png_set_alpha_mode_fixed 1232 3rdparty/libpng/png.h PNG_FIXED_EXPORT(228, void, png_set_alpha_mode_fixed, (png_structp png_ptr,
png_set_alpha_mode_fixed  355 3rdparty/libpng/pngrtran.c    png_set_alpha_mode_fixed(png_ptr, mode, convert_gamma_value(png_ptr,