mlib_ImageBlendRGBA2ARGB - image blending and channel reordering
cc [ flag... ] file... –lmlib [ library... ] #include <mlib.h> mlib_status mlib_ImageBlendRGBA2ARGB(mlib_image *dst, const mlib_image *src);
The mlib_ImageBlendRGBA2ARGB() function blends the source image of the RGBA format into the destination image of the ARGB format.
The image type must be MLIB_BYTE. The source and destination images must contain four channels.
It uses the following equation:
Cd = Cs*As + Cd*(1 - As) Ad = Ad
where, Cs and Cd are the RGB color components of the source and destination images, respectively. As and Ad are the alpha components of the source and destination images, respectively.
The function takes the following arguments:
Pointer to destination image.
Pointer to source image.
The function returns MLIB_SUCCESS if successful. Otherwise it returns MLIB_FAILURE.
See attributes(5) for descriptions of the following attributes:
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mlib_ImageBlendRGBA2BGRA(3MLIB), mlib_ImageBlend_OMSA_SA_Inp(3MLIB), attributes(5)