BitMiracle.LibJpeg.Classic.Internal.my_1pass_cquantizer.my_1pass_cquantizer C# (CSharp) Method

        public my_1pass_cquantizer(jpeg_decompress_struct cinfo)
        {
            m_cinfo = cinfo;

            m_fserrors[0] = null; /* Flag FS workspace not allocated */
            m_odither[0] = null;    /* Also flag odither arrays not allocated */

            /* Make sure my internal arrays won't overflow */
            if (cinfo.m_out_color_components > MAX_Q_COMPS)
                cinfo.ERREXIT(J_MESSAGE_CODE.JERR_QUANT_COMPONENTS, MAX_Q_COMPS);

            /* Make sure colormap indexes can be represented by JSAMPLEs */
            if (cinfo.m_desired_number_of_colors > (JpegConstants.MAXJSAMPLE + 1))
                cinfo.ERREXIT(J_MESSAGE_CODE.JERR_QUANT_MANY_COLORS, JpegConstants.MAXJSAMPLE + 1);

            /* Create the colormap and color index table. */
            create_colormap();
            create_colorindex();

            /* Allocate Floyd-Steinberg workspace now if requested.
            * We do this now since it is FAR storage and may affect the memory
            * manager's space calculations.  If the user changes to FS dither
            * mode in a later pass, we will allocate the space then, and will
            * possibly overrun the max_memory_to_use setting.
            */
            if (cinfo.m_dither_mode == J_DITHER_MODE.JDITHER_FS)
                alloc_fs_workspace();
        }