RGB Pixel Array with rendering features. Designed to be used with WS2812 library
Dependents: ChrisRGB-Ring ChrisRGB-Ring WS2812_Example WS2812_Example_fade ... more
PixelArray.cpp@1:41b9f8ec0b6a, 2014-08-06 (annotated)
- Committer:
- chris
- Date:
- Wed Aug 06 08:23:13 2014 +0000
- Revision:
- 1:41b9f8ec0b6a
- Parent:
- 0:bdce2379bd67
- Child:
- 2:b45a70faaa83
Added dynamic (compile time) buffer size
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
chris | 0:bdce2379bd67 | 1 | #include "PixelArray.h" |
chris | 0:bdce2379bd67 | 2 | |
chris | 0:bdce2379bd67 | 3 | PixelArray::PixelArray(int size) |
chris | 0:bdce2379bd67 | 4 | { |
chris | 1:41b9f8ec0b6a | 5 | pbufsize = size; |
chris | 1:41b9f8ec0b6a | 6 | pbuf = new int[pbufsize]; |
chris | 1:41b9f8ec0b6a | 7 | |
chris | 0:bdce2379bd67 | 8 | } |
chris | 0:bdce2379bd67 | 9 | |
chris | 0:bdce2379bd67 | 10 | PixelArray::~PixelArray() |
chris | 0:bdce2379bd67 | 11 | { |
chris | 1:41b9f8ec0b6a | 12 | delete[] pbuf; |
chris | 0:bdce2379bd67 | 13 | } |
chris | 0:bdce2379bd67 | 14 | |
chris | 0:bdce2379bd67 | 15 | void PixelArray::SetAll(unsigned int value) |
chris | 0:bdce2379bd67 | 16 | { |
chris | 0:bdce2379bd67 | 17 | // for each pixel |
chris | 1:41b9f8ec0b6a | 18 | for (int i=0 ; i < pbufsize; i++) { |
chris | 0:bdce2379bd67 | 19 | __set_pixel(i,value); |
chris | 0:bdce2379bd67 | 20 | } |
chris | 0:bdce2379bd67 | 21 | } |
chris | 0:bdce2379bd67 | 22 | |
chris | 0:bdce2379bd67 | 23 | |
chris | 0:bdce2379bd67 | 24 | void PixelArray::SetAllI(unsigned char value) |
chris | 0:bdce2379bd67 | 25 | { |
chris | 0:bdce2379bd67 | 26 | // for each pixel |
chris | 1:41b9f8ec0b6a | 27 | for (int i=0 ; i < pbufsize; i++) { |
chris | 0:bdce2379bd67 | 28 | __set_pixel_component(i,3,value); |
chris | 0:bdce2379bd67 | 29 | } |
chris | 0:bdce2379bd67 | 30 | } |
chris | 0:bdce2379bd67 | 31 | |
chris | 0:bdce2379bd67 | 32 | |
chris | 0:bdce2379bd67 | 33 | |
chris | 0:bdce2379bd67 | 34 | void PixelArray::SetAllR(unsigned char value) |
chris | 0:bdce2379bd67 | 35 | { |
chris | 0:bdce2379bd67 | 36 | // for each pixel |
chris | 1:41b9f8ec0b6a | 37 | for (int i=0 ; i < pbufsize; i++) { |
chris | 0:bdce2379bd67 | 38 | __set_pixel_component(i,2,value); |
chris | 0:bdce2379bd67 | 39 | } |
chris | 0:bdce2379bd67 | 40 | } |
chris | 0:bdce2379bd67 | 41 | |
chris | 0:bdce2379bd67 | 42 | void PixelArray::SetAllG(unsigned char value) |
chris | 0:bdce2379bd67 | 43 | { |
chris | 0:bdce2379bd67 | 44 | // for each pixel |
chris | 1:41b9f8ec0b6a | 45 | for (int i=0 ; i < pbufsize; i++) { |
chris | 0:bdce2379bd67 | 46 | __set_pixel_component(i,1,value); |
chris | 0:bdce2379bd67 | 47 | } |
chris | 0:bdce2379bd67 | 48 | } |
chris | 0:bdce2379bd67 | 49 | |
chris | 0:bdce2379bd67 | 50 | void PixelArray::SetAllB(unsigned char value) |
chris | 0:bdce2379bd67 | 51 | { |
chris | 0:bdce2379bd67 | 52 | // for each pixel |
chris | 1:41b9f8ec0b6a | 53 | for (int i=0 ; i < pbufsize; i++) { |
chris | 0:bdce2379bd67 | 54 | __set_pixel_component(i,0,value); |
chris | 0:bdce2379bd67 | 55 | } |
chris | 0:bdce2379bd67 | 56 | } |
chris | 0:bdce2379bd67 | 57 | |
chris | 0:bdce2379bd67 | 58 | |
chris | 0:bdce2379bd67 | 59 | |
chris | 0:bdce2379bd67 | 60 | |
chris | 0:bdce2379bd67 | 61 | |
chris | 0:bdce2379bd67 | 62 | void PixelArray::Set(int i, unsigned int value) |
chris | 0:bdce2379bd67 | 63 | { |
chris | 1:41b9f8ec0b6a | 64 | if ((i >= 0) && (i < pbufsize)) { |
chris | 0:bdce2379bd67 | 65 | __set_pixel(i,value); |
chris | 0:bdce2379bd67 | 66 | } |
chris | 0:bdce2379bd67 | 67 | } |
chris | 0:bdce2379bd67 | 68 | |
chris | 0:bdce2379bd67 | 69 | |
chris | 0:bdce2379bd67 | 70 | |
chris | 0:bdce2379bd67 | 71 | void PixelArray::SetI(int i, unsigned char value) |
chris | 0:bdce2379bd67 | 72 | { |
chris | 1:41b9f8ec0b6a | 73 | if ((i >= 0) && (i < pbufsize)) { |
chris | 0:bdce2379bd67 | 74 | __set_pixel_component(i,3,value); |
chris | 0:bdce2379bd67 | 75 | } |
chris | 0:bdce2379bd67 | 76 | } |
chris | 0:bdce2379bd67 | 77 | |
chris | 0:bdce2379bd67 | 78 | |
chris | 0:bdce2379bd67 | 79 | void PixelArray::SetR(int i, unsigned char value) |
chris | 0:bdce2379bd67 | 80 | { |
chris | 1:41b9f8ec0b6a | 81 | if ((i >= 0) && (i < pbufsize)) { |
chris | 0:bdce2379bd67 | 82 | __set_pixel_component(i,2,value); |
chris | 0:bdce2379bd67 | 83 | } |
chris | 0:bdce2379bd67 | 84 | } |
chris | 0:bdce2379bd67 | 85 | |
chris | 0:bdce2379bd67 | 86 | void PixelArray::SetG(int i, unsigned char value) |
chris | 0:bdce2379bd67 | 87 | { |
chris | 1:41b9f8ec0b6a | 88 | if ((i >= 0) && (i < pbufsize)) { |
chris | 0:bdce2379bd67 | 89 | __set_pixel_component(i,1,value); |
chris | 0:bdce2379bd67 | 90 | } |
chris | 0:bdce2379bd67 | 91 | } |
chris | 0:bdce2379bd67 | 92 | |
chris | 0:bdce2379bd67 | 93 | void PixelArray::SetB(int i, unsigned char value) |
chris | 0:bdce2379bd67 | 94 | { |
chris | 1:41b9f8ec0b6a | 95 | if ((i >= 0) && (i < pbufsize)) { |
chris | 0:bdce2379bd67 | 96 | __set_pixel_component(i,0,value); |
chris | 0:bdce2379bd67 | 97 | } |
chris | 0:bdce2379bd67 | 98 | } |
chris | 0:bdce2379bd67 | 99 | |
chris | 0:bdce2379bd67 | 100 | |
chris | 0:bdce2379bd67 | 101 | int* PixelArray::getBuf() |
chris | 0:bdce2379bd67 | 102 | { |
chris | 1:41b9f8ec0b6a | 103 | return (pbuf); |
chris | 0:bdce2379bd67 | 104 | } |
chris | 0:bdce2379bd67 | 105 | |
chris | 0:bdce2379bd67 | 106 | |
chris | 0:bdce2379bd67 | 107 | // set either the I,R,G,B value of specific pixel channel |
chris | 0:bdce2379bd67 | 108 | void PixelArray::__set_pixel_component(int index, int channel, int value) |
chris | 0:bdce2379bd67 | 109 | { |
chris | 0:bdce2379bd67 | 110 | |
chris | 0:bdce2379bd67 | 111 | // AND with 0x00 shifted to the right location to clear the bits |
chris | 1:41b9f8ec0b6a | 112 | pbuf[index] &= ~(0xFF << (8 * channel)); |
chris | 0:bdce2379bd67 | 113 | |
chris | 0:bdce2379bd67 | 114 | // Set the bits with an OR |
chris | 1:41b9f8ec0b6a | 115 | pbuf[index] |= (value << (8 * channel)); |
chris | 0:bdce2379bd67 | 116 | } |
chris | 0:bdce2379bd67 | 117 | |
chris | 0:bdce2379bd67 | 118 | |
chris | 0:bdce2379bd67 | 119 | // set either the I,R,G,B value of specific pixel channel |
chris | 0:bdce2379bd67 | 120 | void PixelArray::__set_pixel(int index, int value) |
chris | 0:bdce2379bd67 | 121 | { |
chris | 0:bdce2379bd67 | 122 | // AND with 0x00 shifted to the right location to clear the bits |
chris | 1:41b9f8ec0b6a | 123 | pbuf[index] = value; |
chris | 0:bdce2379bd67 | 124 | } |
chris | 0:bdce2379bd67 | 125 | |
chris | 0:bdce2379bd67 | 126 |