| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org> |
| |
| 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 <stdio.h> |
| #include <string.h> |
| #include <stdlib.h> |
| |
| #include "../SDL_audiodev_c.h" |
| #include "../SDL_sysaudio.h" |
| #include "SDL_vitaaudio.h" |
| |
| #include <psp2/kernel/threadmgr.h> |
| #include <psp2/audioout.h> |
| #include <psp2/audioin.h> |
| |
| #define SCE_AUDIO_SAMPLE_ALIGN(s) (((s) + 63) & ~63) |
| #define SCE_AUDIO_MAX_VOLUME 0x8000 |
| |
| static int 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 0; |
| } |
| |
| static int 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 -1; |
| } |
| |
| 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 0; |
| } |
| |
| static int VITAAUD_PlayDevice(SDL_AudioDevice *device, const Uint8 *buffer, int buffer_size) |
| { |
| return (sceAudioOutOutput(device->hidden->port, buffer) == 0) ? 0 : -1; |
| } |
| |
| // This function waits until it is possible to write a full sound buffer |
| static int 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_AtomicGet(&device->shutdown) && (sceAudioOutGetRestSample(device->hidden->port) >= device->buffer_size)) { |
| SDL_Delay(1); |
| } |
| return 0; |
| } |
| |
| static Uint8 *VITAAUD_GetDeviceBuf(SDL_AudioDevice *device, int *buffer_size) |
| { |
| Uint8 *retval = device->hidden->mixbufs[device->hidden->next_buffer]; |
| device->hidden->next_buffer = (device->hidden->next_buffer + 1) % NUM_BUFFERS; |
| return retval; |
| } |
| |
| 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 int 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_AtomicGet(&device->shutdown) && (SDL_GetTicks() < endticks)) { |
| SDL_Delay(1); |
| } |
| return 0; |
| } |
| |
| 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) { |
| return SDL_SetError("Failed to record from device: %x", ret); |
| } |
| 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 SDL_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 = SDL_TRUE; |
| impl->OnlyHasDefaultPlaybackDevice = SDL_TRUE; |
| impl->OnlyHasDefaultRecordingDevice = SDL_TRUE; |
| |
| return SDL_TRUE; |
| } |
| |
| AudioBootStrap VITAAUD_bootstrap = { |
| "vita", "VITA audio driver", VITAAUD_Init, SDL_FALSE |
| }; |
| |
| #endif // SDL_AUDIO_DRIVER_VITA |