Add mName member to aiMesh.

JoinVerticesProcess and SortByPType copy the mesh name to all clone or sub meshes they create.
JoinVerticesProcess' verbose output now prints mesh name, no longer using sprintf (TinyFormatter's age has come).

WARN: This is a public API change (not a breaking one, however).

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@719 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/JoinVerticesProcess.cpp

@@ -49,6 +49,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include "JoinVerticesProcess.h"
 #include "ProcessHelper.h"
 #include "Vertex.h"
+#include "TinyFormatter.h"
 
 using namespace Assimp;
 // ------------------------------------------------------------------------------------------------
@@ -251,13 +252,17 @@ int JoinVerticesProcess::ProcessMesh( aiMesh* pMesh, unsigned int meshIndex)
 	}
 
 	if (!DefaultLogger::isNullLogger() && DefaultLogger::get()->getLogSeverity() == Logger::VERBOSE)	{
-		char szBuff[128]; // should be sufficiently large in every case
-		::sprintf(szBuff,"Mesh %i | Verts in: %i out: %i | ~%.1f%%",
-			meshIndex,
-			pMesh->mNumVertices,
-			(int)uniqueVertices.size(),
-			((pMesh->mNumVertices - uniqueVertices.size()) / (float)pMesh->mNumVertices) * 100.f);
-		DefaultLogger::get()->debug(szBuff);
+		DefaultLogger::get()->debug((Formatter::format(),
+			"Mesh ",meshIndex,
+			" (",
+			(pMesh->mName.length ? pMesh->mName.data : "unnamed"),
+			") | Verts in: ",pMesh->mNumVertices,
+			" out: ",
+			uniqueVertices.size(),
+			" | ~",
+			((pMesh->mNumVertices - uniqueVertices.size()) / (float)pMesh->mNumVertices) * 100.f,
+			"%"
+		));
 	}
 
 	// replace vertex data with the unique data sets