From 036c817f77f71e7c4b17571ae100a9bc93d8fe5b Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Mon, 13 Dec 2010 13:37:54 -0800 Subject: [PATCH] i965: Fix gl_FragCoord.z setup on gen6. Fixes glsl-bug-22603. --- src/mesa/drivers/dri/i965/brw_fs.cpp | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp index c3cbe0df618..4eead32cbbd 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp @@ -474,8 +474,13 @@ fs_visitor::emit_fragcoord_interpolation(ir_variable *ir) wpos.reg_offset++; /* gl_FragCoord.z */ - emit(fs_inst(FS_OPCODE_LINTERP, wpos, this->delta_x, this->delta_y, - interp_reg(FRAG_ATTRIB_WPOS, 2))); + if (intel->gen >= 6) { + emit(fs_inst(BRW_OPCODE_MOV, wpos, + fs_reg(brw_vec8_grf(c->source_depth_reg, 0)))); + } else { + emit(fs_inst(FS_OPCODE_LINTERP, wpos, this->delta_x, this->delta_y, + interp_reg(FRAG_ATTRIB_WPOS, 2))); + } wpos.reg_offset++; /* gl_FragCoord.w: Already set up in emit_interpolation */ -- 2.30.2