goldberg_emulator/overlay_experimental/windows/OpenGL_Hook.h

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/*
* 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/>.
*/
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#pragma once
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#include "../internal_includes.h"
class OpenGL_Hook :
public Renderer_Hook,
public Base_Hook
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{
public:
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static constexpr const char *DLL_NAME = "opengl32.dll";
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using wglSwapBuffers_t = BOOL(WINAPI*)(HDC);
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private:
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static OpenGL_Hook* _inst;
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// Variables
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bool _Hooked;
bool _WindowsHooked;
bool _Initialized;
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HWND _LastWindow;
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std::set<std::shared_ptr<uint64_t>> _ImageResources;
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// Functions
OpenGL_Hook();
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void _ResetRenderState();
void _PrepareForOverlay(HDC hDC);
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// Hook to render functions
static BOOL WINAPI MywglSwapBuffers(HDC hDC);
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wglSwapBuffers_t wglSwapBuffers;
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public:
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std::string LibraryName;
virtual ~OpenGL_Hook();
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virtual bool StartHook(std::function<bool(bool)> key_combination_callback);
virtual bool IsStarted();
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static OpenGL_Hook* Inst();
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virtual std::string GetLibraryName() const;
void LoadFunctions(wglSwapBuffers_t pfnwglSwapBuffers);
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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);
};