eLab Team / Mbed 2 deprecated SimonSays

First Simon Says version

Dependencies:   mbed DebounceIn WS2812

LED_WS2812/Pixel/PixelArray.cpp@0:47b1ab4dd893, 2020-02-13 (annotated)

Committer:
elab
Date:
Thu Feb 13 09:07:14 2020 +0000
Revision:
0:47b1ab4dd893
first version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elab 0:47b1ab4dd893 1 #include "PixelArray.h"
elab 0:47b1ab4dd893 2
elab 0:47b1ab4dd893 3 PixelArray::PixelArray(int size)
elab 0:47b1ab4dd893 4 {
elab 0:47b1ab4dd893 5 pbufsize = size;
elab 0:47b1ab4dd893 6 pbuf = new int[pbufsize];
elab 0:47b1ab4dd893 7 SetAll(0x0); // initialise memory to zeros
elab 0:47b1ab4dd893 8
elab 0:47b1ab4dd893 9 }
elab 0:47b1ab4dd893 10
elab 0:47b1ab4dd893 11 PixelArray::~PixelArray()
elab 0:47b1ab4dd893 12 {
elab 0:47b1ab4dd893 13 delete[] pbuf;
elab 0:47b1ab4dd893 14 }
elab 0:47b1ab4dd893 15
elab 0:47b1ab4dd893 16 void PixelArray::SetAll(unsigned int value)
elab 0:47b1ab4dd893 17 {
elab 0:47b1ab4dd893 18 // for each pixel
elab 0:47b1ab4dd893 19 for (int i=0 ; i < pbufsize; i++) {
elab 0:47b1ab4dd893 20 __set_pixel(i,value);
elab 0:47b1ab4dd893 21 }
elab 0:47b1ab4dd893 22 }
elab 0:47b1ab4dd893 23
elab 0:47b1ab4dd893 24
elab 0:47b1ab4dd893 25 void PixelArray::SetAllI(unsigned char value)
elab 0:47b1ab4dd893 26 {
elab 0:47b1ab4dd893 27 // for each pixel
elab 0:47b1ab4dd893 28 for (int i=0 ; i < pbufsize; i++) {
elab 0:47b1ab4dd893 29 __set_pixel_component(i,3,value);
elab 0:47b1ab4dd893 30 }
elab 0:47b1ab4dd893 31 }
elab 0:47b1ab4dd893 32
elab 0:47b1ab4dd893 33
elab 0:47b1ab4dd893 34
elab 0:47b1ab4dd893 35 void PixelArray::SetAllR(unsigned char value)
elab 0:47b1ab4dd893 36 {
elab 0:47b1ab4dd893 37 // for each pixel
elab 0:47b1ab4dd893 38 for (int i=0 ; i < pbufsize; i++) {
elab 0:47b1ab4dd893 39 __set_pixel_component(i,2,value);
elab 0:47b1ab4dd893 40 }
elab 0:47b1ab4dd893 41 }
elab 0:47b1ab4dd893 42
elab 0:47b1ab4dd893 43 void PixelArray::SetAllG(unsigned char value)
elab 0:47b1ab4dd893 44 {
elab 0:47b1ab4dd893 45 // for each pixel
elab 0:47b1ab4dd893 46 for (int i=0 ; i < pbufsize; i++) {
elab 0:47b1ab4dd893 47 __set_pixel_component(i,1,value);
elab 0:47b1ab4dd893 48 }
elab 0:47b1ab4dd893 49 }
elab 0:47b1ab4dd893 50
elab 0:47b1ab4dd893 51 void PixelArray::SetAllB(unsigned char value)
elab 0:47b1ab4dd893 52 {
elab 0:47b1ab4dd893 53 // for each pixel
elab 0:47b1ab4dd893 54 for (int i=0 ; i < pbufsize; i++) {
elab 0:47b1ab4dd893 55 __set_pixel_component(i,0,value);
elab 0:47b1ab4dd893 56 }
elab 0:47b1ab4dd893 57 }
elab 0:47b1ab4dd893 58
elab 0:47b1ab4dd893 59
elab 0:47b1ab4dd893 60
elab 0:47b1ab4dd893 61
elab 0:47b1ab4dd893 62
elab 0:47b1ab4dd893 63 void PixelArray::Set(int i, unsigned int value)
elab 0:47b1ab4dd893 64 {
elab 0:47b1ab4dd893 65 if ((i >= 0) && (i < pbufsize)) {
elab 0:47b1ab4dd893 66 __set_pixel(i,value);
elab 0:47b1ab4dd893 67 }
elab 0:47b1ab4dd893 68 }
elab 0:47b1ab4dd893 69
elab 0:47b1ab4dd893 70
elab 0:47b1ab4dd893 71
elab 0:47b1ab4dd893 72 void PixelArray::SetI(int i, unsigned char value)
elab 0:47b1ab4dd893 73 {
elab 0:47b1ab4dd893 74 if ((i >= 0) && (i < pbufsize)) {
elab 0:47b1ab4dd893 75 __set_pixel_component(i,3,value);
elab 0:47b1ab4dd893 76 }
elab 0:47b1ab4dd893 77 }
elab 0:47b1ab4dd893 78
elab 0:47b1ab4dd893 79
elab 0:47b1ab4dd893 80 void PixelArray::SetR(int i, unsigned char value)
elab 0:47b1ab4dd893 81 {
elab 0:47b1ab4dd893 82 if ((i >= 0) && (i < pbufsize)) {
elab 0:47b1ab4dd893 83 __set_pixel_component(i,2,value);
elab 0:47b1ab4dd893 84 }
elab 0:47b1ab4dd893 85 }
elab 0:47b1ab4dd893 86
elab 0:47b1ab4dd893 87 void PixelArray::SetG(int i, unsigned char value)
elab 0:47b1ab4dd893 88 {
elab 0:47b1ab4dd893 89 if ((i >= 0) && (i < pbufsize)) {
elab 0:47b1ab4dd893 90 __set_pixel_component(i,1,value);
elab 0:47b1ab4dd893 91 }
elab 0:47b1ab4dd893 92 }
elab 0:47b1ab4dd893 93
elab 0:47b1ab4dd893 94 void PixelArray::SetB(int i, unsigned char value)
elab 0:47b1ab4dd893 95 {
elab 0:47b1ab4dd893 96 if ((i >= 0) && (i < pbufsize)) {
elab 0:47b1ab4dd893 97 __set_pixel_component(i,0,value);
elab 0:47b1ab4dd893 98 }
elab 0:47b1ab4dd893 99 }
elab 0:47b1ab4dd893 100
elab 0:47b1ab4dd893 101
elab 0:47b1ab4dd893 102 unsigned int PixelArray::Get(int i)
elab 0:47b1ab4dd893 103 {
elab 0:47b1ab4dd893 104 return __get_pixel(i);
elab 0:47b1ab4dd893 105 }
elab 0:47b1ab4dd893 106
elab 0:47b1ab4dd893 107 unsigned int PixelArray::GetI(int i)
elab 0:47b1ab4dd893 108 {
elab 0:47b1ab4dd893 109 return __get_pixel_component(i,3);
elab 0:47b1ab4dd893 110 }
elab 0:47b1ab4dd893 111
elab 0:47b1ab4dd893 112 unsigned int PixelArray::GetR(int i)
elab 0:47b1ab4dd893 113 {
elab 0:47b1ab4dd893 114 return __get_pixel_component(i,2);
elab 0:47b1ab4dd893 115 }
elab 0:47b1ab4dd893 116
elab 0:47b1ab4dd893 117 unsigned int PixelArray::GetG(int i)
elab 0:47b1ab4dd893 118 {
elab 0:47b1ab4dd893 119 return __get_pixel_component(i,1);
elab 0:47b1ab4dd893 120 }
elab 0:47b1ab4dd893 121
elab 0:47b1ab4dd893 122 unsigned int PixelArray::GetB(int i)
elab 0:47b1ab4dd893 123 {
elab 0:47b1ab4dd893 124 return __get_pixel_component(i,0);
elab 0:47b1ab4dd893 125 }
elab 0:47b1ab4dd893 126
elab 0:47b1ab4dd893 127
elab 0:47b1ab4dd893 128
elab 0:47b1ab4dd893 129 int* PixelArray::getBuf()
elab 0:47b1ab4dd893 130 {
elab 0:47b1ab4dd893 131 return (pbuf);
elab 0:47b1ab4dd893 132 }
elab 0:47b1ab4dd893 133
elab 0:47b1ab4dd893 134
elab 0:47b1ab4dd893 135 // set either the I,R,G,B value of specific pixel channel
elab 0:47b1ab4dd893 136 void PixelArray::__set_pixel_component(int index, int channel, int value)
elab 0:47b1ab4dd893 137 {
elab 0:47b1ab4dd893 138
elab 0:47b1ab4dd893 139 // AND with 0x00 shifted to the right location to clear the bits
elab 0:47b1ab4dd893 140 pbuf[index] &= ~(0xFF << (8 * channel));
elab 0:47b1ab4dd893 141
elab 0:47b1ab4dd893 142 // Set the bits with an OR
elab 0:47b1ab4dd893 143 pbuf[index] |= (value << (8 * channel));
elab 0:47b1ab4dd893 144 }
elab 0:47b1ab4dd893 145
elab 0:47b1ab4dd893 146
elab 0:47b1ab4dd893 147 // set either the I,R,G,B value of specific pixel channel
elab 0:47b1ab4dd893 148 void PixelArray::__set_pixel(int index, int value)
elab 0:47b1ab4dd893 149 {
elab 0:47b1ab4dd893 150 // AND with 0x00 shifted to the right location to clear the bits
elab 0:47b1ab4dd893 151 pbuf[index] = value;
elab 0:47b1ab4dd893 152 }
elab 0:47b1ab4dd893 153
elab 0:47b1ab4dd893 154
elab 0:47b1ab4dd893 155 // get specific pixel
elab 0:47b1ab4dd893 156 int PixelArray::__get_pixel(int index)
elab 0:47b1ab4dd893 157 {
elab 0:47b1ab4dd893 158 if ((index >= 0) && (index < pbufsize)) {
elab 0:47b1ab4dd893 159 return pbuf[index];
elab 0:47b1ab4dd893 160 } else {
elab 0:47b1ab4dd893 161 return 0;
elab 0:47b1ab4dd893 162 }
elab 0:47b1ab4dd893 163 }
elab 0:47b1ab4dd893 164
elab 0:47b1ab4dd893 165
elab 0:47b1ab4dd893 166 // get specific pixel
elab 0:47b1ab4dd893 167 int PixelArray::__get_pixel_component(int index, int channel)
elab 0:47b1ab4dd893 168 {
elab 0:47b1ab4dd893 169 // AND with 0xFF shifted to the right location to get the bits
elab 0:47b1ab4dd893 170 return ( (__get_pixel(index) & (0xFF << (8 * channel))) >> (8*channel) );
elab 0:47b1ab4dd893 171 }
elab 0:47b1ab4dd893 172
elab 0:47b1ab4dd893 173