tree 632b84144b131c77b5e72d9ab1b3a2cf90cc4b4b
parent 0516bb84e96ec83cd810477c4dc3a550d8796f1b
author Bill Hollings <bill.hollings@brenwill.com> 1636478031 -0500
committer Bill Hollings <bill.hollings@brenwill.com> 1636478031 -0500

Restore support for BC1_RGB compressed format.

For Vulkan BC1_RGB formats, swizzle alpha of substituted
Metal BC1_RGBA to 1.0, to return value expected by Vulkan.