[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [19846] trunk/blender/source/blender/imbuf /intern/openexr/openexr_api.cpp: Bugfix #18519

[Ton Roosendaal]

Revision: 19846
          http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=19846
Author:   ton
Date:     2009-04-21 15:30:58 +0200 (Tue, 21 Apr 2009)

Log Message:
-----------
Bugfix #18519

MultiLayer save (F3) crashes when no rendering/layers exist, happens for
opengl preview render. It now survives, saving empty file and prints error.

Better solution for later: render profiles!

Modified Paths:
--------------
    trunk/blender/source/blender/imbuf/intern/openexr/openexr_api.cpp

Modified: trunk/blender/source/blender/imbuf/intern/openexr/openexr_api.cpp
===================================================================
--- trunk/blender/source/blender/imbuf/intern/openexr/openexr_api.cpp	2009-04-21 13:30:12 UTC (rev 19845)
+++ trunk/blender/source/blender/imbuf/intern/openexr/openexr_api.cpp	2009-04-21 13:30:58 UTC (rev 19846)
@@ -570,13 +570,17 @@
 	FrameBuffer frameBuffer;
 	ExrChannel *echan;
 	
-	for(echan= (ExrChannel *)data->channels.first; echan; echan= echan->next)
-		frameBuffer.insert (echan->name, Slice (FLOAT,  (char *)echan->rect, 
-												echan->xstride*sizeof(float), echan->ystride*sizeof(float)));
-	
-	data->ofile->setFrameBuffer (frameBuffer);
-	data->ofile->writePixels (data->height);	
-	
+	if(data->channels.first) {
+		for(echan= (ExrChannel *)data->channels.first; echan; echan= echan->next)
+			frameBuffer.insert (echan->name, Slice (FLOAT,  (char *)echan->rect, 
+													echan->xstride*sizeof(float), echan->ystride*sizeof(float)));
+		
+		data->ofile->setFrameBuffer (frameBuffer);
+		data->ofile->writePixels (data->height);	
+	}
+	else {
+		printf("Error: attempt to save MultiLayer without layers.\n");
+	}
 }
 
 void IMB_exr_read_channels(void *handle)