From a9128a5109fad96eb9537ac2096d8f7328291dbd Mon Sep 17 00:00:00 2001
From: Ton Roosendaal <ton@blender.org>
Date: Sun, 12 Dec 2004 21:13:07 +0000
Subject: Bug fix, after irc report sk1p:

frame-sliding (LMB) in action, nla, sound and ipo window went into very
tight while loop, causing cpu to choke. Added nice idle.

Bug fix, found self while testing:
- relative.blend, editmode
- delete part, exit editmode
- enter editmode, undo twice, exit editmode -> crash

The trick to copy 'old' locations of vertices to keys isnt undo-resistant
yet. This fix at least doesnt crash, but copying doesnt work when undo-ing
back to previous editmode session (indices just differ from current mesh...)
---
 source/blender/src/editaction.c | 1 +
 source/blender/src/editmesh.c   | 2 +-
 source/blender/src/editnla.c    | 1 +
 source/blender/src/editsound.c  | 4 ++++
 source/blender/src/space.c      | 1 +
 5 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/source/blender/src/editaction.c b/source/blender/src/editaction.c
index 45f9b850595..bed71e1a398 100644
--- a/source/blender/src/editaction.c
+++ b/source/blender/src/editaction.c
@@ -2470,6 +2470,7 @@ void winqreadactionspace(ScrArea *sa, void *spacedata, BWinEvent *evt)
 						force_draw_plus(SPACE_IPO, 1);
 						force_draw_plus(SPACE_BUTS, 1);
 					}
+					else PIL_sleep_ms(30);
 					
 				} while(get_mbut() & mousebut);
 			}
diff --git a/source/blender/src/editmesh.c b/source/blender/src/editmesh.c
index ddc3be4addd..6a7372ae16a 100644
--- a/source/blender/src/editmesh.c
+++ b/source/blender/src/editmesh.c
@@ -1192,7 +1192,7 @@ void load_editMesh(void)
 			i = 0;
 			mvert = me->mvert;
 			while(eve) {
-				if (eve->keyindex >= 0) { // old vertex
+				if (eve->keyindex >= 0 && eve->keyindex < currkey->totelem) { // valid old vertex
 					if(currkey == actkey) {
 						if (actkey == me->key->refkey) {
 							VECCOPY(fp, mvert->co);
diff --git a/source/blender/src/editnla.c b/source/blender/src/editnla.c
index a61fac1bdb6..a979332e30e 100644
--- a/source/blender/src/editnla.c
+++ b/source/blender/src/editnla.c
@@ -312,6 +312,7 @@ void winqreadnlaspace(ScrArea *sa, void *spacedata, BWinEvent *evt)
 						force_draw_plus(SPACE_VIEW3D, 1);
 						force_draw_plus(SPACE_IPO, 1);
 					}
+					else PIL_sleep_ms(30);
 					
 				} while(get_mbut() & mousebut);
 			}
diff --git a/source/blender/src/editsound.c b/source/blender/src/editsound.c
index b47bf4c580e..fc2ff3c3fb4 100644
--- a/source/blender/src/editsound.c
+++ b/source/blender/src/editsound.c
@@ -85,6 +85,9 @@
 
 #include "SYS_System.h"
 
+#include "PIL_time.h"
+
+
 /* this might move to the external header */
 void* sound_get_libraryinterface(void);
 
@@ -145,6 +148,7 @@ void winqreadsoundspace(ScrArea *sa, void *spacedata, BWinEvent *evt)
 					update_for_newframe();
 					force_draw_plus(SPACE_VIEW3D, 1);
 				}
+				else PIL_sleep_ms(30);
 			
 			} while(get_mbut() & mousebut);
 			ssound->flag &= ~SND_CFRA_NUM;
diff --git a/source/blender/src/space.c b/source/blender/src/space.c
index c9a4573f27b..4cd187a3a85 100644
--- a/source/blender/src/space.c
+++ b/source/blender/src/space.c
@@ -1797,6 +1797,7 @@ static void winqreadipospace(ScrArea *sa, void *spacedata, BWinEvent *evt)
 						update_for_newframe();
 						force_draw_all(0); /* To make constraint sliders redraw */
 					}
+					else PIL_sleep_ms(30);
 				
 				} while(get_mbut() & mousebut);
 			}
-- 
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