imageio_jpeg.c, around line 200: also extract alpha along with red,green,blue. if alpha=0, set pixptrs to 255 instead of *r,*g,*b.
-- thomas On Thu, Dec 27, 2012 at 11:36 AM, Daniele Debernardi <[email protected]>wrote: > Hi, > I tried with your suggestion to use a mixed image format but with > unsuccessful results. > For my case I just need to force that black background color to white, is > there anyplace in > mapcache code where I can change it? > > Any suggestion on which part of the code I have to look would be enough. > > Thanks, > Daniele > > > On 19. 12. 12 12:47, thomas bonfort wrote: > > Daniele, > The background color isn't configurable, although that could become a > configurable option with a bit of funding. Your other option might be to > use a "mixed" image format, which will use JPEG compression for complete > tiles, and png with a transparent background for tiles that are > half-in/half-out. > > regards, > thomas > > > On Wed, Dec 19, 2012 at 12:26 PM, Daniele Debernardi <[email protected]>wrote: > >> Hi, >> there is a possibility to change the background color of the area outside >> of the extent of the cache >> when the tile is merged toghether? >> >> example: >> when i request a tile with an extent that is half outsite the map extent >> and half inside, mapcache generates >> a tile with the half outsite of the map with black background and i would >> like to change it to white. >> >> Thanks in advance >> >> >> _______________________________________________ >> mapserver-users mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/mapserver-users >> >> > >
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