552 lines
11 KiB
C++
552 lines
11 KiB
C++
#include "..\e2dtool.h"
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#include "..\e2dmodule.h"
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#ifndef SAFE_DELETE
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#define SAFE_DELETE(p) { if (p) { delete (p); (p)=nullptr; } }
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#endif
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#ifndef SAFE_DELETE_ARRAY
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#define SAFE_DELETE_ARRAY(p) { if (p) { delete[] (p); (p)=nullptr; } }
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#endif
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inline bool TraceError(wchar_t* prompt)
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{
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WARN("Music error: %s failed!", prompt);
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return false;
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}
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inline bool TraceError(wchar_t* prompt, HRESULT hr)
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{
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WARN("Music error: %s (%#X)", prompt, hr);
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return false;
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}
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e2d::Music::Music()
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: opened_(false)
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, wfx_(nullptr)
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, hmmio_(nullptr)
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, buffer_(nullptr)
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, wave_data_(nullptr)
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, size_(0)
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, voice_(nullptr)
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, callback_()
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{
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}
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e2d::Music::Music(const e2d::String & file_path)
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: opened_(false)
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, wfx_(nullptr)
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, hmmio_(nullptr)
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, buffer_(nullptr)
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, wave_data_(nullptr)
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, size_(0)
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, voice_(nullptr)
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, callback_()
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{
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this->Open(file_path);
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}
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e2d::Music::Music(const Resource& res)
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: opened_(false)
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, wfx_(nullptr)
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, hmmio_(nullptr)
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, buffer_(nullptr)
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, wave_data_(nullptr)
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, size_(0)
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, voice_(nullptr)
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, callback_()
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{
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this->Open(res);
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}
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e2d::Music::~Music()
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{
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Close();
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}
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bool e2d::Music::Open(const e2d::String & file_path)
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{
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if (opened_)
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{
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Close();
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}
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if (file_path.IsEmpty())
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{
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WARN("Music::Open error: Invalid file name.");
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return false;
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}
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File music_file;
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if (!music_file.Open(file_name))
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{
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WARN("Music::Open error: File not found.");
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return false;
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}
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// 用户输入的路径不一定是完整路径，因为用户可能通过 File::AddSearchPath 添加
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// 默认搜索路径，所以需要通过 File::GetPath 获取完整路径
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String music_file_path = music_file.GetPath();
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// 定位 wave 文件
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wchar_t pFilePath[MAX_PATH];
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if (!FindMediaFileCch(pFilePath, MAX_PATH, (const wchar_t *)music_file_path))
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{
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WARN("Failed to Find media file: %s", pFilePath);
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return false;
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}
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hmmio_ = mmioOpen(pFilePath, nullptr, MMIO_ALLOCBUF | MMIO_READ);
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if (nullptr == hmmio_)
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{
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return TraceError(L"mmioOpen");
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}
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if (!ReadMMIO())
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{
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// 读取非 wave 文件时 ReadMMIO 调用失败
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mmioClose(hmmio_, 0);
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return TraceError(L"ReadMMIO");
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}
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if (!ResetFile())
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return TraceError(L"ResetFile");
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// 重置文件后，wave 文件的大小是 ck_.cksize
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size_ = ck_.cksize;
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// 将样本数据读取到内存中
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wave_data_ = new BYTE[size_];
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if (!Read(wave_data_, size_))
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{
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TraceError(L"Failed to read WAV data");
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SAFE_DELETE_ARRAY(wave_data_);
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return false;
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}
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// 创建音源
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auto xAudio2 = Audio::GetInstance()->GetXAudio2();
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HRESULT hr = xAudio2->CreateSourceVoice(&voice_, wfx_, 0, XAUDIO2_DEFAULT_FREQ_RATIO, &callback_);
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if (FAILED(hr))
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{
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TraceError(L"Create source voice error", hr);
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SAFE_DELETE_ARRAY(wave_data_);
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return false;
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}
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opened_ = true;
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return true;
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}
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bool e2d::Music::Open(const Resource& res)
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{
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if (opened_)
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{
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Close();
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}
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HRSRC hResInfo;
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HGLOBAL hResData;
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DWORD dwSize;
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void* pvRes;
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if (nullptr == (hResInfo = FindResourceW(HINST_THISCOMPONENT, MAKEINTRESOURCE(res.id), (LPCWSTR)res.type)))
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return TraceError(L"FindResource");
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if (nullptr == (hResData = LoadResource(HINST_THISCOMPONENT, hResInfo)))
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return TraceError(L"LoadResource");
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if (0 == (dwSize = SizeofResource(HINST_THISCOMPONENT, hResInfo)))
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return TraceError(L"SizeofResource");
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if (nullptr == (pvRes = LockResource(hResData)))
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return TraceError(L"LockResource");
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buffer_ = new CHAR[dwSize];
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memcpy(buffer_, pvRes, dwSize);
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MMIOINFO mmioInfo;
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ZeroMemory(&mmioInfo, sizeof(mmioInfo));
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mmioInfo.fccIOProc = FOURCC_MEM;
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mmioInfo.cchBuffer = dwSize;
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mmioInfo.pchBuffer = (CHAR*)buffer_;
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hmmio_ = mmioOpen(nullptr, &mmioInfo, MMIO_ALLOCBUF | MMIO_READ);
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if (nullptr == hmmio_)
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{
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return TraceError(L"mmioOpen");
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}
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if (!ReadMMIO())
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{
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// 读取非 wave 文件时 ReadMMIO 调用失败
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mmioClose(hmmio_, 0);
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return TraceError(L"ReadMMIO");
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}
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if (!ResetFile())
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return TraceError(L"ResetFile");
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// 重置文件后，wave 文件的大小是 ck_.cksize
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size_ = ck_.cksize;
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// 将样本数据读取到内存中
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wave_data_ = new BYTE[size_];
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if (!Read(wave_data_, size_))
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{
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TraceError(L"Failed to read WAV data");
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SAFE_DELETE_ARRAY(wave_data_);
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return false;
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}
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// 创建音源
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auto xAudio2 = Audio::GetInstance()->GetXAudio2();
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HRESULT hr = xAudio2->CreateSourceVoice(&voice_, wfx_, 0, XAUDIO2_DEFAULT_FREQ_RATIO, &callback_);
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if (FAILED(hr))
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{
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TraceError(L"Create source voice error", hr);
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SAFE_DELETE_ARRAY(wave_data_);
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return false;
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}
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opened_ = true;
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return true;
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}
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bool e2d::Music::Play(int loop_count)
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{
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if (!opened_)
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{
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WARN("Music::Play Failed: Music must be opened first!");
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return false;
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}
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if (voice_ == nullptr)
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{
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WARN("Music::Play Failed: IXAudio2SourceVoice Null pointer exception!");
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return false;
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}
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XAUDIO2_VOICE_STATE state;
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voice_->GetState(&state);
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if (state.BuffersQueued)
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{
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Stop();
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}
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loop_count = std::min(loop_count, XAUDIO2_LOOP_INFINITE - 1);
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loop_count = (loop_count < 0) ? XAUDIO2_LOOP_INFINITE : loop_count;
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// 提交 wave 样本数据
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XAUDIO2_BUFFER buffer = { 0 };
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buffer.pAudioData = wave_data_;
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buffer.Flags = XAUDIO2_END_OF_STREAM;
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buffer.AudioBytes = size_;
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buffer.LoopCount = loop_count;
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HRESULT hr;
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if (FAILED(hr = voice_->SubmitSourceBuffer(&buffer)))
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{
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TraceError(L"Submitting source buffer error", hr);
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voice_->DestroyVoice();
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SAFE_DELETE_ARRAY(wave_data_);
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return false;
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}
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hr = voice_->Start(0);
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return SUCCEEDED(hr);
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}
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void e2d::Music::Pause()
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{
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if (voice_)
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{
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voice_->Stop();
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}
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}
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void e2d::Music::Resume()
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{
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if (voice_)
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{
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voice_->Start();
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}
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}
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void e2d::Music::Stop()
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{
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if (voice_)
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{
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if (SUCCEEDED(voice_->Stop()))
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{
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voice_->ExitLoop();
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voice_->FlushSourceBuffers();
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}
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}
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}
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void e2d::Music::Close()
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{
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if (voice_)
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{
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voice_->Stop();
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voice_->FlushSourceBuffers();
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voice_->DestroyVoice();
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voice_ = nullptr;
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}
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if (hmmio_ != nullptr)
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{
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mmioClose(hmmio_, 0);
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hmmio_ = nullptr;
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}
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SAFE_DELETE_ARRAY(buffer_);
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SAFE_DELETE_ARRAY(wave_data_);
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SAFE_DELETE_ARRAY(wfx_);
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opened_ = false;
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}
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bool e2d::Music::IsPlaying() const
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{
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if (opened_ && voice_)
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{
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XAUDIO2_VOICE_STATE state;
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voice_->GetState(&state);
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if (state.BuffersQueued)
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return true;
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}
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return false;
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}
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IXAudio2SourceVoice * e2d::Music::GetSourceVoice() const
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{
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return voice_;
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}
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bool e2d::Music::SetVolume(float volume)
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{
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if (voice_)
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{
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return SUCCEEDED(voice_->SetVolume(volume));
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}
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return false;
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}
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void e2d::Music::SetCallbackOnEnd(const Function & func)
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{
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callback_.SetCallbackOnStreamEnd(func);
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}
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void e2d::Music::SetCallbackOnLoopEnd(const Function & func)
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{
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callback_.SetCallbackOnLoopEnd(func);
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}
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bool e2d::Music::ReadMMIO()
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{
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MMCKINFO ckIn;
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PCMWAVEFORMAT pcmWaveFormat;
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memset(&ckIn, 0, sizeof(ckIn));
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wfx_ = nullptr;
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if ((0 != mmioDescend(hmmio_, &ck_riff_, nullptr, 0)))
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return TraceError(L"mmioDescend");
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// 确认文件是一个合法的 wave 文件
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if ((ck_riff_.ckid != FOURCC_RIFF) ||
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(ck_riff_.fccType != mmioFOURCC('W', 'A', 'V', 'E')))
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return TraceError(L"mmioFOURCC");
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// 在输入文件中查找 'fmt' 块
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ckIn.ckid = mmioFOURCC('f', 'm', 't', ' ');
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if (0 != mmioDescend(hmmio_, &ckIn, &ck_riff_, MMIO_FINDCHUNK))
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return TraceError(L"mmioDescend");
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// 'fmt' 块至少应和 PCMWAVEFORMAT 一样大
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if (ckIn.cksize < (LONG)sizeof(PCMWAVEFORMAT))
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return TraceError(L"sizeof(PCMWAVEFORMAT)");
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// 将 'fmt' 块读取到 pcmWaveFormat 中
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if (mmioRead(hmmio_, (HPSTR)&pcmWaveFormat,
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sizeof(pcmWaveFormat)) != sizeof(pcmWaveFormat))
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return TraceError(L"mmioRead");
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// 分配 WAVEFORMATEX，但如果它不是 PCM 格式，再读取一个 WORD 大小
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// 的数据，这个数据就是额外分配的大小
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if (pcmWaveFormat.wf.wFormatTag == WAVE_FORMAT_PCM)
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{
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wfx_ = (WAVEFORMATEX*) new CHAR[sizeof(WAVEFORMATEX)];
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// 拷贝数据
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memcpy(wfx_, &pcmWaveFormat, sizeof(pcmWaveFormat));
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wfx_->cbSize = 0;
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}
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else
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{
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// 读取额外数据的大小
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WORD cbExtraBytes = 0L;
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if (mmioRead(hmmio_, (CHAR*)&cbExtraBytes, sizeof(WORD)) != sizeof(WORD))
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return TraceError(L"mmioRead");
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wfx_ = (WAVEFORMATEX*) new CHAR[sizeof(WAVEFORMATEX) + cbExtraBytes];
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// 拷贝数据
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memcpy(wfx_, &pcmWaveFormat, sizeof(pcmWaveFormat));
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wfx_->cbSize = cbExtraBytes;
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// 读取额外数据
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if (mmioRead(hmmio_, (CHAR*)(((BYTE*)&(wfx_->cbSize)) + sizeof(WORD)),
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cbExtraBytes) != cbExtraBytes)
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{
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SAFE_DELETE(wfx_);
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return TraceError(L"mmioRead");
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}
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}
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if (0 != mmioAscend(hmmio_, &ckIn, 0))
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{
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SAFE_DELETE(wfx_);
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return TraceError(L"mmioAscend");
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}
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return true;
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}
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bool e2d::Music::ResetFile()
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{
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// Seek to the data
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if (-1 == mmioSeek(hmmio_, ck_riff_.dwDataOffset + sizeof(FOURCC),
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SEEK_SET))
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return TraceError(L"mmioSeek");
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// Search the input file for the 'data' chunk.
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ck_.ckid = mmioFOURCC('d', 'a', 't', 'a');
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if (0 != mmioDescend(hmmio_, &ck_, &ck_riff_, MMIO_FINDCHUNK))
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return TraceError(L"mmioDescend");
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return true;
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}
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bool e2d::Music::Read(BYTE* buffer, DWORD size_to_read)
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{
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MMIOINFO mmioinfoIn; // current status of hmmio_
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if (0 != mmioGetInfo(hmmio_, &mmioinfoIn, 0))
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return TraceError(L"mmioGetInfo");
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UINT cbDataIn = size_to_read;
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if (cbDataIn > ck_.cksize)
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cbDataIn = ck_.cksize;
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ck_.cksize -= cbDataIn;
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for (DWORD cT = 0; cT < cbDataIn; ++cT)
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{
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// Copy the bytes from the io to the buffer.
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if (mmioinfoIn.pchNext == mmioinfoIn.pchEndRead)
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{
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if (0 != mmioAdvance(hmmio_, &mmioinfoIn, MMIO_READ))
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return TraceError(L"mmioAdvance");
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if (mmioinfoIn.pchNext == mmioinfoIn.pchEndRead)
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return TraceError(L"mmioinfoIn.pchNext");
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}
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// Actual copy.
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*((BYTE*)buffer + cT) = *((BYTE*)mmioinfoIn.pchNext);
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++mmioinfoIn.pchNext;
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}
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if (0 != mmioSetInfo(hmmio_, &mmioinfoIn, 0))
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return TraceError(L"mmioSetInfo");
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return true;
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}
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bool e2d::Music::FindMediaFileCch(wchar_t* dest_path, int cch_dest, const wchar_t * file_name)
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{
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bool bFound = false;
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if (nullptr == file_name || nullptr == dest_path || cch_dest < 10)
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return false;
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// Get the exe name, and exe path
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wchar_t strExePath[MAX_PATH] = { 0 };
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wchar_t strExeName[MAX_PATH] = { 0 };
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GetModuleFileName(HINST_THISCOMPONENT, strExePath, MAX_PATH);
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strExePath[MAX_PATH - 1] = 0;
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wchar_t* strLastSlash = wcsrchr(strExePath, TEXT('\\'));
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if (strLastSlash)
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{
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wcscpy_s(strExeName, MAX_PATH, &strLastSlash[1]);
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// Chop the exe name from the exe path
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*strLastSlash = 0;
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// Chop the .exe from the exe name
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strLastSlash = wcsrchr(strExeName, TEXT('.'));
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if (strLastSlash)
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*strLastSlash = 0;
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}
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wcscpy_s(dest_path, cch_dest, file_name);
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if (GetFileAttributes(dest_path) != 0xFFFFFFFF)
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return true;
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// Search all parent directories starting At .\ and using file_name as the leaf name
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wchar_t strLeafName[MAX_PATH] = { 0 };
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wcscpy_s(strLeafName, MAX_PATH, file_name);
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wchar_t strFullPath[MAX_PATH] = { 0 };
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wchar_t strFullFileName[MAX_PATH] = { 0 };
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wchar_t strSearch[MAX_PATH] = { 0 };
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wchar_t* strFilePart = nullptr;
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GetFullPathName(L".", MAX_PATH, strFullPath, &strFilePart);
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if (strFilePart == nullptr)
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return false;
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while (strFilePart != nullptr && *strFilePart != '\0')
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{
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swprintf_s(strFullFileName, MAX_PATH, L"%s\\%s", strFullPath, strLeafName);
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if (GetFileAttributes(strFullFileName) != 0xFFFFFFFF)
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{
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wcscpy_s(dest_path, cch_dest, strFullFileName);
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bFound = true;
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break;
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}
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swprintf_s(strFullFileName, MAX_PATH, L"%s\\%s\\%s", strFullPath, strExeName, strLeafName);
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if (GetFileAttributes(strFullFileName) != 0xFFFFFFFF)
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{
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wcscpy_s(dest_path, cch_dest, strFullFileName);
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bFound = true;
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break;
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}
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swprintf_s(strSearch, MAX_PATH, L"%s\\..", strFullPath);
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GetFullPathName(strSearch, MAX_PATH, strFullPath, &strFilePart);
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}
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if (bFound)
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return true;
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// 失败时，将文件作为路径返回，同时也返回错误代码
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||
wcscpy_s(dest_path, cch_dest, file_name);
|
||
|
||
return false;
|
||
}
|