-/***************************************************************************/
-/* */
-/* ttbdf.c */
-/* */
-/* TrueType and OpenType embedded BDF properties (body). */
-/* */
-/* Copyright 2005, 2006 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 <ft2build.h>
-#include FT_INTERNAL_DEBUG_H
-#include FT_INTERNAL_STREAM_H
-#include FT_TRUETYPE_TAGS_H
-#include "ttbdf.h"
-
-#include "sferrors.h"
-
-
-#ifdef TT_CONFIG_OPTION_BDF
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_ttbdf
-
-
- FT_LOCAL_DEF( void )
- tt_face_free_bdf_props( TT_Face face )
- {
- TT_BDF bdf = &face->bdf;
-
-
- if ( bdf->loaded )
- {
- FT_Stream stream = FT_FACE(face)->stream;
-
-
- if ( bdf->table != NULL )
- FT_FRAME_RELEASE( bdf->table );
-
- bdf->table_end = NULL;
- bdf->strings = NULL;
- bdf->strings_size = 0;
- }
- }
-
-
- static FT_Error
- tt_face_load_bdf_props( TT_Face face,
- FT_Stream stream )
- {
- TT_BDF bdf = &face->bdf;
- FT_ULong length;
- FT_Error error;
-
-
- FT_ZERO( bdf );
-
- error = tt_face_goto_table( face, TTAG_BDF, stream, &length );
- if ( error ||
- length < 8 ||
- FT_FRAME_EXTRACT( length, bdf->table ) )
- {
- error = FT_Err_Invalid_Table;
- goto Exit;
- }
-
- bdf->table_end = bdf->table + length;
-
- {
- FT_Byte* p = bdf->table;
- FT_UInt version = FT_NEXT_USHORT( p );
- FT_UInt num_strikes = FT_NEXT_USHORT( p );
- FT_UInt32 strings = FT_NEXT_ULONG ( p );
- FT_UInt count;
- FT_Byte* strike;
-
-
- if ( version != 0x0001 ||
- strings < 8 ||
- ( strings - 8 ) / 4 < num_strikes ||
- strings + 1 > length )
- {
- goto BadTable;
- }
-
- bdf->num_strikes = num_strikes;
- bdf->strings = bdf->table + strings;
- bdf->strings_size = length - strings;
-
- count = bdf->num_strikes;
- p = bdf->table + 8;
- strike = p + count * 4;
-
-
- for ( ; count > 0; count-- )
- {
- FT_UInt num_items = FT_PEEK_USHORT( p + 2 );
-
- /*
- * We don't need to check the value sets themselves, since this
- * is done later.
- */
- strike += 10 * num_items;
-
- p += 4;
- }
-
- if ( strike > bdf->strings )
- goto BadTable;
- }
-
- bdf->loaded = 1;
-
- Exit:
- return error;
-
- BadTable:
- FT_FRAME_RELEASE( bdf->table );
- FT_ZERO( bdf );
- error = FT_Err_Invalid_Table;
- goto Exit;
- }
-
-
- FT_LOCAL_DEF( FT_Error )
- tt_face_find_bdf_prop( TT_Face face,
- const char* property_name,
- BDF_PropertyRec *aprop )
- {
- TT_BDF bdf = &face->bdf;
- FT_Size size = FT_FACE(face)->size;
- FT_Error error = 0;
- FT_Byte* p;
- FT_UInt count;
- FT_Byte* strike;
- FT_UInt property_len;
-
-
- aprop->type = BDF_PROPERTY_TYPE_NONE;
-
- if ( bdf->loaded == 0 )
- {
- error = tt_face_load_bdf_props( face, FT_FACE( face )->stream );
- if ( error )
- goto Exit;
- }
-
- count = bdf->num_strikes;
- p = bdf->table + 8;
- strike = p + 4 * count;
-
- error = FT_Err_Invalid_Argument;
-
- if ( size == NULL || property_name == NULL )
- goto Exit;
-
- property_len = ft_strlen( property_name );
- if ( property_len == 0 )
- goto Exit;
-
- for ( ; count > 0; count-- )
- {
- FT_UInt _ppem = FT_NEXT_USHORT( p );
- FT_UInt _count = FT_NEXT_USHORT( p );
-
- if ( _ppem == size->metrics.y_ppem )
- {
- count = _count;
- goto FoundStrike;
- }
-
- strike += 10 * _count;
- }
- goto Exit;
-
- FoundStrike:
- p = strike;
- for ( ; count > 0; count-- )
- {
- FT_UInt type = FT_PEEK_USHORT( p + 4 );
-
- if ( ( type & 0x10 ) != 0 )
- {
- FT_UInt32 name_offset = FT_PEEK_ULONG( p );
- FT_UInt32 value = FT_PEEK_ULONG( p + 6 );
-
- /* be a bit paranoid for invalid entries here */
- if ( name_offset < bdf->strings_size &&
- property_len < bdf->strings_size - name_offset &&
- ft_strncmp( property_name,
- (const char*)bdf->strings + name_offset,
- bdf->strings_size - name_offset ) == 0 )
- {
- switch ( type & 0x0F )
- {
- case 0x00: /* string */
- case 0x01: /* atoms */
- /* check that the content is really 0-terminated */
- if ( value < bdf->strings_size &&
- ft_memchr( bdf->strings + value, 0, bdf->strings_size ) )
- {
- aprop->type = BDF_PROPERTY_TYPE_ATOM;
- aprop->u.atom = (const char*)bdf->strings + value;
- error = 0;
- goto Exit;
- }
- break;
-
- case 0x02:
- aprop->type = BDF_PROPERTY_TYPE_INTEGER;
- aprop->u.integer = (FT_Int32)value;
- error = 0;
- goto Exit;
-
- case 0x03:
- aprop->type = BDF_PROPERTY_TYPE_CARDINAL;
- aprop->u.cardinal = value;
- error = 0;
- goto Exit;
-
- default:
- ;
- }
- }
- }
- p += 10;
- }
-
- Exit:
- return error;
- }
-
-#endif /* TT_CONFIG_OPTION_BDF */
-
-
-/* END */
+/***************************************************************************/\r
+/* */\r
+/* ttbdf.c */\r
+/* */\r
+/* TrueType and OpenType embedded BDF properties (body). */\r
+/* */\r
+/* Copyright 2005, 2006 by */\r
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */\r
+/* */\r
+/* This file is part of the FreeType project, and may only be used, */\r
+/* modified, and distributed under the terms of the FreeType project */\r
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */\r
+/* this file you indicate that you have read the license and */\r
+/* understand and accept it fully. */\r
+/* */\r
+/***************************************************************************/\r
+\r
+\r
+#include <ft2build.h>\r
+#include FT_INTERNAL_DEBUG_H\r
+#include FT_INTERNAL_STREAM_H\r
+#include FT_TRUETYPE_TAGS_H\r
+#include "ttbdf.h"\r
+\r
+#include "sferrors.h"\r
+\r
+\r
+#ifdef TT_CONFIG_OPTION_BDF\r
+\r
+ /*************************************************************************/\r
+ /* */\r
+ /* The macro FT_COMPONENT is used in trace mode. It is an implicit */\r
+ /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */\r
+ /* messages during execution. */\r
+ /* */\r
+#undef FT_COMPONENT\r
+#define FT_COMPONENT trace_ttbdf\r
+\r
+\r
+ FT_LOCAL_DEF( void )\r
+ tt_face_free_bdf_props( TT_Face face )\r
+ {\r
+ TT_BDF bdf = &face->bdf;\r
+\r
+\r
+ if ( bdf->loaded )\r
+ {\r
+ FT_Stream stream = FT_FACE(face)->stream;\r
+\r
+\r
+ if ( bdf->table != NULL )\r
+ FT_FRAME_RELEASE( bdf->table );\r
+\r
+ bdf->table_end = NULL;\r
+ bdf->strings = NULL;\r
+ bdf->strings_size = 0;\r
+ }\r
+ }\r
+\r
+\r
+ static FT_Error\r
+ tt_face_load_bdf_props( TT_Face face,\r
+ FT_Stream stream )\r
+ {\r
+ TT_BDF bdf = &face->bdf;\r
+ FT_ULong length;\r
+ FT_Error error;\r
+\r
+\r
+ FT_ZERO( bdf );\r
+\r
+ error = tt_face_goto_table( face, TTAG_BDF, stream, &length );\r
+ if ( error ||\r
+ length < 8 ||\r
+ FT_FRAME_EXTRACT( length, bdf->table ) )\r
+ {\r
+ error = FT_Err_Invalid_Table;\r
+ goto Exit;\r
+ }\r
+\r
+ bdf->table_end = bdf->table + length;\r
+\r
+ {\r
+ FT_Byte* p = bdf->table;\r
+ FT_UInt version = FT_NEXT_USHORT( p );\r
+ FT_UInt num_strikes = FT_NEXT_USHORT( p );\r
+ FT_UInt32 strings = FT_NEXT_ULONG ( p );\r
+ FT_UInt count;\r
+ FT_Byte* strike;\r
+\r
+\r
+ if ( version != 0x0001 ||\r
+ strings < 8 ||\r
+ ( strings - 8 ) / 4 < num_strikes ||\r
+ strings + 1 > length )\r
+ {\r
+ goto BadTable;\r
+ }\r
+\r
+ bdf->num_strikes = num_strikes;\r
+ bdf->strings = bdf->table + strings;\r
+ bdf->strings_size = length - strings;\r
+\r
+ count = bdf->num_strikes;\r
+ p = bdf->table + 8;\r
+ strike = p + count * 4;\r
+\r
+\r
+ for ( ; count > 0; count-- )\r
+ {\r
+ FT_UInt num_items = FT_PEEK_USHORT( p + 2 );\r
+\r
+ /*\r
+ * We don't need to check the value sets themselves, since this\r
+ * is done later.\r
+ */\r
+ strike += 10 * num_items;\r
+\r
+ p += 4;\r
+ }\r
+\r
+ if ( strike > bdf->strings )\r
+ goto BadTable;\r
+ }\r
+\r
+ bdf->loaded = 1;\r
+\r
+ Exit:\r
+ return error;\r
+\r
+ BadTable:\r
+ FT_FRAME_RELEASE( bdf->table );\r
+ FT_ZERO( bdf );\r
+ error = FT_Err_Invalid_Table;\r
+ goto Exit;\r
+ }\r
+\r
+\r
+ FT_LOCAL_DEF( FT_Error )\r
+ tt_face_find_bdf_prop( TT_Face face,\r
+ const char* property_name,\r
+ BDF_PropertyRec *aprop )\r
+ {\r
+ TT_BDF bdf = &face->bdf;\r
+ FT_Size size = FT_FACE(face)->size;\r
+ FT_Error error = 0;\r
+ FT_Byte* p;\r
+ FT_UInt count;\r
+ FT_Byte* strike;\r
+ FT_UInt property_len;\r
+\r
+\r
+ aprop->type = BDF_PROPERTY_TYPE_NONE;\r
+\r
+ if ( bdf->loaded == 0 )\r
+ {\r
+ error = tt_face_load_bdf_props( face, FT_FACE( face )->stream );\r
+ if ( error )\r
+ goto Exit;\r
+ }\r
+\r
+ count = bdf->num_strikes;\r
+ p = bdf->table + 8;\r
+ strike = p + 4 * count;\r
+\r
+ error = FT_Err_Invalid_Argument;\r
+\r
+ if ( size == NULL || property_name == NULL )\r
+ goto Exit;\r
+\r
+ property_len = ft_strlen( property_name );\r
+ if ( property_len == 0 )\r
+ goto Exit;\r
+\r
+ for ( ; count > 0; count-- )\r
+ {\r
+ FT_UInt _ppem = FT_NEXT_USHORT( p );\r
+ FT_UInt _count = FT_NEXT_USHORT( p );\r
+\r
+ if ( _ppem == size->metrics.y_ppem )\r
+ {\r
+ count = _count;\r
+ goto FoundStrike;\r
+ }\r
+\r
+ strike += 10 * _count;\r
+ }\r
+ goto Exit;\r
+\r
+ FoundStrike:\r
+ p = strike;\r
+ for ( ; count > 0; count-- )\r
+ {\r
+ FT_UInt type = FT_PEEK_USHORT( p + 4 );\r
+\r
+ if ( ( type & 0x10 ) != 0 )\r
+ {\r
+ FT_UInt32 name_offset = FT_PEEK_ULONG( p );\r
+ FT_UInt32 value = FT_PEEK_ULONG( p + 6 );\r
+\r
+ /* be a bit paranoid for invalid entries here */\r
+ if ( name_offset < bdf->strings_size &&\r
+ property_len < bdf->strings_size - name_offset &&\r
+ ft_strncmp( property_name,\r
+ (const char*)bdf->strings + name_offset,\r
+ bdf->strings_size - name_offset ) == 0 )\r
+ {\r
+ switch ( type & 0x0F )\r
+ {\r
+ case 0x00: /* string */\r
+ case 0x01: /* atoms */\r
+ /* check that the content is really 0-terminated */\r
+ if ( value < bdf->strings_size &&\r
+ ft_memchr( bdf->strings + value, 0, bdf->strings_size ) )\r
+ {\r
+ aprop->type = BDF_PROPERTY_TYPE_ATOM;\r
+ aprop->u.atom = (const char*)bdf->strings + value;\r
+ error = 0;\r
+ goto Exit;\r
+ }\r
+ break;\r
+\r
+ case 0x02:\r
+ aprop->type = BDF_PROPERTY_TYPE_INTEGER;\r
+ aprop->u.integer = (FT_Int32)value;\r
+ error = 0;\r
+ goto Exit;\r
+\r
+ case 0x03:\r
+ aprop->type = BDF_PROPERTY_TYPE_CARDINAL;\r
+ aprop->u.cardinal = value;\r
+ error = 0;\r
+ goto Exit;\r
+\r
+ default:\r
+ ;\r
+ }\r
+ }\r
+ }\r
+ p += 10;\r
+ }\r
+\r
+ Exit:\r
+ return error;\r
+ }\r
+\r
+#endif /* TT_CONFIG_OPTION_BDF */\r
+\r
+\r
+/* END */\r
projects / reactos.git / blobdiff