add destructive outlines, more action usage and state fixups in GUI

git-svn-id: svn://localhost/trunk/ardour2@247 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 155 insertions, 0 deletions

diff --git a/libs/ardour/destructive_filesource.cc b/libs/ardour/destructive_filesource.cc
new file mode 100644
index 0000000000..f0813f61dc
--- /dev/null
+++ b/libs/ardour/destructive_filesource.cc
@@ -0,0 +1,155 @@
+/*
+    Copyright (C) 2006 Paul Davis 
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id$
+*/
+
+/* This is is very hacky way to get pread and pwrite declarations.
+   First, include <features.h> so that we can avoid its #undef __USE_UNIX98.
+   Then define __USE_UNIX98, include <unistd.h>, and then undef it
+   again. If #define _XOPEN_SOURCE actually worked, I'd use that, but
+   despite claims in the header that it does, it doesn't.
+
+   features.h isn't available on osx and it compiles fine without it.
+*/
+
+#ifdef HAVE_FEATURES_H
+#include <features.h>
+#endif
+
+#if __GNUC__ >= 3
+// #define _XOPEN_SOURCE 500
+#include <unistd.h>
+#else
+#define __USE_UNIX98
+#include <unistd.h>
+#undef  __USE_UNIX98
+#endif
+
+// darwin supports 64 by default and doesn't provide wrapper functions.
+#if defined (__APPLE__)
+typedef off_t off64_t;
+#define open64 open
+#define close64 close
+#define lseek64 lseek
+#define pread64 pread
+#define pwrite64 pwrite
+#endif
+
+#include <errno.h>
+
+#include <pbd/error.h>
+#include <ardour/destructive_filesource.h>
+
+#include "i18n.h"
+
+using namespace std;
+using namespace ARDOUR;
+
+DestructiveFileSource::DestructiveFileSource (string path, jack_nframes_t rate, bool repair_first)
+	: FileSource (path, rate, repair_first)
+{
+	_capture_start = false;
+	_capture_end = false;
+}
+
+DestructiveFileSource::DestructiveFileSource (const XMLNode& node, jack_nframes_t rate)
+	: FileSource (node, rate)
+{
+	_capture_start = false;
+	_capture_end = false;
+}
+
+DestructiveFileSource::~DestructiveFileSource()
+{
+}
+
+int
+DestructiveFileSource::seek (jack_nframes_t frame)
+{
+	return 0;
+}
+
+void
+DestructiveFileSource::mark_capture_start ()
+{
+	_capture_start = true;
+}
+
+void
+DestructiveFileSource::mark_capture_end()
+{
+	_capture_end = true;
+}
+
+void
+DestructiveFileSource::clear_capture_marks ()
+{
+	_capture_start = false;
+	_capture_end = false;
+}	
+
+jack_nframes_t
+DestructiveFileSource::write (Sample* data, jack_nframes_t cnt)
+{
+	{
+		LockMonitor lm (_lock, __LINE__, __FILE__);
+		
+		int32_t byte_cnt = cnt * sizeof (Sample);
+		int32_t byte_pos = data_offset + (_length * sizeof (Sample));
+		jack_nframes_t oldlen;
+
+		if (::pwrite64 (fd, (char *) data, byte_cnt, byte_pos) != (off64_t) byte_cnt) {
+			error << string_compose(_("FileSource: \"%1\" bad write (%2)"), _path, strerror (errno)) << endmsg;
+			return 0;
+		}
+
+		oldlen = _length;
+		_length += cnt;
+		_write_data_count = byte_cnt;
+
+		if (_build_peakfiles) {
+			PeakBuildRecord *pbr = 0;
+			
+			if (pending_peak_builds.size()) {
+				pbr = pending_peak_builds.back();
+			}
+			
+			if (pbr && pbr->frame + pbr->cnt == oldlen) {
+				
+				/* the last PBR extended to the start of the current write,
+				   so just extend it again.
+				*/
+
+				pbr->cnt += cnt;
+			} else {
+				pending_peak_builds.push_back (new PeakBuildRecord (oldlen, cnt));
+			}
+			
+			_peaks_built = false;
+		}
+
+	}
+
+
+	if (_build_peakfiles) {
+		queue_for_peaks (*this);
+	}
+
+	return cnt;
+}
+