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dxgi_hooks.cpp
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124 lines (93 loc) · 3.7 KB
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/******************************************************************************
* The MIT License (MIT)
*
* Copyright (c) 2014 Crytek
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
******************************************************************************/
#include "driver/dxgi/dxgi_wrapped.h"
#include "hooks.h"
#define DLL_NAME "dxgi.dll"
typedef HRESULT (WINAPI* PFN_CREATE_DXGI_FACTORY)( __in REFIID, __out void **ppFactory);
class DXGIHook : LibraryHook
{
public:
DXGIHook() { LibraryHooks::GetInstance().RegisterHook(DLL_NAME, this); m_EnabledHooks = true; }
bool CreateHooks(const char *libName)
{
bool success = true;
// require d3d11.dll hooked as well for proper operation
if(GetModuleHandleA("d3d11.dll") == NULL) return false;
success &= CreateDXGIFactory.Initialize("CreateDXGIFactory", DLL_NAME, CreateDXGIFactory_hook);
success &= CreateDXGIFactory1.Initialize("CreateDXGIFactory1", DLL_NAME, CreateDXGIFactory1_hook);
if(!success) return false;
m_HasHooks = true;
m_EnabledHooks = true;
return true;
}
void EnableHooks(const char *libName, bool enable)
{
m_EnabledHooks = enable;
}
bool UseHooks()
{
return (dxgihooks.m_HasHooks && dxgihooks.m_EnabledHooks);
}
static HRESULT CreateWrappedFactory1(REFIID riid, void **ppFactory)
{
if(dxgihooks.m_HasHooks)
return dxgihooks.CreateDXGIFactory1_hook(riid, ppFactory);
PFN_CREATE_DXGI_FACTORY createFunc = (PFN_CREATE_DXGI_FACTORY)GetProcAddress(GetModuleHandleA("dxgi.dll"), "CreateDXGIFactory1");
if(!createFunc)
{
RDCERR("Trying to create hooked dxgi factory without dxgi loaded");
return E_INVALIDARG;
}
HRESULT ret = createFunc(riid, ppFactory);
if(SUCCEEDED(ret))
RefCountDXGIObject::HandleWrap(riid, ppFactory);
return ret;
}
private:
static DXGIHook dxgihooks;
bool m_HasHooks;
bool m_EnabledHooks;
Hook<PFN_CREATE_DXGI_FACTORY> CreateDXGIFactory;
Hook<PFN_CREATE_DXGI_FACTORY> CreateDXGIFactory1;
static HRESULT WINAPI CreateDXGIFactory_hook(__in REFIID riid, __out void **ppFactory)
{
HRESULT ret = dxgihooks.CreateDXGIFactory()(riid, ppFactory);
if(SUCCEEDED(ret) && dxgihooks.m_EnabledHooks)
RefCountDXGIObject::HandleWrap(riid, ppFactory);
return ret;
}
static HRESULT WINAPI CreateDXGIFactory1_hook(__in REFIID riid, __out void **ppFactory)
{
HRESULT ret = dxgihooks.CreateDXGIFactory1()(riid, ppFactory);
if(SUCCEEDED(ret) && dxgihooks.m_EnabledHooks)
RefCountDXGIObject::HandleWrap(riid, ppFactory);
return ret;
}
};
DXGIHook DXGIHook::dxgihooks;
extern "C" __declspec(dllexport)
HRESULT __cdecl RENDERDOC_CreateWrappedDXGIFactory1(__in REFIID riid, __out void **ppFactory)
{
return DXGIHook::CreateWrappedFactory1(riid, ppFactory);
}