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i965/gs/scalar: Fix load input for doubles

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Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
Cc: "12.0" <mesa-stable@lists.freedesktop.org>
This commit is contained in:
Samuel Iglesias Gonsálvez
2016-05-27 11:59:48 +02:00
parent 2d6f82a294
commit 2b648ec17c
1 changed files with 53 additions and 17 deletions
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70
src/mesa/drivers/dri/i965/brw_fs_nir.cpp
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@@ -2088,24 +2088,60 @@ fs_visitor::emit_gs_input_load(const fs_reg &dst,
} }
fs_inst *inst; fs_inst *inst;
if (offset_const) {
/* Constant indexing - use global offset. */
inst = bld.emit(SHADER_OPCODE_URB_READ_SIMD8, dst, icp_handle);
inst->offset = base_offset + offset_const->u32[0];
inst->base_mrf = -1;
inst->mlen = 1;
inst->regs_written = num_components;
} else {
/* Indirect indexing - use per-slot offsets as well. */
const fs_reg srcs[] = { icp_handle, get_nir_src(offset_src) };
fs_reg payload = bld.vgrf(BRW_REGISTER_TYPE_UD, 2);
bld.LOAD_PAYLOAD(payload, srcs, ARRAY_SIZE(srcs), 0);
inst = bld.emit(SHADER_OPCODE_URB_READ_SIMD8_PER_SLOT, dst, payload); fs_reg tmp_dst = dst;
inst->offset = base_offset; fs_reg indirect_offset = get_nir_src(offset_src);
inst->base_mrf = -1; unsigned num_iterations = 1;
inst->mlen = 2; unsigned orig_num_components = num_components;
inst->regs_written = num_components;
if (type_sz(dst.type) == 8) {
if (num_components > 2) {
num_iterations = 2;
num_components = 2;
}
fs_reg tmp = fs_reg(VGRF, alloc.allocate(4), dst.type);
tmp_dst = tmp;
}
for (unsigned iter = 0; iter < num_iterations; iter++) {
if (offset_const) {
/* Constant indexing - use global offset. */
inst = bld.emit(SHADER_OPCODE_URB_READ_SIMD8, tmp_dst, icp_handle);
inst->offset = base_offset + offset_const->u32[0];
inst->base_mrf = -1;
inst->mlen = 1;
inst->regs_written = num_components * type_sz(tmp_dst.type) / 4;
} else {
/* Indirect indexing - use per-slot offsets as well. */
const fs_reg srcs[] = { icp_handle, indirect_offset };
fs_reg payload = bld.vgrf(BRW_REGISTER_TYPE_UD, 2);
bld.LOAD_PAYLOAD(payload, srcs, ARRAY_SIZE(srcs), 0);
inst = bld.emit(SHADER_OPCODE_URB_READ_SIMD8_PER_SLOT, tmp_dst, payload);
inst->offset = base_offset;
inst->base_mrf = -1;
inst->mlen = 2;
inst->regs_written = num_components * type_sz(tmp_dst.type) / 4;
}
if (type_sz(dst.type) == 8) {
shuffle_32bit_load_result_to_64bit_data(
bld, tmp_dst, retype(tmp_dst, BRW_REGISTER_TYPE_F), num_components);
for (unsigned c = 0; c < num_components; c++)
bld.MOV(offset(dst, bld, iter * 2 + c), offset(tmp_dst, bld, c));
}
if (num_iterations > 1) {
num_components = orig_num_components - 2;
if(offset_const) {
base_offset++;
} else {
fs_reg new_indirect = bld.vgrf(BRW_REGISTER_TYPE_UD, 1);
bld.ADD(new_indirect, indirect_offset, brw_imm_ud(1u));
indirect_offset = new_indirect;
}
}
} }
if (is_point_size) { if (is_point_size) {