BlendMode.h

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#pragma once
 
 
#include <optional>
 
#include "tiny_skia/Color.h"
 
namespace tiny_skia {
 
enum class BlendMode {
  // Porter-Duff modes.
  Clear,           
  Source,          
  Destination,     
  SourceOver,      
  DestinationOver, 
  SourceIn,        
  DestinationIn,   
  SourceOut,       
  DestinationOut,  
  SourceAtop,      
  DestinationAtop, 
  Xor,             
  Plus,            
  Modulate,        
  // Advanced blend modes.
  Screen,          
  Overlay,         
  Darken,          
  Lighten,         
  ColorDodge,      
  ColorBurn,       
  HardLight,       
  SoftLight,       
  Difference,      
  Exclusion,       
  Multiply,        
  Hue,             
  Saturation,      
  Color,           
  Luminosity,      
};
 
[[nodiscard]] bool shouldPreScaleCoverage(BlendMode blendMode);
[[nodiscard]] std::optional<pipeline::Stage> toStage(BlendMode blendMode);
 
}  // namespace tiny_skia