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nvfx: fix some subrectangle copies

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Actually, we may want to get rid of the x/y coordinates for linear
surfaces, and realign the origin from scratch if necessary, instead
of doing this "on-demand realignment".
This commit is contained in:
Luca Barbieri
2010-09-04 21:22:02 +02:00
parent 90d3291595
commit 2e6c65722a
1 changed files with 6 additions and 4 deletions
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src/gallium/drivers/nvfx/nv04_2d.c
+6 -4
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@@ -365,19 +365,21 @@ nv04_region_do_align_offset(struct nv04_region* rgn, unsigned w, unsigned h, int
{
if(rgn->pitch > 0)
{
int delta;
assert(!(rgn->offset & ((1 << rgn->bpps) - 1))); // fatal!
delta = rgn->offset & ((1 << shift) - 1);
if(h <= 1)
{
rgn->x += delta >> rgn->bpps;
int delta;
rgn->offset += rgn->y * rgn->pitch + (rgn->x << rgn->bpps);
delta = rgn->offset & ((1 << shift) - 1);
rgn->y = 0;
rgn->x = delta >> rgn->bpps;
rgn->offset -= delta;
rgn->pitch = align((rgn->x + w) << rgn->bpps, 1 << shift);
}
else
{
int delta = rgn->offset & ((1 << shift) - 1);
int newxo = (rgn->x << rgn->bpps) + delta;
int dy = newxo / rgn->pitch;
newxo -= dy * rgn->pitch;