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POKITTO_CORE/PokittoItoa.cpp@11:02ad9c807a21, 2017-10-15 (annotated)

Committer:
spinal
Date:
Sun Oct 15 18:03:02 2017 +0000
Revision:
11:02ad9c807a21
Parent:
0:e8b8f36b4505 
fixed 4color refreshRegion code

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pokitto 0:e8b8f36b4505 1 /**************************************************************************/
Pokitto 0:e8b8f36b4505 2 /*!
Pokitto 0:e8b8f36b4505 3 @file PokittoItoa.cpp
Pokitto 0:e8b8f36b4505 4 @author Jonne Valola
Pokitto 0:e8b8f36b4505 5
Pokitto 0:e8b8f36b4505 6 @section LICENSE
Pokitto 0:e8b8f36b4505 7
Pokitto 0:e8b8f36b4505 8 Software License Agreement (BSD License)
Pokitto 0:e8b8f36b4505 9
Pokitto 0:e8b8f36b4505 10 Copyright (c) 2016, Jonne Valola
Pokitto 0:e8b8f36b4505 11 All rights reserved.
Pokitto 0:e8b8f36b4505 12
Pokitto 0:e8b8f36b4505 13 Redistribution and use in source and binary forms, with or without
Pokitto 0:e8b8f36b4505 14 modification, are permitted provided that the following conditions are met:
Pokitto 0:e8b8f36b4505 15 1. Redistributions of source code must retain the above copyright
Pokitto 0:e8b8f36b4505 16 notice, this list of conditions and the following disclaimer.
Pokitto 0:e8b8f36b4505 17 2. Redistributions in binary form must reproduce the above copyright
Pokitto 0:e8b8f36b4505 18 notice, this list of conditions and the following disclaimer in the
Pokitto 0:e8b8f36b4505 19 documentation and/or other materials provided with the distribution.
Pokitto 0:e8b8f36b4505 20 3. Neither the name of the copyright holders nor the
Pokitto 0:e8b8f36b4505 21 names of its contributors may be used to endorse or promote products
Pokitto 0:e8b8f36b4505 22 derived from this software without specific prior written permission.
Pokitto 0:e8b8f36b4505 23
Pokitto 0:e8b8f36b4505 24 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
Pokitto 0:e8b8f36b4505 25 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
Pokitto 0:e8b8f36b4505 26 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Pokitto 0:e8b8f36b4505 27 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
Pokitto 0:e8b8f36b4505 28 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
Pokitto 0:e8b8f36b4505 29 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
Pokitto 0:e8b8f36b4505 30 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
Pokitto 0:e8b8f36b4505 31 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
Pokitto 0:e8b8f36b4505 32 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
Pokitto 0:e8b8f36b4505 33 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Pokitto 0:e8b8f36b4505 34 */
Pokitto 0:e8b8f36b4505 35 /**************************************************************************/
Pokitto 0:e8b8f36b4505 36
Pokitto 0:e8b8f36b4505 37 #include "PokittoItoa.h"
Pokitto 0:e8b8f36b4505 38 #include <string.h>
Pokitto 0:e8b8f36b4505 39 #include <stdint.h>
Pokitto 0:e8b8f36b4505 40
Pokitto 0:e8b8f36b4505 41
Pokitto 0:e8b8f36b4505 42 void pokItoa(uint16_t value, char *str, int base)
Pokitto 0:e8b8f36b4505 43 {
Pokitto 0:e8b8f36b4505 44 /** pokItoa: convert value n to characters
Pokitto 0:e8b8f36b4505 45 * Needed to emulate AVR LibC non-standard functions, this is a very fast version of itoa
Pokitto 0:e8b8f36b4505 46 *
Pokitto 0:e8b8f36b4505 47 * @param value unsigned integer to be converted
Pokitto 0:e8b8f36b4505 48 * @param *str pointer to string where function stores the result as characters
Pokitto 0:e8b8f36b4505 49 * @param base (not implemented in this function, base is always 10)
Pokitto 0:e8b8f36b4505 50 */
Pokitto 0:e8b8f36b4505 51
Pokitto 0:e8b8f36b4505 52 char *p = str;
Pokitto 0:e8b8f36b4505 53 uint8_t v;
Pokitto 0:e8b8f36b4505 54 if (value > 499)
Pokitto 0:e8b8f36b4505 55 {
Pokitto 0:e8b8f36b4505 56 if (value > 799)
Pokitto 0:e8b8f36b4505 57 {
Pokitto 0:e8b8f36b4505 58 if (value > 999)
Pokitto 0:e8b8f36b4505 59 {
Pokitto 0:e8b8f36b4505 60 // Treated as a special case as there
Pokitto 0:e8b8f36b4505 61 // are only 24 values above 999
Pokitto 0:e8b8f36b4505 62 *p++ = '1';
Pokitto 0:e8b8f36b4505 63 *p++ = '0';
Pokitto 0:e8b8f36b4505 64 uint8_t v = value - 1000;
Pokitto 0:e8b8f36b4505 65
Pokitto 0:e8b8f36b4505 66 if (v > 19) { *p++ = '2'; v -= 20; }
Pokitto 0:e8b8f36b4505 67 else if (v > 9) { *p++ = '1'; v -= 10; }
Pokitto 0:e8b8f36b4505 68 else { *p++ = '0'; }
Pokitto 0:e8b8f36b4505 69
Pokitto 0:e8b8f36b4505 70 *p++ = v + '0';
Pokitto 0:e8b8f36b4505 71 *p = 0;
Pokitto 0:e8b8f36b4505 72 return;
Pokitto 0:e8b8f36b4505 73 }
Pokitto 0:e8b8f36b4505 74
Pokitto 0:e8b8f36b4505 75 if (value > 899) { *p++ = '9'; v = value - 900; }
Pokitto 0:e8b8f36b4505 76 else { *p++ = '8'; v = value - 800; }
Pokitto 0:e8b8f36b4505 77 }
Pokitto 0:e8b8f36b4505 78 else
Pokitto 0:e8b8f36b4505 79 {
Pokitto 0:e8b8f36b4505 80 if (value > 699) { *p++ = '7'; v = value - 700; }
Pokitto 0:e8b8f36b4505 81 else if (value > 599) { *p++ = '6'; v = value - 600; }
Pokitto 0:e8b8f36b4505 82 else { *p++ = '5'; v = value - 500; }
Pokitto 0:e8b8f36b4505 83 }
Pokitto 0:e8b8f36b4505 84 }
Pokitto 0:e8b8f36b4505 85 else
Pokitto 0:e8b8f36b4505 86 {
Pokitto 0:e8b8f36b4505 87 if (value > 299)
Pokitto 0:e8b8f36b4505 88 {
Pokitto 0:e8b8f36b4505 89 if (value > 399) { *p++ = '4'; v = value - 400; }
Pokitto 0:e8b8f36b4505 90 else { *p++ = '3'; v = value - 300; }
Pokitto 0:e8b8f36b4505 91 }
Pokitto 0:e8b8f36b4505 92 else
Pokitto 0:e8b8f36b4505 93 {
Pokitto 0:e8b8f36b4505 94 if (value > 199) { *p++ = '2'; v = value - 200; }
Pokitto 0:e8b8f36b4505 95 else if (value > 99) { *p++ = '1'; v = value - 100; }
Pokitto 0:e8b8f36b4505 96 else { v = value; }
Pokitto 0:e8b8f36b4505 97 }
Pokitto 0:e8b8f36b4505 98 }
Pokitto 0:e8b8f36b4505 99
Pokitto 0:e8b8f36b4505 100 if (v > 49)
Pokitto 0:e8b8f36b4505 101 {
Pokitto 0:e8b8f36b4505 102 if (v > 69)
Pokitto 0:e8b8f36b4505 103 {
Pokitto 0:e8b8f36b4505 104 if (v > 89) { *p++ = '9'; v -= 90; }
Pokitto 0:e8b8f36b4505 105 else if (v > 79) { *p++ = '8'; v -= 80; }
Pokitto 0:e8b8f36b4505 106 else { *p++ = '7'; v -= 70; }
Pokitto 0:e8b8f36b4505 107 }
Pokitto 0:e8b8f36b4505 108 else
Pokitto 0:e8b8f36b4505 109 {
Pokitto 0:e8b8f36b4505 110 if (v > 59) { *p++ = '6'; v -= 60; }
Pokitto 0:e8b8f36b4505 111 else { *p++ = '5'; v -= 50; }
Pokitto 0:e8b8f36b4505 112 }
Pokitto 0:e8b8f36b4505 113 }
Pokitto 0:e8b8f36b4505 114 else
Pokitto 0:e8b8f36b4505 115 {
Pokitto 0:e8b8f36b4505 116 if (v > 19)
Pokitto 0:e8b8f36b4505 117 {
Pokitto 0:e8b8f36b4505 118 if (v > 39) { *p++ = '4'; v -= 40; }
Pokitto 0:e8b8f36b4505 119 else if (v > 29) { *p++ = '3'; v -= 30; }
Pokitto 0:e8b8f36b4505 120 else { *p++ = '2'; v -= 20; }
Pokitto 0:e8b8f36b4505 121 }
Pokitto 0:e8b8f36b4505 122 else
Pokitto 0:e8b8f36b4505 123 {
Pokitto 0:e8b8f36b4505 124 if (v > 9) { *p++ = '1'; v -= 10; }
Pokitto 0:e8b8f36b4505 125 else if (p != str) { *p++ = '0'; }
Pokitto 0:e8b8f36b4505 126 }
Pokitto 0:e8b8f36b4505 127 }
Pokitto 0:e8b8f36b4505 128
Pokitto 0:e8b8f36b4505 129 *p++ = v + '0';
Pokitto 0:e8b8f36b4505 130 *p = 0;
Pokitto 0:e8b8f36b4505 131 }
Pokitto 0:e8b8f36b4505 132
Pokitto 0:e8b8f36b4505 133 void pokUtoa(uint16_t value, char *str, int base) {
Pokitto 0:e8b8f36b4505 134 pokItoa(value,str,base);
Pokitto 0:e8b8f36b4505 135 }
Pokitto 0:e8b8f36b4505 136
Pokitto 0:e8b8f36b4505 137 void pokLtoa(long value, char *str, int base) {
Pokitto 0:e8b8f36b4505 138 pokItoa(value,str,base);
Pokitto 0:e8b8f36b4505 139 }
Pokitto 0:e8b8f36b4505 140