/* Copyright (C) 2017-2020, Dirk Krause SPDX-License-Identifier: BSD-3-Clause */ /* WARNING: This file was generated by the dkct program (see http://dktools.sourceforge.net/ for details). Changes you make here will be lost if dkct is run again! You should modify the original source and run dkct on it. Original source: dk4pxbit.ctr */ /** @file dk4pxbit.c The dk4pxbit module. */ #line 77 "dk4pxbit.ctr" #include "dk4conf.h" #ifndef DK4PXBIT_H_INCLUDED #include "dk4pxbit.h" #endif #line 86 "dk4pxbit.ctr" /** Bit number values. */ static dk4_px_t dk4pxbit_values[] = { 0x0001U, 0x0002U, 0x0004U, 0x0008U, 0x0010U, 0x0020U, 0x0040U, 0x0080U, 0x0100U, 0x0200U, 0x0400U, 0x0800U, 0x1000U, 0x2000U, 0x4000U, 0x8000U }; /** Maxima values. */ static dk4_px_t dk4pxbit_maxima[] = { 0x0001U, 0x0003U, 0x0007U, 0x000FU, 0x001FU, 0x003FU, 0x007FU, 0x00FFU, 0x01FFU, 0x03FFU, 0x07FFU, 0x0FFFU, 0x1FFFU, 0x3FFFU, 0x7FFFU, 0xFFFFU }; dk4_px_t dk4pxbit_get_bit(size_t bitno) { if ((sizeof(dk4pxbit_values)/sizeof(dk4_px_t)) > bitno) { return (dk4pxbit_values[bitno]); } return ((dk4_px_t)0U); } dk4_px_t dk4pxbit_get_max(size_t bitno) { dk4_px_t back = 0; #line 122 "dk4pxbit.ctr" if (((sizeof(dk4pxbit_maxima)/sizeof(dk4_px_t)) > bitno) && (0 < bitno)) { back = dk4pxbit_maxima[bitno - 1]; } #line 126 "dk4pxbit.ctr" return back; } size_t dk4pxbit_get_bitno(dk4_px_t maxval) { size_t back = 16; size_t i = 15; int cc = 1; for (i = 15; ((i > 0) && (1 == cc)); i--) { if (dk4pxbit_maxima[i - 1] >= maxval) { back = i; } else { cc = 0; } } return back; } /* vim: set ai sw=4 ts=4 : */