#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 "Direct3D11PixelShaderObserver.h"
#include "../Direct3D11RasterizerResources.h"
#include "Nuclex/Graphics/Rasterization/Usage.h"

#include <stdexcept>

namespace Nuclex { namespace Graphics { namespace Rasterization {

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

  Direct3D11PixelShaderObserver::Direct3D11PixelShaderObserver(
    Direct3D11RasterizerResources &resources, PixelShader *pixelShader
  ) :
    resources(resources),
    pixelShader(pixelShader) {

    HRESULT resultHandle = this->resources.GetDevice()->CreatePixelShader(
      this->pixelShader->AccessMemory(),
      this->pixelShader->GetProgramLengthInBytes(),
      nullptr,
      &this->direct3DPixelShader
    );
    if(FAILED(resultHandle)) {
      throw std::runtime_error("Could not create Direct3D 11 pixel shader");
    }
  }

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

  void Direct3D11PixelShaderObserver::Destroying() {
    this->resources.PixelShaderHolder.Evict(this->pixelShader, this);
    // Do not do anything below Evict(). It will delete this instance!
  }

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

  void Direct3D11PixelShaderObserver::ConstantBufferChanged(std::size_t) {
    // This implementation checks all constant buffers before rendering
    // so there is nothing to do here. Possible future optimization.
  }

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

  void Direct3D11PixelShaderObserver::TextureChanged(std::size_t) {
    // This implementation checks all texture before rendering
    // so there is nothing to do here. Possible future optimization.
  }

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

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