Improve minify test script
#!/bin/bash
-./astcenc/astcenc-avx2-good -tl in.png out-good.png 6x6 -medium
+BLOCK_SIZE=6x6
+QUALITY=-thorough
-./astcenc/astcenc-avx2 -tl in.png out-bad.png 6x6 -medium
+./astcenc/astcenc-avx2-good -tl in.png out-good.png ${BLOCK_SIZE} ${QUALITY} -silent
-./astcenc/astc_test_autoextract 6x6 in.png out-good.png out-bad.png in-min.png
+./astcenc/astcenc-avx2 -tl in.png out-bad.png ${BLOCK_SIZE} ${QUALITY} -silent
+
+compare out-good.png out-bad.png out-vs-out-diff.png
+compare in.png out-bad.png out-vs-in-diff.png
+
+./astcenc/astc_test_autoextract ${BLOCK_SIZE} in.png out-good.png out-bad.png in-min.png
+
+./astcenc/astcenc-avx2-good -tl in-min.png out-min-good.png ${BLOCK_SIZE} ${QUALITY} -silent
+
+./astcenc/astcenc-avx2 -tl in-min.png out-min-bad.png ${BLOCK_SIZE} ${QUALITY} -silent
+
+compare out-min-good.png out-min-bad.png out-min-diff.png
