Moved every platform specific code to their own folder

2025-12-05 11:44:53 +01:00 · 2019-09-01 20:48:27 +02:00 · 2019-09-01 20:48:27 +02:00 · 1785ae6eaf
commit 1785ae6eaf
parent dd13377be7
37 changed files with 9 additions and 1460 deletions
--- a/overlay_experimental/windows/Windows_Hook.cpp
+++ b/overlay_experimental/windows/Windows_Hook.cpp
@ -0,0 +1,181 @@
+#include "Windows_Hook.h"
+#include "Renderer_Detector.h"
+#include "../dll/dll.h"
+
+#ifndef NO_OVERLAY
+
+#include <imgui.h>
+#include <impls/imgui_impl_win32.h>
+
+extern LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
+
+Windows_Hook* Windows_Hook::_inst = nullptr;
+
+bool Windows_Hook::start_hook()
+{
+    bool res = true;
+    if (!hooked)
+    {
+        GetRawInputBuffer = ::GetRawInputBuffer;
+        GetRawInputData = ::GetRawInputData;
+
+        PRINT_DEBUG("Hooked Windows\n");
+
+        BeginHook();
+        HookFuncs(
+            std::make_pair<void**, void*>(&(PVOID&)GetRawInputBuffer, &Windows_Hook::MyGetRawInputBuffer),
+            std::make_pair<void**, void*>(&(PVOID&)GetRawInputData  , &Windows_Hook::MyGetRawInputData)
+        );
+        EndHook();
+
+        hooked = true;
+    }
+    return res;
+}
+
+void Windows_Hook::resetRenderState()
+{
+    if (initialized)
+    {
+        initialized = false;
+        SetWindowLongPtr(_game_hwnd, GWLP_WNDPROC, (LONG_PTR)_game_wndproc);
+        _game_hwnd = nullptr;
+        _game_wndproc = nullptr;
+        ImGui_ImplWin32_Shutdown();
+    }
+}
+
+void Windows_Hook::prepareForOverlay(HWND hWnd)
+{
+    if (!initialized)
+    {
+        ImGui_ImplWin32_Init(hWnd);
+
+        _game_hwnd = hWnd;
+        _game_wndproc = (WNDPROC)SetWindowLongPtr(hWnd, GWLP_WNDPROC, (LONG_PTR)&Windows_Hook::HookWndProc);
+
+        initialized = true;
+    }
+
+    ImGui_ImplWin32_NewFrame();
+}
+
+HWND Windows_Hook::GetGameHwnd() const
+{
+    return _game_hwnd;
+}
+
+WNDPROC Windows_Hook::GetGameWndProc() const
+{
+    return _game_wndproc;
+}
+
+/////////////////////////////////////////////////////////////////////////////////////
+// Windows window hooks
+bool IgnoreMsg(UINT uMsg)
+{
+    switch (uMsg)
+    {
+        // Mouse Events
+    case WM_MOUSEMOVE:
+    case WM_MOUSEWHEEL: case WM_MOUSEHWHEEL:
+    case WM_LBUTTONUP: case WM_LBUTTONDOWN: case WM_LBUTTONDBLCLK:
+    case WM_RBUTTONUP: case WM_RBUTTONDOWN: case WM_RBUTTONDBLCLK:
+    case WM_MBUTTONUP: case WM_MBUTTONDOWN: case WM_MBUTTONDBLCLK:
+    case WM_XBUTTONUP: case WM_XBUTTONDOWN: case WM_XBUTTONDBLCLK:
+    case WM_MOUSEACTIVATE: case WM_MOUSEHOVER: case WM_MOUSELEAVE:
+        // Keyboard Events
+    case WM_KEYDOWN: case WM_KEYUP:
+    case WM_SYSKEYDOWN: case WM_SYSKEYUP: case WM_SYSDEADCHAR:
+    case WM_CHAR: case WM_UNICHAR: case WM_DEADCHAR:
+        // Raw Input Events
+    case WM_INPUT:
+        return true;
+    }
+    return false;
+}
+
+LRESULT CALLBACK Windows_Hook::HookWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+    Steam_Overlay* overlay = get_steam_client()->steam_overlay;
+    bool show = overlay->ShowOverlay();
+    // Is the event is a key press
+    if (uMsg == WM_KEYDOWN)
+    {
+        // Tab is pressed and was not pressed before
+        if (wParam == VK_TAB && !(lParam & (1 << 30)))
+        {
+            // If Left Shift is pressed
+            if (GetAsyncKeyState(VK_LSHIFT) & (1 << 15))
+            {
+                overlay->ShowOverlay(!overlay->ShowOverlay());
+                if (overlay->ShowOverlay())
+                    show = true;
+            }
+        }
+    }
+
+    if (show)
+    {
+        ImGui_ImplWin32_WndProcHandler(hWnd, uMsg, wParam, lParam);
+        if (IgnoreMsg(uMsg))
+            return 0;
+    }
+
+    // Call the overlay window procedure
+    return CallWindowProc(Windows_Hook::Inst()->_game_wndproc, hWnd, uMsg, wParam, lParam);
+}
+
+UINT WINAPI Windows_Hook::MyGetRawInputBuffer(PRAWINPUT pData, PUINT pcbSize, UINT cbSizeHeader)
+{
+    if (!get_steam_client()->steam_overlay->ShowOverlay())
+        return Windows_Hook::Inst()->GetRawInputBuffer(pData, pcbSize, cbSizeHeader);
+
+    return -1;
+}
+
+UINT WINAPI Windows_Hook::MyGetRawInputData(HRAWINPUT hRawInput, UINT uiCommand, LPVOID pData, PUINT pcbSize, UINT cbSizeHeader)
+{
+    if (!get_steam_client()->steam_overlay->ShowOverlay())
+        return Windows_Hook::Inst()->GetRawInputData(hRawInput, uiCommand, pData, pcbSize, cbSizeHeader);
+
+    return -1;
+}
+/////////////////////////////////////////////////////////////////////////////////////
+
+Windows_Hook::Windows_Hook() :
+    initialized(false),
+    hooked(false),
+    _game_hwnd(nullptr),
+    _game_wndproc(nullptr),
+    GetRawInputBuffer(nullptr),
+    GetRawInputData(nullptr)
+{
+    //_library = LoadLibrary(DLL_NAME);
+}
+
+Windows_Hook::~Windows_Hook()
+{
+    PRINT_DEBUG("Windows Hook removed\n");
+
+    resetRenderState();
+
+    //FreeLibrary(reinterpret_cast<HMODULE>(_library));
+
+    _inst = nullptr;
+}
+
+Windows_Hook* Windows_Hook::Inst()
+{
+    if (_inst == nullptr)
+        _inst = new Windows_Hook;
+
+    return _inst;
+}
+
+const char* Windows_Hook::get_lib_name() const
+{
+    return DLL_NAME;
+}
+
+#endif//NO_OVERLAY