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Merge pull request #2124 from Cacodemon345/newqt

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qt: X11 Xinput2 mouse motion backend
This commit is contained in:
Miran Grča 2022-02-14 21:41:34 +01:00 committed by GitHub
commit bcf781a7f4
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GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 201 additions and 10 deletions
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3
src/qt/CMakeLists.txt
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@ -254,7 +254,8 @@ endif()
if (UNIX AND NOT APPLE)
find_package(X11 REQUIRED)
target_link_libraries(ui PRIVATE X11::X11)
target_link_libraries(ui PRIVATE X11::X11 X11::Xi)
target_sources(ui PRIVATE xinput2_mouse.cpp)
find_package(PkgConfig REQUIRED)
pkg_check_modules(LIBEVDEV IMPORTED_TARGET libevdev)
if (LIBEVDEV_FOUND)

1
src/qt/qt_main.cpp
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@ -66,6 +66,7 @@ extern "C"
#include "cocoa_mouse.hpp"
#include "qt_styleoverride.hpp"
// Void Cast
#define VC(x) const_cast<wchar_t*>(x)

2
src/qt/qt_mainwindow.cpp
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@ -168,7 +168,6 @@ MainWindow::MainWindow(QWidget *parent) :
mouse_capture = state ? 1 : 0;
qt_mouse_capture(mouse_capture);
if (mouse_capture) {
ui->stackedWidget->grabMouse();
this->grabKeyboard();
#ifdef WAYLAND
if (QGuiApplication::platformName().contains("wayland")) {
@ -176,7 +175,6 @@ MainWindow::MainWindow(QWidget *parent) :
}
#endif
} else {
ui->stackedWidget->releaseMouse();
this->releaseKeyboard();
#ifdef WAYLAND
if (QGuiApplication::platformName().contains("wayland")) {

1
src/qt/qt_mainwindow.hpp
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@ -131,6 +131,7 @@ private:
friend class SpecifyDimensions;
friend class ProgSettings;
friend class RendererCommon;
};
#endif // QT_MAINWINDOW_HPP

30
src/qt/qt_rendererstack.cpp
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@ -49,15 +49,21 @@ RendererStack::RendererStack(QWidget *parent) :
{
ui->setupUi(this);
#ifdef __unix__
#ifdef WAYLAND
if (QApplication::platformName().contains("wayland")) {
wl_init();
}
#endif
#ifdef EVDEV_INPUT
if (QApplication::platformName() == "xcb" || QApplication::platformName() == "eglfs") {
if (QApplication::platformName() == "eglfs") {
evdev_init();
}
#endif
if (QApplication::platformName() == "xcb") {
extern void xinput2_init();
xinput2_init();
}
#endif
}
@ -91,20 +97,31 @@ void RendererStack::mousePoll()
{
#ifdef __APPLE__
return macos_poll_mouse();
#else
#else /* !defined __APPLE__ */
mouse_x = mousedata.deltax;
mouse_y = mousedata.deltay;
mouse_z = mousedata.deltaz;
mousedata.deltax = mousedata.deltay = mousedata.deltaz = 0;
mouse_buttons = mousedata.mousebuttons;
#ifdef __unix__
#ifdef WAYLAND
if (QApplication::platformName().contains("wayland"))
wl_mouse_poll();
#endif
#ifdef EVDEV_INPUT
evdev_mouse_poll();
#endif
if (QApplication::platformName() == "eglfs") evdev_mouse_poll();
else
#endif
if (QApplication::platformName() == "xcb")
{
extern void xinput2_poll();
xinput2_poll();
}
#endif /* defined __unix__ */
#endif /* !defined __APPLE__ */
}
int ignoreNextMouseEvent = 1;
@ -169,8 +186,8 @@ void RendererStack::mouseMoveEvent(QMouseEvent *event)
leaveEvent((QEvent*)event);
ignoreNextMouseEvent--;
}
else if (event->globalPos().x() == 0 || event->globalPos().y() == 0) leaveEvent((QEvent*)event);
else if (event->globalPos().x() == (util::screenOfWidget(this)->geometry().width() - 1) || event->globalPos().y() == (util::screenOfWidget(this)->geometry().height() - 1)) leaveEvent((QEvent*)event);
QCursor::setPos(mapToGlobal(QPoint(width() / 2, height() / 2)));
ignoreNextMouseEvent = 2;
oldPos = event->pos();
#endif
}
@ -183,7 +200,6 @@ void RendererStack::leaveEvent(QEvent* event)
return;
}
if (!mouse_capture) return;
QCursor::setPos(mapToGlobal(QPoint(width() / 2, height() / 2)));
ignoreNextMouseEvent = 2;
event->accept();
}

174
src/qt/xinput2_mouse.cpp Normal file
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@ -0,0 +1,174 @@
/*
* 86Box A hypervisor and IBM PC system emulator that specializes in
* running old operating systems and software designed for IBM
* PC systems and compatibles from 1981 through fairly recent
* system designs based on the PCI bus.
*
* This file is part of the 86Box distribution.
*
* X11 Xinput2 mouse input module.
*
*
*
* Authors: Cacodemon345
*
* Copyright 2022 Cacodemon345
*/
/* Valuator parsing and duplicate event checking code from SDL2. */
#include <QDebug>
#include <QThread>
#include <QProcess>
#include <QApplication>
#include <QAbstractNativeEventFilter>
#include "qt_mainwindow.hpp"
extern MainWindow* main_window;
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <atomic>
extern "C"
{
#include <X11/Xlib.h>
#include <X11/extensions/XInput2.h>
#include <unistd.h>
#include <fcntl.h>
#include <86box/86box.h>
#include <86box/mouse.h>
#include <86box/plat.h>
}
int xi2flides[2] = { 0, 0 };
static Display* disp = nullptr;
static QThread* procThread = nullptr;
static bool xi2childinit = false;
static XIEventMask ximask;
static std::atomic<bool> exitfromthread = false;
static std::atomic<double> xi2_mouse_x = 0, xi2_mouse_y = 0;
static int xi2opcode = 0;
static double prev_rel_coords[2] = { 0., 0. };
static Time prev_time = 0;
// From SDL2.
static void parse_valuators(const double *input_values, const unsigned char *mask,int mask_len,
double *output_values,int output_values_len) {
int i = 0,z = 0;
int top = mask_len * 8;
if (top > 16)
top = 16;
memset(output_values,0,output_values_len * sizeof(double));
for (; i < top && z < output_values_len; i++) {
if (XIMaskIsSet(mask, i)) {
const int value = (int) *input_values;
output_values[z] = value;
input_values++;
}
z++;
}
}
static bool exitthread = false;
void xinput2_proc()
{
Window win;
win = DefaultRootWindow(disp);
// XIAllMasterDevices doesn't work for click-and-drag operations.
ximask.deviceid = XIAllDevices;
ximask.mask_len = XIMaskLen(XI_LASTEVENT);
ximask.mask = (unsigned char*)calloc(ximask.mask_len, sizeof(unsigned char));
XISetMask(ximask.mask, XI_RawKeyPress);
XISetMask(ximask.mask, XI_RawKeyRelease);
XISetMask(ximask.mask, XI_RawButtonPress);
XISetMask(ximask.mask, XI_RawButtonRelease);
XISetMask(ximask.mask, XI_RawMotion);
XISelectEvents(disp, win, &ximask, 1);
XSync(disp, False);
while(true)
{
XEvent ev;
XGenericEventCookie *cookie = (XGenericEventCookie*)&ev.xcookie;
XNextEvent(disp, (XEvent*)&ev);
if (XGetEventData(disp, cookie) && cookie->type == GenericEvent && cookie->extension == xi2opcode) {
switch (cookie->evtype) {
case XI_RawMotion: {
static int ss = 0;
const XIRawEvent *rawev = (const XIRawEvent*)cookie->data;
double relative_coords[2] = { 0., 0. };
parse_valuators(rawev->raw_values,rawev->valuators.mask,
rawev->valuators.mask_len,relative_coords,2);
if ((rawev->time == prev_time) && (relative_coords[0] == prev_rel_coords[0]) && (relative_coords[1] == prev_rel_coords[1])) {
break; // Ignore duplicated events.
}
xi2_mouse_x = xi2_mouse_x + relative_coords[0];
xi2_mouse_y = xi2_mouse_y + relative_coords[1];
prev_rel_coords[0] = relative_coords[0];
prev_rel_coords[1] = relative_coords[1];
prev_time = rawev->time;
}
}
}
XFreeEventData(disp, cookie);
if (exitthread) break;
}
XCloseDisplay(disp);
}
void xinput2_exit()
{
exitthread = true;
procThread->wait(5000);
procThread->terminate();
}
void xinput2_init()
{
disp = XOpenDisplay(nullptr);
if (!disp)
{
qWarning() << "Cannot open current X11 display";
return;
}
auto event = 0, err = 0, minor = 0, major = 2;
if (XQueryExtension(disp, "XInputExtension", &xi2opcode, &event, &err))
{
if (XIQueryVersion(disp, &major, &minor) == Success)
{
procThread = QThread::create(xinput2_proc);
procThread->start();
atexit(xinput2_exit);
}
}
}
void xinput2_poll()
{
if (procThread && mouse_capture)
{
mouse_x = xi2_mouse_x;
mouse_y = xi2_mouse_y;
XWindowAttributes winattrib{};
if (XGetWindowAttributes(disp, main_window->winId(), &winattrib))
{
auto globalPoint = main_window->mapToGlobal(QPoint(main_window->width() / 2, main_window->height() / 2));
XWarpPointer(disp, XRootWindow(disp, XScreenNumberOfScreen(winattrib.screen)), XRootWindow(disp, XScreenNumberOfScreen(winattrib.screen)), 0, 0, 0, 0, globalPoint.x(), globalPoint.y());
XFlush(disp);
}
}
xi2_mouse_x = 0;
xi2_mouse_y = 0;
}