There is a fastpath in fbBlt() using memcpy if the source and dest rasters are
properly aligned. This fastpath rely on MEMCPY_WRAPPED, which is (sometime) a
mere memcpy().
So, if the rasters do overlap the behavior is undefined. On my loongson (mips)
at home, it segfaults, bus error or sometime
On Thu, 2010-02-04 at 15:50 +0100, ri...@happyleptic.org wrote:
There is a fastpath in fbBlt() using memcpy if the source and dest rasters are
properly aligned. This fastpath rely on MEMCPY_WRAPPED, which is (sometime) a
mere memcpy().
So, if the rasters do overlap the behavior is undefined.
ri...@happyleptic.org writes:
There is a fastpath in fbBlt() using memcpy if the source and dest rasters are
properly aligned. This fastpath rely on MEMCPY_WRAPPED, which is (sometime) a
mere memcpy().
So, if the rasters do overlap the behavior is undefined. On my loongson (mips)
at home,
-[ Thu, Feb 04, 2010 at 10:44:03AM -0500, Adam Jackson ]
Yeah, probably.
So you fix it ?
Or maybe that's better to check for overlap in fbBlt so that we
still use memcpy which should be faster, avoiding the fastpath when
src and dest overlap ?
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