Add PSP support
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Captain Lex
parent
f227d45db9
commit
47dac69dc7
37 changed files with 3792 additions and 1 deletions
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@ -66,7 +66,7 @@ extern AudioBootStrap DART_bootstrap;
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extern AudioBootStrap NDSAUD_bootstrap;
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extern AudioBootStrap FUSIONSOUND_bootstrap;
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extern AudioBootStrap ANDROIDAUD_bootstrap;
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extern AudioBootStrap PSPAUD_bootstrap;
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/* Available audio drivers */
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static const AudioBootStrap *const bootstrap[] = {
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@ -129,6 +129,9 @@ static const AudioBootStrap *const bootstrap[] = {
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#endif
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#if SDL_AUDIO_DRIVER_ANDROID
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&ANDROIDAUD_bootstrap,
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#endif
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#if SDL_AUDIO_DRIVER_PSP
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&PSPAUD_bootstrap,
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#endif
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NULL
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};
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199
src/audio/psp/SDL_pspaudio.c
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199
src/audio/psp/SDL_pspaudio.c
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@ -0,0 +1,199 @@
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2013 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 <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <malloc.h>
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#include "SDL_audio.h"
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#include "SDL_error.h"
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#include "SDL_timer.h"
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#include "../SDL_audiomem.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_pspaudio.h"
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#include <pspaudio.h>
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#include <pspthreadman.h>
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/* The tag name used by PSP audio */
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#define PSPAUD_DRIVER_NAME "psp"
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static int
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PSPAUD_OpenDevice(_THIS, const char *devname, int iscapture)
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{
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int format, mixlen, i;
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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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SDL_OutOfMemory();
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return 0;
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}
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SDL_memset(this->hidden, 0, sizeof(*this->hidden));
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switch (this->spec.format & 0xff) {
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case 8:
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case 16:
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this->spec.format = AUDIO_S16LSB;
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break;
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default:
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SDL_SetError("Unsupported audio format");
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return 0;
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}
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/* The sample count must be a multiple of 64. */
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this->spec.samples = PSP_AUDIO_SAMPLE_ALIGN(this->spec.samples);
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this->spec.freq = 44100;
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/* Update the fragment size as size in bytes. */
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// SDL_CalculateAudioSpec(this->spec); MOD
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switch (this->spec.format) {
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case AUDIO_U8:
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this->spec.silence = 0x80;
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break;
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default:
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this->spec.silence = 0x00;
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break;
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}
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this->spec.size = SDL_AUDIO_BITSIZE(this->spec.format) / 8;
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this->spec.size *= this->spec.channels;
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this->spec.size *= this->spec.samples;
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//==========================================
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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 *) memalign(64, mixlen);
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if (this->hidden->rawbuf == NULL) {
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SDL_SetError("Couldn't allocate mixing buffer");
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return 0;
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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 = PSP_AUDIO_FORMAT_MONO;
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} else {
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format = PSP_AUDIO_FORMAT_STEREO;
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}
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this->hidden->channel = sceAudioChReserve(PSP_AUDIO_NEXT_CHANNEL, this->spec.samples, format);
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if (this->hidden->channel < 0) {
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SDL_SetError("Couldn't reserve hardware channel");
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free(this->hidden->rawbuf);
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this->hidden->rawbuf = NULL;
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return 0;
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}
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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 1;
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}
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static void PSPAUD_PlayDevice(_THIS)
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{
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Uint8 *mixbuf = this->hidden->mixbufs[this->hidden->next_buffer];
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if (this->spec.channels == 1) {
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sceAudioOutputBlocking(this->hidden->channel, PSP_AUDIO_VOLUME_MAX, mixbuf);
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} else {
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sceAudioOutputPannedBlocking(this->hidden->channel, PSP_AUDIO_VOLUME_MAX, PSP_AUDIO_VOLUME_MAX, mixbuf);
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}
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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 PSPAUD_WaitDevice(_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 *PSPAUD_GetDeviceBuf(_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 PSPAUD_CloseDevice(_THIS)
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{
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if (this->hidden->channel >= 0) {
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sceAudioChRelease(this->hidden->channel);
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this->hidden->channel = -1;
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}
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if (this->hidden->rawbuf != NULL) {
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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 void PSPAUD_ThreadInit(_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 status;
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thid = sceKernelGetThreadId();
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status.size = sizeof(SceKernelThreadInfo);
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if (sceKernelReferThreadStatus(thid, &status) == 0) {
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sceKernelChangeThreadPriority(thid, status.currentPriority - 1);
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}
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}
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static int
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PSPAUD_Init(SDL_AudioDriverImpl * impl)
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{
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// Set the function pointers
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impl->OpenDevice = PSPAUD_OpenDevice;
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impl->PlayDevice = PSPAUD_PlayDevice;
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impl->WaitDevice = PSPAUD_WaitDevice;
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impl->GetDeviceBuf = PSPAUD_GetDeviceBuf;
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impl->WaitDone = PSPAUD_WaitDevice;
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impl->CloseDevice = PSPAUD_CloseDevice;
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impl->ThreadInit = PSPAUD_ThreadInit;
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//PSP audio device
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impl->OnlyHasDefaultOutputDevice = 1;
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/*
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impl->HasCaptureSupport = 1;
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impl->OnlyHasDefaultInputDevice = 1;
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*/
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/*
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impl->DetectDevices = DSOUND_DetectDevices;
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impl->Deinitialize = DSOUND_Deinitialize;
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*/
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return 1; /* this audio target is available. */
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}
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AudioBootStrap PSPAUD_bootstrap = {
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"psp", "PSP audio driver", PSPAUD_Init, 0
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};
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/* SDL_AUDI*/
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45
src/audio/psp/SDL_pspaudio.h
Normal file
45
src/audio/psp/SDL_pspaudio.h
Normal file
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@ -0,0 +1,45 @@
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2013 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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#ifndef _SDL_pspaudio_h
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#define _SDL_pspaudio_h
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#include "../SDL_sysaudio.h"
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/* Hidden "this" pointer for the video functions */
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#define _THIS SDL_AudioDevice *this
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#define NUM_BUFFERS 2
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struct SDL_PrivateAudioData {
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/* The hardware output channel. */
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int channel;
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/* The raw allocated mixing buffer. */
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Uint8 *rawbuf;
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/* Individual mixing buffers. */
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Uint8 *mixbufs[NUM_BUFFERS];
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/* Index of the next available mixing buffer. */
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int next_buffer;
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};
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#endif /* _SDL_pspaudio_h */
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/* vim: ts=4 sw=4
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*/
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