348ba1ecd9
This requires an interface as napple uses libevdev. Signed-off-by: Andrea Odetti <mariofutire@gmail.com>
107 lines
2.1 KiB
C++
107 lines
2.1 KiB
C++
#include "StdAfx.h"
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#include "frontends/ncurses/evdevpaddle.h"
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#include <cstring>
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#include <fcntl.h>
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#include <unistd.h>
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#include <libevdev/libevdev.h>
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#include "Log.h"
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EvDevPaddle::EvDevPaddle(const std::string & device)
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: myButtonCodes(2), myAxisCodes(2), myAxisMins(2), myAxisMaxs(2)
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{
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myFD = open(device.c_str(), O_RDONLY | O_NONBLOCK);
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if (myFD > 0)
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{
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libevdev * dev;
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int rc = libevdev_new_from_fd(myFD, &dev);
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if (rc < 0)
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{
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LogFileOutput("Input: failed to init libevdev (%s): %s\n", strerror(-rc), device.c_str());
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}
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else
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{
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myDev.reset(dev, libevdev_free);
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myName = libevdev_get_name(dev);
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myButtonCodes[0] = BTN_SOUTH;
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myButtonCodes[1] = BTN_EAST;
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myAxisCodes[0] = ABS_X;
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myAxisCodes[1] = ABS_Y;
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for (size_t i = 0; i < myAxisCodes.size(); ++i)
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{
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myAxisMins[i] = libevdev_get_abs_minimum(dev, myAxisCodes[i]);
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myAxisMaxs[i] = libevdev_get_abs_maximum(dev, myAxisCodes[i]);
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}
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}
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}
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else
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{
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LogFileOutput("Input: failed to open device (%s): %s\n", strerror(errno), device.c_str());
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}
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}
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EvDevPaddle::~EvDevPaddle()
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{
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if (myFD > 0)
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{
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close(myFD);
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}
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}
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int EvDevPaddle::poll()
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{
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int counter = 0;
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if (!myDev)
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{
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return counter;
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}
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input_event ev;
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int rc = LIBEVDEV_READ_STATUS_SUCCESS;
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do
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{
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if (rc == LIBEVDEV_READ_STATUS_SYNC)
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rc = libevdev_next_event(myDev.get(), LIBEVDEV_READ_FLAG_SYNC, &ev);
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else
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rc = libevdev_next_event(myDev.get(), LIBEVDEV_READ_FLAG_NORMAL, &ev);
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++counter;
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} while (rc >= 0);
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return counter;
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}
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const std::string & EvDevPaddle::getName() const
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{
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return myName;
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}
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bool EvDevPaddle::getButton(int i) const
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{
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int value = 0;
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if (myDev)
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{
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int rc = libevdev_fetch_event_value(myDev.get(), EV_KEY, myButtonCodes[i], &value);
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}
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return value != 0;
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}
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int EvDevPaddle::getAxis(int i) const
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{
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if (myDev)
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{
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int value = 0;
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int rc = libevdev_fetch_event_value(myDev.get(), EV_ABS, myAxisCodes[i], &value);
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int pdl = 255 * (value - myAxisMins[i]) / (myAxisMaxs[i] - myAxisMins[i]);
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return pdl;
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}
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else
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{
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return 0;
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}
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}
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