diff options
| author | Tor Andersson <tor@ghostscript.com> | 2004-11-05 07:57:47 +0100 |
|---|---|---|
| committer | Tor Andersson <tor@ghostscript.com> | 2004-11-05 07:57:47 +0100 |
| commit | 24ee8c1e74d613b1ec394c7380b39349f07d47d6 (patch) | |
| tree | 07c964441d983c713c05090021ce6da1e1c132fe /base/matrix.c | |
| parent | cbbee31601e34f1f513a4d046d52963baebf07fa (diff) | |
| download | mupdf-24ee8c1e74d613b1ec394c7380b39349f07d47d6.tar.xz | |
tiling patterns
Diffstat (limited to 'base/matrix.c')
| -rw-r--r-- | base/matrix.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/base/matrix.c b/base/matrix.c index 659193f5..43c3f4e1 100644 --- a/base/matrix.c +++ b/base/matrix.c @@ -85,3 +85,22 @@ fz_transformpoint(fz_matrix m, fz_point p) return t; } +fz_rect +fz_transformaabb(fz_matrix m, fz_rect r) +{ + fz_point s, t, u, v; + s.x = r.min.x; s.y = r.min.y; + t.x = r.min.x; t.y = r.max.y; + u.x = r.max.x; u.y = r.max.y; + v.x = r.max.x; v.y = r.min.y; + s = fz_transformpoint(m, s); + t = fz_transformpoint(m, t); + u = fz_transformpoint(m, u); + v = fz_transformpoint(m, v); + r.min.x = MIN4(s.x, t.x, u.x, v.x); + r.min.y = MIN4(s.y, t.y, u.y, v.y); + r.max.x = MAX4(s.x, t.x, u.x, v.x); + r.max.y = MAX4(s.y, t.y, u.y, v.y); + return r; +} + |