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/* Copyright (c) 2014-2015, Stanislaw Halik <sthalik@misaki.pl>
* Permission to use, copy, modify, and/or distribute this
* software for any purpose with or without fee is hereby granted,
* provided that the above copyright notice and this permission
* notice appear in all copies.
*/
#ifdef _WIN32
#include "keybinding-worker.hpp"
#include "compat/macros.hpp"
#include <QDebug>
#include <QMutexLocker>
#include <windows.h>
Key::Key() = default;
bool Key::should_process()
{
if (!enabled || (keycode == 0 && guid == ""))
return false;
bool ret = prog1(!held || timer.elapsed_ms() > 100,
timer.start());
return ret;
}
KeybindingWorker::~KeybindingWorker()
{
qDebug() << "exit: keybinding worker";
requestInterruption();
wait();
if (dinkeyboard) {
dinkeyboard->Unacquire();
dinkeyboard->Release();
}
}
bool KeybindingWorker::init()
{
if (!din)
{
qDebug() << "can't create dinput handle";
return false;
}
if (din->CreateDevice(GUID_SysKeyboard, &dinkeyboard, nullptr) != DI_OK) {
qDebug() << "setup CreateDevice function failed!" << GetLastError();
return false;
}
if (dinkeyboard->SetDataFormat(&c_dfDIKeyboard) != DI_OK) {
qDebug() << "setup SetDataFormat function failed!" << GetLastError();
dinkeyboard->Release();
dinkeyboard = nullptr;
return false;
}
if (dinkeyboard->SetCooperativeLevel((HWND) fake_main_window.winId(), DISCL_NONEXCLUSIVE | DISCL_BACKGROUND) != DI_OK) {
dinkeyboard->Release();
dinkeyboard = nullptr;
qDebug() << "setup SetCooperativeLevel function failed!" << GetLastError();
return false;
}
{
DIPROPDWORD dipdw;
dipdw.dwData = 128;
dipdw.diph.dwHeaderSize = sizeof(dipdw.diph);
dipdw.diph.dwHow = DIPH_DEVICE;
dipdw.diph.dwObj = 0;
dipdw.diph.dwSize = sizeof(dipdw);
if ( dinkeyboard->SetProperty(DIPROP_BUFFERSIZE, &dipdw.diph) != DI_OK)
{
qDebug() << "setup keyboard buffer mode failed!";
dinkeyboard->Release();
dinkeyboard = nullptr;
return false;
}
}
if (dinkeyboard->Acquire() != DI_OK)
{
dinkeyboard->Release();
dinkeyboard = nullptr;
qDebug() << "setup dinkeyboard Acquire failed!" << GetLastError();
return false;
}
return true;
}
KeybindingWorker::KeybindingWorker()
{
if (init())
start(QThread::HighPriority);
}
KeybindingWorker& KeybindingWorker::make()
{
static KeybindingWorker k;
return k;
}
void KeybindingWorker::run()
{
while (!isInterruptionRequested())
{
{
QMutexLocker l(&mtx);
if (!receivers.empty())
{
bool ok = true;
ok &= run_keyboard_nolock();
ok &= run_joystick_nolock();
if (!ok)
Sleep(500);
}
}
Sleep(25);
}
}
bool KeybindingWorker::run_keyboard_nolock()
{
/* There are some problems reported on various forums
* with regard to key-up events. But that's what I dug up:
*
* https://www.gamedev.net/forums/topic/633011-keyboard-getdevicedata-buffered-never-releases-keys/
*
* "Over in the xna forums (http://xboxforums.create.msdn.com/forums/p/108722/642144.aspx#642144)
* we discovered this behavior is caused by calling Unacquire in your event processing loop.
* Funnily enough only the keyboard seems to be affected."
*
* Key-up events work on my end.
*/
DWORD sz = num_keyboard_states;
const HRESULT hr = dinkeyboard->GetDeviceData(sizeof(*keyboard_states), keyboard_states, &sz, 0);
if (hr != DI_OK)
{
eval_once(qDebug() << "dinput: keyboard GetDeviceData failed" << hr);
return false;
}
for (unsigned k = 0; k < sz; k++)
{
const unsigned idx = keyboard_states[k].dwOfs & 0xff; // defensive programming
const bool held = !!(keyboard_states[k].dwData & 0x80);
switch (idx)
{
case DIK_LCONTROL:
case DIK_LSHIFT:
case DIK_LALT:
case DIK_RCONTROL:
case DIK_RSHIFT:
case DIK_RALT:
case DIK_LWIN:
case DIK_RWIN:
break;
default:
{
Key k;
k.shift = keystate[DIK_LSHIFT] | keystate[DIK_RSHIFT];
k.alt = keystate[DIK_LALT] | keystate[DIK_RALT];
k.ctrl = keystate[DIK_LCONTROL] | keystate[DIK_RCONTROL];
k.keycode = idx;
k.held = held;
for (auto& r : receivers)
(*r)(k);
}
break;
}
keystate[idx] = held;
}
return true;
}
bool KeybindingWorker::run_joystick_nolock()
{
using joy_fn = std::function<void(const QString& guid, int idx, bool held)>;
joy_fn f = [&](const QString& guid, int idx, bool held) {
Key k;
k.keycode = idx;
k.shift = keystate[DIK_LSHIFT] | keystate[DIK_RSHIFT];
k.alt = keystate[DIK_LALT] | keystate[DIK_RALT];
k.ctrl = keystate[DIK_LCONTROL] | keystate[DIK_RCONTROL];
k.guid = guid;
k.held = held;
for (auto& r : receivers)
(*r)(k);
};
joy_ctx.poll(f);
return true;
}
KeybindingWorker::fun* KeybindingWorker::_add_receiver(fun& receiver)
{
QMutexLocker l(&mtx);
receivers.push_back(std::make_unique<fun>(receiver));
fun* f = receivers[receivers.size() - 1].get();
//qDebug() << "add receiver" << (long) f;
joy_ctx.refresh();
return f;
}
void KeybindingWorker::remove_receiver(KeybindingWorker::fun* pos)
{
QMutexLocker l(&mtx);
bool ok = false;
using s = int;
for (int i = s(receivers.size()) - 1; i >= 0; i--)
{
using u = unsigned;
if (receivers[u(i)].get() == pos)
{
ok = true;
//qDebug() << "remove receiver" << (long) pos;
receivers.erase(receivers.begin() + i);
break;
}
}
if (!ok)
{
qDebug() << "bad remove receiver" << (long) pos;
}
}
#endif
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