mirror of
https://github.com/Maschell/libgui.git
synced 2024-12-02 17:44:20 +01:00
352 lines
9.4 KiB
C++
352 lines
9.4 KiB
C++
/***************************************************************************
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* Copyright (C) 2010
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* by Dimok
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*
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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
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* damages arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any
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* purpose, including commercial applications, and to alter it and
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* redistribute it freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you
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* must not claim that you wrote the original software. If you use
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* this software in a product, an acknowledgment in the product
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* documentation would be appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and
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* must not be misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*
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* for WiiXplorer 2010
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***************************************************************************/
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#include <unistd.h>
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#include <malloc.h>
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//#include "common/common.h"
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#include <dynamic_libs/ax_functions.h>
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#include "fs/CFile.hpp"
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#include "SoundHandler.hpp"
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#include "WavDecoder.hpp"
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#include "Mp3Decoder.hpp"
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#include "OggDecoder.hpp"
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SoundHandler * SoundHandler::handlerInstance = NULL;
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SoundHandler::SoundHandler()
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: CThread(CThread::eAttributeAffCore1 | CThread::eAttributePinnedAff, 0, 0x8000)
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{
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Decoding = false;
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ExitRequested = false;
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for(u32 i = 0; i < MAX_DECODERS; ++i)
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{
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DecoderList[i] = NULL;
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voiceList[i] = NULL;
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}
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resumeThread();
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//! wait for initialization
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while(!isThreadSuspended())
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os_usleep(1000);
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}
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SoundHandler::~SoundHandler()
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{
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ExitRequested = true;
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ThreadSignal();
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ClearDecoderList();
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}
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void SoundHandler::AddDecoder(s32 voice, const char * filepath)
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{
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if(voice < 0 || voice >= MAX_DECODERS)
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return;
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if(DecoderList[voice] != NULL)
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RemoveDecoder(voice);
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DecoderList[voice] = GetSoundDecoder(filepath);
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}
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void SoundHandler::AddDecoder(s32 voice, const u8 * snd, s32 len)
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{
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if(voice < 0 || voice >= MAX_DECODERS)
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return;
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if(DecoderList[voice] != NULL)
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RemoveDecoder(voice);
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DecoderList[voice] = GetSoundDecoder(snd, len);
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}
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void SoundHandler::RemoveDecoder(s32 voice)
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{
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if(voice < 0 || voice >= MAX_DECODERS)
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return;
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if(DecoderList[voice] != NULL)
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{
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if(voiceList[voice] && voiceList[voice]->getState() != Voice::STATE_STOPPED)
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{
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if(voiceList[voice]->getState() != Voice::STATE_STOP)
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voiceList[voice]->setState(Voice::STATE_STOP);
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while(voiceList[voice]->getState() != Voice::STATE_STOPPED)
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os_usleep(1000);
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}
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SoundDecoder *decoder = DecoderList[voice];
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decoder->Lock();
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DecoderList[voice] = NULL;
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decoder->Unlock();
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delete decoder;
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}
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}
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void SoundHandler::ClearDecoderList()
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{
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for(u32 i = 0; i < MAX_DECODERS; ++i)
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RemoveDecoder(i);
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}
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static inline bool CheckMP3Signature(const u8 * buffer)
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{
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const char MP3_Magic[][3] =
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{
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{'I', 'D', '3'}, //'ID3'
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{0xff, 0xfe}, //'MPEG ADTS, layer III, v1.0 [protected]', 'mp3', 'audio/mpeg'),
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{0xff, 0xff}, //'MPEG ADTS, layer III, v1.0', 'mp3', 'audio/mpeg'),
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{0xff, 0xfa}, //'MPEG ADTS, layer III, v1.0 [protected]', 'mp3', 'audio/mpeg'),
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{0xff, 0xfb}, //'MPEG ADTS, layer III, v1.0', 'mp3', 'audio/mpeg'),
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{0xff, 0xf2}, //'MPEG ADTS, layer III, v2.0 [protected]', 'mp3', 'audio/mpeg'),
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{0xff, 0xf3}, //'MPEG ADTS, layer III, v2.0', 'mp3', 'audio/mpeg'),
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{0xff, 0xf4}, //'MPEG ADTS, layer III, v2.0 [protected]', 'mp3', 'audio/mpeg'),
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{0xff, 0xf5}, //'MPEG ADTS, layer III, v2.0', 'mp3', 'audio/mpeg'),
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{0xff, 0xf6}, //'MPEG ADTS, layer III, v2.0 [protected]', 'mp3', 'audio/mpeg'),
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{0xff, 0xf7}, //'MPEG ADTS, layer III, v2.0', 'mp3', 'audio/mpeg'),
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{0xff, 0xe2}, //'MPEG ADTS, layer III, v2.5 [protected]', 'mp3', 'audio/mpeg'),
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{0xff, 0xe3}, //'MPEG ADTS, layer III, v2.5', 'mp3', 'audio/mpeg'),
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};
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if(buffer[0] == MP3_Magic[0][0] && buffer[1] == MP3_Magic[0][1] &&
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buffer[2] == MP3_Magic[0][2])
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{
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return true;
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}
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for(s32 i = 1; i < 13; i++)
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{
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if(buffer[0] == MP3_Magic[i][0] && buffer[1] == MP3_Magic[i][1])
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return true;
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}
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return false;
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}
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SoundDecoder * SoundHandler::GetSoundDecoder(const char * filepath)
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{
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u32 magic;
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CFile f(filepath, CFile::ReadOnly);
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if(f.size() == 0)
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return NULL;
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do
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{
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f.read((u8 *) &magic, 1);
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}
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while(((u8 *) &magic)[0] == 0 && f.tell() < f.size());
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if(f.tell() == f.size())
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return NULL;
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f.seek(f.tell()-1, SEEK_SET);
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f.read((u8 *) &magic, 4);
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f.close();
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if(magic == 0x4f676753) // 'OggS'
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{
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return new OggDecoder(filepath);
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}
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else if(magic == 0x52494646) // 'RIFF'
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{
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return new WavDecoder(filepath);
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}
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else if(CheckMP3Signature((u8 *) &magic) == true)
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{
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return new Mp3Decoder(filepath);
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}
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return new SoundDecoder(filepath);
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}
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SoundDecoder * SoundHandler::GetSoundDecoder(const u8 * sound, s32 length)
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{
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const u8 * check = sound;
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s32 counter = 0;
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while(check[0] == 0 && counter < length)
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{
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check++;
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counter++;
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}
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if(counter >= length)
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return NULL;
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u32 * magic = (u32 *) check;
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if(magic[0] == 0x4f676753) // 'OggS'
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{
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return new OggDecoder(sound, length);
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}
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else if(magic[0] == 0x52494646) // 'RIFF'
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{
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return new WavDecoder(sound, length);
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}
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else if(CheckMP3Signature(check) == true)
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{
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return new Mp3Decoder(sound, length);
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}
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return new SoundDecoder(sound, length);
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}
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void SoundHandler::executeThread()
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{
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// v2 sound lib can not properly end transition audio on old firmwares
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if (OS_FIRMWARE >= 400 && OS_FIRMWARE <= 410)
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{
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ProperlyEndTransitionAudio();
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}
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//! initialize 48 kHz renderer
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u32 params[3] = { 1, 0, 0 };
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if(AXInitWithParams != 0)
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AXInitWithParams(params);
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else
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AXInit();
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// The problem with last voice on 500 was caused by it having priority 0
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// We would need to change this priority distribution if for some reason
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// we would need MAX_DECODERS > Voice::PRIO_MAX
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for(u32 i = 0; i < MAX_DECODERS; ++i)
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{
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s32 priority = (MAX_DECODERS - i) * Voice::PRIO_MAX / MAX_DECODERS;
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voiceList[i] = new Voice(priority); // allocate voice 0 with highest priority
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}
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AXRegisterFrameCallback((void*)&axFrameCallback);
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u16 i = 0;
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while (!ExitRequested)
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{
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suspendThread();
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for(i = 0; i < MAX_DECODERS; ++i)
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{
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if(DecoderList[i] == NULL)
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continue;
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Decoding = true;
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if(DecoderList[i])
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DecoderList[i]->Lock();
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if(DecoderList[i])
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DecoderList[i]->Decode();
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if(DecoderList[i])
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DecoderList[i]->Unlock();
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}
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Decoding = false;
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}
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for(u32 i = 0; i < MAX_DECODERS; ++i)
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voiceList[i]->stop();
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AXRegisterFrameCallback(NULL);
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AXQuit();
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for(u32 i = 0; i < MAX_DECODERS; ++i)
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{
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delete voiceList[i];
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voiceList[i] = NULL;
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}
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}
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void SoundHandler::axFrameCallback(void)
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{
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for (u32 i = 0; i < MAX_DECODERS; i++)
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{
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Voice *voice = handlerInstance->getVoice(i);
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switch (voice->getState())
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{
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default:
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case Voice::STATE_STOPPED:
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break;
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case Voice::STATE_START: {
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SoundDecoder * decoder = handlerInstance->getDecoder(i);
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decoder->Lock();
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if(decoder->IsBufferReady())
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{
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const u8 *buffer = decoder->GetBuffer();
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const u32 bufferSize = decoder->GetBufferSize();
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decoder->LoadNext();
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const u8 *nextBuffer = NULL;
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u32 nextBufferSize = 0;
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if(decoder->IsBufferReady())
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{
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nextBuffer = decoder->GetBuffer();
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nextBufferSize = decoder->GetBufferSize();
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decoder->LoadNext();
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}
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voice->play(buffer, bufferSize, nextBuffer, nextBufferSize, decoder->GetFormat() & 0xff, decoder->GetSampleRate());
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handlerInstance->ThreadSignal();
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voice->setState(Voice::STATE_PLAYING);
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}
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decoder->Unlock();
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break;
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}
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case Voice::STATE_PLAYING:
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if(voice->getInternState() == 1)
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{
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if(voice->isBufferSwitched())
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{
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SoundDecoder * decoder = handlerInstance->getDecoder(i);
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decoder->Lock();
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if(decoder->IsBufferReady())
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{
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voice->setNextBuffer(decoder->GetBuffer(), decoder->GetBufferSize());
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decoder->LoadNext();
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handlerInstance->ThreadSignal();
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}
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else if(decoder->IsEOF())
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{
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voice->setState(Voice::STATE_STOP);
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}
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decoder->Unlock();
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}
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}
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else
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{
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voice->setState(Voice::STATE_STOPPED);
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}
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break;
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case Voice::STATE_STOP:
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if(voice->getInternState() != 0)
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voice->stop();
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voice->setState(Voice::STATE_STOPPED);
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break;
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}
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}
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}
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