100644 blob 642cd31adf73f6ad655c6958337279d9da5ed596	fetch_sources.py
040000 tree c0d567046e92a70550015c81640bfc9ea96a8bba	glslang
040000 tree 61cce8890695e498604f32df6ec51c5fd1310a5b	libpng
040000 tree 9a7f448cdd32d4a4bd8f3627d6527f5d1dae7b4d	spirv-tools
040000 tree d954c5b05c8cc769e6d76eb6780d78cd72f3bf8e	vulkancts
040000 tree 36b6e0af84ce4e2af172f51f1240460da470ceac	zlib