#include FT_TRUETYPE_TABLES_H
#include FT_TRUETYPE_TAGS_H
#include FT_TRUETYPE_IDS_H
-#include FT_OUTLINE_H
#include FT_SERVICE_SFNT_H
#include FT_SERVICE_POSTSCRIPT_NAME_H
if ( !args )
return FT_Err_Invalid_Argument;
- memory = library->memory;
+ memory = library->memory;
if ( FT_NEW( stream ) )
goto Exit;
static FT_Error
ft_glyphslot_init( FT_GlyphSlot slot )
{
- FT_Driver driver = slot->face->driver;
- FT_Driver_Class clazz = driver->clazz;
- FT_Memory memory = driver->root.memory;
- FT_Error error = FT_Err_Ok;
- FT_Slot_Internal internal;
+ FT_Driver driver = slot->face->driver;
+ FT_Driver_Class clazz = driver->clazz;
+ FT_Memory memory = driver->root.memory;
+ FT_Error error = FT_Err_Ok;
+ FT_Slot_Internal internal = NULL;
slot->library = driver->root.library;
( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE &&
cur[0]->encoding_id == TT_APPLE_ID_UNICODE_32 ) )
{
+#ifdef FT_MAX_CHARMAP_CACHEABLE
+ if ( cur - first > FT_MAX_CHARMAP_CACHEABLE )
+ {
+ FT_ERROR(( "find_unicode_charmap: UCS-4 cmap is found "
+ "at too late position (%d)\n", cur - first ));
+ continue;
+ }
+#endif
face->charmap = cur[0];
return FT_Err_Ok;
}
{
if ( cur[0]->encoding == FT_ENCODING_UNICODE )
{
+#ifdef FT_MAX_CHARMAP_CACHEABLE
+ if ( cur - first > FT_MAX_CHARMAP_CACHEABLE )
+ {
+ FT_ERROR(( "find_unicode_charmap: UCS-2 cmap is found "
+ "at too late position (%d)\n", cur - first ));
+ continue;
+ }
+#endif
face->charmap = cur[0];
return FT_Err_Ok;
}
if ( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE &&
cur[0]->encoding_id == TT_APPLE_ID_VARIANT_SELECTOR &&
FT_Get_CMap_Format( cur[0] ) == 14 )
+ {
+#ifdef FT_MAX_CHARMAP_CACHEABLE
+ if ( cur - first > FT_MAX_CHARMAP_CACHEABLE )
+ {
+ FT_ERROR(( "find_unicode_charmap: UVS cmap is found "
+ "at too late position (%d)\n", cur - first ));
+ continue;
+ }
+#endif
return cur[0];
+ }
}
return NULL;
goto Exit;
if ( FT_READ_USHORT( flags ) )
goto Exit;
- rlen -= 2; /* the flags are part of the resource */
+ FT_TRACE3(( "POST fragment[%d]: offsets=0x%08x, rlen=0x%08x, flags=0x%04x\n",
+ i, offsets[i], rlen, flags ));
+
+ /* postpone the check of rlen longer than buffer until FT_Stream_Read() */
+ if ( ( flags >> 8 ) == 0 ) /* Comment, should not be loaded */
+ continue;
+
+ /* the flags are part of the resource, so rlen >= 2. */
+ /* but some fonts declare rlen = 0 for empty fragment */
+ if ( rlen > 2 )
+ rlen -= 2;
+ else
+ rlen = 0;
+
if ( ( flags >> 8 ) == type )
len += rlen;
else
{
+ if ( pfb_lenpos + 3 > pfb_len + 2 )
+ goto Exit2;
pfb_data[pfb_lenpos ] = (FT_Byte)( len );
pfb_data[pfb_lenpos + 1] = (FT_Byte)( len >> 8 );
pfb_data[pfb_lenpos + 2] = (FT_Byte)( len >> 16 );
if ( ( flags >> 8 ) == 5 ) /* End of font mark */
break;
+ if ( pfb_pos + 6 > pfb_len + 2 )
+ goto Exit2;
pfb_data[pfb_pos++] = 0x80;
type = flags >> 8;
pfb_data[pfb_pos++] = 0;
}
+ error = FT_Err_Cannot_Open_Resource;
+ if ( pfb_pos > pfb_len || pfb_pos + rlen > pfb_len )
+ goto Exit2;
+
error = FT_Stream_Read( stream, (FT_Byte *)pfb_data + pfb_pos, rlen );
+ if ( error )
+ goto Exit2;
pfb_pos += rlen;
}
+ if ( pfb_pos + 2 > pfb_len + 2 )
+ goto Exit2;
pfb_data[pfb_pos++] = 0x80;
pfb_data[pfb_pos++] = 3;
+ if ( pfb_lenpos + 3 > pfb_len + 2 )
+ goto Exit2;
pfb_data[pfb_lenpos ] = (FT_Byte)( len );
pfb_data[pfb_lenpos + 1] = (FT_Byte)( len >> 8 );
pfb_data[pfb_lenpos + 2] = (FT_Byte)( len >> 16 );
char * file_names[FT_RACCESS_N_RULES];
FT_Long offsets[FT_RACCESS_N_RULES];
FT_Error errors[FT_RACCESS_N_RULES];
+ FT_Bool is_darwin_vfs, vfs_rfork_has_no_font = FALSE; /* not tested */
FT_Open_Args args2;
FT_Stream stream2 = 0;
for ( i = 0; i < FT_RACCESS_N_RULES; i++ )
{
+ is_darwin_vfs = raccess_rule_by_darwin_vfs( i );
+ if ( is_darwin_vfs && vfs_rfork_has_no_font )
+ {
+ FT_TRACE3(( "Skip rule %d: darwin vfs resource fork"
+ " is already checked and"
+ " no font is found\n", i ));
+ continue;
+ }
+
if ( errors[i] )
{
FT_TRACE3(( "Error[%d] has occurred in rule %d\n", errors[i], i ));
i, args2.pathname, offsets[i] ));
error = FT_Stream_New( library, &args2, &stream2 );
+ if ( is_darwin_vfs && error == FT_Err_Cannot_Open_Stream )
+ vfs_rfork_has_no_font = TRUE;
+
if ( error )
{
FT_TRACE3(( "failed\n" ));
if ( !error )
break;
+ else if ( is_darwin_vfs )
+ vfs_rfork_has_no_font = TRUE;
}
for (i = 0; i < FT_RACCESS_N_RULES; i++)
FT_Error error;
FT_Driver driver;
FT_Memory memory;
- FT_Stream stream = 0;
- FT_Face face = 0;
- FT_ListNode node = 0;
+ FT_Stream stream = NULL;
+ FT_Face face = NULL;
+ FT_ListNode node = NULL;
FT_Bool external_stream;
FT_Module* cur;
FT_Module* limit;
internal->transform_delta.x = 0;
internal->transform_delta.y = 0;
+
+ internal->refcount = 1;
}
if ( aface )
}
+ /* documentation is in freetype.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Reference_Face( FT_Face face )
+ {
+ face->internal->refcount++;
+
+ return FT_Err_Ok;
+ }
+
+
/* documentation is in freetype.h */
FT_EXPORT_DEF( FT_Error )
error = FT_Err_Invalid_Face_Handle;
if ( face && face->driver )
{
- driver = face->driver;
- memory = driver->root.memory;
-
- /* find face in driver's list */
- node = FT_List_Find( &driver->faces_list, face );
- if ( node )
+ face->internal->refcount--;
+ if ( face->internal->refcount > 0 )
+ error = FT_Err_Ok;
+ else
{
- /* remove face object from the driver's list */
- FT_List_Remove( &driver->faces_list, node );
- FT_FREE( node );
+ driver = face->driver;
+ memory = driver->root.memory;
- /* now destroy the object proper */
- destroy_face( memory, face, driver );
- error = FT_Err_Ok;
+ /* find face in driver's list */
+ node = FT_List_Find( &driver->faces_list, face );
+ if ( node )
+ {
+ /* remove face object from the driver's list */
+ FT_List_Remove( &driver->faces_list, node );
+ FT_FREE( node );
+
+ /* now destroy the object proper */
+ destroy_face( memory, face, driver );
+ error = FT_Err_Ok;
+ }
}
}
+
return error;
}
{
if ( cur[0]->encoding == encoding )
{
+#ifdef FT_MAX_CHARMAP_CACHEABLE
+ if ( cur - face->charmaps > FT_MAX_CHARMAP_CACHEABLE )
+ {
+ FT_ERROR(( "FT_Select_Charmap: requested charmap is found (%d), "
+ "but in too late position to cache\n",
+ cur - face->charmaps ));
+ continue;
+ }
+#endif
face->charmap = cur[0];
return 0;
}
{
if ( cur[0] == charmap )
{
+#ifdef FT_MAX_CHARMAP_CACHEABLE
+ if ( cur - face->charmaps > FT_MAX_CHARMAP_CACHEABLE )
+ {
+ FT_ERROR(( "FT_Set_Charmap: requested charmap is found (%d), "
+ "but in too late position to cache\n",
+ cur - face->charmaps ));
+ continue;
+ }
+#endif
face->charmap = cur[0];
return 0;
}
FT_Int i;
+ if ( !charmap || !charmap->face )
+ return -1;
+
for ( i = 0; i < charmap->face->num_charmaps; i++ )
if ( charmap->face->charmaps[i] == charmap )
break;
FT_ASSERT( i < charmap->face->num_charmaps );
+#ifdef FT_MAX_CHARMAP_CACHEABLE
+ if ( i > FT_MAX_CHARMAP_CACHEABLE )
+ {
+ FT_ERROR(( "FT_Get_Charmap_Index: requested charmap is found (%d), "
+ "but in too late position to cache\n",
+ i ));
+ return -i;
+ }
+#endif
return i;
}
}
result = cmap->clazz->char_index( cmap, (FT_UInt32)charcode );
}
- return result;
+ return result;
}
FT_UInt gindex = 0;
- if ( face && face->charmap )
+ if ( face && face->charmap && face->num_glyphs )
{
gindex = FT_Get_Char_Index( face, 0 );
- if ( gindex == 0 )
+ if ( gindex == 0 || gindex >= (FT_UInt)face->num_glyphs )
result = FT_Get_Next_Char( face, 0, &gindex );
}
- if ( agindex )
+ if ( agindex )
*agindex = gindex;
return result;
FT_UInt gindex = 0;
- if ( face && face->charmap )
+ if ( face && face->charmap && face->num_glyphs )
{
FT_UInt32 code = (FT_UInt32)charcode;
FT_CMap cmap = FT_CMAP( face->charmap );
- gindex = cmap->clazz->char_next( cmap, &code );
+ do {
+ gindex = cmap->clazz->char_next( cmap, &code );
+ } while ( gindex >= (FT_UInt)face->num_glyphs );
+
result = ( gindex == 0 ) ? 0 : code;
}
FT_Library library = module->library;
FT_Memory memory = library->memory;
FT_Error error;
- FT_ListNode node;
+ FT_ListNode node = NULL;
if ( FT_NEW( node ) )
/* allocate raster object if needed */
if ( clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
- clazz->raster_class->raster_new )
+ clazz->raster_class->raster_new )
{
error = clazz->raster_class->raster_new( memory, &render->raster );
if ( error )
/* release raster object, if any */
- if ( render->raster )
+ if ( render->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
+ render->raster )
render->clazz->raster_class->raster_done( render->raster );
/* remove from list */
FT_Library library;
- if ( !slot )
+ if ( !slot || !slot->face )
return FT_Err_Invalid_Argument;
library = FT_FACE_LIBRARY( slot->face );
FT_Renderer renderer = FT_RENDERER( module );
- if ( renderer->raster )
+ if ( renderer->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
+ renderer->raster )
renderer->clazz->raster_class->raster_done( renderer->raster );
}
/*************************************************************************/
+ /* documentation is in ftmodapi.h */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Reference_Library( FT_Library library )
+ {
+ library->refcount++;
+
+ return FT_Err_Ok;
+ }
+
+
/* documentation is in ftmodapi.h */
FT_EXPORT_DEF( FT_Error )
FT_New_Library( FT_Memory memory,
FT_Library *alibrary )
{
- FT_Library library = 0;
+ FT_Library library = NULL;
FT_Error error;
library->version_minor = FREETYPE_MINOR;
library->version_patch = FREETYPE_PATCH;
+ library->refcount = 1;
+
/* That's ok now */
*alibrary = library;
if ( !library )
return FT_Err_Invalid_Library_Handle;
+ library->refcount--;
+ if ( library->refcount > 0 )
+ goto Exit;
+
memory = library->memory;
/* Discard client-data */
if ( library->generic.finalizer )
library->generic.finalizer( library );
- /* Close all faces in the library. If we don't do
- * this, we can have some subtle memory leaks.
+ /*
+ * Close all faces in the library. If we don't do this, we can have
+ * some subtle memory leaks.
+ *
* Example:
*
* - the cff font driver uses the pshinter module in cff_size_done
* - if the pshinter module is destroyed before the cff font driver,
* opened FT_Face objects managed by the driver are not properly
* destroyed, resulting in a memory leak
+ *
+ * Some faces are dependent on other faces, like Type42 faces that
+ * depend on TrueType faces synthesized internally.
+ *
+ * The order of drivers should be specified in driver_name[].
*/
{
- FT_UInt n;
+ FT_UInt m, n;
+ const char* driver_name[] = { "type42", NULL };
- for ( n = 0; n < library->num_modules; n++ )
+ for ( m = 0;
+ m < sizeof ( driver_name ) / sizeof ( driver_name[0] );
+ m++ )
{
- FT_Module module = library->modules[n];
- FT_List faces;
+ for ( n = 0; n < library->num_modules; n++ )
+ {
+ FT_Module module = library->modules[n];
+ const char* module_name = module->clazz->module_name;
+ FT_List faces;
- if ( ( module->clazz->module_flags & FT_MODULE_FONT_DRIVER ) == 0 )
- continue;
+ if ( driver_name[m] &&
+ ft_strcmp( module_name, driver_name[m] ) != 0 )
+ continue;
- faces = &FT_DRIVER(module)->faces_list;
- while ( faces->head )
- {
- FT_Done_Face( FT_FACE( faces->head->data ) );
- if ( faces->head )
- FT_TRACE0(( "FT_Done_Library: failed to free some faces\n" ));
+ if ( ( module->clazz->module_flags & FT_MODULE_FONT_DRIVER ) == 0 )
+ continue;
+
+ FT_TRACE7(( "FT_Done_Library: close faces for %s\n", module_name ));
+
+ faces = &FT_DRIVER( module )->faces_list;
+ while ( faces->head )
+ {
+ FT_Done_Face( FT_FACE( faces->head->data ) );
+ if ( faces->head )
+ FT_TRACE0(( "FT_Done_Library: failed to free some faces\n" ));
+ }
}
}
}
#endif
FT_FREE( library );
+
+ Exit:
return FT_Err_Ok;
}
#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
+ /* documentation is in freetype.h */
+
FT_EXPORT_DEF( FT_Error )
FT_Get_SubGlyph_Info( FT_GlyphSlot glyph,
FT_UInt sub_index,
FT_Error error = FT_Err_Invalid_Argument;
- if ( glyph != NULL &&
+ if ( glyph &&
+ glyph->subglyphs &&
glyph->format == FT_GLYPH_FORMAT_COMPOSITE &&
sub_index < glyph->num_subglyphs )
{
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