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sna: Fix chunking for large stipples 

Reported-and-tested-by: Matti Hamalainen <ccr@tnsp.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=49510
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-05-29 21:28:39 +01:00
parent 12af825811
commit 68874e2d69
1 changed files with 5 additions and 6 deletions
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11
src/sna/sna_accel.c
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@ -9751,7 +9751,7 @@ sna_poly_fill_rect_stippled_n_box(struct sna *sna,
uint32_t *b;
for (y1 = box->y1; y1 < box->y2; y1 = y2) {
int oy = (y1 - origin->y) % gc->stipple->drawable.height;
int oy = (y1 - origin->y) % gc->stipple->drawable.height;
y2 = box->y2;
if (y2 - y1 > gc->stipple->drawable.height - oy)
@ -9765,12 +9765,11 @@ sna_poly_fill_rect_stippled_n_box(struct sna *sna,
ox = (x1 - origin->x) % gc->stipple->drawable.width;
bx1 = ox & ~7;
bx2 = ox + (x2 - x1);
if (bx2 - bx1 > gc->stipple->drawable.width) {
bx2 = bx1 + gc->stipple->drawable.width;
x2 = x1 + (bx1-ox) + gc->stipple->drawable.width;
if (bx2 > gc->stipple->drawable.width) {
bx2 = gc->stipple->drawable.width;
x2 = x1 + bx2-ox;
}
bx2 = (bx2 + 7) & ~7;
bw = (bx2 - bx1)/8;
bw = (bx2 - bx1 + 7)/8;
bw = ALIGN(bw, 2);
bh = y2 - y1;