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Util.cpp
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Util.cpp
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/*
* Copyright (C) 2005-2008 Team XBMC
* http://www.xbmc.org
*
* 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, 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 XBMC; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#include "threads/SystemClock.h"
#include "system.h"
#if defined(TARGET_DARWIN)
#include <sys/param.h>
#include <mach-o/dyld.h>
#endif
#if defined(__FreeBSD__)
#include <sys/param.h>
#include <sys/sysctl.h>
#endif
#ifdef _LINUX
#include <sys/types.h>
#include <dirent.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>
#endif
#include "Application.h"
#include "Util.h"
#include "addons/Addon.h"
#include "filesystem/Directory.h"
#include "filesystem/StackDirectory.h"
#include "filesystem/MultiPathDirectory.h"
#include "filesystem/SpecialProtocol.h"
#include "filesystem/RSSDirectory.h"
#ifdef HAS_FILESYSTEM_RAR
#include "filesystem/RarManager.h"
#endif
#include "filesystem/MythDirectory.h"
#ifdef HAS_UPNP
#include "filesystem/UPnPDirectory.h"
#endif
#ifdef HAS_VIDEO_PLAYBACK
#include "cores/VideoRenderers/RenderManager.h"
#endif
#include "utils/RegExp.h"
#include "settings/GUISettings.h"
#include "guilib/TextureManager.h"
#include "utils/fstrcmp.h"
#include "storage/MediaManager.h"
#ifdef _WIN32
#include <shlobj.h>
#include "WIN32Util.h"
#endif
#if defined(TARGET_DARWIN)
#include "osx/DarwinUtils.h"
#endif
#include "GUIUserMessages.h"
#include "filesystem/File.h"
#include "settings/Settings.h"
#include "utils/StringUtils.h"
#include "settings/AdvancedSettings.h"
#ifdef HAS_IRSERVERSUITE
#include "input/windows/IRServerSuite.h"
#endif
#include "guilib/LocalizeStrings.h"
#include "utils/md5.h"
#include "utils/TimeUtils.h"
#include "utils/URIUtils.h"
#include "utils/log.h"
#include "pictures/Picture.h"
#include "utils/JobManager.h"
#include "cores/dvdplayer/DVDSubtitles/DVDSubtitleTagSami.h"
#include "cores/dvdplayer/DVDSubtitles/DVDSubtitleStream.h"
#include "windowing/WindowingFactory.h"
#include "URL.h"
#ifdef HAVE_LIBCAP
#include <sys/capability.h>
#endif
using namespace std;
using namespace XFILE;
#define clamp(x) (x) > 255.f ? 255 : ((x) < 0 ? 0 : (BYTE)(x+0.5f)) // Valid ranges: brightness[-1 -> 1 (0 is default)] contrast[0 -> 2 (1 is default)] gamma[0.5 -> 3.5 (1 is default)] default[ramp is linear]
static const int64_t SECS_BETWEEN_EPOCHS = 11644473600LL;
static const int64_t SECS_TO_100NS = 10000000;
using namespace XFILE;
using namespace PLAYLIST;
#ifdef HAS_DX
static D3DGAMMARAMP oldramp, flashramp;
#elif defined(HAS_SDL_2D)
static uint16_t oldrampRed[256];
static uint16_t oldrampGreen[256];
static uint16_t oldrampBlue[256];
static uint16_t flashrampRed[256];
static uint16_t flashrampGreen[256];
static uint16_t flashrampBlue[256];
#endif
CUtil::CUtil(void)
{
}
CUtil::~CUtil(void)
{}
CStdString CUtil::GetTitleFromPath(const CStdString& strFileNameAndPath, bool bIsFolder /* = false */)
{
// use above to get the filename
CStdString path(strFileNameAndPath);
URIUtils::RemoveSlashAtEnd(path);
CStdString strFilename = URIUtils::GetFileName(path);
CURL url(strFileNameAndPath);
CStdString strHostname = url.GetHostName();
#ifdef HAS_UPNP
// UPNP
if (url.GetProtocol() == "upnp")
strFilename = CUPnPDirectory::GetFriendlyName(strFileNameAndPath.c_str());
#endif
if (url.GetProtocol() == "rss")
{
CRSSDirectory dir;
CFileItemList items;
if(dir.GetDirectory(strFileNameAndPath, items) && !items.m_strTitle.IsEmpty())
return items.m_strTitle;
}
// LastFM
if (url.GetProtocol() == "lastfm")
{
if (strFilename.IsEmpty())
strFilename = g_localizeStrings.Get(15200);
else
strFilename = g_localizeStrings.Get(15200) + " - " + strFilename;
}
// Shoutcast
else if (url.GetProtocol() == "shout")
{
const int genre = strFileNameAndPath.find_first_of('=');
if(genre <0)
strFilename = g_localizeStrings.Get(260);
else
strFilename = g_localizeStrings.Get(260) + " - " + strFileNameAndPath.substr(genre+1).c_str();
}
// Windows SMB Network (SMB)
else if (url.GetProtocol() == "smb" && strFilename.IsEmpty())
{
if (url.GetHostName().IsEmpty())
{
strFilename = g_localizeStrings.Get(20171);
}
else
{
strFilename = url.GetHostName();
}
}
// iTunes music share (DAAP)
else if (url.GetProtocol() == "daap" && strFilename.IsEmpty())
strFilename = g_localizeStrings.Get(20174);
// HDHomerun Devices
else if (url.GetProtocol() == "hdhomerun" && strFilename.IsEmpty())
strFilename = "HDHomerun Devices";
// Slingbox Devices
else if (url.GetProtocol() == "sling")
strFilename = "Slingbox";
// ReplayTV Devices
else if (url.GetProtocol() == "rtv")
strFilename = "ReplayTV Devices";
// HTS Tvheadend client
else if (url.GetProtocol() == "htsp")
strFilename = g_localizeStrings.Get(20256);
// VDR Streamdev client
else if (url.GetProtocol() == "vtp")
strFilename = g_localizeStrings.Get(20257);
// MythTV client
else if (url.GetProtocol() == "myth")
strFilename = g_localizeStrings.Get(20258);
// SAP Streams
else if (url.GetProtocol() == "sap" && strFilename.IsEmpty())
strFilename = "SAP Streams";
// Root file views
else if (url.GetProtocol() == "sources")
strFilename = g_localizeStrings.Get(744);
// Music Playlists
else if (path.Left(24).Equals("special://musicplaylists"))
strFilename = g_localizeStrings.Get(136);
// Video Playlists
else if (path.Left(24).Equals("special://videoplaylists"))
strFilename = g_localizeStrings.Get(136);
else if (URIUtils::ProtocolHasParentInHostname(url.GetProtocol()) && strFilename.IsEmpty())
strFilename = URIUtils::GetFileName(url.GetHostName());
// now remove the extension if needed
if (!g_guiSettings.GetBool("filelists.showextensions") && !bIsFolder)
{
URIUtils::RemoveExtension(strFilename);
return strFilename;
}
// URLDecode since the original path may be an URL
CURL::Decode(strFilename);
return strFilename;
}
bool CUtil::GetVolumeFromFileName(const CStdString& strFileName, CStdString& strFileTitle, CStdString& strVolumeNumber)
{
const CStdStringArray ®exps = g_advancedSettings.m_videoStackRegExps;
CStdString strFileNameTemp = strFileName;
CRegExp reg(true);
for (unsigned int i = 0; i < regexps.size(); i++)
{
CStdString strRegExp = regexps[i];
if (!reg.RegComp(strRegExp.c_str()))
{ // invalid regexp - complain in logs
CLog::Log(LOGERROR, "Invalid RegExp:[%s]", regexps[i].c_str());
continue;
}
// CLog::Log(LOGDEBUG, "Regexp:[%s]", regexps[i].c_str());
int iFoundToken = reg.RegFind(strFileName.c_str());
if (iFoundToken >= 0)
{
int iRegLength = reg.GetFindLen();
int iCount = reg.GetSubCount();
/*
reg.DumpOvector(LOGDEBUG);
CLog::Log(LOGDEBUG, "Subcount=%i", iCount);
for (int j = 0; j <= iCount; j++)
{
CStdString str = reg.GetMatch(j);
CLog::Log(LOGDEBUG, "Sub(%i):[%s]", j, str.c_str());
}
*/
// simple regexp, only the volume is captured
if (iCount == 1)
{
strVolumeNumber = reg.GetMatch(1);
if (strVolumeNumber.IsEmpty()) return false;
// Remove the extension (if any). We do this on the base filename, as the regexp
// match may include some of the extension (eg the "." in particular).
// The extension will then be added back on at the end - there is no reason
// to clean it off here. It will be cleaned off during the display routine, if
// the settings to hide extensions are turned on.
CStdString strFileNoExt = strFileNameTemp;
URIUtils::RemoveExtension(strFileNoExt);
CStdString strFileExt = strFileNameTemp.Right(strFileNameTemp.length() - strFileNoExt.length());
CStdString strFileRight = strFileNoExt.Mid(iFoundToken + iRegLength);
strFileTitle = strFileName.Left(iFoundToken) + strFileRight + strFileExt;
return true;
}
// advanced regexp with prefix (1), volume (2), and suffix (3)
else if (iCount == 3)
{
// second subpatten contains the stacking volume
strVolumeNumber = reg.GetMatch(2);
if (strVolumeNumber.IsEmpty()) return false;
// everything before the regexp match
strFileTitle = strFileName.Left(iFoundToken);
// first subpattern contains prefix
strFileTitle += reg.GetMatch(1);
// third subpattern contains suffix
strFileTitle += reg.GetMatch(3);
// everything after the regexp match
strFileTitle += strFileNameTemp.Mid(iFoundToken + iRegLength);
return true;
}
// unknown regexp format
else
{
CLog::Log(LOGERROR, "Incorrect movie stacking regexp format:[%s]", regexps[i].c_str());
}
}
}
return false;
}
void CUtil::CleanString(const CStdString& strFileName, CStdString& strTitle, CStdString& strTitleAndYear, CStdString& strYear, bool bRemoveExtension /* = false */, bool bCleanChars /* = true */)
{
strTitleAndYear = strFileName;
if (strFileName.Equals(".."))
return;
const CStdStringArray ®exps = g_advancedSettings.m_videoCleanStringRegExps;
CRegExp reTags(true);
CRegExp reYear;
CStdString strExtension;
URIUtils::GetExtension(strFileName, strExtension);
if (!reYear.RegComp(g_advancedSettings.m_videoCleanDateTimeRegExp))
{
CLog::Log(LOGERROR, "%s: Invalid datetime clean RegExp:'%s'", __FUNCTION__, g_advancedSettings.m_videoCleanDateTimeRegExp.c_str());
}
else
{
if (reYear.RegFind(strTitleAndYear.c_str()) >= 0)
{
strTitleAndYear = reYear.GetReplaceString("\\1");
strYear = reYear.GetReplaceString("\\2");
}
}
URIUtils::RemoveExtension(strTitleAndYear);
for (unsigned int i = 0; i < regexps.size(); i++)
{
if (!reTags.RegComp(regexps[i].c_str()))
{ // invalid regexp - complain in logs
CLog::Log(LOGERROR, "%s: Invalid string clean RegExp:'%s'", __FUNCTION__, regexps[i].c_str());
continue;
}
int j=0;
if ((j=reTags.RegFind(strFileName.c_str())) > 0)
strTitleAndYear = strTitleAndYear.Mid(0, j);
}
// final cleanup - special characters used instead of spaces:
// all '_' tokens should be replaced by spaces
// if the file contains no spaces, all '.' tokens should be replaced by
// spaces - one possibility of a mistake here could be something like:
// "Dr..StrangeLove" - hopefully no one would have anything like this.
if (bCleanChars)
{
bool initialDots = true;
bool alreadyContainsSpace = (strTitleAndYear.Find(' ') >= 0);
for (int i = 0; i < (int)strTitleAndYear.size(); i++)
{
char c = strTitleAndYear.GetAt(i);
if (c != '.')
initialDots = false;
if ((c == '_') || ((!alreadyContainsSpace) && !initialDots && (c == '.')))
{
strTitleAndYear.SetAt(i, ' ');
}
}
}
strTitle = strTitleAndYear.Trim();
// append year
if (!strYear.IsEmpty())
strTitleAndYear = strTitle + " (" + strYear + ")";
// restore extension if needed
if (!bRemoveExtension)
strTitleAndYear += strExtension;
}
void CUtil::GetQualifiedFilename(const CStdString &strBasePath, CStdString &strFilename)
{
// Check if the filename is a fully qualified URL such as protocol://path/to/file
CURL plItemUrl(strFilename);
if (!plItemUrl.GetProtocol().IsEmpty())
return;
// If the filename starts "x:", "\\" or "/" it's already fully qualified so return
if (strFilename.size() > 1)
#ifdef _LINUX
if ( (strFilename[1] == ':') || (strFilename[0] == '/') )
#else
if ( strFilename[1] == ':' || (strFilename[0] == '\\' && strFilename[1] == '\\'))
#endif
return;
// add to base path and then clean
strFilename = URIUtils::AddFileToFolder(strBasePath, strFilename);
// get rid of any /./ or \.\ that happen to be there
strFilename.Replace("\\.\\", "\\");
strFilename.Replace("/./", "/");
// now find any "\\..\\" and remove them via GetParentPath
int pos;
while ((pos = strFilename.Find("/../")) > 0)
{
CStdString basePath = strFilename.Left(pos+1);
strFilename = strFilename.Mid(pos+4);
basePath = URIUtils::GetParentPath(basePath);
strFilename = URIUtils::AddFileToFolder(basePath, strFilename);
}
while ((pos = strFilename.Find("\\..\\")) > 0)
{
CStdString basePath = strFilename.Left(pos+1);
strFilename = strFilename.Mid(pos+4);
basePath = URIUtils::GetParentPath(basePath);
strFilename = URIUtils::AddFileToFolder(basePath, strFilename);
}
}
#ifdef UNIT_TESTING
bool CUtil::TestGetQualifiedFilename()
{
CStdString file = "../foo"; GetQualifiedFilename("smb://", file);
if (file != "foo") return false;
file = "C:\\foo\\bar"; GetQualifiedFilename("smb://", file);
if (file != "C:\\foo\\bar") return false;
file = "../foo/./bar"; GetQualifiedFilename("smb://my/path", file);
if (file != "smb://my/foo/bar") return false;
file = "smb://foo/bar/"; GetQualifiedFilename("upnp://", file);
if (file != "smb://foo/bar/") return false;
return true;
}
bool CUtil::TestMakeLegalPath()
{
CStdString path;
#ifdef _WIN32
path = "C:\\foo\\bar"; path = MakeLegalPath(path);
if (path != "C:\\foo\\bar") return false;
path = "C:\\foo:\\bar\\"; path = MakeLegalPath(path);
if (path != "C:\\foo_\\bar\\") return false;
#elif
path = "/foo/bar/"; path = MakeLegalPath(path);
if (path != "/foo/bar/") return false;
path = "/foo?/bar"; path = MakeLegalPath(path);
if (path != "/foo_/bar") return false;
#endif
path = "smb://foo/bar"; path = MakeLegalPath(path);
if (path != "smb://foo/bar") return false;
path = "smb://foo/bar?/"; path = MakeLegalPath(path);
if (path != "smb://foo/bar_/") return false;
return true;
}
#endif
void CUtil::RunShortcut(const char* szShortcutPath)
{
}
void CUtil::GetHomePath(CStdString& strPath, const CStdString& strTarget)
{
CStdString strHomePath;
strHomePath = ResolveExecutablePath();
#ifdef _WIN32
CStdStringW strPathW, strTargetW;
g_charsetConverter.utf8ToW(strTarget, strTargetW);
strPathW = _wgetenv(strTargetW);
g_charsetConverter.wToUTF8(strPathW,strPath);
#else
strPath = getenv(strTarget);
#endif
if (strPath != NULL && !strPath.IsEmpty())
{
#ifdef _WIN32
char tmp[1024];
//expand potential relative path to full path
if(GetFullPathName(strPath, 1024, tmp, 0) != 0)
{
strPath = tmp;
}
#endif
}
else
{
#if defined(TARGET_DARWIN)
int result = -1;
char given_path[2*MAXPATHLEN];
uint32_t path_size =2*MAXPATHLEN;
result = GetDarwinExecutablePath(given_path, &path_size);
if (result == 0)
{
// Move backwards to last /.
for (int n=strlen(given_path)-1; given_path[n] != '/'; n--)
given_path[n] = '\0';
#if defined(TARGET_DARWIN_IOS)
strcat(given_path, "/XBMCData/XBMCHome/");
#else
// Assume local path inside application bundle.
strcat(given_path, "../Resources/XBMC/");
#endif
// Convert to real path.
char real_path[2*MAXPATHLEN];
if (realpath(given_path, real_path) != NULL)
{
strPath = real_path;
return;
}
}
#endif
size_t last_sep = strHomePath.find_last_of(PATH_SEPARATOR_CHAR);
if (last_sep != string::npos)
strPath = strHomePath.Left(last_sep);
else
strPath = strHomePath;
}
#if defined(_LINUX) && !defined(TARGET_DARWIN)
/* Change strPath accordingly when target is XBMC_HOME and when INSTALL_PATH
* and BIN_INSTALL_PATH differ
*/
CStdString installPath = INSTALL_PATH;
CStdString binInstallPath = BIN_INSTALL_PATH;
if (!strTarget.compare("XBMC_HOME") && installPath.compare(binInstallPath))
{
int pos = strPath.length() - binInstallPath.length();
CStdString tmp = strPath;
tmp.erase(0, pos);
if (!tmp.compare(binInstallPath))
{
strPath.erase(pos, strPath.length());
strPath.append(installPath);
}
}
#endif
}
bool CUtil::IsPicture(const CStdString& strFile)
{
CStdString extension = URIUtils::GetExtension(strFile);
if (extension.IsEmpty())
return false;
extension.ToLower();
if (g_settings.m_pictureExtensions.Find(extension) != -1)
return true;
if (extension == ".tbn" || extension == ".dds")
return true;
return false;
}
bool CUtil::ExcludeFileOrFolder(const CStdString& strFileOrFolder, const CStdStringArray& regexps)
{
if (strFileOrFolder.IsEmpty())
return false;
CRegExp regExExcludes(true); // case insensitive regex
for (unsigned int i = 0; i < regexps.size(); i++)
{
if (!regExExcludes.RegComp(regexps[i].c_str()))
{ // invalid regexp - complain in logs
CLog::Log(LOGERROR, "%s: Invalid exclude RegExp:'%s'", __FUNCTION__, regexps[i].c_str());
continue;
}
if (regExExcludes.RegFind(strFileOrFolder) > -1)
{
CLog::Log(LOGDEBUG, "%s: File '%s' excluded. (Matches exclude rule RegExp:'%s')", __FUNCTION__, strFileOrFolder.c_str(), regexps[i].c_str());
return true;
}
}
return false;
}
void CUtil::GetFileAndProtocol(const CStdString& strURL, CStdString& strDir)
{
strDir = strURL;
if (!URIUtils::IsRemote(strURL)) return ;
if (URIUtils::IsDVD(strURL)) return ;
CURL url(strURL);
strDir.Format("%s://%s", url.GetProtocol().c_str(), url.GetFileName().c_str());
}
int CUtil::GetDVDIfoTitle(const CStdString& strFile)
{
CStdString strFilename = URIUtils::GetFileName(strFile);
if (strFilename.Equals("video_ts.ifo")) return 0;
//VTS_[TITLE]_0.IFO
return atoi(strFilename.Mid(4, 2).c_str());
}
CStdString CUtil::GetFileMD5(const CStdString& strPath)
{
CFile file;
CStdString result;
if (file.Open(strPath))
{
XBMC::XBMC_MD5 md5;
char temp[1024];
int pos=0;
int read=1;
while (read > 0)
{
read = file.Read(temp,1024);
pos += read;
md5.append(temp,read);
}
md5.getDigest(result);
file.Close();
}
return result;
}
bool CUtil::GetDirectoryName(const CStdString& strFileName, CStdString& strDescription)
{
CStdString strFName = URIUtils::GetFileName(strFileName);
strDescription = strFileName.Left(strFileName.size() - strFName.size());
URIUtils::RemoveSlashAtEnd(strDescription);
int iPos = strDescription.ReverseFind("\\");
if (iPos < 0)
iPos = strDescription.ReverseFind("/");
if (iPos >= 0)
{
CStdString strTmp = strDescription.Right(strDescription.size()-iPos-1);
strDescription = strTmp;//strDescription.Right(strDescription.size() - iPos - 1);
}
else if (strDescription.size() <= 0)
strDescription = strFName;
return true;
}
void CUtil::GetDVDDriveIcon( const CStdString& strPath, CStdString& strIcon )
{
if ( !g_mediaManager.IsDiscInDrive() )
{
strIcon = "DefaultDVDEmpty.png";
return ;
}
if ( URIUtils::IsDVD(strPath) )
{
#ifdef HAS_DVD_DRIVE
CCdInfo* pInfo = g_mediaManager.GetCdInfo();
// xbox DVD
if ( pInfo != NULL && pInfo->IsUDFX( 1 ) )
{
strIcon = "DefaultXboxDVD.png";
return ;
}
#endif
strIcon = "DefaultDVDRom.png";
return ;
}
if ( URIUtils::IsISO9660(strPath) )
{
#ifdef HAS_DVD_DRIVE
CCdInfo* pInfo = g_mediaManager.GetCdInfo();
if ( pInfo != NULL && pInfo->IsVideoCd( 1 ) )
{
strIcon = "DefaultVCD.png";
return ;
}
#endif
strIcon = "DefaultDVDRom.png";
return ;
}
if ( URIUtils::IsCDDA(strPath) )
{
strIcon = "DefaultCDDA.png";
return ;
}
}
void CUtil::RemoveTempFiles()
{
CStdString searchPath = g_settings.GetDatabaseFolder();
CFileItemList items;
if (!XFILE::CDirectory::GetDirectory(searchPath, items, ".tmp", DIR_FLAG_NO_FILE_DIRS))
return;
for (int i = 0; i < items.Size(); ++i)
{
if (items[i]->m_bIsFolder)
continue;
XFILE::CFile::Delete(items[i]->GetPath());
}
}
void CUtil::ClearSubtitles()
{
//delete cached subs
CFileItemList items;
CDirectory::GetDirectory("special://temp/",items);
for( int i=0;i<items.Size();++i)
{
if (!items[i]->m_bIsFolder)
{
if ( items[i]->GetPath().Find("subtitle") >= 0 || items[i]->GetPath().Find("vobsub_queue") >= 0 )
{
CLog::Log(LOGDEBUG, "%s - Deleting temporary subtitle %s", __FUNCTION__, items[i]->GetPath().c_str());
CFile::Delete(items[i]->GetPath());
}
}
}
}
void CUtil::ClearTempFonts()
{
CStdString searchPath = "special://temp/fonts/";
if (!CFile::Exists(searchPath))
return;
CFileItemList items;
CDirectory::GetDirectory(searchPath, items, "", DIR_FLAG_NO_FILE_DIRS | DIR_FLAG_BYPASS_CACHE);
for (int i=0; i<items.Size(); ++i)
{
if (items[i]->m_bIsFolder)
continue;
CFile::Delete(items[i]->GetPath());
}
}
static const char * sub_exts[] = { ".utf", ".utf8", ".utf-8", ".sub", ".srt", ".smi", ".rt", ".txt", ".ssa", ".aqt", ".jss", ".ass", ".idx", NULL};
int64_t CUtil::ToInt64(uint32_t high, uint32_t low)
{
int64_t n;
n = high;
n <<= 32;
n += low;
return n;
}
CStdString CUtil::GetNextFilename(const CStdString &fn_template, int max)
{
if (!fn_template.Find("%03d"))
return "";
CStdString searchPath;
URIUtils::GetDirectory(fn_template, searchPath);
CStdString mask = URIUtils::GetExtension(fn_template);
CStdString name;
name.Format(fn_template.c_str(), 0);
CFileItemList items;
if (!CDirectory::GetDirectory(searchPath, items, mask, DIR_FLAG_NO_FILE_DIRS))
return name;
items.SetFastLookup(true);
for (int i = 0; i <= max; i++)
{
CStdString name;
name.Format(fn_template.c_str(), i);
if (!items.Get(name))
return name;
}
return "";
}
CStdString CUtil::GetNextPathname(const CStdString &path_template, int max)
{
if (!path_template.Find("%04d"))
return "";
for (int i = 0; i <= max; i++)
{
CStdString name;
name.Format(path_template.c_str(), i);
if (!CFile::Exists(name))
return name;
}
return "";
}
void CUtil::Tokenize(const CStdString& path, vector<CStdString>& tokens, const string& delimiters)
{
// Tokenize ripped from http://www.linuxselfhelp.com/HOWTO/C++Programming-HOWTO-7.html
// Skip delimiters at beginning.
string::size_type lastPos = path.find_first_not_of(delimiters, 0);
// Find first "non-delimiter".
string::size_type pos = path.find_first_of(delimiters, lastPos);
while (string::npos != pos || string::npos != lastPos)
{
// Found a token, add it to the vector.
tokens.push_back(path.substr(lastPos, pos - lastPos));
// Skip delimiters. Note the "not_of"
lastPos = path.find_first_not_of(delimiters, pos);
// Find next "non-delimiter"
pos = path.find_first_of(delimiters, lastPos);
}
}
void CUtil::TakeScreenshot(const CStdString &filename, bool sync)
{
int width;
int height;
int stride;
unsigned char* outpixels = NULL;
#ifdef HAS_DX
LPDIRECT3DSURFACE9 lpSurface = NULL, lpBackbuffer = NULL;
g_graphicsContext.Lock();
if (g_application.IsPlayingVideo())
{
#ifdef HAS_VIDEO_PLAYBACK
g_renderManager.SetupScreenshot();
#endif
}
g_application.RenderNoPresent();
if (FAILED(g_Windowing.Get3DDevice()->CreateOffscreenPlainSurface(g_Windowing.GetWidth(), g_Windowing.GetHeight(), D3DFMT_X8R8G8B8, D3DPOOL_SYSTEMMEM, &lpSurface, NULL)))
return;
if (FAILED(g_Windowing.Get3DDevice()->GetRenderTarget(0, &lpBackbuffer)))
return;
// now take screenshot
if (SUCCEEDED(g_Windowing.Get3DDevice()->GetRenderTargetData(lpBackbuffer, lpSurface)))
{
D3DLOCKED_RECT lr;
D3DSURFACE_DESC desc;
lpSurface->GetDesc(&desc);
if (SUCCEEDED(lpSurface->LockRect(&lr, NULL, D3DLOCK_READONLY)))
{
width = desc.Width;
height = desc.Height;
stride = lr.Pitch;
outpixels = new unsigned char[height * stride];
memcpy(outpixels, lr.pBits, height * stride);
lpSurface->UnlockRect();
}
else
{
CLog::Log(LOGERROR, "%s LockRect failed", __FUNCTION__);
}
}
else
{
CLog::Log(LOGERROR, "%s GetBackBuffer failed", __FUNCTION__);
}
lpSurface->Release();
lpBackbuffer->Release();
g_graphicsContext.Unlock();
#elif defined(HAS_GL) || defined(HAS_GLES)
g_graphicsContext.BeginPaint();
if (g_application.IsPlayingVideo())
{
#ifdef HAS_VIDEO_PLAYBACK
g_renderManager.SetupScreenshot();
#endif
}
g_application.RenderNoPresent();
#ifndef HAS_GLES
glReadBuffer(GL_BACK);
#endif
//get current viewport
GLint viewport[4];
glGetIntegerv(GL_VIEWPORT, viewport);
width = viewport[2] - viewport[0];
height = viewport[3] - viewport[1];
stride = width * 4;
unsigned char* pixels = new unsigned char[stride * height];
//read pixels from the backbuffer
#if HAS_GLES == 2
glReadPixels(viewport[0], viewport[1], viewport[2], viewport[3], GL_RGBA, GL_UNSIGNED_BYTE, (GLvoid*)pixels);
#else
glReadPixels(viewport[0], viewport[1], viewport[2], viewport[3], GL_BGRA, GL_UNSIGNED_BYTE, (GLvoid*)pixels);
#endif
g_graphicsContext.EndPaint();
//make a new buffer and copy the read image to it with the Y axis inverted
outpixels = new unsigned char[stride * height];
for (int y = 0; y < height; y++)
{
#ifdef HAS_GLES
// we need to save in BGRA order so XOR Swap RGBA -> BGRA
unsigned char* swap_pixels = pixels + (height - y - 1) * stride;
for (int x = 0; x < width; x++, swap_pixels+=4)
{
std::swap(swap_pixels[0], swap_pixels[2]);
}
#endif
memcpy(outpixels + y * stride, pixels + (height - y - 1) * stride, stride);
}
delete [] pixels;
#else
//nothing to take a screenshot from
return;
#endif
if (!outpixels)
{
CLog::Log(LOGERROR, "Screenshot %s failed", filename.c_str());
return;
}
CLog::Log(LOGDEBUG, "Saving screenshot %s", filename.c_str());
//set alpha byte to 0xFF
for (int y = 0; y < height; y++)
{
unsigned char* alphaptr = outpixels - 1 + y * stride;
for (int x = 0; x < width; x++)
*(alphaptr += 4) = 0xFF;
}
//if sync is true, the png file needs to be completely written when this function returns
if (sync)
{
if (!CPicture::CreateThumbnailFromSurface(outpixels, width, height, stride, filename))
CLog::Log(LOGERROR, "Unable to write screenshot %s", filename.c_str());
delete [] outpixels;
}
else
{
//make sure the file exists to avoid concurrency issues
FILE* fp = fopen(filename.c_str(), "w");
if (fp)
fclose(fp);
else
CLog::Log(LOGERROR, "Unable to create file %s", filename.c_str());
//write .png file asynchronous with CThumbnailWriter, prevents stalling of the render thread
//outpixels is deleted from CThumbnailWriter
CThumbnailWriter* thumbnailwriter = new CThumbnailWriter(outpixels, width, height, stride, filename);
CJobManager::GetInstance().AddJob(thumbnailwriter, NULL);
}
}
void CUtil::TakeScreenshot()
{
static bool savingScreenshots = false;
static vector<CStdString> screenShots;
bool promptUser = false;
// check to see if we have a screenshot folder yet
CStdString strDir = g_guiSettings.GetString("debug.screenshotpath", false);
if (strDir.IsEmpty())
{
strDir = "special://temp/";
if (!savingScreenshots)
{
promptUser = true;
savingScreenshots = true;
screenShots.clear();
}
}
URIUtils::RemoveSlashAtEnd(strDir);
if (!strDir.IsEmpty())
{
CStdString file = CUtil::GetNextFilename(URIUtils::AddFileToFolder(strDir, "screenshot%03d.png"), 999);
if (!file.IsEmpty())
{
TakeScreenshot(file, false);
if (savingScreenshots)
screenShots.push_back(file);