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Copy pathhpdf_font_cid.c
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1030 lines (812 loc) · 30.6 KB
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/*
* << Haru Free PDF Library 2.0.3 >> -- hpdf_font_cid.c
*
* Copyright (c) 1999-2006 Takeshi Kanno <takeshi_kanno@est.hi-ho.ne.jp>
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation.
* It is provided "as is" without express or implied warranty.
*
* 2006.08.04 modified MeasureText().
*/
#include "hpdf_conf.h"
#include "hpdf_utils.h"
#include "hpdf_font.h"
static HPDF_Font
CIDFontType0_New (HPDF_Font parent,
HPDF_Xref xref);
static HPDF_Font
CIDFontType2_New (HPDF_Font parent,
HPDF_Xref xref);
static HPDF_TextWidth
TextWidth (HPDF_Font font,
const HPDF_BYTE *text,
HPDF_UINT len);
static HPDF_UINT
MeasureText (HPDF_Font font,
const HPDF_BYTE *text,
HPDF_UINT len,
HPDF_REAL width,
HPDF_REAL font_size,
HPDF_REAL char_space,
HPDF_REAL word_space,
HPDF_BOOL wordwrap,
HPDF_REAL *real_width);
static char*
UINT16ToHex (char *s,
HPDF_UINT16 val,
char *eptr);
static HPDF_Dict
CreateCMap (HPDF_Encoder encoder,
HPDF_Xref xref);
static void
OnFree_Func (HPDF_Dict obj);
static HPDF_STATUS
CIDFontType2_BeforeWrite_Func (HPDF_Dict obj);
/*--------------------------------------------------------------------------*/
HPDF_Font
HPDF_Type0Font_New (HPDF_MMgr mmgr,
HPDF_FontDef fontdef,
HPDF_Encoder encoder,
HPDF_Xref xref)
{
HPDF_Dict font;
HPDF_FontAttr attr;
HPDF_CMapEncoderAttr encoder_attr;
HPDF_STATUS ret = 0;
HPDF_Array descendant_fonts;
HPDF_PTRACE ((" HPDF_Type0Font_New\n"));
font = HPDF_Dict_New (mmgr);
if (!font)
return NULL;
font->header.obj_class |= HPDF_OSUBCLASS_FONT;
/* check whether the fontdef object and the encoder object is valid. */
if (encoder->type != HPDF_ENCODER_TYPE_DOUBLE_BYTE) {
HPDF_SetError(font->error, HPDF_INVALID_ENCODER_TYPE, 0);
return NULL;
}
if (fontdef->type != HPDF_FONTDEF_TYPE_CID &&
fontdef->type != HPDF_FONTDEF_TYPE_TRUETYPE) {
HPDF_SetError(font->error, HPDF_INVALID_FONTDEF_TYPE, 0);
return NULL;
}
attr = HPDF_GetMem (mmgr, sizeof(HPDF_FontAttr_Rec));
if (!attr) {
HPDF_Dict_Free (font);
return NULL;
}
font->header.obj_class |= HPDF_OSUBCLASS_FONT;
font->write_fn = NULL;
font->free_fn = OnFree_Func;
font->attr = attr;
encoder_attr = (HPDF_CMapEncoderAttr)encoder->attr;
HPDF_MemSet (attr, 0, sizeof(HPDF_FontAttr_Rec));
attr->writing_mode = encoder_attr->writing_mode;
attr->text_width_fn = TextWidth;
attr->measure_text_fn = MeasureText;
attr->fontdef = fontdef;
attr->encoder = encoder;
attr->xref = xref;
if (HPDF_Xref_Add (xref, font) != HPDF_OK)
return NULL;
ret += HPDF_Dict_AddName (font, "Type", "Font");
ret += HPDF_Dict_AddName (font, "BaseFont", fontdef->base_font);
ret += HPDF_Dict_AddName (font, "Subtype", "Type0");
if (fontdef->type == HPDF_FONTDEF_TYPE_CID) {
ret += HPDF_Dict_AddName (font, "Encoding", encoder->name);
} else {
attr->cmap_stream = CreateCMap (encoder, xref);
if (attr->cmap_stream) {
ret += HPDF_Dict_Add (font, "Encoding", attr->cmap_stream);
} else
return NULL;
}
if (ret != HPDF_OK)
return NULL;
descendant_fonts = HPDF_Array_New (mmgr);
if (!descendant_fonts)
return NULL;
if (HPDF_Dict_Add (font, "DescendantFonts", descendant_fonts) != HPDF_OK)
return NULL;
if (fontdef->type == HPDF_FONTDEF_TYPE_CID) {
attr->descendant_font = CIDFontType0_New (font, xref);
attr->type = HPDF_FONT_TYPE0_CID;
} else {
attr->descendant_font = CIDFontType2_New (font, xref);
attr->type = HPDF_FONT_TYPE0_TT;
}
if (!attr->descendant_font)
return NULL;
else
if (HPDF_Array_Add (descendant_fonts, attr->descendant_font) !=
HPDF_OK)
return NULL;
return font;
}
static void
OnFree_Func (HPDF_Dict obj)
{
HPDF_FontAttr attr = (HPDF_FontAttr)obj->attr;
HPDF_PTRACE ((" HPDF_Type0Font_OnFree\n"));
if (attr)
HPDF_FreeMem (obj->mmgr, attr);
}
static HPDF_Font
CIDFontType0_New (HPDF_Font parent, HPDF_Xref xref)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_FontAttr attr = (HPDF_FontAttr)parent->attr;
HPDF_FontDef fontdef = attr->fontdef;
HPDF_CIDFontDefAttr fontdef_attr = (HPDF_CIDFontDefAttr)fontdef->attr;
HPDF_Encoder encoder = attr->encoder;
HPDF_CMapEncoderAttr encoder_attr =
(HPDF_CMapEncoderAttr)encoder->attr;
HPDF_UINT16 save_cid = 0;
HPDF_Font font;
HPDF_Array array;
HPDF_Array sub_array = NULL;
HPDF_UINT i;
HPDF_Dict descriptor;
HPDF_Dict cid_system_info;
HPDF_PTRACE ((" HPDF_CIDFontType0_New\n"));
font = HPDF_Dict_New (parent->mmgr);
if (!font)
return NULL;
if (HPDF_Xref_Add (xref, font) != HPDF_OK)
return NULL;
ret += HPDF_Dict_AddName (font, "Type", "Font");
ret += HPDF_Dict_AddName (font, "Subtype", "CIDFontType0");
ret += HPDF_Dict_AddNumber (font, "DW", fontdef_attr->DW);
ret += HPDF_Dict_AddName (font, "BaseFont", fontdef->base_font);
if (ret != HPDF_OK)
return NULL;
/* add 'DW2' element */
array = HPDF_Array_New (parent->mmgr);
if (!array)
return NULL;
if (HPDF_Dict_Add (font, "DW2", array) != HPDF_OK)
return NULL;
ret += HPDF_Array_AddNumber (array, fontdef_attr->DW2[0]);
ret += HPDF_Array_AddNumber (array, fontdef_attr->DW2[1]);
if (ret != HPDF_OK)
return NULL;
/* add 'W' element */
array = HPDF_Array_New (parent->mmgr);
if (!array)
return NULL;
if (HPDF_Dict_Add (font, "W", array) != HPDF_OK)
return NULL;
/* Create W array. */
for (i = 0; i< fontdef_attr->widths->count; i++) {
HPDF_CID_Width *w =
(HPDF_CID_Width *)HPDF_List_ItemAt (fontdef_attr->widths, i);
if (w->cid != save_cid + 1 || !sub_array) {
sub_array = HPDF_Array_New (parent->mmgr);
if (!sub_array)
return NULL;
ret += HPDF_Array_AddNumber (array, w->cid);
ret += HPDF_Array_Add (array, sub_array);
}
ret += HPDF_Array_AddNumber (sub_array, w->width);
save_cid = w->cid;
if (ret != HPDF_OK)
return NULL;
}
/* create descriptor */
descriptor = HPDF_Dict_New (parent->mmgr);
if (!descriptor)
return NULL;
if (HPDF_Xref_Add (xref, descriptor) != HPDF_OK)
return NULL;
if (HPDF_Dict_Add (font, "FontDescriptor", descriptor) != HPDF_OK)
return NULL;
ret += HPDF_Dict_AddName (descriptor, "Type", "FontDescriptor");
ret += HPDF_Dict_AddName (descriptor, "FontName", fontdef->base_font);
ret += HPDF_Dict_AddNumber (descriptor, "Ascent", fontdef->ascent);
ret += HPDF_Dict_AddNumber (descriptor, "Descent", fontdef->descent);
ret += HPDF_Dict_AddNumber (descriptor, "CapHeight",
fontdef->cap_height);
ret += HPDF_Dict_AddNumber (descriptor, "MissingWidth",
fontdef->missing_width);
ret += HPDF_Dict_AddNumber (descriptor, "Flags", fontdef->flags);
if (ret != HPDF_OK)
return NULL;
array = HPDF_Box_Array_New (parent->mmgr, fontdef->font_bbox);
if (!array)
return NULL;
ret += HPDF_Dict_Add (descriptor, "FontBBox", array);
ret += HPDF_Dict_AddNumber (descriptor, "ItalicAngle",
fontdef->italic_angle);
ret += HPDF_Dict_AddNumber (descriptor, "StemV", fontdef->stemv);
if (ret != HPDF_OK)
return NULL;
/* create CIDSystemInfo dictionary */
cid_system_info = HPDF_Dict_New (parent->mmgr);
if (!cid_system_info)
return NULL;
if (HPDF_Dict_Add (font, "CIDSystemInfo", cid_system_info) != HPDF_OK)
return NULL;
ret += HPDF_Dict_Add (cid_system_info, "Registry",
HPDF_String_New (parent->mmgr, encoder_attr->registry, NULL));
ret += HPDF_Dict_Add (cid_system_info, "Ordering",
HPDF_String_New (parent->mmgr, encoder_attr->ordering, NULL));
ret += HPDF_Dict_AddNumber (cid_system_info, "Supplement",
encoder_attr->suppliment);
if (ret != HPDF_OK)
return NULL;
return font;
}
static HPDF_Font
CIDFontType2_New (HPDF_Font parent, HPDF_Xref xref)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_FontAttr attr = (HPDF_FontAttr)parent->attr;
HPDF_FontDef fontdef = attr->fontdef;
HPDF_TTFontDefAttr fontdef_attr = (HPDF_TTFontDefAttr)fontdef->attr;
HPDF_Encoder encoder = attr->encoder;
HPDF_CMapEncoderAttr encoder_attr =
(HPDF_CMapEncoderAttr)encoder->attr;
HPDF_Font font;
HPDF_Array array;
HPDF_UINT i;
HPDF_UNICODE tmp_map[65536];
HPDF_Dict cid_system_info;
HPDF_UINT16 max = 0;
HPDF_PTRACE ((" HPDF_CIDFontType2_New\n"));
font = HPDF_Dict_New (parent->mmgr);
if (!font)
return NULL;
if (HPDF_Xref_Add (xref, font) != HPDF_OK)
return NULL;
parent->before_write_fn = CIDFontType2_BeforeWrite_Func;
ret += HPDF_Dict_AddName (font, "Type", "Font");
ret += HPDF_Dict_AddName (font, "Subtype", "CIDFontType2");
ret += HPDF_Dict_AddNumber (font, "DW", fontdef->missing_width);
if (ret != HPDF_OK)
return NULL;
/* add 'DW2' element */
array = HPDF_Array_New (font->mmgr);
if (!array)
return NULL;
if (HPDF_Dict_Add (font, "DW2", array) != HPDF_OK)
return NULL;
ret += HPDF_Array_AddNumber (array, fontdef->font_bbox.bottom);
ret += HPDF_Array_AddNumber (array, fontdef->font_bbox.bottom -
fontdef->font_bbox.top);
HPDF_MemSet (tmp_map, 0, sizeof(HPDF_UNICODE) * 65536);
if (ret != HPDF_OK)
return NULL;
for (i = 0; i < 256; i++) {
HPDF_UINT j;
for (j = 0; j < 256; j++) {
HPDF_UINT16 cid = encoder_attr->cid_map[i][j];
if (cid != 0) {
HPDF_UNICODE unicode = encoder_attr->unicode_map[i][j];
HPDF_UINT16 gid = HPDF_TTFontDef_GetGlyphid (fontdef, unicode);
tmp_map[cid] = gid;
if (max < cid)
max = cid;
}
}
}
if (max > 0) {
HPDF_INT16 dw = fontdef->missing_width;
HPDF_UNICODE *ptmp_map = tmp_map;
HPDF_Array tmp_array = NULL;
/* add 'W' element */
array = HPDF_Array_New (font->mmgr);
if (!array)
return NULL;
if (HPDF_Dict_Add (font, "W", array) != HPDF_OK)
return NULL;
for (i = 0; i < max; i++, ptmp_map++) {
HPDF_INT w = HPDF_TTFontDef_GetGidWidth (fontdef, *ptmp_map);
if (w != dw) {
if (!tmp_array) {
if ((ret = HPDF_Array_AddNumber (array, i)) != HPDF_OK)
return NULL;
tmp_array = HPDF_Array_New (font->mmgr);
if (!tmp_array)
return NULL;
if ((ret = HPDF_Array_Add (array, tmp_array)) != HPDF_OK)
return NULL;
}
if ((ret = HPDF_Array_AddNumber (tmp_array, w)) != HPDF_OK)
return NULL;
} else
tmp_array = NULL;
}
/* create "CIDToGIDMap" data */
if (fontdef_attr->embedding) {
attr->map_stream = HPDF_DictStream_New (font->mmgr, xref);
if (!attr->map_stream)
return NULL;
if ((ret = HPDF_Dict_Add (font, "CIDToGIDMap", attr->map_stream))
!= HPDF_OK)
return NULL;
for (i = 0; i < max; i++) {
HPDF_BYTE u[2];
HPDF_UINT16 gid = tmp_map[i];
u[0] = gid >> 8;
u[1] = gid;
HPDF_MemCpy ((HPDF_BYTE *)(tmp_map + i), u, 2);
}
if ((ret = HPDF_Stream_Write (attr->map_stream->stream,
(HPDF_BYTE *)tmp_map, max * 2)) != HPDF_OK)
return NULL;
}
} else {
HPDF_SetError (font->error, HPDF_INVALID_FONTDEF_DATA, 0);
return 0;
}
/* create CIDSystemInfo dictionary */
cid_system_info = HPDF_Dict_New (parent->mmgr);
if (!cid_system_info)
return NULL;
if (HPDF_Dict_Add (font, "CIDSystemInfo", cid_system_info) != HPDF_OK)
return NULL;
ret += HPDF_Dict_Add (cid_system_info, "Registry",
HPDF_String_New (parent->mmgr, encoder_attr->registry, NULL));
ret += HPDF_Dict_Add (cid_system_info, "Ordering",
HPDF_String_New (parent->mmgr, encoder_attr->ordering, NULL));
ret += HPDF_Dict_AddNumber (cid_system_info, "Supplement",
encoder_attr->suppliment);
if (ret != HPDF_OK)
return NULL;
return font;
}
static HPDF_STATUS
CIDFontType2_BeforeWrite_Func (HPDF_Dict obj)
{
HPDF_FontAttr font_attr = (HPDF_FontAttr)obj->attr;
HPDF_FontDef def = font_attr->fontdef;
HPDF_TTFontDefAttr def_attr = (HPDF_TTFontDefAttr)def->attr;
HPDF_STATUS ret = 0;
HPDF_PTRACE ((" CIDFontType2_BeforeWrite_Func\n"));
if (font_attr->map_stream)
font_attr->map_stream->filter = obj->filter;
if (font_attr->cmap_stream)
font_attr->cmap_stream->filter = obj->filter;
if (!font_attr->fontdef->descriptor) {
HPDF_Dict descriptor = HPDF_Dict_New (obj->mmgr);
HPDF_Array array;
if (!descriptor)
return HPDF_Error_GetCode (obj->error);
if (def_attr->embedding) {
HPDF_Dict font_data = HPDF_DictStream_New (obj->mmgr,
font_attr->xref);
if (!font_data)
return HPDF_Error_GetCode (obj->error);
if (HPDF_TTFontDef_SaveFontData (font_attr->fontdef,
font_data->stream) != HPDF_OK)
return HPDF_Error_GetCode (obj->error);
ret += HPDF_Dict_Add (descriptor, "FontFile2", font_data);
ret += HPDF_Dict_AddNumber (font_data, "Length1",
def_attr->length1);
ret += HPDF_Dict_AddNumber (font_data, "Length2", 0);
ret += HPDF_Dict_AddNumber (font_data, "Length3", 0);
font_data->filter = obj->filter;
if (ret != HPDF_OK)
return HPDF_Error_GetCode (obj->error);
}
ret += HPDF_Xref_Add (font_attr->xref, descriptor);
ret += HPDF_Dict_AddName (descriptor, "Type", "FontDescriptor");
ret += HPDF_Dict_AddNumber (descriptor, "Ascent", def->ascent);
ret += HPDF_Dict_AddNumber (descriptor, "Descent", def->descent);
ret += HPDF_Dict_AddNumber (descriptor, "Flags", def->flags);
array = HPDF_Box_Array_New (obj->mmgr, def->font_bbox);
ret += HPDF_Dict_Add (descriptor, "FontBBox", array);
ret += HPDF_Dict_AddName (descriptor, "FontName", def_attr->base_font);
ret += HPDF_Dict_AddNumber (descriptor, "ItalicAngle",
def->italic_angle);
ret += HPDF_Dict_AddNumber (descriptor, "StemV", def->stemv);
ret += HPDF_Dict_AddNumber (descriptor, "XHeight", def->x_height);
if (ret != HPDF_OK)
return HPDF_Error_GetCode (obj->error);
font_attr->fontdef->descriptor = descriptor;
}
if ((ret = HPDF_Dict_AddName (obj, "BaseFont",
def_attr->base_font)) != HPDF_OK)
return ret;
if ((ret = HPDF_Dict_AddName (font_attr->descendant_font, "BaseFont",
def_attr->base_font)) != HPDF_OK)
return ret;
return HPDF_Dict_Add (font_attr->descendant_font, "FontDescriptor",
font_attr->fontdef->descriptor);
}
static HPDF_TextWidth
TextWidth (HPDF_Font font,
const HPDF_BYTE *text,
HPDF_UINT len)
{
HPDF_TextWidth tw = {0, 0, 0, 0};
HPDF_FontAttr attr = (HPDF_FontAttr)font->attr;
HPDF_ParseText_Rec parse_state;
HPDF_Encoder encoder = attr->encoder;
HPDF_UINT i = 0;
HPDF_INT dw2;
HPDF_BYTE b = 0;
HPDF_PTRACE ((" HPDF_Type0Font_TextWidth\n"));
if (attr->fontdef->type == HPDF_FONTDEF_TYPE_CID) {
HPDF_CIDFontDefAttr cid_fontdef_attr =
(HPDF_CIDFontDefAttr)attr->fontdef->attr;
dw2 = cid_fontdef_attr->DW2[1];
} else {
dw2 = attr->fontdef->font_bbox.bottom -
attr->fontdef->font_bbox.top;
}
HPDF_Encoder_SetParseText (encoder, &parse_state, text, len);
while (i < len) {
HPDF_ByteType btype = HPDF_CMapEncoder_ByteType (encoder, &parse_state);
HPDF_UINT16 cid;
HPDF_UNICODE unicode;
HPDF_UINT16 code;
HPDF_UINT w = 0;
b = *text++;
code = b;
if (btype == HPDF_BYTE_TYPE_LEAD) {
code <<= 8;
code += *text;
}
if (btype != HPDF_BYTE_TYPE_TRIAL) {
if (attr->writing_mode == HPDF_WMODE_HORIZONTAL) {
if (attr->fontdef->type == HPDF_FONTDEF_TYPE_CID) {
/* cid-based font */
cid = HPDF_CMapEncoder_ToCID (encoder, code);
w = HPDF_CIDFontDef_GetCIDWidth (attr->fontdef, cid);
} else {
/* unicode-based font */
unicode = HPDF_CMapEncoder_ToUnicode (encoder, code);
w = HPDF_TTFontDef_GetCharWidth (attr->fontdef, unicode);
}
} else {
w = -dw2;
}
tw.numchars++;
}
if (HPDF_IS_WHITE_SPACE(code)) {
tw.numwords++;
tw.numspace++;
}
tw.width += w;
i++;
}
/* 2006.08.19 add. */
if (HPDF_IS_WHITE_SPACE(b))
; /* do nothing. */
else
tw.numwords++;
return tw;
}
static HPDF_UINT
MeasureText (HPDF_Font font,
const HPDF_BYTE *text,
HPDF_UINT len,
HPDF_REAL width,
HPDF_REAL font_size,
HPDF_REAL char_space,
HPDF_REAL word_space,
HPDF_BOOL wordwrap,
HPDF_REAL *real_width)
{
HPDF_REAL w = 0;
HPDF_UINT tmp_len = 0;
HPDF_UINT i;
HPDF_FontAttr attr = (HPDF_FontAttr)font->attr;
HPDF_ByteType last_btype = HPDF_BYTE_TYPE_TRIAL;
HPDF_Encoder encoder = attr->encoder;
HPDF_ParseText_Rec parse_state;
HPDF_INT dw2;
HPDF_PTRACE ((" HPDF_Type0Font_MeasureText\n"));
if (attr->fontdef->type == HPDF_FONTDEF_TYPE_CID) {
HPDF_CIDFontDefAttr cid_fontdef_attr =
(HPDF_CIDFontDefAttr)attr->fontdef->attr;
dw2 = cid_fontdef_attr->DW2[1];
} else {
dw2 = attr->fontdef->font_bbox.bottom -
attr->fontdef->font_bbox.top;
}
HPDF_Encoder_SetParseText (encoder, &parse_state, text, len);
for (i = 0; i < len; i++) {
HPDF_BYTE b = *text++;
HPDF_BYTE b2 = *text; /* next byte */
HPDF_ByteType btype = HPDF_Encoder_ByteType (encoder, &parse_state);
HPDF_UNICODE unicode;
HPDF_UINT16 code = b;
HPDF_UINT16 tmp_w = 0;
if (btype == HPDF_BYTE_TYPE_LEAD) {
code <<= 8;
code += b2;
}
if (!wordwrap) {
if (HPDF_IS_WHITE_SPACE(b)) {
tmp_len = i + 1;
if (real_width)
*real_width = w;
} else if (btype == HPDF_BYTE_TYPE_SINGLE ||
btype == HPDF_BYTE_TYPE_LEAD) {
tmp_len = i;
if (real_width)
*real_width = w;
}
} else {
if (HPDF_IS_WHITE_SPACE(b)) {
tmp_len = i + 1;
if (real_width)
*real_width = w;
} else
if (last_btype == HPDF_BYTE_TYPE_TRIAL ||
(btype == HPDF_BYTE_TYPE_LEAD &&
last_btype == HPDF_BYTE_TYPE_SINGLE)) {
if (!HPDF_Encoder_CheckJWWLineHead(encoder, code)) {
tmp_len = i;
if (real_width)
*real_width = w;
}
}
}
if (HPDF_IS_WHITE_SPACE(b)) {
w += word_space;
}
if (btype != HPDF_BYTE_TYPE_TRIAL) {
if (attr->writing_mode == HPDF_WMODE_HORIZONTAL) {
if (attr->fontdef->type == HPDF_FONTDEF_TYPE_CID) {
/* cid-based font */
HPDF_UINT16 cid = HPDF_CMapEncoder_ToCID (encoder, code);
tmp_w = HPDF_CIDFontDef_GetCIDWidth (attr->fontdef, cid);
} else {
/* unicode-based font */
unicode = HPDF_CMapEncoder_ToUnicode (encoder, code);
tmp_w = HPDF_TTFontDef_GetCharWidth (attr->fontdef,
unicode);
}
} else {
tmp_w = -dw2;
}
if (i > 0)
w += char_space;
}
w += (HPDF_DOUBLE)tmp_w * font_size / 1000;
/* 2006.08.04 break when it encountered line feed */
if (w > width || b == 0x0A)
return tmp_len;
if (HPDF_IS_WHITE_SPACE(b))
last_btype = HPDF_BYTE_TYPE_TRIAL;
else
last_btype = btype;
}
/* all of text can be put in the specified width */
if (real_width)
*real_width = w;
return len;
}
static char*
UINT16ToHex (char *s,
HPDF_UINT16 val,
char *eptr)
{
HPDF_BYTE b[2];
HPDF_UINT16 val2;
char c;
if (eptr - s < 7)
return s;
/* align byte-order */
HPDF_MemCpy (b, (HPDF_BYTE *)&val, 2);
val2 = (HPDF_UINT16)((HPDF_UINT16)b[0] << 8 | (HPDF_UINT16)b[1]);
HPDF_MemCpy (b, (HPDF_BYTE *)&val2, 2);
*s++ = '<';
if (b[0] != 0) {
c = b[0] >> 4;
if (c <= 9)
c += 0x30;
else
c += 0x41 - 10;
*s++ = c;
c = b[0] & 0x0f;
if (c <= 9)
c += 0x30;
else
c += 0x41 - 10;
*s++ = c;
}
c = b[1] >> 4;
if (c <= 9)
c += 0x30;
else
c += 0x41 - 10;
*s++ = c;
c = b[1] & 0x0f;
if (c <= 9)
c += 0x30;
else
c += 0x41 - 10;
*s++ = c;
*s++ = '>';
*s = 0;
return s;
}
static HPDF_Dict
CreateCMap (HPDF_Encoder encoder,
HPDF_Xref xref)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_Dict cmap = HPDF_DictStream_New (encoder->mmgr, xref);
HPDF_CMapEncoderAttr attr = (HPDF_CMapEncoderAttr)encoder->attr;
char buf[HPDF_TMP_BUF_SIZ];
char *pbuf;
char *eptr = buf + HPDF_TMP_BUF_SIZ - 1;
HPDF_UINT i;
HPDF_UINT phase, odd;
HPDF_Dict sysinfo;
if (!cmap)
return NULL;
ret += HPDF_Dict_AddName (cmap, "Type", "CMap");
ret += HPDF_Dict_AddName (cmap, "CMapName", encoder->name);
sysinfo = HPDF_Dict_New (encoder->mmgr);
if (!sysinfo)
return NULL;
if (HPDF_Dict_Add (cmap, "CIDSystemInfo", sysinfo) != HPDF_OK)
return NULL;
ret += HPDF_Dict_Add (sysinfo, "Registry", HPDF_String_New (encoder->mmgr,
attr->registry, NULL));
ret += HPDF_Dict_Add (sysinfo, "Ordering", HPDF_String_New (encoder->mmgr,
attr->ordering, NULL));
ret += HPDF_Dict_AddNumber (sysinfo, "Supplement", attr->suppliment);
ret += HPDF_Dict_AddNumber (cmap, "WMode",
(HPDF_UINT32)attr->writing_mode);
/* create cmap data from encoding data */
ret += HPDF_Stream_WriteStr (cmap->stream,
"%!PS-Adobe-3.0 Resource-CMap\r\n");
ret += HPDF_Stream_WriteStr (cmap->stream,
"%%DocumentNeededResources: ProcSet (CIDInit)\r\n");
ret += HPDF_Stream_WriteStr (cmap->stream,
"%%IncludeResource: ProcSet (CIDInit)\r\n");
pbuf = HPDF_StrCpy (buf, "%%BeginResource: CMap (", eptr);
pbuf = HPDF_StrCpy (pbuf, encoder->name, eptr);
HPDF_StrCpy (pbuf, ")\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
pbuf = HPDF_StrCpy (buf, "%%Title: (", eptr);
pbuf = HPDF_StrCpy (pbuf, encoder->name, eptr);
*pbuf++ = ' ';
pbuf = HPDF_StrCpy (pbuf, attr->registry, eptr);
*pbuf++ = ' ';
pbuf = HPDF_StrCpy (pbuf, attr->ordering, eptr);
*pbuf++ = ' ';
pbuf = HPDF_IToA (pbuf, attr->suppliment, eptr);
HPDF_StrCpy (pbuf, ")\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
ret += HPDF_Stream_WriteStr (cmap->stream, "%%Version: 1.0\r\n");
ret += HPDF_Stream_WriteStr (cmap->stream, "%%EndComments\r\n");
ret += HPDF_Stream_WriteStr (cmap->stream,
"/CIDInit /ProcSet findresource begin\r\n\r\n");
/* Adobe CMap and CIDFont Files Specification recommends to allocate
* five more elements to this dictionary than existing elements.
*/
ret += HPDF_Stream_WriteStr (cmap->stream, "12 dict begin\r\n\r\n");
ret += HPDF_Stream_WriteStr (cmap->stream, "begincmap\r\n\r\n");
ret += HPDF_Stream_WriteStr (cmap->stream,
"/CIDSystemInfo 3 dict dup begin\r\n");
pbuf = HPDF_StrCpy (buf, " /Registry (", eptr);
pbuf = HPDF_StrCpy (pbuf, attr->registry, eptr);
HPDF_StrCpy (pbuf, ") def\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
pbuf = HPDF_StrCpy (buf, " /Ordering (", eptr);
pbuf = HPDF_StrCpy (pbuf, attr->ordering, eptr);
HPDF_StrCpy (pbuf, ") def\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
pbuf = HPDF_StrCpy (buf, " /Supplement ", eptr);
pbuf = HPDF_IToA (pbuf, attr->suppliment, eptr);
pbuf = HPDF_StrCpy (pbuf, " def\r\n", eptr);
HPDF_StrCpy (pbuf, "end def\r\n\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
pbuf = HPDF_StrCpy (buf, "/CMapName /", eptr);
pbuf = HPDF_StrCpy (pbuf, encoder->name, eptr);
HPDF_StrCpy (pbuf, " def\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
ret += HPDF_Stream_WriteStr (cmap->stream, "/CMapVersion 1.0 def\r\n");
ret += HPDF_Stream_WriteStr (cmap->stream, "/CMapType 1 def\r\n\r\n");
if (attr->uid_offset >= 0) {
pbuf = HPDF_StrCpy (buf, "/UIDOffset ", eptr);
pbuf = HPDF_IToA (pbuf, attr->uid_offset, eptr);
HPDF_StrCpy (pbuf, " def\r\n\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
}
pbuf = HPDF_StrCpy (buf, "/XUID [", eptr);
pbuf = HPDF_IToA (pbuf, attr->xuid[0], eptr);
*pbuf++ = ' ';
pbuf = HPDF_IToA (pbuf, attr->xuid[1], eptr);
*pbuf++ = ' ';
pbuf = HPDF_IToA (pbuf, attr->xuid[2], eptr);
HPDF_StrCpy (pbuf, "] def\r\n\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
pbuf = HPDF_StrCpy (buf, "/WMode ", eptr);
pbuf = HPDF_IToA (pbuf, (HPDF_UINT32)attr->writing_mode, eptr);
HPDF_StrCpy (pbuf, " def\r\n\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
/* add code-space-range */
pbuf = HPDF_IToA (buf, attr->code_space_range->count, eptr);
HPDF_StrCpy (pbuf, " begincodespacerange\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
for (i = 0; i < attr->code_space_range->count; i++) {
HPDF_CidRange_Rec *range = HPDF_List_ItemAt (attr->code_space_range,
i);
pbuf = UINT16ToHex (buf, range->from, eptr);
*pbuf++ = ' ';
pbuf = UINT16ToHex (pbuf, range->to, eptr);
HPDF_StrCpy (pbuf, "\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
if (ret != HPDF_OK)
return NULL;
}
HPDF_StrCpy (buf, "endcodespacerange\r\n\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
if (ret != HPDF_OK)
return NULL;
/* add not-def-range */
pbuf = HPDF_IToA (buf, attr->notdef_range->count, eptr);
HPDF_StrCpy (pbuf, " beginnotdefrange\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
for (i = 0; i < attr->notdef_range->count; i++) {
HPDF_CidRange_Rec *range = HPDF_List_ItemAt (attr->notdef_range, i);
pbuf = UINT16ToHex (buf, range->from, eptr);
*pbuf++ = ' ';
pbuf = UINT16ToHex (pbuf, range->to, eptr);
*pbuf++ = ' ';
pbuf = HPDF_IToA (pbuf, range->cid, eptr);
HPDF_StrCpy (pbuf, "\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
if (ret != HPDF_OK)
return NULL;
}
HPDF_StrCpy (buf, "endnotdefrange\r\n\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
if (ret != HPDF_OK)
return NULL;
/* add cid-range */
phase = attr->cmap_range->count / 100;
odd = attr->cmap_range->count % 100;
if (phase > 0)
pbuf = HPDF_IToA (buf, 100, eptr);
else
pbuf = HPDF_IToA (buf, odd, eptr);
HPDF_StrCpy (pbuf, " begincidrange\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
for (i = 0; i < attr->cmap_range->count; i++) {
HPDF_CidRange_Rec *range = HPDF_List_ItemAt (attr->cmap_range, i);
pbuf = UINT16ToHex (buf, range->from, eptr);
*pbuf++ = ' ';
pbuf = UINT16ToHex (pbuf, range->to, eptr);
*pbuf++ = ' ';
pbuf = HPDF_IToA (pbuf, range->cid, eptr);
HPDF_StrCpy (pbuf, "\r\n", eptr);
ret += HPDF_Stream_WriteStr (cmap->stream, buf);
if ((i + 1) %100 == 0) {
phase--;
pbuf = HPDF_StrCpy (buf, "endcidrange\r\n\r\n", eptr);
if (phase > 0)
pbuf = HPDF_IToA (pbuf, 100, eptr);