Lines Matching refs:composite
1340 * If you just need to composite the PNG image onto an existing background
2568 # define png_composite(composite, fg, alpha, bg) \
2573 (composite) = (png_byte)((temp + (temp >> 8)) >> 8); }
2575 # define png_composite_16(composite, fg, alpha, bg) \
2580 (composite) = (png_uint_16)((temp + (temp >> 16)) >> 16); }
2584 # define png_composite(composite, fg, alpha, bg) \
2585 (composite) = (png_byte)(((png_uint_16)(fg) * (png_uint_16)(alpha) + \
2589 # define png_composite_16(composite, fg, alpha, bg) \
2590 (composite) = (png_uint_16)(((png_uint_32)(fg) * (png_uint_32)(alpha) + \
