C++ (Cpp) gx_spot_colors_set_overprint Examples

Example #1

File: gscsepr.c Project: SynEmira/ruby-ghostscript

/* Set the overprint information appropriate to a separation color space */
static int
gx_set_overprint_Separation(const gs_color_space * pcs, gs_state * pgs)
{
    gs_devicen_color_map *  pcmap = &pgs->color_component_map;

    if (pcmap->use_alt_cspace)
        return gx_spot_colors_set_overprint( pcs->base_space, pgs );
    else {
        gs_overprint_params_t   params;

        params.retain_any_comps = pgs->overprint &&
                                  pcs->params.separation.sep_type != SEP_ALL;
        if (params.retain_any_comps) {
            params.retain_spot_comps = false;
            params.drawn_comps = 0;
            if (pcs->params.separation.sep_type != SEP_NONE) {
                int     mcomp = pcmap->color_map[0];

                if (mcomp >= 0)
                    gs_overprint_set_drawn_comp( params.drawn_comps, mcomp);
            }
        }

        pgs->effective_overprint_mode = 0;
        return gs_state_update_overprint(pgs, &params);
    }
}

Example #2

File: gscdevn.c Project: sicsiksix/aaa_website

/* Set overprint information for a DeviceN color space */
static int
gx_set_overprint_DeviceN(const gs_color_space * pcs, gs_state * pgs)
{
    gs_devicen_color_map *  pcmap = &pgs->color_component_map;

    if (pcmap->use_alt_cspace) {
        const gs_color_space_type* base_type = pcs->base_space->type;

        /* If the base space is DeviceCMYK, handle overprint as DeviceCMYK */
        if ( base_type->index == gs_color_space_index_DeviceCMYK )
                return base_type->set_overprint( pcs->base_space, pgs );
        else
                return gx_spot_colors_set_overprint( pcs->base_space, pgs);
    }
    else {
        gs_overprint_params_t   params;

        if ((params.retain_any_comps = pgs->overprint)) {
            int     i, ncomps = pcs->params.device_n.num_components;

            params.retain_spot_comps = false;
            params.drawn_comps = 0;
            for (i = 0; i < ncomps; i++) {
                int     mcomp = pcmap->color_map[i];

                if (mcomp >= 0)
                    gs_overprint_set_drawn_comp( params.drawn_comps, mcomp);
            }
        }

        pgs->effective_overprint_mode = 0;
        return gs_state_update_overprint(pgs, &params);
    }
}

Example #3

File: gscdevn.c Project: computersforpeace/ghostpdl

/* Set overprint information for a DeviceN color space */
static int
gx_set_overprint_DeviceN(const gs_color_space * pcs, gs_state * pgs)
{
    gs_devicen_color_map *  pcmap = &pgs->color_component_map;
    int code;
    gx_device *dev = pgs->device;
    cmm_dev_profile_t *dev_profile;
    
    dev_proc(dev, get_profile)(dev, &(dev_profile));
    /* It is possible that the color map information in the graphic state
       is not current due to save/restore and or if we are coming from 
       a color space that is inside a PatternType 2 */
    code = check_DeviceN_component_names(pcs, pgs);
    if (code < 0)
       return code;
    if (pcmap->use_alt_cspace) {
        const gs_color_space_type* base_type = pcs->base_space->type;

        if (dev_profile->sim_overprint &&
            dev->color_info.polarity == GX_CINFO_POLARITY_SUBTRACTIVE &&
            !gx_device_must_halftone(dev))
            return gx_simulated_set_overprint(pcs->base_space, pgs);
        else {
            /* If the base space is DeviceCMYK, handle overprint as DeviceCMYK */
            if ( base_type->index == gs_color_space_index_DeviceCMYK )
                return base_type->set_overprint( pcs->base_space, pgs );
            else
                return gx_spot_colors_set_overprint( pcs->base_space, pgs);
        }
    }
    else {
        gs_overprint_params_t   params;

        if ((params.retain_any_comps = pgs->overprint)) {
            int     i, ncomps = pcs->params.device_n.num_components;

            params.retain_spot_comps = false;
            params.drawn_comps = 0;
            params.k_value = 0;
            /* We should not have to blend if we don't need the alternate tint transform */
            params.blendspot = false;
            for (i = 0; i < ncomps; i++) {
                int     mcomp = pcmap->color_map[i];

                if (mcomp >= 0)
                    gs_overprint_set_drawn_comp( params.drawn_comps, mcomp);
            }
        }

        pgs->effective_overprint_mode = 0;
        return gs_state_update_overprint(pgs, &params);
    }
}

Example #4

File: gsicc.c Project: DecisiveMocha/ghostpdl

/* Overprint.  Here we may have either spot colors or CMYK colors. */
static int
gx_set_overprint_ICC(const gs_color_space * pcs, gs_gstate * pgs)
{
    gx_device *dev = pgs->device;
    gx_device_color_info *pcinfo = (dev == 0 ? 0 : &dev->color_info);

    /* check if we require special handling */
    if ( !pgs->overprint                      ||
         pgs->overprint_mode != 1             ||
         pcinfo == 0                          ||
         pcs->cmm_icc_profile_data->data_cs != gsCMYK ||
         pcinfo->opmode == GX_CINFO_OPMODE_NOT  ) {
            return gx_spot_colors_set_overprint(pcs, pgs);
    }

    if (pcinfo->opmode == GX_CINFO_OPMODE_RGB ||
        pcinfo->opmode == GC_CINFO_OPMODE_RGB_SET) {
        return gx_set_overprint_rgb(pcs, pgs);
    } else {
        return gx_set_overprint_cmyk(pcs, pgs);
    }
}