From defcd16931ab6b8003dec54e8a27b5125ba6d595 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Sat, 25 May 2024 16:45:57 +0200
Subject: [PATCH] T: limit import to stereo (and constrain import options)

Trax only has mono and stereo tracks (no surround panner).

In theory we could allow "sequence files", and "merge files",
channels > 2 are simply ignored. However it seems prudent
to hide those options, at least for the time being.
---
 gtk2_ardour/editor_audio_import.cc | 33 ++++++++++++++++++++++++++++++
 gtk2_ardour/sfdb_ui.cc             | 10 +++++++++
 2 files changed, 43 insertions(+)

diff --git a/gtk2_ardour/editor_audio_import.cc b/gtk2_ardour/editor_audio_import.cc
index e9f6fde871..6ab634e88f 100644
--- a/gtk2_ardour/editor_audio_import.cc
+++ b/gtk2_ardour/editor_audio_import.cc
@@ -611,6 +611,21 @@ Editor::import_sndfiles (vector<string>            paths,
 	import_status.track = track;
 	import_status.replace = replace;
 
+#ifdef LIVETRAX
+	if (disposition == ImportDistinctFiles) {
+		for (auto const & path : import_status.paths) {
+			SoundFileInfo finfo;
+			string error_msg;
+			if (AudioFileSource::get_soundfile_info (path, finfo, error_msg)) {
+				if (finfo.channels > 2) {
+					disposition = ImportDistinctChannels;
+					import_status.target_regions = -1;
+				}
+			}
+		}
+	}
+#endif
+
 	CursorContext::Handle cursor_ctx = CursorContext::create(*this, _cursors->wait);
 	gdk_flush ();
 
@@ -748,6 +763,13 @@ Editor::embed_sndfiles (vector<string>            paths,
 			}
 		}
 
+#ifdef LIVETRAX
+		if (finfo.channels > 2 && disposition == ImportDistinctFiles) {
+			disposition = ImportDistinctChannels;
+			target_regions = -1;
+		}
+#endif
+
 		for (int n = 0; n < finfo.channels; ++n) {
 
 			try {
@@ -806,6 +828,8 @@ Editor::add_sources (vector<string>            paths,
 	bool use_timestamp;
 	vector<string> track_names;
 
+	printf ("Editor::add_sources %ld %ld [%d %d] %d %d\n", paths.size(), sources.size(), disposition, mode, target_regions, target_tracks);
+
 	use_timestamp = (pos == timepos_t::max (pos.time_domain()));
 
 	// kludge (for MIDI we're abusing "channel" for "track" here)
@@ -955,6 +979,10 @@ Editor::add_sources (vector<string>            paths,
 		input_chan = 2;
 	}
 #endif
+#ifdef LIVETRAX
+	/* Trax allows at most 2 channels. This handles edge-cases (sequence files, merge files) */
+	input_chan = std::min<uint32_t> (input_chan, 2);
+#endif
 
 	if (Config->get_output_auto_connect() & AutoConnectMaster) {
 		output_chan = (_session->master_out() ? _session->master_out()->n_inputs().n_audio() : input_chan);
@@ -1051,6 +1079,11 @@ Editor::finish_bringing_in_material (std::shared_ptr<Region> region,
 	std::shared_ptr<AudioRegion> ar = std::dynamic_pointer_cast<AudioRegion>(region);
 	std::shared_ptr<MidiRegion> mr = std::dynamic_pointer_cast<MidiRegion>(region);
 
+#ifdef LIVETRAX
+	assert (in_chans < 3);
+	assert (out_chans < 3);
+#endif
+
 	switch (mode) {
 	case ImportAsRegion:
 		/* relax, its been done */
diff --git a/gtk2_ardour/sfdb_ui.cc b/gtk2_ardour/sfdb_ui.cc
index c9a9c8757c..978c378f89 100644
--- a/gtk2_ardour/sfdb_ui.cc
+++ b/gtk2_ardour/sfdb_ui.cc
@@ -1636,7 +1636,9 @@ SoundFileOmega::reset_options ()
 	}
 
 	action_strings.push_back (importmode2string (ImportAsTrack));
+#ifndef LIVETRAX
 	action_strings.push_back (importmode2string (ImportAsRegion));
+#endif
 
 	existing_choice = action_combo.get_active_text();
 
@@ -1676,6 +1678,7 @@ SoundFileOmega::reset_options ()
 			channel_strings.push_back (_("one track per channel"));
 		}
 
+#ifndef LIVETRAX
 		if (paths.size() > 1) {
 			/* tape tracks are a single region per track, so we cannot
 			   sequence multiple files.
@@ -1687,6 +1690,7 @@ SoundFileOmega::reset_options ()
 			}
 
 		}
+#endif
 
 	} else {
 		channel_strings.push_back (_("one region per file"));
@@ -1695,11 +1699,13 @@ SoundFileOmega::reset_options ()
 			channel_strings.push_back (_("one region per channel"));
 		}
 
+#ifndef LIVETRAX
 		if (paths.size() > 1) {
 			if (same_size) {
 				channel_strings.push_back (_("all files in one region"));
 			}
 		}
+#endif
 	}
 
 	resetting_ourselves = true;
@@ -2035,14 +2041,18 @@ SoundFileOmega::SoundFileOmega (string title, ARDOUR::Session* s,
 	str.clear ();
 	str.push_back (_("one track per file"));
 	str.push_back (_("one track per channel"));
+#ifndef LIVETRAX
 	str.push_back (_("sequence files"));
 	str.push_back (_("all files in one region"));
+#endif
 	set_popdown_strings (channel_combo, str);
 
 	str.clear ();
 	str.push_back (importmode2string (ImportAsTrack));
 	str.push_back (importmode2string (ImportToTrack));
+#ifndef LIVETRAX
 	str.push_back (importmode2string (ImportAsRegion));
+#endif
 	set_popdown_strings (action_combo, str);
 	action_combo.set_active_text (importmode2string(mode_hint));