png_write_sRGB 852 3rdparty/libpng/pngpriv.h PNG_EXTERN void png_write_sRGB PNGARG((png_structp png_ptr, png_write_sRGB 67 3rdparty/libpng/pngwrite.c png_write_sRGB(png_ptr, (int)info_ptr->srgb_intent);