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polygon: Reorder conditionals based on likelihood.

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The vast majority of edges will be unclipped, so process those first.
This commit is contained in:
Chris Wilson 2010-06-11 10:59:17 +01:00
parent 55037bfb24
commit 290749bdb5
1 changed files with 15 additions and 15 deletions
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30
src/cairo-polygon.c
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@ -140,7 +140,7 @@ _add_edge (cairo_polygon_t *polygon,
assert (top < bottom);
if (polygon->num_edges == polygon->edges_size) {
if (unlikely (polygon->num_edges == polygon->edges_size)) {
if (! _cairo_polygon_grow (polygon))
return;
}
@ -197,7 +197,20 @@ _add_clipped_edge (cairo_polygon_t *polygon,
if (bottom <= limits->p1.y)
continue;
if (p1->x <= limits->p1.x && p2->x <= limits->p1.x)
if (p1->x >= limits->p1.x && p2->x >= limits->p1.x &&
p1->x <= limits->p2.x && p2->x <= limits->p2.x)
{
top_y = top;
if (top_y < limits->p1.y)
top_y = limits->p1.y;
bot_y = bottom;
if (bot_y > limits->p2.y)
bot_y = limits->p2.y;
_add_edge (polygon, p1, p2, top_y, bot_y, dir);
}
else if (p1->x <= limits->p1.x && p2->x <= limits->p1.x)
{
p[0].x = limits->p1.x;
p[0].y = limits->p1.y;
@ -229,19 +242,6 @@ _add_clipped_edge (cairo_polygon_t *polygon,
_add_edge (polygon, &p[0], &p[1], top_y, bot_y, dir);
}
else if (p1->x >= limits->p1.x && p2->x >= limits->p1.x &&
p1->x <= limits->p2.x && p2->x <= limits->p2.x)
{
top_y = top;
if (top_y < limits->p1.y)
top_y = limits->p1.y;
bot_y = bottom;
if (bot_y > limits->p2.y)
bot_y = limits->p2.y;
_add_edge (polygon, p1, p2, top_y, bot_y, dir);
}
else
{
int left_y, right_y;