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#include <caffe2/ideep/ideep_utils.h>
using namespace caffe2;
namespace {
class IDEEPInt8QuantizeOp final : public IDEEPOperator {
public:
USE_IDEEP_DEF_ALIASES();
USE_IDEEP_OPERATOR_FUNCTIONS();
IDEEPInt8QuantizeOp(const OperatorDef& operator_def, Workspace* ws)
: IDEEPOperator(operator_def, ws),
scale_(this->template GetSingleArgument<float>("Y_scale", 1.0)),
zero_point_(
this->template GetSingleArgument<int32_t>("Y_zero_point", 0)) {
if (HasArgument("output_order")) {
Y_fmt_ = static_cast<iformat>(
this->template GetSingleArgument<int>("output_order",
static_cast<int>(iformat::nchw)));
}
CAFFE_ENFORCE(zero_point_ == 0 || zero_point_ == 128,
"Not support this zero point");
Y_data_type_ = zero_point_ == 0 ? idtype::u8 : idtype::s8;
Y_scales_ = ConvertScales({scale_});
}
virtual ~IDEEPInt8QuantizeOp() {}
bool RunOnDevice() override {
const auto& X = Input(0);
CAFFE_ENFORCE(X.get_data_type() == idtype::f32, "Not support data type");
auto* Y = Output(0);
if (Y_fmt_ != iformat::undef) {
Y->init(X.get_desc().to_type(Y_data_type_).to_format(Y_fmt_));
} else {
Y->init(X.get_desc().to_type(Y_data_type_));
}
Y->set_scale(Y_scales_);
Y->feed_from(X);
return true;
}
private:
float scale_;
int32_t zero_point_;
iscale Y_scales_;
idtype Y_data_type_;
iformat Y_fmt_ {iformat::undef};
INPUT_TAGS(INPUT0);
OUTPUT_TAGS(OUTPUT);
};
REGISTER_IDEEP_OPERATOR_WITH_ENGINE(Int8Quantize, DNNLOWP, IDEEPInt8QuantizeOp);
} // namespace
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