Fixes broken rendering if these MRFs contained anything other than zero. NOTE: This is a candidate for stable branches. Signed-off-by: Chris Forbes <chr...@ijw.co.nz> --- src/mesa/drivers/dri/i965/brw_fs_visitor.cpp | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp index 964ad40..c3eecfa 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp @@ -868,7 +868,12 @@ fs_visitor::emit_texture_gen4(ir_texture *ir, fs_reg dst, fs_reg coordinate, emit(MOV(fs_reg(MRF, base_mrf + mlen + i), coordinate)); coordinate.reg_offset++; } - /* gen4's SIMD8 sampler always has the slots for u,v,r present. */ + + /* gen4's SIMD8 sampler always has the slots for u,v,r present. + * the unused slots must be zeroed.*/ + for (int i = ir->coordinate->type->vector_elements; i<3; i++) { + emit(MOV(fs_reg(MRF, base_mrf + mlen + i), fs_reg(0.0f))); + } mlen += 3; if (ir->op == ir_tex) { -- 1.8.4 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev