Revision: 20799
          
http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=20799
Author:   aligorith
Date:     2009-06-11 04:14:56 +0200 (Thu, 11 Jun 2009)

Log Message:
-----------
NLA SoC: Evaluation bugfixes

* Strip scaling was being evaluated in the wrong way, resulting in scaled 
strips not being played too fast (for lengthened strips) or too slow (shortened 
strips)

* Also, verified that the 'reversed' option works correctly (no changes needed 
to be made here)

Modified Paths:
--------------
    branches/soc-2009-aligorith/source/blender/blenkernel/intern/anim_sys.c

Modified: 
branches/soc-2009-aligorith/source/blender/blenkernel/intern/anim_sys.c
===================================================================
--- branches/soc-2009-aligorith/source/blender/blenkernel/intern/anim_sys.c     
2009-06-11 00:46:42 UTC (rev 20798)
+++ branches/soc-2009-aligorith/source/blender/blenkernel/intern/anim_sys.c     
2009-06-11 02:14:56 UTC (rev 20799)
@@ -591,23 +591,23 @@
        float length, actlength, repeat, scale;
        
        /* get number of repeats */
-       if (strip->repeat == 0.0f) strip->repeat = 1.0f;
+       if (IS_EQ(strip->repeat, 0.0f)) strip->repeat = 1.0f;
        repeat = strip->repeat;
        
        /* scaling */
-       if (strip->scale == 0.0f) strip->scale= 1.0f;
+       if (IS_EQ(strip->scale, 0.0f)) strip->scale= 1.0f;
        scale = (float)fabs(strip->scale); /* scale must be positive - we've 
got a special flag for reversing */
        
        /* length of referenced action */
        actlength = strip->actend - strip->actstart;
-       if (actlength == 0.0f) actlength = 1.0f;
+       if (IS_EQ(actlength, 0.0f)) actlength = 1.0f;
        
        /* length of strip */
-       length = repeat * scale * actlength;
+       length = strip->end - strip->start;
+       if (IS_EQ(length, 0.0f)) length= actlength * scale * repeat;
        
        /* reversed = play strip backwards */
        if (strip->flag & NLASTRIP_FLAG_REVERSE) {
-               // FIXME: verify these 
                /* invert = convert action-strip time to global time */
                if (invert)
                        return length*(strip->actend - 
cframe)/(repeat*actlength) + strip->start;
@@ -651,7 +651,7 @@
 {
        /* firstly, analytically generate values for influence and time (if 
applicable) */
        if ((strip->flag & NLASTRIP_FLAG_USR_TIME) == 0)
-               strip->strip_time= nlastrip_get_frame(strip, ctime, 1); /* last 
arg '1' means current time to 'strip'/action time */
+               strip->strip_time= nlastrip_get_frame(strip, ctime, 0);
        if ((strip->flag & NLASTRIP_FLAG_USR_INFLUENCE) == 0)
                strip->influence= nlastrip_get_influence(strip, ctime);
        


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