Initial import of the ircii-pana-1.1-final source tree.

git-svn-id: svn://svn.code.sf.net/p/bitchx/code/tags/ircii-pana-1.1-final@1 13b04d17-f746-0410-82c6-800466cd88b0
2008-02-25 09:25:32 +00:00
commit 28febcfea9
1429 changed files with 250653 additions and 0 deletions
--- a/dll/amp/audioIO_Linux.c
+++ b/dll/amp/audioIO_Linux.c
@@ -0,0 +1,147 @@
+/* this file is a part of amp software, (C) tomislav uzelac 1996,1997
+
+	Origional code by: tomislav uzelac
+	Modified by:
+	* Dan Nelson - BSD mods.
+	* Andrew Richards - moved code from audio.c and added mixer support etc
+
+ */
+
+/* Support for Linux and BSD sound devices */
+
+#include "amp.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdio.h>
+#include "audioIO.h"
+
+#ifdef HAVE_MACHINE_SOUNDCARD_H
+#include <machine/soundcard.h>
+#elif defined(HAVE_LINUX_SOUNDCARD_H)
+#include <linux/soundcard.h>
+#elif defined(HAVE_SYS_SOUNDCARD_H)
+#include <sys/soundcard.h>
+#else
+#define NO_SOUNCARD_H
+#endif
+
+#ifndef NO_SOUNCARD_H
+/* optimal fragment size */
+
+int AUSIZ = 0;
+
+/* declare these static to effectively isolate the audio device */
+
+static int audio_fd;
+static int mixer_fd;
+static int volumeIoctl;
+
+/* audioOpen() */
+/* should open the audio device, perform any special initialization		 */
+/* Set the frequency, no of channels and volume. Volume is only set if */
+/* it is not -1 */
+
+void
+audioOpen(int frequency, int stereo, int volume)
+{
+	int supportedMixers, play_format=AFMT_S16_LE;
+
+	if ((audio_fd = open ("/dev/dsp", O_WRONLY, 0)) == -1)
+		die("Unable to open the audio device\n");
+
+	if (ioctl(audio_fd, SNDCTL_DSP_SETFMT,&play_format) < 0)
+		die("Unable to set required audio format\n");
+	if ((mixer_fd=open("/dev/mixer",O_RDWR)) == -1)
+		warn("Unable to open mixer device\n");
+
+	if (ioctl(mixer_fd, SOUND_MIXER_READ_DEVMASK, &supportedMixers) == -1) {
+		warn("Unable to get mixer info assuming master volume\n");
+		volumeIoctl=SOUND_MIXER_WRITE_VOLUME;
+	} else {
+		if ((supportedMixers & SOUND_MASK_PCM) != 0)
+			volumeIoctl=SOUND_MIXER_WRITE_PCM;
+		else
+			volumeIoctl=0;
+	}
+
+	/* Set 1 or 2 channels */
+	stereo=(stereo ? 1 : 0);
+
+	if (ioctl(audio_fd, SNDCTL_DSP_STEREO, &stereo) < 0)
+		die("Unable to set stereo/mono\n");
+
+	/* Set the output frequency */
+	if (ioctl(audio_fd, SNDCTL_DSP_SPEED, &frequency) < 0)
+		die("Unable to set frequency: %d\n",frequency);
+
+	if (volume != -1)
+		audioSetVolume(volume);
+
+	if (ioctl(audio_fd, SNDCTL_DSP_GETBLKSIZE, &AUSIZ) == -1)
+		die("Unable to get fragment size\n");
+}
+
+
+/* audioSetVolume - only code this if your system can change the volume while */
+/*									playing. sets the output volume 0-100 */
+
+void
+audioSetVolume(int volume)
+{
+
+	volume=(volume<<8)+volume;
+	if ((mixer_fd != -1) && (volumeIoctl!=0))
+		if (ioctl(mixer_fd, volumeIoctl, &volume) < 0)
+			warn("Unable to set sound volume\n");
+}
+
+
+/* audioFlush() */
+/* should flush the audio device */
+
+inline void
+audioFlush()
+{
+
+	if (ioctl(audio_fd, SNDCTL_DSP_RESET, 0) == -1)
+		die("Unable to reset audio device\n");
+}
+
+
+/* audioClose() */
+/* should close the audio device and perform any special shutdown */
+
+void
+audioClose()
+{
+	close(audio_fd);
+	if (mixer_fd != -1)
+		close(mixer_fd);
+}
+
+
+/* audioWrite */
+/* writes count bytes from buffer to the audio device */
+/* returns the number of bytes actually written */
+
+inline int
+audioWrite(char *buffer, int count)
+{
+	return(write(audio_fd,buffer,count));
+}
+
+
+/* Let buffer.c have the audio descriptor so it can select on it. This means	*/
+/* that the program is dependent on a file descriptor to work. Should really */
+/* move the select's etc (with inlines of course) in here so that this is the */
+/* ONLY file which has hardware dependent audio stuff in it										*/
+
+int
+getAudioFd()
+{
+	return(audio_fd);
+}
+#endif