Sequencer display overlay option, this can show a border area from another time to help compare for color grading.

- Okey sets the border in the display.
- Okey resets the frame offset in the sequencer timeline.
- ghost icon in the header can enable/disable.
- frame offset can be relative or absolute (lock icon)

Not very happy that this commit adds a call to BKE_animsys_evaluate_animdata(scene, ...) in do_build_seq_array_recursively()
without this the offset frames dont have fcurves applied.
Though we will need something like this for prefetch frames to work too.

1 files changed, 8 insertions, 0 deletions

diff --git a/source/blender/makesdna/DNA_sequence_types.h b/source/blender/makesdna/DNA_sequence_types.h
index f5ca32c6b32..3ab7cb73d56 100644
--- a/source/blender/makesdna/DNA_sequence_types.h
+++ b/source/blender/makesdna/DNA_sequence_types.h
@@ -196,6 +196,10 @@ typedef struct Editing {
 	Sequence *act_seq;
 	char act_imagedir[256];
 	char act_sounddir[256];
+
+	int over_ofs, over_cfra;
+	int over_flag, pad;
+	rctf over_border;
 } Editing;
 
 /* ************* Effect Variable Structs ********* */
@@ -242,6 +246,10 @@ typedef struct SpeedControlVars {
 	int lastValidFrame;
 } SpeedControlVars;
 
+/* Editor->over_flag */
+#define SEQ_EDIT_OVERLAY_SHOW			1
+#define SEQ_EDIT_OVERLAY_ABS			2
+
 #define SEQ_STRIP_OFSBOTTOM		0.2f
 #define SEQ_STRIP_OFSTOP		0.8f