i965/fs: Add support for non-shadow textureGrad (TXD) on Ivybridge.
This is somewhat ugly, but I couldn't think of a nicer way to handle the
interleaved coordinate/derivative parameter loading.
Ironlake and Sandybridge will still hit an assertion in visit().
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
diff --git a/src/mesa/drivers/dri/i965/brw_fs_emit.cpp b/src/mesa/drivers/dri/i965/brw_fs_emit.cpp
index 6b7c434..844b89b 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_emit.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_emit.cpp
@@ -273,7 +273,8 @@
}
break;
case FS_OPCODE_TXD:
- assert(!"TXD isn't supported on gen5+ yet.");
+ assert(!inst->shadow_compare);
+ msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_DERIVS;
break;
}
} else {