--- a/misc/libfreetype/builds/unix/ftsystem.c Tue Jul 16 11:14:27 2013 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,419 +0,0 @@
-/***************************************************************************/
-/* */
-/* ftsystem.c */
-/* */
-/* Unix-specific FreeType low-level system interface (body). */
-/* */
-/* Copyright 1996-2001, 2002, 2004, 2005, 2006, 2007, 2008 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* 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>
- /* we use our special ftconfig.h file, not the standard one */
-#include <ftconfig.h>
-#include FT_INTERNAL_DEBUG_H
-#include FT_SYSTEM_H
-#include FT_ERRORS_H
-#include FT_TYPES_H
-#include FT_INTERNAL_STREAM_H
-
- /* memory-mapping includes and definitions */
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
-#include <sys/mman.h>
-#ifndef MAP_FILE
-#define MAP_FILE 0x00
-#endif
-
-#ifdef MUNMAP_USES_VOIDP
-#define MUNMAP_ARG_CAST void *
-#else
-#define MUNMAP_ARG_CAST char *
-#endif
-
-#ifdef NEED_MUNMAP_DECL
-
-#ifdef __cplusplus
- extern "C"
-#else
- extern
-#endif
- int
- munmap( char* addr,
- int len );
-
-#define MUNMAP_ARG_CAST char *
-
-#endif /* NEED_DECLARATION_MUNMAP */
-
-
-#include <sys/types.h>
-#include <sys/stat.h>
-
-#ifdef HAVE_FCNTL_H
-#include <fcntl.h>
-#endif
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-
-
- /*************************************************************************/
- /* */
- /* MEMORY MANAGEMENT INTERFACE */
- /* */
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ft_alloc */
- /* */
- /* <Description> */
- /* The memory allocation function. */
- /* */
- /* <Input> */
- /* memory :: A pointer to the memory object. */
- /* */
- /* size :: The requested size in bytes. */
- /* */
- /* <Return> */
- /* The address of newly allocated block. */
- /* */
- FT_CALLBACK_DEF( void* )
- ft_alloc( FT_Memory memory,
- long size )
- {
- FT_UNUSED( memory );
-
- return malloc( size );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ft_realloc */
- /* */
- /* <Description> */
- /* The memory reallocation function. */
- /* */
- /* <Input> */
- /* memory :: A pointer to the memory object. */
- /* */
- /* cur_size :: The current size of the allocated memory block. */
- /* */
- /* new_size :: The newly requested size in bytes. */
- /* */
- /* block :: The current address of the block in memory. */
- /* */
- /* <Return> */
- /* The address of the reallocated memory block. */
- /* */
- FT_CALLBACK_DEF( void* )
- ft_realloc( FT_Memory memory,
- long cur_size,
- long new_size,
- void* block )
- {
- FT_UNUSED( memory );
- FT_UNUSED( cur_size );
-
- return realloc( block, new_size );
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ft_free */
- /* */
- /* <Description> */
- /* The memory release function. */
- /* */
- /* <Input> */
- /* memory :: A pointer to the memory object. */
- /* */
- /* block :: The address of block in memory to be freed. */
- /* */
- FT_CALLBACK_DEF( void )
- ft_free( FT_Memory memory,
- void* block )
- {
- FT_UNUSED( memory );
-
- free( block );
- }
-
-
- /*************************************************************************/
- /* */
- /* RESOURCE MANAGEMENT INTERFACE */
- /* */
- /*************************************************************************/
-
-
- /*************************************************************************/
- /* */
- /* The macro FT_COMPONENT is used in trace mode. It is an implicit */
- /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
- /* messages during execution. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_io
-
- /* We use the macro STREAM_FILE for convenience to extract the */
- /* system-specific stream handle from a given FreeType stream object */
-#define STREAM_FILE( stream ) ( (FILE*)stream->descriptor.pointer )
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ft_close_stream_by_munmap */
- /* */
- /* <Description> */
- /* The function to close a stream which is opened by mmap. */
- /* */
- /* <Input> */
- /* stream :: A pointer to the stream object. */
- /* */
- FT_CALLBACK_DEF( void )
- ft_close_stream_by_munmap( FT_Stream stream )
- {
- munmap( (MUNMAP_ARG_CAST)stream->descriptor.pointer, stream->size );
-
- stream->descriptor.pointer = NULL;
- stream->size = 0;
- stream->base = 0;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* ft_close_stream_by_free */
- /* */
- /* <Description> */
- /* The function to close a stream which is created by ft_alloc. */
- /* */
- /* <Input> */
- /* stream :: A pointer to the stream object. */
- /* */
- FT_CALLBACK_DEF( void )
- ft_close_stream_by_free( FT_Stream stream )
- {
- ft_free( NULL, stream->descriptor.pointer );
-
- stream->descriptor.pointer = NULL;
- stream->size = 0;
- stream->base = 0;
- }
-
-
- /* documentation is in ftobjs.h */
-
- FT_BASE_DEF( FT_Error )
- FT_Stream_Open( FT_Stream stream,
- const char* filepathname )
- {
- int file;
- struct stat stat_buf;
-
-
- if ( !stream )
- return FT_Err_Invalid_Stream_Handle;
-
- /* open the file */
- file = open( filepathname, O_RDONLY );
- if ( file < 0 )
- {
- FT_ERROR(( "FT_Stream_Open:" ));
- FT_ERROR(( " could not open `%s'\n", filepathname ));
- return FT_Err_Cannot_Open_Resource;
- }
-
- /* Here we ensure that a "fork" will _not_ duplicate */
- /* our opened input streams on Unix. This is critical */
- /* since it avoids some (possible) access control */
- /* issues and cleans up the kernel file table a bit. */
- /* */
-#ifdef F_SETFD
-#ifdef FD_CLOEXEC
- (void)fcntl( file, F_SETFD, FD_CLOEXEC );
-#else
- (void)fcntl( file, F_SETFD, 1 );
-#endif /* FD_CLOEXEC */
-#endif /* F_SETFD */
-
- if ( fstat( file, &stat_buf ) < 0 )
- {
- FT_ERROR(( "FT_Stream_Open:" ));
- FT_ERROR(( " could not `fstat' file `%s'\n", filepathname ));
- goto Fail_Map;
- }
-
- /* XXX: TODO -- real 64bit platform support */
- /* */
- /* `stream->size' is typedef'd to unsigned long (in */
- /* freetype/ftsystem.h); `stat_buf.st_size', however, is usually */
- /* typedef'd to off_t (in sys/stat.h). */
- /* On some platforms, the former is 32bit and the latter is 64bit. */
- /* To avoid overflow caused by fonts in huge files larger than */
- /* 2GB, do a test. Temporary fix proposed by Sean McBride. */
- /* */
- if ( stat_buf.st_size > LONG_MAX )
- {
- FT_ERROR(( "FT_Stream_Open: file is too big\n" ));
- goto Fail_Map;
- }
- else if ( stat_buf.st_size == 0 )
- {
- FT_ERROR(( "FT_Stream_Open: zero-length file\n" ));
- goto Fail_Map;
- }
-
- /* This cast potentially truncates a 64bit to 32bit! */
- stream->size = (unsigned long)stat_buf.st_size;
- stream->pos = 0;
- stream->base = (unsigned char *)mmap( NULL,
- stream->size,
- PROT_READ,
- MAP_FILE | MAP_PRIVATE,
- file,
- 0 );
-
- /* on some RTOS, mmap might return 0 */
- if ( (long)stream->base != -1 && stream->base != NULL )
- stream->close = ft_close_stream_by_munmap;
- else
- {
- ssize_t total_read_count;
-
-
- FT_ERROR(( "FT_Stream_Open:" ));
- FT_ERROR(( " could not `mmap' file `%s'\n", filepathname ));
-
- stream->base = (unsigned char*)ft_alloc( NULL, stream->size );
-
- if ( !stream->base )
- {
- FT_ERROR(( "FT_Stream_Open:" ));
- FT_ERROR(( " could not `alloc' memory\n" ));
- goto Fail_Map;
- }
-
- total_read_count = 0;
- do {
- ssize_t read_count;
-
-
- read_count = read( file,
- stream->base + total_read_count,
- stream->size - total_read_count );
-
- if ( read_count <= 0 )
- {
- if ( read_count == -1 && errno == EINTR )
- continue;
-
- FT_ERROR(( "FT_Stream_Open:" ));
- FT_ERROR(( " error while `read'ing file `%s'\n", filepathname ));
- goto Fail_Read;
- }
-
- total_read_count += read_count;
-
- } while ( (unsigned long)total_read_count != stream->size );
-
- stream->close = ft_close_stream_by_free;
- }
-
- close( file );
-
- stream->descriptor.pointer = stream->base;
- stream->pathname.pointer = (char*)filepathname;
-
- stream->read = 0;
-
- FT_TRACE1(( "FT_Stream_Open:" ));
- FT_TRACE1(( " opened `%s' (%d bytes) successfully\n",
- filepathname, stream->size ));
-
- return FT_Err_Ok;
-
- Fail_Read:
- ft_free( NULL, stream->base );
-
- Fail_Map:
- close( file );
-
- stream->base = NULL;
- stream->size = 0;
- stream->pos = 0;
-
- return FT_Err_Cannot_Open_Stream;
- }
-
-
-#ifdef FT_DEBUG_MEMORY
-
- extern FT_Int
- ft_mem_debug_init( FT_Memory memory );
-
- extern void
- ft_mem_debug_done( FT_Memory memory );
-
-#endif
-
-
- /* documentation is in ftobjs.h */
-
- FT_BASE_DEF( FT_Memory )
- FT_New_Memory( void )
- {
- FT_Memory memory;
-
-
- memory = (FT_Memory)malloc( sizeof ( *memory ) );
- if ( memory )
- {
- memory->user = 0;
- memory->alloc = ft_alloc;
- memory->realloc = ft_realloc;
- memory->free = ft_free;
-#ifdef FT_DEBUG_MEMORY
- ft_mem_debug_init( memory );
-#endif
- }
-
- return memory;
- }
-
-
- /* documentation is in ftobjs.h */
-
- FT_BASE_DEF( void )
- FT_Done_Memory( FT_Memory memory )
- {
-#ifdef FT_DEBUG_MEMORY
- ft_mem_debug_done( memory );
-#endif
- memory->free( memory, memory );
- }
-
-
-/* END */