130 lines
3.7 KiB
C
130 lines
3.7 KiB
C
/*
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* Copyright 2012-15 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: AMD
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*
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*/
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#ifndef __DAL_FIXED32_32_H__
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#define __DAL_FIXED32_32_H__
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#include "os_types.h"
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struct fixed32_32 {
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uint64_t value;
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};
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static const struct fixed32_32 dal_fixed32_32_zero = { 0 };
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static const struct fixed32_32 dal_fixed32_32_one = { 0x100000000LL };
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static const struct fixed32_32 dal_fixed32_32_half = { 0x80000000LL };
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struct fixed32_32 dal_fixed32_32_from_fraction(uint32_t n, uint32_t d);
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static inline struct fixed32_32 dal_fixed32_32_from_int(uint32_t value)
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{
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struct fixed32_32 fx;
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fx.value = (uint64_t)value<<32;
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return fx;
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}
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struct fixed32_32 dal_fixed32_32_add(
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struct fixed32_32 lhs,
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struct fixed32_32 rhs);
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struct fixed32_32 dal_fixed32_32_add_int(
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struct fixed32_32 lhs,
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uint32_t rhs);
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struct fixed32_32 dal_fixed32_32_sub(
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struct fixed32_32 lhs,
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struct fixed32_32 rhs);
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struct fixed32_32 dal_fixed32_32_sub_int(
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struct fixed32_32 lhs,
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uint32_t rhs);
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struct fixed32_32 dal_fixed32_32_mul(
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struct fixed32_32 lhs,
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struct fixed32_32 rhs);
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struct fixed32_32 dal_fixed32_32_mul_int(
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struct fixed32_32 lhs,
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uint32_t rhs);
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struct fixed32_32 dal_fixed32_32_div(
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struct fixed32_32 lhs,
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struct fixed32_32 rhs);
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struct fixed32_32 dal_fixed32_32_div_int(
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struct fixed32_32 lhs,
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uint32_t rhs);
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static inline struct fixed32_32 dal_fixed32_32_min(struct fixed32_32 lhs,
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struct fixed32_32 rhs)
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{
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return (lhs.value < rhs.value) ? lhs : rhs;
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}
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static inline struct fixed32_32 dal_fixed32_32_max(struct fixed32_32 lhs,
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struct fixed32_32 rhs)
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{
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return (lhs.value > rhs.value) ? lhs : rhs;
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}
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static inline bool dal_fixed32_32_gt(struct fixed32_32 lhs, struct fixed32_32 rhs)
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{
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return lhs.value > rhs.value;
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}
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static inline bool dal_fixed32_32_gt_int(struct fixed32_32 lhs, uint32_t rhs)
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{
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return lhs.value > ((uint64_t)rhs<<32);
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}
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static inline bool dal_fixed32_32_lt(struct fixed32_32 lhs, struct fixed32_32 rhs)
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{
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return lhs.value < rhs.value;
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}
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static inline bool dal_fixed32_32_lt_int(struct fixed32_32 lhs, uint32_t rhs)
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{
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return lhs.value < ((uint64_t)rhs<<32);
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}
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static inline bool dal_fixed32_32_le(struct fixed32_32 lhs, struct fixed32_32 rhs)
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{
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return lhs.value <= rhs.value;
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}
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static inline bool dal_fixed32_32_le_int(struct fixed32_32 lhs, uint32_t rhs)
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{
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return lhs.value <= ((uint64_t)rhs<<32);
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}
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static inline bool dal_fixed32_32_eq(struct fixed32_32 lhs, struct fixed32_32 rhs)
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{
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return lhs.value == rhs.value;
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}
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uint32_t dal_fixed32_32_ceil(struct fixed32_32 value);
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static inline uint32_t dal_fixed32_32_floor(struct fixed32_32 value)
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{
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return value.value>>32;
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}
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uint32_t dal_fixed32_32_round(struct fixed32_32 value);
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#endif
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