A set of blend modes used in drawing operations.
Defined in <SDL3/SDL_blendmode.h>
typedef Uint32 SDL_BlendMode;
#define SDL_BLENDMODE_NONE 0x00000000u /**< no blending: dstRGBA = srcRGBA */
#define SDL_BLENDMODE_BLEND 0x00000001u /**< alpha blending: dstRGB = (srcRGB * srcA) + (dstRGB * (1-srcA)), dstA = srcA + (dstA * (1-srcA)) */
#define SDL_BLENDMODE_BLEND_PREMULTIPLIED 0x00000010u /**< pre-multiplied alpha blending: dstRGBA = srcRGBA + (dstRGBA * (1-srcA)) */
#define SDL_BLENDMODE_ADD 0x00000002u /**< additive blending: dstRGB = (srcRGB * srcA) + dstRGB, dstA = dstA */
#define SDL_BLENDMODE_ADD_PREMULTIPLIED 0x00000020u /**< pre-multiplied additive blending: dstRGB = srcRGB + dstRGB, dstA = dstA */
#define SDL_BLENDMODE_MOD 0x00000004u /**< color modulate: dstRGB = srcRGB * dstRGB, dstA = dstA */
#define SDL_BLENDMODE_MUL 0x00000008u /**< color multiply: dstRGB = (srcRGB * dstRGB) + (dstRGB * (1-srcA)), dstA = dstA */
#define SDL_BLENDMODE_INVALID 0x7FFFFFFFuThese predefined blend modes are supported everywhere.
Additional values may be obtained from SDL_ComposeCustomBlendMode.
This datatype is available since SDL 3.1.3.