#include "dxgi_factory.h"
#include "dxgi_include.h"

namespace dxvk {
  
  Logger Logger::s_instance("dxgi.log");
  
  HRESULT createDxgiFactory(UINT Flags, REFIID riid, void **ppFactory) {
    try {
      Com<DxgiFactory> factory = new DxgiFactory(Flags);
      HRESULT hr = factory->QueryInterface(riid, ppFactory);

      if (FAILED(hr))
        return hr;
      
      return S_OK;
    } catch (const DxvkError& e) {
      Logger::err(e.message());
      return E_FAIL;
    }
  }
}

extern "C" {
  DLLEXPORT HRESULT __stdcall CreateDXGIFactory2(UINT Flags, REFIID riid, void **ppFactory) {
    dxvk::Logger::warn("CreateDXGIFactory2: Ignoring flags");
    return dxvk::createDxgiFactory(Flags, riid, ppFactory);
  }

  DLLEXPORT HRESULT __stdcall CreateDXGIFactory1(REFIID riid, void **ppFactory) {
    return dxvk::createDxgiFactory(0, riid, ppFactory);
  }
  
  DLLEXPORT HRESULT __stdcall CreateDXGIFactory(REFIID riid, void **ppFactory) {
    return dxvk::createDxgiFactory(0, riid, ppFactory);
  }

  DLLEXPORT HRESULT __stdcall DXGIDeclareAdapterRemovalSupport() {
    static bool enabled = false;

    if (std::exchange(enabled, true))
      return DXGI_ERROR_ALREADY_EXISTS;

    dxvk::Logger::warn("DXGIDeclareAdapterRemovalSupport: Stub");
    return S_OK;
  }

  DLLEXPORT HRESULT __stdcall DXGIGetDebugInterface1(UINT Flags, REFIID riid, void **ppDebug) {
    static bool errorShown = false;

    if (!std::exchange(errorShown, true))
      dxvk::Logger::warn("DXGIGetDebugInterface1: Stub");

    return E_NOINTERFACE;
  }

}