/*
* 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;
}
/*
* 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;
/*
* Send the PDF 1.4 create compositor action specified by the parameters.
*/
code = send_pdf14trans(pis, dev, &pdf14dev, pparams, pgs->memory);
/*
* If we created a new PDF 1.4 compositor device then we need to install it
* into the graphics state.
*/
if (code >= 0 && pdf14dev != dev)
gx_set_device_only(pgs, pdf14dev);
return code;
}
