Collect the 16-bit signed range sample clipping routines scattered about, which can be optimized on armv6 and create firmware/export/dsp-util.h (for lack of better place right now).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31142 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 1 insertions, 8 deletions

diff --git a/apps/pcmbuf.c b/apps/pcmbuf.c
index 8135a30a36..32e1157132 100644
--- a/apps/pcmbuf.c
+++ b/apps/pcmbuf.c
@@ -27,6 +27,7 @@
 #include "pcm.h"
 #include "pcm_mixer.h"
 #include "pcmbuf.h"
+#include "dsp-util.h"
 #include "playback.h"
 #include "codec_thread.h"
 
@@ -828,14 +829,6 @@ static size_t crossfade_find_buftail(size_t buffer_rem, size_t buffer_need)
     return buffer_rem;
 }
 
-/* Clip sample to signed 16 bit range */
-static FORCE_INLINE int32_t clip_sample_16(int32_t sample)
-{
-    if ((int16_t)sample != sample)
-        sample = 0x7fff ^ (sample >> 31);
-    return sample;
-}
-
 /* Returns the number of bytes _NOT_ mixed/faded */
 static int crossfade_mix_fade(int factor, size_t size, void *buf, size_t *out_index,
                               unsigned long elapsed, off_t offset)