/***************************************************************************/
/* */
/* ftrfork.h */
/* */
/* Embedded resource forks accessor (specification). */
/* */
/* Copyright 2004-2016 by */
/* Masatake YAMATO and Redhat K.K. */
/* */
/* 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. */
/* */
/***************************************************************************/
/***************************************************************************/
/* Development of the code in this file is support of */
/* Information-technology Promotion Agency, Japan. */
/***************************************************************************/
#ifndef FTRFORK_H_
#define FTRFORK_H_
#include <ft2build.h>
#include FT_INTERNAL_OBJECTS_H
FT_BEGIN_HEADER
/* Number of guessing rules supported in `FT_Raccess_Guess'. */
/* Don't forget to increment the number if you add a new guessing rule. */
#define FT_RACCESS_N_RULES 9
/* A structure to describe a reference in a resource by its resource ID */
/* and internal offset. The `POST' resource expects to be concatenated */
/* by the order of resource IDs instead of its appearance in the file. */
typedef struct FT_RFork_Ref_
{
FT_UShort res_id;
FT_Long offset;
} FT_RFork_Ref;
#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
typedef FT_Error
(*ft_raccess_guess_func)( FT_Library library,
FT_Stream stream,
char *base_file_name,
char **result_file_name,
FT_Long *result_offset );
typedef enum FT_RFork_Rule_ {
FT_RFork_Rule_invalid = -2,
FT_RFork_Rule_uknown, /* -1 */
FT_RFork_Rule_apple_double,
FT_RFork_Rule_apple_single,
FT_RFork_Rule_darwin_ufs_export,
FT_RFork_Rule_darwin_newvfs,
FT_RFork_Rule_darwin_hfsplus,
FT_RFork_Rule_vfat,
FT_RFork_Rule_linux_cap,
FT_RFork_Rule_linux_double,
FT_RFork_Rule_linux_netatalk
} FT_RFork_Rule;
/* For fast translation between rule index and rule type,
* the macros FT_RFORK_xxx should be kept consistent with
* the raccess_guess_funcs table
*/
typedef struct ft_raccess_guess_rec_ {
ft_raccess_guess_func func;
FT_RFork_Rule type;
} ft_raccess_guess_rec;
#ifndef FT_CONFIG_OPTION_PIC
/* this array is a storage in non-PIC mode, so ; is needed in END */
#define CONST_FT_RFORK_RULE_ARRAY_BEGIN( name, type ) \
static const type name[] = {
#define CONST_FT_RFORK_RULE_ARRAY_ENTRY( func_suffix, type_suffix ) \
{ raccess_guess_ ## func_suffix, \
FT_RFork_Rule_ ## type_suffix },
#define CONST_FT_RFORK_RULE_ARRAY_END };
#else /* FT_CONFIG_OPTION_PIC */
/* this array is a function in PIC mode, so no ; is needed in END */
#define CONST_FT_RFORK_RULE_ARRAY_BEGIN( name, type ) \
void \
FT_Init_Table_ ## name( type* storage ) \
{ \
type* local = storage; \
\
\
int i = 0;
#define CONST_FT_RFORK_RULE_ARRAY_ENTRY( func_suffix, type_suffix ) \
local[i].func = raccess_guess_ ## func_suffix; \
local[i].type = FT_RFork_Rule_ ## type_suffix; \
i++;
#define CONST_FT_RFORK_RULE_ARRAY_END }
#endif /* FT_CONFIG_OPTION_PIC */
#endif /* FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */
/*************************************************************************/
/* */
/* <Function> */
/* FT_Raccess_Guess */
/* */
/* <Description> */
/* Guess a file name and offset where the actual resource fork is */
/* stored. The macro FT_RACCESS_N_RULES holds the number of */
/* guessing rules; the guessed result for the Nth rule is */
/* represented as a triplet: a new file name (new_names[N]), a file */
/* offset (offsets[N]), and an error code (errors[N]). */
/* */
/* <Input> */
/* library :: */
/* A FreeType library instance. */
/* */
/* stream :: */
/* A file stream containing the resource fork. */
/* */
/* base_name :: */
/* The (base) file name of the resource fork used for some */
/* guessing rules. */
/* */
/* <Output> */
/* new_names :: */
/* An array of guessed file names in which the resource forks may */
/* exist. If `new_names[N]' is NULL, the guessed file name is */
/* equal to `base_name'. */
/* */
/* offsets :: */
/* An array of guessed file offsets. `offsets[N]' holds the file */
/* offset of the possible start of the resource fork in file */
/* `new_names[N]'. */
/* */
/* errors :: */
/* An array of FreeType error codes. `errors[N]' is the error */
/* code of Nth guessing rule function. If `errors[N]' is not */
/* FT_Err_Ok, `new_names[N]' and `offsets[N]' are meaningless. */
/* */
FT_BASE( void )
FT_Raccess_Guess( FT_Library library,
FT_Stream stream,
char* base_name,
char** new_names,
FT_Long* offsets,
FT_Error* errors );
/*************************************************************************/
/* */
/* <Function> */
/* FT_Raccess_Get_HeaderInfo */
/* */
/* <Description> */
/* Get the information from the header of resource fork. The */
/* information includes the file offset where the resource map */
/* starts, and the file offset where the resource data starts. */
/* `FT_Raccess_Get_DataOffsets' requires these two data. */
/* */
/* <Input> */
/* library :: */
/* A FreeType library instance. */
/* */
/* stream :: */
/* A file stream containing the resource fork. */
/* */
/* rfork_offset :: */
/* The file offset where the resource fork starts. */
/* */
/* <Output> */
/* map_offset :: */
/* The file offset where the resource map starts. */
/* */
/* rdata_pos :: */
/* The file offset where the resource data starts. */
/* */
/* <Return> */
/* FreeType error code. FT_Err_Ok means success. */
/* */
FT_BASE( FT_Error )
FT_Raccess_Get_HeaderInfo( FT_Library library,
FT_Stream stream,
FT_Long rfork_offset,
FT_Long *map_offset,
FT_Long *rdata_pos );
/*************************************************************************/
/* */
/* <Function> */
/* FT_Raccess_Get_DataOffsets */
/* */
/* <Description> */
/* Get the data offsets for a tag in a resource fork. Offsets are */
/* stored in an array because, in some cases, resources in a resource */
/* fork have the same tag. */
/* */
/* <Input> */
/* library :: */
/* A FreeType library instance. */
/* */
/* stream :: */
/* A file stream containing the resource fork. */
/* */
/* map_offset :: */
/* The file offset where the resource map starts. */
/* */
/* rdata_pos :: */
/* The file offset where the resource data starts. */
/* */
/* tag :: */
/* The resource tag. */
/* */
/* sort_by_res_id :: */
/* A Boolean to sort the fragmented resource by their ids. */
/* The fragmented resources for `POST' resource should be sorted */
/* to restore Type1 font properly. For `sfnt' resources, sorting */
/* may induce a different order of the faces in comparison to that */
/* by QuickDraw API. */
/* */
/* <Output> */
/* offsets :: */
/* The stream offsets for the resource data specified by `tag'. */
/* This array is allocated by the function, so you have to call */
/* @ft_mem_free after use. */
/* */
/* count :: */
/* The length of offsets array. */
/* */
/* <Return> */
/* FreeType error code. FT_Err_Ok means success. */
/* */
/* <Note> */
/* Normally you should use `FT_Raccess_Get_HeaderInfo' to get the */
/* value for `map_offset' and `rdata_pos'. */
/* */
FT_BASE( FT_Error )
FT_Raccess_Get_DataOffsets( FT_Library library,
FT_Stream stream,
FT_Long map_offset,
FT_Long rdata_pos,
FT_Long tag,
FT_Bool sort_by_res_id,
FT_Long **offsets,
FT_Long *count );
FT_END_HEADER
#endif /* FTRFORK_H_ */
/* END */
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