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oscmorph fixes

--- a/modules/oscmorph.c

+++ b/modules/oscmorph.c

@@ -4,7 +4,7 @@

 #include <math.h>

 #include "soundpipe.h"

-#define MAXLEN 0x1000000L

+#define MAXLEN    0x1000000L

 #define PHASEMASK 0x0FFFFFFL

 int sp_oscmorph_create(sp_oscmorph **p)

@@ -49,7 +49,7 @@

     /* set up constants */

-    tmp = MAXLEN / 2;

+    tmp = MAXLEN / ft[0]->size;

     osc->nlb = 0;

     while (tmp >>= 1) osc->nlb++;

@@ -57,7 +57,6 @@

     osc->mask = (1 << osc->nlb) - 1;

     osc->inlb = 1.0 / (1 << osc->nlb);

     osc->maxlens = 1.0 * MAXLEN / sp->sr;

-

     return SP_OK;

 }

@@ -95,20 +94,17 @@

         ft2 = osc->tbl[index + 1]->tbl;

     }

-    osc->inc = (int32_t)floor(cps * osc->maxlens);

+    osc->inc = (int32_t)lrintf(cps * osc->maxlens);

     fract = (phs & osc->mask) * osc->inlb;

     pos = phs >> osc->nlb;

-    v1 = (1 - wtfrac) *

-        *(ft1 + pos) +

-        wtfrac *

-        *(ft2 + pos);

+    v1 = (1 - wtfrac) * ft1[pos] + wtfrac * ft2[pos];

     v2 = (1 - wtfrac) *

-        *(ft1 + ((pos + 1) % ftp1->size))+

+        ft1[(pos + 1) % ftp1->size] +

         wtfrac *

-        *(ft2 + ((pos + 1) % ftp1->size));

+        ft2[(pos + 1) % ftp1->size];

     *out = (v1 + (v2 - v1) * fract) * amp;