PIPE_FORMAT_A8R8G8B8_SRGB , plain, 1, 1, un8 , un8 , un8 , un8 , yzwx, srgb
PIPE_FORMAT_X8R8G8B8_SRGB , plain, 1, 1, un8 , un8 , un8 , un8 , yzw1, srgb
-# Signed formats (typically used for bump map textures)
-PIPE_FORMAT_R8G8B8X8_SNORM , plain, 1, 1, sn8 , sn8 , sn8 , sn8 , xyz1, rgb
+# Mixed-sign formats (typically used for bump map textures)
PIPE_FORMAT_R8SG8SB8UX8U_NORM , plain, 1, 1, sn8 , sn8 , un8 , x8 , xyz1, rgb
PIPE_FORMAT_R5SG5SB6U_NORM , plain, 1, 1, sn5 , sn5 , un6 , , xyz1, rgb