1 files changed, 87 insertions, 0 deletions
diff --git a/base/gxfapiu.h b/base/gxfapiu.h
new file mode 100644
index 00000000..5903909b
--- /dev/null
+++ b/base/gxfapiu.h
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+/* Copyright (C) 2001-2019 Artifex Software, Inc.
+   All Rights Reserved.
+
+   This software is provided AS-IS with no warranty, either express or
+   implied.
+
+   This software is distributed under license and may not be copied,
+   modified or distributed except as expressly authorized under the terms
+   of the license contained in the file LICENSE in this distribution.
+
+   Refer to licensing information at http://www.artifex.com or contact
+   Artifex Software, Inc.,  1305 Grant Avenue - Suite 200, Novato,
+   CA 94945, U.S.A., +1(415)492-9861, for further information.
+*/
+
+
+/* Font API support : UFST callback dispatch. */
+
+#ifndef gxfapiu_INCLUDED
+#define gxfapiu_INCLUDED
+
+#include "gp.h"
+
+/* Set UFST callbacks. */
+/* Warning : the language switch project doesn't guarantee
+   that this function is called when switching
+   to another interpreter. Therefore each interpreter must take
+   care for its own callback methods before they
+   may be called by UFST.
+ */
+ /* Warning : this function may cause a reentrancy problem
+    due to a modification of static variables.
+    Nevertheless this problem isn't important in a
+    single interpreter build because the values
+    really change on the first demand only.
+    See also a comment in gs_fapiufst_finit.
+  */
+void
+gx_set_UFST_Callbacks(LPUB8(*p_PCLEO_charptr)
+                      (FSP LPUB8 pfont_hdr, UW16 sym_code),
+                      LPUB8(*p_PCLchId2ptr) (FSP UW16 chId),
+                      LPUB8(*p_PCLglyphID2Ptr) (FSP UW16 glyphID));
+
+void gx_reset_UFST_Callbacks(void);
+
+typedef struct fco_list_elem_s fco_list_elem;
+struct fco_list_elem_s
+{
+    int open_count;
+    SW16 fcHandle;
+    char *file_path;
+    fco_list_elem *next;
+};
+
+/* Access to the static FCO list for the language switching project : */
+/* For the language switch : */
+UW16 gx_UFST_open_static_fco(const char *font_file_path,
+                             SW16 * result_fcHandle);
+UW16 gx_UFST_close_static_fco(SW16 fcHandle);
+
+/* close all open FCO's */
+void gx_UFST_close_static_fcos(void);
+SW16 gx_UFST_find_fco_handle_by_name(const char *font_file_path);
+
+/* For fapiufst.c : */
+fco_list_elem *gx_UFST_find_static_fco(const char *font_file_path);
+fco_list_elem *gx_UFST_find_static_fco_handle(SW16 fcHandle);
+
+int gx_UFST_init(gs_memory_t * mem, const UB8 * ufst_root_dir);
+
+int gx_UFST_fini(void);
+
+void *FAPIU_fopen(char *path, char *mode);
+void *FAPIU_open(char *path, int mode);
+int FAPIU_fread(void *ptr, int size, int count, void *s);
+int FAPIU_read(void *s, void *ptr, int count);
+int FAPIU_fgetc(void *s);
+int FAPIU_fseek(void *s, int offset, int whence);
+int FAPIU_lseek(void *s, int offset, int whence);
+int FAPIU_frewind(void *s);
+int FAPIU_ftell(void *s);
+int FAPIU_feof(void *s);
+int FAPIU_ferror(void *s);
+int FAPIU_fclose(void *s);
+int FAPIU_close(void *s);
+
+#endif /* gxfapiu_INCLUDED */