Add OSS output support

1 files changed, 56 insertions, 0 deletions

diff --git a/drumgizmo/output/oss.h b/drumgizmo/output/oss.h
new file mode 100644
index 0000000..d44cd1c
--- /dev/null
+++ b/drumgizmo/output/oss.h
@@ -0,0 +1,56 @@
+/* -*- Mode: c++ -*- */
+/***************************************************************************
+ *            oss.h
+ *
+ *  Tue Apr 11 19:42:45 CET 2017
+ *  Copyright 2017 Goran Mekić
+ *  meka@tilda.center
+ ****************************************************************************/
+
+/*
+ *  This file is part of DrumGizmo.
+ *
+ *  DrumGizmo is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  DrumGizmo 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 Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with DrumGizmo; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#pragma once
+#include "audiooutputengine.h"
+
+class OSSOutputEngine
+	: public AudioOutputEngine
+{
+public:
+	OSSOutputEngine();
+	~OSSOutputEngine() {};
+
+	// based on AudioOutputEngine
+	bool init(const Channels& chan) override;
+	void setParm(const std::string& parm, const std::string& value) override;
+	bool start() override { return true; };
+	void stop() override {};
+	void pre(size_t nsamples) override { data.resize(nsamples * num_channels); };
+	void run(int ch, sample_t* samples, size_t nsamples) override;
+	void post(size_t nsamples) override;
+	bool isFreewheeling() const override { return false; };
+	std::size_t getBufferSize() const override;
+	std::size_t getSamplerate() const override;
+
+private:
+	std::string dev;
+	int fd;
+	std::size_t num_channels;
+	unsigned int srate;
+	unsigned int format;
+	std::vector<std::int32_t> data;
+};