315 lines
7.0 KiB
C
315 lines
7.0 KiB
C
|
#include "mupdf/fitz.h"
|
||
|
|
#include "mupdf/pdf.h"
|
||
|
|
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
size_t
|
||
|
|
pdf_cmap_size(fz_context *ctx, pdf_cmap *cmap)
|
||
|
|
{
|
||
|
|
if (cmap == NULL)
|
||
|
|
return 0;
|
||
|
|
if (cmap->storable.refs < 0)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
return pdf_cmap_size(ctx, cmap->usecmap) +
|
||
|
|
cmap->rcap * sizeof *cmap->ranges +
|
||
|
|
cmap->xcap * sizeof *cmap->xranges +
|
||
|
|
cmap->mcap * sizeof *cmap->mranges;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Load CMap stream in PDF file
|
||
|
|
*/
|
||
|
|
pdf_cmap *
|
||
|
|
pdf_load_embedded_cmap(fz_context *ctx, pdf_document *doc, pdf_obj *stmobj)
|
||
|
|
{
|
||
|
|
fz_stream *file = NULL;
|
||
|
|
pdf_cmap *cmap = NULL;
|
||
|
|
pdf_cmap *usecmap = NULL;
|
||
|
|
pdf_obj *obj;
|
||
|
|
|
||
|
|
fz_var(file);
|
||
|
|
fz_var(cmap);
|
||
|
|
fz_var(usecmap);
|
||
|
|
|
||
|
|
if ((cmap = pdf_find_item(ctx, pdf_drop_cmap_imp, stmobj)) != NULL)
|
||
|
|
return cmap;
|
||
|
|
|
||
|
|
fz_try(ctx)
|
||
|
|
{
|
||
|
|
file = pdf_open_stream(ctx, stmobj);
|
||
|
|
cmap = pdf_load_cmap(ctx, file);
|
||
|
|
|
||
|
|
obj = pdf_dict_get(ctx, stmobj, PDF_NAME(WMode));
|
||
|
|
if (pdf_is_int(ctx, obj))
|
||
|
|
pdf_set_cmap_wmode(ctx, cmap, pdf_to_int(ctx, obj));
|
||
|
|
|
||
|
|
obj = pdf_dict_get(ctx, stmobj, PDF_NAME(UseCMap));
|
||
|
|
if (pdf_is_name(ctx, obj))
|
||
|
|
{
|
||
|
|
usecmap = pdf_load_system_cmap(ctx, pdf_to_name(ctx, obj));
|
||
|
|
pdf_set_usecmap(ctx, cmap, usecmap);
|
||
|
|
}
|
||
|
|
else if (pdf_is_indirect(ctx, obj))
|
||
|
|
{
|
||
|
|
if (pdf_mark_obj(ctx, obj))
|
||
|
|
fz_throw(ctx, FZ_ERROR_GENERIC, "recursive CMap");
|
||
|
|
fz_try(ctx)
|
||
|
|
usecmap = pdf_load_embedded_cmap(ctx, doc, obj);
|
||
|
|
fz_always(ctx)
|
||
|
|
pdf_unmark_obj(ctx, obj);
|
||
|
|
fz_catch(ctx)
|
||
|
|
fz_rethrow(ctx);
|
||
|
|
pdf_set_usecmap(ctx, cmap, usecmap);
|
||
|
|
}
|
||
|
|
|
||
|
|
pdf_store_item(ctx, stmobj, cmap, pdf_cmap_size(ctx, cmap));
|
||
|
|
}
|
||
|
|
fz_always(ctx)
|
||
|
|
{
|
||
|
|
fz_drop_stream(ctx, file);
|
||
|
|
pdf_drop_cmap(ctx, usecmap);
|
||
|
|
}
|
||
|
|
fz_catch(ctx)
|
||
|
|
{
|
||
|
|
pdf_drop_cmap(ctx, cmap);
|
||
|
|
fz_rethrow(ctx);
|
||
|
|
}
|
||
|
|
|
||
|
|
return cmap;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Create an Identity-* CMap (for both 1 and 2-byte encodings)
|
||
|
|
*/
|
||
|
|
pdf_cmap *
|
||
|
|
pdf_new_identity_cmap(fz_context *ctx, int wmode, int bytes)
|
||
|
|
{
|
||
|
|
pdf_cmap *cmap = pdf_new_cmap(ctx);
|
||
|
|
fz_try(ctx)
|
||
|
|
{
|
||
|
|
unsigned int high = (1 << (bytes * 8)) - 1;
|
||
|
|
if (wmode)
|
||
|
|
fz_strlcpy(cmap->cmap_name, "Identity-V", sizeof cmap->cmap_name);
|
||
|
|
else
|
||
|
|
fz_strlcpy(cmap->cmap_name, "Identity-H", sizeof cmap->cmap_name);
|
||
|
|
pdf_add_codespace(ctx, cmap, 0, high, bytes);
|
||
|
|
pdf_map_range_to_range(ctx, cmap, 0, high, 0);
|
||
|
|
pdf_sort_cmap(ctx, cmap);
|
||
|
|
pdf_set_cmap_wmode(ctx, cmap, wmode);
|
||
|
|
}
|
||
|
|
fz_catch(ctx)
|
||
|
|
{
|
||
|
|
pdf_drop_cmap(ctx, cmap);
|
||
|
|
fz_rethrow(ctx);
|
||
|
|
}
|
||
|
|
return cmap;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Load built-in CMap resource.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef NO_CJK
|
||
|
|
|
||
|
|
pdf_cmap *
|
||
|
|
pdf_load_builtin_cmap(fz_context *ctx, const char *name)
|
||
|
|
{
|
||
|
|
if (!strcmp(name, "Identity-H")) return pdf_new_identity_cmap(ctx, 0, 2);
|
||
|
|
if (!strcmp(name, "Identity-V")) return pdf_new_identity_cmap(ctx, 1, 2);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
/* To regenerate this list: :r !bash scripts/runcmapdump.sh */
|
||
|
|
|
||
|
|
#include "cmaps/83pv-RKSJ-H.h"
|
||
|
|
#include "cmaps/90ms-RKSJ-H.h"
|
||
|
|
#include "cmaps/90ms-RKSJ-V.h"
|
||
|
|
#include "cmaps/90msp-RKSJ-H.h"
|
||
|
|
#include "cmaps/90msp-RKSJ-V.h"
|
||
|
|
#include "cmaps/90pv-RKSJ-H.h"
|
||
|
|
#include "cmaps/Add-RKSJ-H.h"
|
||
|
|
#include "cmaps/Add-RKSJ-V.h"
|
||
|
|
#include "cmaps/Adobe-CNS1-UCS2.h"
|
||
|
|
#include "cmaps/Adobe-GB1-UCS2.h"
|
||
|
|
#include "cmaps/Adobe-Japan1-UCS2.h"
|
||
|
|
#include "cmaps/Adobe-Korea1-UCS2.h"
|
||
|
|
#include "cmaps/B5pc-H.h"
|
||
|
|
#include "cmaps/B5pc-V.h"
|
||
|
|
#include "cmaps/CNS-EUC-H.h"
|
||
|
|
#include "cmaps/CNS-EUC-V.h"
|
||
|
|
#include "cmaps/ETen-B5-H.h"
|
||
|
|
#include "cmaps/ETen-B5-V.h"
|
||
|
|
#include "cmaps/ETenms-B5-H.h"
|
||
|
|
#include "cmaps/ETenms-B5-V.h"
|
||
|
|
#include "cmaps/EUC-H.h"
|
||
|
|
#include "cmaps/EUC-V.h"
|
||
|
|
#include "cmaps/Ext-RKSJ-H.h"
|
||
|
|
#include "cmaps/Ext-RKSJ-V.h"
|
||
|
|
#include "cmaps/GB-EUC-H.h"
|
||
|
|
#include "cmaps/GB-EUC-V.h"
|
||
|
|
#include "cmaps/GBK-EUC-H.h"
|
||
|
|
#include "cmaps/GBK-EUC-V.h"
|
||
|
|
#include "cmaps/GBK-X.h"
|
||
|
|
#include "cmaps/GBK2K-H.h"
|
||
|
|
#include "cmaps/GBK2K-V.h"
|
||
|
|
#include "cmaps/GBKp-EUC-H.h"
|
||
|
|
#include "cmaps/GBKp-EUC-V.h"
|
||
|
|
#include "cmaps/GBpc-EUC-H.h"
|
||
|
|
#include "cmaps/GBpc-EUC-V.h"
|
||
|
|
#include "cmaps/H.h"
|
||
|
|
#include "cmaps/HKscs-B5-H.h"
|
||
|
|
#include "cmaps/HKscs-B5-V.h"
|
||
|
|
#include "cmaps/Identity-H.h"
|
||
|
|
#include "cmaps/Identity-V.h"
|
||
|
|
#include "cmaps/KSC-EUC-H.h"
|
||
|
|
#include "cmaps/KSC-EUC-V.h"
|
||
|
|
#include "cmaps/KSCms-UHC-H.h"
|
||
|
|
#include "cmaps/KSCms-UHC-HW-H.h"
|
||
|
|
#include "cmaps/KSCms-UHC-HW-V.h"
|
||
|
|
#include "cmaps/KSCms-UHC-V.h"
|
||
|
|
#include "cmaps/KSCpc-EUC-H.h"
|
||
|
|
#include "cmaps/UniCNS-UCS2-H.h"
|
||
|
|
#include "cmaps/UniCNS-UCS2-V.h"
|
||
|
|
#include "cmaps/UniCNS-UTF16-H.h"
|
||
|
|
#include "cmaps/UniCNS-UTF16-V.h"
|
||
|
|
#include "cmaps/UniCNS-X.h"
|
||
|
|
#include "cmaps/UniGB-UCS2-H.h"
|
||
|
|
#include "cmaps/UniGB-UCS2-V.h"
|
||
|
|
#include "cmaps/UniGB-UTF16-H.h"
|
||
|
|
#include "cmaps/UniGB-UTF16-V.h"
|
||
|
|
#include "cmaps/UniGB-X.h"
|
||
|
|
#include "cmaps/UniJIS-UCS2-H.h"
|
||
|
|
#include "cmaps/UniJIS-UCS2-HW-H.h"
|
||
|
|
#include "cmaps/UniJIS-UCS2-HW-V.h"
|
||
|
|
#include "cmaps/UniJIS-UCS2-V.h"
|
||
|
|
#include "cmaps/UniJIS-UTF16-H.h"
|
||
|
|
#include "cmaps/UniJIS-UTF16-V.h"
|
||
|
|
#include "cmaps/UniJIS-X.h"
|
||
|
|
#include "cmaps/UniKS-UCS2-H.h"
|
||
|
|
#include "cmaps/UniKS-UCS2-V.h"
|
||
|
|
#include "cmaps/UniKS-UTF16-H.h"
|
||
|
|
#include "cmaps/UniKS-UTF16-V.h"
|
||
|
|
#include "cmaps/UniKS-X.h"
|
||
|
|
#include "cmaps/V.h"
|
||
|
|
|
||
|
|
static pdf_cmap *table[] = {
|
||
|
|
&cmap_83pv_RKSJ_H,
|
||
|
|
&cmap_90ms_RKSJ_H,
|
||
|
|
&cmap_90ms_RKSJ_V,
|
||
|
|
&cmap_90msp_RKSJ_H,
|
||
|
|
&cmap_90msp_RKSJ_V,
|
||
|
|
&cmap_90pv_RKSJ_H,
|
||
|
|
&cmap_Add_RKSJ_H,
|
||
|
|
&cmap_Add_RKSJ_V,
|
||
|
|
&cmap_Adobe_CNS1_UCS2,
|
||
|
|
&cmap_Adobe_GB1_UCS2,
|
||
|
|
&cmap_Adobe_Japan1_UCS2,
|
||
|
|
&cmap_Adobe_Korea1_UCS2,
|
||
|
|
&cmap_B5pc_H,
|
||
|
|
&cmap_B5pc_V,
|
||
|
|
&cmap_CNS_EUC_H,
|
||
|
|
&cmap_CNS_EUC_V,
|
||
|
|
&cmap_ETen_B5_H,
|
||
|
|
&cmap_ETen_B5_V,
|
||
|
|
&cmap_ETenms_B5_H,
|
||
|
|
&cmap_ETenms_B5_V,
|
||
|
|
&cmap_EUC_H,
|
||
|
|
&cmap_EUC_V,
|
||
|
|
&cmap_Ext_RKSJ_H,
|
||
|
|
&cmap_Ext_RKSJ_V,
|
||
|
|
&cmap_GB_EUC_H,
|
||
|
|
&cmap_GB_EUC_V,
|
||
|
|
&cmap_GBK_EUC_H,
|
||
|
|
&cmap_GBK_EUC_V,
|
||
|
|
&cmap_GBK_X,
|
||
|
|
&cmap_GBK2K_H,
|
||
|
|
&cmap_GBK2K_V,
|
||
|
|
&cmap_GBKp_EUC_H,
|
||
|
|
&cmap_GBKp_EUC_V,
|
||
|
|
&cmap_GBpc_EUC_H,
|
||
|
|
&cmap_GBpc_EUC_V,
|
||
|
|
&cmap_H,
|
||
|
|
&cmap_HKscs_B5_H,
|
||
|
|
&cmap_HKscs_B5_V,
|
||
|
|
&cmap_Identity_H,
|
||
|
|
&cmap_Identity_V,
|
||
|
|
&cmap_KSC_EUC_H,
|
||
|
|
&cmap_KSC_EUC_V,
|
||
|
|
&cmap_KSCms_UHC_H,
|
||
|
|
&cmap_KSCms_UHC_HW_H,
|
||
|
|
&cmap_KSCms_UHC_HW_V,
|
||
|
|
&cmap_KSCms_UHC_V,
|
||
|
|
&cmap_KSCpc_EUC_H,
|
||
|
|
&cmap_UniCNS_UCS2_H,
|
||
|
|
&cmap_UniCNS_UCS2_V,
|
||
|
|
&cmap_UniCNS_UTF16_H,
|
||
|
|
&cmap_UniCNS_UTF16_V,
|
||
|
|
&cmap_UniCNS_X,
|
||
|
|
&cmap_UniGB_UCS2_H,
|
||
|
|
&cmap_UniGB_UCS2_V,
|
||
|
|
&cmap_UniGB_UTF16_H,
|
||
|
|
&cmap_UniGB_UTF16_V,
|
||
|
|
&cmap_UniGB_X,
|
||
|
|
&cmap_UniJIS_UCS2_H,
|
||
|
|
&cmap_UniJIS_UCS2_HW_H,
|
||
|
|
&cmap_UniJIS_UCS2_HW_V,
|
||
|
|
&cmap_UniJIS_UCS2_V,
|
||
|
|
&cmap_UniJIS_UTF16_H,
|
||
|
|
&cmap_UniJIS_UTF16_V,
|
||
|
|
&cmap_UniJIS_X,
|
||
|
|
&cmap_UniKS_UCS2_H,
|
||
|
|
&cmap_UniKS_UCS2_V,
|
||
|
|
&cmap_UniKS_UTF16_H,
|
||
|
|
&cmap_UniKS_UTF16_V,
|
||
|
|
&cmap_UniKS_X,
|
||
|
|
&cmap_V,
|
||
|
|
};
|
||
|
|
|
||
|
|
pdf_cmap *
|
||
|
|
pdf_load_builtin_cmap(fz_context *ctx, const char *name)
|
||
|
|
{
|
||
|
|
int r = nelem(table)-1;
|
||
|
|
int l = 0;
|
||
|
|
while (l <= r)
|
||
|
|
{
|
||
|
|
int m = (l + r) >> 1;
|
||
|
|
int c = strcmp(name, table[m]->cmap_name);
|
||
|
|
if (c < 0)
|
||
|
|
r = m - 1;
|
||
|
|
else if (c > 0)
|
||
|
|
l = m + 1;
|
||
|
|
else
|
||
|
|
return table[m];
|
||
|
|
}
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Load predefined CMap from system.
|
||
|
|
*/
|
||
|
|
pdf_cmap *
|
||
|
|
pdf_load_system_cmap(fz_context *ctx, const char *cmap_name)
|
||
|
|
{
|
||
|
|
pdf_cmap *usecmap;
|
||
|
|
pdf_cmap *cmap;
|
||
|
|
|
||
|
|
cmap = pdf_load_builtin_cmap(ctx, cmap_name);
|
||
|
|
if (!cmap)
|
||
|
|
fz_throw(ctx, FZ_ERROR_GENERIC, "no builtin cmap file: %s", cmap_name);
|
||
|
|
|
||
|
|
if (cmap->usecmap_name[0] && !cmap->usecmap)
|
||
|
|
{
|
||
|
|
usecmap = pdf_load_system_cmap(ctx, cmap->usecmap_name);
|
||
|
|
if (!usecmap)
|
||
|
|
fz_throw(ctx, FZ_ERROR_GENERIC, "no builtin cmap file: %s", cmap->usecmap_name);
|
||
|
|
pdf_set_usecmap(ctx, cmap, usecmap);
|
||
|
|
}
|
||
|
|
|
||
|
|
return cmap;
|
||
|
|
}
|