From 988849a8b4105c7ce749233a806726885a649540 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Sebastian=20Dr=C3=B6ge?= <sebastian.droege@collabora.co.uk>
Date: Fri, 1 Oct 2010 11:00:54 +0200
Subject: [PATCH] volume: Convert parts of the controlled processing to orc

---
 gst/volume/gstvolume.c      | 20 ++++++++++----------
 gst/volume/gstvolumeorc.orc | 14 ++++++++++++++
 2 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/gst/volume/gstvolume.c b/gst/volume/gstvolume.c
index 796210e..e18efaa 100644
--- a/gst/volume/gstvolume.c
+++ b/gst/volume/gstvolume.c
@@ -49,8 +49,14 @@
 #include <gst/controller/gstcontroller.h>
 #include <gst/audio/audio.h>
 #include <gst/audio/gstaudiofilter.h>
-#include "gstvolumeorc.h"
 
+#ifdef HAVE_ORC
+#include <orc/orcfunctions.h>
+#else
+#define orc_memset memset
+#endif
+
+#include "gstvolumeorc.h"
 #include "gstvolume.h"
 
 /* some defines for audio processing */
@@ -973,17 +979,11 @@ volume_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
       gst_object_unref (volume_csource);
       volume_csource = NULL;
     } else {
-      guint i;
-
-      for (i = 0; i < nsamples; i++)
-        self->volumes[i] = self->current_volume;
+      orc_memset_f64 (self->volumes, self->current_volume, nsamples);
     }
 
     if (mute_csource) {
-      guint i;
-
-      for (i = 0; i < nsamples; i++)
-        self->volumes[i] *= (1.0 - self->mutes[i]);
+      orc_prepare_volumes (self->volumes, self->mutes, nsamples);
     }
 
     self->process_controlled (self, data, self->volumes, channels, size);
@@ -994,7 +994,7 @@ volume_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
   }
 
   if (self->current_volume == 0.0 || self->current_mute) {
-    memset (data, 0, size);
+    orc_memset (data, 0, size);
     GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_GAP);
   } else if (self->current_volume != 1.0) {
     self->process (self, data, size);
diff --git a/gst/volume/gstvolumeorc.orc b/gst/volume/gstvolumeorc.orc
index c05a2fb..e405d83 100644
--- a/gst/volume/gstvolumeorc.orc
+++ b/gst/volume/gstvolumeorc.orc
@@ -53,4 +53,18 @@ mulsbw t1, d1, p1
 shrsw t1, t1, 5
 convssswb d1, t1
 
+.function orc_memset_f64
+.dest 8 d1 gdouble
+.floatparam 8 p1
+
+copyq d1, p1
+
+.function orc_prepare_volumes
+.dest 8 d1 gdouble
+.source 4 s1 gboolean
+.temp 8 t1
+
+convld t1, s1
+subd t1, 0x3FF0000000000000L, t1
+muld d1, d1, t1
 
-- 
2.7.4