Proper mipmap size allocation for compressed textures
Proper mipmap size allocation for compressed textures

Bug b/119620767

Change-Id: I2d0513ab4947e6794fb5122e625641ed1a7c84cb
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/28108
Tested-by: Alexis Hétu <1c7141772178a7e80858c3db5052b328076f08f4@google.com>
Reviewed-by: Nicolas Capens <51edc787c30f24c4904e8ffbb5523c3a9f7a451d@google.com>

bkaradzic/SwiftShader,google/swiftshader,bkaradzic/SwiftShader,google/swiftshader,google/swiftshader,bkaradzic/SwiftShader,bkaradzic/SwiftShader,bkaradzic/SwiftShader