Tile generation did not work with TJXFORM_HFLIP, because the underlying transform code was using an in-place algorithm, which modified the source coefficients after the first tile was generated. Thus, create a new option which allows TurboJPEG to turn off the in-place horizontal flip if there are multiple transforms being performed from the same set of coefficients.
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@495 632fc199-4ca6-4c93-a231-07263d6284db
diff --git a/jpegtran.c b/jpegtran.c
index 73dbe53..f861464 100644
--- a/jpegtran.c
+++ b/jpegtran.c
@@ -142,6 +142,7 @@
transformoption.trim = FALSE;
transformoption.force_grayscale = FALSE;
transformoption.crop = FALSE;
+ transformoption.slow_hflip = FALSE;
cinfo->err->trace_level = 0;
/* Scan command line options, adjust parameters */