GLSL spec says that rsq is undefined for src<=0, but the D3D10 spec says it needs to be a NaN, so lets stop taking an absolute value of the source which completely breaks that behavior.
Signed-off-by: Zack Rusin <[email protected]> --- src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c index 1feaa19..8c26918 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c @@ -633,8 +633,6 @@ rsq_emit( struct lp_build_tgsi_context * bld_base, struct lp_build_emit_data * emit_data) { - emit_data->args[0] = lp_build_emit_llvm_unary(bld_base, TGSI_OPCODE_ABS, - emit_data->args[0]); if (bld_base->rsq_action.emit) { bld_base->rsq_action.emit(&bld_base->rsq_action, bld_base, emit_data); } else { -- 1.7.10.4 _______________________________________________ mesa-dev mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-dev
