goldberg_emulator/overlay_experimental/windows/DX9_Hook.h
2022-08-13 14:32:43 -04:00

75 lines
2.9 KiB
C++

/*
* Copyright (C) Nemirtingas
* This file is part of the ingame overlay project
*
* The ingame overlay project is free software; you can redistribute it
* and/or modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* The ingame overlay project is distributed in the hope that it will be
* useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the ingame overlay project; if not, see
* <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "../internal_includes.h"
#include <d3d9.h>
class DX9_Hook :
public ingame_overlay::Renderer_Hook,
public Base_Hook
{
public:
static constexpr const char *DLL_NAME = "d3d9.dll";
private:
static DX9_Hook* _inst;
// Variables
bool _Hooked;
bool _WindowsHooked;
bool _Initialized;
HWND _LastWindow;
IDirect3DDevice9* _pDevice;
std::set<std::shared_ptr<uint64_t>> _ImageResources;
// Functions
DX9_Hook();
void _ResetRenderState();
void _PrepareForOverlay(IDirect3DDevice9* pDevice, HWND destWindow);
// Hook to render functions
decltype(&IDirect3DDevice9::Reset) Reset;
decltype(&IDirect3DDevice9::Present) Present;
decltype(&IDirect3DDevice9Ex::PresentEx) PresentEx;
decltype(&IDirect3DSwapChain9::Present) SwapChainPresent;
static HRESULT STDMETHODCALLTYPE MyReset(IDirect3DDevice9* _this, D3DPRESENT_PARAMETERS* pPresentationParameters);
static HRESULT STDMETHODCALLTYPE MyPresent(IDirect3DDevice9* _this, CONST RECT* pSourceRect, CONST RECT* pDestRect, HWND hDestWindowOverride, CONST RGNDATA* pDirtyRegion);
static HRESULT STDMETHODCALLTYPE MyPresentEx(IDirect3DDevice9Ex* _this, CONST RECT* pSourceRect, CONST RECT* pDestRect, HWND hDestWindowOverride, CONST RGNDATA* pDirtyRegion, DWORD dwFlags);
static HRESULT STDMETHODCALLTYPE MySwapChainPresent(IDirect3DSwapChain9* _this, CONST RECT* pSourceRect, CONST RECT* pDestRect, HWND hDestWindowOverride, CONST RGNDATA* pDirtyRegion, DWORD dwFlags);
public:
std::string LibraryName;
virtual ~DX9_Hook();
virtual bool StartHook(std::function<bool(bool)> key_combination_callback, std::set<ingame_overlay::ToggleKey> toggle_keys);
virtual bool IsStarted();
static DX9_Hook* Inst();
virtual std::string GetLibraryName() const;
void LoadFunctions(decltype(Present) PresentFcn, decltype(Reset) ResetFcn, decltype(PresentEx) PresentExFcn, decltype(&IDirect3DSwapChain9::Present) SwapChainPresentFcn);
virtual std::weak_ptr<uint64_t> CreateImageResource(const void* image_data, uint32_t width, uint32_t height);
virtual void ReleaseImageResource(std::weak_ptr<uint64_t> resource);
};