From 75ede0dd6bda0136aef612b0e427ae25b208d0d0 Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Thu, 30 Dec 2010 15:45:48 +0000
Subject: change Session::convert_to_frames_at() to
 Session::convert_to_frames() to reflect the fact that its argument is a
 position, not a duration; add Session::any_duration_to_frames(), which
 converts AnyTime representing a duration to frames; alter callers to use the
 right one of the two previously mentioned methods

git-svn-id: svn://localhost/ardour2/branches/3.0@8386 d708f5d6-7413-0410-9779-e7cbd77b26cf
---
 libs/ardour/session_time.cc | 55 ++++++++++++++++++++++++++++++++++++---------
 1 file changed, 45 insertions(+), 10 deletions(-)

(limited to 'libs/ardour/session_time.cc')

diff --git a/libs/ardour/session_time.cc b/libs/ardour/session_time.cc
index 7bd0ad1164..d9c612fbee 100644
--- a/libs/ardour/session_time.cc
+++ b/libs/ardour/session_time.cc
@@ -547,21 +547,21 @@ Session::jack_timebase_callback (jack_transport_state_t /*state*/,
 }
 
 ARDOUR::framecnt_t
-Session::convert_to_frames_at (framepos_t /*position*/, AnyTime const & any)
+Session::convert_to_frames (AnyTime const & position)
 {
 	double secs;
 
-	switch (any.type) {
+	switch (position.type) {
 	case AnyTime::BBT:
-		return _tempo_map->frame_time (any.bbt);
+		return _tempo_map->frame_time (position.bbt);
 		break;
 
 	case AnyTime::Timecode:
 		/* XXX need to handle negative values */
-		secs = any.timecode.hours * 60 * 60;
-		secs += any.timecode.minutes * 60;
-		secs += any.timecode.seconds;
-		secs += any.timecode.frames / timecode_frames_per_second();
+		secs = position.timecode.hours * 60 * 60;
+		secs += position.timecode.minutes * 60;
+		secs += position.timecode.seconds;
+		secs += position.timecode.frames / timecode_frames_per_second();
 		if (config.get_timecode_offset_negative()) {
 			return (framecnt_t) floor (secs * frame_rate()) - config.get_timecode_offset();
 		} else {
@@ -570,13 +570,48 @@ Session::convert_to_frames_at (framepos_t /*position*/, AnyTime const & any)
 		break;
 
 	case AnyTime::Seconds:
-		return (framecnt_t) floor (any.seconds * frame_rate());
+		return (framecnt_t) floor (position.seconds * frame_rate());
 		break;
 
 	case AnyTime::Frames:
-		return any.frames;
+		return position.frames;
 		break;
 	}
 
-	return any.frames;
+	return position.frames;
+}
+
+ARDOUR::framecnt_t
+Session::any_duration_to_frames (framepos_t position, AnyTime const & duration)
+{
+	double secs;
+
+	switch (duration.type) {
+	case AnyTime::BBT:
+		return (framecnt_t) ( _tempo_map->framepos_plus_bbt (position, duration.bbt) - position);
+		break;
+
+	case AnyTime::Timecode:
+		/* XXX need to handle negative values */
+		secs = duration.timecode.hours * 60 * 60;
+		secs += duration.timecode.minutes * 60;
+		secs += duration.timecode.seconds;
+		secs += duration.timecode.frames / timecode_frames_per_second();
+		if (config.get_timecode_offset_negative()) {
+			return (framecnt_t) floor (secs * frame_rate()) - config.get_timecode_offset();
+		} else {
+			return (framecnt_t) floor (secs * frame_rate()) + config.get_timecode_offset();
+		}
+		break;
+
+	case AnyTime::Seconds:
+                return (framecnt_t) floor (duration.seconds * frame_rate());
+		break;
+
+	case AnyTime::Frames:
+		return duration.frames;
+		break;
+	}
+
+	return duration.frames;
 }
-- 
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