C++ Importer::IsExtensionSupported方法代码示例

// ------------------------------------------------------------------------------------------------
// Returns the error text of the last failed import process. 
aiBool aiIsExtensionSupported(const char* szExtension)
{
	ai_assert(NULL != szExtension);
	aiBool candoit=AI_FALSE;
	ASSIMP_BEGIN_EXCEPTION_REGION();

	// FIXME: no need to create a temporary Importer instance just for that .. 
	Assimp::Importer tmp;
	candoit = tmp.IsExtensionSupported(std::string(szExtension)) ? AI_TRUE : AI_FALSE;

	ASSIMP_END_EXCEPTION_REGION(aiBool);
	return candoit;
}

// ------------------------------------------------------------------------------------------------
// Returns the error text of the last failed import process. 
int aiIsExtensionSupported(const char* szExtension)
{
	ai_assert(NULL != szExtension);

	// lock the mutex
#if (defined AI_C_THREADSAFE)
	boost::mutex::scoped_lock lock(gMutex);
#endif

	if (!gActiveImports.empty())	{
		return (int)((*(gActiveImports.begin())).second->IsExtensionSupported( szExtension ));
	}

	// need to create a temporary Importer instance.
	// TODO: Find a better solution ...
	Assimp::Importer* pcTemp = new Assimp::Importer();
	int i = (int)pcTemp->IsExtensionSupported(std::string(szExtension));
	delete pcTemp;
	return i;
}

// ------------------------------------------------------------------------------------------------
// Returns the error text of the last failed import process.
aiBool aiIsExtensionSupported(const char* szExtension)
{
    ai_assert(NULL != szExtension);
    aiBool candoit=AI_FALSE;
    ASSIMP_BEGIN_EXCEPTION_REGION();

#ifdef AI_C_THREADSAFE
    boost::mutex::scoped_lock lock(gMutex);
#endif

    if (!gActiveImports.empty()) {
        return ((*(gActiveImports.begin())).second->IsExtensionSupported( szExtension )) ? AI_TRUE : AI_FALSE;
    }

    // fixme: no need to create a temporary Importer instance just for that ..
    Assimp::Importer tmp;
    candoit = tmp.IsExtensionSupported(std::string(szExtension)) ? AI_TRUE : AI_FALSE;

    ASSIMP_END_EXCEPTION_REGION(aiBool);
    return candoit;
}

//.........这里部分代码省略.........
	// assimp listext
	// List all file extensions supported by Assimp
	if (! strcmp(argv[1], "listext")) {
		aiString s;
		imp.GetExtensionList(s);

		printf("%s\n",s.data);
		return 0;
	}

#ifndef ASSIMP_BUILD_NO_EXPORT
	// assimp listexport
	// List all export file formats supported by Assimp (not the file extensions, just the format identifiers!)
	if (! strcmp(argv[1], "listexport")) {
		aiString s;
		
		for(size_t i = 0, end = exp.GetExportFormatCount(); i < end; ++i) {
			const aiExportFormatDesc* const e = exp.GetExportFormatDescription(i);
			s.Append( e->id );
			if (i!=end-1) {
				s.Append("\n");
			}
		}

		printf("%s\n",s.data);
		return 0;
	}


	// assimp exportinfo
	// stat an export format
	if (! strcmp(argv[1], "exportinfo")) {
		aiString s;

		if (argc<3) {
			printf("Expected file format id\n");
			return -11;
		}

		for(size_t i = 0, end = exp.GetExportFormatCount(); i < end; ++i) {
			const aiExportFormatDesc* const e = exp.GetExportFormatDescription(i);
			if (!strcmp(e->id,argv[2])) {
				printf("%s\n%s\n%s\n",e->id,e->fileExtension,e->description);
				return 0;
			}
		}
		
		printf("Unknown file format id: \'%s\'\n",argv[2]);
		return -12;
	}

	// assimp export
	// Export a model to a file
	if (! strcmp(argv[1], "export")) {
		return Assimp_Export (&argv[2],argc-2);
	}

#endif

	// assimp knowext
	// Check whether a particular file extension is known by us, return 0 on success
	if (! strcmp(argv[1], "knowext")) {
		if (argc<3) {
			printf("Expected file extension");
			return -10;
		}
		const bool b = imp.IsExtensionSupported(argv[2]);
		printf("File extension \'%s\'  is %sknown\n",argv[2],(b?"":"not "));
		return b?0:-1;
	}

	// assimp info
	// Print basic model statistics
	if (! strcmp(argv[1], "info")) {
		return Assimp_Info ((const char**)&argv[2],argc-2);
	}

	// assimp dump 
	// Dump a model to a file 
	if (! strcmp(argv[1], "dump")) {
		return Assimp_Dump (&argv[2],argc-2);
	}

	// assimp extract 
	// Extract an embedded texture from a file
	if (! strcmp(argv[1], "extract")) {
		return Assimp_Extract (&argv[2],argc-2);
	}

	// assimp testbatchload
	// Used by /test/other/streamload.py to load a list of files
	// using the same importer instance to check for incompatible
	// importers.
	if (! strcmp(argv[1], "testbatchload")) {
		return Assimp_TestBatchLoad (&argv[2],argc-2);
	}

	printf("Unrecognized command. Use \'assimp help\' for a detailed command list\n");
	return 1;
}