177 lines
4 KiB
Text
177 lines
4 KiB
Text
$NetBSD: patch-ai,v 1.1 2002/06/27 15:52:19 agc Exp $
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--- obuffer.cc 2002/06/27 15:41:04 1.1
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+++ obuffer.cc 2002/06/27 15:41:40
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@@ -217,10 +217,10 @@
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int SparcObuffer::audio_fd = -1;
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#ifdef ULAW
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-SparcObuffer::SparcObuffer (Header *header, bool use_speaker, bool use_headphone, bool use_line_out)
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+SparcObuffer::SparcObuffer (Header *header, boolean use_speaker, boolean use_headphone, boolean use_line_out)
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#else
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SparcObuffer::SparcObuffer (uint32 number_of_channels, Header *header,
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- bool use_speaker, bool use_headphone, bool use_line_out)
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+ boolean use_speaker, boolean use_headphone, boolean use_line_out)
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#endif
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{
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#ifndef ULAW
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@@ -406,9 +406,9 @@
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#ifdef ULAW
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-bool SparcObuffer::class_suitable (uint32 number_of_channels, bool force_amd)
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+boolean SparcObuffer::class_suitable (uint32 number_of_channels, boolean force_amd)
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#else
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-bool SparcObuffer::class_suitable (void)
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+boolean SparcObuffer::class_suitable (void)
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#endif
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{
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#ifdef ULAW
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@@ -537,6 +537,7 @@
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}
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// turn NDELAY mode off:
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+#ifndef __FreeBSD__ /* Our /dev/audio doesn't like non-blocking I/O */
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int flags;
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if ((flags = fcntl (fd, F_GETFL, 0)) < 0)
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{
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@@ -549,6 +550,7 @@
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perror ("fcntl F_SETFL on /dev/audio failed");
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exit (1);
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}
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+#endif
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return fd;
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}
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@@ -629,7 +631,7 @@
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}
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-bool LinuxObuffer::class_suitable (uint32 number_of_channels)
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+boolean LinuxObuffer::class_suitable (uint32 number_of_channels)
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{
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// open the dsp audio device:
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audio_fd = open_audio_device ();
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@@ -637,3 +639,122 @@
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}
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#endif /* LINUX */
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+
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+#ifdef NETBSD
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+int NetBSDObuffer::audio_fd = -1;
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+
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+int NetBSDObuffer::open_audio_device (void)
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+{
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+ int fd;
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+
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+ if ((fd = open ("/dev/audio", O_WRONLY | O_NDELAY, 0)) < 0)
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+ if (errno == EBUSY)
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+ {
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+ cerr << "Sorry, the audio device is busy!\n";
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+ exit (1);
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+ }
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+ else
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+ {
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+ perror ("can't open /dev/audio for writing");
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+ exit (1);
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+ }
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+
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+ int flags;
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+ if ((flags = fcntl (fd, F_GETFL, 0)) < 0)
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+ {
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+ perror ("fcntl F_GETFL on /dev/audio failed");
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+ exit (1);
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+ }
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+ flags &= ~O_NDELAY;
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+ if (fcntl (fd, F_SETFL, flags) < 0)
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+ {
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+ perror ("fcntl F_SETFL on /dev/audio failed");
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+ exit (1);
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+ }
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+ return fd;
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+}
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+
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+
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+NetBSDObuffer::NetBSDObuffer (uint32 number_of_channels, Header *header)
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+{
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+#ifdef DEBUG
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+ if (!number_of_channels || number_of_channels > MAXCHANNELS)
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+ {
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+ cerr << "NetBSDObuffer: 0 < number of channels < " << MAXCHANNELS << "!\n";
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+ exit (1);
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+ }
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+#endif
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+ channels = number_of_channels;
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+ for (int i = 0; i < number_of_channels; ++i)
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+ bufferp[i] = buffer + i;
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+
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+ if (audio_fd < 0)
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+ {
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+ cerr << "Internal error, NetBSDObuffer::audio_fd has to be initialized\n"
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+ "by NetBSDObuffer::class_suitable()!\n";
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+ exit (1);
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+ }
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+
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+ audio_info info;
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+ AUDIO_INITINFO(&info);
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+
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+ // configure the device:
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+ info.play.encoding = AUDIO_ENCODING_SLINEAR;
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+ info.play.precision = 16;
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+ info.play.channels = channels;
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+ info.play.sample_rate = header->frequency ();
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+
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+ if (ioctl (audio_fd, AUDIO_SETINFO, &info))
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+ {
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+ perror ("configuration of /dev/audio failed");
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+ exit (1);
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+ }
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+}
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+
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+
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+NetBSDObuffer::~NetBSDObuffer (void)
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+{
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+ close (audio_fd);
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+}
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+
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+
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+void NetBSDObuffer::append (uint32 channel, int16 value)
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+{
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+#ifdef DEBUG
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+ if (channel >= channels)
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+ {
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+ cerr << "illegal channelnumber in NetBSDObuffer::append()!\n";
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+ exit (1);
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+ }
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+ if (bufferp[channel] - buffer >= OBUFFERSIZE)
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+ {
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+ cerr << "buffer overflow!\n";
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+ exit (1);
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+ }
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+#endif
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+ *bufferp[channel] = value;
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+ bufferp[channel] += channels;
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+}
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+
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+
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+void NetBSDObuffer::write_buffer (int)
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+{
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+ int length = (int)((char *)bufferp[0] - (char *)buffer);
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+ if (write (audio_fd, buffer, length) != length)
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+ {
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+ perror ("write to /dev/audio failed");
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+ exit (1);
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+ }
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+ for (int i = 0; i < channels; ++i)
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+ bufferp[i] = buffer + i;
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+}
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+
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+
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+boolean NetBSDObuffer::class_suitable (uint32 number_of_channels)
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+{
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+ // open the dsp audio device:
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+ audio_fd = open_audio_device ();
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+ return True;
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+}
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+
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+#endif /* NETBSD */
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