/* Returns exec_cont - a function, which must be called by caller after this function. */
static int
type1exec_bbox(i_ctx_t *i_ctx_p, gs_text_enum_t *penum, gs_type1exec_state * pcxs,
gs_font * pfont, op_proc_t *exec_cont)
{
os_ptr op = osp;
gs_type1_state *const pcis = &pcxs->cis;
gs_font_base *const pbfont = (gs_font_base *) pfont;
op_proc_t cont = (pbfont->PaintType == 0 && penum->orig_font->PaintType == 0
? bbox_finish_fill : bbox_finish_stroke);
ref *pcdevproc;
/*
* We appear to have a valid bounding box. If we don't have Metrics for
* this character, start interpreting the CharString; do the
* setcachedevice as soon as we know the (side bearing and) width.
*/
if ((pcxs->present == metricsNone && !pcxs->use_FontBBox_as_Metrics2) ||
(penum->orig_font->WMode && zchar_get_CDevProc(pbfont, &pcdevproc))) {
/* Get the width from the CharString,
* then set the cache device. */
/* We pass here when WMode==1 and the font has CDevProc,
* because we do need sbw as CDevProc's argument.
* A more natural way would be not setting pcxs->use_FontBBox_as_Metrics2
* when the font has CDevProc, except for missing sbw in the glyph.
* We prefer to pass here because we've got examples
* of Tyoe 1 fonts with empty glyphs, i.e. with no sbw,
* so we don't want to assume that they'll never appear in a CID font.
* In that case penum->FontBBox_as_Metrics2 will go here to zchar_set_cache. */
ref cnref;
ref other_subr;
int code;
/* Since an OtherSubr callout might change osp, */
/* save the character name now. */
ref_assign(&cnref, op - 1);
code = type1_continue_dispatch(i_ctx_p, pcxs, op, &other_subr, 4);
op = osp; /* OtherSubrs might change it */
switch (code) {
default: /* code < 0 or done, error */
return ((code < 0 ? code :
gs_note_error(e_invalidfont)));
case type1_result_callothersubr: /* unknown OtherSubr */
return type1_call_OtherSubr(i_ctx_p, pcxs,
bbox_getsbw_continue,
&other_subr);
case type1_result_sbw: /* [h]sbw, done */
break;
}
type1_cis_get_metrics(pcis, pcxs->sbw);
return zchar_set_cache(i_ctx_p, pbfont, &cnref,
NULL, pcxs->sbw + 2,
&pcxs->char_bbox,
cont, exec_cont, NULL);
} else {
/* We have the width and bounding box: */
/* set up the cache device now. */
return zchar_set_cache(i_ctx_p, pbfont, op - 1,
(pcxs->present == metricsSideBearingAndWidth
&& !pcxs->use_FontBBox_as_Metrics2 ?
pcxs->sbw : NULL),
pcxs->sbw + 2,
&pcxs->char_bbox,
cont, exec_cont,
(pcxs->use_FontBBox_as_Metrics2 ? pcxs->sbw : NULL));
}
}
/*
* Consult Metrics2 and CDevProc, and call setcachedevice[2]. Return
* o_push_estack if we had to call a CDevProc, or if we are skipping the
* rendering process (only getting the metrics).
* Returns exec_cont - a function, which must be called by caller after this function.
*/
int
zchar_set_cache(i_ctx_t *i_ctx_p, const gs_font_base * pbfont,
const ref * pcnref, const double psb[2],
const double pwidth[2], const gs_rect * pbbox,
op_proc_t cont, op_proc_t *exec_cont,
const double Metrics2_sbw_default[4])
{
os_ptr op = osp;
ref *pcdevproc, *valueref;
int have_cdevproc;
ref rpop;
ref cid, *cidptr;
bool metrics2;
bool metrics2_use_default = false;
double w2[10];
gs_text_enum_t *penum = op_show_find(i_ctx_p);
w2[0] = pwidth[0], w2[1] = pwidth[1];
/* Adjust the bounding box for stroking if needed. */
w2[2] = pbbox->p.x, w2[3] = pbbox->p.y;
w2[4] = pbbox->q.x, w2[5] = pbbox->q.y;
if (pbfont->PaintType != 0) {
double expand = max(1.415, gs_currentmiterlimit(igs)) *
gs_currentlinewidth(igs) / 2;
w2[2] -= expand, w2[3] -= expand;
w2[4] += expand, w2[5] += expand;
}
/* Check for Metrics2. */
{
int code = zchar_get_metrics2(pbfont, pcnref, w2 + 6);
if (code < 0)
return code;
metrics2 = code > 0;
}
/*
* For FontType 9 and 11, if Metrics2 is missing, the caller provides
* default Metrics2 values derived from the FontBBox.
*/
if (!metrics2 && Metrics2_sbw_default != NULL) {
w2[6] = Metrics2_sbw_default[2];
w2[7] = Metrics2_sbw_default[3];
w2[8] = Metrics2_sbw_default[0];
w2[9] = Metrics2_sbw_default[1];
metrics2 = true;
metrics2_use_default = true;
}
/* Check for CDevProc or "short-circuiting". */
have_cdevproc = zchar_get_CDevProc(pbfont, &pcdevproc);
/* Obscure test. The CDevProc is supposed to be called with the original CID but what we get passed
* here is the TT GID. So the CDevProc won't do the right thing. We need to extract the CID from the
* enumerator, and use that instead.
*/
cidptr = (ref *)pcnref;
if (pbfont->FontType == ft_CID_TrueType && dict_find_string(&pfont_data(gs_font_parent(pbfont))->dict, "File", &valueref) > 0) {
if (pbfont->key_name.size != pbfont->font_name.size ||
strncmp((const char *)pbfont->key_name.chars, (const char *)pbfont->font_name.chars, pbfont->key_name.size)) {
if (penum->returned.current_glyph >= GS_MIN_CID_GLYPH) {
make_int(&cid, penum->returned.current_glyph - GS_MIN_CID_GLYPH);
}
else {
make_int(&cid, penum->returned.current_glyph);
}
cidptr = &cid;
}
}
if (have_cdevproc || zchar_show_width_only(penum)) {
int i;
op_proc_t zsetc;
int nparams;
if (have_cdevproc) {
check_proc_only(*pcdevproc);
zsetc = zsetcachedevice2;
/* If we have cdevproc and the font type is CID type 0,
we'll throw away Metrics2_sbw_default that is calculated
from FontBBox. */
if (!metrics2
|| (penum->current_font->FontType == ft_CID_encrypted
&& metrics2_use_default)) {
w2[6] = w2[0], w2[7] = w2[1];
w2[8] = w2[9] = 0;
}
nparams = 10;
} else {
make_oper(&rpop, 0, zpop);
pcdevproc = &rpop;
if (metrics2)
zsetc = zsetcachedevice2, nparams = 10;
else
zsetc = zsetcachedevice, nparams = 6;
}
check_estack(3);
/* Push the l.s.b. for .type1addpath if necessary. */
if (psb != 0) {
push(nparams + 3);
make_real(op - (nparams + 2), psb[0]);
make_real(op - (nparams + 1), psb[1]);
} else {
push(nparams + 1);
}
for (i = 0; i < nparams; ++i)
make_real(op - nparams + i, w2[i]);
ref_assign(op, cidptr);
push_op_estack(cont);
push_op_estack(zsetc);
++esp;
ref_assign(esp, pcdevproc);
return o_push_estack;
} {
int code =
(metrics2 ? gs_text_setcachedevice2(penum, w2) :
gs_text_setcachedevice(penum, w2));
if (code < 0)
return code;
}
/* No metrics modification, do the stroke or fill now. */
/* Push the l.s.b. for .type1addpath if necessary. */
if (psb != 0) {
push(2);
make_real(op - 1, psb[0]);
make_real(op, psb[1]);
}
*exec_cont = cont;
return 0;
}
/*
* Consult Metrics2 and CDevProc, and call setcachedevice[2]. Return
* o_push_estack if we had to call a CDevProc, or if we are skipping the
* rendering process (only getting the metrics).
* Returns exec_cont - a function, which must be called by caller after this function.
*/
int
zchar_set_cache(i_ctx_t *i_ctx_p, const gs_font_base * pbfont,
const ref * pcnref, const double psb[2],
const double pwidth[2], const gs_rect * pbbox,
op_proc_t cont, op_proc_t *exec_cont,
const double Metrics2_sbw_default[4])
{
os_ptr op = osp;
ref *pcdevproc;
int have_cdevproc;
ref rpop;
bool metrics2;
bool metrics2_use_default = false;
double w2[10];
gs_text_enum_t *penum = op_show_find(i_ctx_p);
w2[0] = pwidth[0], w2[1] = pwidth[1];
/* Adjust the bounding box for stroking if needed. */
w2[2] = pbbox->p.x, w2[3] = pbbox->p.y;
w2[4] = pbbox->q.x, w2[5] = pbbox->q.y;
if (pbfont->PaintType != 0) {
double expand = max(1.415, gs_currentmiterlimit(igs)) *
gs_currentlinewidth(igs) / 2;
w2[2] -= expand, w2[3] -= expand;
w2[4] += expand, w2[5] += expand;
}
/* Check for Metrics2. */
{
int code = zchar_get_metrics2(pbfont, pcnref, w2 + 6);
if (code < 0)
return code;
metrics2 = code > 0;
}
/*
* For FontType 9 and 11, if Metrics2 is missing, the caller provides
* default Metrics2 values derived from the FontBBox.
*/
if (!metrics2 && Metrics2_sbw_default != NULL) {
w2[6] = Metrics2_sbw_default[2];
w2[7] = Metrics2_sbw_default[3];
w2[8] = Metrics2_sbw_default[0];
w2[9] = Metrics2_sbw_default[1];
metrics2 = true;
metrics2_use_default = true;
}
/* Check for CDevProc or "short-circuiting". */
have_cdevproc = zchar_get_CDevProc(pbfont, &pcdevproc);
if (have_cdevproc || zchar_show_width_only(penum)) {
int i;
op_proc_t zsetc;
int nparams;
if (have_cdevproc) {
check_proc_only(*pcdevproc);
zsetc = zsetcachedevice2;
/* If we have cdevproc and the font type is CID type 0,
we'll throw away Metrics2_sbw_default that is calculated
from FontBBox. */
if (!metrics2
|| (penum->current_font->FontType == ft_CID_encrypted
&& metrics2_use_default)) {
w2[6] = w2[0], w2[7] = w2[1];
w2[8] = w2[9] = 0;
}
nparams = 10;
} else {
make_oper(&rpop, 0, zpop);
pcdevproc = &rpop;
if (metrics2)
zsetc = zsetcachedevice2, nparams = 10;
else
zsetc = zsetcachedevice, nparams = 6;
}
check_estack(3);
/* Push the l.s.b. for .type1addpath if necessary. */
if (psb != 0) {
push(nparams + 3);
make_real(op - (nparams + 2), psb[0]);
make_real(op - (nparams + 1), psb[1]);
} else {
push(nparams + 1);
}
for (i = 0; i < nparams; ++i)
make_real(op - nparams + i, w2[i]);
ref_assign(op, pcnref);
push_op_estack(cont);
push_op_estack(zsetc);
++esp;
ref_assign(esp, pcdevproc);
return o_push_estack;
} {
int code =
(metrics2 ? gs_text_setcachedevice2(penum, w2) :
gs_text_setcachedevice(penum, w2));
if (code < 0)
return code;
}
/* No metrics modification, do the stroke or fill now. */
/* Push the l.s.b. for .type1addpath if necessary. */
if (psb != 0) {
push(2);
make_real(op - 1, psb[0]);
make_real(op, psb[1]);
}
*exec_cont = cont;
return 0;
}
