#pragma region CPL License
/*
Nuclex Native Framework
Copyright (C) 2002-2013 Nuclex Development Labs

This library is free software; you can redistribute it and/or
modify it under the terms of the IBM Common Public License as
published by the IBM Corporation; either version 1.0 of the
License, or (at your option) any later version.

This library 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
IBM Common Public License for more details.

You should have received a copy of the IBM Common Public
License along with this library
*/
#pragma endregion // CPL License

// If the library is compiled as a DLL, this ensures symbols are exported
#define NUCLEX_GRAPHICS_SOURCE 1

#include "Direct3D11RasterizerSettings.h"

#include <stdexcept>

namespace Nuclex { namespace Graphics { namespace Rasterization {

  // ------------------------------------------------------------------------------------------- //

#if defined(NUCLEX_GRAPHICS_DIRECT3D11_1)

  bool Direct3D11RasterizerSettings::IsVerticalSynchronizationEnabled() const {
    const IDXGIDeviceNPtr &dxgiDevice = this->device;

    UINT latency;
    HRESULT resultHandle = dxgiDevice->GetMaximumFrameLatency(&latency);
    if(FAILED(resultHandle)) {
      throw std::runtime_error("Could not query maximum frame latency from Direct3D 11");
    }

    // If the latency is set to anything but 0, vsync is enabled
    return (latency > 0);
  }

#endif // defined(NUCLEX_GRAPHICS_DIRECT3D11_1)

  // ------------------------------------------------------------------------------------------- //

#if !defined(NUCLEX_GRAPHICS_DIRECT3D11_1)

  bool Direct3D11RasterizerSettings::IsVerticalSynchronizationEnabled() const {
    return this->isVerticalSynchronizationEnabled;
  }

#endif // !defined(NUCLEX_GRAPHICS_DIRECT3D11_1)

  // ------------------------------------------------------------------------------------------- //

#if defined(NUCLEX_GRAPHICS_DIRECT3D11_1)

  void Direct3D11RasterizerSettings::EnableVerticalSynchronization(bool wait /* = true */) {
    const IDXGIDeviceNPtr &dxgiDevice = this->device;

    // Allow 1 frame of latency if vsync is enabled
    UINT latency = wait ? 1 : 0;

    HRESULT resultHandle = dxgiDevice->SetMaximumFrameLatency(latency);
    if(FAILED(resultHandle)) {
      throw std::runtime_error("Could not set maximum frame latency in Direct3D 11");
    }
  }

#endif // defined(NUCLEX_GRAPHICS_DIRECT3D11_1)

  // ------------------------------------------------------------------------------------------- //

#if !defined(NUCLEX_GRAPHICS_DIRECT3D11_1)

  void Direct3D11RasterizerSettings::EnableVerticalSynchronization(bool wait /* = true */) {
    this->isVerticalSynchronizationEnabled = wait;
  }

#endif // !defined(NUCLEX_GRAPHICS_DIRECT3D11_1)

  // ------------------------------------------------------------------------------------------- //

  //CullMode::Enum Direct3D11RasterizerSettings::GetCullMode() const {}

  // ------------------------------------------------------------------------------------------- //

  //void Direct3D11RasterizerSettings::SetCullMode(CullMode::Enum cullMode) {}

  // ------------------------------------------------------------------------------------------- //

  std::size_t Direct3D11RasterizerSettings::CountSupportedResolutions() const {
    throw std::runtime_error("Not implemented yet");
  }

  // ------------------------------------------------------------------------------------------- //

}}} // namespace Nuclex::Graphics::Rasterization