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Bug 485559 – Boston Summit HarfBuzz optimizations 

2007-10-10  Behdad Esfahbod  <behdad@gnome.org>

        Bug 485559 – Boston Summit HarfBuzz optimizations

        * pango/opentype/*: HarfBuzz hacking to:

          - Rename last remaining FT_Err stuff to HB_Err.

          - Fix a couple invalid table paths to be permissive so
            fonts work better.  Particularly GDEF table for Nafees
            Nastaliq is loaded and works great now.

          - Optimize harfbuzz buffer to not copy/swap for simple
          one-to-one and "copy" GSUB operations.

        * pango/pango-ot*: Update to FT_Err to HB_Err renaming.
This commit is contained in:
Behdad Esfahbod 2007-10-11 00:07:58 +00:00 committed by Behdad Esfahbod
parent dd810b76bc
commit a8abb8b994
19 changed files with 1257 additions and 1311 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

51
src/ftglue.c
View File

@ -32,16 +32,16 @@ _hb_ftglue_log( const char* format, ... )
static FT_Pointer
_hb_ftglue_qalloc( FT_Memory memory,
FT_ULong size,
FT_Error *perror )
HB_Error *perror )
{
FT_Error error = 0;
HB_Error error = 0;
FT_Pointer block = NULL;
if ( size > 0 )
{
block = memory->alloc( memory, size );
if ( !block )
error = FT_Err_Out_Of_Memory;
error = HB_Err_Out_Of_Memory;
}
*perror = error;
@ -55,16 +55,16 @@ _hb_ftglue_qalloc( FT_Memory memory,
FTGLUE_APIDEF( FT_Pointer )
_hb_ftglue_alloc( FT_Memory memory,
FT_ULong size,
FT_Error *perror )
HB_Error *perror )
{
FT_Error error = 0;
HB_Error error = 0;
FT_Pointer block = NULL;
if ( size > 0 )
{
block = memory->alloc( memory, size );
if ( !block )
error = FT_Err_Out_Of_Memory;
error = HB_Err_Out_Of_Memory;
else
memset( (char*)block, 0, (size_t)size );
}
@ -79,10 +79,10 @@ _hb_ftglue_realloc( FT_Memory memory,
FT_Pointer block,
FT_ULong old_size,
FT_ULong new_size,
FT_Error *perror )
HB_Error *perror )
{
FT_Pointer block2 = NULL;
FT_Error error = 0;
HB_Error error = 0;
if ( old_size == 0 || block == NULL )
{
@ -96,7 +96,7 @@ _hb_ftglue_realloc( FT_Memory memory,
{
block2 = memory->realloc( memory, old_size, new_size, block );
if ( block2 == NULL )
error = FT_Err_Out_Of_Memory;
error = HB_Err_Out_Of_Memory;
else if ( new_size > old_size )
memset( (char*)block2 + old_size, 0, (size_t)(new_size - old_size) );
}
@ -126,31 +126,31 @@ _hb_ftglue_stream_pos( FT_Stream stream )
}
FTGLUE_APIDEF( FT_Error )
FTGLUE_APIDEF( HB_Error )
_hb_ftglue_stream_seek( FT_Stream stream,
FT_Long pos )
{
FT_Error error = 0;
HB_Error error = 0;
stream->pos = pos;
if ( stream->read )
{
if ( stream->read( stream, pos, NULL, 0 ) )
error = FT_Err_Invalid_Stream_Operation;
error = HB_Err_Invalid_Stream_Operation;
}
else if ( pos > (FT_Long)stream->size )
error = FT_Err_Invalid_Stream_Operation;
error = HB_Err_Invalid_Stream_Operation;
LOG(( "ftglue:stream:seek(%ld) -> %d\n", pos, error ));
return error;
}
FTGLUE_APIDEF( FT_Error )
FTGLUE_APIDEF( HB_Error )
_hb_ftglue_stream_frame_enter( FT_Stream stream,
FT_ULong count )
{
FT_Error error = FT_Err_Ok;
HB_Error error = HB_Err_Ok;
FT_ULong read_bytes;
if ( stream->read )
@ -168,7 +168,7 @@ _hb_ftglue_stream_frame_enter( FT_Stream stream,
if ( read_bytes < count )
{
FREE( stream->base );
error = FT_Err_Invalid_Stream_Operation;
error = HB_Err_Invalid_Stream_Operation;
}
stream->cursor = stream->base;
stream->limit = stream->cursor + count;
@ -180,7 +180,7 @@ _hb_ftglue_stream_frame_enter( FT_Stream stream,
if ( stream->pos >= stream->size ||
stream->pos + count > stream->size )
{
error = FT_Err_Invalid_Stream_Operation;
error = HB_Err_Invalid_Stream_Operation;
goto Exit;
}
@ -212,12 +212,12 @@ _hb_ftglue_stream_frame_exit( FT_Stream stream )
}
FTGLUE_APIDEF( FT_Error )
FTGLUE_APIDEF( HB_Error )
_hb_ftglue_face_goto_table( FT_Face face,
FT_ULong the_tag,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
LOG(( "_hb_ftglue_face_goto_table( %p, %c%c%c%c, %p )\n",
face,
@ -230,7 +230,7 @@ _hb_ftglue_face_goto_table( FT_Face face,
if ( !FT_IS_SFNT(face) )
{
LOG(( "not a SFNT face !!\n" ));
error = FT_Err_Invalid_Face_Handle;
error = HB_Err_Invalid_Face_Handle;
}
else
{
@ -285,7 +285,7 @@ _hb_ftglue_face_goto_table( FT_Face face,
goto FoundIt;
}
}
error = FT_Err_Table_Missing;
error = HB_Err_Table_Missing;
FoundIt:
FORGET_Frame();
@ -298,3 +298,12 @@ Exit:
}
#undef QALLOC
/* abuse these private header/source files */
/* helper func to set a breakpoint on */
HB_Error
_hb_err (HB_Error code)
{
return code;
}

21
src/ftglue.h
View File

@ -46,11 +46,17 @@
#include <ft2build.h>
#include FT_FREETYPE_H
#include "harfbuzz-open.h"
FT_BEGIN_HEADER
/* utility macros */
#ifndef HB_Error
#define HB_Error FT_Error
#endif
#define SET_ERR(c) ( (error = (c)) != 0 )
#ifndef FTGLUE_API
@ -88,18 +94,18 @@ FT_BEGIN_HEADER
FTGLUE_API( FT_Long )
_hb_ftglue_stream_pos( FT_Stream stream );
FTGLUE_API( FT_Error )
FTGLUE_API( HB_Error )
_hb_ftglue_stream_seek( FT_Stream stream,
FT_Long pos );
FTGLUE_API( FT_Error )
FTGLUE_API( HB_Error )
_hb_ftglue_stream_frame_enter( FT_Stream stream,
FT_ULong size );
FTGLUE_API( void )
_hb_ftglue_stream_frame_exit( FT_Stream stream );
FTGLUE_API( FT_Error )
FTGLUE_API( HB_Error )
_hb_ftglue_face_goto_table( FT_Face face,
FT_ULong tag,
FT_Stream stream );
@ -132,19 +138,24 @@ _hb_ftglue_face_goto_table( FT_Face face,
FTGLUE_API( FT_Pointer )
_hb_ftglue_alloc( FT_Memory memory,
FT_ULong size,
FT_Error *perror_ );
HB_Error *perror_ );
FTGLUE_API( FT_Pointer )
_hb_ftglue_realloc( FT_Memory memory,
FT_Pointer block,
FT_ULong old_size,
FT_ULong new_size,
FT_Error *perror_ );
HB_Error *perror_ );
FTGLUE_API( void )
_hb_ftglue_free( FT_Memory memory,
FT_Pointer block );
/* abuse these private header/source files */
/* helper func to set a breakpoint on */
HB_Error _hb_err (HB_Error code);
FT_END_HEADER
#endif /* FTGLUE_H */

190
src/harfbuzz-buffer.c
View File

@ -1,6 +1,6 @@
/* harfbuzz-buffer.c: Buffer of glyphs for substitution/positioning
*
* Copyright 2004 Red Hat Software
* Copyright 2004,2007 Red Hat Software
*
* Portions Copyright 1996-2000 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
@ -11,7 +11,34 @@
#include "harfbuzz-gsub-private.h"
#include "harfbuzz-gpos-private.h"
static FT_Error
/* Here is how the buffer works internally:
*
* There are two string pointers: in_string and out_string. They
* always have same allocated size, but different length and positions.
*
* As an optimization, both in_string and out_string may point to the
* same piece of memory, which is owned by in_string. This remains the
* case as long as:
*
* - copy_glyph() is called
* - replace_glyph() is called with inplace=TRUE
* - add_output_glyph() and add_output_glyphs() are not called
*
* In that case swap(), and copy_glyph(), and replace_glyph() are all
* mostly no-op.
*
* As soon an add_output_glyph[s]() or replace_glyph() with inplace=FALSE is
* called, out_string is moved over to an alternate buffer (alt_string), and
* its current contents (out_length entries) are copied to the alt buffer.
* This should all remain transparent to the user. swap() then switches
* in_string and alt_string. alt_string is not allocated until its needed,
* but after that it's grown with in_string unconditionally.
*
* The buffer->inplace boolean keeps status of whether out_string points to
* in_string or alt_string.
*/
static HB_Error
hb_buffer_ensure( HB_Buffer buffer,
FT_ULong size )
{
@ -20,29 +47,63 @@ hb_buffer_ensure( HB_Buffer buffer,
if (size > new_allocated)
{
FT_Error error;
HB_Error error;
while (size > new_allocated)
new_allocated += (new_allocated >> 1) + 8;
if ( REALLOC_ARRAY( buffer->in_string, buffer->allocated, new_allocated, HB_GlyphItemRec ) )
return error;
if ( REALLOC_ARRAY( buffer->out_string, buffer->allocated, new_allocated, HB_GlyphItemRec ) )
return error;
if ( REALLOC_ARRAY( buffer->positions, buffer->allocated, new_allocated, HB_PositionRec ) )
return error;
if ( REALLOC_ARRAY( buffer->in_string, buffer->allocated, new_allocated, HB_GlyphItemRec ) )
return error;
if ( buffer->inplace )
{
buffer->out_string = buffer->in_string;
if ( buffer->alt_string )
{
if ( REALLOC_ARRAY( buffer->alt_string, buffer->allocated, new_allocated, HB_GlyphItemRec ) )
return error;
}
}
else
{
if ( REALLOC_ARRAY( buffer->alt_string, buffer->allocated, new_allocated, HB_GlyphItemRec ) )
return error;
buffer->out_string = buffer->alt_string;
}
buffer->allocated = new_allocated;
}
return FT_Err_Ok;
return HB_Err_Ok;
}
FT_Error
static HB_Error
hb_buffer_duplicate_out_buffer( HB_Buffer buffer )
{
if ( !buffer->alt_string )
{
FT_Memory memory = buffer->memory;
HB_Error error;
if ( ALLOC_ARRAY( buffer->alt_string, buffer->allocated, HB_GlyphItemRec ) )
return error;
}
buffer->out_string = buffer->alt_string;
memcpy( buffer->out_string, buffer->in_string, buffer->out_length * sizeof (buffer->out_string[0]) );
buffer->inplace = FALSE;
return HB_Err_Ok;
}
HB_Error
hb_buffer_new( FT_Memory memory,
HB_Buffer *buffer )
{
FT_Error error;
HB_Error error;
if ( ALLOC( *buffer, sizeof( HB_BufferRec ) ) )
return error;
@ -56,61 +117,77 @@ hb_buffer_new( FT_Memory memory,
(*buffer)->in_string = NULL;
(*buffer)->out_string = NULL;
(*buffer)->alt_string = NULL;
(*buffer)->positions = NULL;
(*buffer)->max_ligID = 0;
(*buffer)->inplace = TRUE;
return FT_Err_Ok;
return HB_Err_Ok;
}
FT_Error
void
hb_buffer_clear_output( HB_Buffer buffer )
{
buffer->out_length = 0;
buffer->out_pos = 0;
buffer->out_string = buffer->in_string;
buffer->inplace = TRUE;
}
void
hb_buffer_swap( HB_Buffer buffer )
{
HB_GlyphItem tmp_string;
int tmp_length;
int tmp_pos;
tmp_string = buffer->in_string;
buffer->in_string = buffer->out_string;
buffer->out_string = tmp_string;
if ( ! buffer->inplace )
{
tmp_string = buffer->in_string;
buffer->in_string = buffer->out_string;
buffer->out_string = tmp_string;
buffer->alt_string = buffer->out_string;
}
tmp_length = buffer->in_length;
buffer->in_length = buffer->out_length;
buffer->out_length = 0;
buffer->in_pos = 0;
buffer->out_pos = 0;
buffer->out_length = tmp_length;
return FT_Err_Ok;
tmp_pos = buffer->in_pos;
buffer->in_pos = buffer->out_pos;
buffer->out_pos = tmp_pos;
}
FT_Error
void
hb_buffer_free( HB_Buffer buffer )
{
FT_Memory memory = buffer->memory;
FREE( buffer->in_string );
FREE( buffer->out_string );
FREE( buffer->alt_string );
buffer->out_string = NULL;
FREE( buffer->positions );
FREE( buffer );
return FT_Err_Ok;
}
FT_Error
void
hb_buffer_clear( HB_Buffer buffer )
{
buffer->in_length = 0;
buffer->out_length = 0;
buffer->in_pos = 0;
buffer->out_pos = 0;
return FT_Err_Ok;
buffer->out_string = buffer->in_string;
buffer->inplace = TRUE;
}
FT_Error
HB_Error
hb_buffer_add_glyph( HB_Buffer buffer,
FT_UInt glyph_index,
FT_UInt properties,
FT_UInt cluster )
{
FT_Error error;
HB_Error error;
HB_GlyphItem glyph;
error = hb_buffer_ensure( buffer, buffer->in_length + 1 );
@ -127,7 +204,7 @@ hb_buffer_add_glyph( HB_Buffer buffer,
buffer->in_length++;
return FT_Err_Ok;
return HB_Err_Ok;
}
/* The following function copies `num_out' elements from `glyph_data'
@ -149,7 +226,7 @@ hb_buffer_add_glyph( HB_Buffer buffer,
The cluster value for the glyph at position buffer->in_pos is used
for all replacement glyphs */
FT_Error
HB_Error
hb_buffer_add_output_glyphs( HB_Buffer buffer,
FT_UShort num_in,
FT_UShort num_out,
@ -157,7 +234,7 @@ hb_buffer_add_output_glyphs( HB_Buffer buffer,
FT_UShort component,
FT_UShort ligID )
{
FT_Error error;
HB_Error error;
FT_UShort i;
FT_UInt properties;
FT_UInt cluster;
@ -166,6 +243,13 @@ hb_buffer_add_output_glyphs( HB_Buffer buffer,
if ( error )
return error;
if ( buffer->inplace )
{
error = hb_buffer_duplicate_out_buffer( buffer );
if ( error )
return error;
}
properties = buffer->in_string[buffer->in_pos].properties;
cluster = buffer->in_string[buffer->in_pos].cluster;
if ( component == 0xFFFF )
@ -190,10 +274,10 @@ hb_buffer_add_output_glyphs( HB_Buffer buffer,
buffer->out_length = buffer->out_pos;
return FT_Err_Ok;
return HB_Err_Ok;
}
FT_Error
HB_Error
hb_buffer_add_output_glyph( HB_Buffer buffer,
FT_UInt glyph_index,
FT_UShort component,
@ -205,19 +289,49 @@ hb_buffer_add_output_glyph( HB_Buffer buffer,
&glyph_data, component, ligID );
}
FT_Error
HB_Error
hb_buffer_copy_output_glyph ( HB_Buffer buffer )
{
FT_Error error;
HB_Error error;
error = hb_buffer_ensure( buffer, buffer->out_pos + 1 );
if ( error )
return error;
buffer->out_string[buffer->out_pos++] = buffer->in_string[buffer->in_pos++];
if ( ! buffer->inplace )
{
buffer->out_string[buffer->out_pos] = buffer->in_string[buffer->in_pos];
}
buffer->in_pos++;
buffer->out_pos++;
buffer->out_length = buffer->out_pos;
return FT_Err_Ok;
return HB_Err_Ok;
}
HB_Error
hb_buffer_replace_output_glyph( HB_Buffer buffer,
FT_UInt glyph_index,
FT_Bool inplace )
{
HB_Error error;
if ( inplace )
{
error = hb_buffer_copy_output_glyph ( buffer );
if ( error )
return error;
buffer->out_string[buffer->out_pos-1].gindex = glyph_index;
}
else
{
return hb_buffer_add_output_glyph( buffer, glyph_index, 0xFFFF, 0xFFFF );
}
return HB_Err_Ok;
}
FT_UShort

26
src/harfbuzz-buffer.h
View File

@ -56,32 +56,37 @@ typedef struct HB_BufferRec_{
FT_ULong in_pos;
FT_ULong out_pos;
FT_Bool inplace;
HB_GlyphItem in_string;
HB_GlyphItem out_string;
HB_GlyphItem alt_string;
HB_Position positions;
FT_UShort max_ligID;
} HB_BufferRec, *HB_Buffer;
FT_Error
HB_Error
hb_buffer_new( FT_Memory memory,
HB_Buffer *buffer );
FT_Error
void
hb_buffer_swap( HB_Buffer buffer );
FT_Error
void
hb_buffer_free( HB_Buffer buffer );
FT_Error
void
hb_buffer_clear( HB_Buffer buffer );
FT_Error
void
hb_buffer_clear_output( HB_Buffer buffer );
HB_Error
hb_buffer_add_glyph( HB_Buffer buffer,
FT_UInt glyph_index,
FT_UInt properties,
FT_UInt cluster );
FT_Error
HB_Error
hb_buffer_add_output_glyphs( HB_Buffer buffer,
FT_UShort num_in,
FT_UShort num_out,
@ -89,15 +94,20 @@ hb_buffer_add_output_glyphs( HB_Buffer buffer,
FT_UShort component,
FT_UShort ligID );
FT_Error
HB_Error
hb_buffer_add_output_glyph ( HB_Buffer buffer,
FT_UInt glyph_index,
FT_UShort component,
FT_UShort ligID );
FT_Error
HB_Error
hb_buffer_copy_output_glyph ( HB_Buffer buffer );
HB_Error
hb_buffer_replace_output_glyph ( HB_Buffer buffer,
FT_UInt glyph_index,
FT_Bool inplace );
FT_UShort
hb_buffer_allocate_ligid( HB_Buffer buffer );

14
src/harfbuzz-dump-main.c
View File

@ -28,7 +28,7 @@
#define N_ELEMENTS(arr) (sizeof(arr)/ sizeof((arr)[0]))
static int
croak (const char *situation, FT_Error error)
croak (const char *situation, HB_Error error)
{
fprintf (stderr, "%s: Error %d\n", situation, error);
@ -59,7 +59,7 @@ maybe_add_feature (HB_GSUB gsub,
FT_ULong tag,
FT_UShort property)
{
FT_Error error;
HB_Error error;
FT_UShort feature_index;
/* 0xffff == default language system */
@ -122,7 +122,7 @@ select_cmap (FT_Face face)
static void
add_features (HB_GSUB gsub)
{
FT_Error error;
HB_Error error;
FT_ULong tag = FT_MAKE_TAG ('a', 'r', 'a', 'b');
FT_UShort script_index;
@ -173,7 +173,7 @@ try_string (FT_Library library,
FT_Face face,
HB_GSUB gsub)
{
FT_Error error;
HB_Error error;
HB_GSUB_String *in_str;
HB_GSUB_String *out_str;
FT_ULong i;
@ -210,7 +210,7 @@ try_string (FT_Library library,
int
main (int argc, char **argv)
{
FT_Error error;
HB_Error error;
FT_Library library;
FT_Face face;
HB_GSUB gsub;
@ -238,7 +238,7 @@ main (int argc, char **argv)
if ((error = HB_Done_GSUB_Table (gsub)))
croak ("HB_Done_GSUB_Table", error);
}
else if (error != FT_Err_Table_Missing)
else if (error != HB_Err_Table_Missing)
fprintf (stderr, "HB_Load_GSUB_Table %x\n", error);
if (!(error = HB_Load_GPOS_Table (face, &gpos, NULL)))
@ -248,7 +248,7 @@ main (int argc, char **argv)
if ((error = HB_Done_GPOS_Table (gpos)))
croak ("HB_Done_GPOS_Table", error);
}
else if (error != FT_Err_Table_Missing)
else if (error != HB_Err_Table_Missing)
fprintf (stderr, "HB_Load_GPOS_Table %x\n", error);
printf ("</OpenType>\n");

15
src/harfbuzz-dump.c
View File

@ -452,7 +452,7 @@ static void
Dump_Device (HB_Device *Device, FILE *stream, int indent, HB_Type hb_type)
{
int i;
int bits = 0;
int bits;
int n_per;
unsigned int mask;
@ -472,6 +472,9 @@ Dump_Device (HB_Device *Device, FILE *stream, int indent, HB_Type hb_type)
case 3:
bits = 8;
break;
default:
bits = 0;
break;
}
DUMP ("<DeltaValue>");
@ -634,7 +637,7 @@ Dump_GPOS_Lookup_Markbase (HB_SubTable *subtable, FILE *stream, int indent, HB_T
DEF_DUMP (Lookup)
{
int i;
const char *lookup_name = NULL;
const char *lookup_name;
void (*lookup_func) (HB_SubTable *subtable, FILE *stream, int indent, HB_Type hb_type) = NULL;
if (hb_type == HB_Type_GSUB)
@ -663,6 +666,10 @@ DEF_DUMP (Lookup)
lookup_name = "CHAIN";
lookup_func = Dump_GSUB_Lookup_Chain;
break;
default:
lookup_name = "(unknown)";
lookup_func = NULL;
break;
}
}
else
@ -696,6 +703,10 @@ DEF_DUMP (Lookup)
case HB_GPOS_LOOKUP_CHAIN:
lookup_name = "CHAIN";
break;
default:
lookup_name = "(unknown)";
lookup_func = NULL;
break;
}
}

4
src/harfbuzz-gdef-private.h
View File

@ -87,11 +87,11 @@ struct HB_LigGlyph_
};
FT_Error _HB_GDEF_Add_Glyph_Property( HB_GDEFHeader* gdef,
HB_Error _HB_GDEF_Add_Glyph_Property( HB_GDEFHeader* gdef,
FT_UShort glyphID,
FT_UShort property );
FT_Error _HB_GDEF_Check_Property( HB_GDEFHeader* gdef,
HB_Error _HB_GDEF_Check_Property( HB_GDEFHeader* gdef,
HB_GlyphItem item,
FT_UShort flags,
FT_UShort* property );

149
src/harfbuzz-gdef.c
View File

@ -14,9 +14,9 @@
#include "harfbuzz-gdef-private.h"
#include "harfbuzz-open-private.h"
static FT_Error Load_AttachList( HB_AttachList* al,
static HB_Error Load_AttachList( HB_AttachList* al,
FT_Stream stream );
static FT_Error Load_LigCaretList( HB_LigCaretList* lcl,
static HB_Error Load_LigCaretList( HB_LigCaretList* lcl,
FT_Stream stream );
static void Free_AttachList( HB_AttachList* al,
@ -37,7 +37,7 @@ static void Free_NewGlyphClasses( HB_GDEFHeader* gdef,
#define GDEF_ID Build_Extension_ID( 'G', 'D', 'E', 'F' )
static FT_Error GDEF_Create( void* ext,
static HB_Error GDEF_Create( void* ext,
PFace face )
{
DEFINE_LOAD_LOCALS( face->stream );
@ -49,7 +49,7 @@ static FT_Error GDEF_Create( void* ext,
/* by convention */
if ( !gdef )
return FT_Err_Ok;
return HB_Err_Ok;
/* a null offset indicates that there is no GDEF table */
@ -59,7 +59,7 @@ static FT_Error GDEF_Create( void* ext,
table = HB_LookUp_Table( face, TTAG_GDEF );
if ( table < 0 )
return FT_Err_Ok; /* The table is optional */
return HB_Err_Ok; /* The table is optional */
if ( FILE_Seek( face->dirTables[table].Offset ) ||
ACCESS_Frame( 4L ) )
@ -72,11 +72,11 @@ static FT_Error GDEF_Create( void* ext,
gdef->loaded = FALSE;
return FT_Err_Ok;
return HB_Err_Ok;
}
static FT_Error GDEF_Destroy( void* ext,
static HB_Error GDEF_Destroy( void* ext,
PFace face )
{
HB_GDEFHeader* gdef = (HB_GDEFHeader*)ext;
@ -85,7 +85,7 @@ static FT_Error GDEF_Destroy( void* ext,
/* by convention */
if ( !gdef )
return FT_Err_Ok;
return HB_Err_Ok;
if ( gdef->loaded )
{
@ -97,18 +97,18 @@ static FT_Error GDEF_Destroy( void* ext,
Free_NewGlyphClasses( gdef, memory );
}
return FT_Err_Ok;
return HB_Err_Ok;
}
FT_Error HB_Init_GDEF_Extension( HB_Engine engine )
HB_Error HB_Init_GDEF_Extension( HB_Engine engine )
{
PEngine_Instance _engine = HANDLE_Engine( engine );
if ( !_engine )
return FT_Err_Invalid_Engine;
return HB_Err_Invalid_Engine;
return HB_Register_Extension( _engine,
GDEF_ID,
@ -130,16 +130,16 @@ FT_Error HB_Init_GDEF_Extension( HB_Engine engine )
FT_Error HB_New_GDEF_Table( FT_Face face,
HB_Error HB_New_GDEF_Table( FT_Face face,
HB_GDEFHeader** retptr )
{
FT_Error error;
HB_Error error;
FT_Memory memory = face->memory;
HB_GDEFHeader* gdef;
if ( !retptr )
return FT_Err_Invalid_Argument;
return HB_Err_Invalid_Argument;
if ( ALLOC( gdef, sizeof( *gdef ) ) )
return error;
@ -157,14 +157,14 @@ FT_Error HB_New_GDEF_Table( FT_Face face,
*retptr = gdef;
return FT_Err_Ok;
return HB_Err_Ok;
}
FT_Error HB_Load_GDEF_Table( FT_Face face,
HB_Error HB_Load_GDEF_Table( FT_Face face,
HB_GDEFHeader** retptr )
{
FT_Error error;
HB_Error error;
FT_Memory memory = face->memory;
FT_Stream stream = face->stream;
FT_ULong cur_offset, new_offset, base_offset;
@ -173,7 +173,7 @@ FT_Error HB_Load_GDEF_Table( FT_Face face,
if ( !retptr )
return FT_Err_Invalid_Argument;
return HB_Err_Invalid_Argument;
if (( error = _hb_ftglue_face_goto_table( face, TTAG_GDEF, stream ) ))
return error;
@ -204,7 +204,7 @@ FT_Error HB_Load_GDEF_Table( FT_Face face,
cur_offset = FILE_Pos();
if ( FILE_Seek( new_offset ) ||
( error = _HB_OPEN_Load_ClassDefinition( &gdef->GlyphClassDef, 5,
stream ) ) != FT_Err_Ok )
stream ) ) != HB_Err_Ok )
goto Fail0;
(void)FILE_Seek( cur_offset );
}
@ -223,7 +223,7 @@ FT_Error HB_Load_GDEF_Table( FT_Face face,
cur_offset = FILE_Pos();
if ( FILE_Seek( new_offset ) ||
( error = Load_AttachList( &gdef->AttachList,
stream ) ) != FT_Err_Ok )
stream ) ) != HB_Err_Ok )
goto Fail1;
(void)FILE_Seek( cur_offset );
}
@ -242,7 +242,7 @@ FT_Error HB_Load_GDEF_Table( FT_Face face,
cur_offset = FILE_Pos();
if ( FILE_Seek( new_offset ) ||
( error = Load_LigCaretList( &gdef->LigCaretList,
stream ) ) != FT_Err_Ok )
stream ) ) != HB_Err_Ok )
goto Fail2;
(void)FILE_Seek( cur_offset );
}
@ -265,7 +265,7 @@ FT_Error HB_Load_GDEF_Table( FT_Face face,
*retptr = gdef;
return FT_Err_Ok;
return HB_Err_Ok;
Fail3:
Free_LigCaretList( &gdef->LigCaretList, memory );
@ -283,7 +283,7 @@ Fail0:
}
FT_Error HB_Done_GDEF_Table ( HB_GDEFHeader* gdef )
HB_Error HB_Done_GDEF_Table ( HB_GDEFHeader* gdef )
{
FT_Memory memory = gdef->memory;
@ -296,7 +296,7 @@ FT_Error HB_Done_GDEF_Table ( HB_GDEFHeader* gdef )
FREE( gdef );
return FT_Err_Ok;
return HB_Err_Ok;
}
@ -309,11 +309,11 @@ FT_Error HB_Done_GDEF_Table ( HB_GDEFHeader* gdef )
/* AttachPoint */
static FT_Error Load_AttachPoint( HB_AttachPoint* ap,
static HB_Error Load_AttachPoint( HB_AttachPoint* ap,
FT_Stream stream )
{
FT_Memory memory = stream->memory;
FT_Error error;
HB_Error error;
FT_UShort n, count;
FT_UShort* pi;
@ -347,7 +347,7 @@ static FT_Error Load_AttachPoint( HB_AttachPoint* ap,
FORGET_Frame();
}
return FT_Err_Ok;
return HB_Err_Ok;
}
@ -360,11 +360,11 @@ static void Free_AttachPoint( HB_AttachPoint* ap,
/* AttachList */
static FT_Error Load_AttachList( HB_AttachList* al,
static HB_Error Load_AttachList( HB_AttachList* al,
FT_Stream stream )
{
FT_Memory memory = stream->memory;
FT_Error error;
HB_Error error;
FT_UShort n, m, count;
FT_ULong cur_offset, new_offset, base_offset;
@ -383,7 +383,7 @@ static FT_Error Load_AttachList( HB_AttachList* al,
cur_offset = FILE_Pos();
if ( FILE_Seek( new_offset ) ||
( error = _HB_OPEN_Load_Coverage( &al->Coverage, stream ) ) != FT_Err_Ok )
( error = _HB_OPEN_Load_Coverage( &al->Coverage, stream ) ) != HB_Err_Ok )
return error;
(void)FILE_Seek( cur_offset );
@ -412,14 +412,14 @@ static FT_Error Load_AttachList( HB_AttachList* al,
cur_offset = FILE_Pos();
if ( FILE_Seek( new_offset ) ||
( error = Load_AttachPoint( &ap[n], stream ) ) != FT_Err_Ok )
( error = Load_AttachPoint( &ap[n], stream ) ) != HB_Err_Ok )
goto Fail1;
(void)FILE_Seek( cur_offset );
}
al->loaded = TRUE;
return FT_Err_Ok;
return HB_Err_Ok;
Fail1:
for ( m = 0; m < n; m++ )
@ -470,10 +470,10 @@ static void Free_AttachList( HB_AttachList* al,
/* CaretValueFormat3 */
/* CaretValueFormat4 */
static FT_Error Load_CaretValue( HB_CaretValue* cv,
static HB_Error Load_CaretValue( HB_CaretValue* cv,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
FT_ULong cur_offset, new_offset, base_offset;
@ -522,7 +522,7 @@ static FT_Error Load_CaretValue( HB_CaretValue* cv,
cur_offset = FILE_Pos();
if ( FILE_Seek( new_offset ) ||
( error = _HB_OPEN_Load_Device( &cv->cvf.cvf3.Device,
stream ) ) != FT_Err_Ok )
stream ) ) != HB_Err_Ok )
return error;
(void)FILE_Seek( cur_offset );
@ -538,10 +538,10 @@ static FT_Error Load_CaretValue( HB_CaretValue* cv,
break;
default:
return HB_Err_Invalid_GDEF_SubTable_Format;
return _hb_err(HB_Err_Invalid_GDEF_SubTable_Format);
}
return FT_Err_Ok;
return HB_Err_Ok;
}
@ -555,11 +555,11 @@ static void Free_CaretValue( HB_CaretValue* cv,
/* LigGlyph */
static FT_Error Load_LigGlyph( HB_LigGlyph* lg,
static HB_Error Load_LigGlyph( HB_LigGlyph* lg,
FT_Stream stream )
{
FT_Memory memory = stream->memory;
FT_Error error;
HB_Error error;
FT_UShort n, m, count;
FT_ULong cur_offset, new_offset, base_offset;
@ -594,12 +594,12 @@ static FT_Error Load_LigGlyph( HB_LigGlyph* lg,
cur_offset = FILE_Pos();
if ( FILE_Seek( new_offset ) ||
( error = Load_CaretValue( &cv[n], stream ) ) != FT_Err_Ok )
( error = Load_CaretValue( &cv[n], stream ) ) != HB_Err_Ok )
goto Fail;
(void)FILE_Seek( cur_offset );
}
return FT_Err_Ok;
return HB_Err_Ok;
Fail:
for ( m = 0; m < n; m++ )
@ -633,11 +633,11 @@ static void Free_LigGlyph( HB_LigGlyph* lg,
/* LigCaretList */
static FT_Error Load_LigCaretList( HB_LigCaretList* lcl,
static HB_Error Load_LigCaretList( HB_LigCaretList* lcl,
FT_Stream stream )
{
FT_Memory memory = stream->memory;
FT_Error error;
HB_Error error;
FT_UShort m, n, count;
FT_ULong cur_offset, new_offset, base_offset;
@ -656,7 +656,7 @@ static FT_Error Load_LigCaretList( HB_LigCaretList* lcl,
cur_offset = FILE_Pos();
if ( FILE_Seek( new_offset ) ||
( error = _HB_OPEN_Load_Coverage( &lcl->Coverage, stream ) ) != FT_Err_Ok )
( error = _HB_OPEN_Load_Coverage( &lcl->Coverage, stream ) ) != HB_Err_Ok )
return error;
(void)FILE_Seek( cur_offset );
@ -685,14 +685,14 @@ static FT_Error Load_LigCaretList( HB_LigCaretList* lcl,
cur_offset = FILE_Pos();
if ( FILE_Seek( new_offset ) ||
( error = Load_LigGlyph( &lg[n], stream ) ) != FT_Err_Ok )
( error = Load_LigGlyph( &lg[n], stream ) ) != HB_Err_Ok )
goto Fail1;
(void)FILE_Seek( cur_offset );
}
lcl->loaded = TRUE;
return FT_Err_Ok;
return HB_Err_Ok;
Fail1:
for ( m = 0; m < n; m++ )
@ -778,17 +778,17 @@ static FT_UShort Get_New_Class( HB_GDEFHeader* gdef,
FT_Error HB_GDEF_Get_Glyph_Property( HB_GDEFHeader* gdef,
HB_Error HB_GDEF_Get_Glyph_Property( HB_GDEFHeader* gdef,
FT_UShort glyphID,
FT_UShort* property )
{
FT_UShort class, index;
FT_Error error;
HB_Error error;
if ( !gdef || !property )
return FT_Err_Invalid_Argument;
return HB_Err_Invalid_Argument;
/* first, we check for mark attach classes */
@ -800,7 +800,7 @@ FT_Error HB_GDEF_Get_Glyph_Property( HB_GDEFHeader* gdef,
if ( !error )
{
*property = class << 8;
return FT_Err_Ok;
return HB_Err_Ok;
}
}
@ -816,6 +816,7 @@ FT_Error HB_GDEF_Get_Glyph_Property( HB_GDEFHeader* gdef,
switch ( class )
{
default:
case UNCLASSIFIED_GLYPH:
*property = 0;
break;
@ -837,17 +838,17 @@ FT_Error HB_GDEF_Get_Glyph_Property( HB_GDEFHeader* gdef,
break;
}
return FT_Err_Ok;
return HB_Err_Ok;
}
static FT_Error Make_ClassRange( HB_ClassDefinition* cd,
static HB_Error Make_ClassRange( HB_ClassDefinition* cd,
FT_UShort start,
FT_UShort end,
FT_UShort class,
FT_Memory memory )
{
FT_Error error;
HB_Error error;
FT_UShort index;
HB_ClassDefFormat2* cdf2;
@ -873,12 +874,12 @@ static FT_Error Make_ClassRange( HB_ClassDefinition* cd,
cd->Defined[class] = TRUE;
return FT_Err_Ok;
return HB_Err_Ok;
}
FT_Error HB_GDEF_Build_ClassDefinition( HB_GDEFHeader* gdef,
HB_Error HB_GDEF_Build_ClassDefinition( HB_GDEFHeader* gdef,
FT_UShort num_glyphs,
FT_UShort glyph_count,
FT_UShort* glyph_array,
@ -886,7 +887,7 @@ FT_Error HB_GDEF_Build_ClassDefinition( HB_GDEFHeader* gdef,
{
FT_UShort start, curr_glyph, curr_class;
FT_UShort n, m, count;
FT_Error error;
HB_Error error;
FT_Memory memory;
HB_ClassDefinition* gcd;
@ -895,7 +896,7 @@ FT_Error HB_GDEF_Build_ClassDefinition( HB_GDEFHeader* gdef,
if ( !gdef || !glyph_array || !class_array )
return FT_Err_Invalid_Argument;
return HB_Err_Invalid_Argument;
memory = gdef->memory;
gcd = &gdef->GlyphClassDef;
@ -918,13 +919,13 @@ FT_Error HB_GDEF_Build_ClassDefinition( HB_GDEFHeader* gdef,
if ( curr_class >= 5 )
{
error = FT_Err_Invalid_Argument;
error = HB_Err_Invalid_Argument;
goto Fail4;
}
glyph_count--;
for ( n = 0; n <= glyph_count; n++ )
for ( n = 0; n < glyph_count + 1; n++ )
{
if ( curr_glyph == glyph_array[n] && curr_class == class_array[n] )
{
@ -933,14 +934,14 @@ FT_Error HB_GDEF_Build_ClassDefinition( HB_GDEFHeader* gdef,
if ( ( error = Make_ClassRange( gcd, start,
curr_glyph,
curr_class,
memory ) ) != FT_Err_Ok )
memory ) ) != HB_Err_Ok )
goto Fail3;
}
else
{
if ( curr_glyph == 0xFFFF )
{
error = FT_Err_Invalid_Argument;
error = HB_Err_Invalid_Argument;
goto Fail3;
}
else
@ -952,12 +953,12 @@ FT_Error HB_GDEF_Build_ClassDefinition( HB_GDEFHeader* gdef,
if ( ( error = Make_ClassRange( gcd, start,
curr_glyph - 1,
curr_class,
memory ) ) != FT_Err_Ok )
memory ) ) != HB_Err_Ok )
goto Fail3;
if ( curr_glyph > glyph_array[n] )
{
error = FT_Err_Invalid_Argument;
error = HB_Err_Invalid_Argument;
goto Fail3;
}
@ -967,7 +968,7 @@ FT_Error HB_GDEF_Build_ClassDefinition( HB_GDEFHeader* gdef,
if ( curr_class >= 5 )
{
error = FT_Err_Invalid_Argument;
error = HB_Err_Invalid_Argument;
goto Fail3;
}
@ -976,14 +977,14 @@ FT_Error HB_GDEF_Build_ClassDefinition( HB_GDEFHeader* gdef,
if ( ( error = Make_ClassRange( gcd, start,
curr_glyph,
curr_class,
memory ) ) != FT_Err_Ok )
memory ) ) != HB_Err_Ok )
goto Fail3;
}
else
{
if ( curr_glyph == 0xFFFF )
{
error = FT_Err_Invalid_Argument;
error = HB_Err_Invalid_Argument;
goto Fail3;
}
else
@ -1046,7 +1047,7 @@ FT_Error HB_GDEF_Build_ClassDefinition( HB_GDEFHeader* gdef,
gcd->loaded = TRUE;
return FT_Err_Ok;
return HB_Err_Ok;
Fail1:
for ( m = 0; m < n; m++ )
@ -1084,11 +1085,11 @@ static void Free_NewGlyphClasses( HB_GDEFHeader* gdef,
}
FT_Error _HB_GDEF_Add_Glyph_Property( HB_GDEFHeader* gdef,
HB_Error _HB_GDEF_Add_Glyph_Property( HB_GDEFHeader* gdef,
FT_UShort glyphID,
FT_UShort property )
{
FT_Error error;
HB_Error error;
FT_UShort class, new_class, index;
FT_UShort byte, bits, mask;
FT_UShort array_index, glyph_index, count;
@ -1129,7 +1130,7 @@ FT_Error _HB_GDEF_Add_Glyph_Property( HB_GDEFHeader* gdef,
break;
default:
return FT_Err_Invalid_Argument;
return HB_Err_Invalid_Argument;
}
count = gdef->GlyphClassDef.cd.cd2.ClassRangeCount;
@ -1165,16 +1166,16 @@ FT_Error _HB_GDEF_Add_Glyph_Property( HB_GDEFHeader* gdef,
ngc[array_index][glyph_index / 4] |= bits;
}
return FT_Err_Ok;
return HB_Err_Ok;
}
FT_Error _HB_GDEF_Check_Property( HB_GDEFHeader* gdef,
HB_Error _HB_GDEF_Check_Property( HB_GDEFHeader* gdef,
HB_GlyphItem gitem,
FT_UShort flags,
FT_UShort* property )
{
FT_Error error;
HB_Error error;
if ( gdef )
{
@ -1221,7 +1222,7 @@ FT_Error _HB_GDEF_Check_Property( HB_GDEFHeader* gdef,
*property = 0;
}
return FT_Err_Ok;
return HB_Err_Ok;
}

10
src/harfbuzz-gdef.h
View File

@ -100,22 +100,22 @@ typedef struct HB_GDEFHeader_ HB_GDEFHeader;
typedef struct HB_GDEFHeader_* HB_GDEF;
FT_Error HB_New_GDEF_Table( FT_Face face,
HB_Error HB_New_GDEF_Table( FT_Face face,
HB_GDEFHeader** retptr );
FT_Error HB_Load_GDEF_Table( FT_Face face,
HB_Error HB_Load_GDEF_Table( FT_Face face,
HB_GDEFHeader** gdef );
FT_Error HB_Done_GDEF_Table ( HB_GDEFHeader* gdef );
HB_Error HB_Done_GDEF_Table ( HB_GDEFHeader* gdef );
FT_Error HB_GDEF_Get_Glyph_Property( HB_GDEFHeader* gdef,
HB_Error HB_GDEF_Get_Glyph_Property( HB_GDEFHeader* gdef,
FT_UShort glyphID,
FT_UShort* property );
FT_Error HB_GDEF_Build_ClassDefinition( HB_GDEFHeader* gdef,
HB_Error HB_GDEF_Build_ClassDefinition( HB_GDEFHeader* gdef,
FT_UShort num_glyphs,
FT_UShort glyph_count,
FT_UShort* glyph_array,

2
src/harfbuzz-gpos-private.h
View File

@ -670,7 +670,7 @@ typedef union HB_GPOS_SubTable_ HB_GPOS_SubTable;
FT_Error _HB_GPOS_Load_SubTable( HB_GPOS_SubTable* st,
HB_Error _HB_GPOS_Load_SubTable( HB_GPOS_SubTable* st,
FT_Stream stream,
FT_UShort lookup_type );

810
src/harfbuzz-gpos.c
View File

File diff suppressed because it is too large Load Diff

30
src/harfbuzz-gpos.h
View File

@ -48,7 +48,7 @@ FT_BEGIN_HEADER
_glyph = HANDLE_Glyph( glyph ) */
typedef FT_Error (*HB_GlyphFunction)(FT_Face face,
typedef HB_Error (*HB_GlyphFunction)(FT_Face face,
FT_UInt glyphIndex,
FT_Int loadFlags );
@ -64,7 +64,7 @@ typedef FT_Error (*HB_GlyphFunction)(FT_Face face,
`metric_value' must be returned as a scaled value (but shouldn't
be rounded). */
typedef FT_Error (*HB_MMFunction)(FT_Face face,
typedef HB_Error (*HB_MMFunction)(FT_Face face,
FT_UShort metric_id,
FT_Pos* metric_value,
void* data );
@ -99,56 +99,56 @@ typedef struct HB_GPOSHeader_ HB_GPOSHeader;
typedef HB_GPOSHeader* HB_GPOS;
FT_Error HB_Load_GPOS_Table( FT_Face face,
HB_Error HB_Load_GPOS_Table( FT_Face face,
HB_GPOSHeader** gpos,
HB_GDEFHeader* gdef );
FT_Error HB_Done_GPOS_Table( HB_GPOSHeader* gpos );
HB_Error HB_Done_GPOS_Table( HB_GPOSHeader* gpos );
FT_Error HB_GPOS_Select_Script( HB_GPOSHeader* gpos,
HB_Error HB_GPOS_Select_Script( HB_GPOSHeader* gpos,
FT_ULong script_tag,
FT_UShort* script_index );
FT_Error HB_GPOS_Select_Language( HB_GPOSHeader* gpos,
HB_Error HB_GPOS_Select_Language( HB_GPOSHeader* gpos,
FT_ULong language_tag,
FT_UShort script_index,
FT_UShort* language_index,
FT_UShort* req_feature_index );
FT_Error HB_GPOS_Select_Feature( HB_GPOSHeader* gpos,
HB_Error HB_GPOS_Select_Feature( HB_GPOSHeader* gpos,
FT_ULong feature_tag,
FT_UShort script_index,
FT_UShort language_index,
FT_UShort* feature_index );
FT_Error HB_GPOS_Query_Scripts( HB_GPOSHeader* gpos,
HB_Error HB_GPOS_Query_Scripts( HB_GPOSHeader* gpos,
FT_ULong** script_tag_list );
FT_Error HB_GPOS_Query_Languages( HB_GPOSHeader* gpos,
HB_Error HB_GPOS_Query_Languages( HB_GPOSHeader* gpos,
FT_UShort script_index,
FT_ULong** language_tag_list );
FT_Error HB_GPOS_Query_Features( HB_GPOSHeader* gpos,
HB_Error HB_GPOS_Query_Features( HB_GPOSHeader* gpos,
FT_UShort script_index,
FT_UShort language_index,
FT_ULong** feature_tag_list );
FT_Error HB_GPOS_Add_Feature( HB_GPOSHeader* gpos,
HB_Error HB_GPOS_Add_Feature( HB_GPOSHeader* gpos,
FT_UShort feature_index,
FT_UInt property );
FT_Error HB_GPOS_Clear_Features( HB_GPOSHeader* gpos );
HB_Error HB_GPOS_Clear_Features( HB_GPOSHeader* gpos );
FT_Error HB_GPOS_Register_Glyph_Function( HB_GPOSHeader* gpos,
HB_Error HB_GPOS_Register_Glyph_Function( HB_GPOSHeader* gpos,
HB_GlyphFunction gfunc );
FT_Error HB_GPOS_Register_MM_Function( HB_GPOSHeader* gpos,
HB_Error HB_GPOS_Register_MM_Function( HB_GPOSHeader* gpos,
HB_MMFunction mmfunc,
void* data );
@ -156,7 +156,7 @@ FT_Error HB_GPOS_Register_MM_Function( HB_GPOSHeader* gpos,
tables are ignored -- you will get device independent values. */
FT_Error HB_GPOS_Apply_String( FT_Face face,
HB_Error HB_GPOS_Apply_String( FT_Face face,
HB_GPOSHeader* gpos,
FT_UShort load_flags,
HB_Buffer buffer,

2
src/harfbuzz-gsub-private.h
View File

@ -435,7 +435,7 @@ union HB_GSUB_SubTable_
FT_Error _HB_GSUB_Load_SubTable( HB_GSUB_SubTable* st,
HB_Error _HB_GSUB_Load_SubTable( HB_GSUB_SubTable* st,
FT_Stream stream,
FT_UShort lookup_type );

927
src/harfbuzz-gsub.c
View File

File diff suppressed because it is too large Load Diff

24
src/harfbuzz-gsub.h
View File

@ -73,57 +73,57 @@ typedef struct HB_GSUBHeader_ HB_GSUBHeader;
typedef HB_GSUBHeader* HB_GSUB;
FT_Error HB_Load_GSUB_Table( FT_Face face,
HB_Error HB_Load_GSUB_Table( FT_Face face,
HB_GSUBHeader** gsub,
HB_GDEFHeader* gdef );
FT_Error HB_Done_GSUB_Table( HB_GSUBHeader* gsub );
HB_Error HB_Done_GSUB_Table( HB_GSUBHeader* gsub );
FT_Error HB_GSUB_Select_Script( HB_GSUBHeader* gsub,
HB_Error HB_GSUB_Select_Script( HB_GSUBHeader* gsub,
FT_ULong script_tag,
FT_UShort* script_index );
FT_Error HB_GSUB_Select_Language( HB_GSUBHeader* gsub,
HB_Error HB_GSUB_Select_Language( HB_GSUBHeader* gsub,
FT_ULong language_tag,
FT_UShort script_index,
FT_UShort* language_index,
FT_UShort* req_feature_index );
FT_Error HB_GSUB_Select_Feature( HB_GSUBHeader* gsub,
HB_Error HB_GSUB_Select_Feature( HB_GSUBHeader* gsub,
FT_ULong feature_tag,
FT_UShort script_index,
FT_UShort language_index,
FT_UShort* feature_index );
FT_Error HB_GSUB_Query_Scripts( HB_GSUBHeader* gsub,
HB_Error HB_GSUB_Query_Scripts( HB_GSUBHeader* gsub,
FT_ULong** script_tag_list );
FT_Error HB_GSUB_Query_Languages( HB_GSUBHeader* gsub,
HB_Error HB_GSUB_Query_Languages( HB_GSUBHeader* gsub,
FT_UShort script_index,
FT_ULong** language_tag_list );
FT_Error HB_GSUB_Query_Features( HB_GSUBHeader* gsub,
HB_Error HB_GSUB_Query_Features( HB_GSUBHeader* gsub,
FT_UShort script_index,
FT_UShort language_index,
FT_ULong** feature_tag_list );
FT_Error HB_GSUB_Add_Feature( HB_GSUBHeader* gsub,
HB_Error HB_GSUB_Add_Feature( HB_GSUBHeader* gsub,
FT_UShort feature_index,
FT_UInt property );
FT_Error HB_GSUB_Clear_Features( HB_GSUBHeader* gsub );
HB_Error HB_GSUB_Clear_Features( HB_GSUBHeader* gsub );
FT_Error HB_GSUB_Register_Alternate_Function( HB_GSUBHeader* gsub,
HB_Error HB_GSUB_Register_Alternate_Function( HB_GSUBHeader* gsub,
HB_AltFunction altfunc,
void* data );
FT_Error HB_GSUB_Apply_String( HB_GSUBHeader* gsub,
HB_Error HB_GSUB_Apply_String( HB_GSUBHeader* gsub,
HB_Buffer buffer );

22
src/harfbuzz-impl.h
View File

@ -63,20 +63,24 @@ FT_BEGIN_HEADER
#define OUT_GLYPH( pos ) (buffer->out_string[(pos)].gindex)
#define OUT_ITEM( pos ) (&buffer->out_string[(pos)])
#define CHECK_Property( gdef, index, flags, property ) \
( ( error = _HB_GDEF_Check_Property( (gdef), (index), (flags), \
(property) ) ) != FT_Err_Ok )
#define CHECK_Property( gdef, index, flags, property ) \
( ( error = _HB_GDEF_Check_Property( (gdef), (index), (flags), \
(property) ) ) != HB_Err_Ok )
#define ADD_String( buffer, num_in, num_out, glyph_data, component, ligID ) \
( ( error = hb_buffer_add_output_glyphs( (buffer), \
( ( error = hb_buffer_add_output_glyphs( (buffer), \
(num_in), (num_out), \
(glyph_data), (component), (ligID) \
) ) != FT_Err_Ok )
#define ADD_Glyph( buffer, glyph_index, component, ligID ) \
) ) != HB_Err_Ok )
#define ADD_Glyph( buffer, glyph_index, component, ligID ) \
( ( error = hb_buffer_add_output_glyph( (buffer), \
(glyph_index), (component), (ligID) \
) ) != FT_Err_Ok )
(glyph_index), (component), (ligID) \
) ) != HB_Err_Ok )
#define REPLACE_Glyph( buffer, glyph_index, nesting_level ) \
( ( error = hb_buffer_replace_output_glyph( (buffer), (glyph_index), \
(nesting_level) == 1 ) ) != HB_Err_Ok )
#define COPY_Glyph( buffer ) \
( (error = hb_buffer_copy_output_glyph ( buffer ) ) != HB_Err_Ok )
FT_END_HEADER

20
src/harfbuzz-open-private.h
View File

@ -30,22 +30,22 @@ struct HB_SubTable_
};
FT_Error _HB_OPEN_Load_ScriptList( HB_ScriptList* sl,
HB_Error _HB_OPEN_Load_ScriptList( HB_ScriptList* sl,
FT_Stream stream );
FT_Error _HB_OPEN_Load_FeatureList( HB_FeatureList* fl,
HB_Error _HB_OPEN_Load_FeatureList( HB_FeatureList* fl,
FT_Stream input );
FT_Error _HB_OPEN_Load_LookupList( HB_LookupList* ll,
HB_Error _HB_OPEN_Load_LookupList( HB_LookupList* ll,
FT_Stream input,
HB_Type type );
FT_Error _HB_OPEN_Load_Coverage( HB_Coverage* c,
HB_Error _HB_OPEN_Load_Coverage( HB_Coverage* c,
FT_Stream input );
FT_Error _HB_OPEN_Load_ClassDefinition( HB_ClassDefinition* cd,
HB_Error _HB_OPEN_Load_ClassDefinition( HB_ClassDefinition* cd,
FT_UShort limit,
FT_Stream input );
FT_Error _HB_OPEN_Load_EmptyClassDefinition( HB_ClassDefinition* cd,
HB_Error _HB_OPEN_Load_EmptyClassDefinition( HB_ClassDefinition* cd,
FT_Stream input );
FT_Error _HB_OPEN_Load_Device( HB_Device* d,
HB_Error _HB_OPEN_Load_Device( HB_Device* d,
FT_Stream input );
void _HB_OPEN_Free_ScriptList( HB_ScriptList* sl,
@ -65,14 +65,14 @@ void _HB_OPEN_Free_Device( HB_Device* d,
FT_Error _HB_OPEN_Coverage_Index( HB_Coverage* c,
HB_Error _HB_OPEN_Coverage_Index( HB_Coverage* c,
FT_UShort glyphID,
FT_UShort* index );
FT_Error _HB_OPEN_Get_Class( HB_ClassDefinition* cd,
HB_Error _HB_OPEN_Get_Class( HB_ClassDefinition* cd,
FT_UShort glyphID,
FT_UShort* class,
FT_UShort* index );
FT_Error _HB_OPEN_Get_Device( HB_Device* d,
HB_Error _HB_OPEN_Get_Device( HB_Device* d,
FT_UShort size,
FT_Short* value );

238
src/harfbuzz-open.c
View File

@ -21,10 +21,10 @@
/* LangSys */
static FT_Error Load_LangSys( HB_LangSys* ls,
static HB_Error Load_LangSys( HB_LangSys* ls,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
FT_Memory memory = stream->memory;
FT_UShort n, count;
FT_UShort* fi;
@ -57,7 +57,7 @@ static FT_Error Load_LangSys( HB_LangSys* ls,
FORGET_Frame();
return FT_Err_Ok;
return HB_Err_Ok;
}
@ -70,10 +70,10 @@ static void Free_LangSys( HB_LangSys* ls,
/* Script */
static FT_Error Load_Script( HB_Script* s,
static HB_Error Load_Script( HB_Script* s,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
FT_Memory memory = stream->memory;
FT_UShort n, m, count;
FT_ULong cur_offset, new_offset, base_offset;
@ -95,7 +95,7 @@ static FT_Error Load_Script( HB_Script* s,
cur_offset = FILE_Pos();
if ( FILE_Seek( new_offset ) ||
( error = Load_LangSys( &s->DefaultLangSys,
stream ) ) != FT_Err_Ok )
stream ) ) != HB_Err_Ok )
return error;
(void)FILE_Seek( cur_offset );
}
@ -144,12 +144,12 @@ static FT_Error Load_Script( HB_Script* s,
cur_offset = FILE_Pos();
if ( FILE_Seek( new_offset ) ||
( error = Load_LangSys( &lsr[n].LangSys, stream ) ) != FT_Err_Ok )
( error = Load_LangSys( &lsr[n].LangSys, stream ) ) != HB_Err_Ok )
goto Fail1;
(void)FILE_Seek( cur_offset );
}
return FT_Err_Ok;
return HB_Err_Ok;
Fail1:
for ( m = 0; m < n; m++ )
@ -188,10 +188,10 @@ static void Free_Script( HB_Script* s,
/* ScriptList */
FT_Error _HB_OPEN_Load_ScriptList( HB_ScriptList* sl,
HB_Error _HB_OPEN_Load_ScriptList( HB_ScriptList* sl,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
FT_Memory memory = stream->memory;
FT_UShort n, script_count;
@ -233,7 +233,7 @@ FT_Error _HB_OPEN_Load_ScriptList( HB_ScriptList* sl,
goto Fail;
error = Load_Script( &sr[sl->ScriptCount].Script, stream );
if ( error == FT_Err_Ok )
if ( error == HB_Err_Ok )
sl->ScriptCount += 1;
else if ( error != HB_Err_Empty_Script )
goto Fail;
@ -247,12 +247,12 @@ FT_Error _HB_OPEN_Load_ScriptList( HB_ScriptList* sl,
#if 0
if ( sl->ScriptCount == 0 )
{
error = HB_Err_Invalid_SubTable;
error = _hb_err(HB_Err_Invalid_SubTable);
goto Fail;
}
#endif
return FT_Err_Ok;
return HB_Err_Ok;
Fail:
for ( n = 0; n < sl->ScriptCount; n++ )
@ -292,10 +292,10 @@ void _HB_OPEN_Free_ScriptList( HB_ScriptList* sl,
/* Feature */
static FT_Error Load_Feature( HB_Feature* f,
static HB_Error Load_Feature( HB_Feature* f,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
FT_Memory memory = stream->memory;
FT_UShort n, count;
@ -329,7 +329,7 @@ static FT_Error Load_Feature( HB_Feature* f,
FORGET_Frame();
return FT_Err_Ok;
return HB_Err_Ok;
}
@ -342,10 +342,10 @@ static void Free_Feature( HB_Feature* f,
/* FeatureList */
FT_Error _HB_OPEN_Load_FeatureList( HB_FeatureList* fl,
HB_Error _HB_OPEN_Load_FeatureList( HB_FeatureList* fl,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
FT_Memory memory = stream->memory;
FT_UShort n, m, count;
@ -386,12 +386,12 @@ FT_Error _HB_OPEN_Load_FeatureList( HB_FeatureList* fl,
cur_offset = FILE_Pos();
if ( FILE_Seek( new_offset ) ||
( error = Load_Feature( &fr[n].Feature, stream ) ) != FT_Err_Ok )
( error = Load_Feature( &fr[n].Feature, stream ) ) != HB_Err_Ok )
goto Fail1;
(void)FILE_Seek( cur_offset );
}
return FT_Err_Ok;
return HB_Err_Ok;
Fail1:
for ( m = 0; m < n; m++ )
@ -440,7 +440,7 @@ void _HB_OPEN_Free_FeatureList( HB_FeatureList* fl,
/* SubTable */
static FT_Error Load_SubTable( HB_SubTable* st,
static HB_Error Load_SubTable( HB_SubTable* st,
FT_Stream stream,
HB_Type table_type,
FT_UShort lookup_type )
@ -466,11 +466,11 @@ static void Free_SubTable( HB_SubTable* st,
/* Lookup */
static FT_Error Load_Lookup( HB_Lookup* l,
static HB_Error Load_Lookup( HB_Lookup* l,
FT_Stream stream,
HB_Type type )
{
FT_Error error;
HB_Error error;
FT_Memory memory = stream->memory;
FT_UShort n, m, count;
@ -530,12 +530,12 @@ static FT_Error Load_Lookup( HB_Lookup* l,
if ( FILE_Seek( new_offset ) ||
( error = Load_SubTable( &st[n], stream,
type, l->LookupType ) ) != FT_Err_Ok )
type, l->LookupType ) ) != HB_Err_Ok )
goto Fail;
(void)FILE_Seek( cur_offset );
}
return FT_Err_Ok;
return HB_Err_Ok;
Fail:
for ( m = 0; m < n; m++ )
@ -570,11 +570,11 @@ static void Free_Lookup( HB_Lookup* l,
/* LookupList */
FT_Error _HB_OPEN_Load_LookupList( HB_LookupList* ll,
HB_Error _HB_OPEN_Load_LookupList( HB_LookupList* ll,
FT_Stream stream,
HB_Type type )
{
FT_Error error;
HB_Error error;
FT_Memory memory = stream->memory;
FT_UShort n, m, count;
@ -612,12 +612,12 @@ FT_Error _HB_OPEN_Load_LookupList( HB_LookupList* ll,
cur_offset = FILE_Pos();
if ( FILE_Seek( new_offset ) ||
( error = Load_Lookup( &l[n], stream, type ) ) != FT_Err_Ok )
( error = Load_Lookup( &l[n], stream, type ) ) != HB_Err_Ok )
goto Fail1;
(void)FILE_Seek( cur_offset );
}
return FT_Err_Ok;
return HB_Err_Ok;
Fail1:
FREE( ll->Properties );
@ -663,10 +663,10 @@ void _HB_OPEN_Free_LookupList( HB_LookupList* ll,
/* CoverageFormat1 */
static FT_Error Load_Coverage1( HB_CoverageFormat1* cf1,
static HB_Error Load_Coverage1( HB_CoverageFormat1* cf1,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
FT_Memory memory = stream->memory;
FT_UShort n, count;
@ -699,7 +699,7 @@ static FT_Error Load_Coverage1( HB_CoverageFormat1* cf1,
FORGET_Frame();
return FT_Err_Ok;
return HB_Err_Ok;
}
@ -712,10 +712,10 @@ static void Free_Coverage1( HB_CoverageFormat1* cf1,
/* CoverageFormat2 */
static FT_Error Load_Coverage2( HB_CoverageFormat2* cf2,
static HB_Error Load_Coverage2( HB_CoverageFormat2* cf2,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
FT_Memory memory = stream->memory;
FT_UShort n, count;
@ -751,14 +751,14 @@ static FT_Error Load_Coverage2( HB_CoverageFormat2* cf2,
( rr[n].End - rr[n].Start + (long)rr[n].StartCoverageIndex ) >=
0x10000L )
{
error = HB_Err_Invalid_SubTable;
error = _hb_err(HB_Err_Invalid_SubTable);
goto Fail;
}
}
FORGET_Frame();
return FT_Err_Ok;
return HB_Err_Ok;
Fail:
FREE( cf2->RangeRecord );
@ -773,10 +773,10 @@ static void Free_Coverage2( HB_CoverageFormat2* cf2,
}
FT_Error _HB_OPEN_Load_Coverage( HB_Coverage* c,
HB_Error _HB_OPEN_Load_Coverage( HB_Coverage* c,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
if ( ACCESS_Frame( 2L ) )
return error;
@ -787,17 +787,12 @@ FT_Error _HB_OPEN_Load_Coverage( HB_Coverage* c,
switch ( c->CoverageFormat )
{
case 1:
return Load_Coverage1( &c->cf.cf1, stream );
case 2:
return Load_Coverage2( &c->cf.cf2, stream );
default:
return HB_Err_Invalid_SubTable_Format;
case 1: return Load_Coverage1( &c->cf.cf1, stream );
case 2: return Load_Coverage2( &c->cf.cf2, stream );
default: return _hb_err(HB_Err_Invalid_SubTable_Format);
}
return FT_Err_Ok; /* never reached */
return HB_Err_Ok; /* never reached */
}
@ -806,18 +801,14 @@ void _HB_OPEN_Free_Coverage( HB_Coverage* c,
{
switch ( c->CoverageFormat )
{
case 1:
Free_Coverage1( &c->cf.cf1, memory );
break;
case 2:
Free_Coverage2( &c->cf.cf2, memory );
break;
case 1: Free_Coverage1( &c->cf.cf1, memory ); break;
case 2: Free_Coverage2( &c->cf.cf2, memory ); break;
default: break;
}
}
static FT_Error Coverage_Index1( HB_CoverageFormat1* cf1,
static HB_Error Coverage_Index1( HB_CoverageFormat1* cf1,
FT_UShort glyphID,
FT_UShort* index )
{
@ -847,7 +838,7 @@ static FT_Error Coverage_Index1( HB_CoverageFormat1* cf1,
if ( glyphID == array[middle] )
{
*index = middle;
return FT_Err_Ok;
return HB_Err_Ok;
}
else if ( glyphID < array[middle] )
{
@ -867,7 +858,7 @@ static FT_Error Coverage_Index1( HB_CoverageFormat1* cf1,
}
static FT_Error Coverage_Index2( HB_CoverageFormat2* cf2,
static HB_Error Coverage_Index2( HB_CoverageFormat2* cf2,
FT_UShort glyphID,
FT_UShort* index )
{
@ -897,7 +888,7 @@ static FT_Error Coverage_Index2( HB_CoverageFormat2* cf2,
if ( glyphID >= rr[middle].Start && glyphID <= rr[middle].End )
{
*index = rr[middle].StartCoverageIndex + glyphID - rr[middle].Start;
return FT_Err_Ok;
return HB_Err_Ok;
}
else if ( glyphID < rr[middle].Start )
{
@ -917,23 +908,18 @@ static FT_Error Coverage_Index2( HB_CoverageFormat2* cf2,
}
FT_Error _HB_OPEN_Coverage_Index( HB_Coverage* c,
HB_Error _HB_OPEN_Coverage_Index( HB_Coverage* c,
FT_UShort glyphID,
FT_UShort* index )
{
switch ( c->CoverageFormat )
{
case 1:
return Coverage_Index1( &c->cf.cf1, glyphID, index );
case 2:
return Coverage_Index2( &c->cf.cf2, glyphID, index );
default:
return HB_Err_Invalid_SubTable_Format;
case 1: return Coverage_Index1( &c->cf.cf1, glyphID, index );
case 2: return Coverage_Index2( &c->cf.cf2, glyphID, index );
default: return _hb_err(HB_Err_Invalid_SubTable_Format);
}
return FT_Err_Ok; /* never reached */
return HB_Err_Ok; /* never reached */
}
@ -945,11 +931,11 @@ FT_Error _HB_OPEN_Coverage_Index( HB_Coverage* c,
/* ClassDefFormat1 */
static FT_Error Load_ClassDef1( HB_ClassDefinition* cd,
static HB_Error Load_ClassDef1( HB_ClassDefinition* cd,
FT_UShort limit,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
FT_Memory memory = stream->memory;
FT_UShort n, count;
@ -973,7 +959,7 @@ static FT_Error Load_ClassDef1( HB_ClassDefinition* cd,
/* sanity check; we are limited to 16bit integers */
if ( cdf1->StartGlyph + (long)count >= 0x10000L )
return HB_Err_Invalid_SubTable;
return _hb_err(HB_Err_Invalid_SubTable);
cdf1->ClassValueArray = NULL;
@ -991,7 +977,7 @@ static FT_Error Load_ClassDef1( HB_ClassDefinition* cd,
cva[n] = GET_UShort();
if ( cva[n] >= limit )
{
error = HB_Err_Invalid_SubTable;
error = _hb_err(HB_Err_Invalid_SubTable);
goto Fail;
}
d[cva[n]] = TRUE;
@ -999,7 +985,7 @@ static FT_Error Load_ClassDef1( HB_ClassDefinition* cd,
FORGET_Frame();
return FT_Err_Ok;
return HB_Err_Ok;
Fail:
FREE( cva );
@ -1017,11 +1003,11 @@ static void Free_ClassDef1( HB_ClassDefFormat1* cdf1,
/* ClassDefFormat2 */
static FT_Error Load_ClassDef2( HB_ClassDefinition* cd,
static HB_Error Load_ClassDef2( HB_ClassDefinition* cd,
FT_UShort limit,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
FT_Memory memory = stream->memory;
FT_UShort n, count;
@ -1037,7 +1023,8 @@ static FT_Error Load_ClassDef2( HB_ClassDefinition* cd,
if ( ACCESS_Frame( 2L ) )
return error;
count = cdf2->ClassRangeCount = GET_UShort();
count = GET_UShort();
cdf2->ClassRangeCount = 0; /* zero for now. we fill with the number of good entries later */
FORGET_Frame();
@ -1063,15 +1050,22 @@ static FT_Error Load_ClassDef2( HB_ClassDefinition* cd,
if ( crr[n].Start > crr[n].End ||
crr[n].Class >= limit )
{
error = HB_Err_Invalid_SubTable;
goto Fail;
/* XXX
* Corrupt entry. Skip it.
* This is hit by Nafees Nastaliq font for example
*/
n--;
count--;
}
d[crr[n].Class] = TRUE;
else
d[crr[n].Class] = TRUE;
}
FORGET_Frame();
return FT_Err_Ok;
cdf2->ClassRangeCount = count;
return HB_Err_Ok;
Fail:
FREE( crr );
@ -1089,11 +1083,11 @@ static void Free_ClassDef2( HB_ClassDefFormat2* cdf2,
/* ClassDefinition */
FT_Error _HB_OPEN_Load_ClassDefinition( HB_ClassDefinition* cd,
HB_Error _HB_OPEN_Load_ClassDefinition( HB_ClassDefinition* cd,
FT_UShort limit,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
FT_Memory memory = stream->memory;
@ -1109,17 +1103,9 @@ FT_Error _HB_OPEN_Load_ClassDefinition( HB_ClassDefinition* cd,
switch ( cd->ClassFormat )
{
case 1:
error = Load_ClassDef1( cd, limit, stream );
break;
case 2:
error = Load_ClassDef2( cd, limit, stream );
break;
default:
error = HB_Err_Invalid_SubTable_Format;
break;
case 1: error = Load_ClassDef1( cd, limit, stream ); break;
case 2: error = Load_ClassDef2( cd, limit, stream ); break;
default: error = _hb_err(HB_Err_Invalid_SubTable_Format); break;
}
if ( error )
@ -1127,7 +1113,7 @@ FT_Error _HB_OPEN_Load_ClassDefinition( HB_ClassDefinition* cd,
cd->loaded = TRUE;
return FT_Err_Ok;
return HB_Err_Ok;
Fail:
FREE( cd->Defined );
@ -1135,10 +1121,10 @@ Fail:
}
FT_Error _HB_OPEN_Load_EmptyClassDefinition( HB_ClassDefinition* cd,
HB_Error _HB_OPEN_Load_EmptyClassDefinition( HB_ClassDefinition* cd,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
FT_Memory memory = stream->memory;
@ -1151,7 +1137,7 @@ FT_Error _HB_OPEN_Load_EmptyClassDefinition( HB_ClassDefinition* cd,
if ( ALLOC_ARRAY( cd->cd.cd1.ClassValueArray, 1, FT_UShort ) )
goto Fail;
return FT_Err_Ok;
return HB_Err_Ok;
Fail:
FREE( cd->Defined );
@ -1168,18 +1154,14 @@ void _HB_OPEN_Free_ClassDefinition( HB_ClassDefinition* cd,
switch ( cd->ClassFormat )
{
case 1:
Free_ClassDef1( &cd->cd.cd1, memory );
break;
case 2:
Free_ClassDef2( &cd->cd.cd2, memory );
break;
case 1: Free_ClassDef1( &cd->cd.cd1, memory ); break;
case 2: Free_ClassDef2( &cd->cd.cd2, memory ); break;
default: break;
}
}
static FT_Error Get_Class1( HB_ClassDefFormat1* cdf1,
static HB_Error Get_Class1( HB_ClassDefFormat1* cdf1,
FT_UShort glyphID,
FT_UShort* class,
FT_UShort* index )
@ -1194,7 +1176,7 @@ static FT_Error Get_Class1( HB_ClassDefFormat1* cdf1,
glyphID < cdf1->StartGlyph + cdf1->GlyphCount )
{
*class = cva[glyphID - cdf1->StartGlyph];
return FT_Err_Ok;
return HB_Err_Ok;
}
else
{
@ -1207,12 +1189,12 @@ static FT_Error Get_Class1( HB_ClassDefFormat1* cdf1,
/* we need the index value of the last searched class range record
in case of failure for constructed GDEF tables */
static FT_Error Get_Class2( HB_ClassDefFormat2* cdf2,
static HB_Error Get_Class2( HB_ClassDefFormat2* cdf2,
FT_UShort glyphID,
FT_UShort* class,
FT_UShort* index )
{
FT_Error error = FT_Err_Ok;
HB_Error error = HB_Err_Ok;
FT_UShort min, max, new_min, new_max, middle;
HB_ClassRangeRecord* crr = cdf2->ClassRangeRecord;
@ -1245,7 +1227,7 @@ static FT_Error Get_Class2( HB_ClassDefFormat2* cdf2,
if ( glyphID >= crr[middle].Start && glyphID <= crr[middle].End )
{
*class = crr[middle].Class;
error = FT_Err_Ok;
error = HB_Err_Ok;
break;
}
else if ( glyphID < crr[middle].Start )
@ -1277,24 +1259,19 @@ static FT_Error Get_Class2( HB_ClassDefFormat2* cdf2,
}
FT_Error _HB_OPEN_Get_Class( HB_ClassDefinition* cd,
HB_Error _HB_OPEN_Get_Class( HB_ClassDefinition* cd,
FT_UShort glyphID,
FT_UShort* class,
FT_UShort* index )
{
switch ( cd->ClassFormat )
{
case 1:
return Get_Class1( &cd->cd.cd1, glyphID, class, index );
case 2:
return Get_Class2( &cd->cd.cd2, glyphID, class, index );
default:
return HB_Err_Invalid_SubTable_Format;
case 1: return Get_Class1( &cd->cd.cd1, glyphID, class, index );
case 2: return Get_Class2( &cd->cd.cd2, glyphID, class, index );
default: return _hb_err(HB_Err_Invalid_SubTable_Format);
}
return FT_Err_Ok; /* never reached */
return HB_Err_Ok; /* never reached */
}
@ -1304,10 +1281,10 @@ FT_Error _HB_OPEN_Get_Class( HB_ClassDefinition* cd,
***************************/
FT_Error _HB_OPEN_Load_Device( HB_Device* d,
HB_Error _HB_OPEN_Load_Device( HB_Device* d,
FT_Stream stream )
{
FT_Error error;
HB_Error error;
FT_Memory memory = stream->memory;
FT_UShort n, count;
@ -1324,11 +1301,18 @@ FT_Error _HB_OPEN_Load_Device( HB_Device* d,
FORGET_Frame();
d->DeltaValue = NULL;
if ( d->StartSize > d->EndSize ||
d->DeltaFormat == 0 || d->DeltaFormat > 3 )
return HB_Err_Invalid_SubTable;
d->DeltaValue = NULL;
{
/* XXX
* I've seen fontforge generate DeltaFormat == 0.
* Just return Ok and let the NULL DeltaValue disable
* this table.
*/
return HB_Err_Ok;
}
count = ( ( d->EndSize - d->StartSize + 1 ) >>
( 4 - d->DeltaFormat ) ) + 1;
@ -1349,7 +1333,7 @@ FT_Error _HB_OPEN_Load_Device( HB_Device* d,
FORGET_Frame();
return FT_Err_Ok;
return HB_Err_Ok;
}
@ -1395,7 +1379,7 @@ void _HB_OPEN_Free_Device( HB_Device* d,
mask = 0x00FF */
FT_Error _HB_OPEN_Get_Device( HB_Device* d,
HB_Error _HB_OPEN_Get_Device( HB_Device* d,
FT_UShort size,
FT_Short* value )
{
@ -1418,7 +1402,7 @@ FT_Error _HB_OPEN_Get_Device( HB_Device* d,
if ( *value >= ( ( mask + 1 ) >> 1 ) )
*value -= mask + 1;
return FT_Err_Ok;
return HB_Err_Ok;
}
else
{

13
src/harfbuzz-open.h
View File

@ -25,12 +25,21 @@ FT_BEGIN_HEADER
#define HB_MAX_NESTING_LEVEL 100
typedef FT_Error HB_Error;
#define HB_Err_Invalid_Argument FT_Err_Invalid_Argument
#define HB_Err_Invalid_Face_Handle FT_Err_Invalid_Face_Handle
#define HB_Err_Invalid_Stream_Operation FT_Err_Invalid_Stream_Operation
#define HB_Err_Empty_Script 0x1005
#define HB_Err_Ok FT_Err_Ok
#define HB_Err_Not_Covered 0x1002
#define HB_Err_Out_Of_Memory FT_Err_Out_Of_Memory
#define HB_Err_Table_Missing FT_Err_Table_Missing
#define HB_Err_Invalid_SubTable_Format 0x1000
#define HB_Err_Invalid_SubTable 0x1001
#define HB_Err_Not_Covered 0x1002
#define HB_Err_Too_Many_Nested_Contexts 0x1003
#define HB_Err_No_MM_Interpreter 0x1004
#define HB_Err_Empty_Script 0x1005
/* Script list related structures */