mirror of
https://github.com/Fledge68/WiiFlow_Lite.git
synced 2024-12-17 23:41:53 +01:00
500 lines
8.8 KiB
C++
500 lines
8.8 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 <string.h>
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#include "SoundHandler.hpp"
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#include "gui_sound.h"
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#include "musicplayer.h"
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#include "WavDecoder.hpp"
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#include "loader/sys.h"
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#define MAX_SND_VOICES 16
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using namespace std;
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static bool VoiceUsed[MAX_SND_VOICES] =
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{
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true, false, false, false, false, false,
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false, false, false, false, false, false,
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false, false, false, false
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};
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static inline int GetFirstUnusedVoice()
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{
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for(int i = 1; i < MAX_SND_VOICES; i++)
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{
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if(VoiceUsed[i] == false)
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return i;
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}
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gprintf("ALL VOICES USED UP!!\n");
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return -1;
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}
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extern "C" void SoundCallback(s32 voice)
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{
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SoundDecoder * decoder = SoundHandler::Instance()->Decoder(voice);
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if(!decoder)
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return;
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if(decoder->IsBufferReady())
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{
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if(ASND_AddVoice(voice, decoder->GetBuffer(), decoder->GetBufferSize()) == SND_OK)
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{
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decoder->LoadNext();
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SoundHandler::Instance()->ThreadSignal();
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}
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}
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else if(decoder->IsEOF())
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ASND_StopVoice(voice);
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else
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SoundHandler::Instance()->ThreadSignal();
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}
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GuiSound::GuiSound()
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{
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voice = -1;
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Init();
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}
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GuiSound::GuiSound(string filepath, int v)
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{
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voice = v;
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Init();
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Load(filepath.c_str());
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}
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GuiSound::GuiSound(const u8 * snd, u32 len, string name, bool isallocated, int v)
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{
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voice = v;
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Init();
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Load(snd, len, isallocated);
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this->filepath = name;
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}
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GuiSound::GuiSound(GuiSound *g)
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{
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voice = -1;
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Init();
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if (g == NULL)
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return;
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if (g->sound != NULL)
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{
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u8 * snd = (u8 *)MEM2_alloc(g->length);
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memcpy(snd, g->sound, length);
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Load(snd, g->length, true);
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}
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else
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Load(g->filepath.c_str());
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}
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GuiSound::~GuiSound()
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{
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FreeMemory();
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VoiceUsed[voice] = false;
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}
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void GuiSound::Init()
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{
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sound = NULL;
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length = 0;
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if (voice == -1)
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voice = GetFirstUnusedVoice();
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if(voice > 0)
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VoiceUsed[voice] = true;
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volume = 255;
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SoundEffectLength = 0;
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loop = false;
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allocated = false;
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}
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void GuiSound::FreeMemory()
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{
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Stop();
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// Prevent reinitialization of SoundHandler since we're exiting
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if (!Sys_Exiting())
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SoundHandler::Instance()->RemoveDecoder(voice);
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if(allocated)
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{
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MEM2_free(sound);
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allocated = false;
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}
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filepath = "";
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SoundEffectLength = 0;
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}
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bool GuiSound::Load(const char * filepath)
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{
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FreeMemory();
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if(!filepath || filepath[strlen(filepath)-1] == '/' || strlen(filepath) < 4)
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return false;
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FILE * f = fopen(filepath, "rb");
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if(!f)
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{
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gprintf("Failed to load file %s!!\n", filepath);
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return false;
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}
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u32 magic;
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fread(&magic, 1, 4, f);
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fclose(f);
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SoundHandler::Instance()->AddDecoder(voice, filepath);
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gprintf("Loading %s using voice %d\n", filepath, voice);
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SoundDecoder * decoder = SoundHandler::Instance()->Decoder(voice);
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if(!decoder)
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{
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gprintf("No Decoder!!!\n");
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return false;
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}
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if(!decoder->IsBufferReady())
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{
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gprintf("Buffer not ready!!n");
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SoundHandler::Instance()->RemoveDecoder(voice);
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return false;
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}
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this->filepath = filepath;
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SetLoop(loop);
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return true;
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}
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bool GuiSound::Load(const u8 * snd, u32 len, bool isallocated)
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{
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FreeMemory();
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this->voice = voice;
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if(!snd)
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return false;
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if(!isallocated && *((u32 *) snd) == 'RIFF')
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return LoadSoundEffect(snd, len);
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if(*((u32 *) snd) == 'IMD5')
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UncompressSoundbin(snd, len, isallocated);
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else
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{
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sound = (u8 *) snd;
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length = len;
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allocated = isallocated;
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}
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SoundHandler::Instance()->AddDecoder(this->voice, sound, length);
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SoundDecoder * decoder = SoundHandler::Instance()->Decoder(voice);
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if(!decoder)
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return false;
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if(!decoder->IsBufferReady())
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{
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SoundHandler::Instance()->RemoveDecoder(voice);
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return false;
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}
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SetLoop(loop);
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return true;
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}
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bool GuiSound::LoadSoundEffect(const u8 * snd, u32 len)
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{
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FreeMemory();
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WavDecoder decoder(snd, len);
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decoder.Rewind();
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u32 done = 0;
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sound = (u8 *)MEM2_alloc(4096);
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memset(sound, 0, 4096);
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while(1)
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{
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u8 * tmpsnd = (u8 *)MEM2_realloc(sound, done+4096);
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if(!tmpsnd)
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{
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MEM2_free(sound);
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return false;
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}
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sound = tmpsnd;
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int read = decoder.Read(sound+done, 4096, done);
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if(read <= 0)
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break;
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done += read;
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}
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sound = (u8 *)MEM2_realloc(sound, done);
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SoundEffectLength = done;
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allocated = true;
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return true;
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}
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void GuiSound::Play(int vol, bool restart)
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{
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if(SoundEffectLength > 0)
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{
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ASND_StopVoice(voice);
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ASND_SetVoice(voice, VOICE_MONO_16BIT, 22050, 0, sound, SoundEffectLength, vol, vol, NULL);
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return;
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}
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if(IsPlaying() && !restart)
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return;
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if(voice < 0 || voice >= 16)
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return;
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SoundDecoder * decoder = SoundHandler::Instance()->Decoder(voice);
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if(!decoder)
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return;
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ASND_StopVoice(voice);
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if(decoder->IsEOF())
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{
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decoder->ClearBuffer();
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decoder->Rewind();
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decoder->Decode();
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}
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u8 * curbuffer = decoder->GetBuffer();
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int bufsize = decoder->GetBufferSize();
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decoder->LoadNext();
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SoundHandler::Instance()->ThreadSignal();
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ASND_SetVoice(voice, decoder->GetFormat(), decoder->GetSampleRate(), 0, curbuffer, bufsize, vol, vol, SoundCallback);
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}
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void GuiSound::Play()
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{
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Play(volume);
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}
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void GuiSound::Stop()
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{
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if (!IsPlaying()) return;
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if(voice < 0 || voice >= 16)
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return;
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ASND_StopVoice(voice);
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SoundDecoder * decoder = SoundHandler::Instance()->Decoder(voice);
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if(!decoder)
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return;
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decoder->ClearBuffer();
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Rewind();
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SoundHandler::Instance()->ThreadSignal();
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}
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void GuiSound::Pause()
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{
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if(voice < 0 || voice >= 16)
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return;
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ASND_StopVoice(voice);
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}
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void GuiSound::Resume()
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{
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Play();
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}
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bool GuiSound::IsPlaying()
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{
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if(voice < 0 || voice >= 16)
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return false;
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int result = ASND_StatusVoice(voice);
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if(result == SND_WORKING || result == SND_WAITING)
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return true;
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return false;
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}
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int GuiSound::GetVolume()
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{
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return volume;
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}
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void GuiSound::SetVolume(int vol)
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{
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if(voice < 0 || voice >= 16)
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return;
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if(vol < 0)
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return;
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volume = vol;
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ASND_ChangeVolumeVoice(voice, volume, volume);
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}
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void GuiSound::SetLoop(u8 l)
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{
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loop = l;
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SoundDecoder * decoder = SoundHandler::Instance()->Decoder(voice);
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if(!decoder)
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return;
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decoder->SetLoop(l == 1);
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}
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void GuiSound::Rewind()
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{
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SoundDecoder * decoder = SoundHandler::Instance()->Decoder(voice);
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if(!decoder)
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return;
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decoder->Rewind();
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}
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struct _LZ77Info
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{
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u16 length : 4;
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u16 offset : 12;
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} __attribute__((packed));
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typedef struct _LZ77Info LZ77Info;
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u8 * uncompressLZ77(const u8 *inBuf, u32 inLength, u32 * size)
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{
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u8 *buffer = NULL;
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if (inLength <= 0x8 || *((const u32 *)inBuf) != 0x4C5A3737 /*"LZ77"*/ || inBuf[4] != 0x10)
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return NULL;
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u32 uncSize = le32(((const u32 *)inBuf)[1] << 8);
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if(uncSize <= 0) return 0;
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const u8 *inBufEnd = inBuf + inLength;
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inBuf += 8;
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buffer = (u8 *)MEM2_alloc(uncSize);
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if (!buffer)
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return buffer;
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u8 *bufCur = buffer;
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u8 *bufEnd = buffer + uncSize;
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while (bufCur < bufEnd && inBuf < inBufEnd)
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{
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u8 flags = *inBuf;
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++inBuf;
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int i = 0;
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for (i = 0; i < 8 && bufCur < bufEnd && inBuf < inBufEnd; ++i)
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{
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if ((flags & 0x80) != 0)
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{
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const LZ77Info * info = (const LZ77Info *)inBuf;
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inBuf += sizeof (LZ77Info);
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int length = info->length + 3;
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if (bufCur - info->offset - 1 < buffer || bufCur + length > bufEnd)
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return buffer;
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memcpy(bufCur, bufCur - info->offset - 1, length);
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bufCur += length;
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}
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else
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{
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*bufCur = *inBuf;
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++inBuf;
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++bufCur;
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}
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flags <<= 1;
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}
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}
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*size = uncSize;
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return buffer;
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}
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void GuiSound::UncompressSoundbin(const u8 * snd, u32 len, bool isallocated)
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{
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const u8 * file = snd+32;
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length = len-32;
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if (length <= 0)
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return;
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if(*((u32 *) file) == 'LZ77')
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{
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u32 size = 0;
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sound = uncompressLZ77(file, length, &size);
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if (!sound)
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{
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length = 0;
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return;
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}
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length = size;
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}
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else
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{
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sound = (u8 *)MEM2_alloc(length);
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if (!sound)
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{
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length = 0;
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return;
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}
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memcpy(sound, file, length);
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}
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if(isallocated)
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{
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void *p = (void *)snd;
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MEM2_free(p);
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}
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allocated = true;
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}
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void soundInit(void)
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{
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ASND_Init();
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ASND_Pause(0);
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}
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void soundDeinit(void)
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{
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ASND_Pause(1);
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ASND_End();
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}
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