Position Independent Code (PIC) support in autofit module.

* include/freetype/internal/autohint.h add macros to init
instances of FT_AutoHinter_ServiceRec.

* src/autofit/afmodule.h declare autofit_module_class
using macros from ftmodapi.h,
when FT_CONFIG_OPTION_PIC is defined create and destroy
functions will be declared.
* src/autofit/afmodule.c when FT_CONFIG_OPTION_PIC is defined
af_autofitter_service and autofit_module_class structs
will have functions to init or create and destroy them
instead of being allocated in the global scope.
And macros will be used from afpic.h in order to access them.

* src/autofit/aftypes.h add macros to init and declare
instances of AF_ScriptClassRec.

* src/autofit/afcjk.h declare af_cjk_script_class
using macros from aftypes.h,
when FT_CONFIG_OPTION_PIC is defined init function will be declared.
* src/autofit/afcjk.c when FT_CONFIG_OPTION_PIC is defined
af_cjk_script_class struct will have function to init it instead of
being allocated in the global scope.

* src/autofit/afdummy.h declare af_dummy_script_class
using macros from aftypes.h,
when FT_CONFIG_OPTION_PIC is defined init function will be declared.
* src/autofit/afdummy.c when FT_CONFIG_OPTION_PIC is defined
af_dummy_script_class struct will have function to init it instead of
being allocated in the global scope.

* src/autofit/afindic.h declare af_indic_script_class
using macros from aftypes.h,
when FT_CONFIG_OPTION_PIC is defined init function will be declared.
* src/autofit/afindic.c when FT_CONFIG_OPTION_PIC is defined
af_indic_script_class struct will have function to init it instead of
being allocated in the global scope.

* src/autofit/aflatin.h declare af_latin_script_class
using macros from aftypes.h,
when FT_CONFIG_OPTION_PIC is defined init function will be declared.
* src/autofit/aflatin.c when FT_CONFIG_OPTION_PIC is defined
af_latin_script_class struct will have function to init it instead of
being allocated in the global scope.
Change af_latin_blue_chars to be PIC-compatible by being a two
dimentional array rather than array of pointers.


* src/autofit/aflatin2.h declare af_latin2_script_class
using macros from aftypes.h,
when FT_CONFIG_OPTION_PIC is defined init function will be declared.
* src/autofit/aflatin2.c when FT_CONFIG_OPTION_PIC is defined
af_latin2_script_class struct will have function to init it instead of
being allocated in the global scope.
Change af_latin2_blue_chars to be PIC-compatible by being a two
dimentional array rather than array of pointers.

* src/autofit/afglobal.c when FT_CONFIG_OPTION_PIC is defined
af_script_classes array initialization was moved to afpic.c and
is later refered using macros defeined in afpic.h.

New Files:
* src/autofit/afpic.h declare struct to hold PIC globals for autofit
module and macros to access them.
* src/autofit/afpic.c implement functions to allocate, destroy and
initialize PIC globals for autofit module.

* src/autofit/autofit.c add new file to build: afpic.c.
* src/autofit/jamfile add new files to FT2_MULTI build: afpic.c.
This commit is contained in:
Oran Agra 2009-04-05 18:23:38 +03:00
parent 4e711be9f5
commit 59b4af8d59
20 changed files with 349 additions and 58 deletions

View File

@ -1,3 +1,76 @@
2009-04-05 Oran Agra <oran@monfort.co.il>
Position Independent Code (PIC) support in autofit module.
* include/freetype/internal/autohint.h add macros to init
instances of FT_AutoHinter_ServiceRec.
* src/autofit/afmodule.h declare autofit_module_class
using macros from ftmodapi.h,
when FT_CONFIG_OPTION_PIC is defined create and destroy
functions will be declared.
* src/autofit/afmodule.c when FT_CONFIG_OPTION_PIC is defined
af_autofitter_service and autofit_module_class structs
will have functions to init or create and destroy them
instead of being allocated in the global scope.
And macros will be used from afpic.h in order to access them.
* src/autofit/aftypes.h add macros to init and declare
instances of AF_ScriptClassRec.
* src/autofit/afcjk.h declare af_cjk_script_class
using macros from aftypes.h,
when FT_CONFIG_OPTION_PIC is defined init function will be declared.
* src/autofit/afcjk.c when FT_CONFIG_OPTION_PIC is defined
af_cjk_script_class struct will have function to init it instead of
being allocated in the global scope.
* src/autofit/afdummy.h declare af_dummy_script_class
using macros from aftypes.h,
when FT_CONFIG_OPTION_PIC is defined init function will be declared.
* src/autofit/afdummy.c when FT_CONFIG_OPTION_PIC is defined
af_dummy_script_class struct will have function to init it instead of
being allocated in the global scope.
* src/autofit/afindic.h declare af_indic_script_class
using macros from aftypes.h,
when FT_CONFIG_OPTION_PIC is defined init function will be declared.
* src/autofit/afindic.c when FT_CONFIG_OPTION_PIC is defined
af_indic_script_class struct will have function to init it instead of
being allocated in the global scope.
* src/autofit/aflatin.h declare af_latin_script_class
using macros from aftypes.h,
when FT_CONFIG_OPTION_PIC is defined init function will be declared.
* src/autofit/aflatin.c when FT_CONFIG_OPTION_PIC is defined
af_latin_script_class struct will have function to init it instead of
being allocated in the global scope.
Change af_latin_blue_chars to be PIC-compatible by being a two
dimentional array rather than array of pointers.
* src/autofit/aflatin2.h declare af_latin2_script_class
using macros from aftypes.h,
when FT_CONFIG_OPTION_PIC is defined init function will be declared.
* src/autofit/aflatin2.c when FT_CONFIG_OPTION_PIC is defined
af_latin2_script_class struct will have function to init it instead of
being allocated in the global scope.
Change af_latin2_blue_chars to be PIC-compatible by being a two
dimentional array rather than array of pointers.
* src/autofit/afglobal.c when FT_CONFIG_OPTION_PIC is defined
af_script_classes array initialization was moved to afpic.c and
is later refered using macros defeined in afpic.h.
New Files:
* src/autofit/afpic.h declare struct to hold PIC globals for autofit
module and macros to access them.
* src/autofit/afpic.c implement functions to allocate, destroy and
initialize PIC globals for autofit module.
* src/autofit/autofit.c add new file to build: afpic.c.
* src/autofit/jamfile add new files to FT2_MULTI build: afpic.c.
2009-04-05 Oran Agra <oran@monfort.co.il>
Position Independent Code (PIC) support in pshinter module.

View File

@ -196,6 +196,32 @@ FT_BEGIN_HEADER
} FT_AutoHinter_ServiceRec, *FT_AutoHinter_Service;
#ifndef FT_CONFIG_OPTION_PIC
#define FT_DEFINE_AUTOHINTER_SERVICE(class_, reset_face_, get_global_hints_, \
done_global_hints_, load_glyph_) \
FT_CALLBACK_TABLE_DEF \
const FT_AutoHinter_ServiceRec class_ = \
{ \
reset_face_, get_global_hints_, done_global_hints_, load_glyph_ \
};
#else /* FT_CONFIG_OPTION_PIC */
#define FT_DEFINE_AUTOHINTER_SERVICE(class_, reset_face_, get_global_hints_, \
done_global_hints_, load_glyph_) \
void \
FT_Init_Class_##class_( FT_Library library, \
FT_AutoHinter_ServiceRec* clazz) \
{ \
FT_UNUSED(library); \
clazz->reset_face = reset_face_; \
clazz->get_global_hints = get_global_hints_; \
clazz->done_global_hints = done_global_hints_; \
clazz->load_glyph = load_glyph_; \
}
#endif /* FT_CONFIG_OPTION_PIC */
FT_END_HEADER

View File

@ -21,7 +21,7 @@ SubDir FT2_TOP src autofit ;
}
if $(FT2_MULTI)
{
_sources = afangles afglobal afhints aflatin afcjk afindic afloader afmodule afdummy afwarp ;
_sources = afangles afglobal afhints aflatin afcjk afindic afloader afmodule afdummy afwarp afpic ;
if $(FT2_AUTOFIT2)
{

View File

@ -1467,9 +1467,7 @@
};
FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
af_cjk_script_class =
{
AF_DEFINE_SCRIPT_CLASS(af_cjk_script_class,
AF_SCRIPT_CJK,
af_cjk_uniranges,
@ -1481,7 +1479,7 @@
(AF_Script_InitHintsFunc) af_cjk_hints_init,
(AF_Script_ApplyHintsFunc) af_cjk_hints_apply
};
)
#else /* !AF_CONFIG_OPTION_CJK */
@ -1491,9 +1489,7 @@
};
FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
af_cjk_script_class =
{
AF_DEFINE_SCRIPT_CLASS(af_cjk_script_class,
AF_SCRIPT_CJK,
af_cjk_uniranges,
@ -1505,7 +1501,7 @@
(AF_Script_InitHintsFunc) NULL,
(AF_Script_ApplyHintsFunc) NULL
};
)
#endif /* !AF_CONFIG_OPTION_CJK */

View File

@ -27,8 +27,7 @@ FT_BEGIN_HEADER
/* the CJK-specific script class */
FT_CALLBACK_TABLE const AF_ScriptClassRec
af_cjk_script_class;
AF_DECLARE_SCRIPT_CLASS(af_cjk_script_class)
FT_LOCAL( FT_Error )

View File

@ -42,9 +42,7 @@
}
FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
af_dummy_script_class =
{
AF_DEFINE_SCRIPT_CLASS(af_dummy_script_class,
AF_SCRIPT_NONE,
NULL,
@ -56,7 +54,7 @@
(AF_Script_InitHintsFunc) af_dummy_hints_init,
(AF_Script_ApplyHintsFunc) af_dummy_hints_apply
};
)
/* END */

View File

@ -29,8 +29,7 @@ FT_BEGIN_HEADER
* be performed. This is the default for non-latin glyphs!
*/
FT_CALLBACK_TABLE const AF_ScriptClassRec
af_dummy_script_class;
AF_DECLARE_SCRIPT_CLASS(af_dummy_script_class)
/* */

View File

@ -21,6 +21,7 @@
#include "aflatin.h"
#include "afcjk.h"
#include "afindic.h"
#include "afpic.h"
#include "aferrors.h"
@ -28,6 +29,11 @@
#include "aflatin2.h"
#endif
#ifndef FT_CONFIG_OPTION_PIC
/* when updating this table, don't forget to update
AF_SCRIPT_CLASSES_COUNT and autofit_module_class_pic_init */
/* populate this list when you add new scripts */
static AF_ScriptClass const af_script_classes[] =
{
@ -41,6 +47,8 @@
NULL /* do not remove */
};
#endif /* FT_CONFIG_OPTION_PIC */
/* index of default script in `af_script_classes' */
#define AF_SCRIPT_LIST_DEFAULT 2
/* indicates an uncovered glyph */
@ -92,9 +100,9 @@
}
/* scan each script in a Unicode charmap */
for ( ss = 0; af_script_classes[ss]; ss++ )
for ( ss = 0; AF_SCRIPT_CLASSES_GET[ss]; ss++ )
{
AF_ScriptClass clazz = af_script_classes[ss];
AF_ScriptClass clazz = AF_SCRIPT_CLASSES_GET[ss];
AF_Script_UniRange range;
@ -201,7 +209,7 @@
{
if ( globals->metrics[nn] )
{
AF_ScriptClass clazz = af_script_classes[nn];
AF_ScriptClass clazz = AF_SCRIPT_CLASSES_GET[nn];
FT_ASSERT( globals->metrics[nn]->clazz == clazz );
@ -232,8 +240,8 @@
FT_UInt gidx;
AF_ScriptClass clazz;
FT_UInt script = options & 15;
const FT_UInt script_max = sizeof ( af_script_classes ) /
sizeof ( af_script_classes[0] );
const FT_UInt script_max = sizeof ( AF_SCRIPT_CLASSES_GET ) /
sizeof ( AF_SCRIPT_CLASSES_GET[0] );
FT_Error error = AF_Err_Ok;
@ -247,7 +255,7 @@
if ( gidx == 0 || gidx + 1 >= script_max )
gidx = globals->glyph_scripts[gindex];
clazz = af_script_classes[gidx];
clazz = AF_SCRIPT_CLASSES_GET[gidx];
if ( script == 0 )
script = clazz->script;

View File

@ -88,9 +88,7 @@
};
FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
af_indic_script_class =
{
AF_DEFINE_SCRIPT_CLASS(af_indic_script_class,
AF_SCRIPT_INDIC,
af_indic_uniranges,
@ -102,7 +100,7 @@
(AF_Script_InitHintsFunc) af_indic_hints_init,
(AF_Script_ApplyHintsFunc) af_indic_hints_apply
};
)
#else /* !AF_CONFIG_OPTION_INDIC */
@ -112,9 +110,7 @@
};
FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
af_indic_script_class =
{
AF_DEFINE_SCRIPT_CLASS(af_indic_script_class,
AF_SCRIPT_INDIC,
af_indic_uniranges,
@ -126,7 +122,7 @@
(AF_Script_InitHintsFunc) NULL,
(AF_Script_ApplyHintsFunc) NULL
};
)
#endif /* !AF_CONFIG_OPTION_INDIC */

View File

@ -27,8 +27,7 @@ FT_BEGIN_HEADER
/* the Indic-specific script class */
FT_CALLBACK_TABLE const AF_ScriptClassRec
af_indic_script_class;
AF_DECLARE_SCRIPT_CLASS(af_indic_script_class)
/* */

View File

@ -146,7 +146,7 @@
#define AF_LATIN_MAX_TEST_CHARACTERS 12
static const char* const af_latin_blue_chars[AF_LATIN_MAX_BLUES] =
static const char af_latin_blue_chars[AF_LATIN_MAX_BLUES][AF_LATIN_MAX_TEST_CHARACTERS+1] =
{
"THEZOCQS",
"HEZLOCUS",
@ -2157,9 +2157,7 @@
};
FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
af_latin_script_class =
{
AF_DEFINE_SCRIPT_CLASS(af_latin_script_class,
AF_SCRIPT_LATIN,
af_latin_uniranges,
@ -2171,7 +2169,7 @@
(AF_Script_InitHintsFunc) af_latin_hints_init,
(AF_Script_ApplyHintsFunc) af_latin_hints_apply
};
)
/* END */

View File

@ -27,8 +27,7 @@ FT_BEGIN_HEADER
/* the latin-specific script class */
FT_CALLBACK_TABLE const AF_ScriptClassRec
af_latin_script_class;
AF_DECLARE_SCRIPT_CLASS(af_latin_script_class)
/* constants are given with units_per_em == 2048 in mind */

View File

@ -154,7 +154,7 @@
#define AF_LATIN_MAX_TEST_CHARACTERS 12
static const char* const af_latin2_blue_chars[AF_LATIN_MAX_BLUES] =
static const char af_latin2_blue_chars[AF_LATIN_MAX_BLUES][AF_LATIN_MAX_TEST_CHARACTERS+1] =
{
"THEZOCQS",
"HEZLOCUS",
@ -2272,9 +2272,7 @@
};
FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec
af_latin2_script_class =
{
AF_DEFINE_SCRIPT_CLASS(af_latin2_script_class,
AF_SCRIPT_LATIN2,
af_latin2_uniranges,
@ -2286,7 +2284,7 @@
(AF_Script_InitHintsFunc) af_latin2_hints_init,
(AF_Script_ApplyHintsFunc) af_latin2_hints_apply
};
)
/* END */

View File

@ -27,8 +27,7 @@ FT_BEGIN_HEADER
/* the latin-specific script class */
FT_CALLBACK_TABLE const AF_ScriptClassRec
af_latin2_script_class;
AF_DECLARE_SCRIPT_CLASS(af_latin2_script_class)
/* */

View File

@ -18,6 +18,7 @@
#include "afmodule.h"
#include "afloader.h"
#include "afpic.h"
#ifdef AF_DEBUG
int _af_debug;
@ -66,19 +67,15 @@
}
FT_CALLBACK_TABLE_DEF
const FT_AutoHinter_ServiceRec af_autofitter_service =
{
FT_DEFINE_AUTOHINTER_SERVICE(af_autofitter_service,
NULL,
NULL,
NULL,
(FT_AutoHinter_GlyphLoadFunc)af_autofitter_load_glyph
};
)
FT_DEFINE_MODULE(autofit_module_class,
FT_CALLBACK_TABLE_DEF
const FT_Module_Class autofit_module_class =
{
FT_MODULE_HINTER,
sizeof ( FT_AutofitterRec ),
@ -86,12 +83,12 @@
0x10000L, /* version 1.0 of the autofitter */
0x20000L, /* requires FreeType 2.0 or above */
(const void*)&af_autofitter_service,
(const void*)&AF_AF_AUTOFITTER_SERVICE_GET,
(FT_Module_Constructor)af_autofitter_init,
(FT_Module_Destructor) af_autofitter_done,
(FT_Module_Requester) NULL
};
)
/* END */

View File

@ -25,8 +25,7 @@
FT_BEGIN_HEADER
FT_CALLBACK_TABLE
const FT_Module_Class autofit_module_class;
FT_DECLARE_MODULE(autofit_module_class)
FT_END_HEADER

92
src/autofit/afpic.c Normal file
View File

@ -0,0 +1,92 @@
/***************************************************************************/
/* */
/* afpic.c */
/* */
/* The FreeType position independent code services for autofit module. */
/* */
/* Copyright 2009 by */
/* Oran Agra and Mickey Gabel. */
/* */
/* 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_FREETYPE_H
#include FT_INTERNAL_OBJECTS_H
#include "afpic.h"
#ifdef FT_CONFIG_OPTION_PIC
/* forward declaration of PIC init functions from afmodule.c */
void FT_Init_Class_af_autofitter_service( FT_Library, FT_AutoHinter_ServiceRec*);
/* forward declaration of PIC init functions from script classes */
#include "aflatin.h"
#include "aflatin2.h"
#include "afcjk.h"
#include "afdummy.h"
#include "afindic.h"
void
autofit_module_class_pic_free( FT_Library library )
{
FT_PIC_Container* pic_container = &library->pic_container;
FT_Memory memory = library->memory;
if ( pic_container->autofit )
{
FT_FREE( pic_container->autofit );
pic_container->autofit = NULL;
}
}
FT_Error
autofit_module_class_pic_init( FT_Library library )
{
FT_PIC_Container* pic_container = &library->pic_container;
FT_UInt ss;
FT_Error error = FT_Err_Ok;
AFModulePIC* container;
FT_Memory memory = library->memory;
/* allocate pointer, clear and set global container pointer */
if ( FT_ALLOC ( container, sizeof ( *container ) ) )
return error;
FT_MEM_SET( container, 0, sizeof(*container) );
pic_container->autofit = container;
/* initialize pointer table - this is how the module usually expects this data */
for ( ss = 0 ; ss < AF_SCRIPT_CLASSES_REC_COUNT ; ss++ )
{
container->af_script_classes[ss] = &container->af_script_classes_rec[ss];
}
container->af_script_classes[AF_SCRIPT_CLASSES_COUNT-1] = NULL;
/* add call to initialization function when you add new scripts */
ss = 0;
FT_Init_Class_af_dummy_script_class(&container->af_script_classes_rec[ss++]);
#ifdef FT_OPTION_AUTOFIT2
FT_Init_Class_af_latin2_script_class(&container->af_script_classes_rec[ss++]);
#endif
FT_Init_Class_af_latin_script_class(&container->af_script_classes_rec[ss++]);
FT_Init_Class_af_cjk_script_class(&container->af_script_classes_rec[ss++]);
FT_Init_Class_af_indic_script_class(&container->af_script_classes_rec[ss++]);
FT_Init_Class_af_autofitter_service(library, &container->af_autofitter_service);
/*Exit:*/
if(error)
autofit_module_class_pic_free(library);
return error;
}
#endif /* FT_CONFIG_OPTION_PIC */
/* END */

64
src/autofit/afpic.h Normal file
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@ -0,0 +1,64 @@
/***************************************************************************/
/* */
/* afpic.h */
/* */
/* The FreeType position independent code services for autofit module. */
/* */
/* Copyright 2009 by */
/* Oran Agra and Mickey Gabel. */
/* */
/* 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 __AFPIC_H__
#define __AFPIC_H__
FT_BEGIN_HEADER
#include FT_INTERNAL_PIC_H
#ifndef FT_CONFIG_OPTION_PIC
#define AF_SCRIPT_CLASSES_GET af_script_classes
#define AF_AF_AUTOFITTER_SERVICE_GET af_autofitter_service
#else /* FT_CONFIG_OPTION_PIC */
#include "aftypes.h"
/* increase these when you add new scripts, and update autofit_module_class_pic_init */
#ifdef FT_OPTION_AUTOFIT2
#define AF_SCRIPT_CLASSES_COUNT 6
#else
#define AF_SCRIPT_CLASSES_COUNT 5
#endif
#define AF_SCRIPT_CLASSES_REC_COUNT (AF_SCRIPT_CLASSES_COUNT-1)
typedef struct AFModulePIC_
{
AF_ScriptClass af_script_classes[AF_SCRIPT_CLASSES_COUNT];
AF_ScriptClassRec af_script_classes_rec[AF_SCRIPT_CLASSES_REC_COUNT];
FT_AutoHinter_ServiceRec af_autofitter_service;
} AFModulePIC;
#define GET_PIC(lib) ((AFModulePIC*)((lib)->pic_container.autofit))
#define AF_SCRIPT_CLASSES_GET (GET_PIC(FT_FACE_LIBRARY(globals->face))->af_script_classes)
#define AF_AF_AUTOFITTER_SERVICE_GET (GET_PIC(library)->af_autofitter_service)
#endif /* FT_CONFIG_OPTION_PIC */
/* */
FT_END_HEADER
#endif /* __AFPIC_H__ */
/* END */

View File

@ -339,6 +339,56 @@ extern void* _af_debug_hints;
} AF_ScriptClassRec;
/* Declare and define vtables for classes */
#ifndef FT_CONFIG_OPTION_PIC
#define AF_DECLARE_SCRIPT_CLASS(script_class) \
FT_CALLBACK_TABLE const AF_ScriptClassRec \
script_class;
#define AF_DEFINE_SCRIPT_CLASS(script_class, script_, ranges, m_size, \
m_init, m_scale, m_done, h_init, h_apply) \
FT_CALLBACK_TABLE_DEF const AF_ScriptClassRec \
script_class = \
{ \
script_, \
ranges, \
\
m_size, \
\
m_init, \
m_scale, \
m_done, \
\
h_init, \
h_apply \
};
#else
#define AF_DECLARE_SCRIPT_CLASS(script_class) \
FT_LOCAL(void) \
FT_Init_Class_##script_class(AF_ScriptClassRec* ac);
#define AF_DEFINE_SCRIPT_CLASS(script_class, script_, ranges, m_size, \
m_init, m_scale, m_done, h_init, h_apply) \
FT_LOCAL_DEF(void) \
FT_Init_Class_##script_class(AF_ScriptClassRec* ac) \
{ \
ac->script = script_; \
ac->script_uni_ranges = ranges; \
\
ac->script_metrics_size = m_size; \
\
ac->script_metrics_init = m_init; \
ac->script_metrics_scale = m_scale; \
ac->script_metrics_done = m_done; \
\
ac->script_hints_init = h_init; \
ac->script_hints_apply = h_apply; \
}
#endif
/* */

View File

@ -18,6 +18,7 @@
#define FT_MAKE_OPTION_SINGLE_OBJECT
#include <ft2build.h>
#include "afpic.c"
#include "afangles.c"
#include "afglobal.c"
#include "afhints.c"