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stuff

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This commit is contained in:
John Cupitt 2009-09-07 22:15:48 +00:00
parent 42dbc81827
commit f302d023db
1 changed files with 42 additions and 3 deletions
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45
libvips/arithmetic/im_stats.c
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@ -141,13 +141,13 @@ stats_stop( void *seq, void *a, void *b )
small = value;\ small = value;\
\ \
q += im->Bands; \ q += im->Bands; \
}\ } \
\ \
row[0] = small; \ row[0] = small; \
row[1] = big; \ row[1] = big; \
row[2] = sum; \ row[2] = sum; \
row[3] = sum2; \ row[3] = sum2; \
}\ } \
} }
/* Loop over region, adding to seq. /* Loop over region, adding to seq.
@ -164,7 +164,46 @@ stats_scan( void *in, int n, void *seq, void *a, void *b )
/* Now generate code for all types. /* Now generate code for all types.
*/ */
switch( im->BandFmt ) { switch( im->BandFmt ) {
case IM_BANDFMT_UCHAR: LOOP( unsigned char ); break; case IM_BANDFMT_UCHAR:
/*
LOOP( unsigned char ); break;
*/
for( z = 0; z < im->Bands; z++ ) {
PEL *q = (PEL *) in + z;
double *row = stats + z * 4;
PEL small, big;
double sum, sum2;
printf( "z = %d\n", z );
small = row[0];
big = row[1];
sum = row[2];
sum2 = row[3];
for( x = 0; x < n; x++ ) {
PEL value = *q;
printf( "value = %d\n", value );
sum += value;
sum2 += (double) value * (double) value;
if( value > big )
big = value;
else if( value < small )
small = value;
q += im->Bands;
}
row[0] = small;
row[1] = big;
row[2] = sum;
row[3] = sum2;
}
break;
case IM_BANDFMT_CHAR: LOOP( signed char ); break; case IM_BANDFMT_CHAR: LOOP( signed char ); break;
case IM_BANDFMT_USHORT: LOOP( unsigned short ); break; case IM_BANDFMT_USHORT: LOOP( unsigned short ); break;
case IM_BANDFMT_SHORT: LOOP( signed short ); break; case IM_BANDFMT_SHORT: LOOP( signed short ); break;