/* Install a fully constructed screen in the gstate. */
int
gs_screen_install(gs_screen_enum * penum)
{
gx_device_halftone dev_ht;
int code;
dev_ht.rc.memory = penum->halftone.rc.memory;
dev_ht.order = penum->order;
dev_ht.components = 0;
if ((code = gx_ht_install(penum->pgs, &penum->halftone, &dev_ht)) < 0)
gx_device_halftone_release(&dev_ht, dev_ht.rc.memory);
return code;
}
/* Install the halftone after sampling. */
static int
sethalftone_finish(i_ctx_t *i_ctx_p)
{
gx_device_halftone *pdht = r_ptr(esp, gx_device_halftone);
int code;
if (pdht->components)
pdht->order = pdht->components[0].corder;
code = gx_ht_install(igs, r_ptr(esp - 1, gs_halftone), pdht);
if (code < 0)
return code;
istate->halftone = esp[-2];
esp -= 4;
sethalftone_cleanup(i_ctx_p);
return o_pop_estack;
}
/* Install the color screen after sampling. */
static int
setcolorscreen_finish(i_ctx_t *i_ctx_p)
{
gx_device_halftone *pdht = r_ptr(esp, gx_device_halftone);
int code;
pdht->order = pdht->components[0].corder;
code = gx_ht_install(igs, r_ptr(esp - 1, gs_halftone), pdht);
if (code < 0)
return code;
memcpy(&istate->screen_procs.red, esp - 5, sizeof(ref) * 4);
make_null(&istate->halftone);
esp -= 7;
setcolorscreen_cleanup(i_ctx_p);
return o_pop_estack;
}
/* Install the color screen after sampling. */
static int
setcolorscreen_finish(i_ctx_t *i_ctx_p)
{
gx_device_halftone *pdht = r_ptr(esp, gx_device_halftone);
int code;
pdht->order = pdht->components[0].corder;
code = gx_ht_install(igs, r_ptr(esp - 1, gs_halftone), pdht);
if (code < 0)
return code;
istate->screen_procs.red = esp[-5];
istate->screen_procs.green = esp[-4];
istate->screen_procs.blue = esp[-3];
istate->screen_procs.gray = esp[-2];
make_null(&istate->halftone);
esp -= 7;
setcolorscreen_cleanup(i_ctx_p);
return o_pop_estack;
}
