Import the SCI engine sources from the FreeSCI Glutton branch (it doesn't compile yet)

svn-id: r38192

1 files changed, 675 insertions, 0 deletions

diff --git a/engines/sci/tools/bdf.h b/engines/sci/tools/bdf.h
new file mode 100644
index 0000000000..b9895c985f
--- /dev/null
+++ b/engines/sci/tools/bdf.h
@@ -0,0 +1,675 @@
+/*
+ * Copyright 2001 Computing Research Labs, New Mexico State University
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
+ * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef _h_bdf
+#define _h_bdf
+
+/*
+ * $Id: bdf.h 1284 2004-04-02 07:42:44Z jameson $
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#ifndef __digital__
+#include <unistd.h>
+#endif
+#include <string.h>
+
+#ifdef HAVE_XLIB
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/Xatom.h>
+#endif /* HAVE_XLIB */
+
+#ifdef HAVE_FREETYPE
+#include <freetype.h>
+#include <ftxsbit.h>
+#endif /* HAVE_FREETYPE */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * A macro for prototypes.
+ */
+#undef __
+#ifdef __STDC__
+#define __(x) x
+#else
+#define __(x) ()
+#endif
+
+/**************************************************************************
+ *
+ * BDF font options macros and types.
+ *
+ **************************************************************************/
+
+#define BDF_UNIX_EOL 1           /* Save fonts with Unix LF.              */
+#define BDF_DOS_EOL  2           /* Save fonts with DOS CRLF.             */
+#define BDF_MAC_EOL  3           /* Save fonts with Mac CR.               */
+
+#define BDF_CORRECT_METRICS 0x01 /* Correct invalid metrics when loading. */
+#define BDF_KEEP_COMMENTS   0x02 /* Preserve the font comments.           */
+#define BDF_KEEP_UNENCODED  0x04 /* Keep the unencoded glyphs.            */
+#define BDF_PROPORTIONAL    0x08 /* Font has proportional spacing.        */
+#define BDF_MONOWIDTH       0x10 /* Font has mono width.                  */
+#define BDF_CHARCELL        0x20 /* Font has charcell spacing.            */
+
+#define BDF_ALL_SPACING (BDF_PROPORTIONAL|BDF_MONOWIDTH|BDF_CHARCELL)
+
+#define BDF_DEFAULT_LOAD_OPTIONS \
+    (BDF_CORRECT_METRICS|BDF_KEEP_COMMENTS|BDF_KEEP_UNENCODED|BDF_PROPORTIONAL)
+
+typedef struct {
+    int ttf_hint;
+    int correct_metrics;
+    int keep_unencoded;
+    int keep_comments;
+    int pad_cells;
+    int font_spacing;
+    long point_size;
+    unsigned long resolution_x;
+    unsigned long resolution_y;
+    int bits_per_pixel;
+    int eol;
+} bdf_options_t;
+
+/*
+ * Callback function type for unknown configuration options.
+ */
+typedef int (*bdf_options_callback_t) __((bdf_options_t *opts,
+                                          char **params,
+                                          unsigned long nparams,
+                                          void *client_data));
+
+/**************************************************************************
+ *
+ * BDF font property macros and types.
+ *
+ **************************************************************************/
+
+#define BDF_ATOM     1
+#define BDF_INTEGER  2
+#define BDF_CARDINAL 3
+
+/*
+ * This structure represents a particular property of a font.
+ * There are a set of defaults and each font has their own.
+ */
+typedef struct {
+    char *name;         /* Name of the property.                        */
+    int format;         /* Format of the property.                      */
+    int builtin;        /* A builtin property.                          */
+    union {
+        char *atom;
+        long int32;
+        unsigned long card32;
+    } value;            /* Value of the property.                       */
+} bdf_property_t;
+
+/**************************************************************************
+ *
+ * SBIT metrics specific structures.
+ *
+ **************************************************************************/
+
+/*
+ * Boolean flags for SBIT metrics files.
+ */
+#define BDF_SBIT_MONO_ADVANCE 0x0001
+#define BDF_SBIT_ADD_EBLC     0x0002
+#define BDF_SBIT_APPLE_COMPAT 0x0004
+
+/*
+ * Direction macros (inclusive, can be combined).
+ */
+#define BDF_SBIT_HORIZONTAL   0x0008
+#define BDF_SBIT_VERTICAL     0x0010
+
+/*
+ * Bitmap storage options (exclusive, cannot be combined).
+ */
+#define BDF_SBIT_STORE_SMALL  0x0020
+#define BDF_SBIT_STORE_FAST   0x0040
+
+typedef struct {
+    short cnum;         /* Caret slope numerator.                       */
+    short cdenom;       /* Caret slope denominator.                     */
+    short coff;         /* Caret offset.                                */
+    short sx;           /* Scaled version horizontal PPEM size.         */
+    short sy;           /* Scaled version vertical PPEM size (optional).*/
+    short flags;        /* Booleans and other non-numeric values.       */
+} bdf_sbit_t;
+
+/**************************************************************************
+ *
+ * BDF opaque undo information types.
+ *
+ **************************************************************************/
+
+typedef struct _bdf_undo_struct *bdf_undo_t;
+
+/**************************************************************************
+ *
+ * BDF font metric and glyph types.
+ *
+ **************************************************************************/
+
+/*
+ * A general bitmap type, mostly used when the glyph bitmap is being edited.
+ */
+typedef struct {
+    short x;
+    short y;
+    unsigned short width;
+    unsigned short height;
+    unsigned short bpp;
+    unsigned short pad;
+    unsigned char *bitmap;
+    unsigned long bytes;
+} bdf_bitmap_t;
+
+typedef struct {
+    int font_spacing;
+    unsigned short swidth;
+    unsigned short dwidth;
+    unsigned short width;
+    unsigned short height;
+    short x_offset;
+    short y_offset;
+    short ascent;
+    short descent;
+} bdf_metrics_t;
+
+typedef struct {
+    unsigned short width;
+    unsigned short height;
+    short x_offset;
+    short y_offset;
+    short ascent;
+    short descent;
+} bdf_bbx_t;
+
+typedef struct {
+    char *name;                 /* Glyph name.                          */
+    long encoding;              /* Glyph encoding.                      */
+    unsigned short swidth;      /* Scalable width.                      */
+    unsigned short dwidth;      /* Device width.                        */
+    bdf_bbx_t bbx;              /* Glyph bounding box.                  */
+    unsigned char *bitmap;      /* Glyph bitmap.                        */
+    unsigned short bytes;       /* Number of bytes used for the bitmap. */
+} bdf_glyph_t;
+
+typedef struct {
+    unsigned short pad;         /* Pad to 4-byte boundary.              */
+    unsigned short bpp;         /* Bits per pixel.                      */
+    long start;                 /* Beginning encoding value of glyphs.  */
+    long end;                   /* Ending encoding value of glyphs.     */
+    bdf_glyph_t *glyphs;        /* Glyphs themselves.                   */
+    unsigned long glyphs_size;  /* Glyph structures allocated.          */
+    unsigned long glyphs_used;  /* Glyph structures used.               */
+    bdf_bbx_t bbx;              /* Overall bounding box of glyphs.      */
+} bdf_glyphlist_t;
+
+typedef struct {
+    char *name;                 /* Name of the font.                     */
+    bdf_bbx_t bbx;              /* Font bounding box.                    */
+
+    long point_size;            /* Point size of the font.               */
+    unsigned long resolution_x; /* Font horizontal resolution.           */
+    unsigned long resolution_y; /* Font vertical resolution.             */
+
+    int hbf;                    /* Font came from an HBF font.           */
+
+    int spacing;                /* Font spacing value.                   */
+
+    unsigned short monowidth;   /* Logical width for monowidth font.     */
+
+    long default_glyph;         /* Encoding of the default glyph.        */
+
+    long font_ascent;           /* Font ascent.                          */
+    long font_descent;          /* Font descent.                         */
+
+    long glyphs_size;           /* Glyph structures allocated.           */
+    long glyphs_used;           /* Glyph structures used.                */
+    bdf_glyph_t *glyphs;        /* Glyphs themselves.                    */
+
+    long unencoded_size;        /* Unencoded glyph structures allocated. */
+    long unencoded_used;        /* Unencoded glyph structures used.      */
+    bdf_glyph_t *unencoded;     /* Unencoded glyphs themselves.          */
+
+    unsigned long props_size;   /* Font properties allocated.            */
+    unsigned long props_used;   /* Font properties used.                 */
+    bdf_property_t *props;      /* Font properties themselves.           */
+
+    char *comments;             /* Font comments.                        */
+    unsigned long comments_len; /* Length of comment string.             */
+
+    char *acmsgs;               /* Auto-correction messages.             */
+    unsigned long acmsgs_len;   /* Length of auto-correction messages.   */
+
+    bdf_glyphlist_t overflow;   /* Storage used for glyph insertion.     */
+
+    void *internal;             /* Internal data for the font.           */
+
+    unsigned long nmod[2048];   /* Bitmap indicating modified glyphs.    */
+    unsigned long umod[2048];   /* Bitmap indicating modified unencoded. */
+
+    unsigned short modified;    /* Boolean indicating font modified.     */
+    unsigned short bpp;         /* Bits per pixel.                       */
+
+    bdf_sbit_t *sbits;          /* Associcated SBIT metrics.             */
+    unsigned long sbits_used;   /* Number of SBIT metrics entries.       */
+    unsigned long sbits_size;   /* Amount of entries allocated.          */
+
+    bdf_undo_t *undo_stack;     /* Record of undoable operations.        */
+    unsigned long undo_used;    /* Amount of undo stack used.            */
+    unsigned long undo_size;    /* Amount of undo stack allocated.       */
+} bdf_font_t;
+
+/**************************************************************************
+ *
+ * BDF glyph grid structures for editing glyph bitmaps.
+ *
+ **************************************************************************/
+
+typedef struct {
+    char *name;
+    long encoding;              /* The glyph encoding.                  */
+    unsigned short unencoded;   /* Whether the glyph was unencoded.     */
+    unsigned short bpp;         /* Bits per pixel.                      */
+    int spacing;                /* Font spacing.                        */
+    long resolution_x;          /* Horizontal resolution.               */
+    long resolution_y;          /* Vertical resolution.                 */
+    unsigned long point_size;   /* Font point size.                     */
+    unsigned short swidth;      /* Scalable width.                      */
+    unsigned short dwidth;      /* Device width.                        */
+    bdf_bbx_t font_bbx;         /* Font bounding box.                   */
+    bdf_bbx_t glyph_bbx;        /* Glyph bounding box.                  */
+    unsigned char *bitmap;      /* The grid bitmap.                     */
+    unsigned short bytes;       /* Number of bytes in the grid bitmap.  */
+    short grid_width;           /* Width of the grid.                   */
+    short grid_height;          /* Height of the grid.                  */
+    short base_x;               /* Baseline X coordinate.               */
+    short base_y;               /* Baseline Y coordinate.               */
+    short glyph_x;              /* Top-left X position of glyph.        */
+    short glyph_y;              /* Top-left Y position of glyph.        */
+    unsigned short modified;    /* Flag indicating if bitmap modified.  */
+    short cap_height;           /* Font CAP_HEIGHT if it exists.        */
+    short x_height;             /* Font X_HEIGHT if it exists.          */
+    bdf_bitmap_t sel;           /* Selected portion of the glyph bitmap.*/
+} bdf_glyph_grid_t;
+
+/**************************************************************************
+ *
+ * Types for load/save callbacks.
+ *
+ **************************************************************************/
+
+/*
+ * Callback reasons.
+ */
+#define BDF_LOAD_START       1
+#define BDF_LOADING          2
+#define BDF_SAVE_START       3
+#define BDF_SAVING           4
+#define BDF_TRANSLATE_START  5
+#define BDF_TRANSLATING      6
+#define BDF_ROTATE_START     7
+#define BDF_ROTATING         8
+#define BDF_SHEAR_START      9
+#define BDF_SHEARING         10
+#define BDF_GLYPH_NAME_START 11
+#define BDF_GLYPH_NAME       12
+#define BDF_EXPORT_START     13
+#define BDF_EXPORTING        14
+#define BDF_EMBOLDEN_START   15
+#define BDF_EMBOLDENING      16
+#define BDF_WARNING          20
+#define BDF_ERROR            21
+
+/*
+ * Error codes.
+ */
+#define BDF_OK                 0
+#define BDF_MISSING_START     -1
+#define BDF_MISSING_FONTNAME  -2
+#define BDF_MISSING_SIZE      -3
+#define BDF_MISSING_FONTBBX   -4
+#define BDF_MISSING_CHARS     -5
+#define BDF_MISSING_STARTCHAR -6
+#define BDF_MISSING_ENCODING  -7
+#define BDF_MISSING_BBX       -8
+
+#define BDF_NOT_CONSOLE_FONT  -10
+#define BDF_NOT_MF_FONT       -11
+#define BDF_NOT_PSF_FONT      -12
+#define BDF_EMPTY_FONT        -99
+#define BDF_INVALID_LINE      -100
+
+typedef struct {
+    unsigned long reason;
+    unsigned long current;
+    unsigned long total;
+    unsigned long errlineno;
+} bdf_callback_struct_t;
+
+typedef void (*bdf_callback_t) __((bdf_callback_struct_t *call_data,
+                                   void *client_data));
+
+/**************************************************************************
+ *
+ * BDF font API.
+ *
+ **************************************************************************/
+
+/*
+ * Startup and shutdown functions.
+ */
+extern void bdf_setup __((void));
+extern void bdf_cleanup __((void));
+
+/*
+ * Configuration file loading and saving.
+ */
+extern void bdf_load_options __((FILE *in, bdf_options_t *opts,
+                                 bdf_options_callback_t callback,
+                                 void *client_data));
+extern void bdf_save_options __((FILE *out, bdf_options_t *opts));
+
+/*
+ * Font options functions.
+ */
+extern void bdf_default_options __((bdf_options_t *opts));
+
+/*
+ * Font load, create, save and free functions.
+ */
+extern bdf_font_t *bdf_new_font __((char *name, long point_size,
+                                    long resolution_x, long resolution_y,
+                                    long spacing, int bpp));
+extern bdf_font_t *bdf_load_font __((FILE *in, bdf_options_t *opts,
+                                     bdf_callback_t callback, void *data));
+extern bdf_font_t *bdf_load_hbf_font __((char *filename, bdf_options_t *opts,
+                                         bdf_callback_t callback, void *data));
+
+#ifdef HAVE_XLIB
+extern bdf_font_t *bdf_load_server_font __((Display *d, XFontStruct *f,
+                                            char *name, bdf_options_t *opts,
+                                            bdf_callback_t callback,
+                                            void *data));
+#endif /* HAVE_XLIB */
+
+extern int bdf_load_console_font __((FILE *in, bdf_options_t *opts,
+                                     bdf_callback_t callback, void *data,
+                                     bdf_font_t *fonts[3], int *nfonts));
+
+extern int bdf_load_mf_font __((FILE *in, bdf_options_t *opts,
+                                bdf_callback_t callback, void *data,
+                                bdf_font_t **font));
+
+extern void bdf_save_font __((FILE *out, bdf_font_t *font,
+                              bdf_options_t *opts, bdf_callback_t callback,
+                              void *data));
+
+extern void bdf_save_sbit_metrics __((FILE *out, bdf_font_t *font,
+                                      bdf_options_t *opts, char *appname));
+
+extern void bdf_export_hex __((FILE *out, bdf_font_t *font,
+                               bdf_callback_t callback, void *data));
+
+extern int bdf_export_psf __((FILE *out, bdf_font_t *font));
+
+extern void bdf_free_font __((bdf_font_t *font));
+
+#ifdef HAVE_FREETYPE
+
+/*
+ * TrueType related macros and functions.
+ */
+
+/*
+ * ID numbers of the strings that can appear in a TrueType font.
+ */
+#define BDFTTF_COPYRIGHT_STRING  0
+#define BDFTTF_FAMILY_STRING     1
+#define BDFTTF_SUBFAMILY_STRING  2
+#define BDFTTF_UNIQUEID_STRING   3
+#define BDFTTF_FULLNAME_STRING   4
+#define BDFTTF_VENDOR_STRING     5
+#define BDFTTF_POSTSCRIPT_STRING 6
+#define BDFTTF_TRADEMARK_STRING  7
+
+extern char *bdfttf_platform_name __((short pid));
+extern char *bdfttf_encoding_name __((short pid, short eid));
+extern int bdfttf_get_english_string __((TT_Face face, int nameID,
+                                         int dash_to_space, char *name));
+
+extern int bdfttf_load_font __((TT_Face face, TT_Face_Properties *properties,
+                                short pid, short eid, bdf_options_t *opts,
+                                bdf_callback_t callback, void *data,
+                                bdf_font_t **font));
+
+#endif /* HAVE_FREETYPE */
+
+/*
+ * FON/FNT related functions.
+ */
+
+/*
+ * String ID numbers for FON/FNT fonts.
+ */
+#define BDFFNT_COPYRIGHT 1
+#define BDFFNT_TYPEFACE  2
+
+/*
+ * Opaque font type.
+ */
+typedef struct _bdffnt_font_t *bdffnt_font_t;
+
+extern int bdffnt_open_font __((char *path, bdffnt_font_t *font));
+extern void bdffnt_close_font __((bdffnt_font_t font));
+extern int bdffnt_font_count __((bdffnt_font_t font));
+extern int bdffnt_get_copyright __((bdffnt_font_t font, unsigned long fontID,
+                                    unsigned char *string));
+extern int bdffnt_get_facename __((bdffnt_font_t font, unsigned long fontID,
+                                   int for_xlfd, unsigned char *string));
+extern int bdffnt_char_count __((bdffnt_font_t font, unsigned long fontID));
+extern int bdffnt_font_pointsize __((bdffnt_font_t font,
+                                     unsigned long fontID));
+extern int bdffnt_load_font __((bdffnt_font_t font, unsigned long fontID,
+                                bdf_callback_t callback, void *data,
+                                bdf_font_t **out));
+
+/*
+ * Font property functions.
+ */
+extern void bdf_create_property __((char *name, int type));
+extern bdf_property_t *bdf_get_property __((char *name));
+extern unsigned long bdf_property_list __((bdf_property_t **props));
+
+extern void bdf_add_font_property __((bdf_font_t *font,
+                                      bdf_property_t *property));
+extern void bdf_delete_font_property __((bdf_font_t *font, char *name));
+extern bdf_property_t *bdf_get_font_property __((bdf_font_t *font,
+                                                 const char *name));
+extern unsigned long bdf_font_property_list __((bdf_font_t *font,
+                                                bdf_property_t **props));
+
+/*
+ * Font comment functions.
+ */
+extern int bdf_replace_comments __((bdf_font_t *font, char *comments,
+                                    unsigned long comments_len));
+
+/*
+ * Other miscellaneous functions.
+ */
+extern void bdf_set_default_metrics __((bdf_font_t *font));
+
+/*
+ * Font glyph editing functions.
+ */
+extern int bdf_glyph_modified __((bdf_font_t *font, long which,
+                                  int unencoded));
+
+extern void bdf_copy_glyphs __((bdf_font_t *font, long start, long end,
+                                bdf_glyphlist_t *glyphs, int unencoded));
+
+extern void bdf_delete_glyphs __((bdf_font_t *font, long start, long end,
+                                  int unencoded));
+
+extern int bdf_insert_glyphs __((bdf_font_t *font, long start,
+                                 bdf_glyphlist_t *glyphs));
+
+extern int bdf_replace_glyphs __((bdf_font_t *font, long start,
+                                  bdf_glyphlist_t *glyphs, int unencoded));
+
+extern int bdf_merge_glyphs __((bdf_font_t *font, long start,
+                                bdf_glyphlist_t *glyphs, int unencoded));
+
+/**************************************************************************
+ *
+ * Other API functions.
+ *
+ **************************************************************************/
+
+extern int bdf_set_font_bbx __((bdf_font_t *font, bdf_metrics_t *metrics));
+
+extern void bdf_set_modified __((bdf_font_t *font, int modified));
+
+extern int bdf_has_xlfd_name __((bdf_font_t *font));
+
+extern char *bdf_make_xlfd_name __((bdf_font_t *font, char *foundry,
+                                    char *family));
+
+extern void bdf_update_name_from_properties __((bdf_font_t *font));
+
+extern void bdf_update_properties_from_name __((bdf_font_t *font));
+
+extern int bdf_update_average_width __((bdf_font_t *font));
+
+extern int bdf_set_unicode_glyph_names __((FILE *in, bdf_font_t *font,
+                                           bdf_callback_t callback));
+
+extern int bdf_set_adobe_glyph_names __((FILE *in, bdf_font_t *font,
+                                         bdf_callback_t callback));
+
+extern int bdf_set_glyph_code_names __((int prefix, bdf_font_t *font,
+                                        bdf_callback_t callback));
+
+/**************************************************************************
+ *
+ * Glyph grid API.
+ *
+ **************************************************************************/
+
+/*
+ * Glyph grid allocation and deallocation functions.
+ */
+extern bdf_glyph_grid_t *bdf_make_glyph_grid __((bdf_font_t *font,
+                                                 long code,
+                                                 int unencoded));
+extern void bdf_free_glyph_grid __((bdf_glyph_grid_t *grid));
+
+/*
+ * Glyph grid information functions.
+ */
+extern void bdf_grid_image __((bdf_glyph_grid_t *grid, bdf_bitmap_t *image));
+extern void bdf_grid_origin __((bdf_glyph_grid_t *grid, short *x, short *y));
+extern bdf_glyph_t *bdf_grid_glyph __((bdf_glyph_grid_t *grid));
+
+/*
+ * Glyph grid editing functions.
+ */
+extern int bdf_grid_enlarge __((bdf_glyph_grid_t *grid, unsigned short width,
+                                unsigned short height));
+extern int bdf_grid_resize __((bdf_glyph_grid_t *grid,
+                               bdf_metrics_t *metrics));
+extern int bdf_grid_crop __((bdf_glyph_grid_t *grid, int grid_modified));
+
+extern int bdf_grid_set_pixel __((bdf_glyph_grid_t *grid, short x, short y,
+                                  int val));
+extern int bdf_grid_clear_pixel __((bdf_glyph_grid_t *grid, short x, short y));
+extern int bdf_grid_invert_pixel __((bdf_glyph_grid_t *grid,
+                                     short x, short y, int val));
+extern int bdf_grid_shift __((bdf_glyph_grid_t *grid, short xcount,
+                              short ycount));
+extern int bdf_grid_flip __((bdf_glyph_grid_t *grid, short dir));
+extern int bdf_grid_rotate __((bdf_glyph_grid_t *grid, short degrees,
+                               int *resize));
+extern int bdf_grid_shear __((bdf_glyph_grid_t *grid, short degrees,
+                              int *resize));
+extern int bdf_grid_embolden __((bdf_glyph_grid_t *grid));
+
+/*
+ * Glyph grid selection functions.
+ */
+extern int bdf_has_selection __((bdf_glyph_grid_t *grid, short *x, short *y,
+                                 short *width, short *height));
+extern void bdf_set_selection __((bdf_glyph_grid_t *grid, short x, short y,
+                                  short width, short height));
+extern void bdf_lose_selection __((bdf_glyph_grid_t *grid));
+extern void bdf_detach_selection __((bdf_glyph_grid_t *grid));
+extern void bdf_attach_selection __((bdf_glyph_grid_t *grid));
+extern void bdf_delete_selection __((bdf_glyph_grid_t *grid));
+extern int bdf_in_selection __((bdf_glyph_grid_t *grid, short x, short y,
+                                short *set));
+extern void bdf_add_selection __((bdf_glyph_grid_t *grid, bdf_bitmap_t *sel));
+
+/*
+ * Glyph grid misc functions.
+ */
+extern int bdf_grid_color_at __((bdf_glyph_grid_t *grid, short x, short y));
+
+/*
+ * Graphical transformation functions.
+ */
+extern int bdf_translate_glyphs __((bdf_font_t *font, short dx, short dy,
+                                    long start, long end,
+                                    bdf_callback_t callback, void *data,
+                                    int unencoded));
+
+extern int bdf_rotate_glyphs __((bdf_font_t *font, short degrees,
+                                 long start, long end,
+                                 bdf_callback_t callback, void *data,
+                                 int unencoded));
+
+extern int bdf_shear_glyphs __((bdf_font_t *font, short degrees,
+                                long start, long end,
+                                bdf_callback_t callback, void *data,
+                                int unencoded));
+
+extern int bdf_embolden_glyphs __((bdf_font_t *font, long start, long end,
+                                   bdf_callback_t callback, void *data,
+                                   int unencoded, int *resize));
+
+extern int bdf_little_endian __((void));
+
+#undef __
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _h_bdf */