The saturate bit gets communicated as part of the message descriptor, and setting it in the instruction somehow trashes the results.
Fixes piglit general/fog-modes and ext_fog_coord-modes. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=48628 NOTE: This is a candidate for the 8.0 branch. --- src/mesa/drivers/dri/i965/brw_fs_emit.cpp | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/mesa/drivers/dri/i965/brw_fs_emit.cpp b/src/mesa/drivers/dri/i965/brw_fs_emit.cpp index dc5f3e1..9658d91 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_emit.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_emit.cpp @@ -237,6 +237,8 @@ fs_visitor::generate_math_gen4(fs_inst *inst, assert(inst->mlen >= 1); + brw_set_saturate(p, false); + brw_set_compression_control(p, BRW_COMPRESSION_NONE); brw_math(p, dst, op, -- 1.7.10.4 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
