== Sequencer ==

This fixes [#6996] Sequence Nesting and enables sequence nesting for the
first time :)

The old hack done by Ton prevented eternal loops by preventing Sequence
tracks being added to Sequence scenes.

We now disable "Do sequence" temporarily for the _current_ scene, which
has the same effect but leaves the possibility of sequence nesting 
untouched.

Also fixes a warning in editseq (uninitialized variable).

2 files changed, 7 insertions, 4 deletions

diff --git a/source/blender/src/editseq.c b/source/blender/src/editseq.c
index bbcef28cd2d..67fd86e5e9c 100644
--- a/source/blender/src/editseq.c
+++ b/source/blender/src/editseq.c
@@ -203,7 +203,7 @@ int sequence_is_free_transformable(Sequence * seq)
 
 Sequence *find_neighboring_sequence(Sequence *test, int lr) {
 /* looks to the left on lr==1, to the right on lr==2 */
-	Sequence *seq,*foundneighbor;
+	Sequence *seq,*foundneighbor = 0;
 	int found=0;
 	Editing *ed;
 
diff --git a/source/blender/src/sequence.c b/source/blender/src/sequence.c
index db901930893..aad0ebf5c5f 100644
--- a/source/blender/src/sequence.c
+++ b/source/blender/src/sequence.c
@@ -832,8 +832,8 @@ static void do_build_seq_ibuf(Sequence * seq, int cfra)
 			re= RE_NewRender(sce->id.name);
 			
 			/* prevent eternal loop */
-			doseq= sce->r.scemode & R_DOSEQ;
-			sce->r.scemode &= ~R_DOSEQ;
+			doseq= G.scene->r.scemode & R_DOSEQ;
+			G.scene->r.scemode &= ~R_DOSEQ;
 			
 			BIF_init_render_callbacks(re, 0);	/* 0= no display callbacks */
 			
@@ -856,12 +856,15 @@ static void do_build_seq_ibuf(Sequence * seq, int cfra)
 					addzbuffloatImBuf(se->ibuf);
 					memcpy(se->ibuf->zbuf_float, rres.rectz, sizeof(float)*rres.rectx*rres.recty);
 				}
+			} else if (rres.rect32) {
+				se->ibuf= IMB_allocImBuf(rres.rectx, rres.recty, 32, IB_rect, 0);
+				memcpy(se->ibuf->rect, rres.rect32, 4*rres.rectx*rres.recty);
 			}
 			
 			BIF_end_render_callbacks();
 			
 			/* restore */
-			sce->r.scemode |= doseq;
+			G.scene->r.scemode |= doseq;
 			
 			if((G.f & G_PLAYANIM)==0) /* bad, is set on do_render_seq */
 				waitcursor(0);