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RGBMatrix.cpp
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RGBMatrix.cpp
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/** \file
* Driver for the Blinky Badge RGB matrix.
*
*/
#include <Arduino.h>
#include "RGBMatrix.h"
#ifdef CONFIG_FEATHER
#include <Adafruit_NeoPixel.h>
Adafruit_NeoPixel neopixels = Adafruit_NeoPixel(LED_ROWS * LED_COLS, 15, NEO_GRB);
#endif
RGBMatrix::RGBMatrix()
{
this->clear();
}
void RGBMatrix::clear()
{
for(int i = 0 ; i < LED_ROWS ; i++)
for(int j = 0 ; j < LED_COLS ; j++)
set(i, j, 0, 0, 0);
}
void RGBMatrix::begin()
{
#ifndef CONFIG_FEATHER
// Serial communication to RGB matrix
Serial1.begin( 230400 );
this->clear();
this->show();
this->show();
#else
// feather uses NeoPixel hat
neopixels.begin();
neopixels.setBrightness(32);
#endif
}
void RGBMatrix::setBrightness(uint8_t brightness)
{
#ifndef CONFIG_FEATHER
// Escape to command mode
for(int i = 0; i < 9; i++) {
Serial1.print(char(255));
}
Serial1.print(char(1)); // Set brightness command
Serial1.print(char(brightness)); // And the brightness data
#else
// feather uses NeoPixel hat
neopixels.setBrightness(brightness);
#endif
}
void RGBMatrix::set(
int row,
int col,
int r,
int g,
int b
)
{
if (row < 0 || row >= LED_ROWS)
return;
if (col < 0 || col >= LED_COLS)
return;
if(r == 255)
r = 254;
if(g == 255)
g = 254;
if(b == 255)
b = 254;
uint8_t * const p = &data[3*(row*LED_COLS + col)];
p[0] = r;
p[1] = g;
p[2] = b;
}
void RGBMatrix::blend(
int row,
int col,
int blend,
int r,
int g,
int b
)
{
if (row < 0 || row >= LED_ROWS)
return;
if (col < 0 || col >= LED_COLS)
return;
if (blend < 0) blend = 0;
if (blend > 255) blend = 255;
if(r >= 255) r = 254;
if(g >= 255) g = 254;
if(b >= 255) b = 254;
if(r < 0) r = 0;
if(g < 0) g = 0;
if(b < 0) b = 0;
uint8_t * const p = &data[3*(row*LED_COLS + col)];
r = (p[0] * (255 - blend) + r * blend) / 256;
g = (p[1] * (255 - blend) + g * blend) / 256;
b = (p[2] * (255 - blend) + b * blend) / 256;
if(r >= 255) r = 254;
if(g >= 255) g = 254;
if(b >= 255) b = 254;
if(r < 0) r = 0;
if(g < 0) g = 0;
if(b < 0) b = 0;
p[0] = r;
p[1] = g;
p[2] = b;
}
void RGBMatrix::blend(
int row,
int col,
int blend,
uint32_t rgb
)
{
this->blend(
row,
col,
blend,
(rgb >> 16) & 0xFF,
(rgb >> 8) & 0xFF,
(rgb >> 0) & 0xFF
);
}
void RGBMatrix::set(
int row,
int col,
uint32_t rgb
)
{
this->set(
row,
col,
(rgb >> 16) & 0xFF,
(rgb >> 8) & 0xFF,
(rgb >> 0) & 0xFF
);
}
void RGBMatrix::show()
{
#ifndef CONFIG_FEATHER
// for the Blinkin Labs hardware
for(int i = 0; i < LED_ROWS*LED_COLS*LED_BYTES_PER_PIXEL; i++)
{
int c = data[i];
// scale to 0-170 to fix a PWM bug on rev B hardware
//c = (170 * c) / 256;
Serial1.print(char(c));
}
Serial1.print(char(255));
// delay(1);
#else
// for the adafruit feather
unsigned offset = 0;
for(int row = 0 ; row < LED_ROWS ; row++)
{
for(int col = 0 ; col < LED_COLS ; col++, offset += 3)
{
neopixels.setPixelColor(
row + col * LED_ROWS,
data[offset + 0],
data[offset + 1],
data[offset + 2]
);
}
}
neopixels.show();
#endif
}
void RGBMatrix::show8()
{
#ifndef CONFIG_FEATHER
// for the Blinkin Labs hardware
Serial1.write(&data[0], LED_ROWS * LED_BYTES_PER_PIXEL);
Serial1.print(char(255));
#else
// for the adafruit feather
unsigned offset = 0;
for(int row = 0 ; row < LED_ROWS ; row++)
{
for(int col = 0 ; col < LED_COLS ; col++, offset += 3)
{
neopixels.setPixelColor(
row + col * LED_ROWS,
data[offset + 0],
data[offset + 1],
data[offset + 2]
);
}
}
neopixels.show();
#endif
}