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/* Copyright (C) 2001-2006 Artifex Software, Inc.
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This software is provided AS-IS with no warranty, either express or
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This software is distributed under license and may not be copied, modified
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or distributed except as expressly authorized under the terms of that
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license. Refer to licensing information at http://www.artifex.com/
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or contact Artifex Software, Inc., 7 Mt. Lassen Drive - Suite A-134,
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San Rafael, CA 94903, U.S.A., +1(415)492-9861, for further information.
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/* $Id: gxfapiu.c 8250 2007-09-25 13:31:24Z giles $ */
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/* Font API support : UFST common initialization */
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#define MAX_STATIC_FCO_COUNT 4
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/* -------------------- UFST callback dispatcher ------------- */
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/* This code provides dispatching UFST callbacks to the PDL */
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static LPUB8 stub_PCLEO_charptr(FSP LPUB8 pfont_hdr, UW16 sym_code)
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static LPUB8 stub_PCLchId2ptr(FSP UW16 chId)
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static LPUB8 stub_PCLglyphID2Ptr(FSP UW16 glyphID)
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/* This global is defined here because the UFST needs it to link against. */
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/* set to 1 to display UFST debugging statements */
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GLOBAL const SW16 trace_sw = 0;
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The following 4 variables are defined statically
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They could be stored in the gs_lib_ctx but that would require casting the types
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to avoid including ufst's typedefs.
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static LPUB8 (*m_PCLEO_charptr)(FSP LPUB8 pfont_hdr, UW16 sym_code) = stub_PCLEO_charptr;
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static LPUB8 (*m_PCLchId2ptr)(FSP UW16 chId) = stub_PCLchId2ptr;
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static LPUB8 (*m_PCLglyphID2Ptr)(FSP UW16 glyphID) = stub_PCLglyphID2Ptr;
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static fco_list_elem static_fco_list[MAX_STATIC_FCO_COUNT] = {0, 0, 0, 0};
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static char static_fco_paths[MAX_STATIC_FCO_COUNT][gp_file_name_sizeof];
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static int static_fco_count = 0;
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static bool ufst_initialized = false;
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LPUB8 PCLEO_charptr(FSP LPUB8 pfont_hdr, UW16 sym_code)
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{ return m_PCLEO_charptr(FSA pfont_hdr, sym_code);
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LPUB8 PCLchId2ptr(FSP UW16 chId)
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{ return m_PCLchId2ptr(FSA chId);
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LPUB8 PCLglyphID2Ptr(FSP UW16 glyphID)
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{ return m_PCLglyphID2Ptr(FSA glyphID);
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/* Set UFST callbacks. Each PDL will want it's own character build function and must set the callbacks
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* upon language entry/initialization.
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/* Warning : this function may cause a reentrancy problem
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due to a modification of static variables.
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Nevertheless this problem isn't important in a
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single interpreter build, because the values
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really change on the first demand only.
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See also a comment in gs_fapiufst_finit.
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void gx_set_UFST_Callbacks(LPUB8 (*p_PCLEO_charptr)(FSP LPUB8 pfont_hdr, UW16 sym_code),
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LPUB8 (*p_PCLchId2ptr)(FSP UW16 chId),
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LPUB8 (*p_PCLglyphID2Ptr)(FSP UW16 glyphID))
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{ m_PCLEO_charptr = (p_PCLEO_charptr != NULL ? p_PCLEO_charptr : stub_PCLEO_charptr);
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m_PCLchId2ptr = (p_PCLchId2ptr != NULL ? p_PCLchId2ptr : stub_PCLchId2ptr);
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m_PCLglyphID2Ptr = (p_PCLglyphID2Ptr != NULL ? p_PCLglyphID2Ptr : stub_PCLglyphID2Ptr);
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#define MAX_OPEN_LIBRARIES 5 /* NB */
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#define BITMAP_WIDTH 1 /* must be 1, 2, 4 or 8 */
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/* returns negative on error,
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* 1 = "I just initialized for the first time and you might want to as well."
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* 0 = "I've already initialized but its ok to call me."
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gx_UFST_init(const UB8 *ufst_root_dir)
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IFCONFIG config_block;
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if (ufst_initialized)
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strcpy(config_block.ufstPath, ufst_root_dir);
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strcpy(config_block.typePath, ufst_root_dir);
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config_block.num_files = MAX_OPEN_LIBRARIES; /* max open library files */
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config_block.bit_map_width = BITMAP_WIDTH; /* bitmap width 1, 2 or 4 */
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/* These parameters were set in open_UFST() (fapiufst.c) but were left
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uninitialized in pl_load_built_in_fonts() (plulfont.c). */
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config_block.typePath[0] = 0;
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if ((status = CGIFinit(FSA0)) != 0) {
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dprintf1("CGIFinit() error: %d\n", status);
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if ((status = CGIFconfig(FSA &config_block)) != 0) {
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dprintf1("CGIFconfig() error: %d\n", status);
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if ((status = CGIFenter(FSA0)) != 0) {
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dprintf1("CGIFenter() error: %u\n",status);
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ufst_initialized = TRUE;
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return 1; /* first time, caller may have more initialization to do */
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ufst_initialized = false;
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/* Access to the static FCO list for the language switching project. */
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fco_list_elem *gx_UFST_find_static_fco(const char *font_file_path)
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for (i = 0; i < static_fco_count; i++)
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if (!strcmp(static_fco_list[i].file_path, font_file_path))
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return &static_fco_list[i];
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fco_list_elem *gx_UFST_find_static_fco_handle(SW16 fcHandle)
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for (i = 0; i < static_fco_count; i++)
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if (static_fco_list[i].fcHandle == fcHandle)
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return &static_fco_list[i];
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SW16 gx_UFST_find_fco_handle_by_name(const char *font_file_path)
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fco_list_elem *fco = gx_UFST_find_static_fco(font_file_path);
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return fco->fcHandle;
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UW16 gx_UFST_open_static_fco(const char *font_file_path, SW16 *result_fcHandle)
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if (static_fco_count >= MAX_STATIC_FCO_COUNT)
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return ERR_fco_NoMem;
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code = CGIFfco_Open(FSA (UB8 *)font_file_path, &fcHandle);
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e = &static_fco_list[static_fco_count];
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strncpy(static_fco_paths[static_fco_count], font_file_path,
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sizeof(static_fco_paths[static_fco_count]));
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e->file_path = static_fco_paths[static_fco_count];
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e->fcHandle = fcHandle;
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e->open_count = -1; /* Unused for static FCOs. */
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*result_fcHandle = fcHandle;
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**result_fcHandle = -1;
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return ERR_fco_NoMem;
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UW16 gx_UFST_close_static_fco(SW16 fcHandle)
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for (i = 0; i < static_fco_count; i++)
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if (static_fco_list[i].fcHandle == fcHandle)
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if (i >= static_fco_count)
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return ERR_fco_NoMem;
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CGIFfco_Close(FSA fcHandle);
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for (i++; i < static_fco_count; i++) {
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static_fco_list[i - 1] = static_fco_list[i];
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strcpy(static_fco_paths[i - 1], static_fco_paths[i]);
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void gx_UFST_close_static_fcos()
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for(; static_fco_count; )
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gx_UFST_close_static_fco(static_fco_list[0].fcHandle);