static void
pdf_flush_font (pdf_font *font)
{
char *fontname, *uniqueTag;
if (!font) {
return;
}
if (font->resource && font->reference) {
if (font->subtype != PDF_FONT_FONTTYPE_TYPE3) {
if (pdf_font_get_flag(font, PDF_FONT_FLAG_NOEMBED)) {
texpdf_add_dict(font->resource,
texpdf_new_name("BaseFont"), texpdf_new_name(font->fontname));
if (font->descriptor) {
texpdf_add_dict(font->descriptor,
texpdf_new_name("FontName"), texpdf_new_name(font->fontname));
}
} else {
if (!font->fontname) {
ERROR("Undefined in fontname... (%s)", font->ident);
}
fontname = NEW(7+strlen(font->fontname)+1, char);
uniqueTag = pdf_font_get_uniqueTag(font);
sprintf(fontname, "%6s+%s", uniqueTag, font->fontname);
texpdf_add_dict(font->resource,
texpdf_new_name("BaseFont"), texpdf_new_name(fontname));
if (font->descriptor) {
texpdf_add_dict(font->descriptor,
texpdf_new_name("FontName"), texpdf_new_name(fontname));
}
RELEASE(fontname);
}
if (font->descriptor) {
texpdf_add_dict(font->resource,
texpdf_new_name("FontDescriptor"), texpdf_ref_obj(font->descriptor));
}
}
}
if (font->resource)
texpdf_release_obj(font->resource);
if (font->descriptor)
texpdf_release_obj(font->descriptor);
if (font->reference)
texpdf_release_obj(font->reference);
font->reference = NULL;
font->resource = NULL;
font->descriptor = NULL;
return;
}
static pdf_obj *
JPEG_get_iccp (struct JPEG_info *j_info)
{
pdf_obj *icc_stream;
struct JPEG_APPn_ICC *icc;
int i, prev_id = 0, num_icc_seg = -1;
icc_stream = texpdf_new_stream(STREAM_COMPRESS);
for (i = 0; i < j_info->num_appn; i++) {
if (j_info->appn[i].marker != JM_APP2 ||
j_info->appn[i].app_sig != JS_APPn_ICC)
continue;
icc = (struct JPEG_APPn_ICC *) j_info->appn[i].app_data;
if (num_icc_seg < 0 && prev_id == 0) {
num_icc_seg = icc->num_chunks;
/* ICC chunks are sorted? */
} else if (icc->seq_id != prev_id + 1 ||
num_icc_seg != icc->num_chunks || icc->seq_id > icc->num_chunks) {
WARN("Invalid JPEG ICC chunk: %d (p:%d, n:%d)", icc->seq_id, prev_id, icc->num_chunks);
texpdf_release_obj(icc_stream);
icc_stream = NULL;
break;
}
texpdf_add_stream(icc_stream, icc->chunk, icc->length);
prev_id = icc->seq_id;
num_icc_seg = icc->num_chunks;
}
return icc_stream;
}
int pdf_end_annotation(lua_State *L) {
const char* dictionary = luaL_checkstring(L, 1);
pdf_rect rect;
pdf_obj* dict;
rect.llx = luaL_checknumber(L, 2);
rect.lly = luaL_checknumber(L, 3);
rect.urx = luaL_checknumber(L, 4);
rect.ury = luaL_checknumber(L, 5);
dict = texpdf_parse_pdf_dict(&dictionary, dictionary + strlen(dictionary), NULL);
if (!dict) {
luaL_error(L, "Unparsable annotation dictionary");
return 0;
}
texpdf_doc_add_annot(p, texpdf_doc_current_page_number(p), &rect, dict, 1);
texpdf_release_obj(dict);
return 0;
}
int pdf_release(lua_State *L) {
pdf_obj* o1 = lua_touserdata(L, 1);
texpdf_release_obj(o1);
return 0;
}
int
jpeg_include_image (pdf_ximage *ximage, FILE *fp)
{
pdf_obj *stream;
pdf_obj *stream_dict;
pdf_obj *colorspace;
int colortype;
ximage_info info;
struct JPEG_info j_info;
if (!texpdf_check_for_jpeg(fp)) {
WARN("%s: Not a JPEG file?", JPEG_DEBUG_STR);
rewind(fp);
return -1;
}
/* File position is 2 here... */
texpdf_ximage_init_image_info(&info);
JPEG_info_init(&j_info);
if (JPEG_scan_file(&j_info, fp) < 0) {
WARN("%s: Not a JPEG file?", JPEG_DEBUG_STR);
JPEG_info_clear(&j_info);
return -1;
}
switch (j_info.num_components) {
case 1:
colortype = PDF_COLORSPACE_TYPE_GRAY;
break;
case 3:
colortype = PDF_COLORSPACE_TYPE_RGB;
break;
case 4:
colortype = PDF_COLORSPACE_TYPE_CMYK;
break;
default:
WARN("%s: Unknown color space (num components: %d)", JPEG_DEBUG_STR, info.num_components);
JPEG_info_clear(&j_info);
return -1;
}
/* JPEG image use DCTDecode. */
stream = texpdf_new_stream (0);
stream_dict = texpdf_stream_dict(stream);
texpdf_add_dict(stream_dict,
texpdf_new_name("Filter"), texpdf_new_name("DCTDecode"));
/* XMP Metadata */
if (texpdf_get_version() >= 4) {
if (j_info.flags & HAVE_APPn_XMP) {
pdf_obj *XMP_stream;
XMP_stream = JPEG_get_XMP(&j_info);
texpdf_add_dict(stream_dict,
texpdf_new_name("Metadata"), texpdf_ref_obj(XMP_stream));
texpdf_release_obj(XMP_stream);
}
}
/* Check embedded ICC Profile */
colorspace = NULL;
if (j_info.flags & HAVE_APPn_ICC) {
pdf_obj *icc_stream, *intent;
int cspc_id;
icc_stream = JPEG_get_iccp(&j_info);
if (!icc_stream)
colorspace = NULL;
else {
if (iccp_check_colorspace(colortype,
pdf_stream_dataptr(icc_stream), pdf_stream_length (icc_stream)) < 0)
colorspace = NULL;
else {
cspc_id = iccp_load_profile(NULL, /* noname */
pdf_stream_dataptr(icc_stream),
pdf_stream_length (icc_stream));
if (cspc_id < 0)
colorspace = NULL;
else {
colorspace = texpdf_get_colorspace_reference(cspc_id);
intent = iccp_get_rendering_intent(pdf_stream_dataptr(icc_stream),
pdf_stream_length (icc_stream));
if (intent)
texpdf_add_dict(stream_dict, texpdf_new_name("Intent"), intent);
}
}
texpdf_release_obj(icc_stream);
}
}
/* No ICC or invalid ICC profile. */
if (!colorspace) {
switch (colortype) {
case PDF_COLORSPACE_TYPE_GRAY:
colorspace = texpdf_new_name("DeviceGray");
break;
case PDF_COLORSPACE_TYPE_RGB:
colorspace = texpdf_new_name("DeviceRGB");
break;
case PDF_COLORSPACE_TYPE_CMYK:
colorspace = texpdf_new_name("DeviceCMYK");
break;
}
}
texpdf_add_dict(stream_dict, texpdf_new_name("ColorSpace"), colorspace);
#define IS_ADOBE_CMYK(j) (((j).flags & HAVE_APPn_ADOBE) && (j).num_components == 4)
if (IS_ADOBE_CMYK(j_info)) {
pdf_obj *decode;
int i;
WARN("Adobe CMYK JPEG: Inverted color assumed.");
decode = texpdf_new_array();
for (i = 0; i < j_info.num_components; i++) {
texpdf_add_array(decode, texpdf_new_number(1.0));
texpdf_add_array(decode, texpdf_new_number(0.0));
}
texpdf_add_dict(stream_dict, texpdf_new_name("Decode"), decode);
}
/* Copy file */
JPEG_copy_stream(&j_info, stream, fp);
info.width = j_info.width;
info.height = j_info.height;
info.bits_per_component = j_info.bits_per_component;
info.num_components = j_info.num_components;
jpeg_get_density(&j_info, &info.xdensity, &info.ydensity);
texpdf_ximage_set_image(ximage, &info, stream);
JPEG_info_clear(&j_info);
return 0;
}
