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| author | Robin Watts <robin.watts@artifex.com> | 2013-09-30 15:53:54 +0100 |
|---|---|---|
| committer | Robin Watts <robin.watts@artifex.com> | 2013-09-30 17:21:42 +0100 |
| commit | 9805dec32d8b7cb2fcc3251fdb670f5065e5f57e (patch) | |
| tree | a516ea2bf8d2fb98421cf3dcb51a80ef1e69b6fa /source/fitz/draw-edge.c | |
| parent | dc371071308690a9dc84701fdb2cce6a01ba9338 (diff) | |
| download | mupdf-9805dec32d8b7cb2fcc3251fdb670f5065e5f57e.tar.xz | |
Bug 694526: Fix hang in stroking path.
The first file of this bug (hang-66.pdf) hangs while stroking a
VERY long line segment; so long that 'used' is sufficinetly large
that:
used += dash_segment_len
doesn't result in a change in the value of used. The fix is
to clip strokes to the edge of the gel's clip area, meaning
that this should never occur.
Diffstat (limited to 'source/fitz/draw-edge.c')
| -rw-r--r-- | source/fitz/draw-edge.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/source/fitz/draw-edge.c b/source/fitz/draw-edge.c index 59d92967..1b41414d 100644 --- a/source/fitz/draw-edge.c +++ b/source/fitz/draw-edge.c @@ -254,6 +254,19 @@ fz_bound_gel(const fz_gel *gel, fz_irect *bbox) return bbox; } +fz_rect * +fz_gel_scissor(const fz_gel *gel, fz_rect *r) +{ + fz_aa_context *ctxaa = gel->ctx->aa; + + r->x0 = gel->clip.x0 / fz_aa_hscale; + r->x1 = gel->clip.x1 / fz_aa_vscale; + r->y0 = gel->clip.y0 / fz_aa_hscale; + r->y1 = gel->clip.y1 / fz_aa_vscale; + + return r; +} + enum { INSIDE, OUTSIDE, LEAVE, ENTER }; #define clip_lerp_y(v,m,x0,y0,x1,y1,t) clip_lerp_x(v,m,y0,x0,y1,x1,t) |