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wrlib: Improved NETPBM support

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- re-add PPM to the list of supported format, because legacy apps may
expect to find it from the list;

- add the copyright notice related to the code that have been borrowed
from Netpbm;

- fixed a small error in PPM format check in the loading procedure;

- and a few minor code improvements

Signed-off-by: Christophe CURIS <christophe.curis@free.fr>
Signed-off-by: Carlos R. Mafra <crmafra@gmail.com>
This commit is contained in:
Christophe CURIS
2014-04-16 22:29:46 +02:00
committed by Carlos R. Mafra
parent 051a30f550
commit 34ca63c59f
2 changed files with 37 additions and 18 deletions
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8
wrlib/load.c
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@@ -73,13 +73,19 @@ static WRImgFormat identFile(const char *path);
char **RSupportedFileFormats(void)
{
static char *tmp[IM_TYPES + 1];
static char *tmp[IM_TYPES + 2];
int i = 0;
/* built-in */
tmp[i++] = "XPM";
/* built-in PNM here refers to anymap format: PPM, PGM, PBM */
tmp[i++] = "PNM";
/*
* PPM is a just a sub-type of PNM, but it has to be in the list
* for compatibility with legacy programs that may expect it but
* not the new PNM type
*/
tmp[i++] = "PPM";
#ifdef USE_TIFF
tmp[i++] = "TIFF";
#endif