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39 lines
1.5 KiB
C++
39 lines
1.5 KiB
C++
//
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// Fast implementations of powf(x,5/11) and powf(x,11/5) for gamma conversion
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// Copyright 2017 Ken Cooke <ken@highfidelity.io>
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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
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// in 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 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
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// THE SOFTWARE.
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//
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#pragma once
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#ifndef NV_MATH_GAMMA_H
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#define NV_MATH_GAMMA_H
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#include "nvmath.h"
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namespace nv {
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// gamma conversion of float array (in-place is allowed)
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void powf_5_11(const float* src, float* dst, int count);
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void powf_11_5(const float* src, float* dst, int count);
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} // nv namespace
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#endif // NV_MATH_GAMMA_H
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