Revision: 56342
http://sourceforge.net/p/brlcad/code/56342
Author: mohitdaga
Date: 2013-07-30 16:52:31 +0000 (Tue, 30 Jul 2013)
Log Message:
-----------
Add icv_fade() function. This is an implementation from pixfade utility.
Modified Paths:
--------------
brlcad/trunk/include/icv.h
brlcad/trunk/src/libicv/filter.c
Modified: brlcad/trunk/include/icv.h
===================================================================
--- brlcad/trunk/include/icv.h 2013-07-30 16:48:51 UTC (rev 56341)
+++ brlcad/trunk/include/icv.h 2013-07-30 16:52:31 UTC (rev 56342)
@@ -360,8 +360,10 @@
icv_image_t* curr_img,
icv_image_t* new_img,
ICV_FILTER filter_type);
+
+
+ICV_EXPORT extern int icv_fade(icv_image_t* img, double fraction);
-
/** @} */
/* end image utilities */
Modified: brlcad/trunk/src/libicv/filter.c
===================================================================
--- brlcad/trunk/src/libicv/filter.c 2013-07-30 16:48:51 UTC (rev 56341)
+++ brlcad/trunk/src/libicv/filter.c 2013-07-30 16:52:31 UTC (rev 56342)
@@ -275,3 +275,24 @@
}
return 0;
}
+
+int icv_fade(icv_image_t* img, double fraction)
+{
+ size_t size;
+ double *data;
+
+ size= img->height*img->width*img->channels;
+
+ data = img->data;
+
+ if (fraction<0)
+ bu_exit(1,"Multiplier invalid. Image not Faded.");
+
+ for (;size>0; size--) {
+ *data = *data*fraction;
+ if(*data > 1)
+ *data= 1.0;
+ data++;
+ }
+ return 0;
+}
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