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sna: Avoid the penalty of only writing partial channels with glyphs 

Yes, writing 3 channels is slower than writing 4. But it's okay we
simply ignore the alpha value anyway.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-11-08 13:51:00 +00:00
parent 576c5169ef
commit 9a8d3a9dff
1 changed files with 2 additions and 2 deletions
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4
src/sna/sna_accel.c
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@ -6941,7 +6941,7 @@ sna_glyph_blt(DrawablePtr drawable, GCPtr gc,
_kgem_set_mode(&sna->kgem, KGEM_BLT);
}
b = sna->kgem.batch + sna->kgem.nbatch;
b[0] = XY_SETUP_BLT | 1 << 20;
b[0] = XY_SETUP_BLT | 3 << 20;
b[1] = bo->pitch;
if (sna->kgem.gen >= 40) {
if (bo->tiling)
@ -6993,7 +6993,7 @@ sna_glyph_blt(DrawablePtr drawable, GCPtr gc,
_kgem_set_mode(&sna->kgem, KGEM_BLT);
b = sna->kgem.batch + sna->kgem.nbatch;
b[0] = XY_SETUP_BLT | 1 << 20;
b[0] = XY_SETUP_BLT | 3 << 20;
b[1] = bo->pitch;
if (sna->kgem.gen >= 40) {
if (bo->tiling)