diff -crN xgs/arch/hpux/snd-drv.c xgs-0.51/arch/hpux/snd-drv.c *** xgs/arch/hpux/snd-drv.c Wed Dec 31 18:00:00 1969 --- xgs-0.51/arch/hpux/snd-drv.c Tue Aug 26 16:03:05 1997 *************** *** 0 **** --- 1,161 ---- + /********************************************************************* + * * + * XGS : Apple IIGS Emulator * + * * + * Written and Copyright (C)1996 by Joshua M. Thompson * + * * + * You are free to distribute this code for non-commercial purposes * + * I ask only that you notify me of any changes you make to the code * + * Commercial use is prohibited without my written permission * + * * + *********************************************************************/ + /********************************************************************* + * * + * HPPA Sound Emulation * + * * + * Written and Copyright (C)1997 by Kees Cook, c-cook@uiuc.edu * + * Thanks to Michael Hipp for HPUX code examples * + * Copy Policy: GPL V2.0 * + * * + *********************************************************************/ + + /* + * File: arch/hppa/snd-drv.c + * + * The HPUX raw /dev/audio sound output driver. + */ + + #include "xgs.h" + + #include + #include + #include + #ifdef HAVE_UNISTD_H + #include + #endif + #ifdef HAVE_FCNTL_H + #include + #endif + + #include + #include "sound.h" + #include "snd-drv.h" + + /* Where should the sound go to? "AUDIO_TO_*" are #define'd in snd-drv.h */ + #ifdef AUDIO_TO_LINEOUT + #define AUDIO_TO AUDIO_OUT_LINEOUT + #elif AUDIO_TO_SPEAKER + #define AUDIO_TO AUDIO_OUT_SPEAKER + #elif AUDIO_TO_HEADPHONE + #define AUDIO_TO AUDIO_OUT_HEADPHONE + #else + #define AUDIO_TO -1 + #endif + + /* Hard code what stereo is to HPUX */ + #define AUDIO_STEREO 2 + + /* for the /dev/audio file */ + static int audiofd; + /* for holding the converted audio streams */ + static unsigned char snd_out_buffer[OUTPUT_BUFFER_SIZE*4]; + + /* any errors during audio init should do these four things ... */ + int SND_ERROR(char * msg) { + perror(msg); + if (audiofd) close(audiofd); + audiofd = -1; + return 0; + } + + int SND_outputInit(int rate) + { + struct audio_describe ades; + struct audio_gain again; + int gain,i,audio; + long closest=0; + + audiofd = open("/dev/audio",O_RDWR); + + if(audiofd < 0) + return 0; + + /* get info from the device */ + if (ioctl(audiofd,AUDIO_DESCRIBE,&ades)<0) + return SND_ERROR("hppa sound AUDIO_DESCRIBE"); + + /* get the current gains */ + again.channel_mask = AUDIO_CHANNEL_0 | AUDIO_CHANNEL_1; + if (ioctl(audiofd,AUDIO_GET_GAINS,&again)<0) + return SND_ERROR("hppa sound AUDIO_GET_GAINS"); + + /* set to half maximum gain */ + /* leave volume unchanged */ + again.cgain[0].transmit_gain = ades.max_transmit_gain / 2; + again.cgain[1].transmit_gain = ades.max_transmit_gain / 2; + again.channel_mask = AUDIO_CHANNEL_0 | AUDIO_CHANNEL_1; + if (ioctl(audiofd,AUDIO_SET_GAINS,&again)<0) + return SND_ERROR("hppa sound AUDIO_SET_GAINS"); + + /* if there is a desired destination, set it */ + if(AUDIO_TO != -1) + { + if (ioctl(audiofd,AUDIO_SET_OUTPUT,AUDIO_TO)<0) + return SND_ERROR("hppa sound AUDIO_SET_OUTPUT"); + } + + /* find the closest sampling rate available */ + for(i=0;i= labs(ades.sample_rate[i] - rate)) + closest = ades.sample_rate[i]; + if(rate == ades.sample_rate[i]) + break; + } + if(i == ades.nrates) + { + fprintf(stderr,"hppa sound: sample-rate %ld not available.\nusing closest available rate: %ld.\n",rate,closest); + /*rate=closest;*/ + } + + /* set the format to signed 16 bit */ + if (ioctl(audiofd,AUDIO_SET_DATA_FORMAT,AUDIO_FORMAT_LINEAR16BIT)<0) + return SND_ERROR("hppa sound AUDIO_SET_DATA_FORMAT: AUDIO_FORMAT_LINEAR16BIT"); + + /* might need to set the channels twice ?? */ + for (i=0;i<2;i++) + if (ioctl(audiofd,AUDIO_SET_CHANNELS,AUDIO_STEREO)<0) + return SND_ERROR("hppa sound AUDIO_SET_CHANNELS: AUDIO_STEREO"); + + /* set the sampling rate */ + if (ioctl(audiofd,AUDIO_SET_SAMPLE_RATE,closest)<0) + return SND_ERROR("hppa sound AUDIO_SET_SAMPLE_RATE"); + + /* inform API what the actual rate is now */ + return closest; + } + + + size_t SND_outputWrite(snd_sample_struct *buffer, size_t len) + { + int i; + unsigned char * ptr=snd_out_buffer; + + /* did we initialize? if not, we can't play sound */ + if (audiofd==-1) return 0; + + for (i = 0 ; i < len ; i++) { + /* convert the ENDIAN-ness of the sound for the HP */ + *(ptr++) = (unsigned char)((buffer[i].left >> 10) & 0xff); + *(ptr++) = (unsigned char)((buffer[i].left >> 2) & 0x3f); + *(ptr++) = (unsigned char)((buffer[i].right >> 10) & 0xff); + *(ptr++) = (unsigned char)((buffer[i].right >> 2) & 0x3f); + } + write(audiofd,(unsigned char *)snd_out_buffer, len*2); + return len; + } + + void SND_outputShutdown(void) + { + if (audiofd) close (audiofd); + } diff -crN xgs/arch/hpux/snd-drv.h xgs-0.51/arch/hpux/snd-drv.h *** xgs/arch/hpux/snd-drv.h Wed Dec 31 18:00:00 1969 --- xgs-0.51/arch/hpux/snd-drv.h Tue Aug 26 16:02:07 1997 *************** *** 0 **** --- 1,16 ---- + /* Header file for HPUX sound driver + Kees Cook, c-cook@uiuc.edu + */ + #ifndef _SND_DRV_H_ + #define _SND_DRV_H_ + + /* where should the sound go? */ + #undef AUDIO_TO_LINEOUT + #undef AUDIO_TO_SPEAKER + #define AUDIO_TO_HEADPHONE + + int SND_outputInit(int); + void SND_outputShutdown(void); + size_t SND_outputWrite(snd_sample_struct *, size_t); + + #endif diff -crN xgs/configure xgs-0.51/configure *** xgs/configure Wed Aug 13 00:50:03 1997 --- xgs-0.51/configure Tue Aug 26 16:11:13 1997 *************** *** 14,19 **** --- 14,21 ---- ac_help="$ac_help --with-oss-sound enable support for Open Sound System sound output" ac_help="$ac_help + --with-hpux-sound enable support for raw HPUX sound output" + ac_help="$ac_help --with-sparc-sound enable support for Sun /dev/audio sound output" ac_help="$ac_help --with-mit-shm enable MIT Shared Memory extension support" *************** *** 534,539 **** --- 536,550 ---- fi + # Check whether --with-hpux-sound or --without-hpux-sound was given. + if test "${with_hpux_sound+set}" = set; then + withval="$with_hpux_sound" + cat >> confdefs.h <<\EOF + #define HPUX_SOUND 1 + EOF + + fi + # Check whether --with-sparc-sound or --without-sparc-sound was given. if test "${with_sparc_sound+set}" = set; then withval="$with_sparc_sound" *************** *** 2390,2399 **** --- 2401,2414 ---- if test "${with_oss_sound+set}" = set; then ln -s ${srcdir}/arch/oss/snd-drv.c ${srcdir}/arch/oss/snd-drv.h . else + if test "${with_hpux_sound+set}" = set; then + ln -s ${srcdir}/arch/hpux/snd-drv.c ${srcdir}/arch/hpux/snd-drv.h . + else if test "${with_sparc_sound+set}" = set; then ln -s ${srcdir}/arch/sparc/snd-drv.c ${srcdir}/arch/oss/snd-drv.h . else ln -s ${srcdir}/arch/generic/snd-drv.c ${srcdir}/arch/generic/snd-drv.h . + fi fi fi diff -crN xgs/configure.in xgs-0.51/configure.in *** xgs/configure.in Wed Aug 13 00:50:03 1997 --- xgs-0.51/configure.in Tue Aug 26 16:23:08 1997 *************** *** 5,10 **** --- 5,11 ---- dnl Check for optional features AC_ARG_WITH(oss-sound,[ --with-oss-sound enable support for Open Sound System sound output], AC_DEFINE(OSS_SOUND)) + AC_ARG_WITH(hpux-sound,[ --with-hpux-sound enable support for raw HPUX sound output], AC_DEFINE(HPUX_SOUND)) AC_ARG_WITH(sparc-sound,[ --with-sparc-sound enable support for Sun /dev/audio sound output], AC_DEFINE(OSS_SOUND)) AC_ARG_WITH(mit-shm, [ --with-mit-shm enable MIT Shared Memory extension support], AC_DEFINE(MITSHM)) AC_ARG_WITH(debug, [ --with-debug enable debugging support], AC_DEFINE(DEBUG)) *************** *** 47,56 **** --- 48,61 ---- if test "${with_oss_sound+set}" = set; then ln -s ${srcdir}/arch/oss/snd-drv.c ${srcdir}/arch/oss/snd-drv.h . else + if test "${with_hpux_sound+set}" = set; then + ln -s ${srcdir}/arch/hpux/snd-drv.c ${srcdir}/arch/hpux/snd-drv.h . + else if test "${with_sparc_sound+set}" = set; then ln -s ${srcdir}/arch/sparc/snd-drv.c ${srcdir}/arch/oss/snd-drv.h . else ln -s ${srcdir}/arch/generic/snd-drv.c ${srcdir}/arch/generic/snd-drv.h . + fi fi fi