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authorIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2015-03-31 15:20:49 +0000
committerIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2015-03-31 15:20:49 +0000
commit9f33055f32f054e2fdb0c799913ee42db297e620 (patch)
tree7ff5d1076574825f480ef0df5aa484a538dc49fa
parent406d3990bbc4e4d46794d32270512bfdf7d45e06 (diff)
if no args are supplied as act randomf()
svn path=/trunk/externals/iem/iemmatrix/; revision=17449
-rw-r--r--src/mtx_rand.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/src/mtx_rand.c b/src/mtx_rand.c
index a6b5f17..aad8c59 100644
--- a/src/mtx_rand.c
+++ b/src/mtx_rand.c
@@ -26,13 +26,17 @@ static int makeseed(void)
random_nextseed = random_nextseed * 435898247 + 938284287;
return (random_nextseed & 0x7fffffff);
}
+static inline t_float getrand(int *val)
+{
+ t_float f=(((t_float)(((*val=*val*435898247+382842987)&0x7fffffff)-0x40000000))*(t_float)(0.5/0x40000000)+0.5);
+ return f;
+
+}
static void mtx_rand_random(t_matrix *x)
{
long size = x->row * x->col;
t_atom *ap=x->atombuffer+2;
- int val = x->current_row;
- while(size--)SETFLOAT(ap+size, ((float)(((val=val*435898247+382842987)&0x7fffffff)-0x40000000))*(float)(0.5/0x40000000)+0.5);
- x->current_row=val;
+ while(size--)SETFLOAT(ap+size, getrand(&x->current_row));
}
static void mtx_rand_list(t_matrix *x, t_symbol *s, int argc, t_atom *argv)
@@ -55,8 +59,12 @@ static void mtx_rand_matrix(t_matrix *x, t_symbol *s, int argc, t_atom *argv)
}
static void mtx_rand_bang(t_matrix *x)
{
- mtx_rand_random(x);
- matrix_bang(x);
+ if(0==x->col || 0==x->row) {
+ outlet_float(x->x_obj.ob_outlet, getrand(&x->current_row));
+ } else {
+ mtx_rand_random(x);
+ matrix_bang(x);
+ }
}
static void *mtx_rand_new(t_symbol *s, int argc, t_atom *argv)
{