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glamor: Fix prepare_access on 1bpp data.

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Apparently I don't have anything hitting this path, so I'm not sure if
it's good or not.
This commit is contained in:
Eric Anholt 2010-02-08 17:14:34 +01:00 committed by Zhigang Gong
parent c3c3a63497
commit 5332547a0a
1 changed files with 3 additions and 2 deletions
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5
glamor/glamor_core.c
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@ -351,15 +351,16 @@ glamor_prepare_access(DrawablePtr drawable, glamor_access_t access)
for (y = 0; y < pixmap->drawable.height; y++) {
uint8_t *read_row = read +
read_stride * (pixmap->drawable.height - y - 1);
uint8_t *write_row = data + y * stride;
for (x = 0; x < pixmap->drawable.width; x++) {
int index = x / 8;
int bit = 1 << (x % 8);
if (read_row[x])
data[index] |= bit;
write_row[index] |= bit;
else
data[index] &= ~bit;
write_row[index] &= ~bit;
}
}
} else {