gfxprimitives: some cleanup. also, in the GD image loading part, use SDL_LoadBMP for bmp loading because GD fails somehow
gfxprimitives: some cleanup. also, in the GD image loading part, use SDL_LoadBMP for bmp loading because GD fails somehow

ProfessorKaos64/openlierox,ProfessorKaos64/openlierox,ProfessorKaos64/openlierox,ProfessorKaos64/openlierox,ProfessorKaos64/openlierox,ProfessorKaos64/openlierox,ProfessorKaos64/openlierox