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sna/gen6: Prefer to do fills using the BLT 

Using the BLT is substantially faster than the current shaders for solid
fill. The downside is that it invokes more ring switching.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-01-31 19:19:13 +00:00
parent 8b012de0a1
commit df4e1059a4
1 changed files with 19 additions and 11 deletions
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30
src/sna/gen6_render.c
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@ -2210,12 +2210,23 @@ gen6_composite_set_target(struct sna *sna,
return TRUE;
}
static bool prefer_blt_ring(struct sna *sna)
{
return sna->kgem.ring != KGEM_RENDER;
}
static bool
is_solid(PicturePtr picture)
{
return sna_picture_is_solid(picture, NULL);
}
static Bool
try_blt(struct sna *sna,
PicturePtr dst, PicturePtr src,
int width, int height)
{
if (sna->kgem.ring != KGEM_RENDER) {
if (prefer_blt_ring(sna)) {
DBG(("%s: already performing BLT\n", __FUNCTION__));
return TRUE;
}
@ -2241,15 +2252,12 @@ try_blt(struct sna *sna,
return TRUE;
}
return FALSE;
}
if (sna->kgem.has_semaphores) {
if (is_solid(src))
return TRUE;
}
static bool
is_solid(PicturePtr picture)
{
return picture->pDrawable->width == 1 &&
picture->pDrawable->height == 1 &&
picture->repeat;
return FALSE;
}
static bool
@ -3071,7 +3079,7 @@ static inline bool prefer_blt_copy(struct sna *sna,
struct kgem_bo *src_bo,
struct kgem_bo *dst_bo)
{
return (sna->kgem.ring != KGEM_RENDER ||
return (prefer_blt_ring(sna) ||
untiled_tlb_miss(src_bo) ||
untiled_tlb_miss(dst_bo));
}
@ -3424,7 +3432,7 @@ gen6_emit_fill_state(struct sna *sna, const struct sna_composite_op *op)
static inline bool prefer_blt_fill(struct sna *sna,
struct kgem_bo *bo)
{
return sna->kgem.ring != KGEM_RENDER || untiled_tlb_miss(bo);
return sna->kgem.has_semaphores || prefer_blt_ring(sna) || untiled_tlb_miss(bo);
}
static Bool