BlendState.h

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#pragma once
 
namespace Cogs
{
  struct BlendState
  {
    enum struct Blend : uint8_t
    {
      Zero = 0,
      One,
      SourceColor,
      InverseSourceColor,
      SourceAlpha,
      InverseSourceAlpha,
      DestinationAlpha,
      InverseDestinationAlpha,
      DestinationColor,
      InverseDestinationColor,
      SourceAlphaSaturate,
      BlendFactor,
      InverseBlendFactor,
      Count
    };
 
    enum struct BlendOperation : uint8_t {
      Add = 0,
      Subtract,
      ReverseSubtract,
      Min,
      Max,
      Count
    };
 
    uint8_t enabled = 0;
 
    Blend sourceBlend = Blend::One;
 
    Blend destinationBlend = Blend::Zero;
 
    BlendOperation operation = BlendOperation::Add;
 
    static BlendState DefaultState()
    {
      BlendState blendState = {
        0,
        Blend::One,  Blend::Zero, BlendOperation::Add,
      };
      return blendState;
    }
  };
}