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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkHalf_DEFINED
#define SkHalf_DEFINED
#include "SkTypes.h"
// 16-bit floating point value
// format is 1 bit sign, 5 bits exponent, 10 bits mantissa
// only used for storage
typedef uint16_t SkHalf;
#define SK_HalfMin 0x0400 // 2^-24 (minimum positive normal value)
#define SK_HalfMax 0x7bff // 65504
#define SK_HalfEpsilon 0x1400 // 2^-10
// convert between half and single precision floating point
float SkHalfToFloat(SkHalf h);
SkHalf SkFloatToHalf(float f);
#endif
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