/* 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);
}
}
/* Install a DeviceN color space. */
static int
gx_install_DeviceN(gs_color_space * pcs, gs_state * pgs)
{
int code;
code = check_DeviceN_component_names(pcs, pgs);
if (code < 0)
return code;
/* See if we have an ICC profile that we can associate with
this DeviceN color space */
if (pgs->icc_manager->device_n != NULL) {
/* An nclr profile is in the manager. Grab one that matches. */
cmm_profile_t *profdata = gsicc_finddevicen(pcs, pgs->icc_manager);
if (profdata != NULL)
rc_increment(profdata);
if (pcs->cmm_icc_profile_data != NULL)
rc_decrement(pcs->cmm_icc_profile_data, "gx_install_DeviceN");
pcs->cmm_icc_profile_data = profdata;
}
/* {csrc} was pgs->color_space->params.device_n.use_alt_cspace */
((gs_color_space *)pcs)->params.device_n.use_alt_cspace =
using_alt_color_space(pgs);
if (pcs->params.device_n.use_alt_cspace && pcs->cmm_icc_profile_data == NULL ) {
/* No nclr ICC profile */
code = (pcs->base_space->type->install_cspace)
(pcs->base_space, pgs);
} else if (pcs->params.device_n.use_alt_cspace) {
gs_color_space *nclr_pcs;
/* Need to install the nclr cspace */
code = gs_cspace_build_ICC(&nclr_pcs, NULL, pgs->memory);
nclr_pcs->cmm_icc_profile_data = pcs->cmm_icc_profile_data;
rc_increment(pcs->cmm_icc_profile_data);
rc_increment_cs(nclr_pcs); /* Suspicious - RJW */
rc_decrement_cs(pcs->base_space, "gx_install_DeviceN");
pcs->base_space = nclr_pcs;
}
/*
* Give the device an opportunity to capture equivalent colors for any
* spot colors which might be present in the color space.
*/
if (code >= 0) {
if (dev_proc(pgs->device, update_spot_equivalent_colors))
code = dev_proc(pgs->device, update_spot_equivalent_colors)
(pgs->device, pgs);
}
return code;
}
/* Install a DeviceN color space. */
static int
gx_install_DeviceN(gs_color_space * pcs, gs_state * pgs)
{
int code;
#if ENABLE_CUSTOM_COLOR_CALLBACK
/*
* Check if we want to use the callback color processing for this
* color space.
*/
bool use_custom_color_callback =
custom_color_callback_install_DeviceN(pcs, pgs);
if (use_custom_color_callback) {
/*
* We are using the callback instead of the alternate tint transform
* for this color space.
*/
pgs->color_component_map.use_alt_cspace =
pgs->color_space->params.device_n.use_alt_cspace = false;
pgs->color_component_map.cspace_id = pcs->id;
return 0;
}
#endif
code = check_DeviceN_component_names(pcs, pgs);
if (code < 0)
return code;
/* {csrc} was pgs->color_space->params.device_n.use_alt_cspace */
((gs_color_space *)pcs)->params.device_n.use_alt_cspace =
using_alt_color_space(pgs);
if (pcs->params.device_n.use_alt_cspace)
code = (pcs->base_space->type->install_cspace)
(pcs->base_space, pgs);
/*
* Give the device an opportunity to capture equivalent colors for any
* spot colors which might be present in the color space.
*/
if (code >= 0)
code = dev_proc(pgs->device, update_spot_equivalent_colors)
(pgs->device, pgs);
return code;
}
