First off, this needs a different commit message. "float-related functions" isn't particularly descriptive. How about "various rounding functions" because these really are all "rounding modes".
On Fri, Jun 26, 2015 at 1:06 AM, Eduardo Lima Mitev <el...@igalia.com> wrote: > From: Antia Puentes <apuen...@igalia.com> > > Adds NIR ALU operations: > * nir_op_ftrunc > * nir_op_fceil > * nir_op_ffloor > * nir_op_ffrac > * nir_op_fround_even > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89580 > --- > src/mesa/drivers/dri/i965/brw_vec4_nir.cpp | 40 > ++++++++++++++++++++++++++++++ > 1 file changed, 40 insertions(+) > > diff --git a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp > b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp > index 12fdb48..57685bb 100644 > --- a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp > +++ b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp > @@ -855,6 +855,46 @@ vec4_visitor::nir_emit_alu(nir_alu_instr *instr) > break; > } > > + case nir_op_ftrunc: > + inst = emit(RNDZ(dst, op[0])); > + inst->saturate = instr->dest.saturate; > + break; > + > + case nir_op_fceil: { > + /* Get the number of components of the source to create a > + * temporary register with the appropriate glsl type. > + */ > + int num_components = instr->src[0].src.is_ssa ? > + instr->src[0].src.ssa->num_components : > + instr->src[0].src.reg.reg->num_components; > + assert(num_components > 0); > + > + src_reg tmp = src_reg(this, glsl_type::float_type, num_components); We should be able to just do 1 register because each register is already a vec4. > + tmp.swizzle = brw_swizzle_for_size(num_components); > + > + op[0].negate = !op[0].negate; > + emit(RNDD(dst_reg(tmp), op[0])); > + tmp.negate = true; > + inst = emit(MOV(dst, tmp)); > + inst->saturate = instr->dest.saturate; > + break; > + } > + > + case nir_op_ffloor: > + inst = emit(RNDD(dst, op[0])); > + inst->saturate = instr->dest.saturate; > + break; > + > + case nir_op_ffract: > + inst = emit(FRC(dst, op[0])); > + inst->saturate = instr->dest.saturate; > + break; > + > + case nir_op_fround_even: > + inst = emit(RNDE(dst, op[0])); > + inst->saturate = instr->dest.saturate; > + break; > + > default: > unreachable("Unimplemented ALU operation"); > } > -- > 2.1.4 > > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/mesa-dev _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
