bool FileMessageHandler::FindFile(const list<Path>& lps, POVMS_Object& msg, POVMS_Object& result)
{
POVMS_List files;
Path path;
msg.Get(kPOVAttrib_ReadFile, files);
for(int i = 1; i <= files.GetListSize(); i++)
{
POVMS_Attribute attr;
files.GetNth(i, attr);
path = FindFilePath(lps, Path(attr.GetUCS2String()));
if(path.Empty() == false)
break;
}
result.SetUCS2String(kPOVAttrib_ReadFile, path().c_str());
return (path.Empty() == false);
}
// Sets the options to be used on the next render. Accepts a vfeRenderOptions
// instance as its only parameter, and returns any one of a number of possible
// error codes (and sets m_LastError), as documented below:
//
// vfeFailedToInitObject - this is an internal error
// vfeFailedToSetMaxThreads - self-explanatory
// vfeFailedToParseINI - an INI file specified could not be parsed
// vfeFailedToSetSource - the source file specified could not be set
// vfeFailedToParseCommand - a command-line option was invalid
// vfeNoInputFile - no input file specified either directly or via INI
// vfeRenderBlockSizeTooSmall - self-explanatory
// vfeFailedToWriteINI - a request to write the render options to an INI file failed
// vfeUnsupportedOptionCombination - unsupported option combination
//
// If vfeRenderOptions explicitly specifies a source file, it will override
// any set via a parsed INI file. Furthermore, any source file set via a
// command-line option overrides both of the above.
//
// Note that it is your responsibility to add any default INI files that should
// be processed to the INI file list; neither SetOptions() nor any other part
// of the VFE or POV-Ray code will do that for you. This includes non-platform
// specific files such as a potential povray.ini in the CWD.
int vfeSession::SetOptions (vfeRenderOptions& opts)
{
int err;
UCS2 str [MAX_PATH];
POVMSObject obj;
vfeProcessRenderOptions options(this);
m_OutputToFileSet = false;
m_UsingAlpha = false;
m_RenderingAnimation = false;
m_RealTimeRaytracing = false;
m_ClocklessAnimation = false;
m_RenderWidth = m_RenderHeight = 0;
ClearOptions();
if ((err = POVMSObject_New (&obj, kPOVObjectClass_RenderOptions)) != kNoErr)
return (m_LastError = vfeFailedToInitObject) ;
if ((err = POVMSUtil_SetInt (&obj, kPOVAttrib_MaxRenderThreads, opts.m_ThreadCount)) != kNoErr)
return (m_LastError = vfeFailedToSetMaxThreads) ;
// we set this here for potential use by the IO permissions path checking code
m_InputFilename = opts.m_SourceFile;
// most likely povray.ini will be the first INI file processed here (as it's included by default)
for (vector<UCS2String>::iterator i = opts.m_IniFiles.begin(); i != opts.m_IniFiles.end(); i++)
{
// we call TestAccessAllowed() here, even though ParseFile() will do it also, since if
// access is denied, the reason will not be obvious (ParseFile() just returns kCannotOpenFileErr).
if (!TestAccessAllowed (Path(*i), false))
return (m_LastError = vfeIORestrictionDeny);
if ((err = options.ParseFile (UCS2toASCIIString(*i).c_str(), &obj)) != kNoErr)
return (m_LastError = vfeFailedToParseINI) ;
// we keep this up to date since the IO permissions feature will use the current input
// filename to determine the path for default read/write permission in the scene dir.
int n = sizeof (str) ;
if ((err = POVMSUtil_GetUCS2String (&obj, kPOVAttrib_InputFile, str, &n)) == kNoErr)
if (m_InputFilename != str)
m_InputFilename = str;
}
// m_SourceFile overrides any source file set by the INI files
if (opts.m_SourceFile.empty() == false)
{
m_InputFilename = opts.m_SourceFile;
if ((err = POVMSUtil_SetUCS2String (&obj, kPOVAttrib_InputFile, opts.m_SourceFile.c_str())) != kNoErr)
return (m_LastError = vfeFailedToSetSource);
}
// any source file set on the command-line overrides a source file set another way
for (vector<string>::iterator i = opts.m_Commands.begin(); i != opts.m_Commands.end(); i++)
{
if ((err = options.ParseString (i->c_str(), &obj)) != kNoErr)
return (m_LastError = vfeFailedToParseCommand) ;
int n = sizeof (str) ;
if ((err = POVMSUtil_GetUCS2String (&obj, kPOVAttrib_InputFile, str, &n)) == kNoErr)
if (m_InputFilename != str)
m_InputFilename = str;
}
int n = sizeof (str) ;
if ((err = POVMSUtil_GetUCS2String (&obj, kPOVAttrib_InputFile, str, &n)) != kNoErr)
return (m_LastError = vfeNoInputFile);
m_InputFilename = str;
POVMSUtil_GetInt (&obj, kPOVAttrib_Width, &m_RenderWidth) ;
POVMSUtil_GetInt (&obj, kPOVAttrib_Height, &m_RenderHeight) ;
std::list<Path> libpaths;
POVMS_Object ropts (obj) ;
if (ropts.Exist (kPOVAttrib_LibraryPath))
{
POVMS_List pathlist;
ropts.Get (kPOVAttrib_LibraryPath, pathlist) ;
// we take the opportunity to remove any duplicates that are in the path list.
// it's cleaner to do that here, rather than in the INI parser, since it's table-
// driven and doesn't have an explicit function for adding library paths per se.
//
// we use the Path equivalence operator rather than a string compare since
// using Path should handle platform-specific issues like case-sensitivity (or,
// rather, lack thereof). note that at the time of writing, the Path class did
// not yet implement case-insensitive comparisions.
//
// NB while it would of course be more efficient to sort the list so searches are
// faster, we'd have to make a copy of it to do that, as we can't change the order
// of existing entries (that would change the include path search order). it's not
// common to have a lot of include paths, so we just use linear searches.
for (int i = 1; i <= pathlist.GetListSize(); i++)
{
POVMS_Attribute lp;
pathlist.GetNth(i, lp);
Path path(lp.GetUCS2String());
if (find(libpaths.begin(), libpaths.end(), path) == libpaths.end())
libpaths.push_back(path);
}
}
if (opts.m_LibraryPaths.empty() == false)
{
for (vector<UCS2String>::const_iterator i = opts.m_LibraryPaths.begin(); i != opts.m_LibraryPaths.end(); i++)
{
Path path(*i);
if (find(libpaths.begin(), libpaths.end(), path) == libpaths.end())
libpaths.push_back(path);
}
}
if (libpaths.empty() == false)
{
POVMS_List pathlist;
for (list<Path>::iterator i = libpaths.begin(); i != libpaths.end(); i++)
{
POVMS_Attribute attr((*i)().c_str());
pathlist.Append(attr);
}
ropts.Set (kPOVAttrib_LibraryPath, pathlist) ;
}
if (ropts.TryGetBool(kPOVAttrib_RealTimeRaytracing, false) == true)
ropts.SetBool(kPOVAttrib_OutputToFile, false);
m_OutputToFileSet = ropts.TryGetBool(kPOVAttrib_OutputToFile, true);
// this is a bit messy: Grayscale_Output or OutputAlpha may be specified
// in an INI file or elsewhere prior to the output file type being set.
// so we can't check to see if it is supported with that file type
// until all options have been parsed.
if (m_OutputToFileSet)
{
int oft = ropts.TryGetInt(kPOVAttrib_OutputFileType, DEFAULT_OUTPUT_FORMAT);
bool has16BitGrayscale = false;
bool hasAlpha = false;
for (int i = 0; FileTypeTable[i].internalId != 0; i ++)
{
if (oft == FileTypeTable[i].internalId)
{
has16BitGrayscale = FileTypeTable[i].has16BitGrayscale;
hasAlpha = FileTypeTable[i].hasAlpha;
break;
}
}
if (ropts.TryGetBool(kPOVAttrib_GrayscaleOutput, false) && !has16BitGrayscale)
{
AppendStatusMessage ("Grayscale output not currently supported with selected output file type.");
AppendErrorMessage ("Grayscale output not currently supported with selected output file type.") ;
return (m_LastError = vfeUnsupportedOptionCombination);
}
if (ropts.TryGetBool(kPOVAttrib_OutputAlpha, false) && !hasAlpha)
{
AppendWarningMessage ("Warning: Alpha channel output currently not (or not officially) supported with selected output file type.") ;
}
}
if (ropts.TryGetInt(kPOVAttrib_RenderBlockSize, 32) < 4)
return (m_LastError = vfeRenderBlockSizeTooSmall);
if ((ropts.TryGetInt(kPOVAttrib_DisplayGammaType, DEFAULT_DISPLAY_GAMMA_TYPE) == kPOVList_GammaType_PowerLaw) &&
(ropts.TryGetFloat(kPOVAttrib_DisplayGamma, DEFAULT_DISPLAY_GAMMA) < 0.001f))
return (m_LastError = vfeDisplayGammaTooSmall);
if ((ropts.TryGetInt(kPOVAttrib_FileGammaType, DEFAULT_FILE_GAMMA_TYPE) == kPOVList_GammaType_PowerLaw) &&
(ropts.TryGetFloat(kPOVAttrib_FileGamma, DEFAULT_FILE_GAMMA) < 0.001f))
return (m_LastError = vfeFileGammaTooSmall);
n = sizeof (str) ;
if ((err = POVMSUtil_GetUCS2String (&obj, kPOVAttrib_CreateIni, str, &n)) == kNoErr && str [0] != 0)
if ((err = options.WriteFile (UCS2toASCIIString(str).c_str(), &obj)) != kNoErr)
return (m_LastError = vfeFailedToWriteINI);
opts.m_Options = ropts;
m_RenderOptions = opts ;
m_OptionsSet = true;
return (m_LastError = vfeNoError) ;
}