diff options
Diffstat (limited to 'nx-X11/extras/freetype2/src/psaux/psobjs.c')
| -rw-r--r-- | nx-X11/extras/freetype2/src/psaux/psobjs.c | 1784 |
1 files changed, 0 insertions, 1784 deletions
diff --git a/nx-X11/extras/freetype2/src/psaux/psobjs.c b/nx-X11/extras/freetype2/src/psaux/psobjs.c deleted file mode 100644 index d02986cee..000000000 --- a/nx-X11/extras/freetype2/src/psaux/psobjs.c +++ /dev/null @@ -1,1784 +0,0 @@ -/***************************************************************************/ -/* */ -/* psobjs.c */ -/* */ -/* Auxiliary functions for PostScript fonts (body). */ -/* */ -/* Copyright 1996-2001, 2002, 2003, 2004 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_POSTSCRIPT_AUX_H -#include FT_INTERNAL_DEBUG_H - -#include "psobjs.h" - -#include "psauxerr.h" - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** PS_TABLE *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - /*************************************************************************/ - /* */ - /* <Function> */ - /* ps_table_new */ - /* */ - /* <Description> */ - /* Initializes a PS_Table. */ - /* */ - /* <InOut> */ - /* table :: The address of the target table. */ - /* */ - /* <Input> */ - /* count :: The table size = the maximum number of elements. */ - /* */ - /* memory :: The memory object to use for all subsequent */ - /* reallocations. */ - /* */ - /* <Return> */ - /* FreeType error code. 0 means success. */ - /* */ - FT_LOCAL_DEF( FT_Error ) - ps_table_new( PS_Table table, - FT_Int count, - FT_Memory memory ) - { - FT_Error error; - - - table->memory = memory; - if ( FT_NEW_ARRAY( table->elements, count ) || - FT_NEW_ARRAY( table->lengths, count ) ) - goto Exit; - - table->max_elems = count; - table->init = 0xDEADBEEFUL; - table->num_elems = 0; - table->block = 0; - table->capacity = 0; - table->cursor = 0; - - *(PS_Table_FuncsRec*)&table->funcs = ps_table_funcs; - - Exit: - if ( error ) - FT_FREE( table->elements ); - - return error; - } - - - static void - shift_elements( PS_Table table, - FT_Byte* old_base ) - { - FT_Long delta = (FT_Long)( table->block - old_base ); - FT_Byte** offset = table->elements; - FT_Byte** limit = offset + table->max_elems; - - - for ( ; offset < limit; offset++ ) - { - if ( offset[0] ) - offset[0] += delta; - } - } - - - static FT_Error - reallocate_t1_table( PS_Table table, - FT_Long new_size ) - { - FT_Memory memory = table->memory; - FT_Byte* old_base = table->block; - FT_Error error; - - - /* allocate new base block */ - if ( FT_ALLOC( table->block, new_size ) ) - { - table->block = old_base; - return error; - } - - /* copy elements and shift offsets */ - if (old_base ) - { - FT_MEM_COPY( table->block, old_base, table->capacity ); - shift_elements( table, old_base ); - FT_FREE( old_base ); - } - - table->capacity = new_size; - - return PSaux_Err_Ok; - } - - - /*************************************************************************/ - /* */ - /* <Function> */ - /* ps_table_add */ - /* */ - /* <Description> */ - /* Adds an object to a PS_Table, possibly growing its memory block. */ - /* */ - /* <InOut> */ - /* table :: The target table. */ - /* */ - /* <Input> */ - /* idx :: The index of the object in the table. */ - /* */ - /* object :: The address of the object to copy in memory. */ - /* */ - /* length :: The length in bytes of the source object. */ - /* */ - /* <Return> */ - /* FreeType error code. 0 means success. An error is returned if a */ - /* reallocation fails. */ - /* */ - FT_LOCAL_DEF( FT_Error ) - ps_table_add( PS_Table table, - FT_Int idx, - void* object, - FT_PtrDist length ) - { - if ( idx < 0 || idx > table->max_elems ) - { - FT_ERROR(( "ps_table_add: invalid index\n" )); - return PSaux_Err_Invalid_Argument; - } - - /* grow the base block if needed */ - if ( table->cursor + length > table->capacity ) - { - FT_Error error; - FT_Offset new_size = table->capacity; - FT_Long in_offset; - - - in_offset = (FT_Long)((FT_Byte*)object - table->block); - if ( (FT_ULong)in_offset >= table->capacity ) - in_offset = -1; - - while ( new_size < table->cursor + length ) - { - /* increase size by 25% and round up to the nearest multiple - of 1024 */ - new_size += ( new_size >> 2 ) + 1; - new_size = FT_PAD_CEIL( new_size, 1024 ); - } - - error = reallocate_t1_table( table, new_size ); - if ( error ) - return error; - - if ( in_offset >= 0 ) - object = table->block + in_offset; - } - - /* add the object to the base block and adjust offset */ - table->elements[idx] = table->block + table->cursor; - table->lengths [idx] = length; - FT_MEM_COPY( table->block + table->cursor, object, length ); - - table->cursor += length; - return PSaux_Err_Ok; - } - - - /*************************************************************************/ - /* */ - /* <Function> */ - /* ps_table_done */ - /* */ - /* <Description> */ - /* Finalizes a PS_TableRec (i.e., reallocate it to its current */ - /* cursor). */ - /* */ - /* <InOut> */ - /* table :: The target table. */ - /* */ - /* <Note> */ - /* This function does NOT release the heap's memory block. It is up */ - /* to the caller to clean it, or reference it in its own structures. */ - /* */ - FT_LOCAL_DEF( void ) - ps_table_done( PS_Table table ) - { - FT_Memory memory = table->memory; - FT_Error error; - FT_Byte* old_base = table->block; - - - /* should never fail, because rec.cursor <= rec.size */ - if ( !old_base ) - return; - - if ( FT_ALLOC( table->block, table->cursor ) ) - return; - FT_MEM_COPY( table->block, old_base, table->cursor ); - shift_elements( table, old_base ); - - table->capacity = table->cursor; - FT_FREE( old_base ); - - FT_UNUSED( error ); - } - - - FT_LOCAL_DEF( void ) - ps_table_release( PS_Table table ) - { - FT_Memory memory = table->memory; - - - if ( (FT_ULong)table->init == 0xDEADBEEFUL ) - { - FT_FREE( table->block ); - FT_FREE( table->elements ); - FT_FREE( table->lengths ); - table->init = 0; - } - } - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** T1 PARSER *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - /* In the PostScript Language Reference Manual (PLRM) the following */ - /* characters are called `whitespace characters'. */ -#define IS_T1_WHITESPACE( c ) ( (c) == ' ' || (c) == '\t' ) -#define IS_T1_LINESPACE( c ) ( (c) == '\r' || (c) == '\n' || (c) == '\f' ) -#define IS_T1_NULLSPACE( c ) ( (c) == '\0' ) - - /* According to the PLRM all whitespace characters are equivalent, */ - /* except in comments and strings. */ -#define IS_T1_SPACE( c ) ( IS_T1_WHITESPACE( c ) || \ - IS_T1_LINESPACE( c ) || \ - IS_T1_NULLSPACE( c ) ) - - - /* The following array is used by various functions to quickly convert */ - /* digits (both decimal and non-decimal) into numbers. */ - -#if 'A' == 65 - /* ASCII */ - - static const char ft_char_table[128] = - { - /* 0x00 */ - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, - -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, - 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, - -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, - 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, - }; - - /* no character >= 0x80 can represent a valid number */ -#define OP >= - -#endif /* 'A' == 65 */ - -#if 'A' == 193 - /* EBCDIC */ - - static const char ft_char_table[128] = - { - /* 0x80 */ - -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, -1, -1, -1, -1, -1, -1, - -1, 19, 20, 21, 22, 23, 24, 25, 26, 27, -1, -1, -1, -1, -1, -1, - -1, -1, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, -1, -1, -1, -1, -1, -1, - -1, 19, 20, 21, 22, 23, 24, 25, 26, 27, -1, -1, -1, -1, -1, -1, - -1, -1, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1, -1, - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, - } - - /* no character < 0x80 can represent a valid number */ -#define OP < - -#endif /* 'A' == 193 */ - - - /* first character must be already part of the comment */ - - static void - skip_comment( FT_Byte* *acur, - FT_Byte* limit ) - { - FT_Byte* cur = *acur; - - - while ( cur < limit ) - { - if ( IS_T1_LINESPACE( *cur ) ) - break; - cur++; - } - - *acur = cur; - } - - - static void - skip_spaces( FT_Byte* *acur, - FT_Byte* limit ) - { - FT_Byte* cur = *acur; - - - while ( cur < limit ) - { - if ( !IS_T1_SPACE( *cur ) ) - { - if ( *cur == '%' ) - /* According to the PLRM, a comment is equal to a space. */ - skip_comment( &cur, limit ); - else - break; - } - cur++; - } - - *acur = cur; - } - - - /* first character must be `(' */ - - static void - skip_literal_string( FT_Byte* *acur, - FT_Byte* limit ) - { - FT_Byte* cur = *acur; - FT_Int embed = 0; - - - while ( cur < limit ) - { - if ( *cur == '\\' ) - cur++; - else if ( *cur == '(' ) - embed++; - else if ( *cur == ')' ) - { - embed--; - if ( embed == 0 ) - { - cur++; - break; - } - } - cur++; - } - - *acur = cur; - } - - - /* first character must be `<' */ - - static void - skip_string( PS_Parser parser ) - { - FT_Byte* cur = parser->cursor; - FT_Byte* limit = parser->limit; - - - while ( ++cur < limit ) - { - int d; - - - /* All whitespace characters are ignored. */ - skip_spaces( &cur, limit ); - if ( cur >= limit ) - break; - - if ( *cur OP 0x80 ) - break; - - d = ft_char_table[*cur & 0x7F]; - if ( d < 0 || d >= 16 ) - break; - } - - if ( cur < limit && *cur != '>' ) - parser->error = PSaux_Err_Invalid_File_Format; - else - cur++; - - parser->cursor = cur; - } - - - /***********************************************************************/ - /* */ - /* All exported parsing routines handle leading whitespace and stop at */ - /* the first character which isn't part of the just handled token. */ - /* */ - /***********************************************************************/ - - - FT_LOCAL_DEF( void ) - ps_parser_skip_PS_token( PS_Parser parser ) - { - /* Note: PostScript allows any non-delimiting, non-whitespace */ - /* character in a name (PS Ref Manual, 3rd ed, p31). */ - /* PostScript delimiters are (, ), <, >, [, ], {, }, /, and %. */ - - FT_Byte* cur = parser->cursor; - FT_Byte* limit = parser->limit; - - - skip_spaces( &cur, limit ); /* this also skips comments */ - if ( cur >= limit ) - goto Exit; - - /* self-delimiting, single-character tokens */ - if ( *cur == '[' || *cur == ']' || - *cur == '{' || *cur == '}' ) - { - cur++; - goto Exit; - } - - if ( *cur == '(' ) /* (...) */ - { - skip_literal_string( &cur, limit ); - goto Exit; - } - - if ( *cur == '<' ) /* <...> */ - { - if ( cur + 1 < limit && *(cur + 1) == '<' ) /* << */ - { - cur++; - cur++; - goto Exit; - } - parser->cursor = cur; - skip_string( parser ); - return; - } - - if ( *cur == '>' ) - { - cur++; - if ( cur >= limit || *cur != '>' ) /* >> */ - { - parser->error = PSaux_Err_Invalid_File_Format; - goto Exit; - } - cur++; - goto Exit; - } - - if ( *cur == '/' ) - cur++; - - /* anything else */ - while ( cur < limit ) - { - if ( IS_T1_SPACE( *cur ) || - *cur == '(' || - *cur == '/' || - *cur == '%' || - *cur == '[' || *cur == ']' || - *cur == '{' || *cur == '}' || - *cur == '<' || *cur == '>' ) - break; - - if ( *cur == ')' ) - { - parser->error = PSaux_Err_Invalid_File_Format; - goto Exit; - } - - cur++; - } - - Exit: - parser->cursor = cur; - } - - - FT_LOCAL_DEF( void ) - ps_parser_skip_spaces( PS_Parser parser ) - { - skip_spaces( &parser->cursor, parser->limit ); - } - - - /* `token' here means either something between balanced delimiters */ - /* or the next token; the delimiters are not removed. */ - - FT_LOCAL_DEF( void ) - ps_parser_to_token( PS_Parser parser, - T1_Token token ) - { - FT_Byte* cur; - FT_Byte* limit; - FT_Byte starter, ender; - FT_Int embed; - - - token->type = T1_TOKEN_TYPE_NONE; - token->start = 0; - token->limit = 0; - - /* first of all, skip leading whitespace */ - ps_parser_skip_spaces( parser ); - - cur = parser->cursor; - limit = parser->limit; - - if ( cur >= limit ) - return; - - switch ( *cur ) - { - /************* check for literal string *****************/ - case '(': - token->type = T1_TOKEN_TYPE_STRING; - token->start = cur; - skip_literal_string( &cur, limit ); - if ( cur < limit ) - token->limit = cur; - break; - - /************* check for programs/array *****************/ - case '{': - token->type = T1_TOKEN_TYPE_ARRAY; - ender = '}'; - goto Lookup_Ender; - - /************* check for table/array ********************/ - case '[': - token->type = T1_TOKEN_TYPE_ARRAY; - ender = ']'; - /* fall through */ - - Lookup_Ender: - embed = 1; - starter = *cur; - token->start = cur++; - - /* we need this to catch `[ ]' */ - parser->cursor = cur; - ps_parser_skip_spaces( parser ); - cur = parser->cursor; - - while ( cur < limit && !parser->error ) - { - if ( *cur == starter ) - embed++; - else if ( *cur == ender ) - { - embed--; - if ( embed <= 0 ) - { - token->limit = ++cur; - break; - } - } - - parser->cursor = cur; - ps_parser_skip_PS_token( parser ); - /* we need this to catch `[XXX ]' */ - ps_parser_skip_spaces ( parser ); - cur = parser->cursor; - } - break; - - /* ************ otherwise, it is any token **************/ - default: - token->start = cur; - token->type = T1_TOKEN_TYPE_ANY; - ps_parser_skip_PS_token( parser ); - cur = parser->cursor; - if ( !parser->error ) - token->limit = cur; - } - - if ( !token->limit ) - { - token->start = 0; - token->type = T1_TOKEN_TYPE_NONE; - } - - parser->cursor = cur; - } - - - FT_LOCAL_DEF( void ) - ps_parser_to_token_array( PS_Parser parser, - T1_Token tokens, - FT_UInt max_tokens, - FT_Int* pnum_tokens ) - { - T1_TokenRec master; - - - *pnum_tokens = -1; - - /* this also handles leading whitespace */ - ps_parser_to_token( parser, &master ); - - if ( master.type == T1_TOKEN_TYPE_ARRAY ) - { - FT_Byte* old_cursor = parser->cursor; - FT_Byte* old_limit = parser->limit; - T1_Token cur = tokens; - T1_Token limit = cur + max_tokens; - - - /* don't include outermost delimiters */ - parser->cursor = master.start + 1; - parser->limit = master.limit - 1; - - while ( parser->cursor < parser->limit ) - { - T1_TokenRec token; - - - ps_parser_to_token( parser, &token ); - if ( !token.type ) - break; - - if ( cur < limit ) - *cur = token; - - cur++; - } - - *pnum_tokens = (FT_Int)( cur - tokens ); - - parser->cursor = old_cursor; - parser->limit = old_limit; - } - } - - - /* first character must be already part of the number */ - - static FT_Long - ps_radix( FT_Long radixBase, - FT_Byte* *acur, - FT_Byte* limit ) - { - FT_Long result = 0; - FT_Byte* cur = *acur; - - - if ( radixBase < 2 || radixBase > 36 ) - return 0; - - while ( cur < limit ) - { - int d; - - - if ( *cur OP 0x80 ) - break; - - d = ft_char_table[*cur & 0x7F]; - if ( d < 0 || d >= radixBase ) - break; - - result = result * radixBase + d; - - cur++; - } - - *acur = cur; - - return result; - } - - - /* first character must be already part of the number */ - - static FT_Long - ps_toint( FT_Byte* *acur, - FT_Byte* limit ) - { - FT_Long result = 0; - FT_Byte* cur = *acur; - FT_Byte c; - - - if ( cur >= limit ) - goto Exit; - - c = *cur; - if ( c == '-' ) - cur++; - - while ( cur < limit ) - { - int d; - - - if ( *cur == '#' ) - { - cur++; - result = ps_radix( result, &cur, limit ); - break; - } - - if ( *cur OP 0x80 ) - break; - - d = ft_char_table[*cur & 0x7F]; - if ( d < 0 || d >= 10 ) - break; - result = result * 10 + d; - - cur++; - }; - - if ( c == '-' ) - result = -result; - - Exit: - *acur = cur; - return result; - } - - - /* first character must be `<' if `delimiters' is non-zero */ - - static FT_Error - ps_tobytes( FT_Byte* *acur, - FT_Byte* limit, - FT_Long max_bytes, - FT_Byte* bytes, - FT_Long* pnum_bytes, - FT_Bool delimiters ) - { - FT_Error error = PSaux_Err_Ok; - - FT_Byte* cur = *acur; - FT_Long n = 0; - - - if ( cur >= limit ) - goto Exit; - - if ( delimiters ) - { - if ( *cur != '<' ) - { - error = PSaux_Err_Invalid_File_Format; - goto Exit; - } - - cur++; - } - - max_bytes = max_bytes * 2; - - for ( n = 0; cur < limit; n++, cur++ ) - { - int d; - - - if ( n >= max_bytes ) - /* buffer is full */ - goto Exit; - - /* All whitespace characters are ignored. */ - skip_spaces( &cur, limit ); - if ( cur >= limit ) - break; - - if ( *cur OP 0x80 ) - break; - - d = ft_char_table[*cur & 0x7F]; - if ( d < 0 || d >= 16 ) - break; - - /* <f> == <f0> != <0f> */ - bytes[n / 2] = (FT_Byte)( ( n % 2 ) ? bytes[n / 2] + d - : d * 16 ); - } - - if ( delimiters ) - { - if ( cur < limit && *cur != '>' ) - { - error = PSaux_Err_Invalid_File_Format; - goto Exit; - } - - cur++; - } - - *acur = cur; - - Exit: - *pnum_bytes = ( n + 1 ) / 2; - - return error; - } - - - /* first character must be already part of the number */ - - static FT_Long - ps_tofixed( FT_Byte* *acur, - FT_Byte* limit, - FT_Long power_ten ) - { - FT_Byte* cur = *acur; - FT_Long num, divider, result; - FT_Int sign = 0; - - - if ( cur >= limit ) - return 0; - - /* first of all, check the sign */ - if ( *cur == '-' && cur + 1 < limit ) - { - sign = 1; - cur++; - } - - /* then, read the integer part, if any */ - if ( *cur != '.' ) - result = ps_toint( &cur, limit ) << 16; - else - result = 0; - - num = 0; - divider = 1; - - if ( cur >= limit ) - goto Exit; - - /* read decimal part, if any */ - if ( *cur == '.' && cur + 1 < limit ) - { - cur++; - - for (;;) - { - int d; - - - if ( *cur OP 0x80 ) - break; - - d = ft_char_table[*cur & 0x7F]; - if ( d < 0 || d >= 10 ) - break; - - if ( divider < 10000000L ) - { - num = num * 10 + d; - divider *= 10; - } - - cur++; - if ( cur >= limit ) - break; - } - } - - /* read exponent, if any */ - if ( cur + 1 < limit && ( *cur == 'e' || *cur == 'E' ) ) - { - cur++; - power_ten += ps_toint( &cur, limit ); - } - - Exit: - /* raise to power of ten if needed */ - while ( power_ten > 0 ) - { - result = result * 10; - num = num * 10; - power_ten--; - } - - while ( power_ten < 0 ) - { - result = result / 10; - divider = divider * 10; - power_ten++; - } - - if ( num ) - result += FT_DivFix( num, divider ); - - if ( sign ) - result = -result; - - *acur = cur; - return result; - } - - - /* first character must be a delimiter or a part of a number */ - - static FT_Int - ps_tocoordarray( FT_Byte* *acur, - FT_Byte* limit, - FT_Int max_coords, - FT_Short* coords ) - { - FT_Byte* cur = *acur; - FT_Int count = 0; - FT_Byte c, ender; - - - if ( cur >= limit ) - goto Exit; - - /* check for the beginning of an array; otherwise, only one number */ - /* will be read */ - c = *cur; - ender = 0; - - if ( c == '[' ) - ender = ']'; - - if ( c == '{' ) - ender = '}'; - - if ( ender ) - cur++; - - /* now, read the coordinates */ - while ( cur < limit ) - { - /* skip whitespace in front of data */ - skip_spaces( &cur, limit ); - if ( cur >= limit ) - goto Exit; - - if ( count >= max_coords ) - break; - - if ( c == ender ) - { - cur++; - break; - } - - coords[count] = (FT_Short)( ps_tofixed( &cur, limit, 0 ) >> 16 ); - count++; - - if ( !ender ) - break; - } - - Exit: - *acur = cur; - return count; - } - - - /* first character must be a delimiter or a part of a number */ - - static FT_Int - ps_tofixedarray( FT_Byte* *acur, - FT_Byte* limit, - FT_Int max_values, - FT_Fixed* values, - FT_Int power_ten ) - { - FT_Byte* cur = *acur; - FT_Int count = 0; - FT_Byte c, ender; - - - if ( cur >= limit ) - goto Exit; - - /* Check for the beginning of an array. Otherwise, only one number */ - /* will be read. */ - c = *cur; - ender = 0; - - if ( c == '[' ) - ender = ']'; - - if ( c == '{' ) - ender = '}'; - - if ( ender ) - cur++; - - /* now, read the values */ - while ( cur < limit ) - { - /* skip whitespace in front of data */ - skip_spaces( &cur, limit ); - if ( cur >= limit ) - goto Exit; - - if ( count >= max_values ) - break; - - if ( c == ender ) - { - cur++; - break; - } - - values[count] = ps_tofixed( &cur, limit, power_ten ); - count++; - - if ( !ender ) - break; - } - - Exit: - *acur = cur; - return count; - } - - -#if 0 - - static FT_String* - ps_tostring( FT_Byte** cursor, - FT_Byte* limit, - FT_Memory memory ) - { - FT_Byte* cur = *cursor; - FT_PtrDist len = 0; - FT_Int count; - FT_String* result; - FT_Error error; - - - /* XXX: some stupid fonts have a `Notice' or `Copyright' string */ - /* that simply doesn't begin with an opening parenthesis, even */ - /* though they have a closing one! E.g. "amuncial.pfb" */ - /* */ - /* We must deal with these ill-fated cases there. Note that */ - /* these fonts didn't work with the old Type 1 driver as the */ - /* notice/copyright was not recognized as a valid string token */ - /* and made the old token parser commit errors. */ - - while ( cur < limit && ( *cur == ' ' || *cur == '\t' ) ) - cur++; - if ( cur + 1 >= limit ) - return 0; - - if ( *cur == '(' ) - cur++; /* skip the opening parenthesis, if there is one */ - - *cursor = cur; - count = 0; - - /* then, count its length */ - for ( ; cur < limit; cur++ ) - { - if ( *cur == '(' ) - count++; - - else if ( *cur == ')' ) - { - count--; - if ( count < 0 ) - break; - } - } - - len = cur - *cursor; - if ( cur >= limit || FT_ALLOC( result, len + 1 ) ) - return 0; - - /* now copy the string */ - FT_MEM_COPY( result, *cursor, len ); - result[len] = '\0'; - *cursor = cur; - return result; - } - -#endif /* 0 */ - - - static int - ps_tobool( FT_Byte* *acur, - FT_Byte* limit ) - { - FT_Byte* cur = *acur; - FT_Bool result = 0; - - - /* return 1 if we find `true', 0 otherwise */ - if ( cur + 3 < limit && - cur[0] == 't' && - cur[1] == 'r' && - cur[2] == 'u' && - cur[3] == 'e' ) - { - result = 1; - cur += 5; - } - else if ( cur + 4 < limit && - cur[0] == 'f' && - cur[1] == 'a' && - cur[2] == 'l' && - cur[3] == 's' && - cur[4] == 'e' ) - { - result = 0; - cur += 6; - } - - *acur = cur; - return result; - } - - - /* load a simple field (i.e. non-table) into the current list of objects */ - - FT_LOCAL_DEF( FT_Error ) - ps_parser_load_field( PS_Parser parser, - const T1_Field field, - void** objects, - FT_UInt max_objects, - FT_ULong* pflags ) - { - T1_TokenRec token; - FT_Byte* cur; - FT_Byte* limit; - FT_UInt count; - FT_UInt idx; - FT_Error error; - - - /* this also skips leading whitespace */ - ps_parser_to_token( parser, &token ); - if ( !token.type ) - goto Fail; - - count = 1; - idx = 0; - cur = token.start; - limit = token.limit; - - /* we must detect arrays in /FontBBox */ - if ( field->type == T1_FIELD_TYPE_BBOX ) - { - T1_TokenRec token2; - FT_Byte* old_cur = parser->cursor; - FT_Byte* old_limit = parser->limit; - - - /* don't include delimiters */ - parser->cursor = token.start + 1; - parser->limit = token.limit - 1; - - ps_parser_to_token( parser, &token2 ); - parser->cursor = old_cur; - parser->limit = old_limit; - - if ( token2.type == T1_TOKEN_TYPE_ARRAY ) - goto FieldArray; - } - else if ( token.type == T1_TOKEN_TYPE_ARRAY ) - { - FieldArray: - /* if this is an array and we have no blend, an error occurs */ - if ( max_objects == 0 ) - goto Fail; - - count = max_objects; - idx = 1; - - /* don't include delimiters */ - cur++; - limit--; - } - - for ( ; count > 0; count--, idx++ ) - { - FT_Byte* q = (FT_Byte*)objects[idx] + field->offset; - FT_Long val; - FT_String* string; - - - skip_spaces( &cur, limit ); - - switch ( field->type ) - { - case T1_FIELD_TYPE_BOOL: - val = ps_tobool( &cur, limit ); - goto Store_Integer; - - case T1_FIELD_TYPE_FIXED: - val = ps_tofixed( &cur, limit, 0 ); - goto Store_Integer; - - case T1_FIELD_TYPE_FIXED_1000: - val = ps_tofixed( &cur, limit, 3 ); - goto Store_Integer; - - case T1_FIELD_TYPE_INTEGER: - val = ps_toint( &cur, limit ); - /* fall through */ - - Store_Integer: - switch ( field->size ) - { - case (8 / FT_CHAR_BIT): - *(FT_Byte*)q = (FT_Byte)val; - break; - - case (16 / FT_CHAR_BIT): - *(FT_UShort*)q = (FT_UShort)val; - break; - - case (32 / FT_CHAR_BIT): - *(FT_UInt32*)q = (FT_UInt32)val; - break; - - default: /* for 64-bit systems */ - *(FT_Long*)q = val; - } - break; - - case T1_FIELD_TYPE_STRING: - case T1_FIELD_TYPE_KEY: - { - FT_Memory memory = parser->memory; - FT_UInt len = (FT_UInt)( limit - cur ); - - - if ( cur >= limit ) - break; - - if ( field->type == T1_FIELD_TYPE_KEY ) - { - /* don't include leading `/' */ - len--; - cur++; - } - else - { - /* don't include delimiting parentheses */ - cur++; - len -= 2; - } - - if ( FT_ALLOC( string, len + 1 ) ) - goto Exit; - - FT_MEM_COPY( string, cur, len ); - string[len] = 0; - - *(FT_String**)q = string; - } - break; - - case T1_FIELD_TYPE_BBOX: - { - FT_Fixed temp[4]; - FT_BBox* bbox = (FT_BBox*)q; - - - (void)ps_tofixedarray( &token.start, token.limit, 4, temp, 0 ); - - bbox->xMin = FT_RoundFix( temp[0] ); - bbox->yMin = FT_RoundFix( temp[1] ); - bbox->xMax = FT_RoundFix( temp[2] ); - bbox->yMax = FT_RoundFix( temp[3] ); - } - break; - - default: - /* an error occured */ - goto Fail; - } - } - -#if 0 /* obsolete -- keep for reference */ - if ( pflags ) - *pflags |= 1L << field->flag_bit; -#else - FT_UNUSED( pflags ); -#endif - - error = PSaux_Err_Ok; - - Exit: - return error; - - Fail: - error = PSaux_Err_Invalid_File_Format; - goto Exit; - } - - -#define T1_MAX_TABLE_ELEMENTS 32 - - - FT_LOCAL_DEF( FT_Error ) - ps_parser_load_field_table( PS_Parser parser, - const T1_Field field, - void** objects, - FT_UInt max_objects, - FT_ULong* pflags ) - { - T1_TokenRec elements[T1_MAX_TABLE_ELEMENTS]; - T1_Token token; - FT_Int num_elements; - FT_Error error = PSaux_Err_Ok; - FT_Byte* old_cursor; - FT_Byte* old_limit; - T1_FieldRec fieldrec = *(T1_Field)field; - - -#if 1 - fieldrec.type = T1_FIELD_TYPE_INTEGER; - if ( field->type == T1_FIELD_TYPE_FIXED_ARRAY ) - fieldrec.type = T1_FIELD_TYPE_FIXED; -#endif - - ps_parser_to_token_array( parser, elements, - T1_MAX_TABLE_ELEMENTS, &num_elements ); - if ( num_elements < 0 ) - { - error = PSaux_Err_Ignore; - goto Exit; - } - if ( num_elements > T1_MAX_TABLE_ELEMENTS ) - num_elements = T1_MAX_TABLE_ELEMENTS; - - old_cursor = parser->cursor; - old_limit = parser->limit; - - /* we store the elements count */ - *(FT_Byte*)( (FT_Byte*)objects[0] + field->count_offset ) = - (FT_Byte)num_elements; - - /* we now load each element, adjusting the field.offset on each one */ - token = elements; - for ( ; num_elements > 0; num_elements--, token++ ) - { - parser->cursor = token->start; - parser->limit = token->limit; - ps_parser_load_field( parser, &fieldrec, objects, max_objects, 0 ); - fieldrec.offset += fieldrec.size; - } - -#if 0 /* obsolete -- keep for reference */ - if ( pflags ) - *pflags |= 1L << field->flag_bit; -#else - FT_UNUSED( pflags ); -#endif - - parser->cursor = old_cursor; - parser->limit = old_limit; - - Exit: - return error; - } - - - FT_LOCAL_DEF( FT_Long ) - ps_parser_to_int( PS_Parser parser ) - { - ps_parser_skip_spaces( parser ); - return ps_toint( &parser->cursor, parser->limit ); - } - - - FT_LOCAL_DEF( FT_Error ) - ps_parser_to_bytes( PS_Parser parser, - FT_Byte* bytes, - FT_Long max_bytes, - FT_Long* pnum_bytes, - FT_Bool delimiters ) - { - ps_parser_skip_spaces( parser ); - return ps_tobytes( &parser->cursor, - parser->limit, - max_bytes, - bytes, - pnum_bytes, - delimiters ); - } - - - FT_LOCAL_DEF( FT_Fixed ) - ps_parser_to_fixed( PS_Parser parser, - FT_Int power_ten ) - { - ps_parser_skip_spaces( parser ); - return ps_tofixed( &parser->cursor, parser->limit, power_ten ); - } - - - FT_LOCAL_DEF( FT_Int ) - ps_parser_to_coord_array( PS_Parser parser, - FT_Int max_coords, - FT_Short* coords ) - { - ps_parser_skip_spaces( parser ); - return ps_tocoordarray( &parser->cursor, parser->limit, - max_coords, coords ); - } - - - FT_LOCAL_DEF( FT_Int ) - ps_parser_to_fixed_array( PS_Parser parser, - FT_Int max_values, - FT_Fixed* values, - FT_Int power_ten ) - { - ps_parser_skip_spaces( parser ); - return ps_tofixedarray( &parser->cursor, parser->limit, - max_values, values, power_ten ); - } - - -#if 0 - - FT_LOCAL_DEF( FT_String* ) - T1_ToString( PS_Parser parser ) - { - return ps_tostring( &parser->cursor, parser->limit, parser->memory ); - } - - - FT_LOCAL_DEF( FT_Bool ) - T1_ToBool( PS_Parser parser ) - { - return ps_tobool( &parser->cursor, parser->limit ); - } - -#endif /* 0 */ - - - FT_LOCAL_DEF( void ) - ps_parser_init( PS_Parser parser, - FT_Byte* base, - FT_Byte* limit, - FT_Memory memory ) - { - parser->error = PSaux_Err_Ok; - parser->base = base; - parser->limit = limit; - parser->cursor = base; - parser->memory = memory; - parser->funcs = ps_parser_funcs; - } - - - FT_LOCAL_DEF( void ) - ps_parser_done( PS_Parser parser ) - { - FT_UNUSED( parser ); - } - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** T1 BUILDER *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - /*************************************************************************/ - /* */ - /* <Function> */ - /* t1_builder_init */ - /* */ - /* <Description> */ - /* Initializes a given glyph builder. */ - /* */ - /* <InOut> */ - /* builder :: A pointer to the glyph builder to initialize. */ - /* */ - /* <Input> */ - /* face :: The current face object. */ - /* */ - /* size :: The current size object. */ - /* */ - /* glyph :: The current glyph object. */ - /* */ - /* hinting :: Whether hinting should be applied. */ - /* */ - FT_LOCAL_DEF( void ) - t1_builder_init( T1_Builder builder, - FT_Face face, - FT_Size size, - FT_GlyphSlot glyph, - FT_Bool hinting ) - { - builder->parse_state = T1_Parse_Start; - builder->load_points = 1; - - builder->face = face; - builder->glyph = glyph; - builder->memory = face->memory; - - if ( glyph ) - { - FT_GlyphLoader loader = glyph->internal->loader; - - - builder->loader = loader; - builder->base = &loader->base.outline; - builder->current = &loader->current.outline; - FT_GlyphLoader_Rewind( loader ); - - builder->hints_globals = size->internal; - builder->hints_funcs = 0; - - if ( hinting ) - builder->hints_funcs = glyph->internal->glyph_hints; - } - - if ( size ) - { - builder->scale_x = size->metrics.x_scale; - builder->scale_y = size->metrics.y_scale; - } - - builder->pos_x = 0; - builder->pos_y = 0; - - builder->left_bearing.x = 0; - builder->left_bearing.y = 0; - builder->advance.x = 0; - builder->advance.y = 0; - - builder->funcs = t1_builder_funcs; - } - - - /*************************************************************************/ - /* */ - /* <Function> */ - /* t1_builder_done */ - /* */ - /* <Description> */ - /* Finalizes a given glyph builder. Its contents can still be used */ - /* after the call, but the function saves important information */ - /* within the corresponding glyph slot. */ - /* */ - /* <Input> */ - /* builder :: A pointer to the glyph builder to finalize. */ - /* */ - FT_LOCAL_DEF( void ) - t1_builder_done( T1_Builder builder ) - { - FT_GlyphSlot glyph = builder->glyph; - - - if ( glyph ) - glyph->outline = *builder->base; - } - - - /* check that there is enough space for `count' more points */ - FT_LOCAL_DEF( FT_Error ) - t1_builder_check_points( T1_Builder builder, - FT_Int count ) - { - return FT_GlyphLoader_CheckPoints( builder->loader, count, 0 ); - } - - - /* add a new point, do not check space */ - FT_LOCAL_DEF( void ) - t1_builder_add_point( T1_Builder builder, - FT_Pos x, - FT_Pos y, - FT_Byte flag ) - { - FT_Outline* outline = builder->current; - - - if ( builder->load_points ) - { - FT_Vector* point = outline->points + outline->n_points; - FT_Byte* control = (FT_Byte*)outline->tags + outline->n_points; - - - if ( builder->shift ) - { - x >>= 16; - y >>= 16; - } - point->x = x; - point->y = y; - *control = (FT_Byte)( flag ? FT_CURVE_TAG_ON : FT_CURVE_TAG_CUBIC ); - - builder->last = *point; - } - outline->n_points++; - } - - - /* check space for a new on-curve point, then add it */ - FT_LOCAL_DEF( FT_Error ) - t1_builder_add_point1( T1_Builder builder, - FT_Pos x, - FT_Pos y ) - { - FT_Error error; - - - error = t1_builder_check_points( builder, 1 ); - if ( !error ) - t1_builder_add_point( builder, x, y, 1 ); - - return error; - } - - - /* check space for a new contour, then add it */ - FT_LOCAL_DEF( FT_Error ) - t1_builder_add_contour( T1_Builder builder ) - { - FT_Outline* outline = builder->current; - FT_Error error; - - - if ( !builder->load_points ) - { - outline->n_contours++; - return PSaux_Err_Ok; - } - - error = FT_GlyphLoader_CheckPoints( builder->loader, 0, 1 ); - if ( !error ) - { - if ( outline->n_contours > 0 ) - outline->contours[outline->n_contours - 1] = - (short)( outline->n_points - 1 ); - - outline->n_contours++; - } - - return error; - } - - - /* if a path was begun, add its first on-curve point */ - FT_LOCAL_DEF( FT_Error ) - t1_builder_start_point( T1_Builder builder, - FT_Pos x, - FT_Pos y ) - { - FT_Error error = PSaux_Err_Invalid_File_Format; - - - /* test whether we are building a new contour */ - - if ( builder->parse_state == T1_Parse_Have_Path ) - error = PSaux_Err_Ok; - else if ( builder->parse_state == T1_Parse_Have_Moveto ) - { - builder->parse_state = T1_Parse_Have_Path; - error = t1_builder_add_contour( builder ); - if ( !error ) - error = t1_builder_add_point1( builder, x, y ); - } - - return error; - } - - - /* close the current contour */ - FT_LOCAL_DEF( void ) - t1_builder_close_contour( T1_Builder builder ) - { - FT_Outline* outline = builder->current; - - - /* XXXX: We must not include the last point in the path if it */ - /* is located on the first point. */ - if ( outline->n_points > 1 ) - { - FT_Int first = 0; - FT_Vector* p1 = outline->points + first; - FT_Vector* p2 = outline->points + outline->n_points - 1; - FT_Byte* control = (FT_Byte*)outline->tags + outline->n_points - 1; - - - if ( outline->n_contours > 1 ) - { - first = outline->contours[outline->n_contours - 2] + 1; - p1 = outline->points + first; - } - - /* `delete' last point only if it coincides with the first */ - /* point and it is not a control point (which can happen). */ - if ( p1->x == p2->x && p1->y == p2->y ) - if ( *control == FT_CURVE_TAG_ON ) - outline->n_points--; - } - - if ( outline->n_contours > 0 ) - outline->contours[outline->n_contours - 1] = - (short)( outline->n_points - 1 ); - } - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** OTHER *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - FT_LOCAL_DEF( void ) - t1_decrypt( FT_Byte* buffer, - FT_Offset length, - FT_UShort seed ) - { - while ( length > 0 ) - { - FT_Byte plain; - - - plain = (FT_Byte)( *buffer ^ ( seed >> 8 ) ); - seed = (FT_UShort)( ( *buffer + seed ) * 52845U + 22719 ); - *buffer++ = plain; - length--; - } - } - - -/* END */ |