output/*: move to output/plugins/

src/output/plugins/SolarisOutputPlugin.cxx

@@ -0,0 +1,201 @@
+/*
+ * Copyright (C) 2003-2014 The Music Player Daemon Project
+ * http://www.musicpd.org
+ *
+ * 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "config.h"
+#include "SolarisOutputPlugin.hxx"
+#include "../OutputAPI.hxx"
+#include "system/fd_util.h"
+#include "util/Error.hxx"
+
+#include <sys/stropts.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#ifdef __sun
+#include <sys/audio.h>
+#else
+
+/* some fake declarations that allow build this plugin on systems
+   other than Solaris, just to see if it compiles */
+
+#define AUDIO_GETINFO 0
+#define AUDIO_SETINFO 0
+#define AUDIO_ENCODING_LINEAR 0
+
+struct audio_info {
+	struct {
+		unsigned sample_rate, channels, precision, encoding;
+	} play;
+};
+
+#endif
+
+struct SolarisOutput {
+	struct audio_output base;
+
+	/* configuration */
+	const char *device;
+
+	int fd;
+
+	bool Initialize(const config_param &param, Error &error_r) {
+		return ao_base_init(&base, &solaris_output_plugin, param,
+				    error_r);
+	}
+
+	void Deinitialize() {
+		ao_base_finish(&base);
+	}
+};
+
+static bool
+solaris_output_test_default_device(void)
+{
+	struct stat st;
+
+	return stat("/dev/audio", &st) == 0 && S_ISCHR(st.st_mode) &&
+		access("/dev/audio", W_OK) == 0;
+}
+
+static struct audio_output *
+solaris_output_init(const config_param &param, Error &error_r)
+{
+	SolarisOutput *so = new SolarisOutput();
+	if (!so->Initialize(param, error_r)) {
+		delete so;
+		return nullptr;
+	}
+
+	so->device = param.GetBlockValue("device", "/dev/audio");
+
+	return &so->base;
+}
+
+static void
+solaris_output_finish(struct audio_output *ao)
+{
+	SolarisOutput *so = (SolarisOutput *)ao;
+
+	so->Deinitialize();
+	delete so;
+}
+
+static bool
+solaris_output_open(struct audio_output *ao, AudioFormat &audio_format,
+		    Error &error)
+{
+	SolarisOutput *so = (SolarisOutput *)ao;
+	struct audio_info info;
+	int ret, flags;
+
+	/* support only 16 bit mono/stereo for now; nothing else has
+	   been tested */
+	audio_format.format = SampleFormat::S16;
+
+	/* open the device in non-blocking mode */
+
+	so->fd = open_cloexec(so->device, O_WRONLY|O_NONBLOCK, 0);
+	if (so->fd < 0) {
+		error.FormatErrno("Failed to open %s",
+				  so->device);
+		return false;
+	}
+
+	/* restore blocking mode */
+
+	flags = fcntl(so->fd, F_GETFL);
+	if (flags > 0 && (flags & O_NONBLOCK) != 0)
+		fcntl(so->fd, F_SETFL, flags & ~O_NONBLOCK);
+
+	/* configure the audio device */
+
+	ret = ioctl(so->fd, AUDIO_GETINFO, &info);
+	if (ret < 0) {
+		error.SetErrno("AUDIO_GETINFO failed");
+		close(so->fd);
+		return false;
+	}
+
+	info.play.sample_rate = audio_format.sample_rate;
+	info.play.channels = audio_format.channels;
+	info.play.precision = 16;
+	info.play.encoding = AUDIO_ENCODING_LINEAR;
+
+	ret = ioctl(so->fd, AUDIO_SETINFO, &info);
+	if (ret < 0) {
+		error.SetErrno("AUDIO_SETINFO failed");
+		close(so->fd);
+		return false;
+	}
+
+	return true;
+}
+
+static void
+solaris_output_close(struct audio_output *ao)
+{
+	SolarisOutput *so = (SolarisOutput *)ao;
+
+	close(so->fd);
+}
+
+static size_t
+solaris_output_play(struct audio_output *ao, const void *chunk, size_t size,
+		    Error &error)
+{
+	SolarisOutput *so = (SolarisOutput *)ao;
+	ssize_t nbytes;
+
+	nbytes = write(so->fd, chunk, size);
+	if (nbytes <= 0) {
+		error.SetErrno("Write failed");
+		return 0;
+	}
+
+	return nbytes;
+}
+
+static void
+solaris_output_cancel(struct audio_output *ao)
+{
+	SolarisOutput *so = (SolarisOutput *)ao;
+
+	ioctl(so->fd, I_FLUSH);
+}
+
+const struct audio_output_plugin solaris_output_plugin = {
+	"solaris",
+	solaris_output_test_default_device,
+	solaris_output_init,
+	solaris_output_finish,
+	nullptr,
+	nullptr,
+	solaris_output_open,
+	solaris_output_close,
+	nullptr,
+	nullptr,
+	solaris_output_play,
+	nullptr,
+	solaris_output_cancel,
+	nullptr,
+	nullptr,
+};