Lines Matching refs:fg
2902 /* fg and bg should be in `gamma 1.0' space; alpha is the opacity */
2904 # define png_composite(composite, fg, alpha, bg) \
2905 { png_uint_16 temp = (png_uint_16)((png_uint_16)(fg) * (png_uint_16)(alpha) \
2910 # define png_composite_16(composite, fg, alpha, bg) \
2911 { png_uint_32 temp = (png_uint_32)((png_uint_32)(fg) * (png_uint_32)(alpha) \
2918 # define png_composite(composite, fg, alpha, bg) \
2919 (composite) = (png_byte)(((png_uint_16)(fg) * (png_uint_16)(alpha) + \
2923 # define png_composite_16(composite, fg, alpha, bg) \
2924 (composite) = (png_uint_16)(((png_uint_32)(fg) * (png_uint_32)(alpha) + \
