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authorLuca Barbieri <luca@luca-barbieri.com>2009-12-30 02:54:39 +0100
committerFrancisco Jerez <currojerez@riseup.net>2009-12-30 14:37:19 +0100
commit9656177bc0fac5785d01900a768c2855bdc04b5a (patch)
treeea17536e44438bde6735a8e1fcc61b54a194e137 /bin/confdiff.sh
parent1677d5c0aebe8edb54aa3236294acede536013f3 (diff)
nouveau: Fix glTexSubImage on swizzled surfaces on <=NV40
Currently in nvXX_transfer_new a temporary as large as the surface is created. If the subrectangle is not the whole texture we would need to read back the whole texture, but we aren't. Thus, everything but the subrectangle specified is loaded as garbage. This can be seen in progs/demos/ray. This patch fixes the problem by creating a temporary that covers only the desired subrectangle. That makes us hit an alignment assert in nv04_surface_2d.c. Fix it using the point registers instead of manipulating the swizzled surface offset to account for the destination coordinates (which do not seem to have a 1024 limit). Signed-off-by: Francisco Jerez <currojerez@riseup.net>
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