diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_blorp.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_blorp.cpp b/src/mesa/drivers/dri/i965/brw_blorp.cpp index f71db4f88d8..c59bb663a76 100644 --- a/src/mesa/drivers/dri/i965/brw_blorp.cpp +++ b/src/mesa/drivers/dri/i965/brw_blorp.cpp @@ -86,7 +86,11 @@ brw_blorp_surface_info::set(struct brw_context *brw, this->brw_surfaceformat = BRW_SURFACEFORMAT_R8_UNORM; break; case MESA_FORMAT_X8_Z24: - /* The miptree consists of 32 bits per pixel, arranged as 24-bit depth + /* It would make sense to use BRW_SURFACEFORMAT_R24_UNORM_X8_TYPELESS + * here, but unfortunately it isn't supported as a render target, which + * would prevent us from blitting to 24-bit depth. + * + * The miptree consists of 32 bits per pixel, arranged as 24-bit depth * values interleaved with 8 "don't care" bits. Since depth values don't * require any blending, it doesn't matter how we interpret the bit * pattern as long as we copy the right amount of data, so just map it |