268 lines
10 KiB
C++
268 lines
10 KiB
C++
#include "trackball.h"
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#include <chrono>
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#include <thread>
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#include "util/detour.h"
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#include "util/logging.h"
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#include "rawinput/rawinput.h"
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#include "games/io.h"
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#include "io.h"
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namespace games::ccj {
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bool MOUSE_TRACKBALL = false;
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bool MOUSE_TRACKBALL_USE_TOGGLE = false;
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uint8_t TRACKBALL_SENSITIVITY = 10;
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static HANDLE fakeHandle = (HANDLE)0xDEADBEEF;
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static HWND hWnd = nullptr;
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static WNDPROC wndProc = nullptr;
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static std::thread *tbThread = nullptr;
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static bool tbThreadRunning = false;
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static const wchar_t *fakeDeviceName = L"VID_1241&PID_1111";
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static const wchar_t *windowName = L"ChaseProject";
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static decltype(GetRawInputDeviceList) *GetRawInputDeviceList_orig = nullptr;
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static decltype(GetRawInputDeviceInfoW) *GetRawInputDeviceInfoW_orig = nullptr;
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static decltype(SetWindowLongPtrW) *SetWindowLongPtrW_orig = nullptr;
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static decltype(GetRawInputData) *GetRawInputData_orig = nullptr;
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static decltype(RegisterRawInputDevices) *RegisterRawInputDevices_orig = nullptr;
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static UINT WINAPI GetRawInputDeviceList_hook(PRAWINPUTDEVICELIST pRawInputDeviceList, PUINT puiNumDevices,
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UINT cbSize) {
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auto result = GetRawInputDeviceList_orig(pRawInputDeviceList, puiNumDevices, cbSize);
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if (result == 0xFFFFFFFF)
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return result;
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if (pRawInputDeviceList == NULL) {
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(*puiNumDevices)++;
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} else if (result < *puiNumDevices) {
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pRawInputDeviceList[result] = {fakeHandle, 0};
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result++;
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}
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return result;
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}
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static UINT WINAPI GetRawInputDeviceInfoW_hook(HANDLE hDevice, UINT uiCommand, LPVOID pData, PUINT pcbSize) {
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if (hDevice != fakeHandle || uiCommand != RIDI_DEVICENAME)
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return GetRawInputDeviceInfoW_orig(hDevice, uiCommand, pData, pcbSize);
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const auto requiredLen = (wcslen(fakeDeviceName) + 1) * sizeof(wchar_t);
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if (*pcbSize < requiredLen) {
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*pcbSize = requiredLen;
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return 0xFFFFFFFF;
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}
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if (pData == NULL) {
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*pcbSize = requiredLen;
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return 0;
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}
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wcscpy((wchar_t*)pData, fakeDeviceName);
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return requiredLen;
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}
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static LONG_PTR WINAPI SetWindowLongPtrW_hook(HWND _hWnd, int nIndex, LONG_PTR dwNewLong) {
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wchar_t buffer[256];
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if (nIndex != GWLP_WNDPROC || GetWindowTextW(_hWnd, buffer, 256) == 0 || !wcswcs(buffer, windowName))
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return SetWindowLongPtrW_orig(_hWnd, nIndex, dwNewLong);
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hWnd = _hWnd;
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wndProc = (WNDPROC)dwNewLong;
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return SetWindowLongPtrW_orig(_hWnd, nIndex, dwNewLong);
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}
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static UINT WINAPI GetRawInputData_hook(HRAWINPUT hRawInput, UINT uiCommand, LPVOID pData, PUINT pcbSize, UINT cbSizeHeader) {
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if (hRawInput != fakeHandle)
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return GetRawInputData_orig(hRawInput, uiCommand, pData, pcbSize, cbSizeHeader);
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if (pData == NULL) {
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if (uiCommand == RID_HEADER)
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*pcbSize = sizeof(RAWINPUTHEADER);
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else
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*pcbSize = sizeof(RAWINPUT);
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return 0;
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}
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const RAWINPUTHEADER header = { RIM_TYPEMOUSE, sizeof(RAWINPUT), fakeHandle, 0 };
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if (uiCommand == RID_HEADER) {
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if (*pcbSize < sizeof(RAWINPUTHEADER)) {
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SetLastError(ERROR_INSUFFICIENT_BUFFER);
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return 0xFFFFFFFF;
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}
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*((RAWINPUTHEADER*)pData) = header;
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return sizeof(RAWINPUTHEADER);
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} else if (uiCommand == RID_INPUT) {
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if (*pcbSize < sizeof(RAWINPUT)) {
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SetLastError(ERROR_INSUFFICIENT_BUFFER);
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return 0xFFFFFFFF;
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}
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RAWMOUSE rawMouse {};
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if (MOUSE_TRACKBALL) {
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static bool active = false;
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static bool lastState = false;
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static std::chrono::time_point<std::chrono::steady_clock> lastModified = std::chrono::steady_clock::now();
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static std::chrono::milliseconds debounceDuration(100);
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auto currentTime = std::chrono::steady_clock::now();
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bool pressed = GetAsyncKeyState(VK_RBUTTON) & 0x8000;
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bool focused = GetForegroundWindow() == hWnd;
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if (focused && MOUSE_TRACKBALL_USE_TOGGLE && pressed && (currentTime - lastModified > debounceDuration)) {
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active = !active;
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lastModified = currentTime;
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}
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if (focused && ((MOUSE_TRACKBALL_USE_TOGGLE && active) || (!MOUSE_TRACKBALL_USE_TOGGLE && pressed))) {
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POINT cursor;
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RECT client;
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GetClientRect(hWnd, &client);
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int sx = client.right - client.left;
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int sy = client.bottom - client.top;
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GetCursorPos(&cursor);
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ScreenToClient(hWnd, &cursor);
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static int lastX = cursor.x;
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static int lastY = cursor.y;
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if (!lastState) {
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lastX = cursor.x;
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lastY = cursor.y;
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lastState = true;
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}
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rawMouse.usFlags = MOUSE_MOVE_RELATIVE;
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rawMouse.lLastX = (int)((float)(cursor.x - lastX) * (float)TRACKBALL_SENSITIVITY / 20.0f);
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rawMouse.lLastY = (int)((float)(lastY - cursor.y) * (float)TRACKBALL_SENSITIVITY / 20.0f);
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bool updateCursor = false;
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if (cursor.x <= 0) {
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updateCursor = true;
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cursor.x = sx - 5;
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} else if (cursor.x >= sx - 1) {
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updateCursor = true;
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cursor.x = 5;
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}
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if (cursor.y <= 0) {
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updateCursor = true;
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cursor.y = sy - 5;
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} else if (cursor.y >= sy - 1) {
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updateCursor = true;
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cursor.y = 5;
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}
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lastX = cursor.x;
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lastY = cursor.y;
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if (updateCursor) {
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ClientToScreen(hWnd, &cursor);
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SetCursorPos(cursor.x, cursor.y);
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}
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} else if (lastState && !active) {
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lastState = false;
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}
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} else {
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rawMouse.usFlags = MOUSE_MOVE_RELATIVE;
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auto &analogs = get_analogs();
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if (analogs[Analogs::Trackball_DX].isSet() || analogs[Analogs::Trackball_DY].isSet()) {
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float x = GameAPI::Analogs::getState(RI_MGR, analogs[Analogs::Trackball_DX]) * 2.0f - 1.0f;
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float y = GameAPI::Analogs::getState(RI_MGR, analogs[Analogs::Trackball_DY]) * 2.0f - 1.0f;
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rawMouse.lLastX = (long) (x * (float) TRACKBALL_SENSITIVITY);
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rawMouse.lLastY = (long) (-y * (float) TRACKBALL_SENSITIVITY);
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}
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auto &buttons = get_buttons();
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if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Trackball_Up]))
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rawMouse.lLastY = TRACKBALL_SENSITIVITY;
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if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Trackball_Down]))
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rawMouse.lLastY = -TRACKBALL_SENSITIVITY;
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if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Trackball_Left]))
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rawMouse.lLastX = -TRACKBALL_SENSITIVITY;
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if (GameAPI::Buttons::getState(RI_MGR, buttons[Buttons::Trackball_Right]))
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rawMouse.lLastX = TRACKBALL_SENSITIVITY;
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}
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*((RAWINPUT*)pData) = { header, { rawMouse } };
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return sizeof(RAWINPUT);
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}
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return 0xFFFFFFFF;
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}
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static BOOL WINAPI RegisterRawInputDevices_hook(PCRAWINPUTDEVICE pRawInputDevices, UINT uiNumDevices, UINT cbSize) {
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if (uiNumDevices == 2 && pRawInputDevices[1].usUsage == HID_USAGE_GENERIC_GAMEPAD)
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uiNumDevices = 1;
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return RegisterRawInputDevices_orig(pRawInputDevices, uiNumDevices, cbSize);
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}
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void trackball_hook_init() {
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// avoid double init
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static bool initialized = false;
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if (initialized) {
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return;
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} else {
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initialized = true;
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}
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// announce
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log_info("trackball", "init");
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// user32
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const auto user32Dll = "user32.dll";
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detour::trampoline_try(user32Dll, "GetRawInputDeviceList",
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GetRawInputDeviceList_hook, &GetRawInputDeviceList_orig);
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detour::trampoline_try(user32Dll, "GetRawInputDeviceInfoW",
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GetRawInputDeviceInfoW_hook, &GetRawInputDeviceInfoW_orig);
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detour::trampoline_try(user32Dll, "SetWindowLongPtrW",
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SetWindowLongPtrW_hook, &SetWindowLongPtrW_orig);
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detour::trampoline_try(user32Dll, "GetRawInputData",
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GetRawInputData_hook, &GetRawInputData_orig);
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detour::trampoline_try(user32Dll, "RegisterRawInputDevices",
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RegisterRawInputDevices_hook, &RegisterRawInputDevices_orig);
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}
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void trackball_thread_start() {
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using namespace std::chrono_literals;
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tbThreadRunning = true;
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log_info("trackball", "thread start, use mouse: {}, toggle: {}", MOUSE_TRACKBALL, MOUSE_TRACKBALL_USE_TOGGLE);
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tbThread = new std::thread([&] {
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while (tbThreadRunning) {
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if (hWnd && wndProc) {
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wndProc(hWnd, WM_INPUT, RIM_INPUT, (LPARAM)fakeHandle);
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}
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if (!tbThreadRunning)
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break;
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std::this_thread::sleep_for(10ms);
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}
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});
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}
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void trackball_thread_stop() {
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tbThreadRunning = false;
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if (tbThread)
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tbThread->join();
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log_info("trackball", "thread stop");
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delete tbThread;
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}
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}
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