ui/gfx/half_float.cc

// Copyright (c) 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/gfx/half_float.h"

namespace gfx {

void FloatToHalfFloat(const float* input, HalfFloat* output, size_t num) {
  for (size_t i = 0; i < num; i++) {
    float tmp = input[i] * 1.9259299444e-34f;
    uint32_t tmp2 = *reinterpret_cast<uint32_t*>(&tmp) + (1 << 12);
    output[i] = (tmp2 & 0x80000000UL) >> 16 | (tmp2 >> 13);
  }
}
};