From 5a079a2d114f96d4847d1ee305d5b7c16eeec50e Mon Sep 17 00:00:00 2001 From: 3gg <3gg@shellblade.net> Date: Sat, 27 Dec 2025 12:03:39 -0800 Subject: Initial commit --- contrib/SDL-3.2.8/src/audio/vita/SDL_vitaaudio.c | 238 +++++++++++++++++++++++ 1 file changed, 238 insertions(+) create mode 100644 contrib/SDL-3.2.8/src/audio/vita/SDL_vitaaudio.c (limited to 'contrib/SDL-3.2.8/src/audio/vita/SDL_vitaaudio.c') diff --git a/contrib/SDL-3.2.8/src/audio/vita/SDL_vitaaudio.c b/contrib/SDL-3.2.8/src/audio/vita/SDL_vitaaudio.c new file mode 100644 index 0000000..e194f21 --- /dev/null +++ b/contrib/SDL-3.2.8/src/audio/vita/SDL_vitaaudio.c @@ -0,0 +1,238 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2025 Sam Lantinga + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ +#include "SDL_internal.h" + +#ifdef SDL_AUDIO_DRIVER_VITA + +#include +#include +#include + +#include "../SDL_audiodev_c.h" +#include "../SDL_sysaudio.h" +#include "SDL_vitaaudio.h" + +#include +#include +#include + +#define SCE_AUDIO_SAMPLE_ALIGN(s) (((s) + 63) & ~63) +#define SCE_AUDIO_MAX_VOLUME 0x8000 + +static bool VITAAUD_OpenRecordingDevice(SDL_AudioDevice *device) +{ + device->spec.freq = 16000; + device->spec.channels = 1; + device->sample_frames = 512; + + SDL_UpdatedAudioDeviceFormat(device); + + device->hidden->port = sceAudioInOpenPort(SCE_AUDIO_IN_PORT_TYPE_VOICE, 512, 16000, SCE_AUDIO_IN_PARAM_FORMAT_S16_MONO); + + if (device->hidden->port < 0) { + return SDL_SetError("Couldn't open audio in port: %x", device->hidden->port); + } + + return true; +} + +static bool VITAAUD_OpenDevice(SDL_AudioDevice *device) +{ + int format, mixlen, i, port = SCE_AUDIO_OUT_PORT_TYPE_MAIN; + int vols[2] = { SCE_AUDIO_MAX_VOLUME, SCE_AUDIO_MAX_VOLUME }; + SDL_AudioFormat test_format; + const SDL_AudioFormat *closefmts; + + device->hidden = (struct SDL_PrivateAudioData *) + SDL_calloc(1, sizeof(*device->hidden)); + if (!device->hidden) { + return false; + } + + closefmts = SDL_ClosestAudioFormats(device->spec.format); + while ((test_format = *(closefmts++)) != 0) { + if (test_format == SDL_AUDIO_S16LE) { + device->spec.format = test_format; + break; + } + } + + if (!test_format) { + return SDL_SetError("Unsupported audio format"); + } + + if (device->recording) { + return VITAAUD_OpenRecordingDevice(device); + } + + // The sample count must be a multiple of 64. + device->sample_frames = SCE_AUDIO_SAMPLE_ALIGN(device->sample_frames); + + // 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 = device->buffer_size * NUM_BUFFERS; + device->hidden->rawbuf = (Uint8 *)SDL_aligned_alloc(64, mixlen); + if (!device->hidden->rawbuf) { + return SDL_SetError("Couldn't allocate mixing buffer"); + } + + // Setup the hardware channel. + if (device->spec.channels == 1) { + format = SCE_AUDIO_OUT_MODE_MONO; + } else { + format = SCE_AUDIO_OUT_MODE_STEREO; + } + + // the main port requires 48000Hz audio, so this drops to the background music port if necessary + if (device->spec.freq < 48000) { + port = SCE_AUDIO_OUT_PORT_TYPE_BGM; + } + + device->hidden->port = sceAudioOutOpenPort(port, device->sample_frames, device->spec.freq, format); + if (device->hidden->port < 0) { + SDL_aligned_free(device->hidden->rawbuf); + device->hidden->rawbuf = NULL; + return SDL_SetError("Couldn't open audio out port: %x", device->hidden->port); + } + + sceAudioOutSetVolume(device->hidden->port, SCE_AUDIO_VOLUME_FLAG_L_CH | SCE_AUDIO_VOLUME_FLAG_R_CH, vols); + + SDL_memset(device->hidden->rawbuf, 0, mixlen); + for (i = 0; i < NUM_BUFFERS; i++) { + device->hidden->mixbufs[i] = &device->hidden->rawbuf[i * device->buffer_size]; + } + + device->hidden->next_buffer = 0; + return true; +} + +static bool VITAAUD_PlayDevice(SDL_AudioDevice *device, const Uint8 *buffer, int buffer_size) +{ + return (sceAudioOutOutput(device->hidden->port, buffer) == 0); +} + +// This function waits until it is possible to write a full sound buffer +static bool VITAAUD_WaitDevice(SDL_AudioDevice *device) +{ + // !!! FIXME: we might just need to sleep roughly as long as playback buffers take to process, based on sample rate, etc. + while (!SDL_GetAtomicInt(&device->shutdown) && (sceAudioOutGetRestSample(device->hidden->port) >= device->buffer_size)) { + SDL_Delay(1); + } + return true; +} + +static Uint8 *VITAAUD_GetDeviceBuf(SDL_AudioDevice *device, int *buffer_size) +{ + Uint8 *result = device->hidden->mixbufs[device->hidden->next_buffer]; + device->hidden->next_buffer = (device->hidden->next_buffer + 1) % NUM_BUFFERS; + return result; +} + +static void VITAAUD_CloseDevice(SDL_AudioDevice *device) +{ + if (device->hidden) { + if (device->hidden->port >= 0) { + if (device->recording) { + sceAudioInReleasePort(device->hidden->port); + } else { + sceAudioOutReleasePort(device->hidden->port); + } + device->hidden->port = -1; + } + + if (!device->recording && device->hidden->rawbuf) { + SDL_aligned_free(device->hidden->rawbuf); // this uses SDL_aligned_alloc(), not SDL_malloc() + device->hidden->rawbuf = NULL; + } + SDL_free(device->hidden); + device->hidden = NULL; + } +} + +static bool VITAAUD_WaitRecordingDevice(SDL_AudioDevice *device) +{ + // there's only a blocking call to obtain more data, so we'll just sleep as + // long as a buffer would run. + const Uint64 endticks = SDL_GetTicks() + ((device->sample_frames * 1000) / device->spec.freq); + while (!SDL_GetAtomicInt(&device->shutdown) && (SDL_GetTicks() < endticks)) { + SDL_Delay(1); + } + return true; +} + +static int VITAAUD_RecordDevice(SDL_AudioDevice *device, void *buffer, int buflen) +{ + int ret; + SDL_assert(buflen == device->buffer_size); + ret = sceAudioInInput(device->hidden->port, buffer); + if (ret < 0) { + SDL_SetError("Failed to record from device: %x", ret); + return -1; + } + return device->buffer_size; +} + +static void VITAAUD_FlushRecording(SDL_AudioDevice *device) +{ + // just grab the latest and dump it. + sceAudioInInput(device->hidden->port, device->work_buffer); +} + +static void VITAAUD_ThreadInit(SDL_AudioDevice *device) +{ + // Increase the priority of this audio thread by 1 to put it ahead of other SDL threads. + SceUID thid; + SceKernelThreadInfo info; + thid = sceKernelGetThreadId(); + info.size = sizeof(SceKernelThreadInfo); + if (sceKernelGetThreadInfo(thid, &info) == 0) { + sceKernelChangeThreadPriority(thid, info.currentPriority - 1); + } +} + +static bool VITAAUD_Init(SDL_AudioDriverImpl *impl) +{ + impl->OpenDevice = VITAAUD_OpenDevice; + impl->PlayDevice = VITAAUD_PlayDevice; + impl->WaitDevice = VITAAUD_WaitDevice; + impl->GetDeviceBuf = VITAAUD_GetDeviceBuf; + impl->CloseDevice = VITAAUD_CloseDevice; + impl->ThreadInit = VITAAUD_ThreadInit; + impl->WaitRecordingDevice = VITAAUD_WaitRecordingDevice; + impl->FlushRecording = VITAAUD_FlushRecording; + impl->RecordDevice = VITAAUD_RecordDevice; + + impl->HasRecordingSupport = true; + impl->OnlyHasDefaultPlaybackDevice = true; + impl->OnlyHasDefaultRecordingDevice = true; + + return true; +} + +AudioBootStrap VITAAUD_bootstrap = { + "vita", "VITA audio driver", VITAAUD_Init, false, false +}; + +#endif // SDL_AUDIO_DRIVER_VITA -- cgit v1.2.3