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Partially working DX12 overlay

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DX12 hook seems ok, there are some bugs remaining.
ImGui setup for DX12 doesn't work.
This commit is contained in:
Nemirtingas 2019-08-19 18:56:15 +02:00
parent 3c83e08d34
commit 5893b69d1f
4 changed files with 164 additions and 25 deletions
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114
overlay_experimental/DX12_Hook.cpp
View file

@ -8,17 +8,82 @@
#include <imgui.h>
#include <impls/imgui_impl_dx12.h>
#include <dxgi1_4.h>
DX12_Hook* DX12_Hook::_inst = nullptr;
bool DX12_Hook::start_hook()
{
if (!_hooked)
{
//if (!Windows_Hook::Inst().start_hook())
// return false;
if (!Windows_Hook::Inst().start_hook())
return false;
PRINT_DEBUG("Hooked DirectX 12\n");
return false;
IDXGIFactory4* pDXGIFactory = nullptr;
IDXGISwapChain1* pSwapChain = nullptr;
D3D12_COMMAND_QUEUE_DESC queueDesc = {};
ID3D12CommandQueue* pCommandQueue = nullptr;
ID3D12Device* pDevice = nullptr;
decltype(D3D12CreateDevice)* D3D12CreateDevice =
(decltype(D3D12CreateDevice))GetProcAddress(GetModuleHandle(DX12_Hook::DLL_NAME), "D3D12CreateDevice");
D3D12CreateDevice(NULL, D3D_FEATURE_LEVEL_11_0, IID_PPV_ARGS(&pDevice));
if (pDevice)
{
DXGI_SWAP_CHAIN_DESC1 SwapChainDesc = {};
SwapChainDesc.Width = 0;
SwapChainDesc.Height = 0;
SwapChainDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
SwapChainDesc.Stereo = FALSE;
SwapChainDesc.SampleDesc = { 1, 0 };
SwapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
SwapChainDesc.BufferCount = 3;
SwapChainDesc.Scaling = DXGI_SCALING_STRETCH;
SwapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;
SwapChainDesc.AlphaMode = DXGI_ALPHA_MODE_UNSPECIFIED;
queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
queueDesc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
pDevice->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(&pCommandQueue));
if (pCommandQueue)
{
reinterpret_cast<decltype(CreateDXGIFactory1)*>(GetProcAddress(GetModuleHandle("dxgi.dll"), "CreateDXGIFactory1"))(IID_PPV_ARGS(&pDXGIFactory));
pDXGIFactory->CreateSwapChainForHwnd(pCommandQueue, GetForegroundWindow(), &SwapChainDesc, NULL, NULL, &pSwapChain);
if (pSwapChain != nullptr)
{
PRINT_DEBUG("Hooked DirectX 12\n");
_hooked = true;
Hook_Manager::Inst().FoundRenderer(this);
loadFunctions(pDevice, pSwapChain);
UnhookAll();
BeginHook();
HookFuncs(
std::make_pair<void**, void*>(&(PVOID&)DX12_Hook::Present, &DX12_Hook::MyPresent),
std::make_pair<void**, void*>(&(PVOID&)DX12_Hook::ResizeTarget, &DX12_Hook::MyResizeTarget),
std::make_pair<void**, void*>(&(PVOID&)DX12_Hook::ResizeBuffers, &DX12_Hook::MyResizeBuffers)
);
EndHook();
get_steam_client()->steam_overlay->HookReady();
}
else
{
PRINT_DEBUG("Failed to hook DirectX 12\n");
return false;
}
}
}
if (pSwapChain) pSwapChain->Release();
if (pDXGIFactory) pDXGIFactory->Release();
if (pCommandQueue) pCommandQueue->Release();
if (pDevice) pDevice->Release();
}
return true;
}
@ -42,7 +107,6 @@ void DX12_Hook::resetRenderState()
// Try to make this function and overlay's proc as short as possible or it might affect game's fps.
void DX12_Hook::prepareForOverlay(IDXGISwapChain* pSwapChain)
{
/*
DXGI_SWAP_CHAIN_DESC desc;
pSwapChain->GetDesc(&desc);
@ -51,8 +115,9 @@ void DX12_Hook::prepareForOverlay(IDXGISwapChain* pSwapChain)
D3D12_DESCRIPTOR_HEAP_DESC d3d12_desc = {};
ID3D12Device* pDevice;
HRESULT ret = pSwapChain->GetDevice(__uuidof(ID3D12Device), (PVOID*)&pDevice);
if (!SUCCEEDED(pSwapChain->GetDevice(IID_PPV_ARGS(&pDevice))))
return;
d3d12_desc.Type = D3D12_DESCRIPTOR_HEAP_TYPE_RTV;
d3d12_desc.NumDescriptors = 1;
d3d12_desc.Flags = D3D12_DESCRIPTOR_HEAP_FLAG_NONE;
@ -63,28 +128,40 @@ void DX12_Hook::prepareForOverlay(IDXGISwapChain* pSwapChain)
return;
}
SIZE_T rtvDescriptorSize = pDevice->GetDescriptorHandleIncrementSize(D3D12_DESCRIPTOR_HEAP_TYPE_RTV);
D3D12_CPU_DESCRIPTOR_HANDLE rtvHandle = pDescriptorHeap->GetCPUDescriptorHandleForHeapStart();
mainRenderTargetDescriptor = rtvHandle;
mainRenderTargetDescriptor = pDescriptorHeap->GetCPUDescriptorHandleForHeapStart();
pDevice->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&pCmdAlloc));
if (!SUCCEEDED(pDevice->CreateCommandAllocator(D3D12_COMMAND_LIST_TYPE_DIRECT, IID_PPV_ARGS(&pCmdAlloc))))
{
pDescriptorHeap->Release();
pDevice->Release();
return;
}
if (!SUCCEEDED(pDevice->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, pCmdAlloc, NULL, IID_PPV_ARGS(&pCmdList))))
{
return;
}
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO();
io.IniFilename = NULL;
pDevice->CreateCommandList(0, D3D12_COMMAND_LIST_TYPE_DIRECT, pCmdAlloc, NULL, IID_PPV_ARGS(&pCmdList));
Hook_Manager::Inst().ChangeGameWindow(desc.OutputWindow);
ImGui_ImplWin32_Init(desc.OutputWindow);
ImGui_ImplDX12_Init(pDevice, 1, DXGI_FORMAT_R8G8B8A8_UNORM,
pDescriptorHeap->GetCPUDescriptorHandleForHeapStart(),
pDescriptorHeap->GetGPUDescriptorHandleForHeapStart());
pCmdAlloc->Release();
pDescriptorHeap->Release();
pDevice->Release();
initialized = true;
}
ImGui_ImplDX12_NewFrame();
ImGui_ImplWin32_NewFrame();
Windows_Hook::Inst().prepareForOverlay(desc.OutputWindow);
ImGui::NewFrame();
Hook_Manager::Inst().CallOverlayProc(desc.BufferDesc.Width, desc.BufferDesc.Height);
get_steam_client()->steam_overlay->OverlayProc(desc.BufferDesc.Width, desc.BufferDesc.Height);
ImGui::EndFrame();
@ -96,7 +173,6 @@ void DX12_Hook::prepareForOverlay(IDXGISwapChain* pSwapChain)
pCmdList->OMSetRenderTargets(1, &mainRenderTargetDescriptor, FALSE, NULL);
pCmdList->SetDescriptorHeaps(1, &pDescriptorHeap);
ImGui_ImplDX12_RenderDrawData(ImGui::GetDrawData(), pCmdList);
*/
}
/////////////////////////////////////////////////////////////////////////////////////
@ -141,7 +217,7 @@ DX12_Hook::DX12_Hook():
pCmdList(nullptr),
pDescriptorHeap(nullptr)
{
_library = GetModuleHandle(DLL_NAME);
_library = LoadLibrary(DLL_NAME);
PRINT_DEBUG("Trying to hook DX12 but DX12_Hook is not implemented yet, please report to DEV with the game name.");

1
overlay_experimental/DX12_Hook.h
View file

@ -5,6 +5,7 @@
#ifndef NO_OVERLAY
#include <d3d12.h>
#include <dxgi1_4.h>
#include "DirectX_VTables.h"
class DX12_Hook : public Base_Hook

13
overlay_experimental/DirectX_VTables.h
View file

@ -29,6 +29,19 @@ enum class IDXGISwapChainVTable
GetContainingOutput,
GetFrameStatistics,
GetLastPresentCount,
// IDXGISwapChain1
GetDesc1,
GetFullscreenDesc,
GetHwnd,
GetCoreWindow,
Present1,
IsTemporaryMonoSupported,
GetRestrictToOutput,
SetBackgroundColor,
GetBackgroundColor,
SetRotation,
GetRotation,
};
enum class ID3D11DeviceVTable

61
overlay_experimental/Hook_Manager.cpp
View file

@ -52,9 +52,12 @@ HRESULT STDMETHODCALLTYPE Hook_Manager::MyIDXGISwapChain_Present(IDXGISwapChain*
else
{
_this->GetDevice(__uuidof(ID3D12Device), (void**)& pDevice);
DX12_Hook* hook = DX12_Hook::Inst();
if (hook->start_hook())
inst.AddHook(hook);
if (pDevice)
{
// DX12_Hook* hook = DX12_Hook::Inst();
// if (hook->start_hook())
// inst.AddHook(hook);
}
}
}
if (pDevice) pDevice->Release();
@ -260,9 +263,55 @@ void Hook_Manager::hook_dx12()
{
if (!_dxgi_hooked && !_renderer_found)
{
DX12_Hook* hook = DX12_Hook::Inst();
hook->start_hook(); // TODO: Prints to error log about DX12 Implementation status
delete static_cast<Base_Hook*>(hook);
IDXGIFactory4* pDXGIFactory = nullptr;
IDXGISwapChain1* pSwapChain = nullptr;
D3D12_COMMAND_QUEUE_DESC queueDesc = {};
ID3D12CommandQueue* pCommandQueue = nullptr;
ID3D12Device* pDevice = nullptr;
decltype(D3D12CreateDevice)* D3D12CreateDevice =
(decltype(D3D12CreateDevice))GetProcAddress(GetModuleHandle(DX12_Hook::DLL_NAME), "D3D12CreateDevice");
D3D12CreateDevice(NULL, D3D_FEATURE_LEVEL_11_0, IID_PPV_ARGS(&pDevice));
if (pDevice)
{
DXGI_SWAP_CHAIN_DESC1 SwapChainDesc = {};
SwapChainDesc.Width = 0;
SwapChainDesc.Height = 0;
SwapChainDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
SwapChainDesc.Stereo = FALSE;
SwapChainDesc.SampleDesc = { 1, 0 };
SwapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
SwapChainDesc.BufferCount = 3;
SwapChainDesc.Scaling = DXGI_SCALING_STRETCH;
SwapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;
SwapChainDesc.AlphaMode = DXGI_ALPHA_MODE_UNSPECIFIED;
queueDesc.Type = D3D12_COMMAND_LIST_TYPE_DIRECT;
queueDesc.Flags = D3D12_COMMAND_QUEUE_FLAG_NONE;
pDevice->CreateCommandQueue(&queueDesc, IID_PPV_ARGS(&pCommandQueue));
if (pCommandQueue)
{
reinterpret_cast<decltype(CreateDXGIFactory1)*>(GetProcAddress(GetModuleHandle("dxgi.dll"), "CreateDXGIFactory1"))(IID_PPV_ARGS(&pDXGIFactory));
pDXGIFactory->CreateSwapChainForHwnd(pCommandQueue, GetForegroundWindow(), &SwapChainDesc, NULL, NULL, &pSwapChain);
if (pSwapChain != nullptr)
{
PRINT_DEBUG("Hooked IDXGISwapChain::Present to detect DX Version\n");
(void*&)_IDXGISwapChain_Present = (*reinterpret_cast<void***>(pSwapChain))[(int)IDXGISwapChainVTable::Present];
HookDXGIPresent();
}
else
{
PRINT_DEBUG("Failed to Hook IDXGISwapChain::Present to detect DX Version\n");
}
}
}
if (pSwapChain) pSwapChain->Release();
if (pDXGIFactory) pDXGIFactory->Release();
if (pCommandQueue) pCommandQueue->Release();
if (pDevice) pDevice->Release();
}
}