/* 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, ¶ms);
}
}
/* 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, ¶ms);
}
}
/* DevicePixel disables overprint */
static int
gx_set_overprint_DevicePixel(const gs_color_space * pcs, gs_state * pgs)
{
gs_overprint_params_t params;
params.retain_any_comps = false;
pgs->effective_overprint_mode = 0;
return gs_state_update_overprint(pgs, ¶ms);
}
/* 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, ¶ms);
}
}