rainmeter-studio/Plugins/PluginNowPlaying/PlayerWinamp.cpp
2011-05-25 14:04:52 +00:00

503 lines
9.3 KiB
C++

/*
Copyright (C) 2011 Birunthan Mohanathas (www.poiru.net)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "StdAfx.h"
#include "PlayerWinamp.h"
#include "Winamp/wa_ipc.h"
#include "Winamp/wa_cmd.h"
extern CPlayer* g_Winamp;
/*
** CPlayerWinamp
**
** Constructor.
**
*/
CPlayerWinamp::CPlayerWinamp() : CPlayer(),
m_UseUnicodeAPI(false),
m_HasCoverMeasure(false),
m_Window()
{
Initialize();
}
/*
** ~CPlayerWinamp
**
** Destructor.
**
*/
CPlayerWinamp::~CPlayerWinamp()
{
if (m_WinampHandle) CloseHandle(m_WinampHandle);
}
/*
** AddInstance
**
** Called during initialization of each measure.
**
*/
void CPlayerWinamp::AddInstance(MEASURETYPE type)
{
++m_InstanceCount;
if (type == MEASURE_COVER)
{
g_Winamp = NULL;
m_HasCoverMeasure = true;
}
}
/*
** RemoveInstance
**
** Called during destruction of each measure.
**
*/
void CPlayerWinamp::RemoveInstance()
{
if (--m_InstanceCount == 0)
{
delete this;
}
}
/*
** Initialize
**
** Get things ready with Winamp.
**
*/
bool CPlayerWinamp::Initialize()
{
m_Window = FindWindow(L"Winamp v1.x", NULL);
if (m_Window)
{
DWORD pID;
GetWindowThreadProcessId(m_Window, &pID);
m_WinampHandle = OpenProcess(PROCESS_VM_READ, false, pID);
if (m_WinampHandle)
{
m_WinampAddress = (LPCVOID)SendMessage(m_Window, WM_WA_IPC, 0, IPC_GET_PLAYING_FILENAME);
m_UseUnicodeAPI = m_WinampAddress ? true : false;
return true;
}
}
return false;
}
/*
** CheckActive
**
** Check if Winamp is active.
**
*/
bool CPlayerWinamp::CheckActive()
{
if (m_Window)
{
if (!IsWindow(m_Window))
{
m_Window = NULL;
CloseHandle(m_WinampHandle);
ClearInfo();
return false;
}
return true;
}
else
{
static DWORD oldTime = 0;
DWORD time = GetTickCount();
// Try to find Winamp window every 5 seconds
if (time - oldTime > 5000)
{
oldTime = time;
return Initialize();
}
return false;
}
}
/*
** UpdateData
**
** Called during each update of the main measure.
**
*/
void CPlayerWinamp::UpdateData()
{
if (!CheckActive()) return; // Make sure Winamp is running
if (m_TrackChanged)
{
ExecuteTrackChangeAction();
m_TrackChanged = false;
}
int playing = SendMessage(m_Window, WM_WA_IPC, 0, IPC_ISPLAYING);
if (playing == 0)
{
if (!m_FilePath.empty())
{
ClearInfo();
}
return; // Don't continue if stopped
}
else
{
m_State = (playing == 1) ? PLAYER_PLAYING : PLAYER_PAUSED;
m_Position = SendMessage(m_Window, WM_WA_IPC, 0, IPC_GETOUTPUTTIME) / 1000; // Returns ms, make seconds
float volume = SendMessage(m_Window, WM_WA_IPC, -666, IPC_SETVOLUME);
volume /= 2.55f;
m_Volume = (UINT)volume;
}
BOOL ret;
WCHAR wBuffer[MAX_PATH];
char cBuffer[MAX_PATH];
if (m_UseUnicodeAPI)
{
ret = ReadProcessMemory(m_WinampHandle, m_WinampAddress, &wBuffer, MAX_PATH, NULL);
}
else
{
// MediaMonkey doesn't support wide IPC messages
int pos = SendMessage(m_Window, WM_WA_IPC, 0, IPC_GETLISTPOS);
LPCVOID address = (LPCVOID)SendMessage(m_Window, WM_WA_IPC, pos, IPC_GETPLAYLISTFILE);
ret = ReadProcessMemory(m_WinampHandle, address, &cBuffer, MAX_PATH, NULL);
mbstowcs(wBuffer, cBuffer, MAX_PATH);
}
if (!ret)
{
LSLog(LOG_ERROR, L"Rainmeter", L"NowPlayingPlugin: Failed to read Winamp memory (file).");
return;
}
if (wcscmp(wBuffer, m_FilePath.c_str()) != 0)
{
m_TrackChanged = true;
m_FilePath = wBuffer;
m_Rating = SendMessage(m_Window, WM_WA_IPC, 0, IPC_GETRATING);
m_Duration = SendMessage(m_Window, WM_WA_IPC, 1, IPC_GETOUTPUTTIME);
TagLib::FileRef fr(wBuffer);
if (!fr.isNull() && fr.tag())
{
TagLib::Tag* tag = fr.tag();
m_Artist = tag->artist().toWString();
m_Album = tag->album().toWString();
m_Title = tag->title().toWString();
}
else
{
// TagLib couldn't parse the file, try title instead
if (m_UseUnicodeAPI)
{
LPCVOID address = (LPCVOID)SendMessage(m_Window, WM_WA_IPC, 0, IPC_GET_PLAYING_TITLE);
ret = ReadProcessMemory(m_WinampHandle, address, &wBuffer, MAX_PATH, NULL);
}
else
{
int pos = SendMessage(m_Window, WM_WA_IPC, 0, IPC_GETLISTPOS);
LPCVOID address = (LPCVOID)SendMessage(m_Window, WM_WA_IPC, pos, IPC_GETPLAYLISTTITLE);
ReadProcessMemory(m_WinampHandle, m_WinampAddress, &cBuffer, MAX_PATH, NULL);
ret = mbstowcs(wBuffer, cBuffer, MAX_PATH);
}
if (!ret)
{
LSLog(LOG_ERROR, L"Rainmeter", L"NowPlayingPlugin: Failed to read Winamp memory (title).");
return;
}
std::wstring title = wBuffer;
std::wstring::size_type pos = title.find(L". ");
if (pos != std::wstring::npos && pos < 5)
{
pos += 2; // Skip ". "
title.erase(0, pos);
}
pos = title.find(L" - ");
if (pos != std::wstring::npos)
{
m_Title = title.substr(0, pos);
pos += 3; // Skip " - "
m_Artist = title.substr(pos);
m_Album.clear();
}
else
{
ClearInfo();
return;
}
}
if (m_HasCoverMeasure)
{
if (GetCachedArt() || GetEmbeddedArt(fr))
{
// Art found in cache or embedded in file
return;
}
// Get rid of the name and extension from filename
std::wstring trackFolder = m_FilePath;
std::wstring::size_type pos = trackFolder.find_last_of(L'\\');
if (pos == std::wstring::npos) return;
trackFolder.resize(++pos);
if (!m_Album.empty())
{
std::wstring file = m_Album;
std::wstring::size_type end = file.length();
for (pos = 0; pos < end; ++pos)
{
// Replace reserved chars according to Winamp specs
switch (file[pos])
{
case L'?':
case L'*':
case L'|':
file[pos] = L'_';
break;
case L'/':
case L'\\':
case L':':
file[pos] = L'-';
break;
case L'\"':
file[pos] = L'\'';
break;
case L'<':
file[pos] = L'(';
break;
case L'>':
file[pos] = L')';
break;
}
}
if (GetLocalArt(trackFolder, file))
{
// %album% art file found
return;
}
}
if (GetLocalArt(trackFolder, L"cover") || GetLocalArt(trackFolder, L"folder"))
{
// Local art found
return;
}
// Nothing found
m_CoverPath.clear();
}
}
}
/*
** Play
**
** Handles the Play bang.
**
*/
void CPlayerWinamp::Play()
{
if (m_Window)
{
SendMessage(m_Window, WM_COMMAND, WINAMP_PLAY, 0);
}
}
/*
** PlayPause
**
** Handles the PlayPause bang.
**
*/
void CPlayerWinamp::PlayPause()
{
if (m_Window)
{
SendMessage(m_Window, WM_COMMAND, (m_State == PLAYER_STOPPED) ? WINAMP_PLAY : WINAMP_PAUSE, 0);
}
}
/*
** Stop
**
** Handles the Stop bang.
**
*/
void CPlayerWinamp::Stop()
{
if (m_Window)
{
SendMessage(m_Window, WM_COMMAND, WINAMP_STOP, 0);
}
}
/*
** Next
**
** Handles the Next bang.
**
*/
void CPlayerWinamp::Next()
{
if (m_Window)
{
SendMessage(m_Window, WM_COMMAND, WINAMP_FASTFWD, 0);
}
}
/*
** Previous
**
** Handles the Previous bang.
**
*/
void CPlayerWinamp::Previous()
{
if (m_Window)
{
SendMessage(m_Window, WM_COMMAND, WINAMP_REWIND, 0);
}
}
/*
** SetRating
**
** Handles the SetRating bang.
**
*/
void CPlayerWinamp::SetRating(int rating)
{
if (m_Window && (m_State != PLAYER_STOPPED))
{
if (rating < 0)
{
rating = 0;
}
else if (rating > 5)
{
rating = 5;
}
SendMessage(m_Window, WM_WA_IPC, rating, IPC_SETRATING);
m_Rating = rating;
}
}
/*
** SetVolume
**
** Handles the SetVolume bang.
**
*/
void CPlayerWinamp::SetVolume(int volume)
{
if (m_Window)
{
++volume; // For proper scaling
if (volume < 0)
{
volume = 0;
}
else if (volume > 100)
{
volume = 100;
}
// Winamp accepts volume in 0 - 255 range
float fVolume = (float)volume;
fVolume *= 2.55f;
volume = (UINT)fVolume;
SendMessage(m_Window, WM_WA_IPC, volume, IPC_SETVOLUME);
}
}
/*
** ChangeVolume
**
** Handles the ChangeVolume bang.
**
*/
void CPlayerWinamp::ChangeVolume(int volume)
{
volume += m_Volume;
SetVolume(volume);
}
/*
** ClosePlayer
**
** Handles the ClosePlayer bang.
**
*/
void CPlayerWinamp::ClosePlayer()
{
if (m_Window)
{
SendMessage(m_Window, WM_CLOSE, 0, 0);
}
}
/*
** OpenPlayer
**
** Handles the OpenPlayer bang.
**
*/
void CPlayerWinamp::OpenPlayer()
{
ShellExecute(NULL, L"open", m_PlayerPath.empty() ? L"winamp.exe" : m_PlayerPath.c_str(), NULL, NULL, SW_SHOW);
}
/*
** TogglePlayer
**
** Handles the TogglePlayer bang.
**
*/
void CPlayerWinamp::TogglePlayer()
{
m_Window ? ClosePlayer() : OpenPlayer();
}