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* Merge the duplicated functions in ftmac.c with ftobjs.c

This commit is contained in:
Suzuki, Toshiya (鈴木俊哉) 2008-10-02 01:43:18 +00:00
parent ce1bad0381
commit f414702e04
5 changed files with 160 additions and 219 deletions
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24
ChangeLog
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@ -1,3 +1,27 @@
2008-10-02 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
* src/base/ftbase.h: New file to declare the private utility
functions shared by the sources of base modules. Currently,
`ft_lookup_PS_in_sfnt' and `open_face_from_buffer' are declared
to share between ftobjs.c and ftmac.c.
* src/base/rule.mk: Add ftbase.h.
* src/base/ftobjs.c: Include ftbase.h.
(memory_stream_close): Build on any platform when old MacOS
font support is enabled.
(new_memory_stream): Ditto.
(open_face_from_buffer): Build on any platform when old MacOS
font support is enabled. The counting of the face in a font
file is slightly different between Carbon-dependent parser and
Carbon-free parser. They are merged with the platform-specific
conditional.
(ft_lookup_PS_in_sfnt): Ditto.
* src/base/ftmac.c: Include ftbase.h.
(memory_stream_close): Removed.
(new_memory_stream): Ditto.
(open_face_from_buffer): Removed. Use the implementation in
ftobjs.c.
(ft_lookup_PS_in_sfnt): Ditto.
2008-10-02 Werner Lemberg <wl@gnu.org>
* src/sfnt/sfobjs.c (sfnt_load_face): `psnames_error' is only needed

54
src/base/ftbase.h Normal file
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@ -0,0 +1,54 @@
/***************************************************************************/
/* */
/* ftbase.h */
/* */
/* The FreeType private functions used in base module (specification). */
/* */
/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2008 by */
/* David Turner, Robert Wilhelm, Werner Lemberg, and suzuki toshiya. */
/* */
/* 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. */
/* */
/***************************************************************************/
#ifndef __FTBASE_H__
#define __FTBASE_H__
#include <ft2build.h>
#include FT_INTERNAL_OBJECTS_H
FT_BEGIN_HEADER
/* Check whether the sfnt image in the buffer is sfnt-wrapped PS Type1 */
/* or sfnt-wrapped CID-keyed font. */
FT_LOCAL_DEF( FT_Error )
ft_lookup_PS_in_sfnt( FT_Byte* sfnt,
FT_ULong* offset,
FT_ULong* length,
FT_Bool* is_sfnt_cid );
/* Create a new FT_Face given a buffer and a driver name. */
/* from ftmac.c */
FT_LOCAL_DEF( FT_Error )
open_face_from_buffer( FT_Library library,
FT_Byte* base,
FT_ULong size,
FT_Long face_index,
const char* driver_name,
FT_Face *aface );
FT_END_HEADER
#endif /* __TTDRIVER_H__ */
/* END */

159
src/base/ftmac.c
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@ -68,6 +68,7 @@
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_INTERNAL_STREAM_H
#include "ftbase.h"
/* This is for Mac OS X. Without redefinition, OS_INLINE */
/* expands to `static inline' which doesn't survive the */
@ -694,109 +695,6 @@
}
/* Finalizer for a memory stream; gets called by FT_Done_Face().
It frees the memory it uses. */
static void
memory_stream_close( FT_Stream stream )
{
FT_Memory memory = stream->memory;
FT_FREE( stream->base );
stream->size = 0;
stream->base = 0;
stream->close = 0;
}
/* Create a new memory stream from a buffer and a size. */
static FT_Error
new_memory_stream( FT_Library library,
FT_Byte* base,
FT_ULong size,
FT_Stream_CloseFunc close,
FT_Stream* astream )
{
FT_Error error;
FT_Memory memory;
FT_Stream stream;
if ( !library )
return FT_Err_Invalid_Library_Handle;
if ( !base )
return FT_Err_Invalid_Argument;
*astream = 0;
memory = library->memory;
if ( FT_NEW( stream ) )
goto Exit;
FT_Stream_OpenMemory( stream, base, size );
stream->close = close;
*astream = stream;
Exit:
return error;
}
/* Create a new FT_Face given a buffer and a driver name. */
static FT_Error
open_face_from_buffer( FT_Library library,
FT_Byte* base,
FT_ULong size,
FT_Long face_index,
const char* driver_name,
FT_Face* aface )
{
FT_Open_Args args;
FT_Error error;
FT_Stream stream;
FT_Memory memory = library->memory;
error = new_memory_stream( library,
base,
size,
memory_stream_close,
&stream );
if ( error )
{
FT_FREE( base );
return error;
}
args.flags = FT_OPEN_STREAM;
args.stream = stream;
if ( driver_name )
{
args.flags = args.flags | FT_OPEN_DRIVER;
args.driver = FT_Get_Module( library, driver_name );
}
/* At this point, face_index has served its purpose; */
/* whoever calls this function has already used it to */
/* locate the correct font data. We should not propagate */
/* this index to FT_Open_Face() (unless it is negative). */
if ( face_index > 0 )
face_index = 0;
error = FT_Open_Face( library, &args, face_index, aface );
if ( error )
FT_Stream_Free( stream, 0 );
else
(*aface)->face_flags &= ~FT_FACE_FLAG_EXTERNAL_STREAM;
return error;
}
/* Create a new FT_Face from a file spec to an LWFN file. */
static FT_Error
FT_New_Face_From_LWFN( FT_Library library,
@ -829,61 +727,6 @@
}
/* Look up `TYP1' or `CID ' table from sfnt table directory. */
/* `offset' and `length' must exclude the binary header in tables. */
/* Type 1 and CID-keyed font drivers should recognize sfnt-wrapped */
/* format too. Here, since we can't expect that the TrueType font */
/* driver is loaded unconditially, we must parse the font by */
/* ourselves. We are only interested in the name of the table and */
/* the offset. */
static FT_Error
ft_lookup_PS_in_sfnt( FT_Byte* sfnt,
FT_ULong* offset,
FT_ULong* length,
FT_Bool* is_sfnt_cid )
{
FT_Byte* p = sfnt + 4; /* skip version `typ1' */
FT_UShort numTables = FT_NEXT_USHORT( p );
p += 2 * 3; /* skip binary search header */
for ( ; numTables > 0 ; numTables -- )
{
FT_ULong tag = FT_NEXT_ULONG( p );
p += 4; /* skip checkSum */
*offset = FT_NEXT_ULONG( p );
*length = FT_NEXT_ULONG( p );
/* see Adobe TN# 5180 for binary header in CID table */
if ( tag == FT_MAKE_TAG( 'C', 'I', 'D', ' ' ) )
{
*offset += 22;
*length -= 22;
*is_sfnt_cid = TRUE;
return FT_Err_Ok;
}
/* see Apple's `The Type 1 GX Font Format' */
if ( tag == FT_MAKE_TAG( 'T', 'Y', 'P', '1' ) )
{
*offset += 24;
*length -= 24;
*is_sfnt_cid = FALSE;
return FT_Err_Ok;
}
}
*offset = 0;
*length = 0;
return FT_Err_Invalid_Table;
}
/* Create a new FT_Face from an SFNT resource, specified by res ID. */
static FT_Error
FT_New_Face_From_SFNT( FT_Library library,

140
src/base/ftobjs.c
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@ -36,6 +36,8 @@
#include FT_SERVICE_KERNING_H
#include FT_SERVICE_TRUETYPE_ENGINE_H
#include "ftbase.h"
#define GRID_FIT_METRICS
FT_BASE_DEF( FT_Pointer )
@ -1167,7 +1169,7 @@
}
#if !defined( FT_MACINTOSH ) && defined( FT_CONFIG_OPTION_MAC_FONTS )
#if defined( FT_CONFIG_OPTION_MAC_FONTS )
/* The behavior here is very similar to that in base/ftmac.c, but it */
/* is designed to work on non-mac systems, so no mac specific calls. */
@ -1251,7 +1253,7 @@
/* Create a new FT_Face given a buffer and a driver name. */
/* from ftmac.c */
static FT_Error
FT_LOCAL_DEF( FT_Error )
open_face_from_buffer( FT_Library library,
FT_Byte* base,
FT_ULong size,
@ -1284,20 +1286,90 @@
args.driver = FT_Get_Module( library, driver_name );
}
#if defined( FT_MACINTOSH )
/* At this point, face_index has served its purpose; */
/* whoever calls this function has already used it to */
/* locate the correct font data. We should not propagate */
/* this index to FT_Open_Face() (unless it is negative). */
if ( face_index > 0 )
face_index = 0;
#endif
error = FT_Open_Face( library, &args, face_index, aface );
if ( error )
if ( error == FT_Err_Ok )
(*aface)->face_flags &= ~FT_FACE_FLAG_EXTERNAL_STREAM;
else
#if defined( FT_MACINTOSH )
FT_Stream_Free( stream, 0 );
#else
{
FT_Stream_Close( stream );
FT_FREE( stream );
}
else
(*aface)->face_flags &= ~FT_FACE_FLAG_EXTERNAL_STREAM;
#endif
return error;
}
/* Look up `TYP1' or `CID ' table from sfnt table directory. */
/* `offset' and `length' must exclude the binary header in tables. */
/* Type 1 and CID-keyed font drivers should recognize sfnt-wrapped */
/* format too. Here, since we can't expect that the TrueType font */
/* driver is loaded unconditially, we must parse the font by */
/* ourselves. We are only interested in the name of the table and */
/* the offset. */
FT_LOCAL_DEF( FT_Error )
ft_lookup_PS_in_sfnt( FT_Byte* sfnt,
FT_ULong* offset,
FT_ULong* length,
FT_Bool* is_sfnt_cid )
{
FT_Byte* p = sfnt + 4; /* skip version `typ1' */
FT_UShort numTables = FT_NEXT_USHORT( p );
p += 2 * 3; /* skip binary search header */
for ( ; numTables > 0 ; numTables -- )
{
FT_ULong tag = FT_NEXT_ULONG( p );
p += 4; /* skip checkSum */
*offset = FT_NEXT_ULONG( p );
*length = FT_NEXT_ULONG( p );
/* see Adobe TN# 5180 for binary header in CID table */
if ( tag == FT_MAKE_TAG( 'C', 'I', 'D', ' ' ) )
{
*offset += 22;
*length -= 22;
*is_sfnt_cid = TRUE;
return FT_Err_Ok;
}
/* see Apple's `The Type 1 GX Font Format' */
if ( tag == FT_MAKE_TAG( 'T', 'Y', 'P', '1' ) )
{
*offset += 24;
*length -= 24;
*is_sfnt_cid = FALSE;
return FT_Err_Ok;
}
}
*offset = 0;
*length = 0;
return FT_Err_Invalid_Table;
}
#if !defined( FT_MACINTOSH ) || defined( DARWIN_NO_CARBON )
/* The resource header says we've got resource_cnt `POST' (type1) */
/* resources in this file. They all need to be coalesced into */
/* one lump which gets passed on to the type1 driver. */
@ -1415,61 +1487,6 @@
}
/* Look up `TYP1' or `CID ' table from sfnt table directory. */
/* `offset' and `length' must exclude the binary header in tables. */
/* Type 1 and CID-keyed font drivers should recognize sfnt-wrapped */
/* format too. Here, since we can't expect that the TrueType font */
/* driver is loaded unconditially, we must parse the font by */
/* ourselves. We are only interested in the name of the table and */
/* the offset. */
static FT_Error
ft_lookup_PS_in_sfnt( FT_Byte* sfnt,
FT_ULong* offset,
FT_ULong* length,
FT_Bool* is_sfnt_cid )
{
FT_Byte* p = sfnt + 4; /* skip version `typ1' */
FT_UShort numTables = FT_NEXT_USHORT( p );
p += 2 * 3; /* skip binary search header */
for ( ; numTables > 0 ; numTables -- )
{
FT_ULong tag = FT_NEXT_ULONG( p );
p += 4; /* skip checkSum */
*offset = FT_NEXT_ULONG( p );
*length = FT_NEXT_ULONG( p );
/* see Adobe TN# 5180 for binary header in CID table */
if ( tag == FT_MAKE_TAG( 'C', 'I', 'D', ' ' ) )
{
*offset += 22;
*length -= 22;
*is_sfnt_cid = TRUE;
return FT_Err_Ok;
}
/* see Apple's `The Type 1 GX Font Format' */
if ( tag == FT_MAKE_TAG( 'T', 'Y', 'P', '1' ) )
{
*offset += 24;
*length -= 24;
*is_sfnt_cid = FALSE;
return FT_Err_Ok;
}
}
*offset = 0;
*length = 0;
return FT_Err_Invalid_Table;
}
/* The resource header says we've got resource_cnt `sfnt' */
/* (TrueType/OpenType) resources in this file. Look through */
/* them for the one indicated by face_index, load it into mem, */
@ -1749,7 +1766,7 @@
}
/* Check for some macintosh formats. */
/* Check for some macintosh formats without Carbon framework. */
/* Is this a macbinary file? If so look at the resource fork. */
/* Is this a mac dfont file? */
/* Is this an old style resource fork? (in data) */
@ -1792,6 +1809,7 @@
face_index, aface, args );
return error;
}
#endif
#endif /* !FT_MACINTOSH && FT_CONFIG_OPTION_MAC_FONTS */

2
src/base/rules.mk
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@ -51,6 +51,8 @@ ifneq ($(ftmac_c),)
BASE_SRC += $(BASE_DIR)/$(ftmac_c)
endif
BASE_H := $(BASE_DIR)/ftbase.h
# Base layer `extensions' sources
#
# An extension is added to the library file as a separate object. It is