hyperion.ng/libsrc/hyperion/device/LedDeviceMultiLightpack.cpp
johan 631b90486f Multi lightpacks device added
Former-commit-id: bd78457104c2b5b219b5a7718cc79777db9234e8
2013-11-17 15:52:11 +01:00

120 lines
2.6 KiB
C++

// stl includes
#include <exception>
#include <cstring>
#include <algorithm>
// Local Hyperion includes
#include "LedDeviceMultiLightpack.h"
bool compareLightpacks(LedDeviceLightpack * lhs, LedDeviceLightpack * rhs)
{
return lhs->getSerialNumber() < rhs->getSerialNumber();
}
LedDeviceMultiLightpack::LedDeviceMultiLightpack() :
LedDevice(),
_lightpacks()
{
}
LedDeviceMultiLightpack::~LedDeviceMultiLightpack()
{
for (LedDeviceLightpack * device : _lightpacks)
{
delete device;
}
}
int LedDeviceMultiLightpack::open()
{
int error;
// initialize the usb context
libusb_context * libusbContext;
if ((error = libusb_init(&libusbContext)) != LIBUSB_SUCCESS)
{
std::cerr << "Error while initializing USB context(" << error << "): " << libusb_error_name(error) << std::endl;
libusbContext = nullptr;
return -1;
}
//libusb_set_debug(_libusbContext, 3);
std::cout << "USB context initialized in multi Lightpack device" << std::endl;
// retrieve the list of usb devices
libusb_device ** deviceList;
ssize_t deviceCount = libusb_get_device_list(libusbContext, &deviceList);
// iterate the list of devices
for (ssize_t i = 0 ; i < deviceCount; ++i)
{
// try to open the device as a Lightpack
LedDeviceLightpack * device = new LedDeviceLightpack();
error = device->open(deviceList[i]);
if (error == 0)
{
// Device is successfully opened as Lightpack
std::cout << "Lightpack with serial " << device->getSerialNumber() << " added to set of Lightpacks" << std::endl;
_lightpacks.push_back(device);
}
else
{
// No Lightpack...
delete device;
}
}
// sort the list of Lightpacks based on the serial to get a fixed order
std::sort(_lightpacks.begin(), _lightpacks.end(), compareLightpacks);
// free the device list
libusb_free_device_list(deviceList, 1);
libusb_exit(libusbContext);
if (_lightpacks.size() == 0)
{
std::cerr << "No Lightpack devices were found" << std::endl;
}
else
{
std::cout << _lightpacks.size() << " Lightpack devices were found" << std::endl;
}
return _lightpacks.size() > 0 ? 0 : -1;
}
int LedDeviceMultiLightpack::write(const std::vector<ColorRgb> &ledValues)
{
const ColorRgb * data = ledValues.data();
int size = ledValues.size();
for (LedDeviceLightpack * device : _lightpacks)
{
int count = std::min(device->getLedCount(), size);
if (count > 0)
{
device->write(data, count);
data += count;
size -= count;
}
else
{
std::cout << "Unable to write data to Lightpack device: no more led data available" << std::endl;
}
}
return 0;
}
int LedDeviceMultiLightpack::switchOff()
{
for (LedDeviceLightpack * device : _lightpacks)
{
device->switchOff();
}
return 0;
}