3 files changed, 35 insertions, 99 deletions

diff --git a/src/ui/inlines.h b/src/ui/inlines.h
index d8dbc966d..e2c48d019 100644
--- a/src/ui/inlines.h
+++ b/src/ui/inlines.h
@@ -47,49 +47,27 @@ calc_mono_freq(short dest[2][256], short src[2][512], int nch)
     }
 }
 
-static inline void stereo16_from_stereopcm8(register short *l,
-        register short *r,
-        register uchar *c,
-        long cnt)
+static inline void stereo16_from_multichannel(register short *l,
+                                              register short *r,
+                                              register short *s,
+                                              long cnt, int chan)
 {
-    while (cnt >= 4l)
+    while (cnt > 0)
     {
-        l[0] = c[0];
-        r[0] = c[1];
-        l[1] = c[2];
-        r[1] = c[3];
-        l[2] = c[4];
-        r[2] = c[5];
-        l[3] = c[6];
-        r[3] = c[7];
-        l += 4;
-        r += 4;
-        c += 8;
-        cnt -= 4l;
-    }
-
-    if (cnt > 0l)
-    {
-        l[0] = c[0];
-        r[0] = c[1];
-        if (cnt > 1l)
-        {
-            l[1] = c[2];
-            r[1] = c[3];
-            if (cnt > 2l)
-            {
-                l[2] = c[4];
-                r[2] = c[5];
-            }
-        }
+        l[0] = s[0];
+        r[0] = s[1];
+        s += chan;
+        l++;
+        r++;
+        cnt--;
     }
 }
 
 
 static inline void stereo16_from_stereopcm16(register short *l,
-        register short *r,
-        register short *s,
-        long cnt)
+                                             register short *r,
+                                             register short *s,
+                                             long cnt)
 {
     while (cnt >= 4l)
     {
@@ -124,40 +102,9 @@ static inline void stereo16_from_stereopcm16(register short *l,
     }
 }
 
-
-static inline void mono16_from_monopcm8(register short *l,
-                                        register uchar *c,
-                                        long cnt)
-{
-    while (cnt >= 4l)
-    {
-        l[0] = c[0];
-        l[1] = c[1];
-        l[2] = c[2];
-        l[3] = c[3];
-        l += 4;
-        c += 4;
-        cnt -= 4l;
-    }
-
-    if (cnt > 0l)
-    {
-        l[0] = c[0];
-        if (cnt > 1l)
-        {
-            l[1] = c[1];
-            if (cnt > 2l)
-            {
-                l[2] = c[2];
-            }
-        }
-    }
-}
-
-
 static inline void mono16_from_monopcm16(register short *l,
-        register short *s,
-        long cnt)
+                                         register short *s,
+                                         long cnt)
 {
     while (cnt >= 4l)
     {
diff --git a/src/ui/mainvisual.cpp b/src/ui/mainvisual.cpp
index ada7291df..185107e7a 100644
--- a/src/ui/mainvisual.cpp
+++ b/src/ui/mainvisual.cpp
@@ -52,7 +52,6 @@ MainVisual::MainVisual (QWidget *parent)
     m_nodes.clear();
     createMenu();
     readSettings();
-    m_buf_at = 0;
     m_instance = this;
 }
 
@@ -102,36 +101,28 @@ void MainVisual::add (unsigned char *data, qint64 size, int chan)
 {
     if (!m_timer->isActive () || !m_vis)
         return;
-    long len = size, cnt;
-    short *l = 0, *r = 0;
-
 
-    memcpy(m_buf + m_buf_at, data, qMin(qint64(2048 - m_buf_at), size));
-    m_buf_at += qMin(qint64(2048 - m_buf_at), size);
-    if(m_buf_at < 2048)
-        return;
-    len = m_buf_at;
-    len /= chan;
-    len /= 2;
-    if (len > 512)
-        len = 512;
-    cnt = len;
-
-    if (chan >= 2)
-    {
-        l = new short[len];
-        r = new short[len];
-        stereo16_from_stereopcm16 (l, r, (short *) m_buf, cnt);
-    }
-    else if (chan == 1)
+    short *l = 0, *r = 0;
+    qint64 samples = size/chan >> 1;
+    int frames = samples/512;
+    for (int i = 0; i < frames; ++i)
     {
-        l = new short[len];
-        mono16_from_monopcm16 (l, (short *) m_buf, cnt);
+        l = new short[512];
+        r = 0;
+        if (chan == 2)
+        {
+            r = new short[512];
+            stereo16_from_stereopcm16 (l, r, (short *) (data + i*4*512), 512);
+        }
+        else if (chan == 1)
+            mono16_from_monopcm16 (l, (short *) (data + i*2*512), 512);
+        else
+        {
+            r = new short[512];
+            stereo16_from_multichannel(l, r, (short *) (data + i*2*chan*512), 512, chan);
+        }
+        m_nodes.append (new VisualNode (l, r, 512));
     }
-    else
-        len = 0;
-     m_buf_at = 0;
-    m_nodes.append (new VisualNode (l, r, len));
 }
 
 void MainVisual::timeout()
diff --git a/src/ui/mainvisual.h b/src/ui/mainvisual.h
index 30fcd67ab..dbd3cd9c0 100644
--- a/src/ui/mainvisual.h
+++ b/src/ui/mainvisual.h
@@ -111,8 +111,6 @@ private:
     QActionGroup *m_analyzerTypeGroup;
     QAction *m_peaksAction;
     QAction *m_transparentAction;
-    unsigned char m_buf[2048];
-    int m_buf_at;
     int m_ratio;
 };