525 lines
10 KiB
C++
525 lines
10 KiB
C++
#include "..\etools.h"
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#include "..\Win\winbase.h"
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#include <map>
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#include <mmsystem.h>
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#include <Digitalv.h>
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#pragma comment(lib , "winmm.lib")
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static size_t Hash(const e2d::EString & key);
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static bool ExtractResource(LPCTSTR strDstFile, LPCTSTR strResType, LPCTSTR strResName);
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////////////////////////////////////////////////////////////////////
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// MciPlayer
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////////////////////////////////////////////////////////////////////
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class MciPlayer
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{
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public:
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MciPlayer();
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~MciPlayer();
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void close();
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bool open(const e2d::EString & pFileName, size_t uId);
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bool open(const e2d::EString & pResouceName, const e2d::EString & pResouceType, const e2d::EString & musicExtension, size_t uId);
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void play(bool bLoop = false);
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void pause();
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void resume();
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void stop();
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void rewind();
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void setVolume(float volume);
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bool isPlaying();
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size_t getSoundID();
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private:
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void _sendCommand(int nCommand, DWORD_PTR param1 = 0, DWORD_PTR parma2 = 0);
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MCIDEVICEID m_dev;
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size_t m_nSoundID;
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bool m_bPlaying;
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bool m_bLoop;
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e2d::EString m_sTempFileName;
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};
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MciPlayer::MciPlayer() :
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m_dev(0L),
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m_nSoundID(0),
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m_bPlaying(false),
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m_bLoop(false)
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{
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}
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MciPlayer::~MciPlayer()
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{
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close(); // 关闭播放器
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}
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bool MciPlayer::open(const e2d::EString & pFileName, size_t uId)
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{
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// 忽略不存在的文件
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if (pFileName.empty())
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return false;
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// 停止当前音乐
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close();
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// 设置 MCI_OPEN_PARMS 参数
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MCI_OPEN_PARMS mciOpen = { 0 };
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mciOpen.lpstrElementName = pFileName.c_str();
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// 打开这个文件
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MCIERROR mciError;
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mciError = mciSendCommand(
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0,
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MCI_OPEN,
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MCI_OPEN_ELEMENT | MCI_NOTIFY,
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reinterpret_cast<DWORD_PTR>(&mciOpen)
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);
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if (mciError)
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{
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return false;
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}
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else
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{
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// 保存设备等信息
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m_dev = mciOpen.wDeviceID;
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m_nSoundID = uId;
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m_bPlaying = false;
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return true;
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}
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}
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bool MciPlayer::open(const e2d::EString & pResouceName, const e2d::EString & pResouceType, const e2d::EString & musicExtension, size_t uId)
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{
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// 忽略不存在的文件
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if (pResouceName.empty() || pResouceType.empty() || musicExtension.empty()) return false;
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// 获取临时文件目录
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e2d::EString tempFileName = e2d::EFileUtils::getTempPath();
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// 产生临时文件的文件名
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tempFileName.append(L"\\");
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tempFileName.append(std::to_wstring(uId));
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tempFileName.append(L"." + musicExtension);
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// 导出资源为临时文件
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if (ExtractResource(tempFileName.c_str(), pResouceType.c_str(), pResouceName.c_str()))
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{
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if (open(tempFileName, uId))
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{
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m_sTempFileName = tempFileName;
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return true;
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}
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}
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return false;
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}
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void MciPlayer::play(bool bLoop)
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{
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// 设备为空时，忽略这次操作
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if (!m_dev)
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{
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return;
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}
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// 设置播放参数
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MCI_PLAY_PARMS mciPlay = { 0 };
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MCIERROR s_mciError;
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// 播放声音
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s_mciError = mciSendCommand(
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m_dev,
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MCI_PLAY,
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MCI_FROM | MCI_NOTIFY | (bLoop ? MCI_DGV_PLAY_REPEAT : 0),
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reinterpret_cast<DWORD_PTR>(&mciPlay)
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);
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// 未出错时，置 m_bPlaying 为 true
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if (!s_mciError)
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{
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m_bPlaying = true;
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m_bLoop = bLoop;
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}
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}
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void MciPlayer::close()
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{
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// 停止音乐
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if (m_bPlaying)
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{
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stop();
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}
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// 关闭设备
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if (m_dev)
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{
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_sendCommand(MCI_CLOSE);
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}
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// 删除临时文件
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if (!m_sTempFileName.empty())
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{
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DeleteFile(m_sTempFileName.c_str());
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m_sTempFileName.clear();
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}
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// 恢复默认属性
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m_dev = 0;
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m_bPlaying = false;
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}
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void MciPlayer::pause()
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{
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// 暂停音乐
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_sendCommand(MCI_PAUSE);
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m_bPlaying = false;
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}
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void MciPlayer::resume()
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{
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// 继续播放音乐
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_sendCommand(MCI_RESUME);
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m_bPlaying = true;
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}
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void MciPlayer::stop()
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{
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// 停止音乐
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_sendCommand(MCI_STOP);
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m_bPlaying = false;
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}
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void MciPlayer::rewind()
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{
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// 设备为空时，忽略这次操作
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if (!m_dev)
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{
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return;
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}
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// 重置播放位置
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mciSendCommand(
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m_dev,
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MCI_SEEK,
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MCI_SEEK_TO_START | MCI_NOTIFY,
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0
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);
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// 播放音乐
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MCI_PLAY_PARMS mciPlay = { 0 };
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MCIERROR s_mciError;
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// 播放声音
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s_mciError = mciSendCommand(
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m_dev,
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MCI_PLAY,
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MCI_NOTIFY | (m_bLoop ? MCI_DGV_PLAY_REPEAT : 0),
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reinterpret_cast<DWORD_PTR>(&mciPlay)
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);
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m_bPlaying = s_mciError ? false : true;
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}
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void MciPlayer::setVolume(float volume)
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{
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MCI_DGV_SETAUDIO_PARMS mciSetAudioPara = { 0 };
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mciSetAudioPara.dwItem = MCI_DGV_SETAUDIO_VOLUME;
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mciSetAudioPara.dwValue = DWORD(1000 * min(max(volume, 0), 1));
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mciSendCommand(
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m_dev,
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MCI_SETAUDIO,
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MCI_NOTIFY | MCI_DGV_SETAUDIO_VALUE | MCI_DGV_SETAUDIO_ITEM,
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(DWORD_PTR)&mciSetAudioPara
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);
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}
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bool MciPlayer::isPlaying()
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{
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return m_bPlaying;
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}
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size_t MciPlayer::getSoundID()
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{
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return m_nSoundID;
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}
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void MciPlayer::_sendCommand(int nCommand, DWORD_PTR param1, DWORD_PTR parma2)
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{
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// 空设备时忽略这次操作
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if (!m_dev)
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{
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return;
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}
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// 向当前设备发送操作
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mciSendCommand(m_dev, nCommand, param1, parma2);
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}
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////////////////////////////////////////////////////////////////////
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// e2d::EMusicUtils
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////////////////////////////////////////////////////////////////////
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typedef std::map<size_t, MciPlayer *> MusicList;
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typedef std::pair<size_t, MciPlayer *> Music;
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static MusicList& getMciPlayerList()
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{
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static MusicList s_List;
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return s_List;
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}
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static MciPlayer& getBgMciPlayer()
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{
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static MciPlayer s_Music;
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return s_Music;
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}
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void e2d::EMusicUtils::end()
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{
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// 停止背景音乐
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getBgMciPlayer().close();
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// 停止其他所有音乐
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for (auto& iter : getMciPlayerList())
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{
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SafeDelete(&iter.second);
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}
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// 清空音乐列表
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getMciPlayerList().clear();
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return;
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}
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void e2d::EMusicUtils::setVolume(float volume)
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{
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// 设置背景音乐音量
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getBgMciPlayer().setVolume(volume);
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// 设置其他音乐音量
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for (auto& iter : getMciPlayerList())
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{
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iter.second->setVolume(volume);
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}
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}
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void e2d::EMusicUtils::setVolume(const EString & musicFilePath, float volume)
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{
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size_t nRet = ::Hash(musicFilePath);
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MusicList::iterator p = getMciPlayerList().find(nRet);
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if (p != getMciPlayerList().end())
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{
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p->second->setVolume(volume);
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}
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}
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void e2d::EMusicUtils::playBackgroundMusic(const EString & musicFilePath, bool bLoop)
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{
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if (musicFilePath.empty())
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{
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return;
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}
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getBgMciPlayer().open(musicFilePath, ::Hash(musicFilePath));
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getBgMciPlayer().play(bLoop);
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}
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void e2d::EMusicUtils::playBackgroundMusic(const EString & musicResourceName, const EString & musicResourceType, const EString & musicExtension, bool loop)
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{
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if (musicResourceName.empty() || musicResourceType.empty())
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{
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return;
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}
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getBgMciPlayer().open(musicResourceName, musicResourceType, musicExtension, ::Hash(musicResourceName));
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getBgMciPlayer().play(loop);
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}
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void e2d::EMusicUtils::stopBackgroundMusic(bool bReleaseData)
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{
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if (bReleaseData)
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{
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getBgMciPlayer().close();
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}
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else
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{
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getBgMciPlayer().stop();
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}
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}
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void e2d::EMusicUtils::pauseBackgroundMusic()
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{
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getBgMciPlayer().pause();
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}
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void e2d::EMusicUtils::resumeBackgroundMusic()
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{
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getBgMciPlayer().resume();
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}
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void e2d::EMusicUtils::rewindBackgroundMusic()
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{
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getBgMciPlayer().rewind();
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}
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bool e2d::EMusicUtils::isBackgroundMusicPlaying()
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{
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return getBgMciPlayer().isPlaying();
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}
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void e2d::EMusicUtils::setBackgroundMusicVolume(float volume)
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{
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getBgMciPlayer().setVolume(volume);
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}
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void e2d::EMusicUtils::playMusic(const EString & musicFilePath, bool bLoop)
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{
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size_t nRet = ::Hash(musicFilePath);
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preloadMusic(musicFilePath);
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MusicList::iterator p = getMciPlayerList().find(nRet);
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if (p != getMciPlayerList().end())
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{
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p->second->play(bLoop);
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}
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}
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void e2d::EMusicUtils::playMusic(const EString & musicResourceName, const EString & musicResourceType, const EString & musicExtension, bool loop)
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{
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size_t nRet = ::Hash(musicResourceName);
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preloadMusic(musicResourceName, musicResourceType, musicExtension);
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MusicList::iterator p = getMciPlayerList().find(nRet);
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if (p != getMciPlayerList().end())
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{
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p->second->play(loop);
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}
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}
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void e2d::EMusicUtils::_stopMusic(size_t nSoundId)
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{
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MusicList::iterator p = getMciPlayerList().find(nSoundId);
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if (p != getMciPlayerList().end())
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{
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p->second->stop();
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}
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}
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void e2d::EMusicUtils::preloadMusic(const EString & musicFilePath)
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{
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if (musicFilePath.empty()) return;
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size_t nRet = ::Hash(musicFilePath);
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if (getMciPlayerList().end() != getMciPlayerList().find(nRet)) return;
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getMciPlayerList().insert(Music(nRet, new MciPlayer()));
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MciPlayer * pPlayer = getMciPlayerList()[nRet];
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pPlayer->open(musicFilePath, nRet);
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if (nRet == pPlayer->getSoundID()) return;
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delete pPlayer;
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getMciPlayerList().erase(nRet);
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nRet = 0;
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}
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void e2d::EMusicUtils::preloadMusic(const EString & musicResourceName, const EString & musicResourceType, const EString & musicExtension)
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{
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if (musicResourceName.empty() || musicResourceType.empty()) return;
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size_t nRet = ::Hash(musicResourceName);
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if (getMciPlayerList().end() != getMciPlayerList().find(nRet)) return;
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getMciPlayerList().insert(Music(nRet, new MciPlayer()));
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MciPlayer * pPlayer = getMciPlayerList()[nRet];
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pPlayer->open(musicResourceName, musicResourceType, musicExtension, nRet);
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if (nRet == pPlayer->getSoundID()) return;
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delete pPlayer;
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getMciPlayerList().erase(nRet);
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nRet = 0;
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}
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void e2d::EMusicUtils::_pauseMusic(size_t nSoundId)
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{
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MusicList::iterator p = getMciPlayerList().find(nSoundId);
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if (p != getMciPlayerList().end())
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{
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p->second->pause();
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}
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}
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void e2d::EMusicUtils::pauseAllMusics()
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{
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for (auto& iter : getMciPlayerList())
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{
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iter.second->pause();
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}
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}
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void e2d::EMusicUtils::_resumeMusic(size_t nSoundId)
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{
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MusicList::iterator p = getMciPlayerList().find(nSoundId);
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if (p != getMciPlayerList().end())
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{
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p->second->resume();
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}
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}
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void e2d::EMusicUtils::resumeAllMusics()
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{
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for (auto& iter : getMciPlayerList())
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{
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iter.second->resume();
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}
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}
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void e2d::EMusicUtils::stopAllMusics()
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{
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for (auto& iter : getMciPlayerList())
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{
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iter.second->stop();
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}
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}
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void e2d::EMusicUtils::unloadMusic(const EString & musicFilePath)
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{
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size_t nID = ::Hash(musicFilePath);
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MusicList::iterator p = getMciPlayerList().find(nID);
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if (p != getMciPlayerList().end())
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{
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SafeDelete(&p->second);
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getMciPlayerList().erase(nID);
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}
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}
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size_t Hash(const e2d::EString & key)
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{
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static std::hash<e2d::EString> h;
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return h(key);
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}
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bool ExtractResource(LPCTSTR strDstFile, LPCTSTR strResType, LPCTSTR strResName)
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{
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// 创建文件
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HANDLE hFile = ::CreateFile(strDstFile, GENERIC_WRITE, NULL, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_TEMPORARY, NULL);
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if (hFile == INVALID_HANDLE_VALUE)
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return false;
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// 查找资源文件中、加载资源到内存、得到资源大小
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HRSRC hRes = ::FindResource(NULL, strResName, strResType);
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HGLOBAL hMem = ::LoadResource(NULL, hRes);
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DWORD dwSize = ::SizeofResource(NULL, hRes);
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// 写入文件
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DWORD dwWrite = 0; // 返回写入字节
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::WriteFile(hFile, hMem, dwSize, &dwWrite, NULL);
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::CloseHandle(hFile);
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return true;
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} |