static int l_reserveobj(lua_State * L)
{
int n;
const char *st_s = NULL;
n = lua_gettop(L);
switch (n) {
case 0:
static_pdf->obj_count++;
pdf_last_obj = pdf_create_obj(static_pdf, obj_type_obj, static_pdf->obj_ptr + 1);
break;
case 1:
if (lua_type(L, -1) != LUA_TSTRING)
luaL_error(L, "pdf.reserveobj() optional argument must be string");
st_s = luaL_checkstring(L, 1);
if (lua_key_eq(st_s, annot)) {
pdf_last_annot = pdf_create_obj(static_pdf, obj_type_annot, 0);
} else {
luaL_error(L, "pdf.reserveobj() optional string must be \"annot\"");
}
lua_pop(L, 1);
break;
default:
luaL_error(L, "pdf.reserveobj() allows max. 1 argument");
}
lua_pushinteger(L, static_pdf->obj_ptr);
return 1;
}
static int l_reserveobj(lua_State * L)
{
int n;
const_lstring st;
st.s = 0;
n = lua_gettop(L);
switch (n) {
case 0:
static_pdf->obj_count++;
pdf_last_obj =
pdf_create_obj(static_pdf, obj_type_obj, static_pdf->obj_ptr + 1);
break;
case 1:
if (!lua_isstring(L, -1))
luaL_error(L, "pdf.reserveobj() optional argument must be string");
st.s = lua_tolstring(L, 1, &st.l);
if (st.l == 5 && strncmp((const char *) st.s, "annot", 5) == 0) {
pdf_last_annot = pdf_create_obj(static_pdf, obj_type_annot, 0);
} else {
luaL_error(L, "pdf.reserveobj() optional string must be \"annot\"");
}
lua_pop(L, 1);
break;
default:
luaL_error(L, "pdf.reserveobj() allows max. 1 argument");
}
lua_pushinteger(L, static_pdf->obj_ptr);
return 1;
}
static int orig_obj(lua_State * L)
{
int n, first_arg = 1;
int k;
const char *st_s = NULL ;
n = lua_gettop(L);
if ((n > 0) && (lua_type(L, 1) == LUA_TNUMBER)) {
first_arg++;
k = (int) lua_tointeger(L, 1);
check_obj_type(static_pdf, obj_type_obj, k);
if (is_obj_scheduled(static_pdf, k) || obj_data_ptr(static_pdf, k) != 0)
luaL_error(L, "pdf.obj() object in use");
} else {
static_pdf->obj_count++;
k = pdf_create_obj(static_pdf, obj_type_obj, static_pdf->obj_ptr + 1);
}
pdf_last_obj = k;
obj_data_ptr(static_pdf, k) = pdf_get_mem(static_pdf, pdfmem_obj_size);
init_obj_obj(static_pdf, k);
switch (n - first_arg + 1) {
case 0:
luaL_error(L, "pdf.obj() needs at least one argument");
break;
case 1:
if (!lua_isstring(L, first_arg)) /* or number */
luaL_error(L, "pdf.obj() 1st argument must be string");
break;
case 2:
case 3:
if (lua_type(L, first_arg) != LUA_TSTRING)
luaL_error(L, "pdf.obj() 1st argument must be string");
if (!lua_isstring(L, first_arg + 1)) /* or number */
luaL_error(L, "pdf.obj() 2nd argument must be string");
st_s = lua_tostring(L, first_arg);
if (lua_key_eq(st_s, file)) {
if (n == first_arg + 2)
luaL_error(L, "pdf.obj() 3rd argument forbidden in file mode");
set_obj_obj_is_file(static_pdf, k);
} else {
if (n == first_arg + 2) { /* write attr text */
if (!lua_isstring(L, -1)) /* or number */
luaL_error(L, "pdf.obj() 3rd argument must be string");
obj_obj_stream_attr(static_pdf, k) =
luaL_ref(Luas, LUA_REGISTRYINDEX);
}
if (lua_key_eq(st_s, stream)) {
set_obj_obj_is_stream(static_pdf, k);
} else if (lua_key_eq(st_s, streamfile)) {
set_obj_obj_is_stream(static_pdf, k);
set_obj_obj_is_file(static_pdf, k);
} else
luaL_error(L, "pdf.obj() invalid argument");
}
break;
default:
luaL_error(L, "pdf.obj() allows max. 3 arguments");
}
obj_obj_data(static_pdf, k) = luaL_ref(L, LUA_REGISTRYINDEX);
return k;
}
static void setup_image(PDF pdf, image * a, wrtype_e writetype)
{
image_dict *ad;
if (a == NULL)
luaL_error(Luas, "no valid image passed"); /* todo, also check in caller */
ad = img_dict(a);
check_o_mode(pdf, wrtype_s[writetype], 1 << OMODE_PDF, false);
read_scale_img(a);
if (img_objnum(ad) == 0) { /* latest needed just before out_img() */
pdf->ximage_count++;
img_objnum(ad) = pdf_create_obj(pdf, obj_type_ximage, pdf->ximage_count);
img_index(ad) = pdf->ximage_count;
idict_to_array(ad); /* from now on ad is read-only */
obj_data_ptr(pdf, pdf->obj_ptr) = img_index(ad);
}
}
static void setup_image(PDF pdf, image * a, wrtype_e writetype)
{
image_dict *ad;
assert(a != NULL);
ad = img_dict(a);
check_o_mode(pdf, wrtype_s[writetype], 1 << OMODE_PDF, false);
/* flush_str(last_tex_string); *//* ?? */
read_scale_img(a);
if (img_objnum(ad) == 0) { /* latest needed just before out_img() */
pdf->ximage_count++;
img_objnum(ad) =
pdf_create_obj(pdf, obj_type_ximage, pdf->ximage_count);
img_index(ad) = pdf->ximage_count;
idict_to_array(ad); /* now ad is read-only */
obj_data_ptr(pdf, pdf->obj_ptr) = img_index(ad);
}
}
static image_dict *read_image(char *file_name, int page_num, char *page_name, int colorspace, int page_box, char *user_password, char *owner_password, char *visible_filename)
{
image *a = new_image();
image_dict *idict = img_dict(a) = new_image_dict();
static_pdf->ximage_count++;
img_objnum(idict) = pdf_create_obj(static_pdf, obj_type_ximage, static_pdf->ximage_count);
img_index(idict) = static_pdf->ximage_count;
set_obj_data_ptr(static_pdf, img_objnum(idict), img_index(idict));
idict_to_array(idict);
img_colorspace(idict) = colorspace;
img_pagenum(idict) = page_num;
img_pagename(idict) = page_name;
img_userpassword(idict) = user_password;
img_ownerpassword(idict) = owner_password;
img_visiblefilename(idict) = visible_filename;
if (file_name == NULL) {
normal_error("pdf backend","no image filename given");
}
cur_file_name = file_name;
img_filename(idict) = file_name;
img_pagebox(idict) = page_box;
read_img(idict);
return idict;
}
static int l_immediateobj(lua_State * L)
{
int n, first_arg = 1;
int k;
lstring buf;
const_lstring st1,st2, st3;
const char *st1_s = NULL;
st1.s = st2.s = st3.s = NULL;
check_o_mode(static_pdf, "immediateobj()", 1 << OMODE_PDF, true);
if (global_shipping_mode != NOT_SHIPPING)
luaL_error(L, "pdf.immediateobj() can not be used with \\latelua");
n = lua_gettop(L);
if ((n > 0) && (lua_type(L, 1) == LUA_TNUMBER)) {
first_arg++;
k = (int) lua_tointeger(L, 1);
check_obj_type(static_pdf, obj_type_obj, k);
if (is_obj_scheduled(static_pdf, k) || obj_data_ptr(static_pdf, k) != 0)
luaL_error(L, "pdf.immediateobj() object in use");
} else {
static_pdf->obj_count++;
k = pdf_create_obj(static_pdf, obj_type_obj, static_pdf->obj_ptr + 1);
}
pdf_last_obj = k;
switch (n - first_arg + 1) {
case 0:
luaL_error(L, "pdf.immediateobj() needs at least one argument");
break;
case 1:
if (!lua_isstring(L, first_arg)) /* or number */
luaL_error(L, "pdf.immediateobj() 1st argument must be string");
pdf_begin_obj(static_pdf, k, OBJSTM_ALWAYS);
st1.s = lua_tolstring(L, first_arg, &st1.l);
pdf_out_block(static_pdf, st1.s, st1.l);
pdf_end_obj(static_pdf);
break;
case 2:
case 3:
if (lua_type(L,first_arg) != LUA_TSTRING)
luaL_error(L, "pdf.immediateobj() 1st argument must be string");
if (!lua_isstring(L, first_arg + 1)) /* or number */
luaL_error(L, "pdf.immediateobj() 2nd argument must be string");
st1_s = lua_tostring(L, first_arg);
st2.s = lua_tolstring(L, first_arg + 1, &st2.l);
if (lua_key_eq(st1_s, file)) {
if (n == first_arg + 2)
luaL_error(L, "pdf.immediateobj() 3rd argument forbidden in file mode");
pdf_begin_obj(static_pdf, k, OBJSTM_ALWAYS);
buf.s = fread_to_buf(L, st2.s, &buf.l);
pdf_out_block(static_pdf, (const char *) buf.s, buf.l);
xfree(buf.s);
pdf_end_obj(static_pdf);
} else {
pdf_begin_obj(static_pdf, k, OBJSTM_NEVER); /* not an object stream candidate! */
pdf_begin_dict(static_pdf);
if (n == first_arg + 2) { /* write attr text */
if (!lua_isstring(L, first_arg + 2)) /* or number (maybe only string as it's an attr) */
luaL_error(L, "pdf.immediateobj() 3rd argument must be string");
st3.s = lua_tolstring(L, first_arg + 2, &st3.l);
pdf_out_block(static_pdf, st3.s, st3.l);
if (st3.s[st3.l - 1] != '\n')
pdf_out(static_pdf, '\n');
}
pdf_dict_add_streaminfo(static_pdf);
pdf_end_dict(static_pdf);
pdf_begin_stream(static_pdf);
if (lua_key_eq(st1_s, stream)) {
pdf_out_block(static_pdf, st2.s, st2.l);
} else if (lua_key_eq(st1_s, streamfile)) {
buf.s = fread_to_buf(L, st2.s, &buf.l);
pdf_out_block(static_pdf, (const char *) buf.s, buf.l);
xfree(buf.s);
} else
luaL_error(L, "pdf.immediateobj() invalid argument");
pdf_end_stream(static_pdf);
pdf_end_obj(static_pdf);
}
break;
default:
luaL_error(L, "pdf.immediateobj() allows max. 3 arguments");
}
lua_pushinteger(L, k);
return 1;
}
static int table_obj(lua_State * L)
{
const char *type;
int k, obj_compression;
int compress_level = -1; /* unset */
int os_threshold = OBJSTM_ALWAYS; /* default: put non-stream objects into object streams */
int saved_compress_level = static_pdf->compress_level;
const_lstring attr, st;
lstring buf;
int immediate = 0; /* default: not immediate */
attr.s = st.s = NULL;
attr.l = 0;
assert(lua_istable(L, 1)); /* t */
lua_key_rawgeti(type);
if (lua_isnil(L, -1)) /* !vs t */
luaL_error(L, "pdf.obj(): object \"type\" missing");
if (lua_type(L,-1) != LUA_TSTRING) /* !vs t */
luaL_error(L, "pdf.obj(): object \"type\" must be string");
type = lua_tostring(L, -1);
if (! (lua_key_eq(type, raw) || lua_key_eq(type, stream))) {
luaL_error(L, "pdf.obj(): \"%s\" is not a valid object type", type); /* i vs t */
}
lua_pop(L, 1); /* t */
lua_key_rawgeti(immediate);
if (!lua_isnil(L, -1)) { /* b? t */
if (!lua_isboolean(L, -1)) /* !b t */
luaL_error(L, "pdf.obj(): \"immediate\" must be boolean");
immediate = lua_toboolean(L, -1); /* 0 or 1 */
}
lua_pop(L, 1); /* t */
/* is a reserved object referenced by "objnum"? */
lua_key_rawgeti(objnum);
if (!lua_isnil(L, -1)) { /* vi? t */
if (lua_type(L,-1) != LUA_TNUMBER) /* !vi t */
luaL_error(L, "pdf.obj(): \"objnum\" must be integer");
k = (int) lua_tointeger(L, -1); /* vi t */
check_obj_type(static_pdf, obj_type_obj, k);
if (is_obj_scheduled(static_pdf, k) || obj_data_ptr(static_pdf, k) != 0)
luaL_error(L, "pdf.obj() object in use");
} else {
static_pdf->obj_count++;
k = pdf_create_obj(static_pdf, obj_type_obj, static_pdf->obj_ptr + 1);
}
pdf_last_obj = k;
if (immediate == 0) {
obj_data_ptr(static_pdf, k) = pdf_get_mem(static_pdf, pdfmem_obj_size);
init_obj_obj(static_pdf, k);
}
lua_pop(L, 1); /* t */
/* get optional "attr" (allowed only for stream case) */
lua_key_rawgeti(attr);
if (!lua_isnil(L, -1)) { /* attr-s? t */
if (! lua_key_eq(type, stream))
luaL_error(L, "pdf.obj(): \"attr\" key not allowed for non-stream object");
if (!lua_isstring(L, -1)) /* or number */ /* !attr-s t */
luaL_error(L, "pdf.obj(): object \"attr\" must be string");
if (immediate == 1) {
attr.s = lua_tolstring(L, -1, &attr.l); /* attr-s t */
lua_pop(L, 1); /* t */
} else
obj_obj_stream_attr(static_pdf, k) = luaL_ref(Luas, LUA_REGISTRYINDEX); /* t */
} else {
lua_pop(L, 1); /* t */
}
/* get optional "compresslevel" (allowed only for stream case) */
lua_key_rawgeti(compresslevel);
if (!lua_isnil(L, -1)) { /* vi? t */
if (lua_key_eq(type, raw))
luaL_error(L, "pdf.obj(): \"compresslevel\" key not allowed for raw object");
if (lua_type(L, -1) != LUA_TNUMBER) /* !vi t */
luaL_error(L, "pdf.obj(): \"compresslevel\" must be integer");
compress_level = (int) lua_tointeger(L, -1); /* vi t */
if (compress_level > 9)
luaL_error(L, "pdf.obj(): \"compresslevel\" must be <= 9");
else if (compress_level < 0)
luaL_error(L, "pdf.obj(): \"compresslevel\" must be >= 0");
if (immediate == 0)
obj_obj_pdfcompresslevel(static_pdf, k) = compress_level;
}
lua_pop(L, 1); /* t */
/* get optional "objcompression" (allowed only for non-stream case) */
lua_key_rawgeti(objcompression);
if (!lua_isnil(L, -1)) { /* b? t */
if (lua_key_eq(type, stream))
luaL_error(L, "pdf.obj(): \"objcompression\" key not allowed for stream object");
if (!lua_isboolean(L, -1)) /* !b t */
luaL_error(L, "pdf.obj(): \"objcompression\" must be boolean");
obj_compression = lua_toboolean(L, -1); /* 0 or 1 */
/* OBJSTM_NEVER: never into object stream; OBJSTM_ALWAYS: depends then on \pdfobjcompresslevel */
if (obj_compression > 0)
os_threshold = OBJSTM_ALWAYS;
else
os_threshold = OBJSTM_NEVER;
if (immediate == 0)
obj_obj_objstm_threshold(static_pdf, k) = os_threshold;
}
lua_pop(L, 1); /* t */
/* now the object contents for all cases are handled */
lua_key_rawgeti(string);
lua_key_rawgeti_n(file,-2);
if (!lua_isnil(L, -1) && !lua_isnil(L, -2)) /* file-s? string-s? t */
luaL_error(L, "pdf.obj(): \"string\" and \"file\" must not be given together");
if (lua_isnil(L, -1) && lua_isnil(L, -2)) /* nil nil t */
luaL_error(L, "pdf.obj(): no \"string\" or \"file\" given");
if (lua_key_eq(type, raw)) {
if (immediate == 1)
pdf_begin_obj(static_pdf, k, os_threshold);
if (!lua_isnil(L, -2)) { /* file-s? string-s? t */
/* from string */
lua_pop(L, 1); /* string-s? t */
if (!lua_isstring(L, -1)) /* or number */ /* !string-s t */
luaL_error(L, "pdf.obj(): \"string\" must be string for raw object");
if (immediate == 1) {
st.s = lua_tolstring(L, -1, &st.l);
pdf_out_block(static_pdf, st.s, st.l);
} else
obj_obj_data(static_pdf, k) = luaL_ref(L, LUA_REGISTRYINDEX); /* t */
} else {
/* from file */
if (lua_type(L, -1) != LUA_TSTRING) /* !file-s nil t */
luaL_error(L, "pdf.obj(): \"file\" name must be string for raw object");
if (immediate == 1) {
st.s = lua_tolstring(L, -1, &st.l); /* file-s nil t */
buf.s = fread_to_buf(L, st.s, &buf.l);
pdf_out_block(static_pdf, (const char *) buf.s, buf.l);
/* already in pdf_end_obj:
if (buf.s[buf.l - 1] != '\n')
pdf_out(static_pdf, '\n');
*/
xfree(buf.s);
} else {
set_obj_obj_is_file(static_pdf, k);
obj_obj_data(static_pdf, k) = luaL_ref(L, LUA_REGISTRYINDEX); /* nil t */
}
}
if (immediate == 1)
pdf_end_obj(static_pdf);
} else {
if (immediate == 1) {
pdf_begin_obj(static_pdf, k, OBJSTM_NEVER); /* 0 = not an object stream candidate! */
pdf_begin_dict(static_pdf);
if (attr.s != NULL) {
pdf_out_block(static_pdf, attr.s, attr.l);
if (attr.s[attr.l - 1] != '\n')
pdf_out(static_pdf, '\n');
}
if (compress_level > -1)
static_pdf->compress_level = compress_level;
pdf_dict_add_streaminfo(static_pdf);
pdf_end_dict(static_pdf);
pdf_begin_stream(static_pdf);
} else {
set_obj_obj_is_stream(static_pdf, k);
if (compress_level > -1)
obj_obj_pdfcompresslevel(static_pdf, k) = compress_level;
}
if (!lua_isnil(L, -2)) { /* file-s? string-s? t */
/* from string */
lua_pop(L, 1); /* string-s? t */
if (!lua_isstring(L, -1)) /* or number */ /* !string-s t */
luaL_error(L, "pdf.obj(): \"string\" must be string for stream object");
if (immediate == 1) {
st.s = lua_tolstring(L, -1, &st.l); /* string-s t */
pdf_out_block(static_pdf, st.s, st.l);
} else
obj_obj_data(static_pdf, k) = luaL_ref(L, LUA_REGISTRYINDEX); /* t */
} else {
/* from file */
if (lua_type(L, -1) != LUA_TSTRING) /* !file-s nil t */
luaL_error(L, "pdf.obj(): \"file\" name must be string for stream object");
if (immediate == 1) {
st.s = lua_tolstring(L, -1, &st.l); /* file-s nil t */
buf.s = fread_to_buf(L, st.s, &buf.l);
pdf_out_block(static_pdf, (const char *) buf.s, buf.l);
xfree(buf.s);
} else {
set_obj_obj_is_file(static_pdf, k);
obj_obj_data(static_pdf, k) = luaL_ref(L, LUA_REGISTRYINDEX); /* nil t */
}
}
if (immediate == 1) {
pdf_end_stream(static_pdf);
pdf_end_obj(static_pdf);
}
}
static_pdf->compress_level = saved_compress_level;
return k;
}