diff options
| author | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2014-08-14 12:32:32 +0000 |
|---|---|---|
| committer | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2014-08-14 12:32:32 +0000 |
| commit | 0ed8701c73d609aeb2c3a604c29f57e2f1874327 (patch) | |
| tree | 20b1883a64e2d328aa478333cdaef9c00793b69f | |
| parent | bf39c2f62b38b7f440461c1e5ebb664ff2617a62 (diff) | |
bug fix (by S. Hirata)
git-svn-id: svn://tug.org/texlive/trunk@34932 c570f23f-e606-0410-a88d-b1316a301751
| -rw-r--r-- | Build/source/texk/dvipdfm-x/pdfobj.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/Build/source/texk/dvipdfm-x/pdfobj.c b/Build/source/texk/dvipdfm-x/pdfobj.c index cfd4a4e68bd..8f44bd5cd5d 100644 --- a/Build/source/texk/dvipdfm-x/pdfobj.c +++ b/Build/source/texk/dvipdfm-x/pdfobj.c @@ -1941,19 +1941,18 @@ filter_decoded (pdf_obj *dst, const void *src, long srclen, while (p + length < endptr) { /* Same as PNG Sub */ for (i = 0; i < length; i++) { - int pv = i - bytes_per_pixel >= 0 ? prev[i - bytes_per_pixel] : 0; + int pv = i - bytes_per_pixel >= 0 ? buf[i - bytes_per_pixel] : 0; buf[i] = (unsigned char)(((int) p[i] + pv) & 0xff); } pdf_add_stream(dst, buf, length); - memcpy(prev, buf, length); p += length; } } else if (parms->bits_per_component == 16) { while (p + length < endptr) { for (i = 0; i < length; i += 2) { int b = i - bytes_per_pixel; - char hi = b >= 0 ? prev[b] : 0; - char lo = b >= 0 ? prev[b + 1] : 0; + char hi = b >= 0 ? buf[b] : 0; + char lo = b >= 0 ? buf[b + 1] : 0; long pv = (hi << 8) | lo; long cv = (p[i] << 8) | p[i + 1]; long c = pv + cv; @@ -1961,7 +1960,6 @@ filter_decoded (pdf_obj *dst, const void *src, long srclen, buf[i + 1] = (unsigned char) (c & 0xff); } pdf_add_stream(dst, buf, length); - memcpy(prev, buf, length); p += length; } } else { /* bits per component 1, 2, 4 */ @@ -1999,7 +1997,7 @@ filter_decoded (pdf_obj *dst, const void *src, long srclen, break; case 1: for (i = 0; i < length; i++) { - int pv = i - bytes_per_pixel >= 0 ? prev[i - bytes_per_pixel] : 0; + int pv = i - bytes_per_pixel >= 0 ? buf[i - bytes_per_pixel] : 0; buf[i] = (unsigned char)(((int) p[i] + pv) & 0xff); } break; |