fdo-mirrors/cairo
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/cairo/cairo.git synced 2026-02-14 05:10:34 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

tessellator bug fix: fill-missed-stop

Browse source 
Fixes the regression exhibited by the test fill-missed-stop,
where the tessellator would sometimes extend a trapezoid
too far below the end of the right edge.
This commit is contained in:
M Joonas Pihlaja 2006-12-05 21:38:25 +02:00
parent 614117e487
commit e6c8febca7
1 changed files with 7 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
src/cairo-bentley-ottmann.c
View file

@ -1064,15 +1064,21 @@ _cairo_bo_edge_end_trap (cairo_bo_edge_t *left,
cairo_fixed_t fixed_top, fixed_bot;
cairo_status_t status = CAIRO_STATUS_SUCCESS;
cairo_bo_trap_t *trap = left->deferred_trap;
cairo_bo_edge_t *right;
if (!trap)
return CAIRO_STATUS_SUCCESS;
/* If the right edge of the trapezoid stopped earlier than the
* left edge, then cut the trapezoid bottom early. */
right = trap->right;
if (right->bottom.y < bot)
bot = right->bottom.y;
fixed_top = trap->top >> CAIRO_BO_GUARD_BITS;
fixed_bot = bot >> CAIRO_BO_GUARD_BITS;
if (fixed_top < fixed_bot) {
cairo_bo_edge_t *right = trap->right;
cairo_point_t left_top, left_bot, right_top, right_bot;
left_top.x = left->top.x >> CAIRO_BO_GUARD_BITS;