From 282a837317be85ba677dd075e077dd467c027465 Mon Sep 17 00:00:00 2001 From: Jason Ekstrand Date: Tue, 12 Jan 2016 15:35:00 -0800 Subject: [PATCH] i965: Implement nir_op_fquantize2f16 --- src/mesa/drivers/dri/i965/brw_fs_nir.cpp | 13 +++++++++++++ src/mesa/drivers/dri/i965/brw_vec4_nir.cpp | 10 ++++++++++ 2 files changed, 23 insertions(+) diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp index 62133784dcf..ffb805965b3 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp @@ -943,6 +943,19 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr) inst->saturate = instr->dest.saturate; break; + case nir_op_fquantize2f16: { + fs_reg tmp = bld.vgrf(BRW_REGISTER_TYPE_D); + + /* The destination stride must be at least as big as the source stride. */ + tmp.type = BRW_REGISTER_TYPE_W; + tmp.stride = 2; + + bld.emit(BRW_OPCODE_F32TO16, tmp, op[0]); + inst = bld.emit(BRW_OPCODE_F16TO32, result, tmp); + inst->saturate = instr->dest.saturate; + break; + } + case nir_op_fmin: case nir_op_imin: case nir_op_umin: diff --git a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp index 37f517d4efd..77a2f8b85fb 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp +++ b/src/mesa/drivers/dri/i965/brw_vec4_nir.cpp @@ -1177,6 +1177,16 @@ vec4_visitor::nir_emit_alu(nir_alu_instr *instr) inst->saturate = instr->dest.saturate; break; + case nir_op_fquantize2f16: { + /* See also vec4_visitor::emit_pack_half_2x16() */ + src_reg tmp = src_reg(this, glsl_type::uvec4_type); + + emit(F32TO16(dst_reg(tmp), op[0])); + inst = emit(F16TO32(dst, tmp)); + inst->saturate = instr->dest.saturate; + break; + } + case nir_op_fmin: case nir_op_imin: case nir_op_umin: -- 2.30.2