(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)

SDL_BlendMode

An enumeration of blend modes used in drawing operations.

Header File

Defined in <SDL3/SDL_blendmode.h>

Syntax

typedef enum SDL_BlendMode
{
    SDL_BLENDMODE_NONE = 0x00000000,     /**< no blending
                                              dstRGBA = srcRGBA */
    SDL_BLENDMODE_BLEND = 0x00000001,    /**< alpha blending
                                              dstRGB = (srcRGB * srcA) + (dstRGB * (1-srcA))
                                              dstA = srcA + (dstA * (1-srcA)) */
    SDL_BLENDMODE_ADD = 0x00000002,      /**< additive blending
                                              dstRGB = (srcRGB * srcA) + dstRGB
                                              dstA = dstA */
    SDL_BLENDMODE_MOD = 0x00000004,      /**< color modulate
                                              dstRGB = srcRGB * dstRGB
                                              dstA = dstA */
    SDL_BLENDMODE_MUL = 0x00000008,      /**< color multiply
                                              dstRGB = (srcRGB * dstRGB) + (dstRGB * (1-srcA))
                                              dstA = dstA */
    SDL_BLENDMODE_INVALID = 0x7FFFFFFF

    /* Additional custom blend modes can be returned by SDL_ComposeCustomBlendMode() */

} SDL_BlendMode;

Remarks

Note that additional values may be obtained from SDL_ComposeCustomBlendMode.

Version

This enum is available since SDL 3.0.0.

See Also

• SDL_ComposeCustomBlendMode

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CategoryAPI, CategoryAPIEnum

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