diff options
| author | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2011-08-22 19:32:33 +0000 |
|---|---|---|
| committer | giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8> | 2011-08-22 19:32:33 +0000 |
| commit | eaefcd776d24134c5741bc908919988529ab74f7 (patch) | |
| tree | 75d98247695137166d7eec706971d0fdc1e8546d /lib/libppmcmap.c | |
| parent | f187d36ed6d15d8826323fd8ab884bdfb8cbcfd8 (diff) | |
| download | netpbm-mirror-eaefcd776d24134c5741bc908919988529ab74f7.tar.gz netpbm-mirror-eaefcd776d24134c5741bc908919988529ab74f7.tar.xz netpbm-mirror-eaefcd776d24134c5741bc908919988529ab74f7.zip | |
New ash function
git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@1553 9d0c8265-081b-0410-96cb-a4ca84ce46f8
Diffstat (limited to 'lib/libppmcmap.c')
| -rw-r--r-- | lib/libppmcmap.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/lib/libppmcmap.c b/lib/libppmcmap.c index 1fd87441..1f7e459d 100644 --- a/lib/libppmcmap.c +++ b/lib/libppmcmap.c @@ -20,10 +20,17 @@ #define HASH_SIZE 20023 -#define ppm_hashpixel(p) ( ( ( (long) PPM_GETR(p) * 33023 + \ - (long) PPM_GETG(p) * 30013 + \ - (long) PPM_GETB(p) * 27011 ) \ - & 0x7fffffff ) % HASH_SIZE ) + + +static __inline__ unsigned int +ppm_hashpixel(pixel const p) { + + return (unsigned int) (PPM_GETR(p) * 33 * 33 + + PPM_GETG(p) * 33 + + PPM_GETB(p)) % HASH_SIZE; +} + + colorhist_vector ppm_computecolorhist( pixel ** const pixels, |