mirror of
https://github.com/LizardByte/Sunshine.git
synced 2024-11-18 11:10:04 +00:00
365 lines
11 KiB
C++
365 lines
11 KiB
C++
#include <libevdev/libevdev.h>
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#include <libevdev/libevdev-uinput.h>
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#include <X11/X.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/XKBlib.h>
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#include <X11/extensions/XTest.h>
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#include <iostream>
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#include <string.h>
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#include "common.h"
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#include "utility.h"
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namespace platf {
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constexpr std::uint16_t DPAD_UP = 0x0001;
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constexpr std::uint16_t DPAD_DOWN = 0x0002;
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constexpr std::uint16_t DPAD_LEFT = 0x0004;
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constexpr std::uint16_t DPAD_RIGHT = 0x0008;
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constexpr std::uint16_t START = 0x0010;
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constexpr std::uint16_t BACK = 0x0020;
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constexpr std::uint16_t LEFT_STICK = 0x0040;
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constexpr std::uint16_t RIGHT_STICK = 0x0080;
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constexpr std::uint16_t LEFT_BUTTON = 0x0100;
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constexpr std::uint16_t RIGHT_BUTTON = 0x0200;
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constexpr std::uint16_t HOME = 0x0400;
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constexpr std::uint16_t A = 0x1000;
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constexpr std::uint16_t B = 0x2000;
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constexpr std::uint16_t X = 0x4000;
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constexpr std::uint16_t Y = 0x8000;
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using namespace std::literals;
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using evdev_t = util::safe_ptr<libevdev, libevdev_free>;
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using uinput_t = util::safe_ptr<libevdev_uinput, libevdev_uinput_destroy>;
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struct input_raw_t {
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evdev_t dev;
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uinput_t uinput;
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display_t display;
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gamepad_state_t gamepad_state;
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};
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//TODO: Use libevdev for keyboard and mouse, then any mention of X11 can be removed from linux_input.cpp
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struct display_attr_t {
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display_attr_t() : display { XOpenDisplay(nullptr) }, window { DefaultRootWindow(display) }, attr {} {
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XGetWindowAttributes(display, window, &attr);
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}
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~display_attr_t() {
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XCloseDisplay(display);
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}
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Display *display;
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Window window;
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XWindowAttributes attr;
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};
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void move_mouse(input_t &input, int deltaX, int deltaY) {
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auto &disp = *((display_attr_t *) ((input_raw_t*)input.get())->display.get());
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XWarpPointer(disp.display, None, None, 0, 0, 0, 0, deltaX, deltaY);
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XFlush(disp.display);
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}
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void button_mouse(input_t &input, int button, bool release) {
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auto &disp = *((display_attr_t *) ((input_raw_t*)input.get())->display.get());
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XTestFakeButtonEvent(disp.display, button, !release, CurrentTime);
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XFlush(disp.display);
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}
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void scroll(input_t &input, int distance) {
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auto &disp = *((display_attr_t *) ((input_raw_t*)input.get())->display.get());
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int button = distance > 0 ? 4 : 5;
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distance = std::abs(distance / 120);
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while(distance > 0) {
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--distance;
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XTestFakeButtonEvent(disp.display, button, True, CurrentTime);
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XTestFakeButtonEvent(disp.display, button, False, CurrentTime);
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XSync(disp.display, 0);
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}
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XFlush(disp.display);
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}
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uint16_t keysym(uint16_t modcode) {
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constexpr auto VK_NUMPAD = 0x60;
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constexpr auto VK_F1 = 0x70;
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if(modcode >= VK_NUMPAD && modcode < VK_NUMPAD + 10) {
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return XK_KP_0 + (modcode - VK_NUMPAD);
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}
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if(modcode >= VK_F1 && modcode < VK_F1 + 13) {
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return XK_F1 + (modcode - VK_F1);
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}
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switch(modcode) {
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case 0x08:
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return XK_BackSpace;
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case 0x09:
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return XK_Tab;
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case 0x0D:
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return XK_Return;
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case 0x13:
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return XK_Pause;
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case 0x14:
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return XK_Caps_Lock;
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case 0x1B:
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return XK_Escape;
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case 0x21:
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return XK_Page_Up;
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case 0x22:
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return XK_Page_Down;
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case 0x23:
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return XK_End;
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case 0x24:
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return XK_Home;
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case 0x25:
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return XK_Left;
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case 0x26:
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return XK_Up;
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case 0x27:
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return XK_Right;
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case 0x28:
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return XK_Down;
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case 0x29:
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return XK_Select;
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case 0x2B:
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return XK_Execute;
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case 0x2C:
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return XK_Print; //FIXME: is this correct? (printscreen)
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case 0x2D:
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return XK_Insert;
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case 0x2E:
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return XK_Delete;
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case 0x2F:
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return XK_Help;
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case 0x6A:
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return XK_KP_Multiply;
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case 0x6B:
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return XK_KP_Add;
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case 0x6C:
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return XK_KP_Decimal; //FIXME: is this correct? (Comma)
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case 0x6D:
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return XK_KP_Subtract;
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case 0x6E:
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return XK_KP_Separator; //FIXME: is this correct? (Period)
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case 0x6F:
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return XK_KP_Divide;
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case 0x90:
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return XK_Num_Lock; //FIXME: is this correct: (NumlockClear)
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case 0x91:
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return XK_Scroll_Lock;
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case 0xA0:
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return XK_Shift_L;
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case 0xA1:
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return XK_Shift_R;
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case 0xA2:
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return XK_Control_L;
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case 0xA3:
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return XK_Control_R;
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case 0xA4:
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return XK_Alt_L;
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case 0xA5: /* return XK_Alt_R; */
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return XK_Super_L;
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case 0xBA:
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return XK_semicolon;
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case 0xBB:
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return XK_equal;
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case 0xBC:
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return XK_comma;
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case 0xBD:
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return XK_minus;
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case 0xBE:
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return XK_period;
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case 0xBF:
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return XK_slash;
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case 0xC0:
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return XK_grave;
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case 0xDB:
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return XK_bracketleft;
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case 0xDC:
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return XK_backslash;
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case 0xDD:
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return XK_bracketright;
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case 0xDE:
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return XK_apostrophe;
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case 0x01: //FIXME: Moonlight doesn't support Super key
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return XK_Super_L;
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case 0x02:
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return XK_Super_R;
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}
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return modcode;
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}
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void keyboard(input_t &input, uint16_t modcode, bool release) {
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auto &disp = *((display_attr_t *) ((input_raw_t*)input.get())->display.get());
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KeyCode kc = XKeysymToKeycode(disp.display, keysym(modcode));
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if(!kc) {
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return;
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}
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XTestFakeKeyEvent(disp.display, kc, !release, 0);
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XSync(disp.display, 0);
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XFlush(disp.display);
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}
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void gamepad(input_t &input, const gamepad_state_t &gamepad_state) {
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auto &gp = *(input_raw_t*)input.get();
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auto bf = gamepad_state.buttonFlags ^ gp.gamepad_state.buttonFlags;
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auto bf_new = gamepad_state.buttonFlags;
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if(bf) {
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// up pressed == -1, down pressed == 1, else 0
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if(DPAD_UP & bf) {
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int val = bf_new & DPAD_UP ? -1 : (bf_new & DPAD_DOWN ? 1 : 0);
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libevdev_uinput_write_event(gp.uinput.get(), EV_ABS, ABS_HAT0Y, val);
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}
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else if(DPAD_DOWN & bf) {
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int val = bf_new & DPAD_DOWN ? 1 : 0;
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libevdev_uinput_write_event(gp.uinput.get(), EV_ABS, ABS_HAT0Y, val);
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}
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if(DPAD_LEFT & bf) {
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int val = bf_new & DPAD_LEFT ? -1 : (bf_new & DPAD_RIGHT ? 1 : 0);
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libevdev_uinput_write_event(gp.uinput.get(), EV_ABS, ABS_HAT0X, val);
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}
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else if(DPAD_RIGHT & bf) {
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int val = bf_new & DPAD_RIGHT ? 1 : 0;
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libevdev_uinput_write_event(gp.uinput.get(), EV_ABS, ABS_HAT0X, val);
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}
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if(START & bf) libevdev_uinput_write_event(gp.uinput.get(), EV_KEY, BTN_START, bf_new & START ? 1 : 0);
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if(BACK & bf) libevdev_uinput_write_event(gp.uinput.get(), EV_KEY, BTN_SELECT, bf_new & BACK ? 1 : 0);
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if(LEFT_STICK & bf) libevdev_uinput_write_event(gp.uinput.get(), EV_KEY, BTN_THUMBL, bf_new & LEFT_STICK ? 1 : 0);
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if(RIGHT_STICK & bf) libevdev_uinput_write_event(gp.uinput.get(), EV_KEY, BTN_THUMBR, bf_new & RIGHT_STICK ? 1 : 0);
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if(LEFT_BUTTON & bf) libevdev_uinput_write_event(gp.uinput.get(), EV_KEY, BTN_TL, bf_new & LEFT_BUTTON ? 1 : 0);
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if(RIGHT_BUTTON & bf) libevdev_uinput_write_event(gp.uinput.get(), EV_KEY, BTN_TR, bf_new & RIGHT_BUTTON ? 1 : 0);
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if(HOME & bf) libevdev_uinput_write_event(gp.uinput.get(), EV_KEY, BTN_MODE, bf_new & HOME ? 1 : 0);
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if(A & bf) libevdev_uinput_write_event(gp.uinput.get(), EV_KEY, BTN_SOUTH, bf_new & A ? 1 : 0);
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if(B & bf) libevdev_uinput_write_event(gp.uinput.get(), EV_KEY, BTN_EAST, bf_new & B ? 1 : 0);
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if(X & bf) libevdev_uinput_write_event(gp.uinput.get(), EV_KEY, BTN_NORTH, bf_new & X ? 1 : 0);
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if(Y & bf) libevdev_uinput_write_event(gp.uinput.get(), EV_KEY, BTN_WEST, bf_new & Y ? 1 : 0);
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}
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if(gp.gamepad_state.lt != gamepad_state.lt) {
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libevdev_uinput_write_event(gp.uinput.get(), EV_ABS, ABS_Z, gamepad_state.lt);
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}
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if(gp.gamepad_state.rt != gamepad_state.rt) {
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libevdev_uinput_write_event(gp.uinput.get(), EV_ABS, ABS_RZ, gamepad_state.rt);
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}
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if(gp.gamepad_state.lsX != gamepad_state.lsX) {
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libevdev_uinput_write_event(gp.uinput.get(), EV_ABS, ABS_X, gamepad_state.lsX);
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}
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if(gp.gamepad_state.lsY != gamepad_state.lsY) {
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libevdev_uinput_write_event(gp.uinput.get(), EV_ABS, ABS_Y, -gamepad_state.lsY);
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}
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if(gp.gamepad_state.rsX != gamepad_state.rsX) {
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libevdev_uinput_write_event(gp.uinput.get(), EV_ABS, ABS_RX, gamepad_state.rsX);
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}
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if(gp.gamepad_state.rsY != gamepad_state.rsY) {
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libevdev_uinput_write_event(gp.uinput.get(), EV_ABS, ABS_RY, -gamepad_state.rsY);
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}
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gp.gamepad_state = gamepad_state;
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libevdev_uinput_write_event(gp.uinput.get(), EV_SYN, SYN_REPORT, 0);
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}
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input_t input() {
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input_t result { new input_raw_t() };
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auto &gp = *(input_raw_t*)result.get();
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gp.dev.reset(libevdev_new());
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input_absinfo stick {
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0,
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-32768, 32767,
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16,
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128,
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0
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};
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input_absinfo trigger {
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0,
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0, 255,
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0,
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0,
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0
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};
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input_absinfo dpad {
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0,
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-1, 1,
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0,
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0,
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0
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};
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libevdev_set_uniq(gp.dev.get(), "Sunshine Gamepad");
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libevdev_set_id_product(gp.dev.get(), 0x28E);
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libevdev_set_id_vendor(gp.dev.get(), 0x45E);
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libevdev_set_id_bustype(gp.dev.get(), 0x3);
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libevdev_set_id_version(gp.dev.get(), 0x110);
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libevdev_set_name(gp.dev.get(), "Microsoft X-Box 360 pad");
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libevdev_enable_event_type(gp.dev.get(), EV_KEY);
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libevdev_enable_event_code(gp.dev.get(), EV_KEY, BTN_WEST, nullptr);
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libevdev_enable_event_code(gp.dev.get(), EV_KEY, BTN_EAST, nullptr);
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libevdev_enable_event_code(gp.dev.get(), EV_KEY, BTN_NORTH, nullptr);
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libevdev_enable_event_code(gp.dev.get(), EV_KEY, BTN_SOUTH, nullptr);
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libevdev_enable_event_code(gp.dev.get(), EV_KEY, BTN_THUMBL, nullptr);
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libevdev_enable_event_code(gp.dev.get(), EV_KEY, BTN_THUMBR, nullptr);
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libevdev_enable_event_code(gp.dev.get(), EV_KEY, BTN_TR, nullptr);
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libevdev_enable_event_code(gp.dev.get(), EV_KEY, BTN_TL, nullptr);
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libevdev_enable_event_code(gp.dev.get(), EV_KEY, BTN_SELECT, nullptr);
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libevdev_enable_event_code(gp.dev.get(), EV_KEY, BTN_MODE, nullptr);
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libevdev_enable_event_code(gp.dev.get(), EV_KEY, BTN_START, nullptr);
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libevdev_enable_event_type(gp.dev.get(), EV_ABS);
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libevdev_enable_event_code(gp.dev.get(), EV_ABS, ABS_HAT0Y, &dpad);
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libevdev_enable_event_code(gp.dev.get(), EV_ABS, ABS_HAT0X, &dpad);
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libevdev_enable_event_code(gp.dev.get(), EV_ABS, ABS_Z, &trigger);
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libevdev_enable_event_code(gp.dev.get(), EV_ABS, ABS_RZ, &trigger);
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libevdev_enable_event_code(gp.dev.get(), EV_ABS, ABS_X, &stick);
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libevdev_enable_event_code(gp.dev.get(), EV_ABS, ABS_RX, &stick);
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libevdev_enable_event_code(gp.dev.get(), EV_ABS, ABS_Y, &stick);
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libevdev_enable_event_code(gp.dev.get(), EV_ABS, ABS_RY, &stick);
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libevdev_uinput *buf;
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int err = libevdev_uinput_create_from_device(gp.dev.get(), LIBEVDEV_UINPUT_OPEN_MANAGED, &buf);
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gp.uinput.reset(buf);
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if(err) {
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std::cout << "Could not create Sunshine Gamepad: "sv << strerror(-err) << std::endl;
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return nullptr;
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}
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gp.display = display();
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return result;
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}
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void freeInput(void *p) {
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auto *input = (input_raw_t*)p;
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delete input;
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}
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}
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