1 files changed, 98 insertions, 0 deletions
diff --git a/thirdparty/oidn/mkl-dnn/src/cpu/simple_q10n.hpp b/thirdparty/oidn/mkl-dnn/src/cpu/simple_q10n.hpp
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+++ b/thirdparty/oidn/mkl-dnn/src/cpu/simple_q10n.hpp
@@ -0,0 +1,98 @@
+/*******************************************************************************
+* Copyright 2017-2018 Intel Corporation
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*******************************************************************************/
+
+#ifndef CPU_SIMPLE_Q10N_HPP
+#define CPU_SIMPLE_Q10N_HPP
+
+#include <assert.h>
+
+#include "c_types_map.hpp"
+#include "math_utils.hpp"
+#include "nstl.hpp"
+#include "type_helpers.hpp"
+#include "utils.hpp"
+
+namespace mkldnn {
+namespace impl {
+namespace cpu {
+
+using namespace mkldnn::impl::math;
+
+template <typename out_t>
+inline out_t round_and_saturate(float f)
+{ return math::saturate<out_t>(out_round<int>(f)); }
+
+/* Quantization with alpha == 1 and beta == 0 */
+template <typename in_t, typename out_t, typename enabled = void>
+struct qz_a1b0 {
+    out_t operator()(in_t in)
+    { return round_and_saturate<out_t>((float)in); }
+};
+
+template <typename in_t, typename out_t>
+struct qz_a1b0<in_t, out_t,
+    typename utils::enable_if<true
+        && nstl::is_integral<in_t>::value
+        && !is_subset<in_t, out_t>::value
+    >::type> {
+    out_t operator()(in_t in) { return math::saturate<out_t>(in); }
+};
+
+template <typename in_t, typename out_t>
+struct qz_a1b0<in_t, out_t,
+    typename utils::enable_if<is_subset<in_t, out_t>::value>::type> {
+    out_t operator()(in_t in) { return (out_t)in; }
+};
+
+/* Quantization with alpha == 1 */
+template <typename in_t, typename out_t> struct qz_a1 {
+    out_t operator()(in_t in, out_t out, float beta)
+    { return round_and_saturate<out_t>((float)in + beta * out); }
+};
+
+template <typename in_t> struct qz_a1<in_t, float> {
+    float operator()(in_t in, float out, float beta)
+    { return (float)in + beta * out; }
+};
+
+/* Quantization with beta == 0 */
+template <typename in_t, typename out_t> struct qz_b0 {
+    out_t operator()(in_t in, float alpha)
+    { return round_and_saturate<out_t>(alpha * in); }
+};
+
+template <typename in_t> struct qz_b0<in_t, float> {
+    float operator()(in_t in, float alpha) { return alpha * in; }
+};
+
+/* Quantization */
+template <typename in_t, typename out_t> struct qz {
+    out_t operator()(in_t in, out_t out, float alpha, float beta) {
+        return round_and_saturate<out_t>(
+                alpha * in + (beta ? beta * out : 0));
+    }
+};
+
+template <typename in_t> struct qz<in_t, float> {
+    float operator()(in_t in, float out, float alpha, float beta)
+    { return alpha * in + (beta ? beta * out : 0); }
+};
+
+}
+}
+}
+
+#endif