52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
/*
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* Copyright © 2022 Imagination Technologies Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* 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 (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* 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 THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ROGUE_CONSTREGS_H
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#define ROGUE_CONSTREGS_H
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#include <stddef.h>
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#include <stdint.h>
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#include "util/macros.h"
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#include "util/u_math.h"
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#define ROGUE_NO_CONST_REG SIZE_MAX
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PUBLIC
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size_t rogue_constreg_lookup(uint32_t value);
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/**
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* \brief Determines whether a given floating point value exists in a constant
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* register.
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*
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* \param[in] value The value required.
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* \return The index of the constant register containing the value, or
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* ROGUE_NO_CONST_REG if the value is not found.
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*/
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static inline size_t rogue_constreg_lookup_float(float value)
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{
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return rogue_constreg_lookup(fui(value));
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}
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#endif /* ROGUE_CONSTREGS_H */
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