELY(!block)) // OOM
return;
mBlocks[i] = block;
if (fullBlock)
continue;
// any nonexistent block is implicitly all clear,
// so there's no need to even create it
continue;
}
const PRUint32 start = aStart > blockFirstBit ? aStart - blockFirstBit : 0;