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sna/traps: Apply somes simple but common operator reduction for clipmasks 

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-03-09 10:37:34 +00:00
parent c25a3f7f46
commit bd62dc73dc
1 changed files with 20 additions and 4 deletions
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24
src/sna/sna_trapezoids.c
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@ -3354,8 +3354,10 @@ trapezoid_span_inplace(CARD8 op, PicturePtr src, PicturePtr dst,
struct inplace inplace;
span_func_t span;
PixmapPtr pixmap;
struct sna_pixmap *priv;
RegionRec region;
uint32_t color;
bool unbounded;
int16_t dst_x, dst_y;
int dx, dy;
int n;
@ -3380,18 +3382,33 @@ trapezoid_span_inplace(CARD8 op, PicturePtr src, PicturePtr dst,
return false;
}
pixmap = get_drawable_pixmap(dst->pDrawable);
priv = sna_pixmap(pixmap);
if (priv == NULL) {
DBG(("%s: fallback -- unattached\n", __FUNCTION__));
return false;
}
unbounded = false;
switch (op) {
case PictOpIn:
unbounded = true;
if (priv->clear && priv->clear_color == 0xff)
op = PictOpSrc;
break;
case PictOpAdd:
if (priv->clear && priv->clear_color == 0)
op = PictOpSrc;
break;
case PictOpSrc:
if (!fallback && is_gpu(dst->pDrawable))
return false;
break;
default:
DBG(("%s: fallback -- can not perform op [%d] in place\n",
__FUNCTION__, op));
return false;
}
if (!fallback && is_gpu(dst->pDrawable))
return false;
DBG(("%s: format=%x, op=%d, color=%x\n",
__FUNCTION__, dst->format, op, color));
@ -3497,7 +3514,6 @@ trapezoid_span_inplace(CARD8 op, PicturePtr src, PicturePtr dst,
op == PictOpSrc ? MOVE_WRITE : MOVE_WRITE | MOVE_READ))
return true;
pixmap = get_drawable_pixmap(dst->pDrawable);
get_drawable_deltas(dst->pDrawable, pixmap, &dst_x, &dst_y);
inplace.ptr = pixmap->devPrivate.ptr;
@ -3506,7 +3522,7 @@ trapezoid_span_inplace(CARD8 op, PicturePtr src, PicturePtr dst,
inplace.opacity = color >> 24;
tor_render(NULL, &tor, (void*)&inplace,
dst->pCompositeClip, span, op == PictOpIn);
dst->pCompositeClip, span, unbounded);
tor_fini(&tor);