hyperion.ng/libsrc/utils/RgbToRgbw.cpp
penfold42 d5ce395e8e Add sk6812rgbw support (#666)
* Removed -HUP so the default -TERM signal is sent instead.
- hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config

Changed pgrep to add '-x' so it wont partial match on the exe name.
- I have multiple instances with multiple hyperiond-instance1 names
- this ensures the service script only kills the right process

* reversing errant change to hyperion.systemd.sh

* adding support for SK6812 - not working yet

* Changed rpi_ws281x submodule to be penfold42's fork

* Set White to zero for now

* starting on the code to make the White led do stuff

* Added some basic whie led calculation
white = min(r,g,b)
r-=w, g-=w, b-=w

* cleaned up a couple of compiler warnings

* updated strip type to use corrected RGBW strip type
(the SK6812RGBW datasheet is wrong)

* moved bitpair_to_byte initialiser to (hopefully) work with older GCC

* compiler warning in udp driver
removed some tabs in ws2812b.cpp

* formatting - spaces to tabs

* moved rpi_281x to tag sk6812-v1.0

* attempt #3 at migrating the rpi_281x submodule to my fork/branch

* moving to my fork of rpi_281x

* Started implementing multiple RGB to RGBW conversion options

a quick hack has been implemented inside WS281x.cpp but ive started
moving this to RgbToRgbw.cpp for reuse by other led device types

* migrated RGB to RGBW conversion to RgbToRgbw.cpp


Former-commit-id: ff8e9038c4bb8203b71b42d12bf23be4abcc0b3b
2016-05-31 22:55:56 +02:00

25 lines
771 B
C++

#include <utils/ColorRgb.h>
#include <utils/ColorRgbw.h>
void Rgb_to_Rgbw(ColorRgb input, ColorRgbw * output, std::string _whiteAlgorithm) {
if (_whiteAlgorithm == "subtract_minimum") {
output->white = std::min(input.red, input.green);
output->white = std::min(output->white, input.blue);
output->red = input.red - output->white;
output->green = input.green - output->white;
output->blue = input.blue - output->white;
}
else if (_whiteAlgorithm == "sub_min_warm_adjust") {
}
else if ( (_whiteAlgorithm == "") || (_whiteAlgorithm == "white_off") ) {
output->red = input.red;
output->green = input.green;
output->blue = input.blue;
output->white = 0;
}
else {
std::cout << "ERROR: unknown whiteAlgorithm " << _whiteAlgorithm << std::endl;
}
}