This is a very simple guide, reviewing the steps required to get Blinky working on an Mbed OS platform.
Dependencies: mbed Adafruit_GFX
PixelArray.cpp
- Committer:
- ParkChunMyong
- Date:
- 2019-06-13
- Revision:
- 96:7465ab270e7a
- Parent:
- 95:250afd53b710
File content as of revision 96:7465ab270e7a:
#include "PixelArray.h" PixelArray::PixelArray(int size) { pbufsize = size; pbuf = new int[pbufsize]; SetAll(0x0); // initialise memory to zeros } PixelArray::~PixelArray() { delete[] pbuf; } void PixelArray::SetAll(unsigned int value) { // for each pixel for (int i=0 ; i < pbufsize; i++) { __set_pixel(i,value); } } void PixelArray::SetAllI(unsigned char value) { // for each pixel for (int i=0 ; i < pbufsize; i++) { __set_pixel_component(i,3,value); } } void PixelArray::SetAllR(unsigned char value) { // for each pixel for (int i=0 ; i < pbufsize; i++) { __set_pixel_component(i,2,value); } } void PixelArray::SetAllG(unsigned char value) { // for each pixel for (int i=0 ; i < pbufsize; i++) { __set_pixel_component(i,1,value); } } void PixelArray::SetAllB(unsigned char value) { // for each pixel for (int i=0 ; i < pbufsize; i++) { __set_pixel_component(i,0,value); } } void PixelArray::Set(int i, unsigned int value) { if ((i >= 0) && (i < pbufsize)) { __set_pixel(i,value); } } void PixelArray::SetI(int i, unsigned char value) { if ((i >= 0) && (i < pbufsize)) { __set_pixel_component(i,3,value); } } void PixelArray::SetR(int i, unsigned char value) { if ((i >= 0) && (i < pbufsize)) { __set_pixel_component(i,2,value); } } void PixelArray::SetG(int i, unsigned char value) { if ((i >= 0) && (i < pbufsize)) { __set_pixel_component(i,1,value); } } void PixelArray::SetB(int i, unsigned char value) { if ((i >= 0) && (i < pbufsize)) { __set_pixel_component(i,0,value); } } int* PixelArray::getBuf() { return (pbuf); } // set either the I,R,G,B value of specific pixel channel void PixelArray::__set_pixel_component(int index, int channel, int value) { // AND with 0x00 shifted to the right location to clear the bits pbuf[index] &= ~(0xFF << (8 * channel)); // Set the bits with an OR pbuf[index] |= (value << (8 * channel)); } // set either the I,R,G,B value of specific pixel channel void PixelArray::__set_pixel(int index, int value) { // AND with 0x00 shifted to the right location to clear the bits pbuf[index] = value; }