212 lines
8.6 KiB
C++
212 lines
8.6 KiB
C++
/*
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* Copyright © 2013-2015 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "isl/isl.h"
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#include "brw_fs_surface_builder.h"
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#include "brw_fs.h"
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using namespace brw;
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namespace brw {
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namespace surface_access {
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namespace {
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/**
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* Generate a logical send opcode for a surface message and return
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* the result.
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*/
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fs_reg
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emit_send(const fs_builder &bld, enum opcode opcode,
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const fs_reg &addr, const fs_reg &src, const fs_reg &surface,
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unsigned dims, unsigned arg, unsigned rsize,
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brw_predicate pred = BRW_PREDICATE_NONE)
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{
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/* Reduce the dynamically uniform surface index to a single
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* scalar.
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*/
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const fs_reg usurface = bld.emit_uniformize(surface);
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fs_reg srcs[SURFACE_LOGICAL_NUM_SRCS];
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srcs[SURFACE_LOGICAL_SRC_ADDRESS] = addr;
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srcs[SURFACE_LOGICAL_SRC_DATA] = src;
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srcs[SURFACE_LOGICAL_SRC_SURFACE] = usurface;
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srcs[SURFACE_LOGICAL_SRC_IMM_DIMS] = brw_imm_ud(dims);
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srcs[SURFACE_LOGICAL_SRC_IMM_ARG] = brw_imm_ud(arg);
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const fs_reg dst = bld.vgrf(BRW_REGISTER_TYPE_UD, rsize);
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fs_inst *inst = bld.emit(opcode, dst, srcs, ARRAY_SIZE(srcs));
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inst->size_written = rsize * dst.component_size(inst->exec_size);
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inst->predicate = pred;
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return dst;
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}
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}
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/**
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* Emit an untyped surface read opcode. \p dims determines the number
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* of components of the address and \p size the number of components of
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* the returned value.
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*/
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fs_reg
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emit_untyped_read(const fs_builder &bld,
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const fs_reg &surface, const fs_reg &addr,
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unsigned dims, unsigned size,
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brw_predicate pred)
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{
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return emit_send(bld, SHADER_OPCODE_UNTYPED_SURFACE_READ_LOGICAL,
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addr, fs_reg(), surface, dims, size, size, pred);
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}
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/**
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* Emit an untyped surface write opcode. \p dims determines the number
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* of components of the address and \p size the number of components of
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* the argument.
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*/
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void
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emit_untyped_write(const fs_builder &bld, const fs_reg &surface,
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const fs_reg &addr, const fs_reg &src,
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unsigned dims, unsigned size,
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brw_predicate pred)
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{
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emit_send(bld, SHADER_OPCODE_UNTYPED_SURFACE_WRITE_LOGICAL,
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addr, src, surface, dims, size, 0, pred);
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}
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/**
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* Emit an untyped surface atomic opcode. \p dims determines the number
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* of components of the address and \p rsize the number of components of
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* the returned value (either zero or one).
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*/
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fs_reg
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emit_untyped_atomic(const fs_builder &bld,
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const fs_reg &surface, const fs_reg &addr,
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const fs_reg &src0, const fs_reg &src1,
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unsigned dims, unsigned rsize, unsigned op,
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brw_predicate pred)
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{
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/* FINISHME: Factor out this frequently recurring pattern into a
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* helper function.
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*/
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const unsigned n = (src0.file != BAD_FILE) + (src1.file != BAD_FILE);
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const fs_reg srcs[] = { src0, src1 };
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const fs_reg tmp = bld.vgrf(BRW_REGISTER_TYPE_UD, n);
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bld.LOAD_PAYLOAD(tmp, srcs, n, 0);
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return emit_send(bld, SHADER_OPCODE_UNTYPED_ATOMIC_LOGICAL,
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addr, tmp, surface, dims, op, rsize, pred);
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}
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/**
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* Emit an untyped surface atomic float opcode. \p dims determines the
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* number of components of the address and \p rsize the number of
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* components of the returned value (either zero or one).
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*/
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fs_reg
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emit_untyped_atomic_float(const fs_builder &bld,
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const fs_reg &surface, const fs_reg &addr,
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const fs_reg &src0, const fs_reg &src1,
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unsigned dims, unsigned rsize, unsigned op,
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brw_predicate pred)
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{
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/* FINISHME: Factor out this frequently recurring pattern into a
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* helper function.
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*/
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const unsigned n = (src0.file != BAD_FILE) + (src1.file != BAD_FILE);
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const fs_reg srcs[] = { src0, src1 };
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const fs_reg tmp = bld.vgrf(src0.type, n);
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bld.LOAD_PAYLOAD(tmp, srcs, n, 0);
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return emit_send(bld, SHADER_OPCODE_UNTYPED_ATOMIC_FLOAT_LOGICAL,
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addr, tmp, surface, dims, op, rsize, pred);
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}
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/**
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* Emit a typed surface read opcode. \p dims determines the number of
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* components of the address and \p size the number of components of the
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* returned value.
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*/
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fs_reg
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emit_typed_read(const fs_builder &bld, const fs_reg &surface,
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const fs_reg &addr, unsigned dims, unsigned size)
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{
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return emit_send(bld, SHADER_OPCODE_TYPED_SURFACE_READ_LOGICAL,
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addr, fs_reg(), surface, dims, size, size);
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}
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/**
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* Emit a typed surface write opcode. \p dims determines the number of
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* components of the address and \p size the number of components of the
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* argument.
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*/
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void
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emit_typed_write(const fs_builder &bld, const fs_reg &surface,
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const fs_reg &addr, const fs_reg &src,
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unsigned dims, unsigned size)
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{
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emit_send(bld, SHADER_OPCODE_TYPED_SURFACE_WRITE_LOGICAL,
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addr, src, surface, dims, size, 0);
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}
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/**
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* Emit a typed surface atomic opcode. \p dims determines the number of
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* components of the address and \p rsize the number of components of
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* the returned value (either zero or one).
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*/
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fs_reg
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emit_typed_atomic(const fs_builder &bld, const fs_reg &surface,
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const fs_reg &addr,
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const fs_reg &src0, const fs_reg &src1,
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unsigned dims, unsigned rsize, unsigned op,
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brw_predicate pred)
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{
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/* FINISHME: Factor out this frequently recurring pattern into a
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* helper function.
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*/
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const unsigned n = (src0.file != BAD_FILE) + (src1.file != BAD_FILE);
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const fs_reg srcs[] = { src0, src1 };
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const fs_reg tmp = bld.vgrf(BRW_REGISTER_TYPE_UD, n);
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bld.LOAD_PAYLOAD(tmp, srcs, n, 0);
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return emit_send(bld, SHADER_OPCODE_TYPED_ATOMIC_LOGICAL,
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addr, tmp, surface, dims, op, rsize);
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}
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fs_reg
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emit_byte_scattered_read(const fs_builder &bld,
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const fs_reg &surface, const fs_reg &addr,
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unsigned dims, unsigned size,
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unsigned bit_size, brw_predicate pred)
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{
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return emit_send(bld, SHADER_OPCODE_BYTE_SCATTERED_READ_LOGICAL,
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addr, fs_reg(), surface, dims, bit_size, size, pred);
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}
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void
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emit_byte_scattered_write(const fs_builder &bld, const fs_reg &surface,
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const fs_reg &addr, const fs_reg &src,
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unsigned dims,
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unsigned bit_size, brw_predicate pred)
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{
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emit_send(bld, SHADER_OPCODE_BYTE_SCATTERED_WRITE_LOGICAL,
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addr, src, surface, dims, bit_size, 0, pred);
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}
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}
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}
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