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Implement min and max blend modes #191

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Merged
ChrisThrasher merged 1 commit into from
Jul 3, 2023
Merged

Implement min and max blend modes #191

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10 changes: 7 additions & 3 deletions include/SFML/Graphics/BlendMode.h
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Original file line number Diff line number Diff line change
Expand Up @@ -56,9 +56,11 @@ typedef enum
////////////////////////////////////////////////////////////
typedef enum
{
sfBlendEquationAdd, ///< Pixel = Src * SrcFactor + Dst * DstFactor
sfBlendEquationSubtract, ///< Pixel = Src * SrcFactor - Dst * DstFactor
sfBlendEquationReverseSubtract ///< Pixel = Dst * DstFactor - Src * SrcFactor
sfBlendEquationAdd, ///< Pixel = Src * SrcFactor + Dst * DstFactor
sfBlendEquationSubtract, ///< Pixel = Src * SrcFactor - Dst * DstFactor
sfBlendEquationReverseSubtract, ///< Pixel = Dst * DstFactor - Src * SrcFactor
sfBlendEquationMin, ///< Pixel = min(Dst, Src)
sfBlendEquationMax ///< Pixel = max(Dst, Src)
} sfBlendEquation;


Expand All @@ -80,6 +82,8 @@ typedef struct
CSFML_GRAPHICS_API const sfBlendMode sfBlendAlpha; ///< Blend source and dest according to dest alpha
CSFML_GRAPHICS_API const sfBlendMode sfBlendAdd; ///< Add source to dest
CSFML_GRAPHICS_API const sfBlendMode sfBlendMultiply; ///< Multiply source and dest
CSFML_GRAPHICS_API const sfBlendMode sfBlendMin; ///< Take minimum between source and dest
CSFML_GRAPHICS_API const sfBlendMode sfBlendMax; ///< Take maximum between source and dest
CSFML_GRAPHICS_API const sfBlendMode sfBlendNone; ///< Overwrite dest with source


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10 changes: 9 additions & 1 deletion src/SFML/Graphics/BlendMode.cpp
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Expand Up @@ -40,6 +40,14 @@ const sfBlendMode sfBlendAdd = { sfBlendFactorSrcAlpha, sfBlendFactorOne, sfBlen
const sfBlendMode sfBlendMultiply = { sfBlendFactorDstColor, sfBlendFactorZero, sfBlendEquationAdd,
sfBlendFactorDstColor, sfBlendFactorZero, sfBlendEquationAdd };

////////////////////////////////////////////////////////////
const sfBlendMode sfBlendMin = { sfBlendFactorOne, sfBlendFactorOne, sfBlendEquationMin,
sfBlendFactorOne, sfBlendFactorOne, sfBlendEquationMin };

////////////////////////////////////////////////////////////
const sfBlendMode sfBlendMax = { sfBlendFactorOne, sfBlendFactorOne, sfBlendEquationMax,
sfBlendFactorOne, sfBlendFactorOne, sfBlendEquationMax };

////////////////////////////////////////////////////////////
const sfBlendMode sfBlendNone = { sfBlendFactorOne, sfBlendFactorZero, sfBlendEquationAdd,
sfBlendFactorOne, sfBlendFactorZero, sfBlendEquationAdd };
sfBlendFactorOne, sfBlendFactorZero, sfBlendEquationAdd };