UCS2 *Parser::Convert_UTF8_To_UCS2(const unsigned char *text_array, int *char_array_size)
{
POV_PARSER_ASSERT(text_array);
POV_PARSER_ASSERT(char_array_size);
UCS2String s = UTF8toUCS2String(UTF8String(reinterpret_cast<const char*>(text_array)));
UCS2String::size_type len = s.length();
*char_array_size = len;
if (len == 0)
return nullptr;
size_t size = (len+1)*sizeof(UCS2);
UCS2 *char_array = reinterpret_cast<UCS2 *>(POV_MALLOC(size, "Character Array"));
if (char_array == nullptr)
throw POV_EXCEPTION_CODE(kOutOfMemoryErr);
memcpy(char_array, s.c_str(), size);
return char_array;
}
/* TODO FIXME - this is the correct code but it has a bug. The code above is just a hack [trf]
IStream *BackendSceneData::ReadFile(POVMSContext ctx, const UCS2String& filename, unsigned int stype)
{
UCS2String scenefile(filename);
UCS2String localfile;
UCS2String fileurl;
// see if the file is available locally
FilenameToFilenameMap::iterator ilocalfile(scene2LocalFiles.find(scenefile));
// if available locally, open it end return
if(ilocalfile != scene2LocalFiles.end())
return NewIStream(ilocalfile->second.c_str(), stype);
// see if the file is available as temporary file
FilenameToFilenameMap::iterator itempfile(scene2TempFiles.find(scenefile));
// if available as temporary file, open it end return
if(itempfile != scene2TempFiles.end())
return NewIStream(itempfile->second.c_str(), stype);
// otherwise, request the file
RenderBackend::SendReadFile(ctx, sceneId, frontendAddress, scenefile, localfile, fileurl);
// if it is available locally, add it to the map and then open it
if(localfile.length() > 0)
{
scene2LocalFiles[scenefile] = localfile;
local2SceneFiles[localfile] = scenefile;
return NewIStream(localfile.c_str(), stype);
}
// if it is available remotely ...
if(fileurl.length() > 0)
{
// create a temporary file
UCS2String tempname = POV_PLATFORM_BASE.CreateTemporaryFile();
OStream *tempfile = NewOStream(tempname.c_str(), stype, false);
if(tempfile == NULL)
{
POV_PLATFORM_BASE.DeleteTemporaryFile(tempname);
throw POV_EXCEPTION_CODE(kCannotOpenFileErr);
}
// download the file from the URL
// TODO - handle referrer
if(POV_PLATFORM_BASE.ReadFileFromURL(tempfile, fileurl) == false)
{
delete tempfile;
POV_PLATFORM_BASE.DeleteTemporaryFile(tempname);
throw POV_EXCEPTION_CODE(kNetworkConnectionErr);
}
delete tempfile;
// add the temporary file to the map
scene2TempFiles[scenefile] = tempname;
temp2SceneFiles[tempname] = scenefile;
return NewIStream(tempname.c_str(), stype);
}
// file not found
return NULL;
}
*/
OStream *BackendSceneData::CreateFile(POVMSContext ctx, const UCS2String& filename, unsigned int stype, bool append)
{
UCS2String scenefile(filename);
#ifdef USE_SCENE_FILE_MAPPING
// see if the file is available as temporary file
FilenameToFilenameMap::iterator itempfile(scene2TempFiles.find(scenefile));
// if available as temporary file, open it end return
if(itempfile != scene2TempFiles.end())
return NewOStream(itempfile->second.c_str(), stype, append);
// otherwise, create a temporary file ...
UCS2String tempname = POV_PLATFORM_BASE.CreateTemporaryFile();
OStream *tempfile = NewOStream(tempname.c_str(), stype, append);
// failed to open file
if(tempfile == NULL)
return NULL;
// add the temporary file to the map
scene2TempFiles[scenefile] = tempname;
temp2SceneFiles[tempname] = scenefile;
#else
// this is a workaround for the incomplete scene temp file support
// until someone has time to finish it.
OStream *tempfile = NewOStream(scenefile.c_str(), stype, append);
if (tempfile == NULL)
return NULL;
#endif
// let the frontend know that a new file was created
RenderBackend::SendCreatedFile(ctx, sceneId, frontendAddress, scenefile);
return tempfile;
}
IStream *BackendSceneData::ReadFile(POVMSContext ctx, const UCS2String& origname, const UCS2String& filename, unsigned int stype)
{
UCS2String scenefile(filename);
UCS2String localfile;
UCS2String fileurl;
#ifdef USE_SCENE_FILE_MAPPING
// see if the file is available locally
FilenameToFilenameMap::iterator ilocalfile(scene2LocalFiles.find(scenefile));
// if available locally, open it end return
if(ilocalfile != scene2LocalFiles.end())
return NewIStream(ilocalfile->second.c_str(), stype);
// now try the original name as given in the scene
if((ilocalfile = scene2LocalFiles.find(origname)) != scene2LocalFiles.end())
return NewIStream(ilocalfile->second.c_str(), stype);
// see if the file is available as temporary file
FilenameToFilenameMap::iterator itempfile(scene2TempFiles.find(scenefile));
// if available as temporary file, open it end return
if(itempfile != scene2TempFiles.end())
return NewIStream(itempfile->second.c_str(), stype);
// otherwise, request the file
RenderBackend::SendReadFile(ctx, sceneId, frontendAddress, scenefile, localfile, fileurl);
// if it is available locally, add it to the map and then open it
if(localfile.length() > 0)
{
scene2LocalFiles[scenefile] = localfile;
local2SceneFiles[localfile] = scenefile;
// yes this is a hack
scene2LocalFiles[origname] = localfile;
return NewIStream(localfile.c_str(), stype);
}
// if it is available remotely ...
if(fileurl.length() > 0)
{
// create a temporary file
UCS2String tempname = POV_PLATFORM_BASE.CreateTemporaryFile();
OStream *tempfile = NewOStream(tempname.c_str(), stype, false);
if(tempfile == NULL)
{
POV_PLATFORM_BASE.DeleteTemporaryFile(tempname);
throw POV_EXCEPTION_CODE(kCannotOpenFileErr);
}
// download the file from the URL
// TODO - handle referrer
if(POV_PLATFORM_BASE.ReadFileFromURL(tempfile, fileurl) == false)
{
delete tempfile;
POV_PLATFORM_BASE.DeleteTemporaryFile(tempname);
throw POV_EXCEPTION_CODE(kNetworkConnectionErr);
}
delete tempfile;
// add the temporary file to the map
scene2TempFiles[scenefile] = tempname;
temp2SceneFiles[tempname] = scenefile;
return NewIStream(tempname.c_str(), stype);
}
// file not found
return NULL;
#else
return NewIStream(filename.c_str(), stype);
#endif
}
