Merge commit 'dec0d4ec4153bf9fc2b78ae6c2df45b6ea8dde7a' as 'external/sdl/SDL'
This commit is contained in:
217
external/sdl/SDL/src/audio/vita/SDL_vitaaudio.c
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217
external/sdl/SDL/src/audio/vita/SDL_vitaaudio.c
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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#ifdef SDL_AUDIO_DRIVER_VITA
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "../SDL_audio_c.h"
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#include "../SDL_audiodev_c.h"
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#include "../SDL_sysaudio.h"
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#include "SDL_vitaaudio.h"
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#include <psp2/kernel/threadmgr.h>
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#include <psp2/audioout.h>
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#include <psp2/audioin.h>
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#define SCE_AUDIO_SAMPLE_ALIGN(s) (((s) + 63) & ~63)
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#define SCE_AUDIO_MAX_VOLUME 0x8000
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static int VITAAUD_OpenCaptureDevice(SDL_AudioDevice *_this)
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{
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_this->spec.freq = 16000;
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_this->spec.samples = 512;
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_this->spec.channels = 1;
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SDL_CalculateAudioSpec(&_this->spec);
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_this->hidden->port = sceAudioInOpenPort(SCE_AUDIO_IN_PORT_TYPE_VOICE, 512, 16000, SCE_AUDIO_IN_PARAM_FORMAT_S16_MONO);
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if (_this->hidden->port < 0) {
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return SDL_SetError("Couldn't open audio in port: %x", _this->hidden->port);
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}
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return 0;
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}
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static int VITAAUD_OpenDevice(SDL_AudioDevice *_this, const char *devname)
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{
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int format, mixlen, i, port = SCE_AUDIO_OUT_PORT_TYPE_MAIN;
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int vols[2] = { SCE_AUDIO_MAX_VOLUME, SCE_AUDIO_MAX_VOLUME };
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SDL_AudioFormat test_format;
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const SDL_AudioFormat *closefmts;
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_this->hidden = (struct SDL_PrivateAudioData *)
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SDL_malloc(sizeof(*_this->hidden));
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if (_this->hidden == NULL) {
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return SDL_OutOfMemory();
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}
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SDL_memset(_this->hidden, 0, sizeof(*_this->hidden));
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closefmts = SDL_ClosestAudioFormats(_this->spec.format);
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while ((test_format = *(closefmts++)) != 0) {
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if (test_format == SDL_AUDIO_S16LSB) {
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_this->spec.format = test_format;
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break;
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}
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}
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if (!test_format) {
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return SDL_SetError("Unsupported audio format");
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}
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if (_this->iscapture) {
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return VITAAUD_OpenCaptureDevice(_this);
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}
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/* The sample count must be a multiple of 64. */
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_this->spec.samples = SCE_AUDIO_SAMPLE_ALIGN(_this->spec.samples);
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/* Update the fragment size as size in bytes. */
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SDL_CalculateAudioSpec(&_this->spec);
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/* Allocate the mixing buffer. Its size and starting address must
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be a multiple of 64 bytes. Our sample count is already a multiple of
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64, so spec->size should be a multiple of 64 as well. */
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mixlen = _this->spec.size * NUM_BUFFERS;
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_this->hidden->rawbuf = (Uint8 *)SDL_aligned_alloc(64, mixlen);
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if (_this->hidden->rawbuf == NULL) {
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return SDL_SetError("Couldn't allocate mixing buffer");
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}
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/* Setup the hardware channel. */
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if (_this->spec.channels == 1) {
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format = SCE_AUDIO_OUT_MODE_MONO;
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} else {
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format = SCE_AUDIO_OUT_MODE_STEREO;
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}
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if (_this->spec.freq < 48000) {
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port = SCE_AUDIO_OUT_PORT_TYPE_BGM;
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}
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_this->hidden->port = sceAudioOutOpenPort(port, _this->spec.samples, _this->spec.freq, format);
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if (_this->hidden->port < 0) {
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SDL_aligned_free(_this->hidden->rawbuf);
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_this->hidden->rawbuf = NULL;
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return SDL_SetError("Couldn't open audio out port: %x", _this->hidden->port);
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}
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sceAudioOutSetVolume(_this->hidden->port, SCE_AUDIO_VOLUME_FLAG_L_CH | SCE_AUDIO_VOLUME_FLAG_R_CH, vols);
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SDL_memset(_this->hidden->rawbuf, 0, mixlen);
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for (i = 0; i < NUM_BUFFERS; i++) {
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_this->hidden->mixbufs[i] = &_this->hidden->rawbuf[i * _this->spec.size];
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}
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_this->hidden->next_buffer = 0;
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return 0;
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}
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static void VITAAUD_PlayDevice(SDL_AudioDevice *_this)
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{
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Uint8 *mixbuf = _this->hidden->mixbufs[_this->hidden->next_buffer];
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sceAudioOutOutput(_this->hidden->port, mixbuf);
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_this->hidden->next_buffer = (_this->hidden->next_buffer + 1) % NUM_BUFFERS;
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}
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/* This function waits until it is possible to write a full sound buffer */
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static void VITAAUD_WaitDevice(SDL_AudioDevice *_this)
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{
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/* Because we block when sending audio, there's no need for this function to do anything. */
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}
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static Uint8 *VITAAUD_GetDeviceBuf(SDL_AudioDevice *_this)
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{
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return _this->hidden->mixbufs[_this->hidden->next_buffer];
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}
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static void VITAAUD_CloseDevice(SDL_AudioDevice *_this)
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{
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if (_this->hidden->port >= 0) {
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if (_this->iscapture) {
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sceAudioInReleasePort(_this->hidden->port);
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} else {
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sceAudioOutReleasePort(_this->hidden->port);
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}
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_this->hidden->port = -1;
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}
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if (!_this->iscapture && _this->hidden->rawbuf != NULL) {
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SDL_aligned_free(_this->hidden->rawbuf);
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_this->hidden->rawbuf = NULL;
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}
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}
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static int VITAAUD_CaptureFromDevice(SDL_AudioDevice *_this, void *buffer, int buflen)
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{
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int ret;
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SDL_assert(buflen == _this->spec.size);
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ret = sceAudioInInput(_this->hidden->port, buffer);
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if (ret < 0) {
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return SDL_SetError("Failed to capture from device: %x", ret);
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}
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return _this->spec.size;
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}
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static void VITAAUD_ThreadInit(SDL_AudioDevice *_this)
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{
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/* Increase the priority of this audio thread by 1 to put it
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ahead of other SDL threads. */
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SceUID thid;
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SceKernelThreadInfo info;
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thid = sceKernelGetThreadId();
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info.size = sizeof(SceKernelThreadInfo);
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if (sceKernelGetThreadInfo(thid, &info) == 0) {
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sceKernelChangeThreadPriority(thid, info.currentPriority - 1);
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}
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}
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static SDL_bool VITAAUD_Init(SDL_AudioDriverImpl *impl)
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{
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/* Set the function pointers */
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impl->OpenDevice = VITAAUD_OpenDevice;
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impl->PlayDevice = VITAAUD_PlayDevice;
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impl->WaitDevice = VITAAUD_WaitDevice;
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impl->GetDeviceBuf = VITAAUD_GetDeviceBuf;
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impl->CloseDevice = VITAAUD_CloseDevice;
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impl->ThreadInit = VITAAUD_ThreadInit;
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impl->CaptureFromDevice = VITAAUD_CaptureFromDevice;
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/* and the capabilities */
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impl->HasCaptureSupport = SDL_TRUE;
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impl->OnlyHasDefaultOutputDevice = SDL_TRUE;
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impl->OnlyHasDefaultCaptureDevice = SDL_TRUE;
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return SDL_TRUE; /* this audio target is available. */
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}
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AudioBootStrap VITAAUD_bootstrap = {
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"vita", "VITA audio driver", VITAAUD_Init, SDL_FALSE
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};
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#endif /* SDL_AUDIO_DRIVER_VITA */
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