diff options
| -rw-r--r-- | doc/HISTORY | 4 | ||||
| -rw-r--r-- | editor/pnmremap.c | 20 |
2 files changed, 24 insertions, 0 deletions
diff --git a/doc/HISTORY b/doc/HISTORY index 704e0593..80395f45 100644 --- a/doc/HISTORY +++ b/doc/HISTORY @@ -21,6 +21,10 @@ not yet BJH Release 10.63.00 since at least 10.26 (May 2001), but after 10.18 (September 2003). Thanks Ludolf Holzheid (lholzheid@bihl-wiedemann.de). + pnmremap (ergo pnmquant): fix bug: incorrect output with + -norandom and floyd-steinberg dithering. Always broken. + (-norandom was introduced in 10.30 (June 2007)). + pamtilt: fix bug: incorrect output or invalid memory access crash. Always broken (program was new in Neptbm 10.30 (October 2005)). diff --git a/editor/pnmremap.c b/editor/pnmremap.c index dcd4e2a5..ec381f32 100644 --- a/editor/pnmremap.c +++ b/editor/pnmremap.c @@ -378,6 +378,24 @@ randomizeError(long ** const err, static void +zeroError(long ** const err, + unsigned int const width, + unsigned int const depth) { +/*---------------------------------------------------------------------------- + Set all errors to zero in the error array err[][]. +-----------------------------------------------------------------------------*/ + unsigned int col; + + for (col = 0; col < width; ++col) { + unsigned int plane; + for (plane = 0; plane < depth; ++plane) + err[plane][col] = 0; + } +} + + + +static void fserrSetForward(struct fserr * const fserrP) { fserrP->fsForward = TRUE; @@ -434,6 +452,8 @@ initFserr(struct pam * const pamP, if (initRandom) randomizeError(fserrP->thiserr, fserrSize, pamP->depth); + else + zeroError(fserrP->thiserr, fserrSize, pamP->depth); fserrSetForward(fserrP); } |