mirror of
https://github.com/Detanup01/gbe_fork.git
synced 2024-12-30 20:34:14 +08:00
328 lines
9.3 KiB
C++
328 lines
9.3 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/>.
|
|
*/
|
|
|
|
#include "DX11_Hook.h"
|
|
#include "Windows_Hook.h"
|
|
|
|
#include <imgui.h>
|
|
#include <backends/imgui_impl_dx11.h>
|
|
|
|
DX11_Hook* DX11_Hook::_inst = nullptr;
|
|
|
|
template<typename T>
|
|
inline void SafeRelease(T*& pUnk)
|
|
{
|
|
if (pUnk != nullptr)
|
|
{
|
|
pUnk->Release();
|
|
pUnk = nullptr;
|
|
}
|
|
}
|
|
|
|
static HRESULT GetDeviceAndCtxFromSwapchain(IDXGISwapChain* pSwapChain, ID3D11Device** ppDevice, ID3D11DeviceContext** ppContext)
|
|
{
|
|
HRESULT ret = pSwapChain->GetDevice(IID_PPV_ARGS(ppDevice));
|
|
|
|
if (SUCCEEDED(ret))
|
|
(*ppDevice)->GetImmediateContext(ppContext);
|
|
|
|
return ret;
|
|
}
|
|
|
|
bool DX11_Hook::StartHook(std::function<bool(bool)> key_combination_callback, std::set<ingame_overlay::ToggleKey> toggle_keys)
|
|
{
|
|
if (!_Hooked)
|
|
{
|
|
if (Present == nullptr || ResizeTarget == nullptr || ResizeBuffers == nullptr)
|
|
{
|
|
SPDLOG_WARN("Failed to hook DirectX 11: Rendering functions missing.");
|
|
return false;
|
|
}
|
|
|
|
if (!Windows_Hook::Inst()->StartHook(key_combination_callback, toggle_keys))
|
|
return false;
|
|
|
|
_WindowsHooked = true;
|
|
|
|
SPDLOG_INFO("Hooked DirectX 11");
|
|
_Hooked = true;
|
|
|
|
BeginHook();
|
|
HookFuncs(
|
|
std::make_pair<void**, void*>(&(PVOID&)Present , &DX11_Hook::MyPresent),
|
|
std::make_pair<void**, void*>(&(PVOID&)ResizeTarget , &DX11_Hook::MyResizeTarget),
|
|
std::make_pair<void**, void*>(&(PVOID&)ResizeBuffers, &DX11_Hook::MyResizeBuffers)
|
|
);
|
|
if (Present1 != nullptr)
|
|
{
|
|
HookFuncs(
|
|
std::make_pair<void**, void*>(&(PVOID&)Present1, &DX11_Hook::MyPresent1)
|
|
);
|
|
}
|
|
EndHook();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool DX11_Hook::IsStarted()
|
|
{
|
|
return _Hooked;
|
|
}
|
|
|
|
void DX11_Hook::_ResetRenderState()
|
|
{
|
|
if (_Initialized)
|
|
{
|
|
OverlayHookReady(false);
|
|
|
|
ImGui_ImplDX11_Shutdown();
|
|
Windows_Hook::Inst()->ResetRenderState();
|
|
//ImGui::DestroyContext();
|
|
|
|
SafeRelease(mainRenderTargetView);
|
|
SafeRelease(pContext);
|
|
SafeRelease(pDevice);
|
|
|
|
_Initialized = false;
|
|
}
|
|
}
|
|
|
|
// Try to make this function and overlay's proc as short as possible or it might affect game's fps.
|
|
void DX11_Hook::_PrepareForOverlay(IDXGISwapChain* pSwapChain)
|
|
{
|
|
DXGI_SWAP_CHAIN_DESC desc;
|
|
pSwapChain->GetDesc(&desc);
|
|
|
|
if (!_Initialized)
|
|
{
|
|
pDevice = nullptr;
|
|
if (FAILED(GetDeviceAndCtxFromSwapchain(pSwapChain, &pDevice, &pContext)))
|
|
return;
|
|
|
|
ID3D11Texture2D* pBackBuffer;
|
|
pSwapChain->GetBuffer(0, IID_PPV_ARGS(&pBackBuffer));
|
|
|
|
pDevice->CreateRenderTargetView(pBackBuffer, NULL, &mainRenderTargetView);
|
|
|
|
//ID3D11RenderTargetView* targets[D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT] = {};
|
|
//pContext->OMGetRenderTargets(D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT, targets, NULL);
|
|
//bool bind_target = true;
|
|
//
|
|
//for (unsigned i = 0; i < D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT && targets[i] != nullptr; ++i)
|
|
//{
|
|
// ID3D11Resource* res = NULL;
|
|
// targets[i]->GetResource(&res);
|
|
// if (res)
|
|
// {
|
|
// if (res == (ID3D11Resource*)pBackBuffer)
|
|
// {
|
|
// pDevice->CreateRenderTargetView(pBackBuffer, NULL, &mainRenderTargetView);
|
|
// }
|
|
//
|
|
// res->Release();
|
|
// }
|
|
//
|
|
// targets[i]->Release();
|
|
//}
|
|
|
|
SafeRelease(pBackBuffer);
|
|
|
|
if (mainRenderTargetView == nullptr)
|
|
return;
|
|
|
|
if(ImGui::GetCurrentContext() == nullptr)
|
|
ImGui::CreateContext((ImFontAtlas *)ImGuiFontAtlas);
|
|
|
|
ImGui_ImplDX11_Init(pDevice, pContext);
|
|
|
|
Windows_Hook::Inst()->SetInitialWindowSize(desc.OutputWindow);
|
|
|
|
_Initialized = true;
|
|
OverlayHookReady(true);
|
|
}
|
|
|
|
if (ImGui_ImplDX11_NewFrame() && Windows_Hook::Inst()->PrepareForOverlay(desc.OutputWindow))
|
|
{
|
|
ImGui::NewFrame();
|
|
|
|
OverlayProc();
|
|
|
|
ImGui::Render();
|
|
|
|
if (mainRenderTargetView)
|
|
{
|
|
pContext->OMSetRenderTargets(1, &mainRenderTargetView, NULL);
|
|
}
|
|
|
|
ImGui_ImplDX11_RenderDrawData(ImGui::GetDrawData());
|
|
}
|
|
}
|
|
|
|
HRESULT STDMETHODCALLTYPE DX11_Hook::MyPresent(IDXGISwapChain *_this, UINT SyncInterval, UINT Flags)
|
|
{
|
|
auto inst = DX11_Hook::Inst();
|
|
inst->_PrepareForOverlay(_this);
|
|
return (_this->*inst->Present)(SyncInterval, Flags);
|
|
}
|
|
|
|
HRESULT STDMETHODCALLTYPE DX11_Hook::MyResizeTarget(IDXGISwapChain* _this, const DXGI_MODE_DESC* pNewTargetParameters)
|
|
{
|
|
auto inst = DX11_Hook::Inst();
|
|
inst->_ResetRenderState();
|
|
return (_this->*inst->ResizeTarget)(pNewTargetParameters);
|
|
}
|
|
|
|
HRESULT STDMETHODCALLTYPE DX11_Hook::MyResizeBuffers(IDXGISwapChain* _this, UINT BufferCount, UINT Width, UINT Height, DXGI_FORMAT NewFormat, UINT SwapChainFlags)
|
|
{
|
|
auto inst = DX11_Hook::Inst();
|
|
inst->_ResetRenderState();
|
|
return (_this->*inst->ResizeBuffers)(BufferCount, Width, Height, NewFormat, SwapChainFlags);
|
|
}
|
|
|
|
HRESULT STDMETHODCALLTYPE DX11_Hook::MyPresent1(IDXGISwapChain1* _this, UINT SyncInterval, UINT Flags, const DXGI_PRESENT_PARAMETERS* pPresentParameters)
|
|
{
|
|
auto inst = DX11_Hook::Inst();
|
|
inst->_PrepareForOverlay(_this);
|
|
return (_this->*inst->Present1)(SyncInterval, Flags, pPresentParameters);
|
|
}
|
|
|
|
DX11_Hook::DX11_Hook():
|
|
_Initialized(false),
|
|
_Hooked(false),
|
|
_WindowsHooked(false),
|
|
pContext(nullptr),
|
|
mainRenderTargetView(nullptr),
|
|
Present(nullptr),
|
|
ResizeBuffers(nullptr),
|
|
ResizeTarget(nullptr),
|
|
Present1(nullptr)
|
|
{
|
|
}
|
|
|
|
DX11_Hook::~DX11_Hook()
|
|
{
|
|
SPDLOG_INFO("DX11 Hook removed");
|
|
|
|
if (_WindowsHooked)
|
|
delete Windows_Hook::Inst();
|
|
|
|
if (_Initialized)
|
|
{
|
|
SafeRelease(mainRenderTargetView);
|
|
SafeRelease(pContext);
|
|
|
|
ImGui_ImplDX11_InvalidateDeviceObjects();
|
|
ImGui::DestroyContext();
|
|
|
|
_Initialized = false;
|
|
}
|
|
|
|
_inst = nullptr;
|
|
}
|
|
|
|
DX11_Hook* DX11_Hook::Inst()
|
|
{
|
|
if (_inst == nullptr)
|
|
_inst = new DX11_Hook;
|
|
|
|
return _inst;
|
|
}
|
|
|
|
std::string DX11_Hook::GetLibraryName() const
|
|
{
|
|
return LibraryName;
|
|
}
|
|
|
|
void DX11_Hook::LoadFunctions(
|
|
decltype(Present) PresentFcn,
|
|
decltype(ResizeBuffers) ResizeBuffersFcn,
|
|
decltype(ResizeTarget) ResizeTargetFcn,
|
|
decltype(Present1) Present1Fcn)
|
|
{
|
|
Present = PresentFcn;
|
|
ResizeBuffers = ResizeBuffersFcn;
|
|
ResizeTarget = ResizeTargetFcn;
|
|
Present1 = Present1Fcn;
|
|
}
|
|
|
|
std::weak_ptr<uint64_t> DX11_Hook::CreateImageResource(const void* image_data, uint32_t width, uint32_t height)
|
|
{
|
|
ID3D11ShaderResourceView** resource = new ID3D11ShaderResourceView*(nullptr);
|
|
|
|
// Create texture
|
|
D3D11_TEXTURE2D_DESC desc = {};
|
|
desc.Width = static_cast<UINT>(width);
|
|
desc.Height = static_cast<UINT>(height);
|
|
desc.MipLevels = 1;
|
|
desc.ArraySize = 1;
|
|
desc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
|
|
desc.SampleDesc.Count = 1;
|
|
desc.Usage = D3D11_USAGE_DEFAULT;
|
|
desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
|
|
desc.CPUAccessFlags = 0;
|
|
|
|
ID3D11Texture2D* pTexture = nullptr;
|
|
D3D11_SUBRESOURCE_DATA subResource;
|
|
subResource.pSysMem = image_data;
|
|
subResource.SysMemPitch = desc.Width * 4;
|
|
subResource.SysMemSlicePitch = 0;
|
|
pDevice->CreateTexture2D(&desc, &subResource, &pTexture);
|
|
|
|
if (pTexture != nullptr)
|
|
{
|
|
// Create texture view
|
|
D3D11_SHADER_RESOURCE_VIEW_DESC srvDesc{};
|
|
srvDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
|
|
srvDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2D;
|
|
srvDesc.Texture2D.MipLevels = desc.MipLevels;
|
|
srvDesc.Texture2D.MostDetailedMip = 0;
|
|
|
|
pDevice->CreateShaderResourceView(pTexture, &srvDesc, resource);
|
|
// Release Texture, the shader resource increases the reference count.
|
|
pTexture->Release();
|
|
}
|
|
|
|
if (*resource == nullptr)
|
|
return std::shared_ptr<uint64_t>();
|
|
|
|
auto ptr = std::shared_ptr<uint64_t>((uint64_t*)resource, [](uint64_t* handle)
|
|
{
|
|
if(handle != nullptr)
|
|
{
|
|
ID3D11ShaderResourceView** resource = reinterpret_cast<ID3D11ShaderResourceView**>(handle);
|
|
(*resource)->Release();
|
|
delete resource;
|
|
}
|
|
});
|
|
|
|
_ImageResources.emplace(ptr);
|
|
|
|
return ptr;
|
|
}
|
|
|
|
void DX11_Hook::ReleaseImageResource(std::weak_ptr<uint64_t> resource)
|
|
{
|
|
auto ptr = resource.lock();
|
|
if (ptr)
|
|
{
|
|
auto it = _ImageResources.find(ptr);
|
|
if (it != _ImageResources.end())
|
|
_ImageResources.erase(it);
|
|
}
|
|
} |