mirror of https://github.com/buggins/dlangui.git
71 lines
1.9 KiB
D
71 lines
1.9 KiB
D
/*
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Copyright (c) 2015 Timur Gafarov
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Boost Software License - Version 1.0 - August 17th, 2003
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Permission is hereby granted, free of charge, to any person or organization
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obtaining a copy of the software and accompanying documentation covered by
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this license (the "Software") to use, reproduce, display, distribute,
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execute, and transmit the Software, and to prepare derivative works of the
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Software, and to permit third-parties to whom the Software is furnished to
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do so, all subject to the following:
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The copyright notices in the Software and this entire statement, including
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the above license grant, this restriction and the following disclaimer,
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must be included in all copies of the Software, in whole or in part, and
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all derivative works of the Software, unless such copies or derivative
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works are solely in the form of machine-executable object code generated by
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a source language processor.
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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, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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// dimage is actually stripped out part of dlib - just to support reading PNG and JPEG
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module dimage.bitio; //dlib.core.bitio
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/*
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* Bit-level manipulations
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*/
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enum Endian
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{
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Little,
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Big
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}
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T hiNibble(T)(T b)
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{
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return ((b >> 4) & 0x0F);
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}
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T loNibble(T)(T b)
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{
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return (b & 0x0F);
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}
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T swapEndian16(T)(T n)
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{
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return cast(T)((n >> 8) | (n << 8));
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}
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T setBit(T)(T b, uint pos, bool state)
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{
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if (state)
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return cast(T)(b | (1 << pos));
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else
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return cast(T)(b & ~(1 << pos));
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}
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bool getBit(T)(T b, uint pos)
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{
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return ((b & (1 << pos)) != 0);
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}
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