/* setcolorspace */
int
gs_setcolorspace(gs_state * pgs, const gs_color_space * pcs)
{
int code = 0;
gs_color_space cs_old = *pgs->color_space;
gs_client_color cc_old = *pgs->ccolor;
if (pgs->in_cachedevice)
return_error(gs_error_undefined);
if (pcs->id != pgs->color_space->id) {
pcs->type->adjust_cspace_count(pcs, 1);
*pgs->color_space = *pcs;
if ( (code = pcs->type->install_cspace(pcs, pgs)) < 0 ||
(pgs->overprint && (code = gs_do_set_overprint(pgs)) < 0) ) {
*pgs->color_space = cs_old;
pcs->type->adjust_cspace_count(pcs, -1);
} else
cs_old.type->adjust_cspace_count(&cs_old, -1);
}
if (code >= 0) {
cs_full_init_color(pgs->ccolor, pcs);
cs_old.type->adjust_color_count(&cc_old, &cs_old, -1);
gx_unset_dev_color(pgs);
}
return code;
}
/*
* Push a PDF 1.4 transparency compositor onto the current device. Note that
* if the current device already is a PDF 1.4 transparency compositor, the
* create_compositor will update its parameters but not create a new
* compositor device.
*/
static int
gs_state_update_pdf14trans(gs_state * pgs, gs_pdf14trans_params_t * pparams)
{
gs_imager_state * pis = (gs_imager_state *)pgs;
gx_device * dev = pgs->device;
gx_device *pdf14dev = NULL;
int code;
int curr_num = dev->color_info.num_components;
/*
* Send the PDF 1.4 create compositor action specified by the parameters.
*/
code = send_pdf14trans(pis, dev, &pdf14dev, pparams, pgs->memory);
if (code < 0)
return code;
/*
* If we created a new PDF 1.4 compositor device then we need to install it
* into the graphics state.
*/
if (pdf14dev != dev) {
gx_set_device_only(pgs, pdf14dev);
}
/* If we had a color space change and we are in overprint, then we need to
update the drawn_comps */
if (pgs->overprint && curr_num != pdf14dev->color_info.num_components) {
code = gs_do_set_overprint(pgs);
}
return code;
}
/* ---------------- General colors and color spaces ---------------- */
int
gs_setcolorspace_only(gs_state * pgs, gs_color_space * pcs)
{
int code = 0;
gs_color_space *cs_old = pgs->color[0].color_space;
gs_client_color cc_old = *pgs->color[0].ccolor;
if (pgs->in_cachedevice)
return_error(gs_error_undefined);
if (pcs->id != cs_old->id) {
rc_increment_cs(pcs);
pgs->color[0].color_space = pcs;
if ( (code = pcs->type->install_cspace(pcs, pgs)) < 0 ||
(pgs->overprint && (code = gs_do_set_overprint(pgs)) < 0) ) {
pgs->color[0].color_space = cs_old;
rc_decrement_only_cs(pcs, "gs_setcolorspace");
} else {
cs_old->type->adjust_color_count(&cc_old, cs_old, -1);
rc_decrement_only_cs(cs_old, "gs_setcolorspace");
}
}
return(code);
}
