ref: ed913c2151e40eda626d8d2809ed3229aade2941
parent: 7774ac67ec562add4212930c82e402a7d7cdff8b
author: Joel Klinghed <[email protected]>
date: Fri Dec 31 11:59:33 EST 2010
Add bzip2 compression support to handle *.pcf.bz2 files. * builds/unix/configure.raw: Test for libbz2 library. * devel/ftoption.h, include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_BZIP2): Define. * include/freetype/config/ftheader.h (FT_BZIP2_H): Define. * include/freetype/ftbzip2.h: New file. * src/bzip2/*: New files. * src/pcf/pcf.h: s/gzip_/comp_/. * src/pcf/pcfdrvr.c: Include FT_BZIP2_H. s/gzip_/comp_/. (PCF_Face_Init): Handle bzip2 compressed files. * docs/formats.txt, modules.cfg: Updated.
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,8 +1,29 @@
+2010-12-31 Joel Klinghed <[email protected]>
+
+ Add bzip2 compression support to handle *.pcf.bz2 files.
+
+ * builds/unix/configure.raw: Test for libbz2 library.
+
+ * devel/ftoption.h, include/freetype/config/ftoption.h
+ (FT_CONFIG_OPTION_USE_BZIP2): Define.
+ * include/freetype/config/ftheader.h (FT_BZIP2_H): Define.
+
+ * include/freetype/ftbzip2.h: New file.
+
+ * src/bzip2/*: New files.
+
+ * src/pcf/pcf.h: s/gzip_/comp_/.
+ * src/pcf/pcfdrvr.c: Include FT_BZIP2_H.
+ s/gzip_/comp_/.
+ (PCF_Face_Init): Handle bzip2 compressed files.
+
+ * docs/formats.txt, modules.cfg: Updated.
+
2010-12-25 Harsha <[email protected]>
Apply Savannah patch #7422.
- If we encouter a space in a string then the sbit buffer is NULL,
+ If we encounter a space in a string then the sbit buffer is NULL,
height and width are 0s. So the check in ftc_snode_compare will
always pass for spaces (comparision with 255). Here the comments
above the condition are proper but the implementation is not. When
--- a/builds/unix/configure.raw
+++ b/builds/unix/configure.raw
@@ -229,7 +229,21 @@
SYSTEM_ZLIB=yes
fi
+# check for system libbz2
+# don't quote AS_HELP_STRING!
+AC_ARG_WITH([bzip2],
+ AS_HELP_STRING([--without-bzip2],
+ [do not support bzip2 compressed fonts]))
+if test x$with_bzip2 != xno && test -z "$LIBBZ2"; then
+ AC_CHECK_LIB([bz2], [BZ2_bzDecompress], [AC_CHECK_HEADER([bzlib.h], [LIBBZ2='-lbz2'])])
+fi
+if test x$with_bzip2 != xno && test -n "$LIBBZ2"; then
+ CFLAGS="$CFLAGS -DFT_CONFIG_OPTION_USE_BZIP2"
+ LDFLAGS="$LDFLAGS $LIBBZ2"
+ SYSTEM_BZ2LIB=yes
+fi
+
# Some options handling SDKs/archs in CFLAGS should be copied
# to LDFLAGS. Apple TechNote 2137 recommends to include these
# options in CFLAGS but not in LDFLAGS.
@@ -644,10 +658,12 @@
AC_SUBST([ftmac_c])
AC_SUBST([LIBZ])
+AC_SUBST([LIBBZ2])
AC_SUBST([CFLAGS])
AC_SUBST([LDFLAGS])
AC_SUBST([FT2_EXTRA_LIBS])
AC_SUBST([SYSTEM_ZLIB])
+AC_SUBST([SYSTEM_BZ2LIB])
LT_INIT(win32-dll)
--- a/devel/ftoption.h
+++ b/devel/ftoption.h
@@ -190,6 +190,22 @@
/*************************************************************************/
/* */
+ /* Bzip2-compressed file support. */
+ /* */
+ /* FreeType now handles font files that have been compressed with the */
+ /* `bzip2' program. This is mostly used to parse many of the PCF */
+ /* files that come with XFree86. The implementation uses `libbz2' to */
+ /* partially uncompress the file on the fly (see src/bzip2/ftbzip2.c). */
+ /* Contrary to gzip, bzip2 currently is not included and need to use */
+ /* the system available bzip2 implementation. */
+ /* */
+ /* Define this macro if you want to enable this `feature'. */
+ /* */
+/* #define FT_CONFIG_OPTION_USE_BZIP2 */
+
+
+ /*************************************************************************/
+ /* */
/* DLL export compilation */
/* */
/* When compiling FreeType as a DLL, some systems/compilers need a */
--- a/docs/formats.txt
+++ b/docs/formats.txt
@@ -11,8 +11,9 @@
wrapper format:
The format used to represent the font data. In the table below it
is used only if the font format differs. Possible values are `SFNT'
- (binary), `PS' (a text header, followed by binary or text data), and
- `LZW' (compressed with either `gzip' or `compress').
+ (binary), `PS' (a text header, followed by binary or text data),
+ `LZW' (compressed with either `gzip' or `compress'), and
+ `BZ2' (compressed with `bzip2`).
font format:
How the font is to be accessed, possibly after converting the file
@@ -113,6 +114,7 @@
--- --- PCF --- --- pcf X11 [4]
--- LZW PCF --- --- pcf X11 [4]
+--- BZ2 PCF --- --- pcf X11 [4]
--- --- PFR PFR0 --- pfr [2]
--- a/include/freetype/config/ftheader.h
+++ b/include/freetype/config/ftheader.h
@@ -4,7 +4,7 @@
/* */
/* Build macros of the FreeType 2 library. */
/* */
-/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by */
+/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2010 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -422,6 +422,19 @@
*
*/
#define FT_LZW_H <freetype/ftlzw.h>
+
+
+ /*************************************************************************
+ *
+ * @macro:
+ * FT_BZIP2_H
+ *
+ * @description:
+ * A macro used in #include statements to name the file containing the
+ * definitions of an API which supports bzip2-compressed files.
+ *
+ */
+#define FT_BZIP2_H <freetype/ftbzip2.h>
/*************************************************************************
--- a/include/freetype/config/ftoption.h
+++ b/include/freetype/config/ftoption.h
@@ -190,6 +190,22 @@
/*************************************************************************/
/* */
+ /* Bzip2-compressed file support. */
+ /* */
+ /* FreeType now handles font files that have been compressed with the */
+ /* `bzip2' program. This is mostly used to parse many of the PCF */
+ /* files that come with XFree86. The implementation uses `libbz2' to */
+ /* partially uncompress the file on the fly (see src/bzip2/ftbzip2.c). */
+ /* Contrary to gzip, bzip2 currently is not included and need to use */
+ /* the system available bzip2 implementation. */
+ /* */
+ /* Define this macro if you want to enable this `feature'. */
+ /* */
+/* #define FT_CONFIG_OPTION_USE_BZIP2 */
+
+
+ /*************************************************************************/
+ /* */
/* DLL export compilation */
/* */
/* When compiling FreeType as a DLL, some systems/compilers need a */
--- /dev/null
+++ b/include/freetype/ftbzip2.h
@@ -1,0 +1,102 @@
+/***************************************************************************/
+/* */
+/* ftbzip2.h */
+/* */
+/* Bzip2-compressed stream support. */
+/* */
+/* Copyright 2010 by */
+/* Joel Klinghed. */
+/* */
+/* 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 __FTBZIP2_H__
+#define __FTBZIP2_H__
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+
+#ifdef FREETYPE_H
+#error "freetype.h of FreeType 1 has been loaded!"
+#error "Please fix the directory search order for header files"
+#error "so that freetype.h of FreeType 2 is found first."
+#endif
+
+
+FT_BEGIN_HEADER
+
+ /*************************************************************************/
+ /* */
+ /* <Section> */
+ /* bzip2 */
+ /* */
+ /* <Title> */
+ /* BZIP2 Streams */
+ /* */
+ /* <Abstract> */
+ /* Using bzip2-compressed font files. */
+ /* */
+ /* <Description> */
+ /* This section contains the declaration of Bzip2-specific functions. */
+ /* */
+ /*************************************************************************/
+
+
+ /************************************************************************
+ *
+ * @function:
+ * FT_Stream_OpenBzip2
+ *
+ * @description:
+ * Open a new stream to parse bzip2-compressed font files. This is
+ * mainly used to support the compressed `*.pcf.gz' fonts that come
+ * with XFree86.
+ *
+ * @input:
+ * stream ::
+ * The target embedding stream.
+ *
+ * source ::
+ * The source stream.
+ *
+ * @return:
+ * FreeType error code. 0~means success.
+ *
+ * @note:
+ * The source stream must be opened _before_ calling this function.
+ *
+ * Calling the internal function `FT_Stream_Close' on the new stream will
+ * *not* call `FT_Stream_Close' on the source stream. None of the stream
+ * objects will be released to the heap.
+ *
+ * The stream implementation is very basic and resets the decompression
+ * process each time seeking backwards is needed within the stream.
+ *
+ * In certain builds of the library, bzip2 compression recognition is
+ * automatically handled when calling @FT_New_Face or @FT_Open_Face.
+ * This means that if no font driver is capable of handling the raw
+ * compressed file, the library will try to open a bzip2 compressed stream
+ * from it and re-open the face with it.
+ *
+ * This function may return `FT_Err_Unimplemented_Feature' if your build
+ * of FreeType was not compiled with bzip2 support.
+ */
+ FT_EXPORT( FT_Error )
+ FT_Stream_OpenBzip2( FT_Stream stream,
+ FT_Stream source );
+
+ /* */
+
+
+FT_END_HEADER
+
+#endif /* __FTBZIP2_H__ */
+
+
+/* END */
--- a/modules.cfg
+++ b/modules.cfg
@@ -1,6 +1,6 @@
# modules.cfg
#
-# Copyright 2005, 2006, 2007, 2009 by
+# Copyright 2005, 2006, 2007, 2009, 2010 by
# David Turner, Robert Wilhelm, and Werner Lemberg.
#
# This file is part of the FreeType project, and may only be used, modified,
@@ -121,6 +121,11 @@
#
# See include/freetype/ftlzw.h for the API.
AUX_MODULES += lzw
+
+# Support for streams compressed with bzip2 (files with suffix .bz2).
+#
+# See include/freetype/ftbzip2.h for the API.
+AUX_MODULES += bzip2
# OpenType table validation. Needs ftotval.c below.
#
--- /dev/null
+++ b/src/bzip2/Jamfile
@@ -1,0 +1,19 @@
+# FreeType 2 src/bzip2 Jamfile
+#
+# Copyright 2010 by
+# Joel Klinghed
+#
+# Based on src/lzw/Jamfile, Copyright 2004, 2006 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.
+
+SubDir FT2_TOP $(FT2_SRC_DIR) bzip2 ;
+
+Library $(FT2_LIB) : ftbzip2.c ;
+
+# end of src/bzip2 Jamfile
--- /dev/null
+++ b/src/bzip2/ftbzip2.c
@@ -1,0 +1,510 @@
+/***************************************************************************/
+/* */
+/* ftbzip2.c */
+/* */
+/* FreeType support for .bz2 compressed files. */
+/* */
+/* This optional component relies on libbz2. It should mainly be used to */
+/* parse compressed PCF fonts, as found with many X11 server */
+/* distributions. */
+/* */
+/* Copyright 2010 by */
+/* Joel Klinghed. */
+/* */
+/* Based on src/gzip/ftgzip.c, Copyright 2002 - 2010 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>
+#include FT_INTERNAL_MEMORY_H
+#include FT_INTERNAL_STREAM_H
+#include FT_INTERNAL_DEBUG_H
+#include FT_BZIP2_H
+#include FT_CONFIG_STANDARD_LIBRARY_H
+
+
+#include FT_MODULE_ERRORS_H
+
+#undef __FTERRORS_H__
+
+#define FT_ERR_PREFIX Bzip2_Err_
+#define FT_ERR_BASE FT_Mod_Err_Bzip2
+
+#include FT_ERRORS_H
+
+
+#ifdef FT_CONFIG_OPTION_USE_BZIP2
+
+#ifdef FT_CONFIG_OPTION_PIC
+#error "bzip2 code does not support PIC yet"
+#endif
+
+#define BZ_NO_STDIO /* Do not need FILE */
+#include <bzlib.h>
+
+
+/***************************************************************************/
+/***************************************************************************/
+/***** *****/
+/***** B Z I P 2 M E M O R Y M A N A G E M E N T *****/
+/***** *****/
+/***************************************************************************/
+/***************************************************************************/
+
+ /* it is better to use FreeType memory routines instead of raw
+ 'malloc/free' */
+
+ typedef void *(* alloc_func)(void*, int, int);
+ typedef void (* free_func)(void*, void*);
+
+ static void*
+ ft_bzip2_alloc( FT_Memory memory,
+ int items,
+ int size )
+ {+ FT_ULong sz = (FT_ULong)size * items;
+ FT_Error error;
+ FT_Pointer p = NULL;
+
+
+ (void)FT_ALLOC( p, sz );
+ return p;
+ }
+
+
+ static void
+ ft_bzip2_free( FT_Memory memory,
+ void* address )
+ {+ FT_MEM_FREE( address );
+ }
+
+
+/***************************************************************************/
+/***************************************************************************/
+/***** *****/
+/***** B Z I P 2 F I L E D E S C R I P T O R *****/
+/***** *****/
+/***************************************************************************/
+/***************************************************************************/
+
+#define FT_BZIP2_BUFFER_SIZE 4096
+
+ typedef struct FT_BZip2FileRec_
+ {+ FT_Stream source; /* parent/source stream */
+ FT_Stream stream; /* embedding stream */
+ FT_Memory memory; /* memory allocator */
+ bz_stream bzstream; /* bzlib input stream */
+
+ FT_Byte input[FT_BZIP2_BUFFER_SIZE]; /* input read buffer */
+
+ FT_Byte buffer[FT_BZIP2_BUFFER_SIZE]; /* output buffer */
+ FT_ULong pos; /* position in output */
+ FT_Byte* cursor;
+ FT_Byte* limit;
+
+ } FT_BZip2FileRec, *FT_BZip2File;
+
+
+ /* check and skip .bz2 header - we don't support `transparent' compression */
+ static FT_Error
+ ft_bzip2_check_header( FT_Stream stream )
+ {+ FT_Error error = Bzip2_Err_Ok;
+ FT_Byte head[4];
+
+
+ if ( FT_STREAM_SEEK( 0 ) ||
+ FT_STREAM_READ( head, 4 ) )
+ goto Exit;
+
+ /* head[0] && head[1] are the magic numbers; */
+ /* head[2] is the version, and head[3] the blocksize */
+ if ( head[0] != 0x42 ||
+ head[1] != 0x5a ||
+ head[2] != 0x68 ) /* only support bzip2 (huffman) */
+ {+ error = Bzip2_Err_Invalid_File_Format;
+ goto Exit;
+ }
+
+ Exit:
+ return error;
+ }
+
+
+ static FT_Error
+ ft_bzip2_file_init( FT_BZip2File zip,
+ FT_Stream stream,
+ FT_Stream source )
+ {+ bz_stream* bzstream = &zip->bzstream;
+ FT_Error error = Bzip2_Err_Ok;
+
+
+ zip->stream = stream;
+ zip->source = source;
+ zip->memory = stream->memory;
+
+ zip->limit = zip->buffer + FT_BZIP2_BUFFER_SIZE;
+ zip->cursor = zip->limit;
+ zip->pos = 0;
+
+ /* check .bz2 header */
+ {+ stream = source;
+
+ error = ft_bzip2_check_header( stream );
+ if ( error )
+ goto Exit;
+
+ if ( FT_STREAM_SEEK( 0 ) )
+ goto Exit;
+ }
+
+ /* initialize bzlib */
+ bzstream->bzalloc = (alloc_func)ft_bzip2_alloc;
+ bzstream->bzfree = (free_func) ft_bzip2_free;
+ bzstream->opaque = zip->memory;
+
+ bzstream->avail_in = 0;
+ bzstream->next_in = (char*)zip->buffer;
+
+ if ( BZ2_bzDecompressInit( bzstream, 0, 0 ) != BZ_OK ||
+ bzstream->next_in == NULL )
+ error = Bzip2_Err_Invalid_File_Format;
+
+ Exit:
+ return error;
+ }
+
+
+ static void
+ ft_bzip2_file_done( FT_BZip2File zip )
+ {+ bz_stream* bzstream = &zip->bzstream;
+
+
+ BZ2_bzDecompressEnd( bzstream );
+
+ /* clear the rest */
+ bzstream->bzalloc = NULL;
+ bzstream->bzfree = NULL;
+ bzstream->opaque = NULL;
+ bzstream->next_in = NULL;
+ bzstream->next_out = NULL;
+ bzstream->avail_in = 0;
+ bzstream->avail_out = 0;
+
+ zip->memory = NULL;
+ zip->source = NULL;
+ zip->stream = NULL;
+ }
+
+
+ static FT_Error
+ ft_bzip2_file_reset( FT_BZip2File zip )
+ {+ FT_Stream stream = zip->source;
+ FT_Error error;
+
+
+ if ( !FT_STREAM_SEEK( 0 ) )
+ {+ bz_stream* bzstream = &zip->bzstream;
+
+
+ BZ2_bzDecompressEnd( bzstream );
+
+ bzstream->avail_in = 0;
+ bzstream->next_in = (char*)zip->input;
+ bzstream->avail_out = 0;
+ bzstream->next_out = (char*)zip->buffer;
+
+ zip->limit = zip->buffer + FT_BZIP2_BUFFER_SIZE;
+ zip->cursor = zip->limit;
+ zip->pos = 0;
+
+ BZ2_bzDecompressInit( bzstream, 0, 0 );
+ }
+
+ return error;
+ }
+
+
+ static FT_Error
+ ft_bzip2_file_fill_input( FT_BZip2File zip )
+ {+ bz_stream* bzstream = &zip->bzstream;
+ FT_Stream stream = zip->source;
+ FT_ULong size;
+
+
+ if ( stream->read )
+ {+ size = stream->read( stream, stream->pos, zip->input,
+ FT_BZIP2_BUFFER_SIZE );
+ if ( size == 0 )
+ return Bzip2_Err_Invalid_Stream_Operation;
+ }
+ else
+ {+ size = stream->size - stream->pos;
+ if ( size > FT_BZIP2_BUFFER_SIZE )
+ size = FT_BZIP2_BUFFER_SIZE;
+
+ if ( size == 0 )
+ return Bzip2_Err_Invalid_Stream_Operation;
+
+ FT_MEM_COPY( zip->input, stream->base + stream->pos, size );
+ }
+ stream->pos += size;
+
+ bzstream->next_in = (char*)zip->input;
+ bzstream->avail_in = size;
+
+ return Bzip2_Err_Ok;
+ }
+
+
+ static FT_Error
+ ft_bzip2_file_fill_output( FT_BZip2File zip )
+ {+ bz_stream* bzstream = &zip->bzstream;
+ FT_Error error = Bzip2_Err_Ok;
+
+
+ zip->cursor = zip->buffer;
+ bzstream->next_out = (char*)zip->cursor;
+ bzstream->avail_out = FT_BZIP2_BUFFER_SIZE;
+
+ while ( bzstream->avail_out > 0 )
+ {+ int err;
+
+
+ if ( bzstream->avail_in == 0 )
+ {+ error = ft_bzip2_file_fill_input( zip );
+ if ( error )
+ break;
+ }
+
+ err = BZ2_bzDecompress( bzstream );
+
+ if ( err == BZ_STREAM_END )
+ {+ zip->limit = (FT_Byte*)bzstream->next_out;
+ if ( zip->limit == zip->cursor )
+ error = Bzip2_Err_Invalid_Stream_Operation;
+ break;
+ }
+ else if ( err != BZ_OK )
+ {+ error = Bzip2_Err_Invalid_Stream_Operation;
+ break;
+ }
+ }
+
+ return error;
+ }
+
+
+ /* fill output buffer; `count' must be <= FT_BZIP2_BUFFER_SIZE */
+ static FT_Error
+ ft_bzip2_file_skip_output( FT_BZip2File zip,
+ FT_ULong count )
+ {+ FT_Error error = Bzip2_Err_Ok;
+ FT_ULong delta;
+
+
+ for (;;)
+ {+ delta = (FT_ULong)( zip->limit - zip->cursor );
+ if ( delta >= count )
+ delta = count;
+
+ zip->cursor += delta;
+ zip->pos += delta;
+
+ count -= delta;
+ if ( count == 0 )
+ break;
+
+ error = ft_bzip2_file_fill_output( zip );
+ if ( error )
+ break;
+ }
+
+ return error;
+ }
+
+
+ static FT_ULong
+ ft_bzip2_file_io( FT_BZip2File zip,
+ FT_ULong pos,
+ FT_Byte* buffer,
+ FT_ULong count )
+ {+ FT_ULong result = 0;
+ FT_Error error;
+
+
+ /* Reset inflate stream if we're seeking backwards. */
+ /* Yes, that is not too efficient, but it saves memory :-) */
+ if ( pos < zip->pos )
+ {+ error = ft_bzip2_file_reset( zip );
+ if ( error )
+ goto Exit;
+ }
+
+ /* skip unwanted bytes */
+ if ( pos > zip->pos )
+ {+ error = ft_bzip2_file_skip_output( zip, (FT_ULong)( pos - zip->pos ) );
+ if ( error )
+ goto Exit;
+ }
+
+ if ( count == 0 )
+ goto Exit;
+
+ /* now read the data */
+ for (;;)
+ {+ FT_ULong delta;
+
+
+ delta = (FT_ULong)( zip->limit - zip->cursor );
+ if ( delta >= count )
+ delta = count;
+
+ FT_MEM_COPY( buffer, zip->cursor, delta );
+ buffer += delta;
+ result += delta;
+ zip->cursor += delta;
+ zip->pos += delta;
+
+ count -= delta;
+ if ( count == 0 )
+ break;
+
+ error = ft_bzip2_file_fill_output( zip );
+ if ( error )
+ break;
+ }
+
+ Exit:
+ return result;
+ }
+
+
+/***************************************************************************/
+/***************************************************************************/
+/***** *****/
+/***** B Z E M B E D D I N G S T R E A M *****/
+/***** *****/
+/***************************************************************************/
+/***************************************************************************/
+
+ static void
+ ft_bzip2_stream_close( FT_Stream stream )
+ {+ FT_BZip2File zip = (FT_BZip2File)stream->descriptor.pointer;
+ FT_Memory memory = stream->memory;
+
+
+ if ( zip )
+ {+ /* finalize bzip file descriptor */
+ ft_bzip2_file_done( zip );
+
+ FT_FREE( zip );
+
+ stream->descriptor.pointer = NULL;
+ }
+ }
+
+
+ static FT_ULong
+ ft_bzip2_stream_io( FT_Stream stream,
+ FT_ULong pos,
+ FT_Byte* buffer,
+ FT_ULong count )
+ {+ FT_BZip2File zip = (FT_BZip2File)stream->descriptor.pointer;
+
+
+ return ft_bzip2_file_io( zip, pos, buffer, count );
+ }
+
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Stream_OpenBzip2( FT_Stream stream,
+ FT_Stream source )
+ {+ FT_Error error;
+ FT_Memory memory = source->memory;
+ FT_BZip2File zip;
+
+
+ /*
+ * check the header right now; this prevents allocating unnecessary
+ * objects when we don't need them
+ */
+ error = ft_bzip2_check_header( source );
+ if ( error )
+ goto Exit;
+
+ FT_ZERO( stream );
+ stream->memory = memory;
+
+ if ( !FT_QNEW( zip ) )
+ {+ error = ft_bzip2_file_init( zip, stream, source );
+ if ( error )
+ {+ FT_FREE( zip );
+ goto Exit;
+ }
+
+ stream->descriptor.pointer = zip;
+ }
+
+ stream->size = 0x7FFFFFFFL; /* don't know the real size! */
+ stream->pos = 0;
+ stream->base = 0;
+ stream->read = ft_bzip2_stream_io;
+ stream->close = ft_bzip2_stream_close;
+
+ Exit:
+ return error;
+ }
+
+#else /* !FT_CONFIG_OPTION_USE_BZIP2 */
+
+ FT_EXPORT_DEF( FT_Error )
+ FT_Stream_OpenBzip2( FT_Stream stream,
+ FT_Stream source )
+ {+ FT_UNUSED( stream );
+ FT_UNUSED( source );
+
+ return Bzip2_Err_Unimplemented_Feature;
+ }
+
+#endif /* !FT_CONFIG_OPTION_USE_BZIP2 */
+
+
+/* END */
--- /dev/null
+++ b/src/bzip2/rules.mk
@@ -1,0 +1,63 @@
+#
+# FreeType 2 BZIP2 support configuration rules
+#
+
+# Copyright 2010 by
+# Joel Klinghed.
+#
+# Based on src/lzw/rules.mk, Copyright 2004-2006 by
+# Albert Chin-A-Young.
+#
+# 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.
+
+
+# BZIP2 driver directory
+#
+BZIP2_DIR := $(SRC_DIR)/bzip2
+
+
+# compilation flags for the driver
+#
+BZIP2_COMPILE := $(FT_COMPILE)
+
+
+# BZIP2 support sources (i.e., C files)
+#
+BZIP2_DRV_SRC := $(BZIP2_DIR)/ftbzip2.c
+
+# BZIP2 driver object(s)
+#
+# BZIP2_DRV_OBJ_M is used during `multi' builds
+# BZIP2_DRV_OBJ_S is used during `single' builds
+#
+BZIP2_DRV_OBJ_M := $(OBJ_DIR)/ftbzip2.$O
+BZIP2_DRV_OBJ_S := $(OBJ_DIR)/ftbzip2.$O
+
+# BZIP2 support source file for single build
+#
+BZIP2_DRV_SRC_S := $(BZIP2_DIR)/ftbzip2.c
+
+
+# BZIP2 support - single object
+#
+$(BZIP2_DRV_OBJ_S): $(BZIP2_DRV_SRC_S) $(BZIP2_DRV_SRC) $(FREETYPE_H) $(BZIP2_DRV_H)
+ $(BZIP2_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(BZIP2_DRV_SRC_S))
+
+
+# BZIP2 support - multiple objects
+#
+$(OBJ_DIR)/%.$O: $(BZIP2_DIR)/%.c $(FREETYPE_H) $(BZIP2_DRV_H)
+ $(BZIP2_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
+
+
+# update main driver object lists
+#
+DRV_OBJS_S += $(BZIP2_DRV_OBJ_S)
+DRV_OBJS_M += $(BZIP2_DRV_OBJ_M)
+
+
+# EOF
--- a/src/pcf/pcf.h
+++ b/src/pcf/pcf.h
@@ -2,7 +2,7 @@
FreeType font driver for pcf fonts
- Copyright (C) 2000, 2001, 2002, 2003, 2006 by
+ Copyright (C) 2000, 2001, 2002, 2003, 2006, 2010 by
Francesco Zappa Nardelli
Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -136,8 +136,8 @@
{FT_FaceRec root;
- FT_StreamRec gzip_stream;
- FT_Stream gzip_source;
+ FT_StreamRec comp_stream;
+ FT_Stream comp_source;
char* charset_encoding;
char* charset_registry;
--- a/src/pcf/pcfdrivr.c
+++ b/src/pcf/pcfdrivr.c
@@ -2,7 +2,8 @@
FreeType font driver for pcf files
- Copyright (C) 2000, 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009 by
+ Copyright (C) 2000, 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009,
+ 2010 by
Francesco Zappa Nardelli
Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -32,6 +33,7 @@
#include FT_INTERNAL_OBJECTS_H
#include FT_GZIP_H
#include FT_LZW_H
+#include FT_BZIP2_H
#include FT_ERRORS_H
#include FT_BDF_H
#include FT_TRUETYPE_IDS_H
@@ -248,11 +250,11 @@
FT_TRACE4(( "PCF_Face_Done: done face\n" ));
- /* close gzip/LZW stream if any */
- if ( pcfface->stream == &face->gzip_stream )
+ /* close compressed stream if any */
+ if ( pcfface->stream == &face->comp_stream )
{- FT_Stream_Close( &face->gzip_stream );
- pcfface->stream = face->gzip_source;
+ FT_Stream_Close( &face->comp_stream );
+ pcfface->stream = face->comp_source;
}
}
@@ -277,8 +279,9 @@
{PCF_Face_Done( pcfface );
-#if defined( FT_CONFIG_OPTION_USE_ZLIB ) || \
- defined( FT_CONFIG_OPTION_USE_LZW )
+#if defined( FT_CONFIG_OPTION_USE_ZLIB ) || \
+ defined( FT_CONFIG_OPTION_USE_LZW ) || \
+ defined( FT_CONFIG_OPTION_USE_BZIP2 )
#ifdef FT_CONFIG_OPTION_USE_ZLIB
{@@ -286,7 +289,7 @@
/* this didn't work, try gzip support! */
- error2 = FT_Stream_OpenGzip( &face->gzip_stream, stream );
+ error2 = FT_Stream_OpenGzip( &face->comp_stream, stream );
if ( FT_ERROR_BASE( error2 ) == FT_Err_Unimplemented_Feature )
goto Fail;
@@ -301,7 +304,7 @@
/* this didn't work, try LZW support! */
- error3 = FT_Stream_OpenLZW( &face->gzip_stream, stream );
+ error3 = FT_Stream_OpenLZW( &face->comp_stream, stream );
if ( FT_ERROR_BASE( error3 ) == FT_Err_Unimplemented_Feature )
goto Fail;
@@ -309,11 +312,26 @@
}
#endif /* FT_CONFIG_OPTION_USE_LZW */
+#ifdef FT_CONFIG_OPTION_USE_BZIP2
if ( error )
+ {+ FT_Error error4;
+
+
+ /* this didn't work, try Bzip2 support! */
+ error4 = FT_Stream_OpenBzip2( &face->comp_stream, stream );
+ if ( FT_ERROR_BASE( error4 ) == FT_Err_Unimplemented_Feature )
+ goto Fail;
+
+ error = error4;
+ }
+#endif /* FT_CONFIG_OPTION_USE_BZIP2 */
+
+ if ( error )
goto Fail;
- face->gzip_source = stream;
- pcfface->stream = &face->gzip_stream;
+ face->comp_source = stream;
+ pcfface->stream = &face->comp_stream;
stream = pcfface->stream;
@@ -321,7 +339,9 @@
if ( error )
goto Fail;
-#else /* !(FT_CONFIG_OPTION_USE_ZLIB || FT_CONFIG_OPTION_USE_LZW) */
+#else /* !(FT_CONFIG_OPTION_USE_ZLIB ||
+ FT_CONFIG_OPTION_USE_LZW ||
+ FT_CONFIG_OPTION_USE_BZIP2) */
goto Fail;