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[tessellator] Only run sweep-line validator when debugging

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The tessellator is well-proven now. However, the sweep-line validator
consumes around 50% of the total time required to draw the fractal
Pythagoras tree (the leaves are sub-pixel rectangles, so lots of edges
to sweep through). So disable the validator, but keep it available for
debugging.
This commit is contained in:
Chris Wilson 2008-09-19 16:15:55 +01:00
parent 91f0b8b1ea
commit a6c0ebee7a
1 changed files with 10 additions and 7 deletions
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17
src/cairo-bentley-ottmann.c
View file

@ -39,6 +39,9 @@
#include "cairo-skiplist-private.h"
#include "cairo-freelist-private.h"
#define DEBUG_VALIDATE 0
#define DEBUG_PRINT_STATE 0
typedef cairo_point_t cairo_bo_point32_t;
typedef struct _cairo_bo_point128 {
@ -941,7 +944,6 @@ _cairo_bo_sweep_line_swap (cairo_bo_sweep_line_t *sweep_line,
left->prev = right;
}
#define DEBUG_PRINT_STATE 0
#if DEBUG_PRINT_STATE
static void
_cairo_bo_edge_print (cairo_bo_edge_t *edge)
@ -1177,6 +1179,7 @@ _cairo_bo_traps_fini (cairo_bo_traps_t *bo_traps)
_cairo_freelist_fini (&bo_traps->freelist);
}
#if DEBUG_VALIDATE
static void
_cairo_bo_sweep_line_validate (cairo_bo_sweep_line_t *sweep_line)
{
@ -1202,6 +1205,7 @@ _cairo_bo_sweep_line_validate (cairo_bo_sweep_line_t *sweep_line)
exit (1);
}
}
#endif
static cairo_status_t
@ -1324,9 +1328,8 @@ _cairo_bentley_ottmann_tessellate_bo_edges (cairo_bo_edge_t *edges,
#if DEBUG_PRINT_STATE
print_state ("After processing start", &event_queue, &sweep_line);
#endif
_cairo_bo_sweep_line_validate (&sweep_line);
break;
case CAIRO_BO_EVENT_TYPE_STOP:
edge = event->e1;
@ -1346,9 +1349,8 @@ _cairo_bentley_ottmann_tessellate_bo_edges (cairo_bo_edge_t *edges,
#if DEBUG_PRINT_STATE
print_state ("After processing stop", &event_queue, &sweep_line);
#endif
_cairo_bo_sweep_line_validate (&sweep_line);
break;
case CAIRO_BO_EVENT_TYPE_INTERSECTION:
edge1 = event->e1;
edge2 = event->e2;
@ -1382,10 +1384,11 @@ _cairo_bentley_ottmann_tessellate_bo_edges (cairo_bo_edge_t *edges,
#if DEBUG_PRINT_STATE
print_state ("After processing intersection", &event_queue, &sweep_line);
#endif
_cairo_bo_sweep_line_validate (&sweep_line);
break;
}
#if DEBUG_VALIDATE
_cairo_bo_sweep_line_validate (&sweep_line);
#endif
}
*num_intersections = intersection_count;