/* Note that nulldevice clears the current pagedevice. */
static int
znulldevice(i_ctx_t *i_ctx_p)
{
gs_nulldevice(igs);
clear_pagedevice(istate);
return 0;
}
/* Note that nulldevice clears the current pagedevice. */
static int
znulldevice(i_ctx_t *i_ctx_p)
{
gs_nulldevice(igs);
invalidate_stack_devices(i_ctx_p);
clear_pagedevice(istate);
return 0;
}
/* Remove a device from an interperter instance */
static int /* ret 0 ok, else -ve error code */
pxl_impl_remove_device(
pl_interp_instance_t *instance /* interp instance to use */
)
{
int code = 0; /* first error status encountered */
int error;
pxl_interp_instance_t *pxli = (pxl_interp_instance_t *)instance;
/* return to original gstate */
gs_grestore_only(pxli->pgs); /* destroys gs_save stack */
/* Deselect device */
/* NB */
error = gs_nulldevice(pxli->pgs);
if (code >= 0)
code = error;
return code;
}
void
pxpcl_release(void)
{
if (global_pcs) {
if (gs_debug_c('i'))
dmprintf(global_pcs->memory,
"passthrough: releasing global pcl state\n");
pcl_grestore(global_pcs);
gs_grestore_only(global_pcs->pgs);
gs_nulldevice(global_pcs->pgs);
pcl_do_resets(global_pcs, pcl_reset_permanent);
global_pcs->end_page = pcl_end_page_top; /* pcl_end_page handling */
pxpcl_pagestatereset();
global_pcs = NULL;
global_this_pass_contiguous = false;
global_pass_first = true;
global_char_angle = 0;
global_char_shear.x = 0;
global_char_shear.y = 0;
global_char_scale.x = 1.0;
global_char_scale.y = 1.0;
global_char_bold_value = 0.0;
}
}
/* Set a device into an interperter instance */
static int /* ret 0 ok, else -ve error code */
pxl_impl_set_device(
pl_interp_instance_t *instance, /* interp instance to use */
gx_device *device /* device to set (open or closed) */
)
{
int code;
pxl_interp_instance_t *pxli = (pxl_interp_instance_t *)instance;
px_state_t *pxs = pxli->pxs;
enum {Sbegin, Ssetdevice, Sinitg, Sgsave, Serase, Sdone} stage;
stage = Sbegin;
gs_opendevice(device);
pxs->interpolate = pxl_get_interpolation(instance);
/* Set the device into the gstate */
stage = Ssetdevice;
if ((code = gs_setdevice_no_erase(pxli->pgs, device)) < 0) /* can't erase yet */
goto pisdEnd;
/* Initialize device ICC profile */
code = gsicc_init_device_profile(pxli->pgs, device);
if (code < 0)
return code;
/* Init XL graphics */
stage = Sinitg;
if ((code = px_initgraphics(pxli->pxs)) < 0)
goto pisdEnd;
/* Do inits of gstate that may be reset by setdevice */
gs_setaccuratecurves(pxli->pgs, true); /* All H-P languages want accurate curves. */
/* disable hinting at high res */
if (gs_currentdevice(pxli->pgs)->HWResolution[0] >= 300)
gs_setgridfittt(pxs->font_dir, 0);
/* gsave and grestore (among other places) assume that */
/* there are at least 2 gstates on the graphics stack. */
/* Ensure that now. */
stage = Sgsave;
if ( (code = gs_gsave(pxli->pgs)) < 0)
goto pisdEnd;
stage = Serase;
if ( (code = gs_erasepage(pxli->pgs)) < 0 )
goto pisdEnd;
stage = Sdone; /* success */
/* Unwind any errors */
pisdEnd:
switch (stage) {
case Sdone: /* don't undo success */
break;
case Serase: /* gs_erasepage failed */
/* undo gsave */
gs_grestore_only(pxli->pgs); /* destroys gs_save stack */
/* fall thru to next */
case Sgsave: /* gsave failed */
case Sinitg:
/* undo setdevice */
gs_nulldevice(pxli->pgs);
/* fall thru to next */
case Ssetdevice: /* gs_setdevice failed */
case Sbegin: /* nothing left to undo */
break;
}
return code;
}
