Update freetype sources (2.6.2) in third party.

third_party/freetype2/src/src/psaux/t1cmap.c

Index: third_party/freetype2/src/src/psaux/t1cmap.c
diff --git a/third_party/freetype2/src/src/psaux/t1cmap.c b/third_party/freetype2/src/src/psaux/t1cmap.c
new file mode 100644
index 0000000000000000000000000000000000000000..2e2d433fc498b36a9818d9c5dd2a37ea4806009f
--- /dev/null
+++ b/third_party/freetype2/src/src/psaux/t1cmap.c
@@ -0,0 +1,355 @@
+/***************************************************************************/
+/*                                                                         */
+/*  t1cmap.c                                                               */
+/*                                                                         */
+/*    Type 1 character map support (body).                                 */
+/*                                                                         */
+/*  Copyright 2002-2015 by                                                 */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#include "t1cmap.h"
+
+#include FT_INTERNAL_DEBUG_H
+
+#include "psauxerr.h"
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****          TYPE1 STANDARD (AND EXPERT) ENCODING CMAPS           *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  static void
+  t1_cmap_std_init( T1_CMapStd  cmap,
+                    FT_Int      is_expert )
+  {
+    T1_Face             face    = (T1_Face)FT_CMAP_FACE( cmap );
+    FT_Service_PsCMaps  psnames = (FT_Service_PsCMaps)face->psnames;
+
+
+    cmap->num_glyphs    = (FT_UInt)face->type1.num_glyphs;
+    cmap->glyph_names   = (const char* const*)face->type1.glyph_names;
+    cmap->sid_to_string = psnames->adobe_std_strings;
+    cmap->code_to_sid   = is_expert ? psnames->adobe_expert_encoding
+                                    : psnames->adobe_std_encoding;
+
+    FT_ASSERT( cmap->code_to_sid != NULL );
+  }
+
+
+  FT_CALLBACK_DEF( void )
+  t1_cmap_std_done( T1_CMapStd  cmap )
+  {
+    cmap->num_glyphs    = 0;
+    cmap->glyph_names   = NULL;
+    cmap->sid_to_string = NULL;
+    cmap->code_to_sid   = NULL;
+  }
+
+
+  FT_CALLBACK_DEF( FT_UInt )
+  t1_cmap_std_char_index( T1_CMapStd  cmap,
+                          FT_UInt32   char_code )
+  {
+    FT_UInt  result = 0;
+
+
+    if ( char_code < 256 )
+    {
+      FT_UInt      code, n;
+      const char*  glyph_name;
+
+
+      /* convert character code to Adobe SID string */
+      code       = cmap->code_to_sid[char_code];
+      glyph_name = cmap->sid_to_string( code );
+
+      /* look for the corresponding glyph name */
+      for ( n = 0; n < cmap->num_glyphs; n++ )
+      {
+        const char* gname = cmap->glyph_names[n];
+
+
+        if ( gname && gname[0] == glyph_name[0]  &&
+             ft_strcmp( gname, glyph_name ) == 0 )
+        {
+          result = n;
+          break;
+        }
+      }
+    }
+
+    return result;
+  }
+
+
+  FT_CALLBACK_DEF( FT_UInt32 )
+  t1_cmap_std_char_next( T1_CMapStd   cmap,
+                         FT_UInt32   *pchar_code )
+  {
+    FT_UInt    result    = 0;
+    FT_UInt32  char_code = *pchar_code + 1;
+
+
+    while ( char_code < 256 )
+    {
+      result = t1_cmap_std_char_index( cmap, char_code );
+      if ( result != 0 )
+        goto Exit;
+
+      char_code++;
+    }
+    char_code = 0;
+
+  Exit:
+    *pchar_code = char_code;
+    return result;
+  }
+
+
+  FT_CALLBACK_DEF( FT_Error )
+  t1_cmap_standard_init( T1_CMapStd  cmap,
+                         FT_Pointer  pointer )
+  {
+    FT_UNUSED( pointer );
+
+
+    t1_cmap_std_init( cmap, 0 );
+    return 0;
+  }
+
+
+  FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec
+  t1_cmap_standard_class_rec =
+  {
+    sizeof ( T1_CMapStdRec ),
+
+    (FT_CMap_InitFunc)     t1_cmap_standard_init,
+    (FT_CMap_DoneFunc)     t1_cmap_std_done,
+    (FT_CMap_CharIndexFunc)t1_cmap_std_char_index,
+    (FT_CMap_CharNextFunc) t1_cmap_std_char_next,
+
+    NULL, NULL, NULL, NULL, NULL
+  };
+
+
+  FT_CALLBACK_DEF( FT_Error )
+  t1_cmap_expert_init( T1_CMapStd  cmap,
+                       FT_Pointer  pointer )
+  {
+    FT_UNUSED( pointer );
+
+
+    t1_cmap_std_init( cmap, 1 );
+    return 0;
+  }
+
+  FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec
+  t1_cmap_expert_class_rec =
+  {
+    sizeof ( T1_CMapStdRec ),
+
+    (FT_CMap_InitFunc)     t1_cmap_expert_init,
+    (FT_CMap_DoneFunc)     t1_cmap_std_done,
+    (FT_CMap_CharIndexFunc)t1_cmap_std_char_index,
+    (FT_CMap_CharNextFunc) t1_cmap_std_char_next,
+
+    NULL, NULL, NULL, NULL, NULL
+  };
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****                    TYPE1 CUSTOM ENCODING CMAP                 *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+
+  FT_CALLBACK_DEF( FT_Error )
+  t1_cmap_custom_init( T1_CMapCustom  cmap,
+                       FT_Pointer     pointer )
+  {
+    T1_Face      face     = (T1_Face)FT_CMAP_FACE( cmap );
+    T1_Encoding  encoding = &face->type1.encoding;
+
+    FT_UNUSED( pointer );
+
+
+    cmap->first   = (FT_UInt)encoding->code_first;
+    cmap->count   = (FT_UInt)encoding->code_last - cmap->first;
+    cmap->indices = encoding->char_index;
+
+    FT_ASSERT( cmap->indices != NULL );
+    FT_ASSERT( encoding->code_first <= encoding->code_last );
+
+    return 0;
+  }
+
+
+  FT_CALLBACK_DEF( void )
+  t1_cmap_custom_done( T1_CMapCustom  cmap )
+  {
+    cmap->indices = NULL;
+    cmap->first   = 0;
+    cmap->count   = 0;
+  }
+
+
+  FT_CALLBACK_DEF( FT_UInt )
+  t1_cmap_custom_char_index( T1_CMapCustom  cmap,
+                             FT_UInt32      char_code )
+  {
+    FT_UInt    result = 0;
+
+
+    if ( ( char_code >= cmap->first )                  &&
+         ( char_code < ( cmap->first + cmap->count ) ) )
+      result = cmap->indices[char_code];
+
+    return result;
+  }
+
+
+  FT_CALLBACK_DEF( FT_UInt32 )
+  t1_cmap_custom_char_next( T1_CMapCustom  cmap,
+                            FT_UInt32     *pchar_code )
+  {
+    FT_UInt    result = 0;
+    FT_UInt32  char_code = *pchar_code;
+
+
+    ++char_code;
+
+    if ( char_code < cmap->first )
+      char_code = cmap->first;
+
+    for ( ; char_code < ( cmap->first + cmap->count ); char_code++ )
+    {
+      result = cmap->indices[char_code];
+      if ( result != 0 )
+        goto Exit;
+    }
+
+    char_code = 0;
+
+  Exit:
+    *pchar_code = char_code;
+    return result;
+  }
+
+
+  FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec
+  t1_cmap_custom_class_rec =
+  {
+    sizeof ( T1_CMapCustomRec ),
+
+    (FT_CMap_InitFunc)     t1_cmap_custom_init,
+    (FT_CMap_DoneFunc)     t1_cmap_custom_done,
+    (FT_CMap_CharIndexFunc)t1_cmap_custom_char_index,
+    (FT_CMap_CharNextFunc) t1_cmap_custom_char_next,
+
+    NULL, NULL, NULL, NULL, NULL
+  };
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*****                                                               *****/
+  /*****            TYPE1 SYNTHETIC UNICODE ENCODING CMAP              *****/
+  /*****                                                               *****/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  FT_CALLBACK_DEF( const char * )
+  psaux_get_glyph_name( T1_Face  face,
+                        FT_UInt  idx )
+  {
+    return face->type1.glyph_names[idx];
+  }
+
+
+  FT_CALLBACK_DEF( FT_Error )
+  t1_cmap_unicode_init( PS_Unicodes  unicodes,
+                        FT_Pointer   pointer )
+  {
+    T1_Face             face    = (T1_Face)FT_CMAP_FACE( unicodes );
+    FT_Memory           memory  = FT_FACE_MEMORY( face );
+    FT_Service_PsCMaps  psnames = (FT_Service_PsCMaps)face->psnames;
+
+    FT_UNUSED( pointer );
+
+
+    return psnames->unicodes_init( memory,
+                                   unicodes,
+                                   (FT_UInt)face->type1.num_glyphs,
+                                   (PS_GetGlyphNameFunc)&psaux_get_glyph_name,
+                                   (PS_FreeGlyphNameFunc)NULL,
+                                   (FT_Pointer)face );
+  }
+
+
+  FT_CALLBACK_DEF( void )
+  t1_cmap_unicode_done( PS_Unicodes  unicodes )
+  {
+    FT_Face    face   = FT_CMAP_FACE( unicodes );
+    FT_Memory  memory = FT_FACE_MEMORY( face );
+
+
+    FT_FREE( unicodes->maps );
+    unicodes->num_maps = 0;
+  }
+
+
+  FT_CALLBACK_DEF( FT_UInt )
+  t1_cmap_unicode_char_index( PS_Unicodes  unicodes,
+                              FT_UInt32    char_code )
+  {
+    T1_Face             face    = (T1_Face)FT_CMAP_FACE( unicodes );
+    FT_Service_PsCMaps  psnames = (FT_Service_PsCMaps)face->psnames;
+
+
+    return psnames->unicodes_char_index( unicodes, char_code );
+  }
+
+
+  FT_CALLBACK_DEF( FT_UInt32 )
+  t1_cmap_unicode_char_next( PS_Unicodes  unicodes,
+                             FT_UInt32   *pchar_code )
+  {
+    T1_Face             face    = (T1_Face)FT_CMAP_FACE( unicodes );
+    FT_Service_PsCMaps  psnames = (FT_Service_PsCMaps)face->psnames;
+
+
+    return psnames->unicodes_char_next( unicodes, pchar_code );
+  }
+
+
+  FT_CALLBACK_TABLE_DEF const FT_CMap_ClassRec
+  t1_cmap_unicode_class_rec =
+  {
+    sizeof ( PS_UnicodesRec ),
+
+    (FT_CMap_InitFunc)     t1_cmap_unicode_init,
+    (FT_CMap_DoneFunc)     t1_cmap_unicode_done,
+    (FT_CMap_CharIndexFunc)t1_cmap_unicode_char_index,
+    (FT_CMap_CharNextFunc) t1_cmap_unicode_char_next,
+
+    NULL, NULL, NULL, NULL, NULL
+  };
+
+
+/* END */