From 65331f17497d132c03ad48be90322d24c20d6415 Mon Sep 17 00:00:00 2001
From: Nils Wallménius <nils@rockbox.org>
Date: Thu, 15 Nov 2007 21:20:29 +0000
Subject: Revert some changes that broke looping in midiplayer

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15631 a1c6a512-1295-4272-9138-f99709370657
---
 apps/plugins/midi/midiutil.h  |  2 +-
 apps/plugins/midi/sequencer.c |  1 +
 apps/plugins/midi/synth.c     | 40 ++++++++++++++++++++++------------------
 3 files changed, 24 insertions(+), 19 deletions(-)

diff --git a/apps/plugins/midi/midiutil.h b/apps/plugins/midi/midiutil.h
index f26f1208e3..18d493b23a 100644
--- a/apps/plugins/midi/midiutil.h
+++ b/apps/plugins/midi/midiutil.h
@@ -109,7 +109,7 @@ struct SynthObject
     int delta;
     int decay;
     unsigned int cp; /* unsigned int */
-    int state;
+    int state, loopState;
     int note, vol, ch;
     int curRate, curOffset, targetOffset;
     int curPoint;
diff --git a/apps/plugins/midi/sequencer.c b/apps/plugins/midi/sequencer.c
index 7847c375ba..bd2f33b365 100644
--- a/apps/plugins/midi/sequencer.c
+++ b/apps/plugins/midi/sequencer.c
@@ -227,6 +227,7 @@ inline void pressNote(int ch, int note, int vol)
 
     setVolScale(a);
 
+    voices[a].loopState=STATE_NONLOOPING;
     /*
      * OKAY. Gt = Gus Table value
      * rf = Root Frequency of wave
diff --git a/apps/plugins/midi/synth.c b/apps/plugins/midi/synth.c
index b2efce1f7d..f9af4876fd 100644
--- a/apps/plugins/midi/synth.c
+++ b/apps/plugins/midi/synth.c
@@ -316,29 +316,33 @@ static inline void synthVoice(struct SynthObject * so, int32_t * out, unsigned i
 
         s2 = getSample((cp_temp >> FRACTSIZE)+1, wf);
 
-        if(mode_mask28 && cp_temp >= end_loop)
+        if(mode_mask28)
         {
-            if(!mode_mask24)
+            /* LOOP_REVERSE|LOOP_PINGPONG  = 24  */
+            if(mode_mask24 && so->loopState == STATE_LOOPING && (cp_temp < start_loop))
             {
-                cp_temp -= diff_loop;
-                s2=getSample((cp_temp >> FRACTSIZE), wf);
+                if(mode_mask_looprev)
+                {
+                    cp_temp += diff_loop;
+                    s2=getSample((cp_temp >> FRACTSIZE), wf);
+                }
+                else
+                {
+                    so->delta = -so->delta; /* At this point cp_temp is wrong. We need to take a step */
+                }
             }
-            else
-            {
-                so->delta = -so->delta;
 
-                /* LOOP_REVERSE|LOOP_PINGPONG  = 24  */
-                if(cp_temp < start_loop) /* this appears to never be true in here */
+            if(cp_temp >= end_loop)
+            {
+                so->loopState = STATE_LOOPING;
+                if(!mode_mask24)
                 {
-                    if(mode_mask_looprev)
-                    {
-                        cp_temp += diff_loop;
-                        s2=getSample((cp_temp >> FRACTSIZE), wf);
-                    }
-                    else
-                    {
-                        so->delta = -so->delta; /* At this point cp_temp is wrong. We need to take a step */
-                    }
+                    cp_temp -= diff_loop;
+                    s2=getSample((cp_temp >> FRACTSIZE), wf);
+                }
+                else
+                {
+                    so->delta = -so->delta;
                 }
             }
         }
-- 
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