xref: /plan9/sys/src/cmd/gs/src/gxfapi.c (revision 593dc095aefb2a85c828727bbfa9da139a49bdf4)
1 /* Copyright (C) 1991, 2000 Aladdin Enterprises.  All rights reserved.
2 
3   This software is provided AS-IS with no warranty, either express or
4   implied.
5 
6   This software is distributed under license and may not be copied,
7   modified or distributed except as expressly authorized under the terms
8   of the license contained in the file LICENSE in this distribution.
9 
10   For more information about licensing, please refer to
11   http://www.ghostscript.com/licensing/. For information on
12   commercial licensing, go to http://www.artifex.com/licensing/ or
13   contact Artifex Software, Inc., 101 Lucas Valley Road #110,
14   San Rafael, CA  94903, U.S.A., +1(415)492-9861.
15 */
16 
17 /* $Id: gxfapi.c,v 1.6 2002/06/16 05:48:56 lpd Exp $ */
18 /* Font API support */
19 
20 /* GS includes : */
21 #include "gx.h"
22 /* UFST includes : */
23 #include "cgconfig.h"
24 #include "port.h"
25 #include "shareinc.h"
26 /* GS includes : */
27 #include "gxfapi.h"
28 
29 /* -------------------- UFST callback dispatcher ------------- */
30 
31 /*  This code provides dispatching UFST callbacks to GS or PCL. */
32 
33 struct IF_STATE;
34 
stub_PCLEO_charptr(LPUB8 pfont_hdr,UW16 sym_code)35 private LPUB8 stub_PCLEO_charptr(LPUB8 pfont_hdr, UW16  sym_code)
36 {   return NULL;
37 }
38 
stub_PCLchId2ptr(IF_STATE * pIFS,UW16 chId)39 private LPUB8 stub_PCLchId2ptr(IF_STATE *pIFS, UW16 chId)
40 {   return NULL;
41 }
42 
stub_PCLglyphID2Ptr(IF_STATE * pIFS,UW16 glyphID)43 private LPUB8 stub_PCLglyphID2Ptr(IF_STATE *pIFS, UW16 glyphID)
44 {   return NULL;
45 }
46 
47 /*
48     The following 3 variables are defined statically until the
49     reentrancy of graphics library is fixed.
50     Also we are waiting for Agfa to fix the reentrancy of UFST callback PCLEO_charptr.
51  */
52 
53 private LPUB8 (*m_PCLEO_charptr)(LPUB8 pfont_hdr, UW16  sym_code) = stub_PCLEO_charptr;
54 private LPUB8 (*m_PCLchId2ptr)(IF_STATE *pIFS, UW16 chId) = stub_PCLchId2ptr;
55 private LPUB8 (*m_PCLglyphID2Ptr)(IF_STATE *pIFS, UW16 glyphID) = stub_PCLglyphID2Ptr;
56 
57 
PCLEO_charptr(LPUB8 pfont_hdr,UW16 sym_code)58 LPUB8 PCLEO_charptr(LPUB8 pfont_hdr, UW16  sym_code)
59 {   return m_PCLEO_charptr(pfont_hdr, sym_code);
60 }
61 
PCLchId2ptr(IF_STATE * pIFS,UW16 chId)62 LPUB8 PCLchId2ptr(IF_STATE *pIFS, UW16 chId)
63 {   return m_PCLchId2ptr(FSA chId);
64 }
65 
PCLglyphID2Ptr(IF_STATE * pIFS,UW16 glyphID)66 LPUB8 PCLglyphID2Ptr(IF_STATE *pIFS, UW16 glyphID)
67 {   return m_PCLglyphID2Ptr(FSA glyphID);
68 }
69 
gx_set_UFST_Callbacks(LPUB8 (* p_PCLEO_charptr)(LPUB8 pfont_hdr,UW16 sym_code),LPUB8 (* p_PCLchId2ptr)(IF_STATE * pIFS,UW16 chId),LPUB8 (* p_PCLglyphID2Ptr)(IF_STATE * pIFS,UW16 glyphID))70 void gx_set_UFST_Callbacks(LPUB8 (*p_PCLEO_charptr)(LPUB8 pfont_hdr, UW16  sym_code),
71                            LPUB8 (*p_PCLchId2ptr)(IF_STATE *pIFS, UW16 chId),
72                            LPUB8 (*p_PCLglyphID2Ptr)(IF_STATE *pIFS, UW16 glyphID))
73 {   m_PCLEO_charptr = p_PCLEO_charptr;
74     m_PCLchId2ptr = p_PCLchId2ptr;
75     m_PCLglyphID2Ptr = p_PCLglyphID2Ptr;
76 }
77 
gx_reset_UFST_Callbacks()78 void gx_reset_UFST_Callbacks()
79 {   m_PCLEO_charptr = stub_PCLEO_charptr;
80     m_PCLchId2ptr = stub_PCLchId2ptr;
81     m_PCLglyphID2Ptr = stub_PCLglyphID2Ptr;
82 }
83