本文整理汇总了C++中FT_STREAM_READ函数的典型用法代码示例。如果您正苦于以下问题：C++ FT_STREAM_READ函数的具体用法？C++ FT_STREAM_READ怎么用？C++ FT_STREAM_READ使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了FT_STREAM_READ函数的18个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: cff_index_read_offset
/* read an offset from the index's stream current position */
static FT_ULong
cff_index_read_offset( CFF_Index idx,
FT_Error *errorp )
{
FT_Error error;
FT_Stream stream = idx->stream;
FT_Byte tmp[4];
FT_ULong result = 0;
if ( !FT_STREAM_READ( tmp, idx->off_size ) )
{
FT_Int nn;
for ( nn = 0; nn < idx->off_size; nn++ )
result = ( result << 8 ) | tmp[nn];
}
*errorp = error;
return result;
}
开发者ID:DjinCN，项目名称:libFreeType2，代码行数:23，代码来源:cffload.c
示例2: ft_bzip2_check_header
/* check and skip .bz2 header - we don't support `transparent' compression */
static FT_Error
ft_bzip2_check_header( FT_Stream stream )
{
FT_Error error = FT_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 = FT_THROW( Invalid_File_Format );
goto Exit;
}
Exit:
return error;
}
开发者ID:03050903，项目名称:Urho3D，代码行数:25，代码来源:ftbzip2.c
示例3: tt_face_get_name
//.........这里部分代码省略.........
break;
case TT_PLATFORM_MICROSOFT:
/* we only take a non-English name when there is nothing */
/* else available in the font */
/* */
if (found_win == -1 || (rec->languageID & 0x3FF) == 0x009)
{
switch (rec->encodingID)
{
case TT_MS_ID_SYMBOL_CS:
case TT_MS_ID_UNICODE_CS:
case TT_MS_ID_UCS_4:
is_english = FT_BOOL((rec->languageID & 0x3FF) == 0x009);
found_win = n;
break;
default:
;
}
}
break;
default:
;
}
}
}
found_apple = found_apple_roman;
if (found_apple_english >= 0)
found_apple = found_apple_english;
/* some fonts contain invalid Unicode or Macintosh formatted entries; */
/* we will thus favor names encoded in Windows formats if available */
/* (provided it is an English name) */
/* */
convert = NULL;
if (found_win >= 0 && !(found_apple >= 0 && !is_english))
{
rec = face->name_table.names + found_win;
switch (rec->encodingID)
{
/* all Unicode strings are encoded using UTF-16BE */
case TT_MS_ID_UNICODE_CS:
case TT_MS_ID_SYMBOL_CS:
convert = tt_name_entry_ascii_from_utf16;
break;
case TT_MS_ID_UCS_4:
/* Apparently, if this value is found in a name table entry, it is */
/* documented as `full Unicode repertoire'. Experience with the */
/* MsGothic font shipped with Windows Vista shows that this really */
/* means UTF-16 encoded names (UCS-4 values are only used within */
/* charmaps). */
convert = tt_name_entry_ascii_from_utf16;
break;
default:
;
}
}
else if (found_apple >= 0)
{
rec = face->name_table.names + found_apple;
convert = tt_name_entry_ascii_from_other;
}
else if (found_unicode >= 0)
{
rec = face->name_table.names + found_unicode;
convert = tt_name_entry_ascii_from_utf16;
}
if (rec && convert)
{
if (rec->string == NULL)
{
FT_Stream stream = face->name_table.stream;
if (FT_QNEW_ARRAY (rec->string, rec->stringLength) ||
FT_STREAM_SEEK(rec->stringOffset) ||
FT_STREAM_READ(rec->string, rec->stringLength))
{
FT_FREE(rec->string);
rec->stringLength = 0;
result = NULL;
goto Exit;
}
}
result = convert(rec, memory);
}
Exit:
*name = result;
return error;
}
开发者ID:hyyh619，项目名称:OpenSceneGraph-3.4.0，代码行数:101，代码来源:sfobjs.c
示例4: load_format_25
static FT_Error
load_format_25( TT_Face face,
FT_Stream stream,
FT_ULong post_limit )
{
FT_Memory memory = stream->memory;
FT_Error error;
FT_Int num_glyphs;
FT_Char* offset_table = NULL;
FT_UNUSED( post_limit );
/* UNDOCUMENTED! This value appears only in the Apple TT specs. */
if ( FT_READ_USHORT( num_glyphs ) )
goto Exit;
/* check the number of glyphs */
if ( num_glyphs > face->max_profile.numGlyphs || num_glyphs > 258 )
{
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
if ( FT_NEW_ARRAY( offset_table, num_glyphs ) ||
FT_STREAM_READ( offset_table, num_glyphs ) )
goto Fail;
/* now check the offset table */
{
FT_Int n;
for ( n = 0; n < num_glyphs; n++ )
{
FT_Long idx = (FT_Long)n + offset_table[n];
if ( idx < 0 || idx > num_glyphs )
{
error = FT_THROW( Invalid_File_Format );
goto Fail;
}
}
}
/* OK, set table fields and exit successfully */
{
TT_Post_25 table = &face->postscript_names.names.format_25;
table->num_glyphs = (FT_UShort)num_glyphs;
table->offsets = offset_table;
}
return FT_Err_Ok;
Fail:
FT_FREE( offset_table );
Exit:
return error;
}
开发者ID:hsmith，项目名称:freetype，代码行数:64，代码来源:ttpost.c
示例5: load_format_20
//.........这里部分代码省略.........
{
FT_Int idx;
idx = glyph_indices[n];
if ( idx >= 258 )
{
idx -= 257;
if ( idx > num_names )
num_names = (FT_UShort)idx;
}
}
}
/* now load the name strings */
{
FT_UShort n;
if ( FT_NEW_ARRAY( name_strings, num_names ) )
goto Fail;
for ( n = 0; n < num_names; n++ )
{
FT_UInt len;
if ( FT_STREAM_POS() >= post_limit )
break;
else
{
FT_TRACE6(( "load_format_20: %d byte left in post table\n",
post_limit - FT_STREAM_POS() ));
if ( FT_READ_BYTE( len ) )
goto Fail1;
}
if ( len > post_limit ||
FT_STREAM_POS() > post_limit - len )
{
FT_Int d = (FT_Int)post_limit - (FT_Int)FT_STREAM_POS();
FT_ERROR(( "load_format_20:"
" exceeding string length (%d),"
" truncating at end of post table (%d byte left)\n",
len, d ));
len = (FT_UInt)FT_MAX( 0, d );
}
if ( FT_NEW_ARRAY( name_strings[n], len + 1 ) ||
FT_STREAM_READ( name_strings[n], len ) )
goto Fail1;
name_strings[n][len] = '\0';
}
if ( n < num_names )
{
FT_ERROR(( "load_format_20:"
" all entries in post table are already parsed,"
" using NULL names for gid %d - %d\n",
n, num_names - 1 ));
for ( ; n < num_names; n++ )
if ( FT_NEW_ARRAY( name_strings[n], 1 ) )
goto Fail1;
else
name_strings[n][0] = '\0';
}
}
/* all right, set table fields and exit successfully */
{
TT_Post_20 table = &face->postscript_names.names.format_20;
table->num_glyphs = (FT_UShort)num_glyphs;
table->num_names = (FT_UShort)num_names;
table->glyph_indices = glyph_indices;
table->glyph_names = name_strings;
}
return FT_Err_Ok;
Fail1:
{
FT_UShort n;
for ( n = 0; n < num_names; n++ )
FT_FREE( name_strings[n] );
}
Fail:
FT_FREE( name_strings );
FT_FREE( glyph_indices );
Exit:
return error;
}
开发者ID:hsmith，项目名称:freetype，代码行数:101，代码来源:ttpost.c
示例6: tt_face_get_name
//.........这里部分代码省略.........
/* field only as a last solution when nothing else is */
/* available. */
/* */
found_unicode = n;
break;
case TT_PLATFORM_MACINTOSH:
if ( rec->languageID == TT_MAC_LANGID_ENGLISH )
found_apple = n;
break;
case TT_PLATFORM_MICROSOFT:
/* we only take a non-English name when there is nothing */
/* else available in the font */
/* */
if ( found_win == -1 || ( rec->languageID & 0x3FF ) == 0x009 )
{
switch ( rec->encodingID )
{
case TT_MS_ID_SYMBOL_CS:
case TT_MS_ID_UNICODE_CS:
case TT_MS_ID_UCS_4:
is_english = FT_BOOL( ( rec->languageID & 0x3FF ) == 0x009 );
found_win = n;
break;
default:
;
}
}
break;
default:
;
}
}
}
/* some fonts contain invalid Unicode or Macintosh formatted entries; */
/* we will thus favor names encoded in Windows formats if available */
/* (provided it is an English name) */
/* */
convert = NULL;
if ( found_win >= 0 && !( found_apple >= 0 && !is_english ) )
{
rec = face->name_table.names + found_win;
switch ( rec->encodingID )
{
case TT_MS_ID_UNICODE_CS:
case TT_MS_ID_SYMBOL_CS:
convert = tt_name_entry_ascii_from_utf16;
break;
case TT_MS_ID_UCS_4:
convert = tt_name_entry_ascii_from_ucs4;
break;
default:
;
}
}
else if ( found_apple >= 0 )
{
rec = face->name_table.names + found_apple;
convert = tt_name_entry_ascii_from_other;
}
else if ( found_unicode >= 0 )
{
rec = face->name_table.names + found_unicode;
convert = tt_name_entry_ascii_from_utf16;
}
if ( rec && convert )
{
if ( rec->string == NULL )
{
FT_Error error = SFNT_Err_Ok;
FT_Stream stream = face->name_table.stream;
FT_UNUSED( error );
if ( FT_QNEW_ARRAY ( rec->string, rec->stringLength ) ||
FT_STREAM_SEEK( rec->stringOffset ) ||
FT_STREAM_READ( rec->string, rec->stringLength ) )
{
FT_FREE( rec->string );
rec->stringLength = 0;
result = NULL;
goto Exit;
}
}
result = convert( rec, memory );
}
Exit:
return result;
}
开发者ID:Bracket-，项目名称:psp-ports，代码行数:101，代码来源:sfobjs.c
示例7: t42_parser_init
t42_parser_init( T42_Parser parser,
FT_Stream stream,
FT_Memory memory,
PSAux_Service psaux )
{
FT_Error error = FT_Err_Ok;
FT_Long size;
psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory );
parser->stream = stream;
parser->base_len = 0;
parser->base_dict = 0;
parser->in_memory = 0;
/*******************************************************************/
/* */
/* Here a short summary of what is going on: */
/* */
/* When creating a new Type 42 parser, we try to locate and load */
/* the base dictionary, loading the whole font into memory. */
/* */
/* When `loading' the base dictionary, we only set up pointers */
/* in the case of a memory-based stream. Otherwise, we allocate */
/* and load the base dictionary in it. */
/* */
/* parser->in_memory is set if we have a memory stream. */
/* */
if ( FT_STREAM_SEEK( 0L ) ||
FT_FRAME_ENTER( 17 ) )
goto Exit;
if ( ft_memcmp( stream->cursor, "%!PS-TrueTypeFont", 17 ) != 0 )
{
FT_TRACE2(( " not a Type42 font\n" ));
error = FT_THROW( Unknown_File_Format );
}
FT_FRAME_EXIT();
if ( error || FT_STREAM_SEEK( 0 ) )
goto Exit;
size = stream->size;
/* now, try to load `size' bytes of the `base' dictionary we */
/* found previously */
/* if it is a memory-based resource, set up pointers */
if ( !stream->read )
{
parser->base_dict = (FT_Byte*)stream->base + stream->pos;
parser->base_len = size;
parser->in_memory = 1;
/* check that the `size' field is valid */
if ( FT_STREAM_SKIP( size ) )
goto Exit;
}
else
{
/* read segment in memory */
if ( FT_ALLOC( parser->base_dict, size ) ||
FT_STREAM_READ( parser->base_dict, size ) )
goto Exit;
parser->base_len = size;
}
parser->root.base = parser->base_dict;
parser->root.cursor = parser->base_dict;
parser->root.limit = parser->root.cursor + parser->base_len;
Exit:
if ( error && !parser->in_memory )
FT_FREE( parser->base_dict );
return error;
}
开发者ID:03050903，项目名称:libgdx，代码行数:81，代码来源:t42parse.hpp
示例8: cid_parser_new
cid_parser_new( CID_Parser* parser,
FT_Stream stream,
FT_Memory memory,
PSAux_Service psaux )
{
FT_Error error;
FT_ULong base_offset, offset, ps_len;
FT_Byte *cur, *limit;
FT_Byte *arg1, *arg2;
FT_ZERO( parser );
psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory );
parser->stream = stream;
base_offset = FT_STREAM_POS();
/* first of all, check the font format in the header */
if ( FT_FRAME_ENTER( 31 ) )
goto Exit;
if ( ft_strncmp( (char *)stream->cursor,
"%!PS-Adobe-3.0 Resource-CIDFont", 31 ) )
{
FT_TRACE2(( " not a CID-keyed font\n" ));
error = FT_THROW( Unknown_File_Format );
}
FT_FRAME_EXIT();
if ( error )
goto Exit;
Again:
/* now, read the rest of the file until we find */
/* `StartData' or `/sfnts' */
{
/*
* The algorithm is as follows (omitting the case with less than 256
* bytes to fill for simplicity).
*
* 1. Fill the buffer with 256 + STARTDATA_LEN bytes.
*
* 2. Search for the STARTDATA and SFNTS strings at positions
* buffer[0], buffer[1], ...,
* buffer[255 + STARTDATA_LEN - SFNTS_LEN].
*
* 3. Move the last STARTDATA_LEN bytes to buffer[0].
*
* 4. Fill the buffer with 256 bytes, starting at STARTDATA_LEN.
*
* 5. Repeat with step 2.
*
*/
FT_Byte buffer[256 + STARTDATA_LEN + 1];
/* values for the first loop */
FT_ULong read_len = 256 + STARTDATA_LEN;
FT_ULong read_offset = 0;
FT_Byte* p = buffer;
for ( offset = FT_STREAM_POS(); ; offset += 256 )
{
FT_ULong stream_len;
stream_len = stream->size - FT_STREAM_POS();
read_len = FT_MIN( read_len, stream_len );
if ( FT_STREAM_READ( p, read_len ) )
goto Exit;
/* ensure that we do not compare with data beyond the buffer */
p[read_len] = '\0';
limit = p + read_len - SFNTS_LEN;
for ( p = buffer; p < limit; p++ )
{
if ( p[0] == 'S' &&
ft_strncmp( (char*)p, STARTDATA, STARTDATA_LEN ) == 0 )
{
/* save offset of binary data after `StartData' */
offset += (FT_ULong)( p - buffer ) + STARTDATA_LEN + 1;
goto Found;
}
else if ( p[1] == 's' &&
ft_strncmp( (char*)p, SFNTS, SFNTS_LEN ) == 0 )
{
offset += (FT_ULong)( p - buffer ) + SFNTS_LEN + 1;
goto Found;
}
}
if ( read_offset + read_len < STARTDATA_LEN )
{
FT_TRACE2(( "cid_parser_new: no `StartData' keyword found\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
//.........这里部分代码省略.........
开发者ID:GWRon，项目名称:pub.mod-NG，代码行数:101，代码来源:cidparse.c
示例9: T1_Get_Private_Dict
T1_Get_Private_Dict( T1_Parser parser,
PSAux_Service psaux )
{
FT_Stream stream = parser->stream;
FT_Memory memory = parser->root.memory;
FT_Error error = FT_Err_Ok;
FT_ULong size;
if ( parser->in_pfb )
{
/* in the case of the PFB format, the private dictionary can be */
/* made of several segments. We thus first read the number of */
/* segments to compute the total size of the private dictionary */
/* then re-read them into memory. */
FT_Long start_pos = FT_STREAM_POS();
FT_UShort tag;
parser->private_len = 0;
for (;;)
{
error = read_pfb_tag( stream, &tag, &size );
if ( error )
goto Fail;
if ( tag != 0x8002U )
break;
parser->private_len += size;
if ( FT_STREAM_SKIP( size ) )
goto Fail;
}
/* Check that we have a private dictionary there */
/* and allocate private dictionary buffer */
if ( parser->private_len == 0 )
{
FT_ERROR(( "T1_Get_Private_Dict:"
" invalid private dictionary section\n" ));
error = FT_THROW( Invalid_File_Format );
goto Fail;
}
if ( FT_STREAM_SEEK( start_pos ) ||
FT_ALLOC( parser->private_dict, parser->private_len ) )
goto Fail;
parser->private_len = 0;
for (;;)
{
error = read_pfb_tag( stream, &tag, &size );
if ( error || tag != 0x8002U )
{
error = FT_Err_Ok;
break;
}
if ( FT_STREAM_READ( parser->private_dict + parser->private_len,
size ) )
goto Fail;
parser->private_len += size;
}
}
else
{
/* We have already `loaded' the whole PFA font file into memory; */
/* if this is a memory resource, allocate a new block to hold */
/* the private dict. Otherwise, simply overwrite into the base */
/* dictionary block in the heap. */
/* first of all, look at the `eexec' keyword */
FT_Byte* cur = parser->base_dict;
FT_Byte* limit = cur + parser->base_len;
FT_Byte c;
Again:
for (;;)
{
c = cur[0];
if ( c == 'e' && cur + 9 < limit ) /* 9 = 5 letters for `eexec' + */
/* whitespace + 4 chars */
{
if ( cur[1] == 'e' &&
cur[2] == 'x' &&
cur[3] == 'e' &&
cur[4] == 'c' )
break;
}
cur++;
if ( cur >= limit )
{
FT_ERROR(( "T1_Get_Private_Dict:"
" could not find `eexec' keyword\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
//.........这里部分代码省略.........
开发者ID:PrinttingGroup，项目名称:SumatraPDF_SpecialPrint，代码行数:101，代码来源:t1parse.c
示例10: cid_parser_new
cid_parser_new( CID_Parser* parser,
FT_Stream stream,
FT_Memory memory,
PSAux_Service psaux )
{
FT_Error error;
FT_ULong base_offset, offset, ps_len;
FT_Byte buffer[256 + 10];
FT_Int buff_len;
FT_Byte *cur, *limit;
FT_Byte *arg1, *arg2;
FT_MEM_ZERO( parser, sizeof ( *parser ) );
psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory );
parser->stream = stream;
base_offset = FT_STREAM_POS();
/* first of all, check the font format in the header */
if ( FT_FRAME_ENTER( 31 ) )
goto Exit;
if ( ft_strncmp( (char *)stream->cursor,
"%!PS-Adobe-3.0 Resource-CIDFont", 31 ) )
{
FT_TRACE2(( "[not a valid CID-keyed font]\n" ));
error = CID_Err_Unknown_File_Format;
}
FT_FRAME_EXIT();
if ( error )
goto Exit;
Again:
/* now, read the rest of the file until we find a `StartData' */
buff_len = 256;
for (;;)
{
FT_Byte* p;
FT_ULong top_position;
/* fill input buffer */
limit = buffer + 256;
buff_len -= 256;
if ( buff_len > 0 )
FT_MEM_MOVE( buffer, limit, buff_len );
p = buffer + buff_len;
if ( FT_STREAM_READ( p, 256 + 10 - buff_len ) )
goto Exit;
top_position = FT_STREAM_POS() - buff_len;
buff_len = 256 + 10;
/* look for `StartData' */
for ( p = buffer; p < limit; p++ )
{
if ( p[0] == 'S' && ft_strncmp( (char*)p, "StartData", 9 ) == 0 )
{
/* save offset of binary data after `StartData' */
offset = (FT_ULong)( top_position - ( limit - p ) + 10 );
goto Found;
}
}
}
Found:
/* we have found the start of the binary data. We will now */
/* rewind and extract the frame corresponding to the PostScript */
/* section */
ps_len = offset - base_offset;
if ( FT_STREAM_SEEK( base_offset ) ||
FT_FRAME_EXTRACT( ps_len, parser->postscript ) )
goto Exit;
parser->data_offset = offset;
parser->postscript_len = ps_len;
parser->root.base = parser->postscript;
parser->root.cursor = parser->postscript;
parser->root.limit = parser->root.cursor + ps_len;
parser->num_dict = -1;
/* Finally, we check whether `StartData' was real -- it could be */
/* in a comment or string. We also get its arguments to find out */
/* whether the data is represented in binary or hex format. */
arg1 = parser->root.cursor;
cid_parser_skip_PS_token( parser );
cid_parser_skip_spaces ( parser );
arg2 = parser->root.cursor;
cid_parser_skip_PS_token( parser );
cid_parser_skip_spaces ( parser );
limit = parser->root.limit;
cur = parser->root.cursor;
//.........这里部分代码省略.........
开发者ID:allanw1，项目名称:Arianrhod，代码行数:101，代码来源:cidparse.c
示例11: cid_parser_new
cid_parser_new( CID_Parser* parser,
FT_Stream stream,
FT_Memory memory,
PSAux_Service psaux )
{
FT_Error error;
FT_ULong base_offset, offset, ps_len;
FT_Byte *cur, *limit;
FT_Byte *arg1, *arg2;
FT_MEM_ZERO( parser, sizeof ( *parser ) );
psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory );
parser->stream = stream;
base_offset = FT_STREAM_POS();
/* first of all, check the font format in the header */
if ( FT_FRAME_ENTER( 31 ) )
goto Exit;
if ( ft_strncmp( (char *)stream->cursor,
"%!PS-Adobe-3.0 Resource-CIDFont", 31 ) )
{
FT_TRACE2(( " not a CID-keyed font\n" ));
error = FT_THROW( Unknown_File_Format );
}
FT_FRAME_EXIT();
if ( error )
goto Exit;
Again:
/* now, read the rest of the file until we find */
/* `StartData' or `/sfnts' */
{
FT_Byte buffer[256 + 10];
FT_ULong read_len = 256 + 10;
FT_Byte* p = buffer;
for ( offset = FT_STREAM_POS(); ; offset += 256 )
{
FT_ULong stream_len;
stream_len = stream->size - FT_STREAM_POS();
if ( stream_len == 0 )
{
FT_TRACE2(( "cid_parser_new: no `StartData' keyword found\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
read_len = FT_MIN( read_len, stream_len );
if ( FT_STREAM_READ( p, read_len ) )
goto Exit;
if ( read_len < 256 )
p[read_len] = '\0';
limit = p + read_len - 10;
for ( p = buffer; p < limit; p++ )
{
if ( p[0] == 'S' && ft_strncmp( (char*)p, "StartData", 9 ) == 0 )
{
/* save offset of binary data after `StartData' */
offset += (FT_ULong)( p - buffer + 10 );
goto Found;
}
else if ( p[1] == 's' && ft_strncmp( (char*)p, "/sfnts", 6 ) == 0 )
{
offset += (FT_ULong)( p - buffer + 7 );
goto Found;
}
}
FT_MEM_MOVE( buffer, p, 10 );
read_len = 256;
p = buffer + 10;
}
}
Found:
/* We have found the start of the binary data or the `/sfnts' token. */
/* Now rewind and extract the frame corresponding to this PostScript */
/* section. */
ps_len = offset - base_offset;
if ( FT_STREAM_SEEK( base_offset ) ||
FT_FRAME_EXTRACT( ps_len, parser->postscript ) )
goto Exit;
parser->data_offset = offset;
parser->postscript_len = ps_len;
parser->root.base = parser->postscript;
parser->root.cursor = parser->postscript;
parser->root.limit = parser->root.cursor + ps_len;
//.........这里部分代码省略.........
开发者ID:Johnny-Martin，项目名称:ComBase，代码行数:101，代码来源:cidparse.c
示例12: load_format_20
static FT_Error
load_format_20( TT_Face face,
FT_Stream stream )
{
FT_Memory memory = stream->memory;
FT_Error error;
FT_Int num_glyphs;
FT_UShort num_names;
FT_UShort* glyph_indices = 0;
FT_Char** name_strings = 0;
if ( FT_READ_USHORT( num_glyphs ) )
goto Exit;
/* UNDOCUMENTED! The number of glyphs in this table can be smaller */
/* than the value in the maxp table (cf. cyberbit.ttf). */
/* There already exist fonts which have more than 32768 glyph names */
/* in this table, so the test for this threshold has been dropped. */
if ( num_glyphs > face->root.num_glyphs )
{
error = SFNT_Err_Invalid_File_Format;
goto Exit;
}
/* load the indices */
{
FT_Int n;
if ( FT_NEW_ARRAY ( glyph_indices, num_glyphs ) ||
FT_FRAME_ENTER( num_glyphs * 2L ) )
goto Fail;
for ( n = 0; n < num_glyphs; n++ )
glyph_indices[n] = FT_GET_USHORT();
FT_FRAME_EXIT();
}
/* compute number of names stored in table */
{
FT_Int n;
num_names = 0;
for ( n = 0; n < num_glyphs; n++ )
{
FT_Int idx;
idx = glyph_indices[n];
if ( idx >= 258 )
{
idx -= 257;
if ( idx > num_names )
num_names = (FT_UShort)idx;
}
}
}
/* now load the name strings */
{
FT_UShort n;
if ( FT_NEW_ARRAY( name_strings, num_names ) )
goto Fail;
for ( n = 0; n < num_names; n++ )
{
FT_UInt len;
if ( FT_READ_BYTE ( len ) ||
FT_NEW_ARRAY( name_strings[n], len + 1 ) ||
FT_STREAM_READ ( name_strings[n], len ) )
goto Fail1;
name_strings[n][len] = '\0';
}
}
/* all right, set table fields and exit successfuly */
{
TT_Post_20 table = &face->postscript_names.names.format_20;
table->num_glyphs = (FT_UShort)num_glyphs;
table->num_names = (FT_UShort)num_names;
table->glyph_indices = glyph_indices;
table->glyph_names = name_strings;
}
return SFNT_Err_Ok;
//.........这里部分代码省略.........
开发者ID:1tgr，项目名称:mobius，代码行数:101，代码来源:ttpost.c
示例13: T1_Get_Private_Dict
T1_Get_Private_Dict( T1_Parser parser,
PSAux_Service psaux )
{
FT_Stream stream = parser->stream;
FT_Memory memory = parser->root.memory;
FT_Error error = 0;
FT_Long size;
if ( parser->in_pfb )
{
/* in the case of the PFB format, the private dictionary can be */
/* made of several segments. We thus first read the number of */
/* segments to compute the total size of the private dictionary */
/* then re-read them into memory. */
FT_Long start_pos = FT_STREAM_POS();
FT_UShort tag;
parser->private_len = 0;
for (;;)
{
error = read_pfb_tag( stream, &tag, &size );
if ( error )
goto Fail;
if ( tag != 0x8002U )
break;
parser->private_len += size;
if ( FT_STREAM_SKIP( size ) )
goto Fail;
}
/* Check that we have a private dictionary there */
/* and allocate private dictionary buffer */
if ( parser->private_len == 0 )
{
FT_ERROR(( "T1_Get_Private_Dict:" ));
FT_ERROR(( " invalid private dictionary section\n" ));
error = T1_Err_Invalid_File_Format;
goto Fail;
}
if ( FT_STREAM_SEEK( start_pos ) ||
FT_ALLOC( parser->private_dict, parser->private_len ) )
goto Fail;
parser->private_len = 0;
for (;;)
{
error = read_pfb_tag( stream, &tag, &size );
if ( error || tag != 0x8002U )
{
error = T1_Err_Ok;
break;
}
if ( FT_STREAM_READ( parser->private_dict + parser->private_len, size ) )
goto Fail;
parser->private_len += size;
}
}
else
{
/* we have already `loaded' the whole PFA font file into memory; */
/* if this is a memory resource, allocate a new block to hold */
/* the private dict. Otherwise, simply overwrite into the base */
/* dictionary block in the heap. */
/* first of all, look at the `eexec' keyword */
FT_Byte* cur = parser->base_dict;
FT_Byte* limit = cur + parser->base_len;
FT_Byte c;
for (;;)
{
c = cur[0];
if ( c == 'e' && cur + 9 < limit ) /* 9 = 5 letters for `eexec' + */
/* newline + 4 chars */
{
if ( cur[1] == 'e' && cur[2] == 'x' &&
cur[3] == 'e' && cur[4] == 'c' )
{
cur += 6; /* we skip the newling after the `eexec' */
/* XXX: Some fonts use DOS-linefeeds, i.e. \r\n; we need to */
/* skip the extra \n if we find it */
if ( cur[0] == '\n' )
cur++;
break;
}
}
cur++;
if ( cur >= limit )
{
//.........这里部分代码省略.........
开发者ID:8l，项目名称:inferno，代码行数:101，代码来源:t1parse.c
示例14: ft_gzip_check_header
/* check and skip .gz header - we don't support `transparent' compression */
static FT_Error
ft_gzip_check_header( FT_Stream stream )
{
FT_Error error;
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 method, and head[3] the flags */
if ( head[0] != 0x1f ||
head[1] != 0x8b ||
head[2] != Z_DEFLATED ||
(head[3] & FT_GZIP_RESERVED) )
{
error = Gzip_Err_Invalid_File_Format;
goto Exit;
}
/* skip time, xflags and os code */
(void)FT_STREAM_SKIP( 6 );
/* skip the extra field */
if ( head[3] & FT_GZIP_EXTRA_FIELD )
{
FT_UInt len;
if ( FT_READ_USHORT_LE( len ) ||
FT_STREAM_SKIP( len ) )
goto Exit;
}
/* skip original file name */
if ( head[3] & FT_GZIP_ORIG_NAME )
for (;;)
{
FT_UInt c;
if ( FT_READ_BYTE( c ) )
goto Exit;
if ( c == 0 )
break;
}
/* skip .gz comment */
if ( head[3] & FT_GZIP_COMMENT )
for (;;)
{
FT_UInt c;
if ( FT_READ_BYTE( c ) )
goto Exit;
if ( c == 0 )
break;
}
/* skip CRC */
if ( head[3] & FT_GZIP_HEAD_CRC )
if ( FT_STREAM_SKIP( 2 ) )
goto Exit;
Exit:
return error;
}
开发者ID:bowlofstew，项目名称:Aquaria，代码行数:73，代码来源:ftgzip.c
示例15: CID_New_Parser
CID_New_Parser( CID_Parser* parser,
FT_Stream stream,
FT_Memory memory,
PSAux_Service psaux )
{
FT_Error error;
FT_ULong base_offset, offset, ps_len;
FT_Byte buffer[256 + 10];
FT_Int buff_len;
FT_MEM_SET( parser, 0, sizeof ( *parser ) );
psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory );
parser->stream = stream;
base_offset = FT_STREAM_POS();
/* first of all, check the font format in the header */
if ( FT_FRAME_ENTER( 31 ) )
goto Exit;
if ( ft_strncmp( (char *)stream->cursor,
"%!PS-Adobe-3.0 Resource-CIDFont", 31 ) )
{
FT_TRACE2(( "[not a valid CID-keyed font]\n" ));
error = CID_Err_Unknown_File_Format;
}
FT_FRAME_EXIT();
if ( error )
goto Exit;
/* now, read the rest of the file, until we find a `StartData' */
buff_len = 256;
for (;;)
{
FT_Byte *p, *limit = buffer + 256;
FT_ULong top_position;
/* fill input buffer */
buff_len -= 256;
if ( buff_len > 0 )
FT_MEM_MOVE( buffer, limit, buff_len );
p = buffer + buff_len;
if ( FT_STREAM_READ( p, 256 + 10 - buff_len ) )
goto Exit;
top_position = FT_STREAM_POS() - buff_len;
buff_len = 256 + 10;
/* look for `StartData' */
for ( p = buffer; p < limit; p++ )
{
if ( p[0] == 'S' && ft_strncmp( (char*)p, "StartData", 9 ) == 0 )
{
/* save offset of binary data after `StartData' */
offset = (FT_ULong)( top_position - ( limit - p ) + 10 );
goto Found;
}
}
}
Found:
/* we have found the start of the binary data. We will now */
/* rewind and extract the frame of corresponding to the Postscript */
/* section */
ps_len = offset - base_offset;
if ( FT_STREAM_SEEK( base_offset ) ||
FT_FRAME_EXTRACT( ps_len, parser->postscript ) )
goto Exit;
parser->data_offset = offset;
parser->postscript_len = ps_len;
parser->root.base = parser->postscript;
parser->root.cursor = parser->postscript;
parser->root.limit = parser->root.cursor + ps_len;
parser->num_dict = -1;
Exit:
return error;
}
开发者ID:SOLARIC，项目名称:world-opponent-network，代码行数:86，代码来源:cidparse.c
示例16: T1_New_Parser
T1_New_Parser( T1_Parser parser,
FT_Stream stream,
FT_Memory memory,
PSAux_Service psaux )
{
FT_Error error;
FT_UShort tag;
FT_ULong size;
psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory );
parser->stream = stream;
parser->base_len = 0;
parser->base_dict = 0;
parser->private_len = 0;
parser->private_dict = 0;
parser->in_pfb = 0;
parser->in_memory = 0;
parser->single_block = 0;
/* check the header format */
error = check_type1_format( stream, "%!PS-AdobeFont", 14 );
if ( error )
{
if ( FT_ERR_NEQ( error, Unknown_File_Format ) )
goto Exit;
error = check_type1_format( stream, "%!FontType", 10 );
if ( error )
{
FT_TRACE2(( " not a Type 1 font\n" ));
goto Exit;
}
}
/******************************************************************/
/* */
/* Here a short summary of what is going on: */
/* */
/* When creating a new Type 1 parser, we try to locate and load */
/* the base dictionary if this is possible (i.e., for PFB */
/* files). Otherwise, we load the whole font into memory. */
/* */
/* When `loading' the base dictionary, we only setup pointers */
/* in the case of a memory-based stream. Otherwise, we */
/* allocate and load the base dictionary in it. */
/* */
/* parser->in_pfb is set if we are in a binary (`.pfb') font. */
/* parser->in_memory is set if we have a memory stream. */
/* */
/* try to compute the size of the base dictionary; */
/* look for a Postscript binary file tag, i.e., 0x8001 */
if ( FT_STREAM_SEEK( 0L ) )
goto Exit;
error = read_pfb_tag( stream, &tag, &size );
if ( error )
goto Exit;
if ( tag != 0x8001U )
{
/* assume that this is a PFA file for now; an error will */
/* be produced later when more things are checked */
if ( FT_STREAM_SEEK( 0L ) )
goto Exit;
size = stream->size;
}
else
parser->in_pfb = 1;
/* now, try to load `size' bytes of the `base' dictionary we */
/* found previously */
/* if it is a memory-based resource, set up pointers */
if ( !stream->read )
{
parser->base_dict = (FT_Byte*)stream->base + stream->pos;
parser->base_len = size;
parser->in_memory = 1;
/* check that the `size' field is valid */
if ( FT_STREAM_SKIP( size ) )
goto Exit;
}
else
{
/* read segment in memory -- this is clumsy, but so does the format */
if ( FT_ALLOC( parser->base_dict, size ) ||
FT_STREAM_READ( parser->base_dict, size ) )
goto Exit;
parser->base_len = size;
}
parser->root.base = parser->base_dict;
parser->root.cursor = parser->base_dict;
parser->root.limit = parser->root.cursor + parser->base_len;
Exit:
//.........这里部分代码省略.........
开发者ID:PrinttingGroup，项目名称:SumatraPDF_SpecialPrint，代码行数:101，代码来源:t1parse.c
示例17: get_sfnt_postscript_name
static const char*
get_sfnt_postscript_name( TT_Face face )
{
FT_Int n, found_win, found_apple;
const char* result = NULL;
/* shouldn't happen, but just in case to avoid memory leaks */
if ( face->root.internal->postscript_name )
return face->root.internal->postscript_name;
/* scan the name table to see whether we have a Postscript name here, */
/* either in Macintosh or Windows platform encodings */
found_win = -1;
found_apple = -1;
for ( n = 0; n < face->num_names; n++ )
{
TT_NameEntryRec* name = face->name_table.names + n;
if ( name->nameID == 6 && name->stringLength > 0 )
{
if ( name->platformID == 3 &&
name->encodingID == 1 &&
name->languageID == 0x409 )
found_win = n;
if ( name->platformID == 1 &&
name->encodingID
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