Motion tracking dopesheet

Highlight background depending on number of tracks existing on frame.

This is not so much mathematically accurate displaying where things
shall be improved, but it's nice feedback about which frames better
be reviewed.

Bad frames are tracks < 8, highlighted with red.
OK-ish frame  are 8 <= tracks < 16, highlighted with yellow.

Could be some artifacts with color region start/end, this is a bit
unclear what exactly expected to be highlighted -- frames are
displayed as dots, but in fact they're quite noticeable segments.

---
svn merge -r54572:54573 ^/branches/soc-2011-tomato

1 files changed, 23 insertions, 1 deletions

diff --git a/source/blender/makesdna/DNA_tracking_types.h b/source/blender/makesdna/DNA_tracking_types.h
index b258fbaa668..8789a17a7f7 100644
--- a/source/blender/makesdna/DNA_tracking_types.h
+++ b/source/blender/makesdna/DNA_tracking_types.h
@@ -248,13 +248,28 @@ typedef struct MovieTrackingDopesheetChannel {
 	int max_segment, total_frames;  /* longest segment length and total number of tracked frames */
 } MovieTrackingDopesheetChannel;
 
+typedef struct MovieTrackingDopesheetCoverageSegment {
+	struct MovieTrackingDopesheetCoverageSegment *next, *prev;
+
+	int coverage;
+	int start_frame;
+	int end_frame;
+
+	int pad;
+} MovieTrackingDopesheetCoverageSegment;
+
 typedef struct MovieTrackingDopesheet {
 	int ok;                     /* flag if dopesheet information is still relevant */
 
 	short sort_method;          /* method to be used to sort tracks */
 	short flag;                 /* dopesheet building flag such as inverted order of sort */
 
-	/* runtime stuff */
+	/* ** runtime stuff ** */
+
+	/* summary */
+	ListBase coverage_segments;
+
+	/* detailed */
 	ListBase channels;
 	int tot_channel;
 
@@ -409,4 +424,11 @@ enum {
 	TRACKING_DOPE_SHOW_HIDDEN   = (1 << 2)
 };
 
+/* MovieTrackingDopesheetCoverageSegment->trackness */
+enum {
+	TRACKING_COVERAGE_BAD        = 0,
+	TRACKING_COVERAGE_ACCEPTABLE = 1,
+	TRACKING_COVERAGE_OK         = 2
+};
+
 #endif