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authorscuri <scuri>2009-10-20 17:20:18 +0000
committerscuri <scuri>2009-10-20 17:20:18 +0000
commit27a4f9c4ac45ff65f941964f7351b64b1e6a9f35 (patch)
tree2f68c5d9ce5bf6cbc320ac17aef0a65a3ceb99a1 /src/freetype2/pcf
parent2b70507615b2611fce4294c65bec7264644e2665 (diff)
*** empty log message ***
Diffstat (limited to 'src/freetype2/pcf')
-rw-r--r--src/freetype2/pcf/README114
-rw-r--r--src/freetype2/pcf/pcf.h4
-rw-r--r--src/freetype2/pcf/pcfdrivr.c101
-rw-r--r--src/freetype2/pcf/pcfdrivr.h4
-rw-r--r--src/freetype2/pcf/pcfread.c63
-rw-r--r--src/freetype2/pcf/pcfutil.c8
-rw-r--r--src/freetype2/pcf/pcfutil.h6
7 files changed, 112 insertions, 188 deletions
diff --git a/src/freetype2/pcf/README b/src/freetype2/pcf/README
deleted file mode 100644
index cc1480b..0000000
--- a/src/freetype2/pcf/README
+++ /dev/null
@@ -1,114 +0,0 @@
- FreeType font driver for PCF fonts
-
- Francesco Zappa Nardelli
- <francesco.zappa.nardelli@ens.fr>
-
-
-Introduction
-************
-
-PCF (Portable Compiled Format) is a binary bitmap font format, largely used
-in X world. This code implements a PCF driver for the FreeType library.
-Glyph images are loaded into memory only on demand, thus leading to a small
-memory footprint.
-
-Information on the PCF font format can only be worked out from
-`pcfread.c', and `pcfwrite.c', to be found, for instance, in the XFree86
-(www.xfree86.org) source tree (xc/lib/font/bitmap/).
-
-Many good bitmap fonts in bdf format come with XFree86: they can be
-compiled into the pcf format using the `bdftopcf' utility.
-
-
-Supported hardware
-******************
-
-The driver has been tested on linux/x86 and sunos5.5/sparc. In both
-cases the compiler was gcc. When back in Paris, I will test it also
-on linux/alpha.
-
-
-Encodings
-*********
-
-The variety of encodings that accompanies pcf fonts appears to encompass the
-small set defined in freetype.h. On the other hand, each pcf font defines
-two properties that specify encoding and registry.
-
-I decided to make these two properties directly accessible, leaving to the
-client application the work of interpreting them. For instance:
-
- #include "pcftypes.h" /* include/freetype/internal/pcftypes.h */
-
- FT_Face face;
- PCF_Public_Face pcfface;
-
- FT_New_Face( library,..., &face );
-
- pcfface = (PCF_Public_Face)face;
-
- if ((pcfface->charset_registry == "ISO10646") &&
- (pcfface->charset_encoding) == "1")) [..]
-
-Thus the driver always export `ft_encoding_none' as
-face->charmap.encoding. FT_Get_Char_Index() behavior is unmodified, that
-is, it converts the ULong value given as argument into the corresponding
-glyph number.
-
-
-Known problems
-**************
-
-- dealing explicitly with encodings breaks the uniformity of freetype2
- api.
-
-- except for encodings properties, client applications have no
- visibility of the PCF_Face object. This means that applications
- cannot directly access font tables and are obliged to trust
- FreeType.
-
-- currently, glyph names and ink_metrics are ignored.
-
-I plan to give full visibility of the PCF_Face object in the next
-release of the driver, thus implementing also glyph names and
-ink_metrics.
-
-- height is defined as (ascent - descent). Is this correct?
-
-- if unable to read size information from the font, PCF_Init_Face
- sets available_size->width and available_size->height to 12.
-
-- too many english grammar errors in the readme file :-(
-
-
-License
-*******
-
-Copyright (C) 2000 by Francesco Zappa Nardelli
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-
-Credits
-*******
-
-Keith Packard wrote the pcf driver found in XFree86. His work is at
-the same time the specification and the sample implementation of the
-PCF format. Undoubtedly, this driver is inspired from his work.
diff --git a/src/freetype2/pcf/pcf.h b/src/freetype2/pcf/pcf.h
index 9d2d8e0..1cd56c1 100644
--- a/src/freetype2/pcf/pcf.h
+++ b/src/freetype2/pcf/pcf.h
@@ -72,8 +72,8 @@ FT_BEGIN_HEADER
union
{
FT_String* atom;
- FT_Long integer;
- FT_ULong cardinal;
+ FT_Long l;
+ FT_ULong ul;
} value;
diff --git a/src/freetype2/pcf/pcfdrivr.c b/src/freetype2/pcf/pcfdrivr.c
index c0f0e49..b34e542 100644
--- a/src/freetype2/pcf/pcfdrivr.c
+++ b/src/freetype2/pcf/pcfdrivr.c
@@ -2,7 +2,7 @@
FreeType font driver for pcf files
- Copyright (C) 2000, 2001, 2002, 2003, 2004, 2006 by
+ Copyright (C) 2000, 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009 by
Francesco Zappa Nardelli
Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -111,7 +111,7 @@ THE SOFTWARE.
while ( min < max )
{
- FT_UInt32 code;
+ FT_ULong code;
mid = ( min + max ) >> 1;
@@ -140,7 +140,7 @@ THE SOFTWARE.
PCF_CMap cmap = (PCF_CMap)pcfcmap;
PCF_Encoding encodings = cmap->encodings;
FT_UInt min, max, mid;
- FT_UInt32 charcode = *acharcode + 1;
+ FT_ULong charcode = *acharcode + 1;
FT_UInt result = 0;
@@ -149,7 +149,7 @@ THE SOFTWARE.
while ( min < max )
{
- FT_UInt32 code;
+ FT_ULong code;
mid = ( min + max ) >> 1;
@@ -175,7 +175,14 @@ THE SOFTWARE.
}
Exit:
- *acharcode = charcode;
+ if ( charcode > 0xFFFFFFFFUL )
+ {
+ FT_TRACE1(( "pcf_cmap_char_next: charcode 0x%x > 32bit API" ));
+ *acharcode = 0;
+ /* XXX: result should be changed to indicate an overflow error */
+ }
+ else
+ *acharcode = (FT_UInt32)charcode;
return result;
}
@@ -187,17 +194,24 @@ THE SOFTWARE.
pcf_cmap_init,
pcf_cmap_done,
pcf_cmap_char_index,
- pcf_cmap_char_next
+ pcf_cmap_char_next,
+
+ NULL, NULL, NULL, NULL, NULL
};
FT_CALLBACK_DEF( void )
PCF_Face_Done( FT_Face pcfface ) /* PCF_Face */
{
- PCF_Face face = (PCF_Face)pcfface;
- FT_Memory memory = FT_FACE_MEMORY( face );
+ PCF_Face face = (PCF_Face)pcfface;
+ FT_Memory memory;
+ if ( !face )
+ return;
+
+ memory = FT_FACE_MEMORY( face );
+
FT_FREE( face->encodings );
FT_FREE( face->metrics );
@@ -259,17 +273,26 @@ THE SOFTWARE.
error = pcf_load_font( stream, face );
if ( error )
{
- FT_Error error2;
+ PCF_Face_Done( pcfface );
+#if defined( FT_CONFIG_OPTION_USE_ZLIB ) || \
+ defined( FT_CONFIG_OPTION_USE_LZW )
- PCF_Face_Done( pcfface );
+#ifdef FT_CONFIG_OPTION_USE_ZLIB
+ {
+ FT_Error error2;
- /* this didn't work, try gzip support! */
- error2 = FT_Stream_OpenGzip( &face->gzip_stream, stream );
- if ( FT_ERROR_BASE( error2 ) == FT_Err_Unimplemented_Feature )
- goto Fail;
- error = error2;
+ /* this didn't work, try gzip support! */
+ error2 = FT_Stream_OpenGzip( &face->gzip_stream, stream );
+ if ( FT_ERROR_BASE( error2 ) == FT_Err_Unimplemented_Feature )
+ goto Fail;
+
+ error = error2;
+ }
+#endif /* FT_CONFIG_OPTION_USE_ZLIB */
+
+#ifdef FT_CONFIG_OPTION_USE_LZW
if ( error )
{
FT_Error error3;
@@ -281,29 +304,26 @@ THE SOFTWARE.
goto Fail;
error = error3;
- if ( error )
- goto Fail;
+ }
+#endif /* FT_CONFIG_OPTION_USE_LZW */
- face->gzip_source = stream;
- pcfface->stream = &face->gzip_stream;
+ if ( error )
+ goto Fail;
- stream = pcfface->stream;
+ face->gzip_source = stream;
+ pcfface->stream = &face->gzip_stream;
- error = pcf_load_font( stream, face );
- if ( error )
- goto Fail;
- }
- else
- {
- face->gzip_source = stream;
- pcfface->stream = &face->gzip_stream;
+ stream = pcfface->stream;
+
+ error = pcf_load_font( stream, face );
+ if ( error )
+ goto Fail;
- stream = pcfface->stream;
+#else /* !(FT_CONFIG_OPTION_USE_ZLIB || FT_CONFIG_OPTION_USE_LZW) */
- error = pcf_load_font( stream, face );
- if ( error )
- goto Fail;
- }
+ goto Fail;
+
+#endif
}
/* set up charmap */
@@ -402,7 +422,7 @@ THE SOFTWARE.
switch ( req->type )
{
case FT_SIZE_REQUEST_TYPE_NOMINAL:
- if ( height == ( bsize->y_ppem + 32 ) >> 6 )
+ if ( height == ( ( bsize->y_ppem + 32 ) >> 6 ) )
error = PCF_Err_Ok;
break;
@@ -431,11 +451,11 @@ THE SOFTWARE.
FT_Int32 load_flags )
{
PCF_Face face = (PCF_Face)FT_SIZE_FACE( size );
- FT_Stream stream = face->root.stream;
+ FT_Stream stream;
FT_Error error = PCF_Err_Ok;
FT_Bitmap* bitmap = &slot->bitmap;
PCF_Metric metric;
- int bytes;
+ FT_Offset bytes;
FT_UNUSED( load_flags );
@@ -448,6 +468,8 @@ THE SOFTWARE.
goto Exit;
}
+ stream = face->root.stream;
+
if ( glyph_index > 0 )
glyph_index--;
@@ -563,12 +585,17 @@ THE SOFTWARE.
}
else
{
+ if ( prop->value.l > 0x7FFFFFFFL || prop->value.l < ( -1 - 0x7FFFFFFFL ) )
+ {
+ FT_TRACE1(( "pcf_get_bdf_property: " ));
+ FT_TRACE1(( "too large integer 0x%x is truncated\n" ));
+ }
/* Apparently, the PCF driver loads all properties as signed integers!
* This really doesn't seem to be a problem, because this is
* sufficient for any meaningful values.
*/
aproperty->type = BDF_PROPERTY_TYPE_INTEGER;
- aproperty->u.integer = prop->value.integer;
+ aproperty->u.integer = (FT_Int32)prop->value.l;
}
return 0;
}
diff --git a/src/freetype2/pcf/pcfdrivr.h b/src/freetype2/pcf/pcfdrivr.h
index 7ddf697..a81d730 100644
--- a/src/freetype2/pcf/pcfdrivr.h
+++ b/src/freetype2/pcf/pcfdrivr.h
@@ -33,6 +33,10 @@ THE SOFTWARE.
FT_BEGIN_HEADER
+#ifdef FT_CONFIG_OPTION_PIC
+#error "this module does not support PIC yet"
+#endif
+
FT_EXPORT_VAR( const FT_Driver_ClassRec ) pcf_driver_class;
FT_END_HEADER
diff --git a/src/freetype2/pcf/pcfread.c b/src/freetype2/pcf/pcfread.c
index b9123cf..08becf9 100644
--- a/src/freetype2/pcf/pcfread.c
+++ b/src/freetype2/pcf/pcfread.c
@@ -2,7 +2,7 @@
FreeType font driver for pcf fonts
- Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 by
+ Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by
Francesco Zappa Nardelli
Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -32,7 +32,6 @@ THE SOFTWARE.
#include FT_INTERNAL_OBJECTS_H
#include "pcf.h"
-#include "pcfdrivr.h"
#include "pcfread.h"
#include "pcferror.h"
@@ -48,7 +47,7 @@ THE SOFTWARE.
#define FT_COMPONENT trace_pcfread
-#if defined( FT_DEBUG_LEVEL_TRACE )
+#ifdef FT_DEBUG_LEVEL_TRACE
static const char* const tableNames[] =
{
"prop", "accl", "mtrcs", "bmps", "imtrcs",
@@ -152,7 +151,7 @@ THE SOFTWARE.
break;
}
-#if defined( FT_DEBUG_LEVEL_TRACE )
+#ifdef FT_DEBUG_LEVEL_TRACE
{
FT_UInt i, j;
@@ -290,13 +289,13 @@ THE SOFTWARE.
static FT_Error
pcf_seek_to_table_type( FT_Stream stream,
PCF_Table tables,
- FT_Int ntables,
+ FT_ULong ntables, /* same as PCF_Toc->count */
FT_ULong type,
FT_ULong *aformat,
FT_ULong *asize )
{
FT_Error error = PCF_Err_Invalid_File_Format;
- FT_Int i;
+ FT_ULong i;
for ( i = 0; i < ntables; i++ )
@@ -328,10 +327,10 @@ THE SOFTWARE.
static FT_Bool
pcf_has_table_type( PCF_Table tables,
- FT_Int ntables,
+ FT_ULong ntables, /* same as PCF_Toc->count */
FT_ULong type )
{
- FT_Int i;
+ FT_ULong i;
for ( i = 0; i < ntables; i++ )
@@ -400,7 +399,7 @@ THE SOFTWARE.
{
PCF_ParseProperty props = 0;
PCF_Property properties;
- FT_UInt nprops, i;
+ FT_ULong nprops, i;
FT_ULong format, size;
FT_Error error;
FT_Memory memory = FT_FACE(face)->memory;
@@ -434,7 +433,10 @@ THE SOFTWARE.
if ( error )
goto Bail;
- FT_TRACE4(( " nprop = %d\n", nprops ));
+ FT_TRACE4(( " nprop = %d (truncate %d props)\n",
+ (int)nprops, nprops - (int)nprops ));
+
+ nprops = (int)nprops;
/* rough estimate */
if ( nprops > size / PCF_PROPERTY_SIZE )
@@ -443,7 +445,7 @@ THE SOFTWARE.
goto Bail;
}
- face->nprops = nprops;
+ face->nprops = (int)nprops;
if ( FT_NEW_ARRAY( props, nprops ) )
goto Bail;
@@ -470,7 +472,11 @@ THE SOFTWARE.
if ( nprops & 3 )
{
i = 4 - ( nprops & 3 );
- FT_Stream_Skip( stream, i );
+ if ( FT_STREAM_SKIP( i ) )
+ {
+ error = PCF_Err_Invalid_Stream_Skip;
+ goto Bail;
+ }
}
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
@@ -539,9 +545,9 @@ THE SOFTWARE.
}
else
{
- properties[i].value.integer = props[i].value;
+ properties[i].value.l = props[i].value;
- FT_TRACE4(( " %d\n", properties[i].value.integer ));
+ FT_TRACE4(( " %d\n", properties[i].value.l ));
}
}
@@ -623,7 +629,7 @@ THE SOFTWARE.
metrics = face->metrics;
for ( i = 0; i < nmetrics; i++ )
{
- pcf_get_metric( stream, format, metrics + i );
+ error = pcf_get_metric( stream, format, metrics + i );
metrics[i].bits = 0;
@@ -658,7 +664,7 @@ THE SOFTWARE.
FT_Long* offsets;
FT_Long bitmapSizes[GLYPHPADOPTIONS];
FT_ULong format, size;
- int nbitmaps, i, sizebitmaps = 0;
+ FT_ULong nbitmaps, i, sizebitmaps = 0;
error = pcf_seek_to_table_type( stream,
@@ -689,7 +695,8 @@ THE SOFTWARE.
FT_TRACE4(( " number of bitmaps: %d\n", nbitmaps ));
- if ( nbitmaps != face->nmetrics )
+ /* XXX: PCF_Face->nmetrics is singed FT_Long, see pcf.h */
+ if ( face->nmetrics < 0 || nbitmaps != ( FT_ULong )face->nmetrics )
return PCF_Err_Invalid_File_Format;
if ( FT_NEW_ARRAY( offsets, nbitmaps ) )
@@ -735,8 +742,8 @@ THE SOFTWARE.
if ( ( offsets[i] < 0 ) ||
( (FT_ULong)offsets[i] > size ) )
{
- FT_ERROR(( "pcf_get_bitmaps:"));
- FT_ERROR(( " invalid offset to bitmap data of glyph %d\n", i ));
+ FT_TRACE0(( "pcf_get_bitmaps:"
+ " invalid offset to bitmap data of glyph %d\n", i ));
}
else
face->metrics[i].bits = stream->pos + offsets[i];
@@ -989,9 +996,9 @@ THE SOFTWARE.
PCF_Property prop;
- int nn, len;
- char* strings[4] = { NULL, NULL, NULL, NULL };
- int lengths[4];
+ size_t nn, len;
+ char* strings[4] = { NULL, NULL, NULL, NULL };
+ size_t lengths[4];
face->style_flags = 0;
@@ -1073,7 +1080,7 @@ THE SOFTWARE.
/* add_style_name and setwidth_name */
if ( nn == 0 || nn == 3 )
{
- int mm;
+ size_t mm;
for ( mm = 0; mm < len; mm++ )
@@ -1198,7 +1205,7 @@ THE SOFTWARE.
prop = pcf_find_property( face, "AVERAGE_WIDTH" );
if ( prop )
- bsize->width = (FT_Short)( ( prop->value.integer + 5 ) / 10 );
+ bsize->width = (FT_Short)( ( prop->value.l + 5 ) / 10 );
else
bsize->width = (FT_Short)( bsize->height * 2/3 );
@@ -1206,19 +1213,19 @@ THE SOFTWARE.
if ( prop )
/* convert from 722.7 decipoints to 72 points per inch */
bsize->size =
- (FT_Pos)( ( prop->value.integer * 64 * 7200 + 36135L ) / 72270L );
+ (FT_Pos)( ( prop->value.l * 64 * 7200 + 36135L ) / 72270L );
prop = pcf_find_property( face, "PIXEL_SIZE" );
if ( prop )
- bsize->y_ppem = (FT_Short)prop->value.integer << 6;
+ bsize->y_ppem = (FT_Short)prop->value.l << 6;
prop = pcf_find_property( face, "RESOLUTION_X" );
if ( prop )
- resolution_x = (FT_Short)prop->value.integer;
+ resolution_x = (FT_Short)prop->value.l;
prop = pcf_find_property( face, "RESOLUTION_Y" );
if ( prop )
- resolution_y = (FT_Short)prop->value.integer;
+ resolution_y = (FT_Short)prop->value.l;
if ( bsize->y_ppem == 0 )
{
diff --git a/src/freetype2/pcf/pcfutil.c b/src/freetype2/pcf/pcfutil.c
index 67ddbe8..b91274f 100644
--- a/src/freetype2/pcf/pcfutil.c
+++ b/src/freetype2/pcf/pcfutil.c
@@ -42,9 +42,9 @@ in this Software without prior written authorization from The Open Group.
FT_LOCAL_DEF( void )
BitOrderInvert( unsigned char* buf,
- int nbytes )
+ size_t nbytes )
{
- for ( ; --nbytes >= 0; buf++ )
+ for ( ; nbytes > 0; nbytes--, buf++ )
{
unsigned int val = *buf;
@@ -64,7 +64,7 @@ in this Software without prior written authorization from The Open Group.
FT_LOCAL_DEF( void )
TwoByteSwap( unsigned char* buf,
- int nbytes )
+ size_t nbytes )
{
unsigned char c;
@@ -83,7 +83,7 @@ in this Software without prior written authorization from The Open Group.
FT_LOCAL_DEF( void )
FourByteSwap( unsigned char* buf,
- int nbytes )
+ size_t nbytes )
{
unsigned char c;
diff --git a/src/freetype2/pcf/pcfutil.h b/src/freetype2/pcf/pcfutil.h
index 1557be3..ce10fb5 100644
--- a/src/freetype2/pcf/pcfutil.h
+++ b/src/freetype2/pcf/pcfutil.h
@@ -37,15 +37,15 @@ FT_BEGIN_HEADER
FT_LOCAL( void )
BitOrderInvert( unsigned char* buf,
- int nbytes );
+ size_t nbytes );
FT_LOCAL( void )
TwoByteSwap( unsigned char* buf,
- int nbytes );
+ size_t nbytes );
FT_LOCAL( void )
FourByteSwap( unsigned char* buf,
- int nbytes );
+ size_t nbytes );
FT_END_HEADER