From 9165079f5a296c4cfbcaadf72a8bbf0c5c7700d1 Mon Sep 17 00:00:00 2001 From: Sam Lantinga Date: Sun, 21 Sep 2003 18:13:48 +0000 Subject: [PATCH] Date: Sat, 13 Sep 2003 15:50:43 +0300 From: "Mike Gorchak" Subject: QNX fixes improved sound code for the QNX, added workarounds for known bugs, fixed photon detect code. Update .qpg file. --- README.QNX | 2 +- SDL.qpg.in | 55 ++- src/audio/nto/SDL_nto_audio.c | 812 ++++++++++++++++---------------- src/audio/nto/SDL_nto_audio.h | 53 ++- src/video/photon/SDL_ph_video.c | 22 +- 5 files changed, 505 insertions(+), 439 deletions(-) diff --git a/README.QNX b/README.QNX index 8997c0699..2ad9d7980 100644 --- a/README.QNX +++ b/README.QNX @@ -78,7 +78,7 @@ script you must manually delete the libtool.m4 stuff from the acinclu- de.m4 file (it comes after the ESD detection code up to the end of the file), because the libtool stuff in the acinclude.m4 file is very old and doesn't know anything about QNX. Just remove it, then run -"libtoolize --force --copy" and after that run autogen.sh. +"libtoolize --force --copy" and after that run the autogen.sh script. ====================================================================== Some building issues: diff --git a/SDL.qpg.in b/SDL.qpg.in index dc29b1207..19a279843 100644 --- a/SDL.qpg.in +++ b/SDL.qpg.in @@ -52,6 +52,7 @@ + Library SDL @@ -59,6 +60,7 @@ http://qnx.org.ru/repository 2.0 + SDL SDL @@ -74,11 +76,12 @@ slouken@libsdl.org - This is the Simple DirectMedia Layer, a generic API that provides low level access to audio, keyboard, mouse, and display framebuffer across multiple platforms. - This is the Simple DirectMedia Layer, a generic API that provides low level access to audio, keyboard, mouse, and display framebuffer across multiple platforms. This is the libraries, include files and other resources you can use to develop and run SDL applications. + This is the Simple DirectMedia Layer (SDL), a generic API that provides low level access to audio, keyboard, mouse, and display framebuffer across multiple platforms. + This is the Simple DirectMedia Layer (SDL), a generic API that provides low level access to audio, keyboard, mouse, and display framebuffer across multiple platforms. This is the libraries, include files and other resources you can use to develop and run SDL applications. http://www.libsdl.org + @VERSION@ High @@ -87,25 +90,53 @@ 1 - GNU General Public License + GNU Lesser General Public License + - Software Development/Libraries and Extensions/C Libraries + Software Development/Libraries and Extensions/C Libraries SDL, audio, graphics, demos, games, emulators, media, layer - - qnx6 - qnx6 - Photon - Developer - User + none + Photon + Developer + User repdata://LicenseUrl/COPYING + + + + + + + + + + + + + - + + + + + + + + + + + + + + + + + + - diff --git a/src/audio/nto/SDL_nto_audio.c b/src/audio/nto/SDL_nto_audio.c index 62d9ca684..425d13ec9 100644 --- a/src/audio/nto/SDL_nto_audio.c +++ b/src/audio/nto/SDL_nto_audio.c @@ -30,8 +30,9 @@ #include #include #include -#include #include +#include +#include #include "SDL_audio.h" #include "SDL_error.h" @@ -41,11 +42,12 @@ #include "SDL_nto_audio.h" /* The tag name used by NTO audio */ -#define DRIVER_NAME "nto" +#define DRIVER_NAME "qsa-nto" /* default channel communication parameters */ #define DEFAULT_CPARAMS_RATE 22050 #define DEFAULT_CPARAMS_VOICES 1 +/* FIXME: need to add in the near future flexible logic with frag_size and frags count */ #define DEFAULT_CPARAMS_FRAG_SIZE 4096 #define DEFAULT_CPARAMS_FRAGS_MIN 1 #define DEFAULT_CPARAMS_FRAGS_MAX 1 @@ -53,438 +55,456 @@ /* Open the audio device for playback, and don't block if busy */ #define OPEN_FLAGS SND_PCM_OPEN_PLAYBACK +#define QSA_NO_WORKAROUNDS 0x00000000 +#define QSA_MMAP_WORKAROUND 0x00000001 + +struct BuggyCards +{ + char* cardname; + unsigned long bugtype; +}; + +#define QSA_WA_CARDS 3 + +struct BuggyCards buggycards[QSA_WA_CARDS]= +{ + {"Sound Blaster Live!", QSA_MMAP_WORKAROUND}, + {"Vortex 8820", QSA_MMAP_WORKAROUND}, + {"Vortex 8830", QSA_MMAP_WORKAROUND}, +}; + /* Audio driver functions */ -static int NTO_OpenAudio(_THIS, SDL_AudioSpec *spec); +static void NTO_ThreadInit(_THIS); +static int NTO_OpenAudio(_THIS, SDL_AudioSpec* spec); static void NTO_WaitAudio(_THIS); static void NTO_PlayAudio(_THIS); -static Uint8 *NTO_GetAudioBuf(_THIS); +static Uint8* NTO_GetAudioBuf(_THIS); static void NTO_CloseAudio(_THIS); -static snd_pcm_channel_status_t cstatus; -static snd_pcm_channel_params_t cparams; -static snd_pcm_channel_setup_t csetup; +/* card names check to apply the workarounds */ +static int NTO_CheckBuggyCards(_THIS, unsigned long checkfor) +{ + char scardname[33]; + int it; + + if (snd_card_get_name(cardno, scardname, 32)<0) + { + return 0; + } + + for (it=0; itchannel = SND_PCM_CHANNEL_PLAYBACK; - cparams->mode = SND_PCM_MODE_BLOCK; - cparams->start_mode = SND_PCM_START_DATA; - cparams->stop_mode = SND_PCM_STOP_STOP; - cparams->format.format = SND_PCM_SFMT_S16_LE; - cparams->format.interleave = 1; - cparams->format.rate = DEFAULT_CPARAMS_RATE; - cparams->format.voices = DEFAULT_CPARAMS_VOICES; - cparams->buf.block.frag_size = DEFAULT_CPARAMS_FRAG_SIZE; - cparams->buf.block.frags_min = DEFAULT_CPARAMS_FRAGS_MIN; - cparams->buf.block.frags_max = DEFAULT_CPARAMS_FRAGS_MAX; + int status; + struct sched_param param; + + /* increasing default 10 priority to 25 to avoid jerky sound */ + status=SchedGet(0, 0, ¶m); + param.sched_priority=param.sched_curpriority+15; + status=SchedSet(0, 0, SCHED_NOCHANGE, ¶m); } -static int Audio_Available(void) +/* PCM transfer channel parameters initialize function */ +static void NTO_InitAudioParams(snd_pcm_channel_params_t* cpars) { - /* - See if we can open a nonblocking channel. - Return value '1' means we can. - Return value '0' means we cannot. - */ - - int available; - int rval; - snd_pcm_t *handle; - - available = 0; - handle = NULL; - - rval = snd_pcm_open_preferred(&handle, NULL, NULL, OPEN_FLAGS); - - if (rval >= 0){ - available = 1; - - if ((rval = snd_pcm_close(handle)) < 0){ - SDL_SetError("snd_pcm_close failed: %s\n",snd_strerror(rval)); - available = 0; - } - } - else{ - SDL_SetError("snd_pcm_open failed: %s\n", snd_strerror(rval)); - } - - #ifdef DEBUG_AUDIO - fprintf(stderr,"AudioAvailable rtns %d\n", available); - #endif - - return(available); + memset(cpars, 0, sizeof(snd_pcm_channel_params_t)); + + cpars->channel = SND_PCM_CHANNEL_PLAYBACK; + cpars->mode = SND_PCM_MODE_BLOCK; + cpars->start_mode = SND_PCM_START_DATA; + cpars->stop_mode = SND_PCM_STOP_STOP; + cpars->format.format = SND_PCM_SFMT_S16_LE; + cpars->format.interleave = 1; + cpars->format.rate = DEFAULT_CPARAMS_RATE; + cpars->format.voices = DEFAULT_CPARAMS_VOICES; + cpars->buf.block.frag_size = DEFAULT_CPARAMS_FRAG_SIZE; + cpars->buf.block.frags_min = DEFAULT_CPARAMS_FRAGS_MIN; + cpars->buf.block.frags_max = DEFAULT_CPARAMS_FRAGS_MAX; } -static void Audio_DeleteDevice(SDL_AudioDevice *device) +static int NTO_AudioAvailable(void) { - #ifdef DEBUG_AUDIO - fprintf(stderr,"Audio_DeleteDevice\n"); - #endif + /* See if we can open a nonblocking channel. + Return value '1' means we can. + Return value '0' means we cannot. */ + + int available; + int rval; + snd_pcm_t* handle; + + available = 0; + handle = NULL; + + rval = snd_pcm_open_preferred(&handle, NULL, NULL, OPEN_FLAGS); + + if (rval >= 0) + { + available = 1; + + if ((rval = snd_pcm_close(handle)) < 0) + { + SDL_SetError("NTO_AudioAvailable(): snd_pcm_close failed: %s\n", snd_strerror(rval)); + available = 0; + } + } + else + { + SDL_SetError("NTO_AudioAvailable(): there are no available audio devices.\n"); + } + + return (available); +} - free(device->hidden); - free(device); +static void NTO_DeleteAudioDevice(SDL_AudioDevice *device) +{ + if ((device)&&(device->hidden)) + { + free(device->hidden); + } + if (device) + { + free(device); + } } -static SDL_AudioDevice *Audio_CreateDevice(int devindex) +static SDL_AudioDevice* NTO_CreateAudioDevice(int devindex) { - SDL_AudioDevice *this; - #ifdef DEBUG_AUDIO - fprintf(stderr,"Audio_CreateDevice\n"); - #endif - /* Initialize all variables that we clean on shutdown */ - this = (SDL_AudioDevice *)malloc(sizeof(SDL_AudioDevice)); - if ( this ) { - memset(this, 0, (sizeof *this)); - this->hidden = (struct SDL_PrivateAudioData *) - malloc((sizeof *this->hidden)); + SDL_AudioDevice *this; + + /* Initialize all variables that we clean on shutdown */ + this = (SDL_AudioDevice *)malloc(sizeof(SDL_AudioDevice)); + if (this) + { + memset(this, 0, sizeof(SDL_AudioDevice)); + this->hidden = (struct SDL_PrivateAudioData *)malloc(sizeof(struct SDL_PrivateAudioData)); + } + if ((this == NULL) || (this->hidden == NULL)) + { + SDL_OutOfMemory(); + if (this) + { + free(this); } - if ( (this == NULL) || (this->hidden == NULL) ) { - SDL_OutOfMemory(); - if ( this ) { - free(this); - } - return(0); - } - memset(this->hidden, 0, (sizeof *this->hidden)); - audio_handle = NULL; - - /* Set the function pointers */ - this->OpenAudio = NTO_OpenAudio; - this->WaitAudio = NTO_WaitAudio; - this->PlayAudio = NTO_PlayAudio; - this->GetAudioBuf = NTO_GetAudioBuf; - this->CloseAudio = NTO_CloseAudio; - - this->free = Audio_DeleteDevice; - - return this; + return (0); + } + memset(this->hidden, 0, sizeof(struct SDL_PrivateAudioData)); + audio_handle = NULL; + + /* Set the function pointers */ + this->ThreadInit = NTO_ThreadInit; + this->OpenAudio = NTO_OpenAudio; + this->WaitAudio = NTO_WaitAudio; + this->PlayAudio = NTO_PlayAudio; + this->GetAudioBuf = NTO_GetAudioBuf; + this->CloseAudio = NTO_CloseAudio; + + this->free = NTO_DeleteAudioDevice; + + return this; } -AudioBootStrap QNXNTOAUDIO_bootstrap = { - DRIVER_NAME, "QNX6 NTO PCM audio", - Audio_Available, Audio_CreateDevice +AudioBootStrap QNXNTOAUDIO_bootstrap = +{ + DRIVER_NAME, "QNX6 QSA-NTO Audio", + NTO_AudioAvailable, + NTO_CreateAudioDevice }; /* This function waits until it is possible to write a full sound buffer */ static void NTO_WaitAudio(_THIS) { - fd_set wfds; - - FD_SET( audio_fd, &wfds ); - switch( select( audio_fd + 1, NULL, &wfds, NULL, NULL ) ) - { - case -1: - case 0: - /* Error */ - SDL_SetError("select() in NTO_WaitAudio failed: %s\n", strerror(errno)); - break; - default: - if(FD_ISSET(audio_fd, &wfds)) - return; - } + fd_set wfds; + int selectret; + + FD_ZERO(&wfds); + FD_SET(audio_fd, &wfds); + + do { + selectret=select(audio_fd + 1, NULL, &wfds, NULL, NULL); + switch (selectret) + { + case -1: + case 0: SDL_SetError("NTO_WaitAudio(): select() failed: %s\n", strerror(errno)); + return; + default: if (FD_ISSET(audio_fd, &wfds)) + { + return; + } + break; + } + } while(1); } static void NTO_PlayAudio(_THIS) { - int written, rval; - int towrite; - - #ifdef DEBUG_AUDIO - fprintf(stderr, "NTO_PlayAudio\n"); - #endif - - if( !this->enabled){ - return; - } - - towrite = pcm_len; - - /* Write the audio data, checking for EAGAIN (buffer full) and underrun */ - do { - written = snd_pcm_plugin_write(audio_handle, pcm_buf, towrite); - #ifdef DEBUG_AUDIO - fprintf(stderr, "NTO_PlayAudio: written = %d towrite = %d\n",written,towrite); - #endif - if (written != towrite){ - if ((errno == EAGAIN) || (errno == EWOULDBLOCK)){ - SDL_Delay(1); /* Let a little CPU time go by and try to write again */ - #ifdef DEBUG_AUDIO - fprintf(stderr, "errno == EAGAIN written %d\n", written); - #endif - towrite -= written; //we wrote some data - continue; - } - else if((errno == EINVAL) || (errno == EIO)){ - if(errno == EIO){ - #ifdef DEBUG_AUDIO - fprintf(stderr,"snd_pcm_plugin_write failed EIO: %s\n", snd_strerror(written)); - #endif - } - if(errno == EINVAL){ - #ifdef DEBUG_AUDIO - fprintf(stderr,"snd_pcm_plugin_write failed EINVAL: %s\n", snd_strerror(written)); - #endif - } - - memset(&cstatus, 0, sizeof(cstatus)); - if( (rval = snd_pcm_plugin_status(audio_handle, &cstatus)) < 0 ){ - #ifdef DEBUG_AUDIO - fprintf(stderr, "snd_pcm_plugin_status failed %s\n",snd_strerror(rval)); - #endif - SDL_SetError("snd_pcm_plugin_status failed: %s\n", snd_strerror(rval)); - return; - } - - if ( (cstatus.status == SND_PCM_STATUS_UNDERRUN) || (cstatus.status == SND_PCM_STATUS_READY) ){ - #ifdef DEBUG_AUDIO - fprintf(stderr, "buffer underrun\n"); - #endif - if ( (rval = snd_pcm_plugin_prepare (audio_handle,SND_PCM_CHANNEL_PLAYBACK)) < 0 ){ - #ifdef DEBUG_AUDIO - fprintf(stderr, "NTO_PlayAudio: prepare failed %s\n",snd_strerror(rval)); - #endif - SDL_SetError("snd_pcm_plugin_prepare failed: %s\n",snd_strerror(rval) ); - return; - } - } - continue; - } - else{ - #ifdef DEBUG_AUDIO - fprintf(stderr, "NTO_PlayAudio: snd_pcm_plugin_write failed unknown errno %d %s\n",errno, snd_strerror(rval)); - #endif - return; - } - - } - else - { - towrite -= written; //we wrote all remaining data - } - } while ( (towrite > 0) && (this->enabled) ); - - /* If we couldn't write, assume fatal error for now */ - if ( towrite != 0 ) { - this->enabled = 0; - } - return; + int written, rval; + int towrite; + void* pcmbuffer; + + if (!this->enabled) + { + return; + } + + towrite = this->spec.size; + pcmbuffer = pcm_buf; + + /* Write the audio data, checking for EAGAIN (buffer full) and underrun */ + do { + written = snd_pcm_plugin_write(audio_handle, pcm_buf, towrite); + if (written != towrite) + { + if ((errno == EAGAIN) || (errno == EWOULDBLOCK)) + { + /* Let a little CPU time go by and try to write again */ + SDL_Delay(1); + /* if we wrote some data */ + towrite -= written; + pcmbuffer += written * this->spec.channels; + continue; + } + else + { + if ((errno == EINVAL) || (errno == EIO)) + { + memset(&cstatus, 0, sizeof(cstatus)); + cstatus.channel = SND_PCM_CHANNEL_PLAYBACK; + if ((rval = snd_pcm_plugin_status(audio_handle, &cstatus)) < 0) + { + SDL_SetError("NTO_PlayAudio(): snd_pcm_plugin_status failed: %s\n", snd_strerror(rval)); + return; + } + if ((cstatus.status == SND_PCM_STATUS_UNDERRUN) || (cstatus.status == SND_PCM_STATUS_READY)) + { + if ((rval = snd_pcm_plugin_prepare(audio_handle, SND_PCM_CHANNEL_PLAYBACK)) < 0) + { + SDL_SetError("NTO_PlayAudio(): snd_pcm_plugin_prepare failed: %s\n", snd_strerror(rval)); + return; + } + } + continue; + } + else + { + return; + } + } + } + else + { + /* we wrote all remaining data */ + towrite -= written; + pcmbuffer += written * this->spec.channels; + } + } while ((towrite > 0) && (this->enabled)); + + /* If we couldn't write, assume fatal error for now */ + if (towrite != 0) + { + this->enabled = 0; + } + + return; } -static Uint8 *NTO_GetAudioBuf(_THIS) +static Uint8* NTO_GetAudioBuf(_THIS) { - #ifdef DEBUG_AUDIO - fprintf(stderr, "NTO_GetAudioBuf: pcm_buf %X\n",(Uint8 *)pcm_buf); - #endif - return(pcm_buf); + return pcm_buf; } static void NTO_CloseAudio(_THIS) { - int rval; - - #ifdef DEBUG_AUDIO - fprintf(stderr, "NTO_CloseAudio\n"); - #endif - - this->enabled = 0; - - if ( audio_handle != NULL ) { - if ((rval = snd_pcm_plugin_flush(audio_handle,SND_PCM_CHANNEL_PLAYBACK)) < 0){ - SDL_SetError("snd_pcm_plugin_flush failed: %s\n",snd_strerror(rval)); - return; - } - if ((rval = snd_pcm_close(audio_handle)) < 0){ - SDL_SetError("snd_pcm_close failed: %s\n",snd_strerror(rval)); - return; - } - audio_handle = NULL; - } + int rval; + + this->enabled = 0; + + if (audio_handle != NULL) + { + if ((rval = snd_pcm_plugin_flush(audio_handle, SND_PCM_CHANNEL_PLAYBACK)) < 0) + { + SDL_SetError("NTO_CloseAudio(): snd_pcm_plugin_flush failed: %s\n", snd_strerror(rval)); + return; + } + if ((rval = snd_pcm_close(audio_handle)) < 0) + { + SDL_SetError("NTO_CloseAudio(): snd_pcm_close failed: %s\n",snd_strerror(rval)); + return; + } + audio_handle = NULL; + } } -static int NTO_OpenAudio(_THIS, SDL_AudioSpec *spec) +static int NTO_OpenAudio(_THIS, SDL_AudioSpec* spec) { - int rval; - int format; - Uint16 test_format; - int twidth; - int found; - - #ifdef DEBUG_AUDIO - fprintf(stderr, "NTO_OpenAudio\n"); - #endif + int rval; + int format; + Uint16 test_format; + int found; + + audio_handle = NULL; + this->enabled = 0; + + if (pcm_buf != NULL) + { + SDL_FreeAudioMem(pcm_buf); + pcm_buf = NULL; + } + + /* initialize channel transfer parameters to default */ + NTO_InitAudioParams(&cparams); + + /* Open the audio device */ + rval = snd_pcm_open_preferred(&audio_handle, &cardno, &deviceno, OPEN_FLAGS); + if (rval < 0) + { + SDL_SetError("NTO_OpenAudio(): snd_pcm_open failed: %s\n", snd_strerror(rval)); + return (-1); + } + + if (!NTO_CheckBuggyCards(this, QSA_MMAP_WORKAROUND)) + { + /* enable count status parameter */ + if ((rval = snd_pcm_plugin_set_disable(audio_handle, PLUGIN_DISABLE_MMAP)) < 0) + { + SDL_SetError("snd_pcm_plugin_set_disable failed: %s\n", snd_strerror(rval)); + return (-1); + } + } + + /* Try for a closest match on audio format */ + format = 0; + /* can't use format as SND_PCM_SFMT_U8 = 0 in nto */ + found = 0; + + for (test_format=SDL_FirstAudioFormat(spec->format); !found ;) + { + /* if match found set format to equivalent ALSA format */ + switch (test_format) + { + case AUDIO_U8: + format = SND_PCM_SFMT_U8; + found = 1; + break; + case AUDIO_S8: + format = SND_PCM_SFMT_S8; + found = 1; + break; + case AUDIO_S16LSB: + format = SND_PCM_SFMT_S16_LE; + found = 1; + break; + case AUDIO_S16MSB: + format = SND_PCM_SFMT_S16_BE; + found = 1; + break; + case AUDIO_U16LSB: + format = SND_PCM_SFMT_U16_LE; + found = 1; + break; + case AUDIO_U16MSB: + format = SND_PCM_SFMT_U16_BE; + found = 1; + break; + default: + break; + } + + if (!found) + { + test_format = SDL_NextAudioFormat(); + } + } + + /* assumes test_format not 0 on success */ + if (test_format == 0) + { + SDL_SetError("NTO_OpenAudio(): Couldn't find any hardware audio formats"); + return (-1); + } + + spec->format = test_format; + + /* Set the audio format */ + cparams.format.format = format; + + /* Set mono or stereo audio (currently only two channels supported) */ + cparams.format.voices = spec->channels; - audio_handle = NULL; - this->enabled = 0; - - if ( pcm_buf != NULL ) { - free((Uint8 *)pcm_buf); - pcm_buf = NULL; - } - - /* initialize channel transfer parameters to default */ - init_pcm_cparams(&cparams); - - /* Open the audio device */ - rval = snd_pcm_open_preferred(&audio_handle, NULL, NULL, OPEN_FLAGS); - if ( rval < 0 ) { - SDL_SetError("snd_pcm_open failed: %s\n", snd_strerror(rval)); - return(-1); - } - - /* enable count status parameter */ - if ((rval = snd_pcm_plugin_set_disable(audio_handle, PLUGIN_DISABLE_MMAP))<0){ - SDL_SetError("snd_pcm_plugin_set_disable failed: %s\n", snd_strerror(rval)); - return(-1); - } - - /* Try for a closest match on audio format */ - format = 0; - found = 0; /* can't use format as SND_PCM_SFMT_U8 = 0 in nto */ - for ( test_format = SDL_FirstAudioFormat(spec->format); !found ; ) - { - #ifdef DEBUG_AUDIO - fprintf(stderr, "Trying format 0x%4.4x spec->samples %d\n", test_format,spec->samples); - #endif - - /* if match found set format to equivalent ALSA format */ - switch ( test_format ) { - case AUDIO_U8: - format = SND_PCM_SFMT_U8; - found = 1; - break; - case AUDIO_S8: - format = SND_PCM_SFMT_S8; - found = 1; - break; - case AUDIO_S16LSB: - format = SND_PCM_SFMT_S16_LE; - found = 1; - break; - case AUDIO_S16MSB: - format = SND_PCM_SFMT_S16_BE; - found = 1; - break; - case AUDIO_U16LSB: - format = SND_PCM_SFMT_U16_LE; - found = 1; - break; - case AUDIO_U16MSB: - format = SND_PCM_SFMT_U16_BE; - found = 1; - break; - default: - break; - } - if ( ! found ) { - test_format = SDL_NextAudioFormat(); - } - } - - /* assumes test_format not 0 on success */ - if ( test_format == 0 ) { - SDL_SetError("Couldn't find any hardware audio formats"); - return(-1); - } - - spec->format = test_format; - - /* Set the audio format */ - cparams.format.format = format; - - /* Set mono or stereo audio (currently only two channels supported) */ - cparams.format.voices = spec->channels; - - #ifdef DEBUG_AUDIO - fprintf(stderr,"intializing channels %d\n", cparams.format.voices); - #endif - - /* Set rate */ - cparams.format.rate = spec->freq ; - - /* Setup the transfer parameters according to cparams */ - rval = snd_pcm_plugin_params(audio_handle, &cparams); - if (rval < 0) { - SDL_SetError("snd_pcm_channel_params failed: %s\n", snd_strerror (rval)); - return(-1); - } - - /* Make sure channel is setup right one last time */ - memset( &csetup, 0, sizeof( csetup ) ); - csetup.channel = SND_PCM_CHANNEL_PLAYBACK; - if ( snd_pcm_plugin_setup( audio_handle, &csetup ) < 0 ) - { - SDL_SetError("Unable to setup playback channel\n" ); - return(-1); - } - else - { - #ifdef DEBUG_AUDIO - fprintf(stderr,"requested format: %d\n",cparams.format.format); - fprintf(stderr,"requested frag size: %d\n",cparams.buf.block.frag_size); - fprintf(stderr,"requested max frags: %d\n\n",cparams.buf.block.frags_max); - - fprintf(stderr,"real format: %d\n", csetup.format.format ); - fprintf(stderr,"real frag size : %d\n", csetup.buf.block.frag_size ); - fprintf(stderr,"real max frags : %d\n", csetup.buf.block.frags_max ); - #endif - } - - /* - Allocate memory to the audio buffer and initialize with silence (Note that - buffer size must be a multiple of fragment size, so find closest multiple) - */ - - twidth = snd_pcm_format_width(format); - if (twidth < 0) { - printf("snd_pcm_format_width failed\n"); - twidth = 0; - } - - #ifdef DEBUG_AUDIO - fprintf(stderr,"format is %d bits wide\n",twidth); - #endif - - pcm_len = spec->size ; - - #ifdef DEBUG_AUDIO - fprintf(stderr,"pcm_len set to %d\n", pcm_len); - #endif - - if (pcm_len == 0){ - pcm_len = csetup.buf.block.frag_size; - } - - pcm_buf = (Uint8*)malloc(pcm_len); - if (pcm_buf == NULL) { - SDL_SetError("pcm_buf malloc failed\n"); - return(-1); - } - memset(pcm_buf,spec->silence,pcm_len); - - #ifdef DEBUG_AUDIO - fprintf(stderr,"pcm_buf malloced and silenced.\n"); - #endif - - /* get the file descriptor */ - if( (audio_fd = snd_pcm_file_descriptor(audio_handle, SND_PCM_CHANNEL_PLAYBACK)) < 0){ - fprintf(stderr, "snd_pcm_file_descriptor failed with error code: %d\n", audio_fd); - } - - /* Trigger audio playback */ - rval = snd_pcm_plugin_prepare( audio_handle, SND_PCM_CHANNEL_PLAYBACK); - if (rval < 0) { - SDL_SetError("snd_pcm_plugin_prepare failed: %s\n", snd_strerror (rval)); - return(-1); - } - - this->enabled = 1; - - /* Get the parent process id (we're the parent of the audio thread) */ - parent = getpid(); - - /* We're ready to rock and roll. :-) */ - return(0); + /* Set rate */ + cparams.format.rate = spec->freq; + + /* Setup the transfer parameters according to cparams */ + rval = snd_pcm_plugin_params(audio_handle, &cparams); + if (rval < 0) + { + SDL_SetError("NTO_OpenAudio(): snd_pcm_channel_params failed: %s\n", snd_strerror(rval)); + return (-1); + } + + /* Make sure channel is setup right one last time */ + memset(&csetup, 0x00, sizeof(csetup)); + csetup.channel = SND_PCM_CHANNEL_PLAYBACK; + if (snd_pcm_plugin_setup(audio_handle, &csetup) < 0) + { + SDL_SetError("NTO_OpenAudio(): Unable to setup playback channel\n"); + return -1; + } + + + /* Calculate the final parameters for this audio specification */ + SDL_CalculateAudioSpec(spec); + + pcm_len = spec->size; + + if (pcm_len==0) + { + pcm_len = csetup.buf.block.frag_size * spec->channels * (snd_pcm_format_width(format)/8); + } + + /* Allocate memory to the audio buffer and initialize with silence (Note that + buffer size must be a multiple of fragment size, so find closest multiple) + */ + pcm_buf = (Uint8*)SDL_AllocAudioMem(pcm_len); + if (pcm_buf == NULL) + { + SDL_SetError("NTO_OpenAudio(): pcm buffer allocation failed\n"); + return (-1); + } + memset(pcm_buf, spec->silence, pcm_len); + + /* get the file descriptor */ + if ((audio_fd = snd_pcm_file_descriptor(audio_handle, SND_PCM_CHANNEL_PLAYBACK)) < 0) + { + SDL_SetError("NTO_OpenAudio(): snd_pcm_file_descriptor failed with error code: %s\n", snd_strerror(rval)); + return (-1); + } + + /* Trigger audio playback */ + rval = snd_pcm_plugin_prepare(audio_handle, SND_PCM_CHANNEL_PLAYBACK); + if (rval < 0) + { + SDL_SetError("snd_pcm_plugin_prepare failed: %s\n", snd_strerror(rval)); + return (-1); + } + + this->enabled = 1; + + /* Get the parent process id (we're the parent of the audio thread) */ + parent = getpid(); + + /* We're really ready to rock and roll. :-) */ + return (0); } diff --git a/src/audio/nto/SDL_nto_audio.h b/src/audio/nto/SDL_nto_audio.h index da0465173..4346503d8 100644 --- a/src/audio/nto/SDL_nto_audio.h +++ b/src/audio/nto/SDL_nto_audio.h @@ -20,36 +20,47 @@ slouken@libsdl.org */ -#ifndef _NTO_PCM_audio_h -#define _NTO_PCM_audio_h +#ifndef __SDL_NTO_AUDIO_H__ +#define __SDL_NTO_AUDIO_H__ #include "SDL_sysaudio.h" #include -/* Hidden "this" pointer for the video functions */ +/* Hidden "this" pointer for the audio functions */ #define _THIS SDL_AudioDevice *this -struct SDL_PrivateAudioData { - /* The audio device handle */ - snd_pcm_t *audio_handle; +struct SDL_PrivateAudioData +{ + /* The audio device handle */ + int cardno; + int deviceno; + snd_pcm_t* audio_handle; - /* The audio file descriptor */ - int audio_fd; + /* The audio file descriptor */ + int audio_fd; - /* The parent process id, to detect when application quits */ - pid_t parent; + /* The parent process id, to detect when application quits */ + pid_t parent; - /* Raw mixing buffer */ - Uint8 *pcm_buf; - int pcm_len; + /* Raw mixing buffer */ + Uint8* pcm_buf; + Uint32 pcm_len; + + /* QSA parameters */ + snd_pcm_channel_status_t cstatus; + snd_pcm_channel_params_t cparams; + snd_pcm_channel_setup_t csetup; }; -#define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */ -/* Old variable names */ -#define audio_handle (this->hidden->audio_handle) -#define audio_fd (this->hidden->audio_fd) -#define parent (this->hidden->parent) -#define pcm_buf (this->hidden->pcm_buf) -#define pcm_len (this->hidden->pcm_len) +#define cardno (this->hidden->cardno) +#define deviceno (this->hidden->deviceno) +#define audio_handle (this->hidden->audio_handle) +#define audio_fd (this->hidden->audio_fd) +#define parent (this->hidden->parent) +#define pcm_buf (this->hidden->pcm_buf) +#define pcm_len (this->hidden->pcm_len) +#define cstatus (this->hidden->cstatus) +#define cparams (this->hidden->cparams) +#define csetup (this->hidden->csetup) -#endif /* _NTO_PCM_audio_h */ +#endif /* __SDL_NTO_AUDIO_H__ */ diff --git a/src/video/photon/SDL_ph_video.c b/src/video/photon/SDL_ph_video.c index c4cef53b6..022493ac3 100644 --- a/src/video/photon/SDL_ph_video.c +++ b/src/video/photon/SDL_ph_video.c @@ -64,19 +64,23 @@ static void* ph_GL_GetProcAddress(_THIS, const char* proc); static int ph_GL_MakeCurrent(_THIS); #endif /* HAVE_OPENGL */ +static int phstatus=-1; + static int ph_Available(void) { - int phstat=-1; - - phstat=PtInit(0); - if (phstat==0) - { - return 1; - } - else + if (phstatus==-1) { - return 0; + phstatus=PtInit(NULL); + if (phstatus==0) + { + return 1; + } + else + { + return 0; + } } + return 1; } static SDL_VideoDevice *ph_CreateDevice(int devindex)