forked from TeamTofuShop/segatools
refactor all common parts and games
This commit is contained in:
255
common/hooklib/touch.c
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255
common/hooklib/touch.c
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/*
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This part (touch screen hook) is mostly taken from spicetools, which is GPL.
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This means there can be some license issues if you do use this code in some other places without including source code.
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*/
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#include <windows.h>
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#include <assert.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include "hook/com-proxy.h"
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#include "hook/table.h"
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#include "hooklib/config.h"
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#include "hooklib/dll.h"
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#include "hooklib/touch.h"
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#include "util/dprintf.h"
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/* API hooks */
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static LRESULT hook_wndProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam);
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static ATOM WINAPI hook_RegisterClassExA(
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WNDCLASSEXA* wndClass
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);
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static int WINAPI hook_GetSystemMetrics(
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int nIndex
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);
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static BOOL WINAPI hook_RegisterTouchWindow(
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HWND hwnd,
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ULONG ulFlags
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);
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static BOOL WINAPI hook_GetTouchInputInfo(
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HANDLE hTouchInput,
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UINT cInputs,
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PTOUCHINPUT pInputs,
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int cbSize
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);
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static HCURSOR WINAPI hook_SetCursor(HCURSOR cursor);
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/* Link pointers */
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static ATOM (WINAPI *next_RegisterClassExA)(
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const WNDCLASSEXA* wndClass
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);
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static int (WINAPI *next_GetSystemMetrics)(
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int nIndex
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);
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static BOOL (WINAPI *next_RegisterTouchWindow)(
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HWND hwnd,
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ULONG ulFlags
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);
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static BOOL (WINAPI *next_GetTouchInputInfo)(
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HANDLE hTouchInput,
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UINT cInputs,
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PTOUCHINPUT pInputs,
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int cbSize
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);
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static HCURSOR(WINAPI *next_SetCursor)(HCURSOR cursor);
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static bool touch_hook_initted;
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static bool touch_held;
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static HWND registered_hWnd;
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static struct touch_screen_config touch_config;
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static WNDPROC orig_wndProc;
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static HCURSOR defaultCursor;
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static const struct hook_symbol touch_hooks[] = {
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{
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.name = "RegisterClassExA",
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.patch = hook_RegisterClassExA,
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.link = (void**)&next_RegisterClassExA
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},
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{
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.name = "GetSystemMetrics",
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.patch = hook_GetSystemMetrics,
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.link = (void **) &next_GetSystemMetrics
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},
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{
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.name = "RegisterTouchWindow",
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.patch = hook_RegisterTouchWindow,
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.link = (void **) &next_RegisterTouchWindow
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},
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{
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.name = "GetTouchInputInfo",
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.patch = hook_GetTouchInputInfo,
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.link = (void **) &next_GetTouchInputInfo
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},
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{
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.name = "SetCursor",
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.patch = hook_SetCursor,
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.link = (void **) &next_SetCursor
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},
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};
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void touch_screen_hook_init(const struct touch_screen_config *cfg, HINSTANCE self)
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{
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assert(cfg != NULL);
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if (!cfg->enable) {
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return;
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}
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if (touch_hook_initted) {
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return;
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}
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touch_hook_initted = true;
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defaultCursor = LoadCursorA(NULL, IDC_CROSS);
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memcpy(&touch_config, cfg, sizeof(*cfg));
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touch_hook_insert_hooks(NULL);
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dprintf("TOUCH: hook enabled.\n");
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}
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void touch_hook_insert_hooks(HMODULE target)
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{
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hook_table_apply(
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target,
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"user32.dll",
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touch_hooks,
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_countof(touch_hooks));
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}
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static HCURSOR WINAPI hook_SetCursor(HCURSOR cursor) {
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if (cursor == 0 && touch_config.cursor)
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return next_SetCursor(defaultCursor);
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return next_SetCursor(cursor);
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}
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// remap mouse events to touch events
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static LRESULT hook_wndProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam) {
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if (hWnd == registered_hWnd && (Msg == WM_LBUTTONDOWN || Msg == WM_LBUTTONUP || (touch_held && Msg == WM_MOUSEMOVE))) {
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orig_wndProc(hWnd, WM_TOUCH, 1, 1);
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}
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return orig_wndProc(hWnd, Msg, wParam, lParam);
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}
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static ATOM WINAPI hook_RegisterClassExA(
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WNDCLASSEXA* wndClass
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) {
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if (wndClass->lpfnWndProc) {
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orig_wndProc = wndClass->lpfnWndProc;
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wndClass->lpfnWndProc = (WNDPROC) hook_wndProc;
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}
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return next_RegisterClassExA(wndClass);
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}
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// Spicetools misc/wintouchemu.cpp
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static int WINAPI hook_GetSystemMetrics(
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int nIndex
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)
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{
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if (nIndex == 94) return 0x01 | 0x02 | 0x40 | 0x80;
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int orig = next_GetSystemMetrics(nIndex);
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return orig;
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}
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static BOOL WINAPI hook_RegisterTouchWindow(
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HWND hwnd,
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ULONG ulFlags
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)
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{
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registered_hWnd = hwnd;
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return true;
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}
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// Converting mouse event to touch event
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static BOOL WINAPI hook_GetTouchInputInfo(
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HANDLE hTouchInput,
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UINT cInputs,
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PTOUCHINPUT pInputs,
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int cbSize
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)
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{
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bool result = false;
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int sw, sh, cw, ch;
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RECT cRect;
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sw = GetSystemMetrics(SM_CXSCREEN);
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sh = GetSystemMetrics(SM_CYSCREEN);
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GetClientRect(registered_hWnd, &cRect);
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cw = cRect.right - cRect.left;
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ch = cRect.bottom - cRect.top;
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static bool mouse_state_old = false;
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for (UINT input = 0; input < cInputs; input++) {
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TOUCHINPUT *touch_input = &pInputs[input];
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touch_input->x = 0;
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touch_input->y = 0;
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touch_input->hSource = NULL;
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touch_input->dwID = 0;
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touch_input->dwFlags = 0;
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touch_input->dwMask = 0;
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touch_input->dwTime = 0;
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touch_input->dwExtraInfo = 0;
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touch_input->cxContact = 0;
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touch_input->cyContact = 0;
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bool mouse_state = (GetKeyState(VK_LBUTTON) & 0x100) != 0;
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if (mouse_state || mouse_state_old) {
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POINT cursorPos;
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GetCursorPos(&cursorPos);
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if (touch_config.remap) {
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ScreenToClient(registered_hWnd, &cursorPos);
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cursorPos.x = (long)(cursorPos.x * ((double)sw / cw));
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cursorPos.y = (long)(cursorPos.y * ((double)sh / ch));
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}
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result = true;
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touch_input->x = cursorPos.x * 100;
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touch_input->y = cursorPos.y * 100;
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touch_input->hSource = hTouchInput;
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touch_input->dwID = 0;
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touch_input->dwFlags = 0;
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if (mouse_state && !mouse_state_old) {
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touch_input->dwFlags |= TOUCHEVENTF_DOWN;
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touch_held = true;
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} else if (mouse_state && mouse_state_old) {
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touch_input->dwFlags |= TOUCHEVENTF_MOVE;
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} else if (!mouse_state && mouse_state_old) {
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touch_input->dwFlags |= TOUCHEVENTF_UP;
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touch_held = false;
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}
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touch_input->dwMask = 0;
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touch_input->dwTime = 0;
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touch_input->dwExtraInfo = 0;
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touch_input->cxContact = 0;
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touch_input->cyContact = 0;
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}
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mouse_state_old = mouse_state;
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}
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return result;
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}
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