diff options
| author | Tor Andersson <tor@ghostscript.com> | 2010-10-13 13:04:20 +0000 |
|---|---|---|
| committer | Tor Andersson <tor@ghostscript.com> | 2010-10-13 13:04:20 +0000 |
| commit | 34da1ae5a8584c3dbd3b5278c07076424378dca9 (patch) | |
| tree | c48c596f03a3a993d56b3b851f607f7f6383c347 /draw | |
| parent | 64b1c2c0b9d01abe4b37cca8929588875e6ba474 (diff) | |
| download | mupdf-34da1ae5a8584c3dbd3b5278c07076424378dca9.tar.xz | |
Remove (broken?) center-of-pixel adjustments in image rendering.
Diffstat (limited to 'draw')
| -rw-r--r-- | draw/imagedraw.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/draw/imagedraw.c b/draw/imagedraw.c index 5ffe5ed8..017eaf39 100644 --- a/draw/imagedraw.c +++ b/draw/imagedraw.c @@ -202,8 +202,8 @@ fz_paintimageimp(fz_pixmap *dst, fz_bbox scissor, fz_pixmap *img, fz_matrix ctm, ctm.b = roundup(ctm.b); ctm.c = roundup(ctm.c); ctm.d = roundup(ctm.d); - ctm.e = floorf(ctm.e);// + 0.5f; - ctm.f = floorf(ctm.f);// + 0.5f; + ctm.e = floorf(ctm.e); + ctm.f = floorf(ctm.f); } bbox = fz_roundrect(fz_transformrect(ctm, fz_unitrect)); @@ -225,9 +225,8 @@ fz_paintimageimp(fz_pixmap *dst, fz_bbox scissor, fz_pixmap *img, fz_matrix ctm, fd = inv.d * 65536; /* Calculate initial texture positions. Do a half step to start. */ - /* Also, convert from texture space to sample space (subtract 1/2) */ - u = (fa * x) + (fc * y) + inv.e * 65536 + ((fa+fc)>>1) - 32768; - v = (fb * x) + (fd * y) + inv.f * 65536 + ((fb+fd)>>1) - 32768; + u = (fa * x) + (fc * y) + inv.e * 65536 + ((fa+fc)>>1); + v = (fb * x) + (fd * y) + inv.f * 65536 + ((fb+fd)>>1); dp = dst->samples + ((y - dst->y) * dst->w + (x - dst->x)) * dst->n; n = dst->n; |