From 0195299c868ec99bc6c595c641da81bb2632252e Mon Sep 17 00:00:00 2001 From: Jason Ekstrand Date: Mon, 6 Jun 2016 19:15:39 -0700 Subject: [PATCH] i965/fs: Use a default Y coordinate of 0 for TXF on gen9+ Previously, we were incrementing length but not actually putting anything in the Y coordinate. This meant that 1-D TXF operations had a garbage array index. If the surface is emitted as 1-D non-array, the coordinate gets discarded and it works fine. If it happens to be bound as an array surface, it may count as an out-of-bounds array access and you get zero. Reviewed-by: Ian Romanick Cc: "11.1 11.2 12.0" --- src/mesa/drivers/dri/i965/brw_fs.cpp | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index 09b0431..17673f8 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -4264,6 +4264,8 @@ lower_sampler_logical_send_gen7(const fs_builder &bld, fs_inst *inst, opcode op, if (coord_components >= 2) { bld.MOV(retype(sources[length], BRW_REGISTER_TYPE_D), offset(coordinate, bld, 1)); + } else { + sources[length] = brw_imm_d(0); } length++; } -- 2.7.4