gMod/source/uMod_IDirect3D9.cpp

#include "Main.h"

#ifndef PRE_MESSAGE
#define PRE_MESSAGE "uMod_IDirect3D9"
#endif

uMod_IDirect3D9::uMod_IDirect3D9(IDirect3D9* pOriginal)
{
    Message(PRE_MESSAGE "::" PRE_MESSAGE " (%p): %p\n", pOriginal, this);
    m_pIDirect3D9 = pOriginal;
}

uMod_IDirect3D9::~uMod_IDirect3D9()
{
    Message(PRE_MESSAGE "::~" PRE_MESSAGE "(): %p\n", this);
}

HRESULT __stdcall uMod_IDirect3D9::QueryInterface(REFIID riid, void** ppvObj)
{
    *ppvObj = nullptr;

    // call this to increase AddRef at original object
    // and to check if such an interface is there

    const HRESULT hRes = m_pIDirect3D9->QueryInterface(riid, ppvObj);

    if (hRes == NOERROR) // if OK, send our "fake" address
    {
        *ppvObj = this;
    }

    return hRes;
}

ULONG __stdcall uMod_IDirect3D9::AddRef()
{
    return m_pIDirect3D9->AddRef();
}

ULONG __stdcall uMod_IDirect3D9::Release()
{
    // call original routine
    const ULONG count = m_pIDirect3D9->Release();

    // in case no further Ref is there, the Original Object has deleted itself
    if (count == 0) {
        delete this;
    }

    return count;
}

HRESULT __stdcall uMod_IDirect3D9::RegisterSoftwareDevice(void* pInitializeFunction)
{
    return m_pIDirect3D9->RegisterSoftwareDevice(pInitializeFunction);
}

UINT __stdcall uMod_IDirect3D9::GetAdapterCount()
{
    return m_pIDirect3D9->GetAdapterCount();
}

HRESULT __stdcall uMod_IDirect3D9::GetAdapterIdentifier(UINT Adapter, DWORD Flags, D3DADAPTER_IDENTIFIER9* pIdentifier)
{
    return m_pIDirect3D9->GetAdapterIdentifier(Adapter, Flags, pIdentifier);
}

UINT __stdcall uMod_IDirect3D9::GetAdapterModeCount(UINT Adapter, D3DFORMAT Format)
{
    return m_pIDirect3D9->GetAdapterModeCount(Adapter, Format);
}

HRESULT __stdcall uMod_IDirect3D9::EnumAdapterModes(UINT Adapter, D3DFORMAT Format, UINT Mode, D3DDISPLAYMODE* pMode)
{
    return m_pIDirect3D9->EnumAdapterModes(Adapter, Format, Mode, pMode);
}

HRESULT __stdcall uMod_IDirect3D9::GetAdapterDisplayMode(UINT Adapter, D3DDISPLAYMODE* pMode)
{
    return m_pIDirect3D9->GetAdapterDisplayMode(Adapter, pMode);
}

HRESULT __stdcall uMod_IDirect3D9::CheckDeviceType(UINT iAdapter, D3DDEVTYPE DevType, D3DFORMAT DisplayFormat, D3DFORMAT BackBufferFormat, BOOL bWindowed)
{
    return m_pIDirect3D9->CheckDeviceType(iAdapter, DevType, DisplayFormat, BackBufferFormat, bWindowed);
}

HRESULT __stdcall uMod_IDirect3D9::CheckDeviceFormat(UINT Adapter, D3DDEVTYPE DeviceType, D3DFORMAT AdapterFormat, DWORD Usage, D3DRESOURCETYPE RType, D3DFORMAT CheckFormat)
{
    return m_pIDirect3D9->CheckDeviceFormat(Adapter, DeviceType, AdapterFormat, Usage, RType, CheckFormat);
}

HRESULT __stdcall uMod_IDirect3D9::CheckDeviceMultiSampleType(UINT Adapter, D3DDEVTYPE DeviceType, D3DFORMAT SurfaceFormat, BOOL Windowed, D3DMULTISAMPLE_TYPE MultiSampleType, DWORD* pQualityLevels)
{
    return m_pIDirect3D9->CheckDeviceMultiSampleType(Adapter, DeviceType, SurfaceFormat, Windowed, MultiSampleType, pQualityLevels);
}

HRESULT __stdcall uMod_IDirect3D9::CheckDepthStencilMatch(UINT Adapter, D3DDEVTYPE DeviceType, D3DFORMAT AdapterFormat, D3DFORMAT RenderTargetFormat, D3DFORMAT DepthStencilFormat)
{
    return m_pIDirect3D9->CheckDepthStencilMatch(Adapter, DeviceType, AdapterFormat, RenderTargetFormat, DepthStencilFormat);
}

HRESULT __stdcall uMod_IDirect3D9::CheckDeviceFormatConversion(UINT Adapter, D3DDEVTYPE DeviceType, D3DFORMAT SourceFormat, D3DFORMAT TargetFormat)
{
    return m_pIDirect3D9->CheckDeviceFormatConversion(Adapter, DeviceType, SourceFormat, TargetFormat);
}

HRESULT __stdcall uMod_IDirect3D9::GetDeviceCaps(UINT Adapter, D3DDEVTYPE DeviceType, D3DCAPS9* pCaps)
{
    return m_pIDirect3D9->GetDeviceCaps(Adapter, DeviceType, pCaps);
}

HMONITOR __stdcall uMod_IDirect3D9::GetAdapterMonitor(UINT Adapter)
{
    return m_pIDirect3D9->GetAdapterMonitor(Adapter);
}

HRESULT __stdcall uMod_IDirect3D9::CreateDevice(UINT Adapter, D3DDEVTYPE DeviceType, HWND hFocusWindow, DWORD BehaviorFlags, D3DPRESENT_PARAMETERS* pPresentationParameters, IDirect3DDevice9** ppReturnedDeviceInterface)
{
    Message(PRE_MESSAGE "::CreateDevice(): %p\n", this);
    // we intercept this call and provide our own "fake" Device Object
    const HRESULT hres = m_pIDirect3D9->CreateDevice(Adapter, DeviceType, hFocusWindow, BehaviorFlags, pPresentationParameters, ppReturnedDeviceInterface);

    int count = 1;
    if (pPresentationParameters != nullptr) {
        count = pPresentationParameters->BackBufferCount;
    }
    const auto pIDirect3DDevice9 = new uMod_IDirect3DDevice9(*ppReturnedDeviceInterface, count);

    // store our pointer (the fake one) for returning it to the calling program
    *ppReturnedDeviceInterface = pIDirect3DDevice9;

    return hres;
}