colors

extract colors from pictures
git clone git://git.2f30.org/colors.git
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commit 237ea2d686b03726093197df4f644832da2ae695
parent 396458273bdc266b6dbdfeba7c8803a451526ac3
Author: sin <sin@2f30.org>
Date:   Thu Jun  4 14:57:54 +0100

Add a flag to control printing of empty clusters

Diffstat:
colors.c | 16+++++++++++-----
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git a/colors.c b/colors.c @@ -27,6 +27,7 @@ struct cluster *clusters; size_t nclusters = 4; TAILQ_HEAD(points, point) points; size_t npoints; +int eflag; void * emalloc(size_t n) @@ -174,10 +175,11 @@ printcolors(void) int i; for (i = 0; i < nclusters; i++) - printf("#%02x%02x%02x\n", - clusters[i].c.x, - clusters[i].c.y, - clusters[i].c.z); + if (clusters[i].nmembers || eflag) + printf("#%02x%02x%02x\n", + clusters[i].c.x, + clusters[i].c.y, + clusters[i].c.z); } void @@ -244,8 +246,9 @@ initpoints(char *f) void usage(void) { - fprintf(stderr, "usage: %s [-n clusters] png-file\n", argv0); + fprintf(stderr, "usage: %s [-n clusters] [-e] png-file\n", argv0); fprintf(stderr, " -n\tset number of clusters, defaults to 4\n"); + fprintf(stderr, " -e\tinclude empty clusters\n"); exit(1); } @@ -255,6 +258,9 @@ main(int argc, char *argv[]) char *e; ARGBEGIN { + case 'e': + eflag = 1; + break; case 'n': errno = 0; nclusters = strtol(EARGF(usage()), &e, 10);