cheng/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fixed calculated image pitch being off-by-one in some cases.

Browse Source 
The variable linebytes sometimes counted one extra byte, which is OK for allocating but not when accessing the image later on. Calculate the value in a slightly different way and made the variable const.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@68941 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Dimitri Schoolwerth 2011-08-28 21:38:22 +00:00
parent 28b31a2ad2
commit 649df4bff8
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/common/imagtiff.cpp
View File

@ -640,7 +640,9 @@ bool wxTIFFHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbo
TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, photometric);
TIFFSetField(tif, TIFFTAG_COMPRESSION, compression);
// scanlinesize if determined by spp and bps
// scanlinesize is determined by spp and bps
const tsize_t linebytes =
(tsize_t)((image->GetWidth() * spp * bps + 7) / 8);
tsize_t linebytes = (tsize_t)image->GetWidth() * spp * bps / 8;
if ( (image->GetWidth() % 8 > 0) && (spp * bps < 8) )