Fixed crash in pupmenu for image icons

* Scaled down image can be smaller than icon - bad memory access
* Also needed to copy float buffer for exr images
* rectcpy only copied first row

There probably is some unnessary copying, will check with a little more time.
For now better be safe since it's no huge amount of mem that is copied.

1 files changed, 8 insertions, 1 deletions

diff --git a/source/blender/imbuf/intern/rectop.c b/source/blender/imbuf/intern/rectop.c
index 4ddd7ca4814..c764d06b500 100644
--- a/source/blender/imbuf/intern/rectop.c
+++ b/source/blender/imbuf/intern/rectop.c
@@ -113,7 +113,14 @@ void IMB_rectcpy(struct ImBuf *dbuf, struct ImBuf *sbuf, int destx,
 	for (;height > 0; height--){
 
 		memcpy(drect,srect, width * sizeof(int));
-		if (do_float) memcpy(drectf,srectf, width * sizeof(float) * 4);
+		drect += destx;
+		srect += srcx;
+
+		if (do_float) {
+			memcpy(drectf,srectf, width * sizeof(float) * 4);
+			drectf += destx;
+			srectf += srcx;
+		}		
 	}
 }