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sna: Faster unclipped rectilinear segments 

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-10-28 16:44:16 +01:00
parent 3cd909cfe9
commit d3c7ee9211
1 changed files with 82 additions and 38 deletions
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120
src/sna/sna_accel.c
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@ -3332,51 +3332,95 @@ sna_poly_segment_blt(DrawablePtr drawable,
if (!clipped) {
dx += drawable->x;
dy += drawable->y;
do {
int x, y, width, height;
if (dx|dy) {
do {
int nbox = n;
if (nbox > ARRAY_SIZE(boxes))
nbox = ARRAY_SIZE(boxes);
n -= nbox;
do {
if (seg->x1 < seg->x2) {
b->x1 = seg->x1;
b->x2 = seg->x2;
} else {
b->x1 = seg->x2;
b->x2 = seg->x1;
}
b->x2++;
if (seg->x1 < seg->x2) {
x = seg->x1;
width = seg->x2;
} else {
x = seg->x2;
width = seg->x1;
}
width -= x - 1;
if (seg->y1 < seg->y2) {
b->y1 = seg->y1;
b->y2 = seg->y2;
} else {
b->y1 = seg->y2;
b->y2 = seg->y1;
}
b->y2++;
if (seg->y1 < seg->y2) {
y = seg->y1;
height = seg->y2;
} else {
y = seg->y2;
height = seg->y1;
}
height -= y - 1;
/* don't paint last pixel */
if (gc->capStyle == CapNotLast) {
if (seg->x1 == seg->x2)
b->y2--;
else
b->x2--;
}
/* don't paint last pixel */
if (gc->capStyle == CapNotLast) {
if (width == 1)
height--;
else
width--;
}
b->x1 += dx;
b->x2 += dx;
b->y1 += dy;
b->y2 += dy;
b++;
seg++;
} while (--nbox);
DBG(("%s: [%d] (%d, %d)x(%d, %d) + (%d, %d)\n", __FUNCTION__, n,
x, y, width, height, dx, dy));
b->x1 = x + dx;
b->x2 = b->x1 + width;
b->y1 = y + dy;
b->y2 = b->y1 + height;
if (++b == last_box) {
fill.boxes(sna, &fill, boxes, last_box-boxes);
fill.boxes(sna, &fill, boxes, b-boxes);
if (damage)
sna_damage_add_boxes(damage, boxes, last_box-boxes, 0, 0);
sna_damage_add_boxes(damage, boxes, b-boxes, 0, 0);
b = boxes;
}
} while (n);
} else {
do {
int nbox = n;
if (nbox > ARRAY_SIZE(boxes))
nbox = ARRAY_SIZE(boxes);
n -= nbox;
do {
if (seg->x1 < seg->x2) {
b->x1 = seg->x1;
b->x2 = seg->x2;
} else {
b->x1 = seg->x2;
b->x2 = seg->x1;
}
b->x2++;
seg++;
} while (--n);
if (seg->y1 < seg->y2) {
b->y1 = seg->y1;
b->y2 = seg->y2;
} else {
b->y1 = seg->y2;
b->y2 = seg->y1;
}
b->y2++;
/* don't paint last pixel */
if (gc->capStyle == CapNotLast) {
if (seg->x1 == seg->x2)
b->y2--;
else
b->x2--;
}
b++;
seg++;
} while (--nbox);
fill.boxes(sna, &fill, boxes, b-boxes);
if (damage)
sna_damage_add_boxes(damage, boxes, b-boxes, 0, 0);
b = boxes;
} while (n);
}
} else {
RegionRec clip;