freetype/src/truetype/ttpic.c
Oran Agra 2e7a4e9b7f Position Independent Code (PIC) support in truetype driver.
* include/freetype/internal/services/svmm.h add macros to init
instances of FT_Service_MultiMastersRec.
* include/freetype/internal/services/svttglyf.h add macros to init
instances of FT_Service_TTGlyfRec.

* src/truetype/ttdriver.h declare tt_driver_class using macros from
ftdriver.h, when FT_CONFIG_OPTION_PIC is defined create and destroy
functions will be declared.
* src/truetype/ttdriver.c when FT_CONFIG_OPTION_PIC is defined
the following structs:
tt_service_gx_multi_masters, tt_service_truetype_glyf, tt_driver_class
and tt_services array,
will have functions to init or create and destroy them
instead of being allocated in the global scope.
And macros will be used from ttpic.h in order to access them
from the pic_container.
* src/truetype/ttobjs.c change trick_names array to be
PIC-compatible by being a two dimentional array rather than array
of pointers.

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

* src/truetype/truetype.c add new file to build: ttpic.c.
* src/truetype/jamfile add new files to FT2_MULTI build: ttpic.c.
2009-04-05 18:03:02 +03:00

80 lines
3.2 KiB
C

/***************************************************************************/
/* */
/* ttpic.c */
/* */
/* The FreeType position independent code services for truetype 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 "ttpic.h"
#ifdef FT_CONFIG_OPTION_PIC
/* forward declaration of PIC init functions from ttdriver.c */
FT_Error FT_Create_Class_tt_services( FT_Library, FT_ServiceDescRec**);
void FT_Destroy_Class_tt_services( FT_Library, FT_ServiceDescRec*);
void FT_Init_Class_tt_service_gx_multi_masters(FT_Service_MultiMastersRec*);
void FT_Init_Class_tt_service_truetype_glyf(FT_Service_TTGlyfRec*);
void
tt_driver_class_pic_free( FT_Library library )
{
FT_PIC_Container* pic_container = &library->pic_container;
FT_Memory memory = library->memory;
if ( pic_container->truetype )
{
TTModulePIC* container = (TTModulePIC*)pic_container->truetype;
if(container->tt_services)
FT_Destroy_Class_tt_services(library, container->tt_services);
container->tt_services = NULL;
FT_FREE( container );
pic_container->truetype = NULL;
}
}
FT_Error
tt_driver_class_pic_init( FT_Library library )
{
FT_PIC_Container* pic_container = &library->pic_container;
FT_Error error = FT_Err_Ok;
TTModulePIC* 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->truetype = container;
/* initialize pointer table - this is how the module usually expects this data */
error = FT_Create_Class_tt_services(library, &container->tt_services);
if(error)
goto Exit;
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
FT_Init_Class_tt_service_gx_multi_masters(&container->tt_service_gx_multi_masters);
#endif
FT_Init_Class_tt_service_truetype_glyf(&container->tt_service_truetype_glyf);
Exit:
if(error)
tt_driver_class_pic_free(library);
return error;
}
#endif /* FT_CONFIG_OPTION_PIC */
/* END */