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* include/freetype/internal/sfnt.h, src/sfnt/sfdriver.c, 

src/sfnt/ttsbit.h, src/sfnt/ttsbit.c: moving the definition
        of 'set_sbit_strike' and 'load_sbit_metrics' to their 2.1.8
        location. This is used to support binary compatibility with
        the X.Org server's libXfont library.

        note that this disables memory optimizations for the embedded
        bitmap loader.Sigh....
This commit is contained in:
David Turner 2006-02-20 23:50:21 +00:00
parent f145e312df
commit dd0f3609d7
5 changed files with 60 additions and 25 deletions
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12
ChangeLog
View File

@ -1,3 +1,15 @@
2006-02-20 David Turner <david@freetype.org>
* include/freetype/internal/sfnt.h, src/sfnt/sfdriver.c,
src/sfnt/ttsbit.h, src/sfnt/ttsbit.c: moving the definition
of 'set_sbit_strike' and 'load_sbit_metrics' to their 2.1.8
location. This is used to support binary compatibility with
the X.Org server's libXfont library.
note that this disables memory optimizations for the embedded
bitmap loader.Sigh....
2006-02-17 David Turner <david@freetype.org>
* builds/unix/unix-cc.in (LINK_LIBRARY): Don't filter out exported

19
include/freetype/internal/sfnt.h
View File

@ -694,8 +694,21 @@ FT_BEGIN_HEADER
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
TT_Set_SBit_Strike_OldFunc set_sbit_strike_stub;
TT_Load_Table_Func load_sbits_stub;
/* The following two fields only appeared in 2.1.8, and were placed between
* 'load_sbits' and 'load_sbit_image'. We support them as a special exception
* since they're used by libXfont within the X.Org xserver, and because the
* probability that other rogue clients use the other 2.1.7 fields below
* is _extremely_ low.
*
* Note that this forces us to disable an interesting memory-saving optimization
* though...
*/
TT_Find_SBit_Image_Func find_sbit_image;
TT_Load_SBit_Metrics_Func load_sbit_metrics;
#endif
TT_Load_SBit_Image_Func load_sbit_image;
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
@ -716,12 +729,6 @@ FT_BEGIN_HEADER
/* this field was introduced in version 2.1.8, named `get_psname' */
TT_Face_GetKerningFunc get_kerning;
/* The following appeared in 2.1.8, but were placed between */
/* `load_sbits' and `load_sbit_image'. Both fields are NULL if */
/* FT_OPTIMIZE_MEMORY is used. */
TT_Find_SBit_Image_Func find_sbit_image;
TT_Load_SBit_Metrics_Func load_sbit_metrics;
/* new elements introduced after version 2.1.10 */
/* load the font directory, i.e., the offset table and */

38
src/sfnt/sfdriver.c
View File

@ -430,12 +430,23 @@
FT_UInt y_ppem,
FT_ULong* astrike_index )
{
FT_UNUSED( face );
FT_UNUSED( x_ppem );
FT_UNUSED( y_ppem );
/* we simply forge a FT_Size_Request and call the real function
* that does all the work
*
* this stub might be called by libXfont in the X.Org Xserver
* that was compiled against FT 2.1.8 or later.
*/
FT_Size_RequestRec req;
*astrike_index = 0x7FFFFFFFUL;
return FT_Err_Unimplemented_Feature;
req.type = FT_SIZE_REQUEST_TYPE_NOMINAL;
req.width = (FT_F26Dot6) x_ppem;
req.height = (FT_F26Dot6) y_ppem;
req.horiResolution = 0;
req.vertResolution = 0;
*astrike_index = 0x7FFFFFFFUL;
return tt_face_set_sbit_strike( face, &req, astrike_index );
}
@ -446,6 +457,11 @@
FT_UNUSED( face );
FT_UNUSED( stream );
/* this function was originally implemented to load the sbit
* table. However, it has been replaced by 'tt_face_load_eblc'
* and this stub is only there for crazy rogue clients who
* would want to call it directly (which would be stupid)
*/
return FT_Err_Unimplemented_Feature;
}
@ -453,6 +469,7 @@
FT_CALLBACK_DEF( void )
tt_face_free_sbit_stub( TT_Face face )
{
/* nothing to do in this stub */
FT_UNUSED( face );
}
@ -529,6 +546,9 @@
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
tt_face_set_sbit_strike_stub,
tt_face_load_sbit_stub,
tt_find_sbit_image,
tt_load_sbit_metrics,
#endif
#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS
@ -559,14 +579,6 @@
tt_face_get_kerning,
#ifndef FT_OPTIMIZE_MEMORY
tt_find_sbit_image,
tt_load_sbit_metrics,
#else
0,
0,
#endif
/* since version 2.2 */
tt_face_load_font_dir,

11
src/sfnt/ttsbit.c
View File

@ -20,9 +20,12 @@
#include FT_INTERNAL_STREAM_H
#include FT_TRUETYPE_TAGS_H
#ifdef FT_OPTIMIZE_MEMORY
/* Alas, the memory-optimized sbit loader can't be used when implementing
* the 'old internals' hack !!
*/
#if defined FT_OPTIMIZE_MEMORY && !defined FT_CONFIG_OPTION_OLD_INTERNALS
#include "ttsbit0.c"
#else /* !OPTIMIZE_MEMORY */
#else /* !OPTIMIZE_MEMORY || OLD_INTERNALS */
#include <ft2build.h>
#include FT_INTERNAL_DEBUG_H
@ -886,7 +889,7 @@
{
TT_SBit_SmallMetricsRec smetrics;
const FT_Frame_Field sbit_small_metrics_fields[] =
static const FT_Frame_Field sbit_small_metrics_fields[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE TT_SBit_SmallMetricsRec
@ -1489,7 +1492,7 @@
return error;
}
#endif /* !OPTIMIZE_MEMORY */
#endif /* !OPTIMIZE_MEMORY || OLD_INTERNALS */
/* END */

5
src/sfnt/ttsbit.h
View File

@ -45,7 +45,7 @@ FT_BEGIN_HEADER
FT_ULong strike_index,
FT_Size_Metrics* metrics );
#ifndef FT_OPTIMIZE_MEMORY
#if !defined FT_OPTIMIZE_MEMORY || defined FT_CONFIG_OPTION_OLD_INTERNALS
FT_LOCAL( FT_Error )
tt_find_sbit_image( TT_Face face,
FT_UInt glyph_index,
@ -58,7 +58,8 @@ FT_BEGIN_HEADER
tt_load_sbit_metrics( FT_Stream stream,
TT_SBit_Range range,
TT_SBit_Metrics metrics );
#endif /* !FT_OPTIMIZE_MEMORY */
#endif /* !FT_OPTIMIZE_MEMORY || FT_CONFIG_OPTION_OLD_INTERNALS */
FT_LOCAL( FT_Error )
tt_face_load_sbit_image( TT_Face face,