General

- Added format auto-detection to most loaders
  - Simplified BaseImporter::CanRead() with some utility methods
  - improved fast_atof -> no overruns anymore. Fuck you, irrlicht.
  - added assimp_cmd tool to allow command line model processing. Mainly adebugging tool for internal purposes, but others might find it useful, too.
  - vc8/vc9: revision number is now written to DLL version header
  - mkutil: some batch scripts to simplify tagging & building of release versions
  - some API cleanup
  - fixing some doxygen markup (+now explicit use of @file <filename>)
  - Icon for assimp_view and assimp_cmd

3DS
  - Normal vectors are not anymore inverted in some cases
  - Improved pivot handling
  - Improved handling of x-flipped meshes

Collada
  - fixed a minor bug (visual_scene element)

LWS 
  - WIP implementation. No animations yet, some bugs and crashes.
  - Animation system remains disabled, WIP code
  - many test files for LWS, but most of them test the anim support, which is, read above, currently disabled.

STL
  - fixing a log warning which appears for every model
  - added binary&ascii test spider, exported from truespace

MD3 
  - Cleaning up output tags for automatically joined player models.


IRR
  - Fixing coordinate system issues. 
  - Instance handling improved.
  - Some of the reported crashes not yet fixed.

PretransformVertices
  - Numerous performance improvements.
  - Added config option to preserve the hierarchy during the step.

RemoveRedundantMaterials
  - Added config option to specify a list of materials which are kept in every case.

UNREAL
  - Added support for the old unreal data format (*.a,*.d,*.uc)
  - tested only with exports from Milkshape
  - more Unreal stuff to come soon



git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@356 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/Q3DLoader.cpp

@@ -39,7 +39,9 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ---------------------------------------------------------------------------
 */
 
-/** @file Implementation of the Q3D importer class */
+/** @file  Q3DLoader.cpp
+ *  @brief Implementation of the Q3D importer class
+ */
 
 #include "AssimpPCH.h"
 #ifndef ASSIMP_BUILD_NO_Q3D_IMPORTER
@@ -54,30 +56,34 @@ using namespace Assimp;
 // ------------------------------------------------------------------------------------------------
 // Constructor to be privately used by Importer
 Q3DImporter::Q3DImporter()
-{
-}
+{}
 
 // ------------------------------------------------------------------------------------------------
 // Destructor, private as well 
 Q3DImporter::~Q3DImporter()
-{
-}
+{}
 
 // ------------------------------------------------------------------------------------------------
 // Returns whether the class can handle the format of the given file. 
-bool Q3DImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler) const
+bool Q3DImporter::CanRead( const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const
 {
-	// simple check of file extension is enough for the moment
-	std::string::size_type pos = pFile.find_last_of('.');
-	// no file extension - can't read
-	if( pos == std::string::npos)return false;
+	const std::string extension = GetExtension(pFile);
 
-	std::string extension = pFile.substr( pos);
-	for (std::string::iterator it = extension.begin();
-		it != extension.end(); ++it)
-		*it = ::tolower(*it);
+	if (extension == "q3s" || extension == "q3o")
+		return true;
+	else if (!extension.length() || checkSig)	{
+		if (!pIOHandler)
+			return true;
+		const char* tokens[] = {"quick3Do","quick3Ds"};
+		return SearchFileHeaderForToken(pIOHandler,pFile,tokens,2);
+	}
+	return false;
+}
 
-	return (extension == ".q3o" || extension == ".q3s"); 
+// ------------------------------------------------------------------------------------------------
+void Q3DImporter::GetExtensionList(std::string& append)
+{
+	append.append("*.q3o;*.q3s");
 }
 
 // ------------------------------------------------------------------------------------------------
@@ -91,11 +97,11 @@ void Q3DImporter::InternReadFile( const std::string& pFile,
 	if (stream.GetRemainingSize() < 22)
 		throw new ImportErrorException("File is either empty or corrupt: " + pFile);
 
-	// Check the file signature
+	// Check the file's signature
 	if (ASSIMP_strincmp( (const char*)stream.GetPtr(), "quick3Do", 8 ) &&
 		ASSIMP_strincmp( (const char*)stream.GetPtr(), "quick3Ds", 8 ))
 	{
-		throw new ImportErrorException("No Quick3D file. Signature is: " + 
+		throw new ImportErrorException("Not a Quick3D file. Signature string is: " + 
 			std::string((const char*)stream.GetPtr(),8));
 	}