* include/freetype/ftxf86.h, src/base/ftxf86.c: added a new API named

FT_Get_X11_Font_Format to return an X11-compatible string describing the
    font format of a given face. This was put in a new optional base source
    file, corresponding to a new public header (named FT_XFREE86_H since
    this function should only be used within the XFree86 font server IMO).

    * include/freetype/config/ftheader.h: adding FT_XFREE86_H, though it's
    not documented yet.

    * include/freetype/t1tables.h, src/base/fttype1.c: adding two new APIs
    named "FT_Get_PS_Font_Info" and "FT_Has_PS_Glyph_Names". This required
    a new optional source in 'src/base' named "fttype1.c"

    * src/base/Jamfile, src/base/rules.mk, src/base/descrip.mms: updating
    build control files for the new files "ftxf86.c" and "fttype1.c" in
    src/base

ChangeLog

@@ -1,5 +1,22 @@
 2005-05-28  David Turner  <david@freetype.org>
 
+    * include/freetype/ftxf86.h, src/base/ftxf86.c: added a new API named
+    FT_Get_X11_Font_Format to return an X11-compatible string describing the
+    font format of a given face. This was put in a new optional base source
+    file, corresponding to a new public header (named FT_XFREE86_H since
+    this function should only be used within the XFree86 font server IMO).
+
+    * include/freetype/config/ftheader.h: adding FT_XFREE86_H, though it's
+    not documented yet.
+
+    * include/freetype/t1tables.h, src/base/fttype1.c: adding two new APIs
+    named "FT_Get_PS_Font_Info" and "FT_Has_PS_Glyph_Names". This required
+    a new optional source in 'src/base' named "fttype1.c"
+
+    * src/base/Jamfile, src/base/rules.mk, src/base/descrip.mms: updating
+    build control files for the new files "ftxf86.c" and "fttype1.c" in
+    src/base
+
     * src/pshinter/pshglob.c (psh_blues_scale_zones): fixed a bug that
     prevented family blue zones substitution from hapenning correctly
 

include/freetype/config/ftheader.h

@@ -496,6 +496,8 @@
 #define FT_CACHE_INTERNAL_GLYPH_H  <freetype/cache/ftcglyph.h>
 #define FT_CACHE_INTERNAL_CACHE_H  <freetype/cache/ftccache.h>
 
+#define FT_XFREE86_H               <freetype/ftxf86.h>
+
   /* now include internal headers definitions from <freetype/internal/...> */
 
 #define  FT_INTERNAL_INTERNAL_H    <freetype/internal/internal.h>

include/freetype/ftxf86.h

@@ -0,0 +1,35 @@
+#ifndef __FT_XFREE86_H__
+#define __FT_XFREE86_H__
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+FT_BEGIN_HEADER
+
+  /* this comment is intentionally disabled for now, to prevent this       */
+  /* function from appearing in the API Reference.                         */
+
+  /*@***********************************************************************/
+  /*                                                                       */
+  /* <Function>                                                            */
+  /*    FT_Get_X11_Font_Format                                             */
+  /*                                                                       */
+  /* <Description>                                                         */
+  /*    Returns a string describing the format of a given face as a X11    */
+  /*    FONT_PROPERTY. It should only be used by FreeType 2 font backend   */
+  /*    of the XFree86 font server.                                        */
+  /*                                                                       */
+  /* <Input>                                                               */
+  /*    face :: input face handle.                                         */
+  /*                                                                       */
+  /* <Return>                                                              */
+  /*    font format string. NULL in case of error.                         */
+  /*                                                                       */
+  FT_EXPORT_DEF( const char* )
+  FT_Get_X11_Font_Format( FT_Face    face );
+
+ /* */
+
+FT_END_HEADER
+
+#endif /* __FT_XFREE86_H__ */

include/freetype/t1tables.h

@@ -186,7 +186,7 @@ FT_BEGIN_HEADER
   } T1_Blend_Flags;
 
 
-  /* backwards compatible definitions */
+  /*# backwards compatible definitions */
 #define t1_blend_underline_position   T1_BLEND_UNDERLINE_POSITION
 #define t1_blend_underline_thickness  T1_BLEND_UNDERLINE_THICKNESS
 #define t1_blend_italic_angle         T1_BLEND_ITALIC_ANGLE
@@ -321,6 +321,61 @@ FT_BEGIN_HEADER
   /* */
 
 
+ /************************************************************************
+  *
+  * @function: FT_Has_PS_Glyph_Names
+  *
+  * @description:
+  *   returns true when a given face provides reliable Postscript glyph
+  *   names. This is similar to using the @FT_HAS_GLYPH_NAMES macro, except
+  *   that certain fonts (mostly TrueType) contain incorrect glyph name
+  *   tables.
+  *
+  *   when this function returns true, the caller is sure that the glyph
+  *   names returned by @FT_Get_Glyph_Name are reliable.
+  *
+  * @input:
+  *   face  :: face handle
+  *
+  * @return:
+  *   boolean. true if glyph names are reliable
+  */
+  FT_EXPORT( FT_Int )
+  FT_Has_PS_Glyph_Names( FT_Face    face );
+
+
+ /************************************************************************
+  *
+  * @function: FT_Get_PS_Font_Info
+  *
+  * @description:
+  *   retrieve the @PS_FontInfoRec structure corresponding to a given
+  *   Postscript font.
+  *
+  * @input:
+  *   face  :: postscript face handle
+  *
+  * @output:
+  *   afont_info :: output font info structure pointer
+  *
+  * @return:
+  *   error code. 0 means success
+  *
+  * @note:
+  *   the string pointers within the font info structure are owned by
+  *   the face and don't need to be freed by the caller.
+  *
+  *   if the font's format is not Postscript-based, this function will
+  *   return the @FT_Err_Invalid_Argument error code.
+  */
+  FT_EXPORT( FT_Error )
+  FT_Get_PS_Font_Info( FT_Face          face,
+                       PS_FontInfoRec  *afont_info );
+
+ /* */
+
+
+
 FT_END_HEADER
 
 #endif /* __T1TABLES_H__ */

src/base/Jamfile

@@ -24,7 +24,7 @@ SubDirHdrs  [ FT2_SubDir  src base ] ;
 # Add the optional/replaceable files.
 #
 Library  $(FT2_LIB) : ftsystem.c ftinit.c   ftglyph.c  ftmm.c     ftbdf.c
-                      ftbbox.c   ftdebug.c  ;
+                      ftbbox.c   ftdebug.c  ftxf86.c   fttype1.c  ;
 
 # Add Macintosh-specific file to the library when necessary.
 #

src/base/descrip.mms

@@ -15,7 +15,7 @@
 
 CFLAGS=$(COMP_FLAGS)$(DEBUG)/include=([--.builds.vms],[--.include],[--.src.base])
 
-OBJS=ftbase.obj,ftinit.obj,ftglyph.obj,ftdebug.obj,ftbdf.obj,ftmm.obj
+OBJS=ftbase.obj,ftinit.obj,ftglyph.obj,ftdebug.obj,ftbdf.obj,ftmm.obj,fttype1.obj,ftxf86.obj
 
 all : $(OBJS)
         library [--.lib]freetype.olb $(OBJS)

src/base/fttype1.c

@@ -0,0 +1,74 @@
+#include <ft2build.h>
+#include FT_INTERNAL_TYPE1_TYPES_H
+#include FT_INTERNAL_OBJECTS_H
+
+ /* case a FT_Face to a T1_Face when relevant                           */
+ /* this implementation sucks, but a lot of things should change in the */
+ /* future anyway..                                                     */
+ /*                                                                     */
+  static T1_Face
+  t1_face_check_cast( FT_Face   face )
+  {
+    FT_Module  driver;
+    T1_Face    result = NULL;
+
+    if ( face && face->driver != NULL )
+    {
+      driver = (FT_Module) face->driver;
+
+      if ( driver->clazz && driver->clazz->module_name &&
+           ft_strcmp( driver->clazz->module_name, "type1" ) == 0 )
+      {
+        /* correct typecast ! */
+        result = (T1_Face) face;
+      }
+    }
+    return result;
+  }
+
+
+
+ /* documentation is in t1tables.h */
+
+  FT_EXPORT_DEF( FT_Error )
+  FT_Get_PS_Font_Info( FT_Face          face,
+                       PS_FontInfoRec*  afont_info )
+  {
+    FT_Error  error   = FT_Err_Invalid_Argument;
+    T1_Face   t1_face = t1_face_check_cast( face );
+
+    if ( t1_face != NULL )
+    {
+      *afont_info = t1_face->type1.font_info;
+      error = FT_Err_Ok;
+    }
+    return error;
+  }
+
+
+ /* XXX: bad hack, but I didn't want to change several drivers here */
+
+ /* documentation is in t1tables.h */
+
+  FT_EXPORT_DEF( FT_Int )
+  FT_Has_PS_Glyph_Names( FT_Face   face )
+  {
+    FT_Int       result = 0;
+    const char*  driver_name;
+
+    if ( face && face->driver && face->driver->root.clazz )
+    {
+      /* for now, only the type1 and cff drivers provide reliable */
+      /* glyph names...                                           */
+
+      /* we could probably hack the TrueType driver to recognize  */
+      /* certain cases where the glyph names  are most certainly  */
+      /* correct (e.g. using a 20 or 22 format 'post' table), but */
+      /* this will probably happen later... :-)                   */
+
+      driver_name = face->driver->root.clazz->module_name;
+      result      = ( ft_strcmp( driver_name, "type1" ) ||
+                      ft_strcmp( driver_name, "cff"   ) );
+    }
+    return result;
+  }

src/base/ftxf86.c

@@ -0,0 +1,56 @@
+#include <ft2build.h>
+#include FT_XFREE86_H
+#include FT_INTERNAL_OBJECTS_H
+
+ /* XXX: this really is a sad hack, but I didn't want to change every     */
+ /*      driver just to support this at the moment, since other important */
+ /*      changes are coming anyway !!                                     */
+
+  typedef struct
+  {
+    const char*  driver_name;
+    const char*  format_name;
+
+  } FT_FontFormatRec;
+
+
+  FT_EXPORT_DEF( const char* )
+  FT_Get_X11_Font_Format( FT_Face    face )
+  {
+    static const FT_FontFormatRec  font_formats[] =
+    {
+      { "type1",    "Type 1" },
+      { "truetype", "TrueType" },
+      { "bdf",      "BDF" },
+      { "pcf",      "PCF" },
+      { "type42",   "Type 42" },
+      { "cidtype1", "CID Type 1" },
+      { "cff",      "CFF" },
+      { "pfr",      "PFR" },
+      { "winfonts",   "Windows FNT" }
+    };
+
+    const char*  result = NULL;
+
+
+    if ( face && face->driver )
+    {
+      FT_Module  driver = (FT_Module) face->driver;
+
+      if ( driver->clazz && driver->clazz->module_name )
+      {
+        FT_Int  n, count = sizeof(font_formats)/sizeof(font_formats[0]);
+
+        result = driver->clazz->module_name;
+
+        for ( n = 0; n < count; n++ )
+          if ( ft_strcmp( result, font_formats[n].driver_name ) == 0 )
+          {
+            result = font_formats[n].format_name;
+            break;
+          }
+      }
+    }
+
+    return result;
+  }

src/base/rules.mk

@@ -52,6 +52,8 @@ BASE_SRC := $(BASE_)ftcalc.c   \
 BASE_EXT_SRC := $(BASE_)ftglyph.c \
                 $(BASE_)ftmm.c    \
                 $(BASE_)ftbdf.c   \
+                $(BASE_)fttype1.c \
+                $(BASE_)ftxf86.c  \
                 $(BASE_)ftbbox.c
 
 # Default extensions objects