mirror of https://github.com/axmolengine/axmol.git
612 lines
16 KiB
C++
612 lines
16 KiB
C++
/*
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* cocos2d-x http://www.cocos2d-x.org
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*
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* Copyright (c) 2010-2011 - cocos2d-x community
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*
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* Portions Copyright (c) Microsoft Open Technologies, Inc.
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* All Rights Reserved
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and limitations under the License.
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*/
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#include "Audio.h"
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#include "MediaStreamer.h"
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//#include "CCCommon.h"
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inline void ThrowIfFailed(HRESULT hr)
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{
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if (FAILED(hr))
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{
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// Set a breakpoint on this line to catch DX API errors.
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throw Platform::Exception::CreateException(hr);
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}
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}
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void AudioEngineCallbacks::Initialize(Audio *audio)
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{
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m_audio = audio;
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}
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// Called in the event of a critical system error which requires XAudio2
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// to be closed down and restarted. The error code is given in error.
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void _stdcall AudioEngineCallbacks::OnCriticalError(HRESULT Error)
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{
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UNUSED_PARAM(Error);
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m_audio->SetEngineExperiencedCriticalError();
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};
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Audio::Audio() :
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m_backgroundID(0),
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m_soundEffctVolume(1.0f),
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m_backgroundMusicVolume(1.0f)
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{
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}
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void Audio::Initialize()
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{
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m_engineExperiencedCriticalError = false;
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m_musicEngine = nullptr;
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m_soundEffectEngine = nullptr;
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m_musicMasteringVoice = nullptr;
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m_soundEffectMasteringVoice = nullptr;
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}
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void Audio::CreateResources()
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{
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try
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{
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ThrowIfFailed(
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XAudio2Create(&m_musicEngine)
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);
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#if defined(_DEBUG)
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XAUDIO2_DEBUG_CONFIGURATION debugConfig = {0};
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debugConfig.BreakMask = XAUDIO2_LOG_ERRORS;
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debugConfig.TraceMask = XAUDIO2_LOG_ERRORS;
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m_musicEngine->SetDebugConfiguration(&debugConfig);
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#endif
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m_musicEngineCallback.Initialize(this);
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m_musicEngine->RegisterForCallbacks(&m_musicEngineCallback);
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// This sample plays the equivalent of background music, which we tag on the mastering voice as AudioCategory_GameMedia.
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// In ordinary usage, if we were playing the music track with no effects, we could route it entirely through
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// Media Foundation. Here we are using XAudio2 to apply a reverb effect to the music, so we use Media Foundation to
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// decode the data then we feed it through the XAudio2 pipeline as a separate Mastering Voice, so that we can tag it
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// as Game Media.
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// We default the mastering voice to 2 channels to simplify the reverb logic.
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ThrowIfFailed(
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m_musicEngine->CreateMasteringVoice(&m_musicMasteringVoice, XAUDIO2_DEFAULT_CHANNELS, XAUDIO2_DEFAULT_SAMPLERATE, 0, nullptr, nullptr, AudioCategory_GameMedia)
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);
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// Create a separate engine and mastering voice for sound effects in the sample
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// Games will use many voices in a complex graph for audio, mixing all effects down to a
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// single mastering voice.
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// We are creating an entirely new engine instance and mastering voice in order to tag
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// our sound effects with the audio category AudioCategory_GameEffects.
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ThrowIfFailed(
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XAudio2Create(&m_soundEffectEngine)
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);
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m_soundEffectEngineCallback.Initialize(this);
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m_soundEffectEngine->RegisterForCallbacks(&m_soundEffectEngineCallback);
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// We default the mastering voice to 2 channels to simplify the reverb logic.
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ThrowIfFailed(
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m_soundEffectEngine->CreateMasteringVoice(&m_soundEffectMasteringVoice, XAUDIO2_DEFAULT_CHANNELS, XAUDIO2_DEFAULT_SAMPLERATE, 0, nullptr, nullptr, AudioCategory_GameEffects)
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);
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}
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catch (...)
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{
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m_engineExperiencedCriticalError = true;
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}
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}
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unsigned int Audio::Hash(const char *key)
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{
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unsigned int len = strlen(key);
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const char *end=key+len;
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unsigned int hash;
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for (hash = 0; key < end; key++)
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{
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hash *= 16777619;
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hash ^= (unsigned int) (unsigned char) toupper(*key);
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}
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return (hash);
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}
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void Audio::ReleaseResources()
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{
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if (m_musicMasteringVoice != nullptr)
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{
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m_musicMasteringVoice->DestroyVoice();
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m_musicMasteringVoice = nullptr;
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}
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if (m_soundEffectMasteringVoice != nullptr)
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{
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m_soundEffectMasteringVoice->DestroyVoice();
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m_soundEffectMasteringVoice = nullptr;
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}
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EffectList::iterator EffectIter = m_soundEffects.begin();
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for (; EffectIter != m_soundEffects.end(); EffectIter++)
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{
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if (EffectIter->second.m_soundEffectSourceVoice != nullptr)
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{
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EffectIter->second.m_soundEffectSourceVoice->DestroyVoice();
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EffectIter->second.m_soundEffectSourceVoice = nullptr;
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}
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}
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m_soundEffects.clear();
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m_musicEngine = nullptr;
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m_soundEffectEngine = nullptr;
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}
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void Audio::Start()
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{
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if (m_engineExperiencedCriticalError)
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{
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return;
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}
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if (! m_backgroundFile.empty())
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PlayBackgroundMusic(m_backgroundFile.c_str(), m_backgroundLoop);
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}
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// This sample processes audio buffers during the render cycle of the application.
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// As long as the sample maintains a high-enough frame rate, this approach should
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// not glitch audio. In game code, it is best for audio buffers to be processed
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// on a separate thread that is not synced to the main render loop of the game.
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void Audio::Render()
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{
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if (m_engineExperiencedCriticalError)
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{
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ReleaseResources();
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Initialize();
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CreateResources();
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Start();
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if (m_engineExperiencedCriticalError)
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{
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return;
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}
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}
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}
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void Audio::PlayBackgroundMusic(const char* pszFilePath, bool bLoop)
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{
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m_backgroundFile = pszFilePath;
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m_backgroundLoop = bLoop;
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if (m_engineExperiencedCriticalError) {
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return;
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}
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StopBackgroundMusic(true);
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PlaySoundEffect(pszFilePath, bLoop, m_backgroundID, true);
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}
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void Audio::StopBackgroundMusic(bool bReleaseData)
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{
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if (m_engineExperiencedCriticalError) {
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return;
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}
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StopSoundEffect(m_backgroundID);
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if (bReleaseData){
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UnloadSoundEffect(m_backgroundID);
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RemoveFromList(m_backgroundID);
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}
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}
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void Audio::PauseBackgroundMusic()
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{
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if (m_engineExperiencedCriticalError) {
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return;
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}
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PauseSoundEffect(m_backgroundID);
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}
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void Audio::ResumeBackgroundMusic()
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{
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if (m_engineExperiencedCriticalError) {
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return;
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}
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ResumeSoundEffect(m_backgroundID);
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}
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void Audio::RewindBackgroundMusic()
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{
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if (m_engineExperiencedCriticalError) {
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return;
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}
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RewindSoundEffect(m_backgroundID);
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}
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bool Audio::IsBackgroundMusicPlaying()
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{
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return IsSoundEffectStarted(m_backgroundID);
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}
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void Audio::SetBackgroundVolume(float volume)
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{
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m_backgroundMusicVolume = volume;
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if (m_engineExperiencedCriticalError) {
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return;
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}
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if (m_soundEffects.end() != m_soundEffects.find(m_backgroundID))
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{
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m_soundEffects[m_backgroundID].m_soundEffectSourceVoice->SetVolume(volume);
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}
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}
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float Audio::GetBackgroundVolume()
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{
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return m_backgroundMusicVolume;
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}
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void Audio::SetSoundEffectVolume(float volume)
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{
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m_soundEffctVolume = volume;
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if (m_engineExperiencedCriticalError) {
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return;
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}
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EffectList::iterator iter;
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for (iter = m_soundEffects.begin(); iter != m_soundEffects.end(); iter++)
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{
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if (iter->first != m_backgroundID)
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iter->second.m_soundEffectSourceVoice->SetVolume(m_soundEffctVolume);
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}
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}
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float Audio::GetSoundEffectVolume()
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{
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return m_soundEffctVolume;
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}
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void Audio::PlaySoundEffect(const char* pszFilePath, bool bLoop, unsigned int& sound, bool isMusic)
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{
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sound = Hash(pszFilePath);
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if (m_soundEffects.end() == m_soundEffects.find(sound))
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{
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PreloadSoundEffect(pszFilePath, isMusic);
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}
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if (m_soundEffects.end() == m_soundEffects.find(sound))
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return;
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m_soundEffects[sound].m_audioBuffer.LoopCount = bLoop ? XAUDIO2_LOOP_INFINITE : 0;
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PlaySoundEffect(sound);
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}
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void Audio::PlaySoundEffect(unsigned int sound)
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{
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if (m_engineExperiencedCriticalError) {
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return;
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}
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if (m_soundEffects.end() == m_soundEffects.find(sound))
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return;
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StopSoundEffect(sound);
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ThrowIfFailed(
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m_soundEffects[sound].m_soundEffectSourceVoice->SubmitSourceBuffer(&m_soundEffects[sound].m_audioBuffer)
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);
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if (m_engineExperiencedCriticalError) {
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// If there's an error, then we'll recreate the engine on the next render pass
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return;
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}
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SoundEffectData* soundEffect = &m_soundEffects[sound];
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HRESULT hr = soundEffect->m_soundEffectSourceVoice->Start();
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if FAILED(hr)
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{
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m_engineExperiencedCriticalError = true;
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return;
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}
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m_soundEffects[sound].m_soundEffectStarted = true;
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}
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void Audio::StopSoundEffect(unsigned int sound)
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{
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if (m_engineExperiencedCriticalError) {
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return;
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}
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if (m_soundEffects.end() == m_soundEffects.find(sound))
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return;
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HRESULT hr = m_soundEffects[sound].m_soundEffectSourceVoice->Stop();
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HRESULT hr1 = m_soundEffects[sound].m_soundEffectSourceVoice->FlushSourceBuffers();
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if (FAILED(hr) || FAILED(hr1))
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{
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// If there's an error, then we'll recreate the engine on the next render pass
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m_engineExperiencedCriticalError = true;
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return;
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}
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m_soundEffects[sound].m_soundEffectStarted = false;
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}
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void Audio::PauseSoundEffect(unsigned int sound)
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{
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if (m_engineExperiencedCriticalError) {
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return;
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}
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if (m_soundEffects.end() == m_soundEffects.find(sound))
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return;
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HRESULT hr = m_soundEffects[sound].m_soundEffectSourceVoice->Stop();
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if FAILED(hr)
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{
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// If there's an error, then we'll recreate the engine on the next render pass
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m_engineExperiencedCriticalError = true;
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return;
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}
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}
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void Audio::ResumeSoundEffect(unsigned int sound)
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{
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if (m_engineExperiencedCriticalError) {
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return;
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}
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if (m_soundEffects.end() == m_soundEffects.find(sound))
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return;
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HRESULT hr = m_soundEffects[sound].m_soundEffectSourceVoice->Start();
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if FAILED(hr)
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{
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// If there's an error, then we'll recreate the engine on the next render pass
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m_engineExperiencedCriticalError = true;
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return;
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}
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}
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void Audio::RewindSoundEffect(unsigned int sound)
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{
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if (m_engineExperiencedCriticalError) {
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return;
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}
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if (m_soundEffects.end() == m_soundEffects.find(sound))
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return;
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StopSoundEffect(sound);
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PlaySoundEffect(sound);
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}
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void Audio::PauseAllSoundEffects()
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{
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if (m_engineExperiencedCriticalError) {
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return;
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}
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EffectList::iterator iter;
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for (iter = m_soundEffects.begin(); iter != m_soundEffects.end(); iter++)
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{
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if (iter->first != m_backgroundID)
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PauseSoundEffect(iter->first);
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}
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}
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void Audio::ResumeAllSoundEffects()
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{
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if (m_engineExperiencedCriticalError) {
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return;
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}
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EffectList::iterator iter;
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for (iter = m_soundEffects.begin(); iter != m_soundEffects.end(); iter++)
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{
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if (iter->first != m_backgroundID)
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ResumeSoundEffect(iter->first);
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}
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}
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void Audio::StopAllSoundEffects(bool bReleaseData)
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{
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if (m_engineExperiencedCriticalError) {
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return;
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}
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EffectList::iterator iter;
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for (iter = m_soundEffects.begin(); iter != m_soundEffects.end(); iter++)
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{
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if (iter->first != m_backgroundID){
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StopSoundEffect(iter->first);
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if (bReleaseData)
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{
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UnloadSoundEffect(iter->first);
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}
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}
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}
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if (bReleaseData)
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{
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for (iter = m_soundEffects.begin(); iter != m_soundEffects.end();)
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{
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if (iter->first != m_backgroundID){
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m_soundEffects.erase(iter++);
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}
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else
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{
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iter++;
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}
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}
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}
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}
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bool Audio::IsSoundEffectStarted(unsigned int sound)
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{
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if (m_soundEffects.end() == m_soundEffects.find(sound))
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return false;
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return m_soundEffects[sound].m_soundEffectStarted;
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}
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std::wstring CCUtf8ToUnicode(const char * pszUtf8Str)
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{
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std::wstring ret;
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do
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{
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if (! pszUtf8Str) break;
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size_t len = strlen(pszUtf8Str);
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if (len <= 0) break;
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++len;
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wchar_t * pwszStr = new wchar_t[len];
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if (! pwszStr) break;
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pwszStr[len - 1] = 0;
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MultiByteToWideChar(CP_UTF8, 0, pszUtf8Str, len, pwszStr, len);
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ret = pwszStr;
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if(pwszStr) {
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delete[] (pwszStr);
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(pwszStr) = 0;
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}
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} while (0);
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return ret;
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}
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std::string CCUnicodeToUtf8(const wchar_t* pwszStr)
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{
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std::string ret;
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do
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{
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if(! pwszStr) break;
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size_t len = wcslen(pwszStr);
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if (len <= 0) break;
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char * pszUtf8Str = new char[len*3 + 1];
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WideCharToMultiByte(CP_UTF8, 0, pwszStr, len+1, pszUtf8Str, len*3 + 1, 0, 0);
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ret = pszUtf8Str;
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if(pszUtf8Str) {
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delete[] (pszUtf8Str);
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(pszUtf8Str) = 0;
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}
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}while(0);
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return ret;
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}
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void Audio::PreloadSoundEffect(const char* pszFilePath, bool isMusic)
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{
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if (m_engineExperiencedCriticalError) {
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return;
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}
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int sound = Hash(pszFilePath);
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MediaStreamer mediaStreamer;
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mediaStreamer.Initialize(CCUtf8ToUnicode(pszFilePath).c_str());
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m_soundEffects[sound].m_soundID = sound;
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uint32 bufferLength = mediaStreamer.GetMaxStreamLengthInBytes();
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m_soundEffects[sound].m_soundEffectBufferData = new byte[bufferLength];
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mediaStreamer.ReadAll(m_soundEffects[sound].m_soundEffectBufferData, bufferLength, &m_soundEffects[sound].m_soundEffectBufferLength);
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if (isMusic)
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{
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XAUDIO2_SEND_DESCRIPTOR descriptors[1];
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descriptors[0].pOutputVoice = m_musicMasteringVoice;
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descriptors[0].Flags = 0;
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XAUDIO2_VOICE_SENDS sends = {0};
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sends.SendCount = 1;
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sends.pSends = descriptors;
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ThrowIfFailed(
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m_musicEngine->CreateSourceVoice(&m_soundEffects[sound].m_soundEffectSourceVoice,
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&(mediaStreamer.GetOutputWaveFormatEx()), 0, 1.0f, &m_voiceContext, &sends)
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);
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//fix bug: set a initial volume
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m_soundEffects[sound].m_soundEffectSourceVoice->SetVolume(m_backgroundMusicVolume);
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} else
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{
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XAUDIO2_SEND_DESCRIPTOR descriptors[1];
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descriptors[0].pOutputVoice = m_soundEffectMasteringVoice;
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descriptors[0].Flags = 0;
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XAUDIO2_VOICE_SENDS sends = {0};
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sends.SendCount = 1;
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sends.pSends = descriptors;
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ThrowIfFailed(
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m_soundEffectEngine->CreateSourceVoice(&m_soundEffects[sound].m_soundEffectSourceVoice,
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&(mediaStreamer.GetOutputWaveFormatEx()), 0, 1.0f, &m_voiceContext, &sends, nullptr)
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);
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//fix bug: set a initial volume
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m_soundEffects[sound].m_soundEffectSourceVoice->SetVolume(m_soundEffctVolume);
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}
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m_soundEffects[sound].m_soundEffectSampleRate = mediaStreamer.GetOutputWaveFormatEx().nSamplesPerSec;
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// Queue in-memory buffer for playback
|
|
ZeroMemory(&m_soundEffects[sound].m_audioBuffer, sizeof(m_soundEffects[sound].m_audioBuffer));
|
|
|
|
m_soundEffects[sound].m_audioBuffer.AudioBytes = m_soundEffects[sound].m_soundEffectBufferLength;
|
|
m_soundEffects[sound].m_audioBuffer.pAudioData = m_soundEffects[sound].m_soundEffectBufferData;
|
|
m_soundEffects[sound].m_audioBuffer.pContext = &m_soundEffects[sound];
|
|
m_soundEffects[sound].m_audioBuffer.Flags = XAUDIO2_END_OF_STREAM;
|
|
m_soundEffects[sound].m_audioBuffer.LoopCount = 0;
|
|
}
|
|
|
|
void Audio::UnloadSoundEffect(const char* pszFilePath)
|
|
{
|
|
int sound = Hash(pszFilePath);
|
|
|
|
UnloadSoundEffect(sound);
|
|
|
|
RemoveFromList(sound);
|
|
}
|
|
|
|
void Audio::UnloadSoundEffect(unsigned int sound)
|
|
{
|
|
if (m_engineExperiencedCriticalError) {
|
|
return;
|
|
}
|
|
|
|
if (m_soundEffects.end() == m_soundEffects.find(sound))
|
|
return;
|
|
|
|
m_soundEffects[sound].m_soundEffectSourceVoice->DestroyVoice();
|
|
|
|
if(m_soundEffects[sound].m_soundEffectBufferData)
|
|
delete [] m_soundEffects[sound].m_soundEffectBufferData;
|
|
|
|
m_soundEffects[sound].m_soundEffectBufferData = nullptr;
|
|
m_soundEffects[sound].m_soundEffectSourceVoice = nullptr;
|
|
m_soundEffects[sound].m_soundEffectStarted = false;
|
|
ZeroMemory(&m_soundEffects[sound].m_audioBuffer, sizeof(m_soundEffects[sound].m_audioBuffer));
|
|
}
|
|
|
|
void Audio::RemoveFromList( unsigned int sound )
|
|
{
|
|
m_soundEffects.erase(sound);
|
|
}
|
|
|
|
|