Changeset 5181:ca57e34b2a35 in roaraudio for libroardsp/filter_amp.c

Timestamp:

10/22/11 16:17:35 (13 years ago)

Author:

phi

Branch:

default

Phase:

public

Message:

updated filters to support 8 and 32 bit as well as 16 bit

File:

• libroardsp/filter_amp.c (modified) (1 diff)

libroardsp/filter_amp.c

@@ -47 +47 @@
 }
 
-int roardsp_amp_calc8  (struct roardsp_filter * filter, void * data, size_t samples) {
- struct roardsp_amp * self = (struct roardsp_amp *) filter->inst;
- int8_t * samp = (int8_t *) data;
- register int_least32_t s;
- size_t i;
-
- for (i = 0; i < samples; i++) {
-  s        = samp[i];
-  s       *= self->mul;
-  s       /= self->div;
-  samp[i]  = s;
- };
-
- return 0;
+#define _calcX(bits,twobits) \
+int roardsp_amp_calc##bits  (struct roardsp_filter * filter, void * data, size_t samples) { \
+ struct roardsp_amp * self = (struct roardsp_amp *) filter->inst; \
+ int##bits##_t * samp = (int##bits##_t *) data; \
+ register int##twobits##_t s; \
+ size_t i; \
+\
+ for (i = 0; i < samples; i++) { \
+  s        = samp[i]; \
+  s       *= self->mul; \
+  s       /= self->div; \
+  samp[i]  = s; \
+ }; \
+\
+ return 0; \
 }
 
-int roardsp_amp_calc16  (struct roardsp_filter * filter, void * data, size_t samples) {
- struct roardsp_amp * self = (struct roardsp_amp *) filter->inst;
- int16_t * samp = (int16_t *) data;
- register int_least32_t s;
- size_t i;
-
- for (i = 0; i < samples; i++) {
-  s        = samp[i];
-  s       *= self->mul;
-  s       /= self->div;
-//  ROAR_DBG("roardsp_amp_calc16(*): samp[i=%u] = %i, s=%i, self->mul=%i, self->div=%i", i, samp[i], s, self->mul, self->div);
-  samp[i]  = s;
- };
-
- return 0;
-}
+_calcX(8,16)
+_calcX(16,32)
+_calcX(32,64)
 
 int roardsp_amp_ctl   (struct roardsp_filter * filter, int cmd, void * data) {