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pspaudio: Updated for SDL3 audio API. 

However, this still blocks in PlayDevice and leaves WaitDevice as a no-op,
which isn't ideal, since the device lock is held during PlayDevice.

Ideally, this should be fixed.
main
Ryan C. Gordon 2023-07-05 02:44:59 -04:00
parent 121a2dce15
commit 1bfe97c235
No known key found for this signature in database
GPG Key ID: FA148B892AB48044
1 changed files with 59 additions and 72 deletions
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123
src/audio/psp/SDL_pspaudio.c
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@ -34,41 +34,36 @@
#include <pspaudio.h>
#include <pspthreadman.h>
/* The tag name used by PSP audio */
#define PSPAUDIO_DRIVER_NAME "psp"
static inline SDL_bool isBasicAudioConfig(const SDL_AudioSpec *spec)
{
return spec->freq == 44100;
}
static int PSPAUDIO_OpenDevice(SDL_AudioDevice *_this, const char *devname)
static int PSPAUDIO_OpenDevice(SDL_AudioDevice *device)
{
int format, mixlen, i;
_this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc(sizeof(*_this->hidden));
if (_this->hidden == NULL) {
device->hidden = (struct SDL_PrivateAudioData *) SDL_calloc(1, sizeof(*device->hidden));
if (device->hidden == NULL) {
return SDL_OutOfMemory();
}
SDL_zerop(_this->hidden);
/* device only natively supports S16LSB */
_this->spec.format = SDL_AUDIO_S16LSB;
// device only natively supports S16LSB
device->spec.format = SDL_AUDIO_S16LSB;
/* PSP has some limitations with the Audio. It fully supports 44.1KHz (Mono & Stereo),
however with frequencies different than 44.1KHz, it just supports Stereo,
so a resampler must be done for these scenarios */
if (isBasicAudioConfig(&_this->spec)) {
/* The sample count must be a multiple of 64. */
_this->spec.samples = PSP_AUDIO_SAMPLE_ALIGN(_this->spec.samples);
/* The number of channels (1 or 2). */
_this->spec.channels = _this->spec.channels == 1 ? 1 : 2;
format = _this->spec.channels == 1 ? PSP_AUDIO_FORMAT_MONO : PSP_AUDIO_FORMAT_STEREO;
_this->hidden->channel = sceAudioChReserve(PSP_AUDIO_NEXT_CHANNEL, _this->spec.samples, format);
if (isBasicAudioConfig(&device->spec)) {
// The sample count must be a multiple of 64.
device->sample_frames = PSP_AUDIO_SAMPLE_ALIGN(device->sample_frames);
// The number of channels (1 or 2).
device->spec.channels = device->spec.channels == 1 ? 1 : 2;
format = (device->spec.channels == 1) ? PSP_AUDIO_FORMAT_MONO : PSP_AUDIO_FORMAT_STEREO;
device->hidden->channel = sceAudioChReserve(PSP_AUDIO_NEXT_CHANNEL, device->spec.samples, format);
} else {
/* 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11050, 8000 */
switch (_this->spec.freq) {
// 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11050, 8000
switch (device->spec.freq) {
case 8000:
case 11025:
case 12000:
@ -78,93 +73,90 @@ static int PSPAUDIO_OpenDevice(SDL_AudioDevice *_this, const char *devname)
case 32000:
case 44100:
case 48000:
_this->spec.freq = _this->spec.freq;
break;
break; // acceptable, keep it
default:
_this->spec.freq = 48000;
device->spec.freq = 48000;
break;
}
/* The number of samples to output in one output call (min 17, max 4111). */
_this->spec.samples = _this->spec.samples < 17 ? 17 : (_this->spec.samples > 4111 ? 4111 : _this->spec.samples);
_this->spec.channels = 2; /* we're forcing the hardware to stereo. */
_this->hidden->channel = sceAudioSRCChReserve(_this->spec.samples, _this->spec.freq, 2);
// The number of samples to output in one output call (min 17, max 4111).
device->sample_frames = device->sample_frames < 17 ? 17 : (device->sample_frames > 4111 ? 4111 : device->sample_frames);
device->spec.channels = 2; // we're forcing the hardware to stereo.
device->hidden->channel = sceAudioSRCChReserve(device->sample_frames, device->spec.freq, 2);
}
if (_this->hidden->channel < 0) {
SDL_aligned_free(_this->hidden->rawbuf);
_this->hidden->rawbuf = NULL;
return SDL_SetError("Couldn't reserve hardware channel");
}
/* Update the fragment size as size in bytes. */
SDL_CalculateAudioSpec(&_this->spec);
// Update the fragment size as size in bytes.
SDL_UpdatedAudioDeviceFormat(device);
/* Allocate the mixing buffer. Its size and starting address must
be a multiple of 64 bytes. Our sample count is already a multiple of
64, so spec->size should be a multiple of 64 as well. */
mixlen = _this->spec.size * NUM_BUFFERS;
_this->hidden->rawbuf = (Uint8 *)SDL_aligned_alloc(64, mixlen);
if (_this->hidden->rawbuf == NULL) {
mixlen = device->buffer_size * NUM_BUFFERS;
device->hidden->rawbuf = (Uint8 *)SDL_aligned_alloc(64, mixlen);
if (device->hidden->rawbuf == NULL) {
return SDL_SetError("Couldn't allocate mixing buffer");
}
SDL_memset(_this->hidden->rawbuf, 0, mixlen);
SDL_memset(device->hidden->rawbuf, device->silence_value, mixlen);
for (i = 0; i < NUM_BUFFERS; i++) {
_this->hidden->mixbufs[i] = &_this->hidden->rawbuf[i * _this->spec.size];
device->hidden->mixbufs[i] = &device->hidden->rawbuf[i * device->buffer_size];
}
_this->hidden->next_buffer = 0;
return 0;
}
static void PSPAUDIO_PlayDevice(SDL_AudioDevice *_this)
static void PSPAUDIO_PlayDevice(SDL_AudioDevice *device, const Uint8 *buffer, int buflen)
{
Uint8 *mixbuf = _this->hidden->mixbufs[_this->hidden->next_buffer];
if (!isBasicAudioConfig(&_this->spec)) {
SDL_assert(_this->spec.channels == 2);
sceAudioSRCOutputBlocking(PSP_AUDIO_VOLUME_MAX, mixbuf);
if (!isBasicAudioConfig(&device->spec)) {
SDL_assert(device->spec.channels == 2);
sceAudioSRCOutputBlocking(PSP_AUDIO_VOLUME_MAX, buffer);
} else {
sceAudioOutputPannedBlocking(_this->hidden->channel, PSP_AUDIO_VOLUME_MAX, PSP_AUDIO_VOLUME_MAX, mixbuf);
sceAudioOutputPannedBlocking(device->hidden->channel, PSP_AUDIO_VOLUME_MAX, PSP_AUDIO_VOLUME_MAX, buffer);
}
_this->hidden->next_buffer = (_this->hidden->next_buffer + 1) % NUM_BUFFERS;
}
/* This function waits until it is possible to write a full sound buffer */
static void PSPAUDIO_WaitDevice(SDL_AudioDevice *_this)
static void PSPAUDIO_WaitDevice(SDL_AudioDevice *device)
{
/* Because we block when sending audio, there's no need for this function to do anything. */
// Because we block when sending audio, there's no need for this function to do anything.
}
static Uint8 *PSPAUDIO_GetDeviceBuf(SDL_AudioDevice *_this)
static Uint8 *PSPAUDIO_GetDeviceBuf(SDL_AudioDevice *device, int *buffer_size)
{
return _this->hidden->mixbufs[_this->hidden->next_buffer];
Uint8 *buffer = device->hidden->mixbufs[device->hidden->next_buffer];
device->hidden->next_buffer = (device->hidden->next_buffer + 1) % NUM_BUFFERS;
return buffer;
}
static void PSPAUDIO_CloseDevice(SDL_AudioDevice *_this)
static void PSPAUDIO_CloseDevice(SDL_AudioDevice *device)
{
if (_this->hidden->channel >= 0) {
if (!isBasicAudioConfig(&_this->spec)) {
if (device->hidden) {
if (device->hidden->channel >= 0) {
if (!isBasicAudioConfig(&device->spec)) {
sceAudioSRCChRelease();
} else {
sceAudioChRelease(_this->hidden->channel);
sceAudioChRelease(device->hidden->channel);
}
_this->hidden->channel = -1;
device->hidden->channel = -1;
}
if (_this->hidden->rawbuf != NULL) {
if (device->hidden->rawbuf != NULL) {
SDL_aligned_free(_this->hidden->rawbuf);
_this->hidden->rawbuf = NULL;
device->hidden->rawbuf = NULL;
}
SDL_free(device->hidden);
device->hidden = NULL;
}
}
static void PSPAUDIO_ThreadInit(SDL_AudioDevice *_this)
static void PSPAUDIO_ThreadInit(SDL_AudioDevice *device)
{
/* Increase the priority of this audio thread by 1 to put it
ahead of other SDL threads. */
SceUID thid;
const SceUID thid = sceKernelGetThreadId()
SceKernelThreadInfo status;
thid = sceKernelGetThreadId();
status.size = sizeof(SceKernelThreadInfo);
if (sceKernelReferThreadStatus(thid, &status) == 0) {
sceKernelChangeThreadPriority(thid, status.currentPriority - 1);
@ -173,25 +165,20 @@ static void PSPAUDIO_ThreadInit(SDL_AudioDevice *_this)
static SDL_bool PSPAUDIO_Init(SDL_AudioDriverImpl *impl)
{
/* Set the function pointers */
impl->OpenDevice = PSPAUDIO_OpenDevice;
impl->PlayDevice = PSPAUDIO_PlayDevice;
impl->WaitDevice = PSPAUDIO_WaitDevice;
impl->GetDeviceBuf = PSPAUDIO_GetDeviceBuf;
impl->CloseDevice = PSPAUDIO_CloseDevice;
impl->ThreadInit = PSPAUDIO_ThreadInit;
/* PSP audio device */
impl->OnlyHasDefaultOutputDevice = SDL_TRUE;
/*
impl->HasCaptureSupport = SDL_TRUE;
impl->OnlyHasDefaultCaptureDevice = SDL_TRUE;
*/
return SDL_TRUE; /* this audio target is available. */
//impl->HasCaptureSupport = SDL_TRUE;
//impl->OnlyHasDefaultCaptureDevice = SDL_TRUE;
return SDL_TRUE;
}
AudioBootStrap PSPAUDIO_bootstrap = {
"psp", "PSP audio driver", PSPAUDIO_Init, SDL_FALSE
};
#endif /* SDL_AUDIO_DRIVER_PSP */
#endif // SDL_AUDIO_DRIVER_PSP