diff options
Diffstat (limited to 'cut-n-paste-code/freetype/cidparse.c')
| -rw-r--r-- | cut-n-paste-code/freetype/cidparse.c | 1045 |
1 files changed, 0 insertions, 1045 deletions
diff --git a/cut-n-paste-code/freetype/cidparse.c b/cut-n-paste-code/freetype/cidparse.c deleted file mode 100644 index 6bcc087c6..000000000 --- a/cut-n-paste-code/freetype/cidparse.c +++ /dev/null @@ -1,1045 +0,0 @@ -/***************************************************************************/ -/* */ -/* cidparse.c */ -/* */ -/* CID-keyed Type1 parser (body). */ -/* */ -/* Copyright 1996-2000 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. */ -/* */ -/***************************************************************************/ - - -#ifdef FT_FLAT_COMPILE - -#include "ftdebug.h" -#include "ftcalc.h" -#include "ftobjs.h" -#include "ftstream.h" -#include "t1errors.h" - - -#else - -#include <freetype/internal/ftdebug.h> -#include <freetype/internal/ftcalc.h> -#include <freetype/internal/ftobjs.h> -#include <freetype/internal/ftstream.h> -#include <freetype/internal/t1errors.h> - - -#endif - -#ifdef FT_FLAT_COMPILE - -#include "cidparse.h" - -#else - -#ifdef FT_FLAT_COMPILE - -#include "cidparse.h" - -#else - -#include <cid/cidparse.h> - -#endif - -#endif - - -#include <string.h> /* for strncmp() */ - - - /*************************************************************************/ - /* */ - /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ - /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ - /* messages during execution. */ - /* */ -#undef FT_COMPONENT -#define FT_COMPONENT trace_cidparse - - -#if 0 - - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** IMPLEMENTATION OF CID_TABLE OBJECT *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - - - /*************************************************************************/ - /* */ - /* <Function> */ - /* CID_New_Table */ - /* */ - /* <Description> */ - /* Initializes a CID_Table. */ - /* */ - /* <InOut> */ - /* table :: The address of the target table. */ - /* */ - /* <Input> */ - /* count :: The table size, i.e., the maximal number of elements. */ - /* */ - /* memory :: The memory object to be used for all subsequent */ - /* reallocations. */ - /* */ - /* <Return> */ - /* FreeType error code. 0 means success. */ - /* */ - LOCAL_FUNC - FT_Error CID_New_Table( CID_Table* table, - FT_Int count, - FT_Memory memory ) - { - FT_Error error; - - - table->memory = memory; - if ( ALLOC_ARRAY( table->elements, count, FT_Byte* ) || - ALLOC_ARRAY( table->lengths, count, FT_Byte* ) ) - goto Exit; - - table->max_elems = count; - table->init = 0xDEADBEEFL; - table->num_elems = 0; - table->block = 0; - table->capacity = 0; - table->cursor = 0; - - Exit: - if ( error ) - FREE( table->elements ); - - return error; - } - - - static - void shift_elements( CID_Table* table, - FT_Byte* old_base ) - { - FT_Long delta = table->block - old_base; - FT_Byte** offset = table->elements; - FT_Byte** limit = offset + table->max_elems; - - - if ( delta ) - for ( ; offset < limit; offset++ ) - { - if ( offset[0] ) - offset[0] += delta; - } - } - - - static - FT_Error reallocate_t1_table( CID_Table* table, - FT_Int new_size ) - { - FT_Memory memory = table->memory; - FT_Byte* old_base = table->block; - FT_Error error; - - - /* realloc the base block */ - if ( REALLOC( table->block, table->capacity, new_size ) ) - return error; - - table->capacity = new_size; - - /* shift all offsets when needed */ - if ( old_base ) - shift_elements( table, old_base ); - - return T1_Err_Ok; - } - - - /*************************************************************************/ - /* */ - /* <Function> */ - /* CID_Add_Table */ - /* */ - /* <Description> */ - /* Adds an object to a CID_Table, possibly growing its memory block. */ - /* */ - /* <InOut> */ - /* table :: The target table. */ - /* */ - /* <Input> */ - /* index :: The index of the object in the table. */ - /* */ - /* object :: The address of the object to copy in the memory. */ - /* */ - /* length :: The length in bytes of the source object. */ - /* */ - /* <Return> */ - /* FreeType error code. 0 means success. An error is returned if */ - /* reallocation fails. */ - /* */ - LOCAL_FUNC - FT_Error CID_Add_Table( CID_Table* table, - FT_Int index, - void* object, - FT_Int length ) - { - if ( index < 0 || index > table->max_elems ) - { - FT_ERROR(( "CID_Add_Table: invalid index\n" )); - return T1_Err_Syntax_Error; - } - - /* grow the base block if needed */ - if ( table->cursor + length > table->capacity ) - { - FT_Error error; - FT_Int new_size = table->capacity; - - - while ( new_size < table->cursor + length ) - new_size += 1024; - - error = reallocate_t1_table( table, new_size ); - if ( error ) - return error; - } - - /* add the object to the base block and adjust offset */ - table->elements[index] = table->block + table->cursor; - table->lengths [index] = length; - - MEM_Copy( table->block + table->cursor, object, length ); - - table->cursor += length; - - return T1_Err_Ok; - } - - - /*************************************************************************/ - /* */ - /* <Function> */ - /* CID_Done_Table */ - /* */ - /* <Description> */ - /* Finalizes a CID_Table (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. */ - /* */ - LOCAL_FUNC - void CID_Done_Table( CID_Table* table ) - { - FT_Memory memory = table->memory; - FT_Error error; - FT_Byte* old_base; - - - /* should never fail, as rec.cursor <= rec.size */ - old_base = table->block; - if ( !old_base ) - return; - - (void)REALLOC( table->block, table->capacity, table->cursor ); - table->capacity = table->cursor; - - if ( old_base != table->block ) - shift_elements( table, old_base ); - } - - - LOCAL_FUNC - void CID_Release_Table( CID_Table* table ) - { - FT_Memory memory = table->memory; - - - if ( table->init == 0xDEADBEEFL ) - { - FREE( table->block ); - FREE( table->elements ); - FREE( table->lengths ); - table->init = 0; - } - } - -#endif /* 0 */ - - - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** INPUT STREAM PARSER *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - - -#define IS_CID_WHITESPACE( c ) ( (c) == ' ' || (c) == '\t' ) -#define IS_CID_LINESPACE( c ) ( (c) == '\r' || (c) == '\n' ) - -#define IS_CID_SPACE( c ) ( IS_CID_WHITESPACE( c ) || IS_CID_LINESPACE( c ) ) - - - LOCAL_FUNC - void CID_Skip_Spaces( CID_Parser* parser ) - { - FT_Byte* cur = parser->cursor; - FT_Byte* limit = parser->limit; - - - while ( cur < limit ) - { - FT_Byte c = *cur; - - - if ( !IS_CID_SPACE( c ) ) - break; - cur++; - } - - parser->cursor = cur; - } - - - LOCAL_FUNC - void CID_ToToken( CID_Parser* parser, - CID_Token_Rec* token ) - { - FT_Byte* cur; - FT_Byte* limit; - FT_Byte starter, ender; - FT_Int embed; - - - token->type = t1_token_none; - token->start = 0; - token->limit = 0; - - /* first of all, skip space */ - CID_Skip_Spaces( parser ); - - cur = parser->cursor; - limit = parser->limit; - - if ( cur < limit ) - { - switch ( *cur ) - { - /************* check for strings ***********************/ - case '(': - token->type = t1_token_string; - ender = ')'; - goto Lookup_Ender; - - /************* check for programs/array ****************/ - case '{': - token->type = t1_token_array; - ender = '}'; - goto Lookup_Ender; - - /************* check for table/array ******************/ - case '[': - token->type = t1_token_array; - ender = ']'; - - Lookup_Ender: - embed = 1; - starter = *cur++; - token->start = cur; - - while ( cur < limit ) - { - if ( *cur == starter ) - embed++; - else if ( *cur == ender ) - { - embed--; - if ( embed <= 0 ) - { - token->limit = cur++; - break; - } - } - cur++; - } - break; - - /* **************** otherwise, it is any token **********/ - default: - token->start = cur++; - token->type = t1_token_any; - while ( cur < limit && !IS_CID_SPACE( *cur ) ) - cur++; - - token->limit = cur; - } - - if ( !token->limit ) - { - token->start = 0; - token->type = t1_token_none; - } - - parser->cursor = cur; - } - } - - - LOCAL_FUNC - void CID_ToTokenArray( CID_Parser* parser, - CID_Token_Rec* tokens, - FT_UInt max_tokens, - FT_Int* pnum_tokens ) - { - CID_Token_Rec master; - - - *pnum_tokens = -1; - - CID_ToToken( parser, &master ); - - if ( master.type == t1_token_array ) - { - FT_Byte* old_cursor = parser->cursor; - FT_Byte* old_limit = parser->limit; - CID_Token_Rec* cur = tokens; - CID_Token_Rec* limit = cur + max_tokens; - - - parser->cursor = master.start; - parser->limit = master.limit; - - while ( parser->cursor < parser->limit ) - { - CID_Token_Rec token; - - - CID_ToToken( parser, &token ); - if ( !token.type ) - break; - - if ( cur < limit ) - *cur = token; - - cur++; - } - - *pnum_tokens = cur - tokens; - - parser->cursor = old_cursor; - parser->limit = old_limit; - } - } - - - static - FT_Long t1_toint( FT_Byte** cursor, - FT_Byte* limit ) - { - FT_Long result = 0; - FT_Byte* cur = *cursor; - FT_Byte c, d; - - - for ( ; cur < limit; cur++ ) - { - c = *cur; - d = (FT_Byte)( c - '0' ); - if ( d < 10 ) - break; - - if ( c == '-' ) - { - cur++; - break; - } - } - - if ( cur < limit ) - { - do - { - d = (FT_Byte)( cur[0] - '0' ); - if ( d >= 10 ) - break; - - result = result * 10 + d; - cur++; - - } while ( cur < limit ); - - if ( c == '-' ) - result = -result; - } - - *cursor = cur; - - return result; - } - - - static - FT_Long t1_tofixed( FT_Byte** cursor, - FT_Byte* limit, - FT_Long power_ten ) - { - FT_Byte* cur = *cursor; - FT_Long num, divider, result; - FT_Int sign = 0; - FT_Byte d; - - - if ( cur >= limit ) - return 0; - - /* first of all, read the integer part */ - result = t1_toint( &cur, limit ) << 16; - num = 0; - divider = 1; - - if ( result < 0 ) - { - sign = 1; - result = -result; - } - - if ( cur >= limit ) - goto Exit; - - /* read decimal part, if any */ - if ( *cur == '.' && cur + 1 < limit ) - { - cur++; - - for (;;) - { - d = (FT_Byte)( *cur - '0' ); - if ( 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 += t1_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; - - *cursor = cur; - - return result; - } - - - static - int t1_tobool( FT_Byte** cursor, - FT_Byte* limit ) - { - FT_Byte* cur = *cursor; - FT_Bool result = 0; - - - /* return 1 if we find a "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; - } - *cursor = cur; - return result; - } - - - static - FT_Int t1_tocoordarray( FT_Byte** cursor, - FT_Byte* limit, - FT_Int max_coords, - FT_Short* coords ) - { - FT_Byte* cur = *cursor; - FT_Int count = 0; - FT_Byte c, ender; - - - if ( cur >= limit ) - goto Exit; - - /* check for the beginning of an array. */ - /* If not, only one number will be read */ - c = *cur; - ender = 0; - - if ( c == '[' ) - ender = ']'; - - if ( c == '{' ) - ender = '}'; - - if ( ender ) - cur++; - - /* now, read the coordinates */ - for ( ; cur < limit; ) - { - /* skip whitespace in front of data */ - for (;;) - { - c = *cur; - if ( c != ' ' && c != '\t' ) - break; - - cur++; - if ( cur >= limit ) - goto Exit; - } - - if ( count >= max_coords || c == ender ) - break; - - coords[count] = (FT_Short)( t1_tofixed( &cur, limit, 0 ) >> 16 ); - count++; - - if ( !ender ) - break; - } - - Exit: - *cursor = cur; - return count; - } - - - static - FT_Int t1_tofixedarray( FT_Byte** cursor, - FT_Byte* limit, - FT_Int max_values, - FT_Fixed* values, - FT_Int power_ten ) - { - FT_Byte* cur = *cursor; - FT_Int count = 0; - FT_Byte c, ender; - - - if ( cur >= limit ) - goto Exit; - - /* check for the beginning of an array. */ - /* If not, only one number will be read */ - c = *cur; - ender = 0; - - if ( c == '[' ) - ender = ']'; - - if ( c == '{' ) - ender = '}'; - - if ( ender ) - cur++; - - /* now, read the values */ - for ( ; cur < limit; ) - { - /* skip whitespace in front of data */ - for (;;) - { - c = *cur; - if ( c != ' ' && c != '\t' ) - break; - - cur++; - if ( cur >= limit ) - goto Exit; - } - - if ( count >= max_values || c == ender ) - break; - - values[count] = t1_tofixed( &cur, limit, power_ten ); - count++; - - if ( !ender ) - break; - } - - Exit: - *cursor = cur; - - return count; - } - - - /* Loads a simple field (i.e. non-table) into the current */ - /* list of objects */ - LOCAL_FUNC - FT_Error CID_Load_Field( CID_Parser* parser, - const CID_Field_Rec* field, - void* object ) - { - CID_Token_Rec token; - FT_Byte* cur; - FT_Byte* limit; - FT_UInt count; - FT_UInt index; - FT_Error error; - - - CID_ToToken( parser, &token ); - if ( !token.type ) - goto Fail; - - count = 1; - index = 0; - cur = token.start; - limit = token.limit; - - { - FT_Byte* q = (FT_Byte*)object + field->offset; - FT_Long val; - FT_String* string; - - - switch ( field->type ) - { - case t1_field_bool: - val = t1_tobool( &cur, limit ); - goto Store_Integer; - - case t1_field_fixed: - val = t1_tofixed( &cur, limit, 0 ); - goto Store_Integer; - - case t1_field_integer: - val = t1_toint( &cur, limit ); - - Store_Integer: - switch ( field->size ) - { - case 1: - *(FT_Byte*)q = (FT_Byte)val; - break; - - case 2: - *(FT_UShort*)q = (FT_UShort)val; - break; - - case 4: - *(FT_Int32*)q = (FT_Int)val; - break; - - default: /* for 64-bit systems */ - *(FT_Long*)q = val; - } - break; - - case t1_field_string: - { - FT_Memory memory = parser->memory; - FT_UInt len = limit-cur; - - - if ( ALLOC( string, len + 1 ) ) - goto Exit; - - MEM_Copy( string, cur, len ); - string[len] = 0; - - *(FT_String**)q = string; - } - break; - - default: - /* an error occurred */ - goto Fail; - } - } - - error = 0; - - Exit: - return error; - - Fail: - error = T1_Err_Invalid_File_Format; - goto Exit; - } - - -#define T1_MAX_TABLE_ELEMENTS 32 - - - LOCAL_FUNC - FT_Error CID_Load_Field_Table( CID_Parser* parser, - const CID_Field_Rec* field, - void* object ) - { - CID_Token_Rec elements[T1_MAX_TABLE_ELEMENTS]; - CID_Token_Rec* token; - FT_Int num_elements; - FT_Error error = 0; - FT_Byte* old_cursor; - FT_Byte* old_limit; - CID_Field_Rec fieldrec = *(CID_Field_Rec*)field; - - - fieldrec.type = t1_field_integer; - if ( field->type == t1_field_fixed_array ) - fieldrec.type = t1_field_fixed; - - CID_ToTokenArray( parser, elements, 32, &num_elements ); - if ( num_elements < 0 ) - goto Fail; - - 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 */ - if ( field->count_offset ) - *(FT_Byte*)( (FT_Byte*)object + field->count_offset ) = 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; - CID_Load_Field( parser, &fieldrec, object ); - fieldrec.offset += fieldrec.size; - } - - parser->cursor = old_cursor; - parser->limit = old_limit; - - Exit: - return error; - - Fail: - error = T1_Err_Invalid_File_Format; - goto Exit; - } - - - LOCAL_FUNC - FT_Long CID_ToInt( CID_Parser* parser ) - { - return t1_toint( &parser->cursor, parser->limit ); - } - - - LOCAL_FUNC - FT_Int CID_ToCoordArray( CID_Parser* parser, - FT_Int max_coords, - FT_Short* coords ) - { - return t1_tocoordarray( &parser->cursor, parser->limit, - max_coords, coords ); - } - - - LOCAL_FUNC - FT_Int CID_ToFixedArray( CID_Parser* parser, - FT_Int max_values, - FT_Fixed* values, - FT_Int power_ten ) - { - return t1_tofixedarray( &parser->cursor, parser->limit, - max_values, values, power_ten ); - } - - -#if 0 - - /* return the value of an hexadecimal digit */ - static - int hexa_value( char c ) - { - unsigned int d; - - - d = (unsigned int)( c - '0' ); - if ( d <= 9 ) - return (int)d; - - d = (unsigned int)( c - 'a' ); - if ( d <= 5 ) - return (int)( d + 10 ); - - d = (unsigned int)( c - 'A' ); - if ( d <= 5 ) - return (int)( d + 10 ); - - return -1; - } - -#endif /* 0 */ - - - LOCAL_FUNC - FT_Error CID_New_Parser( CID_Parser* parser, - FT_Stream stream, - FT_Memory memory ) - { - FT_Error error; - FT_ULong base_offset, offset, ps_len; - FT_Byte buffer[256 + 10]; - FT_Int buff_len; - - - MEM_Set( parser, 0, sizeof ( *parser ) ); - parser->stream = stream; - parser->memory = memory; - - base_offset = FILE_Pos(); - - /* first of all, check the font format in the header */ - if ( ACCESS_Frame( 31 ) ) - goto Exit; - - if ( strncmp( (char *)stream->cursor, - "%!PS-Adobe-3.0 Resource-CIDFont", 31 ) ) - { - FT_TRACE2(( "[not a valid CID-keyed font]\n" )); - error = FT_Err_Unknown_File_Format; - } - - FORGET_Frame(); - 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; - - /* fill input buffer */ - buff_len -= 256; - if ( buff_len > 0 ) - MEM_Move( buffer, limit, buff_len ); - - if ( FILE_Read( buffer, 256 + 10 - buff_len ) ) - goto Exit; - - buff_len = 256 + 10; - - /* look for `StartData' */ - for ( p = buffer; p < limit; p++ ) - { - if ( p[0] == 'S' && strncmp( (char*)p, "StartData", 9 ) == 0 ) - { - /* save offset of binary data after `StartData' */ - offset = FILE_Pos() - ( 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 ( FILE_Seek( base_offset ) || - EXTRACT_Frame( ps_len, parser->postscript ) ) - goto Exit; - - parser->data_offset = offset; - parser->postscript_len = ps_len; - parser->cursor = parser->postscript; - parser->limit = parser->cursor + ps_len; - parser->num_dict = -1; - - Exit: - return error; - } - - - LOCAL_FUNC - void CID_Done_Parser( CID_Parser* parser ) - { - /* always free the private dictionary */ - if ( parser->postscript ) - { - FT_Stream stream = parser->stream; - - - RELEASE_Frame( parser->postscript ); - } - } - - -/* END */ |