| /***************************************************************************/ |
| /* */ |
| /* t1load.c */ |
| /* */ |
| /* Type 1 font loader (body). */ |
| /* */ |
| /* Copyright 1996-2015 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. */ |
| /* */ |
| /***************************************************************************/ |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* This is the new and improved Type 1 data loader for FreeType 2. The */ |
| /* old loader has several problems: it is slow, complex, difficult to */ |
| /* maintain, and contains incredible hacks to make it accept some */ |
| /* ill-formed Type 1 fonts without hiccup-ing. Moreover, about 5% of */ |
| /* the Type 1 fonts on my machine still aren't loaded correctly by it. */ |
| /* */ |
| /* This version is much simpler, much faster and also easier to read and */ |
| /* maintain by a great order of magnitude. The idea behind it is to */ |
| /* _not_ try to read the Type 1 token stream with a state machine (i.e. */ |
| /* a Postscript-like interpreter) but rather to perform simple pattern */ |
| /* matching. */ |
| /* */ |
| /* Indeed, nearly all data definitions follow a simple pattern like */ |
| /* */ |
| /* ... /Field <data> ... */ |
| /* */ |
| /* where <data> can be a number, a boolean, a string, or an array of */ |
| /* numbers. There are a few exceptions, namely the encoding, font name, */ |
| /* charstrings, and subrs; they are handled with a special pattern */ |
| /* matching routine. */ |
| /* */ |
| /* All other common cases are handled very simply. The matching rules */ |
| /* are defined in the file `t1tokens.h' through the use of several */ |
| /* macros calls PARSE_XXX. This file is included twice here; the first */ |
| /* time to generate parsing callback functions, the second time to */ |
| /* generate a table of keywords (with pointers to the associated */ |
| /* callback functions). */ |
| /* */ |
| /* The function `parse_dict' simply scans *linearly* a given dictionary */ |
| /* (either the top-level or private one) and calls the appropriate */ |
| /* callback when it encounters an immediate keyword. */ |
| /* */ |
| /* This is by far the fastest way one can find to parse and read all */ |
| /* data. */ |
| /* */ |
| /* This led to tremendous code size reduction. Note that later, the */ |
| /* glyph loader will also be _greatly_ simplified, and the automatic */ |
| /* hinter will replace the clumsy `t1hinter'. */ |
| /* */ |
| /*************************************************************************/ |
| |
| |
| #include <ft2build.h> |
| #include FT_INTERNAL_DEBUG_H |
| #include FT_CONFIG_CONFIG_H |
| #include FT_MULTIPLE_MASTERS_H |
| #include FT_INTERNAL_TYPE1_TYPES_H |
| #include FT_INTERNAL_CALC_H |
| |
| #include "t1load.h" |
| #include "t1errors.h" |
| |
| |
| #ifdef FT_CONFIG_OPTION_INCREMENTAL |
| #define IS_INCREMENTAL (FT_Bool)( face->root.internal->incremental_interface != 0 ) |
| #else |
| #define IS_INCREMENTAL 0 |
| #endif |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* 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_t1load |
| |
| |
| #ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /***** *****/ |
| /***** MULTIPLE MASTERS SUPPORT *****/ |
| /***** *****/ |
| /*************************************************************************/ |
| /*************************************************************************/ |
| |
| static FT_Error |
| t1_allocate_blend( T1_Face face, |
| FT_UInt num_designs, |
| FT_UInt num_axis ) |
| { |
| PS_Blend blend; |
| FT_Memory memory = face->root.memory; |
| FT_Error error = FT_Err_Ok; |
| |
| |
| blend = face->blend; |
| if ( !blend ) |
| { |
| if ( FT_NEW( blend ) ) |
| goto Exit; |
| |
| blend->num_default_design_vector = 0; |
| |
| face->blend = blend; |
| } |
| |
| /* allocate design data if needed */ |
| if ( num_designs > 0 ) |
| { |
| if ( blend->num_designs == 0 ) |
| { |
| FT_UInt nn; |
| |
| |
| /* allocate the blend `private' and `font_info' dictionaries */ |
| if ( FT_NEW_ARRAY( blend->font_infos[1], num_designs ) || |
| FT_NEW_ARRAY( blend->privates [1], num_designs ) || |
| FT_NEW_ARRAY( blend->bboxes [1], num_designs ) || |
| FT_NEW_ARRAY( blend->weight_vector, num_designs * 2 ) ) |
| goto Exit; |
| |
| blend->default_weight_vector = blend->weight_vector + num_designs; |
| |
| blend->font_infos[0] = &face->type1.font_info; |
| blend->privates [0] = &face->type1.private_dict; |
| blend->bboxes [0] = &face->type1.font_bbox; |
| |
| for ( nn = 2; nn <= num_designs; nn++ ) |
| { |
| blend->font_infos[nn] = blend->font_infos[nn - 1] + 1; |
| blend->privates [nn] = blend->privates [nn - 1] + 1; |
| blend->bboxes [nn] = blend->bboxes [nn - 1] + 1; |
| } |
| |
| blend->num_designs = num_designs; |
| } |
| else if ( blend->num_designs != num_designs ) |
| goto Fail; |
| } |
| |
| /* allocate axis data if needed */ |
| if ( num_axis > 0 ) |
| { |
| if ( blend->num_axis != 0 && blend->num_axis != num_axis ) |
| goto Fail; |
| |
| blend->num_axis = num_axis; |
| } |
| |
| /* allocate the blend design pos table if needed */ |
| num_designs = blend->num_designs; |
| num_axis = blend->num_axis; |
| if ( num_designs && num_axis && blend->design_pos[0] == 0 ) |
| { |
| FT_UInt n; |
| |
| |
| if ( FT_NEW_ARRAY( blend->design_pos[0], num_designs * num_axis ) ) |
| goto Exit; |
| |
| for ( n = 1; n < num_designs; n++ ) |
| blend->design_pos[n] = blend->design_pos[0] + num_axis * n; |
| } |
| |
| Exit: |
| return error; |
| |
| Fail: |
| error = FT_THROW( Invalid_File_Format ); |
| goto Exit; |
| } |
| |
| |
| FT_LOCAL_DEF( FT_Error ) |
| T1_Get_Multi_Master( T1_Face face, |
| FT_Multi_Master* master ) |
| { |
| PS_Blend blend = face->blend; |
| FT_UInt n; |
| FT_Error error; |
| |
| |
| error = FT_THROW( Invalid_Argument ); |
| |
| if ( blend ) |
| { |
| master->num_axis = blend->num_axis; |
| master->num_designs = blend->num_designs; |
| |
| for ( n = 0; n < blend->num_axis; n++ ) |
| { |
| FT_MM_Axis* axis = master->axis + n; |
| PS_DesignMap map = blend->design_map + n; |
| |
| |
| axis->name = blend->axis_names[n]; |
| axis->minimum = map->design_points[0]; |
| axis->maximum = map->design_points[map->num_points - 1]; |
| } |
| |
| error = FT_Err_Ok; |
| } |
| |
| return error; |
| } |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* Given a normalized (blend) coordinate, figure out the design */ |
| /* coordinate appropriate for that value. */ |
| /* */ |
| static FT_Fixed |
| mm_axis_unmap( PS_DesignMap axismap, |
| FT_Fixed ncv ) |
| { |
| int j; |
| |
| |
| if ( ncv <= axismap->blend_points[0] ) |
| return INT_TO_FIXED( axismap->design_points[0] ); |
| |
| for ( j = 1; j < axismap->num_points; ++j ) |
| { |
| if ( ncv <= axismap->blend_points[j] ) |
| return INT_TO_FIXED( axismap->design_points[j - 1] ) + |
| ( axismap->design_points[j] - axismap->design_points[j - 1] ) * |
| FT_DivFix( ncv - axismap->blend_points[j - 1], |
| axismap->blend_points[j] - |
| axismap->blend_points[j - 1] ); |
| } |
| |
| return INT_TO_FIXED( axismap->design_points[axismap->num_points - 1] ); |
| } |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* Given a vector of weights, one for each design, figure out the */ |
| /* normalized axis coordinates which gave rise to those weights. */ |
| /* */ |
| static void |
| mm_weights_unmap( FT_Fixed* weights, |
| FT_Fixed* axiscoords, |
| FT_UInt axis_count ) |
| { |
| FT_ASSERT( axis_count <= T1_MAX_MM_AXIS ); |
| |
| if ( axis_count == 1 ) |
| axiscoords[0] = weights[1]; |
| |
| else if ( axis_count == 2 ) |
| { |
| axiscoords[0] = weights[3] + weights[1]; |
| axiscoords[1] = weights[3] + weights[2]; |
| } |
| |
| else if ( axis_count == 3 ) |
| { |
| axiscoords[0] = weights[7] + weights[5] + weights[3] + weights[1]; |
| axiscoords[1] = weights[7] + weights[6] + weights[3] + weights[2]; |
| axiscoords[2] = weights[7] + weights[6] + weights[5] + weights[4]; |
| } |
| |
| else |
| { |
| axiscoords[0] = weights[15] + weights[13] + weights[11] + weights[9] + |
| weights[7] + weights[5] + weights[3] + weights[1]; |
| axiscoords[1] = weights[15] + weights[14] + weights[11] + weights[10] + |
| weights[7] + weights[6] + weights[3] + weights[2]; |
| axiscoords[2] = weights[15] + weights[14] + weights[13] + weights[12] + |
| weights[7] + weights[6] + weights[5] + weights[4]; |
| axiscoords[3] = weights[15] + weights[14] + weights[13] + weights[12] + |
| weights[11] + weights[10] + weights[9] + weights[8]; |
| } |
| } |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* Just a wrapper around T1_Get_Multi_Master to support the different */ |
| /* arguments needed by the GX var distortable fonts. */ |
| /* */ |
| FT_LOCAL_DEF( FT_Error ) |
| T1_Get_MM_Var( T1_Face face, |
| FT_MM_Var* *master ) |
| { |
| FT_Memory memory = face->root.memory; |
| FT_MM_Var *mmvar = NULL; |
| FT_Multi_Master mmaster; |
| FT_Error error; |
| FT_UInt i; |
| FT_Fixed axiscoords[T1_MAX_MM_AXIS]; |
| PS_Blend blend = face->blend; |
| |
| |
| error = T1_Get_Multi_Master( face, &mmaster ); |
| if ( error ) |
| goto Exit; |
| if ( FT_ALLOC( mmvar, |
| sizeof ( FT_MM_Var ) + |
| mmaster.num_axis * sizeof ( FT_Var_Axis ) ) ) |
| goto Exit; |
| |
| mmvar->num_axis = mmaster.num_axis; |
| mmvar->num_designs = mmaster.num_designs; |
| mmvar->num_namedstyles = ~0U; /* Does not apply */ |
| mmvar->axis = (FT_Var_Axis*)&mmvar[1]; |
| /* Point to axes after MM_Var struct */ |
| mmvar->namedstyle = NULL; |
| |
| for ( i = 0 ; i < mmaster.num_axis; ++i ) |
| { |
| mmvar->axis[i].name = mmaster.axis[i].name; |
| mmvar->axis[i].minimum = INT_TO_FIXED( mmaster.axis[i].minimum); |
| mmvar->axis[i].maximum = INT_TO_FIXED( mmaster.axis[i].maximum); |
| mmvar->axis[i].def = ( mmvar->axis[i].minimum + |
| mmvar->axis[i].maximum ) / 2; |
| /* Does not apply. But this value is in range */ |
| mmvar->axis[i].strid = ~0U; /* Does not apply */ |
| mmvar->axis[i].tag = ~0U; /* Does not apply */ |
| |
| if ( ft_strcmp( mmvar->axis[i].name, "Weight" ) == 0 ) |
| mmvar->axis[i].tag = FT_MAKE_TAG( 'w', 'g', 'h', 't' ); |
| else if ( ft_strcmp( mmvar->axis[i].name, "Width" ) == 0 ) |
| mmvar->axis[i].tag = FT_MAKE_TAG( 'w', 'd', 't', 'h' ); |
| else if ( ft_strcmp( mmvar->axis[i].name, "OpticalSize" ) == 0 ) |
| mmvar->axis[i].tag = FT_MAKE_TAG( 'o', 'p', 's', 'z' ); |
| } |
| |
| if ( blend->num_designs == ( 1U << blend->num_axis ) ) |
| { |
| mm_weights_unmap( blend->default_weight_vector, |
| axiscoords, |
| blend->num_axis ); |
| |
| for ( i = 0; i < mmaster.num_axis; ++i ) |
| mmvar->axis[i].def = mm_axis_unmap( &blend->design_map[i], |
| axiscoords[i] ); |
| } |
| |
| *master = mmvar; |
| |
| Exit: |
| return error; |
| } |
| |
| |
| FT_LOCAL_DEF( FT_Error ) |
| T1_Set_MM_Blend( T1_Face face, |
| FT_UInt num_coords, |
| FT_Fixed* coords ) |
| { |
| PS_Blend blend = face->blend; |
| FT_UInt n, m; |
| |
| |
| if ( !blend ) |
| return FT_THROW( Invalid_Argument ); |
| |
| if ( num_coords > blend->num_axis ) |
| num_coords = blend->num_axis; |
| |
| /* recompute the weight vector from the blend coordinates */ |
| for ( n = 0; n < blend->num_designs; n++ ) |
| { |
| FT_Fixed result = 0x10000L; /* 1.0 fixed */ |
| |
| |
| for ( m = 0; m < blend->num_axis; m++ ) |
| { |
| FT_Fixed factor; |
| |
| |
| /* get current blend axis position; */ |
| /* use a default value if we don't have a coordinate */ |
| factor = m < num_coords ? coords[m] : 0x8000; |
| if ( factor < 0 ) |
| factor = 0; |
| if ( factor > 0x10000L ) |
| factor = 0x10000L; |
| |
| if ( ( n & ( 1 << m ) ) == 0 ) |
| factor = 0x10000L - factor; |
| |
| result = FT_MulFix( result, factor ); |
| } |
| blend->weight_vector[n] = result; |
| } |
| |
| return FT_Err_Ok; |
| } |
| |
| |
| FT_LOCAL_DEF( FT_Error ) |
| T1_Set_MM_Design( T1_Face face, |
| FT_UInt num_coords, |
| FT_Long* coords ) |
| { |
| PS_Blend blend = face->blend; |
| FT_UInt n, p; |
| FT_Fixed final_blends[T1_MAX_MM_DESIGNS]; |
| |
| |
| if ( !blend ) |
| return FT_THROW( Invalid_Argument ); |
| |
| if ( num_coords > blend->num_axis ) |
| num_coords = blend->num_axis; |
| |
| /* compute the blend coordinates through the blend design map */ |
| |
| for ( n = 0; n < blend->num_axis; n++ ) |
| { |
| FT_Long design; |
| FT_Fixed the_blend; |
| PS_DesignMap map = blend->design_map + n; |
| FT_Long* designs = map->design_points; |
| FT_Fixed* blends = map->blend_points; |
| FT_Int before = -1, after = -1; |
| |
| |
| /* use a default value if we don't have a coordinate */ |
| if ( n < num_coords ) |
| design = coords[n]; |
| else |
| design = ( designs[map->num_points - 1] - designs[0] ) / 2; |
| |
| for ( p = 0; p < (FT_UInt)map->num_points; p++ ) |
| { |
| FT_Long p_design = designs[p]; |
| |
| |
| /* exact match? */ |
| if ( design == p_design ) |
| { |
| the_blend = blends[p]; |
| goto Found; |
| } |
| |
| if ( design < p_design ) |
| { |
| after = (FT_Int)p; |
| break; |
| } |
| |
| before = (FT_Int)p; |
| } |
| |
| /* now interpolate if necessary */ |
| if ( before < 0 ) |
| the_blend = blends[0]; |
| |
| else if ( after < 0 ) |
| the_blend = blends[map->num_points - 1]; |
| |
| else |
| the_blend = FT_MulDiv( design - designs[before], |
| blends [after] - blends [before], |
| designs[after] - designs[before] ); |
| |
| Found: |
| final_blends[n] = the_blend; |
| } |
| |
| return T1_Set_MM_Blend( face, blend->num_axis, final_blends ); |
| } |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* Just a wrapper around T1_Set_MM_Design to support the different */ |
| /* arguments needed by the GX var distortable fonts. */ |
| /* */ |
| FT_LOCAL_DEF( FT_Error ) |
| T1_Set_Var_Design( T1_Face face, |
| FT_UInt num_coords, |
| FT_Fixed* coords ) |
| { |
| FT_Long lcoords[T1_MAX_MM_AXIS]; |
| FT_UInt i; |
| |
| |
| if ( num_coords > T1_MAX_MM_AXIS ) |
| num_coords = T1_MAX_MM_AXIS; |
| |
| for ( i = 0; i < num_coords; ++i ) |
| lcoords[i] = FIXED_TO_INT( coords[i] ); |
| |
| return T1_Set_MM_Design( face, num_coords, lcoords ); |
| } |
| |
| |
| FT_LOCAL_DEF( void ) |
| T1_Done_Blend( T1_Face face ) |
| { |
| FT_Memory memory = face->root.memory; |
| PS_Blend blend = face->blend; |
| |
| |
| if ( blend ) |
| { |
| FT_UInt num_designs = blend->num_designs; |
| FT_UInt num_axis = blend->num_axis; |
| FT_UInt n; |
| |
| |
| /* release design pos table */ |
| FT_FREE( blend->design_pos[0] ); |
| for ( n = 1; n < num_designs; n++ ) |
| blend->design_pos[n] = NULL; |
| |
| /* release blend `private' and `font info' dictionaries */ |
| FT_FREE( blend->privates[1] ); |
| FT_FREE( blend->font_infos[1] ); |
| FT_FREE( blend->bboxes[1] ); |
| |
| for ( n = 0; n < num_designs; n++ ) |
| { |
| blend->privates [n] = NULL; |
| blend->font_infos[n] = NULL; |
| blend->bboxes [n] = NULL; |
| } |
| |
| /* release weight vectors */ |
| FT_FREE( blend->weight_vector ); |
| blend->default_weight_vector = NULL; |
| |
| /* release axis names */ |
| for ( n = 0; n < num_axis; n++ ) |
| FT_FREE( blend->axis_names[n] ); |
| |
| /* release design map */ |
| for ( n = 0; n < num_axis; n++ ) |
| { |
| PS_DesignMap dmap = blend->design_map + n; |
| |
| |
| FT_FREE( dmap->design_points ); |
| dmap->num_points = 0; |
| } |
| |
| FT_FREE( face->blend ); |
| } |
| } |
| |
| |
| static void |
| parse_blend_axis_types( T1_Face face, |
| T1_Loader loader ) |
| { |
| T1_TokenRec axis_tokens[T1_MAX_MM_AXIS]; |
| FT_Int n, num_axis; |
| FT_Error error = FT_Err_Ok; |
| PS_Blend blend; |
| FT_Memory memory; |
| |
| |
| /* take an array of objects */ |
| T1_ToTokenArray( &loader->parser, axis_tokens, |
| T1_MAX_MM_AXIS, &num_axis ); |
| if ( num_axis < 0 ) |
| { |
| error = FT_ERR( Ignore ); |
| goto Exit; |
| } |
| if ( num_axis == 0 || num_axis > T1_MAX_MM_AXIS ) |
| { |
| FT_ERROR(( "parse_blend_axis_types: incorrect number of axes: %d\n", |
| num_axis )); |
| error = FT_THROW( Invalid_File_Format ); |
| goto Exit; |
| } |
| |
| /* allocate blend if necessary */ |
| error = t1_allocate_blend( face, 0, (FT_UInt)num_axis ); |
| if ( error ) |
| goto Exit; |
| |
| blend = face->blend; |
| memory = face->root.memory; |
| |
| /* each token is an immediate containing the name of the axis */ |
| for ( n = 0; n < num_axis; n++ ) |
| { |
| T1_Token token = axis_tokens + n; |
| FT_Byte* name; |
| FT_UInt len; |
| |
| |
| /* skip first slash, if any */ |
| if ( token->start[0] == '/' ) |
| token->start++; |
| |
| len = (FT_UInt)( token->limit - token->start ); |
| if ( len == 0 ) |
| { |
| error = FT_THROW( Invalid_File_Format ); |
| goto Exit; |
| } |
| |
| if ( FT_ALLOC( blend->axis_names[n], len + 1 ) ) |
| goto Exit; |
| |
| name = (FT_Byte*)blend->axis_names[n]; |
| FT_MEM_COPY( name, token->start, len ); |
| name[len] = '\0'; |
| } |
| |
| Exit: |
| loader->parser.root.error = error; |
| } |
| |
| |
| static void |
| parse_blend_design_positions( T1_Face face, |
| T1_Loader loader ) |
| { |
| T1_TokenRec design_tokens[T1_MAX_MM_DESIGNS]; |
| FT_Int num_designs; |
| FT_Int num_axis; |
| T1_Parser parser = &loader->parser; |
| |
| FT_Error error = FT_Err_Ok; |
| PS_Blend blend; |
| |
| |
| /* get the array of design tokens -- compute number of designs */ |
| T1_ToTokenArray( parser, design_tokens, |
| T1_MAX_MM_DESIGNS, &num_designs ); |
| if ( num_designs < 0 ) |
| { |
| error = FT_ERR( Ignore ); |
| goto Exit; |
| } |
| if ( num_designs == 0 || num_designs > T1_MAX_MM_DESIGNS ) |
| { |
| FT_ERROR(( "parse_blend_design_positions:" |
| " incorrect number of designs: %d\n", |
| num_designs )); |
| error = FT_THROW( Invalid_File_Format ); |
| goto Exit; |
| } |
| |
| { |
| FT_Byte* old_cursor = parser->root.cursor; |
| FT_Byte* old_limit = parser->root.limit; |
| FT_Int n; |
| |
| |
| blend = face->blend; |
| num_axis = 0; /* make compiler happy */ |
| |
| for ( n = 0; n < num_designs; n++ ) |
| { |
| T1_TokenRec axis_tokens[T1_MAX_MM_AXIS]; |
| T1_Token token; |
| FT_Int axis, n_axis; |
| |
| |
| /* read axis/coordinates tokens */ |
| token = design_tokens + n; |
| parser->root.cursor = token->start; |
| parser->root.limit = token->limit; |
| T1_ToTokenArray( parser, axis_tokens, T1_MAX_MM_AXIS, &n_axis ); |
| |
| if ( n == 0 ) |
| { |
| if ( n_axis <= 0 || n_axis > T1_MAX_MM_AXIS ) |
| { |
| FT_ERROR(( "parse_blend_design_positions:" |
| " invalid number of axes: %d\n", |
| n_axis )); |
| error = FT_THROW( Invalid_File_Format ); |
| goto Exit; |
| } |
| |
| num_axis = n_axis; |
| error = t1_allocate_blend( face, |
| (FT_UInt)num_designs, |
| (FT_UInt)num_axis ); |
| if ( error ) |
| goto Exit; |
| blend = face->blend; |
| } |
| else if ( n_axis != num_axis ) |
| { |
| FT_ERROR(( "parse_blend_design_positions: incorrect table\n" )); |
| error = FT_THROW( Invalid_File_Format ); |
| goto Exit; |
| } |
| |
| /* now read each axis token into the design position */ |
| for ( axis = 0; axis < n_axis; axis++ ) |
| { |
| T1_Token token2 = axis_tokens + axis; |
| |
| |
| parser->root.cursor = token2->start; |
| parser->root.limit = token2->limit; |
| blend->design_pos[n][axis] = T1_ToFixed( parser, 0 ); |
| } |
| } |
| |
| loader->parser.root.cursor = old_cursor; |
| loader->parser.root.limit = old_limit; |
| } |
| |
| Exit: |
| loader->parser.root.error = error; |
| } |
| |
| |
| static void |
| parse_blend_design_map( T1_Face face, |
| T1_Loader loader ) |
| { |
| FT_Error error = FT_Err_Ok; |
| T1_Parser parser = &loader->parser; |
| PS_Blend blend; |
| T1_TokenRec axis_tokens[T1_MAX_MM_AXIS]; |
| FT_Int n, num_axis; |
| FT_Byte* old_cursor; |
| FT_Byte* old_limit; |
| FT_Memory memory = face->root.memory; |
| |
| |
| T1_ToTokenArray( parser, axis_tokens, |
| T1_MAX_MM_AXIS, &num_axis ); |
| if ( num_axis < 0 ) |
| { |
| error = FT_ERR( Ignore ); |
| goto Exit; |
| } |
| if ( num_axis == 0 || num_axis > T1_MAX_MM_AXIS ) |
| { |
| FT_ERROR(( "parse_blend_design_map: incorrect number of axes: %d\n", |
| num_axis )); |
| error = FT_THROW( Invalid_File_Format ); |
| goto Exit; |
| } |
| |
| old_cursor = parser->root.cursor; |
| old_limit = parser->root.limit; |
| |
| error = t1_allocate_blend( face, 0, (FT_UInt)num_axis ); |
| if ( error ) |
| goto Exit; |
| blend = face->blend; |
| |
| /* now read each axis design map */ |
| for ( n = 0; n < num_axis; n++ ) |
| { |
| PS_DesignMap map = blend->design_map + n; |
| T1_Token axis_token; |
| T1_TokenRec point_tokens[T1_MAX_MM_MAP_POINTS]; |
| FT_Int p, num_points; |
| |
| |
| axis_token = axis_tokens + n; |
| |
| parser->root.cursor = axis_token->start; |
| parser->root.limit = axis_token->limit; |
| T1_ToTokenArray( parser, point_tokens, |
| T1_MAX_MM_MAP_POINTS, &num_points ); |
| |
| if ( num_points <= 0 || num_points > T1_MAX_MM_MAP_POINTS ) |
| { |
| FT_ERROR(( "parse_blend_design_map: incorrect table\n" )); |
| error = FT_THROW( Invalid_File_Format ); |
| goto Exit; |
| } |
| |
| /* allocate design map data */ |
| if ( FT_NEW_ARRAY( map->design_points, num_points * 2 ) ) |
| goto Exit; |
| map->blend_points = map->design_points + num_points; |
| map->num_points = (FT_Byte)num_points; |
| |
| for ( p = 0; p < num_points; p++ ) |
| { |
| T1_Token point_token; |
| |
| |
| point_token = point_tokens + p; |
| |
| /* don't include delimiting brackets */ |
| parser->root.cursor = point_token->start + 1; |
| parser->root.limit = point_token->limit - 1; |
| |
| map->design_points[p] = T1_ToInt( parser ); |
| map->blend_points [p] = T1_ToFixed( parser, 0 ); |
| } |
| } |
| |
| parser->root.cursor = old_cursor; |
| parser->root.limit = old_limit; |
| |
| Exit: |
| parser->root.error = error; |
| } |
| |
| |
| static void |
| parse_weight_vector( T1_Face face, |
| T1_Loader loader ) |
| { |
| T1_TokenRec design_tokens[T1_MAX_MM_DESIGNS]; |
| FT_Int num_designs; |
| FT_Error error = FT_Err_Ok; |
| T1_Parser parser = &loader->parser; |
| PS_Blend blend = face->blend; |
| T1_Token token; |
| FT_Int n; |
| FT_Byte* old_cursor; |
| FT_Byte* old_limit; |
| |
| |
| T1_ToTokenArray( parser, design_tokens, |
| T1_MAX_MM_DESIGNS, &num_designs ); |
| if ( num_designs < 0 ) |
| { |
| error = FT_ERR( Ignore ); |
| goto Exit; |
| } |
| if ( num_designs == 0 || num_designs > T1_MAX_MM_DESIGNS ) |
| { |
| FT_ERROR(( "parse_weight_vector:" |
| " incorrect number of designs: %d\n", |
| num_designs )); |
| error = FT_THROW( Invalid_File_Format ); |
| goto Exit; |
| } |
| |
| if ( !blend || !blend->num_designs ) |
| { |
| error = t1_allocate_blend( face, (FT_UInt)num_designs, 0 ); |
| if ( error ) |
| goto Exit; |
| blend = face->blend; |
| } |
| else if ( blend->num_designs != (FT_UInt)num_designs ) |
| { |
| FT_ERROR(( "parse_weight_vector:" |
| " /BlendDesignPosition and /WeightVector have\n" |
| " " |
| " different number of elements\n" )); |
| error = FT_THROW( Invalid_File_Format ); |
| goto Exit; |
| } |
| |
| old_cursor = parser->root.cursor; |
| old_limit = parser->root.limit; |
| |
| for ( n = 0; n < num_designs; n++ ) |
| { |
| token = design_tokens + n; |
| parser->root.cursor = token->start; |
| parser->root.limit = token->limit; |
| |
| blend->default_weight_vector[n] = |
| blend->weight_vector[n] = T1_ToFixed( parser, 0 ); |
| } |
| |
| parser->root.cursor = old_cursor; |
| parser->root.limit = old_limit; |
| |
| Exit: |
| parser->root.error = error; |
| } |
| |
| |
| /* e.g., /BuildCharArray [0 0 0 0 0 0 0 0] def */ |
| /* we're only interested in the number of array elements */ |
| static void |
| parse_buildchar( T1_Face face, |
| T1_Loader loader ) |
| { |
| face->len_buildchar = (FT_UInt)T1_ToFixedArray( &loader->parser, |
| 0, NULL, 0 ); |
| return; |
| } |
| |
| |
| #endif /* !T1_CONFIG_OPTION_NO_MM_SUPPORT */ |
| |
| |
| |
| |
| /*************************************************************************/ |
| /*************************************************************************/ |
| /***** *****/ |
| /***** TYPE 1 SYMBOL PARSING *****/ |
| /***** *****/ |
| /*************************************************************************/ |
| /*************************************************************************/ |
| |
| static FT_Error |
| t1_load_keyword( T1_Face face, |
| T1_Loader loader, |
| const T1_Field field ) |
| { |
| FT_Error error; |
| void* dummy_object; |
| void** objects; |
| FT_UInt max_objects; |
| PS_Blend blend = face->blend; |
| |
| |
| if ( blend && blend->num_designs == 0 ) |
| blend = NULL; |
| |
| /* if the keyword has a dedicated callback, call it */ |
| if ( field->type == T1_FIELD_TYPE_CALLBACK ) |
| { |
| field->reader( (FT_Face)face, loader ); |
| error = loader->parser.root.error; |
| goto Exit; |
| } |
| |
| /* now, the keyword is either a simple field, or a table of fields; */ |
| /* we are now going to take care of it */ |
| switch ( field->location ) |
| { |
| case T1_FIELD_LOCATION_FONT_INFO: |
| dummy_object = &face->type1.font_info; |
| objects = &dummy_object; |
| max_objects = 0; |
| |
| if ( blend ) |
| { |
| objects = (void**)blend->font_infos; |
| max_objects = blend->num_designs; |
| } |
| break; |
| |
| case T1_FIELD_LOCATION_FONT_EXTRA: |
| dummy_object = &face->type1.font_extra; |
| objects = &dummy_object; |
| max_objects = 0; |
| break; |
| |
| case T1_FIELD_LOCATION_PRIVATE: |
| dummy_object = &face->type1.private_dict; |
| objects = &dummy_object; |
| max_objects = 0; |
| |
| if ( blend ) |
| { |
| objects = (void**)blend->privates; |
| max_objects = blend->num_designs; |
| } |
| break; |
| |
| case T1_FIELD_LOCATION_BBOX: |
| dummy_object = &face->type1.font_bbox; |
| objects = &dummy_object; |
| max_objects = 0; |
| |
| if ( blend ) |
| { |
| objects = (void**)blend->bboxes; |
| max_objects = blend->num_designs; |
| } |
| break; |
| |
| case T1_FIELD_LOCATION_LOADER: |
| dummy_object = loader; |
| objects = &dummy_object; |
| max_objects = 0; |
| break; |
| |
| case T1_FIELD_LOCATION_FACE: |
| dummy_object = face; |
| objects = &dummy_object; |
| max_objects = 0; |
| break; |
| |
| #ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT |
| case T1_FIELD_LOCATION_BLEND: |
| dummy_object = face->blend; |
| objects = &dummy_object; |
| max_objects = 0; |
| break; |
| #endif |
| |
| default: |
| dummy_object = &face->type1; |
| objects = &dummy_object; |
| max_objects = 0; |
| } |
| |
| if ( *objects ) |
| { |
| if ( field->type == T1_FIELD_TYPE_INTEGER_ARRAY || |
| field->type == T1_FIELD_TYPE_FIXED_ARRAY ) |
| error = T1_Load_Field_Table( &loader->parser, field, |
| objects, max_objects, 0 ); |
| else |
| error = T1_Load_Field( &loader->parser, field, |
| objects, max_objects, 0 ); |
| } |
| else |
| { |
| FT_TRACE1(( "t1_load_keyword: ignoring keyword `%s'" |
| " which is not valid at this point\n" |
| " (probably due to missing keywords)\n", |
| field->ident )); |
| error = FT_Err_Ok; |
| } |
| |
| Exit: |
| return error; |
| } |
| |
| |
| static void |
| parse_private( T1_Face face, |
| T1_Loader loader ) |
| { |
| FT_UNUSED( face ); |
| |
| loader->keywords_encountered |= T1_PRIVATE; |
| } |
| |
| |
| /* return 1 in case of success */ |
| |
| static int |
| read_binary_data( T1_Parser parser, |
| FT_ULong* size, |
| FT_Byte** base, |
| FT_Bool incremental ) |
| { |
| FT_Byte* cur; |
| FT_Byte* limit = parser->root.limit; |
| |
| |
| /* the binary data has one of the following formats */ |
| /* */ |
| /* `size' [white*] RD white ....... ND */ |
| /* `size' [white*] -| white ....... |- */ |
| /* */ |
| |
| T1_Skip_Spaces( parser ); |
| |
| cur = parser->root.cursor; |
| |
| if ( cur < limit && ft_isdigit( *cur ) ) |
| { |
| FT_Long s = T1_ToInt( parser ); |
| |
| |
| T1_Skip_PS_Token( parser ); /* `RD' or `-|' or something else */ |
| |
| /* there is only one whitespace char after the */ |
| /* `RD' or `-|' token */ |
| *base = parser->root.cursor + 1; |
| |
| if ( s >= 0 && s < limit - *base ) |
| { |
| parser->root.cursor += s + 1; |
| *size = (FT_ULong)s; |
| return !parser->root.error; |
| } |
| } |
| |
| if( !incremental ) |
| { |
| FT_ERROR(( "read_binary_data: invalid size field\n" )); |
| parser->root.error = FT_THROW( Invalid_File_Format ); |
| } |
| |
| return 0; |
| } |
| |
| |
| /* We now define the routines to handle the `/Encoding', `/Subrs', */ |
| /* and `/CharStrings' dictionaries. */ |
| |
| static void |
| t1_parse_font_matrix( T1_Face face, |
| T1_Loader loader ) |
| { |
| T1_Parser parser = &loader->parser; |
| FT_Matrix* matrix = &face->type1.font_matrix; |
| FT_Vector* offset = &face->type1.font_offset; |
| FT_Face root = (FT_Face)&face->root; |
| FT_Fixed temp[6]; |
| FT_Fixed temp_scale; |
| FT_Int result; |
| |
| |
| result = T1_ToFixedArray( parser, 6, temp, 3 ); |
| |
| if ( result < 6 ) |
| { |
| parser->root.error = FT_THROW( Invalid_File_Format ); |
| return; |
| } |
| |
| temp_scale = FT_ABS( temp[3] ); |
| |
| if ( temp_scale == 0 ) |
| { |
| FT_ERROR(( "t1_parse_font_matrix: invalid font matrix\n" )); |
| parser->root.error = FT_THROW( Invalid_File_Format ); |
| return; |
| } |
| |
| /* Set Units per EM based on FontMatrix values. We set the value to */ |
| /* 1000 / temp_scale, because temp_scale was already multiplied by */ |
| /* 1000 (in t1_tofixed, from psobjs.c). */ |
| |
| root->units_per_EM = (FT_UShort)FT_DivFix( 1000, temp_scale ); |
| |
| /* we need to scale the values by 1.0/temp_scale */ |
| if ( temp_scale != 0x10000L ) |
| { |
| temp[0] = FT_DivFix( temp[0], temp_scale ); |
| temp[1] = FT_DivFix( temp[1], temp_scale ); |
| temp[2] = FT_DivFix( temp[2], temp_scale ); |
| temp[4] = FT_DivFix( temp[4], temp_scale ); |
| temp[5] = FT_DivFix( temp[5], temp_scale ); |
| temp[3] = temp[3] < 0 ? -0x10000L : 0x10000L; |
| } |
| |
| matrix->xx = temp[0]; |
| matrix->yx = temp[1]; |
| matrix->xy = temp[2]; |
| matrix->yy = temp[3]; |
| |
| /* note that the offsets must be expressed in integer font units */ |
| offset->x = temp[4] >> 16; |
| offset->y = temp[5] >> 16; |
| } |
| |
| |
| static void |
| parse_encoding( T1_Face face, |
| T1_Loader loader ) |
| { |
| T1_Parser parser = &loader->parser; |
| FT_Byte* cur; |
| FT_Byte* limit = parser->root.limit; |
| |
| PSAux_Service psaux = (PSAux_Service)face->psaux; |
| |
| |
| T1_Skip_Spaces( parser ); |
| cur = parser->root.cursor; |
| if ( cur >= limit ) |
| { |
| FT_ERROR(( "parse_encoding: out of bounds\n" )); |
| parser->root.error = FT_THROW( Invalid_File_Format ); |
| return; |
| } |
| |
| /* if we have a number or `[', the encoding is an array, */ |
| /* and we must load it now */ |
| if ( ft_isdigit( *cur ) || *cur == '[' ) |
| { |
| T1_Encoding encode = &face->type1.encoding; |
| FT_Int count, n; |
| PS_Table char_table = &loader->encoding_table; |
| FT_Memory memory = parser->root.memory; |
| FT_Error error; |
| FT_Bool only_immediates = 0; |
| |
| |
| /* read the number of entries in the encoding; should be 256 */ |
| if ( *cur == '[' ) |
| { |
| count = 256; |
| only_immediates = 1; |
| parser->root.cursor++; |
| } |
| else |
| count = (FT_Int)T1_ToInt( parser ); |
| |
| T1_Skip_Spaces( parser ); |
| if ( parser->root.cursor >= limit ) |
| return; |
| |
| /* we use a T1_Table to store our charnames */ |
| loader->num_chars = encode->num_chars = count; |
| if ( FT_NEW_ARRAY( encode->char_index, count ) || |
| FT_NEW_ARRAY( encode->char_name, count ) || |
| FT_SET_ERROR( psaux->ps_table_funcs->init( |
| char_table, count, memory ) ) ) |
| { |
| parser->root.error = error; |
| return; |
| } |
| |
| /* We need to `zero' out encoding_table.elements */ |
| for ( n = 0; n < count; n++ ) |
| { |
| char* notdef = (char *)".notdef"; |
| |
| |
| (void)T1_Add_Table( char_table, n, notdef, 8 ); |
| } |
| |
| /* Now we need to read records of the form */ |
| /* */ |
| /* ... charcode /charname ... */ |
| /* */ |
| /* for each entry in our table. */ |
| /* */ |
| /* We simply look for a number followed by an immediate */ |
| /* name. Note that this ignores correctly the sequence */ |
| /* that is often seen in type1 fonts: */ |
| /* */ |
| /* 0 1 255 { 1 index exch /.notdef put } for dup */ |
| /* */ |
| /* used to clean the encoding array before anything else. */ |
| /* */ |
| /* Alternatively, if the array is directly given as */ |
| /* */ |
| /* /Encoding [ ... ] */ |
| /* */ |
| /* we only read immediates. */ |
| |
| n = 0; |
| T1_Skip_Spaces( parser ); |
| |
| while ( parser->root.cursor < limit ) |
| { |
| cur = parser->root.cursor; |
| |
| /* we stop when we encounter a `def' or `]' */ |
| if ( *cur == 'd' && cur + 3 < limit ) |
| { |
| if ( cur[1] == 'e' && |
| cur[2] == 'f' && |
| IS_PS_DELIM( cur[3] ) ) |
| { |
| FT_TRACE6(( "encoding end\n" )); |
| cur += 3; |
| break; |
| } |
| } |
| if ( *cur == ']' ) |
| { |
| FT_TRACE6(( "encoding end\n" )); |
| cur++; |
| break; |
| } |
| |
| /* check whether we've found an entry */ |
| if ( ft_isdigit( *cur ) || only_immediates ) |
| { |
| FT_Int charcode; |
| |
| |
| if ( only_immediates ) |
| charcode = n; |
| else |
| { |
| charcode = (FT_Int)T1_ToInt( parser ); |
| T1_Skip_Spaces( parser ); |
| |
| /* protect against invalid charcode */ |
| if ( cur == parser->root.cursor ) |
| { |
| parser->root.error = FT_THROW( Unknown_File_Format ); |
| return; |
| } |
| } |
| |
| cur = parser->root.cursor; |
| |
| if ( cur + 2 < limit && *cur == '/' && n < count ) |
| { |
| FT_UInt len; |
| |
| |
| cur++; |
| |
| parser->root.cursor = cur; |
| T1_Skip_PS_Token( parser ); |
| if ( parser->root.cursor >= limit ) |
| return; |
| if ( parser->root.error ) |
| return; |
| |
| len = (FT_UInt)( parser->root.cursor - cur ); |
| |
| parser->root.error = T1_Add_Table( char_table, charcode, |
| cur, len + 1 ); |
| if ( parser->root.error ) |
| return; |
| char_table->elements[charcode][len] = '\0'; |
| |
| n++; |
| } |
| else if ( only_immediates ) |
| { |
| /* Since the current position is not updated for */ |
| /* immediates-only mode we would get an infinite loop if */ |
| /* we don't do anything here. */ |
| /* */ |
| /* This encoding array is not valid according to the type1 */ |
| /* specification (it might be an encoding for a CID type1 */ |
| /* font, however), so we conclude that this font is NOT a */ |
| /* type1 font. */ |
| parser->root.error = FT_THROW( Unknown_File_Format ); |
| return; |
| } |
| } |
| else |
| { |
| T1_Skip_PS_Token( parser ); |
| if ( parser->root.error ) |
| return; |
| } |
| |
| T1_Skip_Spaces( parser ); |
| } |
| |
| face->type1.encoding_type = T1_ENCODING_TYPE_ARRAY; |
| parser->root.cursor = cur; |
| } |
| |
| /* Otherwise, we should have either `StandardEncoding', */ |
| /* `ExpertEncoding', or `ISOLatin1Encoding' */ |
| else |
| { |
| if ( cur + 17 < limit && |
| ft_strncmp( (const char*)cur, "StandardEncoding", 16 ) == 0 ) |
| face->type1.encoding_type = T1_ENCODING_TYPE_STANDARD; |
| |
| else if ( cur + 15 < limit && |
| ft_strncmp( (const char*)cur, "ExpertEncoding", 14 ) == 0 ) |
| face->type1.encoding_type = T1_ENCODING_TYPE_EXPERT; |
| |
| else if ( cur + 18 < limit && |
| ft_strncmp( (const char*)cur, "ISOLatin1Encoding", 17 ) == 0 ) |
| face->type1.encoding_type = T1_ENCODING_TYPE_ISOLATIN1; |
| |
| else |
| parser->root.error = FT_ERR( Ignore ); |
| } |
| } |
| |
| |
| static void |
| parse_subrs( T1_Face face, |
| T1_Loader loader ) |
| { |
| T1_Parser parser = &loader->parser; |
| PS_Table table = &loader->subrs; |
| FT_Memory memory = parser->root.memory; |
| FT_Error error; |
| FT_Int num_subrs; |
| |
| PSAux_Service psaux = (PSAux_Service)face->psaux; |
| |
| |
| T1_Skip_Spaces( parser ); |
| |
| /* test for empty array */ |
| if ( parser->root.cursor < parser->root.limit && |
| *parser->root.cursor == '[' ) |
| { |
| T1_Skip_PS_Token( parser ); |
| T1_Skip_Spaces ( parser ); |
| if ( parser->root.cursor >= parser->root.limit || |
| *parser->root.cursor != ']' ) |
| parser->root.error = FT_THROW( Invalid_File_Format ); |
| return; |
| } |
| |
| num_subrs = (FT_Int)T1_ToInt( parser ); |
| |
| /* position the parser right before the `dup' of the first subr */ |
| T1_Skip_PS_Token( parser ); /* `array' */ |
| if ( parser->root.error ) |
| return; |
| T1_Skip_Spaces( parser ); |
| |
| /* initialize subrs array -- with synthetic fonts it is possible */ |
| /* we get here twice */ |
| if ( !loader->num_subrs ) |
| { |
| error = psaux->ps_table_funcs->init( table, num_subrs, memory ); |
| if ( error ) |
| goto Fail; |
| } |
| |
| /* the format is simple: */ |
| /* */ |
| /* `index' + binary data */ |
| /* */ |
| for (;;) |
| { |
| FT_Long idx; |
| FT_ULong size; |
| FT_Byte* base; |
| |
| |
| /* If we are out of data, or if the next token isn't `dup', */ |
| /* we are done. */ |
| if ( parser->root.cursor + 4 >= parser->root.limit || |
| ft_strncmp( (char*)parser->root.cursor, "dup", 3 ) != 0 ) |
| break; |
| |
| T1_Skip_PS_Token( parser ); /* `dup' */ |
| |
| idx = T1_ToInt( parser ); |
| |
| if ( !read_binary_data( parser, &size, &base, IS_INCREMENTAL ) ) |
| return; |
| |
| /* The binary string is followed by one token, e.g. `NP' */ |
| /* (bound to `noaccess put') or by two separate tokens: */ |
| /* `noaccess' & `put'. We position the parser right */ |
| /* before the next `dup', if any. */ |
| T1_Skip_PS_Token( parser ); /* `NP' or `|' or `noaccess' */ |
| if ( parser->root.error ) |
| return; |
| T1_Skip_Spaces ( parser ); |
| |
| if ( parser->root.cursor + 4 < parser->root.limit && |
| ft_strncmp( (char*)parser->root.cursor, "put", 3 ) == 0 ) |
| { |
| T1_Skip_PS_Token( parser ); /* skip `put' */ |
| T1_Skip_Spaces ( parser ); |
| } |
| |
| /* with synthetic fonts it is possible we get here twice */ |
| if ( loader->num_subrs ) |
| continue; |
| |
| /* some fonts use a value of -1 for lenIV to indicate that */ |
| /* the charstrings are unencoded */ |
| /* */ |
| /* thanks to Tom Kacvinsky for pointing this out */ |
| /* */ |
| if ( face->type1.private_dict.lenIV >= 0 ) |
| { |
| FT_Byte* temp; |
| |
| |
| /* some fonts define empty subr records -- this is not totally */ |
| /* compliant to the specification (which says they should at */ |
| /* least contain a `return'), but we support them anyway */ |
| if ( size < (FT_ULong)face->type1.private_dict.lenIV ) |
| { |
| error = FT_THROW( Invalid_File_Format ); |
| goto Fail; |
| } |
| |
| /* t1_decrypt() shouldn't write to base -- make temporary copy */ |
| if ( FT_ALLOC( temp, size ) ) |
| goto Fail; |
| FT_MEM_COPY( temp, base, size ); |
| psaux->t1_decrypt( temp, size, 4330 ); |
| size -= (FT_ULong)face->type1.private_dict.lenIV; |
| error = T1_Add_Table( table, (FT_Int)idx, |
| temp + face->type1.private_dict.lenIV, size ); |
| FT_FREE( temp ); |
| } |
| else |
| error = T1_Add_Table( table, (FT_Int)idx, base, size ); |
| if ( error ) |
| goto Fail; |
| } |
| |
| if ( !loader->num_subrs ) |
| loader->num_subrs = num_subrs; |
| |
| return; |
| |
| Fail: |
| parser->root.error = error; |
| } |
| |
| |
| #define TABLE_EXTEND 5 |
| |
| |
| static void |
| parse_charstrings( T1_Face face, |
| T1_Loader loader ) |
| { |
| T1_Parser parser = &loader->parser; |
| PS_Table code_table = &loader->charstrings; |
| PS_Table name_table = &loader->glyph_names; |
| PS_Table swap_table = &loader->swap_table; |
| FT_Memory memory = parser->root.memory; |
| FT_Error error; |
| |
| PSAux_Service psaux = (PSAux_Service)face->psaux; |
| |
| FT_Byte* cur; |
| FT_Byte* limit = parser->root.limit; |
| FT_Int n, num_glyphs; |
| FT_Int notdef_index = 0; |
| FT_Byte notdef_found = 0; |
| |
| |
| num_glyphs = (FT_Int)T1_ToInt( parser ); |
| if ( num_glyphs < 0 ) |
| { |
| error = FT_THROW( Invalid_File_Format ); |
| goto Fail; |
| } |
| |
| /* some fonts like Optima-Oblique not only define the /CharStrings */ |
| /* array but access it also */ |
| if ( num_glyphs == 0 || parser->root.error ) |
| return; |
| |
| /* initialize tables, leaving space for addition of .notdef, */ |
| /* if necessary, and a few other glyphs to handle buggy */ |
| /* fonts which have more glyphs than specified. */ |
| |
| /* for some non-standard fonts like `Optima' which provides */ |
| /* different outlines depending on the resolution it is */ |
| /* possible to get here twice */ |
| if ( !loader->num_glyphs ) |
| { |
| error = psaux->ps_table_funcs->init( |
| code_table, num_glyphs + 1 + TABLE_EXTEND, memory ); |
| if ( error ) |
| goto Fail; |
| |
| error = psaux->ps_table_funcs->init( |
| name_table, num_glyphs + 1 + TABLE_EXTEND, memory ); |
| if ( error ) |
| goto Fail; |
| |
| /* Initialize table for swapping index notdef_index and */ |
| /* index 0 names and codes (if necessary). */ |
| |
| error = psaux->ps_table_funcs->init( swap_table, 4, memory ); |
| if ( error ) |
| goto Fail; |
| } |
| |
| n = 0; |
| |
| for (;;) |
| { |
| FT_ULong size; |
| FT_Byte* base; |
| |
| |
| /* the format is simple: */ |
| /* `/glyphname' + binary data */ |
| |
| T1_Skip_Spaces( parser ); |
| |
| cur = parser->root.cursor; |
| if ( cur >= limit ) |
| break; |
| |
| /* we stop when we find a `def' or `end' keyword */ |
| if ( cur + 3 < limit && IS_PS_DELIM( cur[3] ) ) |
| { |
| if ( cur[0] == 'd' && |
| cur[1] == 'e' && |
| cur[2] == 'f' ) |
| { |
| /* There are fonts which have this: */ |
| /* */ |
| /* /CharStrings 118 dict def */ |
| /* Private begin */ |
| /* CharStrings begin */ |
| /* ... */ |
| /* */ |
| /* To catch this we ignore `def' if */ |
| /* no charstring has actually been */ |
| /* seen. */ |
| if ( n ) |
| break; |
| } |
| |
| if ( cur[0] == 'e' && |
| cur[1] == 'n' && |
| cur[2] == 'd' ) |
| break; |
| } |
| |
| T1_Skip_PS_Token( parser ); |
| if ( parser->root.cursor >= limit ) |
| { |
| error = FT_THROW( Invalid_File_Format ); |
| goto Fail; |
| } |
| if ( parser->root.error ) |
| return; |
| |
| if ( *cur == '/' ) |
| { |
| FT_UInt len; |
| |
| |
| if ( cur + 2 >= limit ) |
| { |
| error = FT_THROW( Invalid_File_Format ); |
| goto Fail; |
| } |
| |
| cur++; /* skip `/' */ |
| len = (FT_UInt)( parser->root.cursor - cur ); |
| |
| if ( !read_binary_data( parser, &size, &base, IS_INCREMENTAL ) ) |
| return; |
| |
| /* for some non-standard fonts like `Optima' which provides */ |
| /* different outlines depending on the resolution it is */ |
| /* possible to get here twice */ |
| if ( loader->num_glyphs ) |
| continue; |
| |
| error = T1_Add_Table( name_table, n, cur, len + 1 ); |
| if ( error ) |
| goto Fail; |
| |
| /* add a trailing zero to the name table */ |
| name_table->elements[n][len] = '\0'; |
| |
| /* record index of /.notdef */ |
| if ( *cur == '.' && |
| ft_strcmp( ".notdef", |
| (const char*)(name_table->elements[n]) ) == 0 ) |
| { |
| notdef_index = n; |
| notdef_found = 1; |
| } |
| |
| if ( face->type1.private_dict.lenIV >= 0 && |
| n < num_glyphs + TABLE_EXTEND ) |
| { |
| FT_Byte* temp; |
| |
| |
| if ( size <= (FT_ULong)face->type1.private_dict.lenIV ) |
| { |
| error = FT_THROW( Invalid_File_Format ); |
| goto Fail; |
| } |
| |
| /* t1_decrypt() shouldn't write to base -- make temporary copy */ |
| if ( FT_ALLOC( temp, size ) ) |
| goto Fail; |
| FT_MEM_COPY( temp, base, size ); |
| psaux->t1_decrypt( temp, size, 4330 ); |
| size -= (FT_ULong)face->type1.private_dict.lenIV; |
| error = T1_Add_Table( code_table, n, |
| temp + face->type1.private_dict.lenIV, size ); |
| FT_FREE( temp ); |
| } |
| else |
| error = T1_Add_Table( code_table, n, base, size ); |
| if ( error ) |
| goto Fail; |
| |
| n++; |
| } |
| } |
| |
| loader->num_glyphs = n; |
| |
| /* if /.notdef is found but does not occupy index 0, do our magic. */ |
| if ( notdef_found && |
| ft_strcmp( ".notdef", (const char*)name_table->elements[0] ) ) |
| { |
| /* Swap glyph in index 0 with /.notdef glyph. First, add index 0 */ |
| /* name and code entries to swap_table. Then place notdef_index */ |
| /* name and code entries into swap_table. Then swap name and code */ |
| /* entries at indices notdef_index and 0 using values stored in */ |
| /* swap_table. */ |
| |
| /* Index 0 name */ |
| error = T1_Add_Table( swap_table, 0, |
| name_table->elements[0], |
| name_table->lengths [0] ); |
| if ( error ) |
| goto Fail; |
| |
| /* Index 0 code */ |
| error = T1_Add_Table( swap_table, 1, |
| code_table->elements[0], |
| code_table->lengths [0] ); |
| if ( error ) |
| goto Fail; |
| |
| /* Index notdef_index name */ |
| error = T1_Add_Table( swap_table, 2, |
| name_table->elements[notdef_index], |
| name_table->lengths [notdef_index] ); |
| if ( error ) |
| goto Fail; |
| |
| /* Index notdef_index code */ |
| error = T1_Add_Table( swap_table, 3, |
| code_table->elements[notdef_index], |
| code_table->lengths [notdef_index] ); |
| if ( error ) |
| goto Fail; |
| |
| error = T1_Add_Table( name_table, notdef_index, |
| swap_table->elements[0], |
| swap_table->lengths [0] ); |
| if ( error ) |
| goto Fail; |
| |
| error = T1_Add_Table( code_table, notdef_index, |
| swap_table->elements[1], |
| swap_table->lengths [1] ); |
| if ( error ) |
| goto Fail; |
| |
| error = T1_Add_Table( name_table, 0, |
| swap_table->elements[2], |
| swap_table->lengths [2] ); |
| if ( error ) |
| goto Fail; |
| |
| error = T1_Add_Table( code_table, 0, |
| swap_table->elements[3], |
| swap_table->lengths [3] ); |
| if ( error ) |
| goto Fail; |
| |
| } |
| else if ( !notdef_found ) |
| { |
| /* notdef_index is already 0, or /.notdef is undefined in */ |
| /* charstrings dictionary. Worry about /.notdef undefined. */ |
| /* We take index 0 and add it to the end of the table(s) */ |
| /* and add our own /.notdef glyph to index 0. */ |
| |
| /* 0 333 hsbw endchar */ |
| FT_Byte notdef_glyph[] = { 0x8B, 0xF7, 0xE1, 0x0D, 0x0E }; |
| char* notdef_name = (char *)".notdef"; |
| |
| |
| error = T1_Add_Table( swap_table, 0, |
| name_table->elements[0], |
| name_table->lengths [0] ); |
| if ( error ) |
| goto Fail; |
| |
| error = T1_Add_Table( swap_table, 1, |
| code_table->elements[0], |
| code_table->lengths [0] ); |
| if ( error ) |
| goto Fail; |
| |
| error = T1_Add_Table( name_table, 0, notdef_name, 8 ); |
| if ( error ) |
| goto Fail; |
| |
| error = T1_Add_Table( code_table, 0, notdef_glyph, 5 ); |
| |
| if ( error ) |
| goto Fail; |
| |
| error = T1_Add_Table( name_table, n, |
| swap_table->elements[0], |
| swap_table->lengths [0] ); |
| if ( error ) |
| goto Fail; |
| |
| error = T1_Add_Table( code_table, n, |
| swap_table->elements[1], |
| swap_table->lengths [1] ); |
| if ( error ) |
| goto Fail; |
| |
| /* we added a glyph. */ |
| loader->num_glyphs += 1; |
| } |
| |
| return; |
| |
| Fail: |
| parser->root.error = error; |
| } |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* Define the token field static variables. This is a set of */ |
| /* T1_FieldRec variables. */ |
| /* */ |
| /*************************************************************************/ |
| |
| |
| static |
| const T1_FieldRec t1_keywords[] = |
| { |
| |
| #include "t1tokens.h" |
| |
| /* now add the special functions... */ |
| T1_FIELD_CALLBACK( "FontMatrix", t1_parse_font_matrix, |
| T1_FIELD_DICT_FONTDICT ) |
| T1_FIELD_CALLBACK( "Encoding", parse_encoding, |
| T1_FIELD_DICT_FONTDICT ) |
| T1_FIELD_CALLBACK( "Subrs", parse_subrs, |
| T1_FIELD_DICT_PRIVATE ) |
| T1_FIELD_CALLBACK( "CharStrings", parse_charstrings, |
| T1_FIELD_DICT_PRIVATE ) |
| T1_FIELD_CALLBACK( "Private", parse_private, |
| T1_FIELD_DICT_FONTDICT ) |
| |
| #ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT |
| T1_FIELD_CALLBACK( "BlendDesignPositions", parse_blend_design_positions, |
| T1_FIELD_DICT_FONTDICT ) |
| T1_FIELD_CALLBACK( "BlendDesignMap", parse_blend_design_map, |
| T1_FIELD_DICT_FONTDICT ) |
| T1_FIELD_CALLBACK( "BlendAxisTypes", parse_blend_axis_types, |
| T1_FIELD_DICT_FONTDICT ) |
| T1_FIELD_CALLBACK( "WeightVector", parse_weight_vector, |
| T1_FIELD_DICT_FONTDICT ) |
| T1_FIELD_CALLBACK( "BuildCharArray", parse_buildchar, |
| T1_FIELD_DICT_PRIVATE ) |
| #endif |
| |
| { 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0, 0 } |
| }; |
| |
| |
| static FT_Error |
| parse_dict( T1_Face face, |
| T1_Loader loader, |
| FT_Byte* base, |
| FT_ULong size ) |
| { |
| T1_Parser parser = &loader->parser; |
| FT_Byte *limit, *start_binary = NULL; |
| FT_Bool have_integer = 0; |
| |
| |
| parser->root.cursor = base; |
| parser->root.limit = base + size; |
| parser->root.error = FT_Err_Ok; |
| |
| limit = parser->root.limit; |
| |
| T1_Skip_Spaces( parser ); |
| |
| while ( parser->root.cursor < limit ) |
| { |
| FT_Byte* cur; |
| |
| |
| cur = parser->root.cursor; |
| |
| /* look for `eexec' */ |
| if ( IS_PS_TOKEN( cur, limit, "eexec" ) ) |
| break; |
| |
| /* look for `closefile' which ends the eexec section */ |
| else if ( IS_PS_TOKEN( cur, limit, "closefile" ) ) |
| break; |
| |
| /* in a synthetic font the base font starts after a */ |
| /* `FontDictionary' token that is placed after a Private dict */ |
| else if ( IS_PS_TOKEN( cur, limit, "FontDirectory" ) ) |
| { |
| if ( loader->keywords_encountered & T1_PRIVATE ) |
| loader->keywords_encountered |= |
| T1_FONTDIR_AFTER_PRIVATE; |
| parser->root.cursor += 13; |
| } |
| |
| /* check whether we have an integer */ |
| else if ( ft_isdigit( *cur ) ) |
| { |
| start_binary = cur; |
| T1_Skip_PS_Token( parser ); |
| if ( parser->root.error ) |
| goto Exit; |
| have_integer = 1; |
| } |
| |
| /* in valid Type 1 fonts we don't see `RD' or `-|' directly */ |
| /* since those tokens are handled by parse_subrs and */ |
| /* parse_charstrings */ |
| else if ( *cur == 'R' && cur + 6 < limit && *(cur + 1) == 'D' && |
| have_integer ) |
| { |
| FT_ULong s; |
| FT_Byte* b; |
| |
| |
| parser->root.cursor = start_binary; |
| if ( !read_binary_data( parser, &s, &b, IS_INCREMENTAL ) ) |
| return FT_THROW( Invalid_File_Format ); |
| have_integer = 0; |
| } |
| |
| else if ( *cur == '-' && cur + 6 < limit && *(cur + 1) == '|' && |
| have_integer ) |
| { |
| FT_ULong s; |
| FT_Byte* b; |
| |
| |
| parser->root.cursor = start_binary; |
| if ( !read_binary_data( parser, &s, &b, IS_INCREMENTAL ) ) |
| return FT_THROW( Invalid_File_Format ); |
| have_integer = 0; |
| } |
| |
| /* look for immediates */ |
| else if ( *cur == '/' && cur + 2 < limit ) |
| { |
| FT_UInt len; |
| |
| |
| cur++; |
| |
| parser->root.cursor = cur; |
| T1_Skip_PS_Token( parser ); |
| if ( parser->root.error ) |
| goto Exit; |
| |
| len = (FT_UInt)( parser->root.cursor - cur ); |
| |
| if ( len > 0 && len < 22 && parser->root.cursor < limit ) |
| { |
| /* now compare the immediate name to the keyword table */ |
| T1_Field keyword = (T1_Field)t1_keywords; |
| |
| |
| for (;;) |
| { |
| FT_Byte* name; |
| |
| |
| name = (FT_Byte*)keyword->ident; |
| if ( !name ) |
| break; |
| |
| if ( cur[0] == name[0] && |
| len == ft_strlen( (const char *)name ) && |
| ft_memcmp( cur, name, len ) == 0 ) |
| { |
| /* We found it -- run the parsing callback! */ |
| /* We record every instance of every field */ |
| /* (until we reach the base font of a */ |
| /* synthetic font) to deal adequately with */ |
| /* multiple master fonts; this is also */ |
| /* necessary because later PostScript */ |
| /* definitions override earlier ones. */ |
| |
| /* Once we encounter `FontDirectory' after */ |
| /* `/Private', we know that this is a synthetic */ |
| /* font; except for `/CharStrings' we are not */ |
| /* interested in anything that follows this */ |
| /* `FontDirectory'. */ |
| |
| /* MM fonts have more than one /Private token at */ |
| /* the top level; let's hope that all the junk */ |
| /* that follows the first /Private token is not */ |
| /* interesting to us. */ |
| |
| /* According to Adobe Tech Note #5175 (CID-Keyed */ |
| /* Font Installation for ATM Software) a `begin' */ |
| /* must be followed by exactly one `end', and */ |
| /* `begin' -- `end' pairs must be accurately */ |
| /* paired. We could use this to distinguish */ |
| /* between the global Private and the Private */ |
| /* dict that is a member of the Blend dict. */ |
| |
| const FT_UInt dict = |
| ( loader->keywords_encountered & T1_PRIVATE ) |
| ? T1_FIELD_DICT_PRIVATE |
| : T1_FIELD_DICT_FONTDICT; |
| |
| if ( !( dict & keyword->dict ) ) |
| { |
| FT_TRACE1(( "parse_dict: found `%s' but ignoring it" |
| " since it is in the wrong dictionary\n", |
| keyword->ident )); |
| break; |
| } |
| |
| if ( !( loader->keywords_encountered & |
| T1_FONTDIR_AFTER_PRIVATE ) || |
| ft_strcmp( (const char*)name, "CharStrings" ) == 0 ) |
| { |
| parser->root.error = t1_load_keyword( face, |
| loader, |
| keyword ); |
| if ( parser->root.error != FT_Err_Ok ) |
| { |
| if ( FT_ERR_EQ( parser->root.error, Ignore ) ) |
| parser->root.error = FT_Err_Ok; |
| else |
| return parser->root.error; |
| } |
| } |
| break; |
| } |
| |
| keyword++; |
| } |
| } |
| |
| have_integer = 0; |
| } |
| else |
| { |
| T1_Skip_PS_Token( parser ); |
| if ( parser->root.error ) |
| goto Exit; |
| have_integer = 0; |
| } |
| |
| T1_Skip_Spaces( parser ); |
| } |
| |
| Exit: |
| return parser->root.error; |
| } |
| |
| |
| static void |
| t1_init_loader( T1_Loader loader, |
| T1_Face face ) |
| { |
| FT_UNUSED( face ); |
| |
| FT_MEM_ZERO( loader, sizeof ( *loader ) ); |
| loader->num_glyphs = 0; |
| loader->num_chars = 0; |
| |
| /* initialize the tables -- simply set their `init' field to 0 */ |
| loader->encoding_table.init = 0; |
| loader->charstrings.init = 0; |
| loader->glyph_names.init = 0; |
| loader->subrs.init = 0; |
| loader->swap_table.init = 0; |
| loader->fontdata = 0; |
| loader->keywords_encountered = 0; |
| } |
| |
| |
| static void |
| t1_done_loader( T1_Loader loader ) |
| { |
| T1_Parser parser = &loader->parser; |
| |
| |
| /* finalize tables */ |
| T1_Release_Table( &loader->encoding_table ); |
| T1_Release_Table( &loader->charstrings ); |
| T1_Release_Table( &loader->glyph_names ); |
| T1_Release_Table( &loader->swap_table ); |
| T1_Release_Table( &loader->subrs ); |
| |
| /* finalize parser */ |
| T1_Finalize_Parser( parser ); |
| } |
| |
| |
| FT_LOCAL_DEF( FT_Error ) |
| T1_Open_Face( T1_Face face ) |
| { |
| T1_LoaderRec loader; |
| T1_Parser parser; |
| T1_Font type1 = &face->type1; |
| PS_Private priv = &type1->private_dict; |
| FT_Error error; |
| |
| PSAux_Service psaux = (PSAux_Service)face->psaux; |
| |
| |
| t1_init_loader( &loader, face ); |
| |
| /* default values */ |
| face->ndv_idx = -1; |
| face->cdv_idx = -1; |
| face->len_buildchar = 0; |
| |
| priv->blue_shift = 7; |
| priv->blue_fuzz = 1; |
| priv->lenIV = 4; |
| priv->expansion_factor = (FT_Fixed)( 0.06 * 0x10000L ); |
| priv->blue_scale = (FT_Fixed)( 0.039625 * 0x10000L * 1000 ); |
| |
| parser = &loader.parser; |
| error = T1_New_Parser( parser, |
| face->root.stream, |
| face->root.memory, |
| psaux ); |
| if ( error ) |
| goto Exit; |
| |
| error = parse_dict( face, &loader, |
| parser->base_dict, parser->base_len ); |
| if ( error ) |
| goto Exit; |
| |
| error = T1_Get_Private_Dict( parser, psaux ); |
| if ( error ) |
| goto Exit; |
| |
| error = parse_dict( face, &loader, |
| parser->private_dict, parser->private_len ); |
| if ( error ) |
| goto Exit; |
| |
| /* ensure even-ness of `num_blue_values' */ |
| priv->num_blue_values &= ~1; |
| |
| #ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT |
| |
| if ( face->blend && |
| face->blend->num_default_design_vector != 0 && |
| face->blend->num_default_design_vector != face->blend->num_axis ) |
| { |
| /* we don't use it currently so just warn, reset, and ignore */ |
| FT_ERROR(( "T1_Open_Face(): /DesignVector contains %u entries " |
| "while there are %u axes.\n", |
| face->blend->num_default_design_vector, |
| face->blend->num_axis )); |
| |
| face->blend->num_default_design_vector = 0; |
| } |
| |
| /* the following can happen for MM instances; we then treat the */ |
| /* font as a normal PS font */ |
| if ( face->blend && |
| ( !face->blend->num_designs || !face->blend->num_axis ) ) |
| T1_Done_Blend( face ); |
| |
| /* another safety check */ |
| if ( face->blend ) |
| { |
| FT_UInt i; |
| |
| |
| for ( i = 0; i < face->blend->num_axis; i++ ) |
| if ( !face->blend->design_map[i].num_points ) |
| { |
| T1_Done_Blend( face ); |
| break; |
| } |
| } |
| |
| if ( face->blend ) |
| { |
| if ( face->len_buildchar > 0 ) |
| { |
| FT_Memory memory = face->root.memory; |
| |
| |
| if ( FT_NEW_ARRAY( face->buildchar, face->len_buildchar ) ) |
| { |
| FT_ERROR(( "T1_Open_Face: cannot allocate BuildCharArray\n" )); |
| face->len_buildchar = 0; |
| goto Exit; |
| } |
| } |
| } |
| else |
| face->len_buildchar = 0; |
| |
| #endif /* !T1_CONFIG_OPTION_NO_MM_SUPPORT */ |
| |
| /* now, propagate the subrs, charstrings, and glyphnames tables */ |
| /* to the Type1 data */ |
| type1->num_glyphs = loader.num_glyphs; |
| |
| if ( loader.subrs.init ) |
| { |
| loader.subrs.init = 0; |
| type1->num_subrs = loader.num_subrs; |
| type1->subrs_block = loader.subrs.block; |
| type1->subrs = loader.subrs.elements; |
| type1->subrs_len = loader.subrs.lengths; |
| } |
| |
| if ( !IS_INCREMENTAL ) |
| if ( !loader.charstrings.init ) |
| { |
| FT_ERROR(( "T1_Open_Face: no `/CharStrings' array in face\n" )); |
| error = FT_THROW( Invalid_File_Format ); |
| } |
| |
| loader.charstrings.init = 0; |
| type1->charstrings_block = loader.charstrings.block; |
| type1->charstrings = loader.charstrings.elements; |
| type1->charstrings_len = loader.charstrings.lengths; |
| |
| /* we copy the glyph names `block' and `elements' fields; */ |
| /* the `lengths' field must be released later */ |
| type1->glyph_names_block = loader.glyph_names.block; |
| type1->glyph_names = (FT_String**)loader.glyph_names.elements; |
| loader.glyph_names.block = NULL; |
| loader.glyph_names.elements = NULL; |
| |
| /* we must now build type1.encoding when we have a custom array */ |
| if ( type1->encoding_type == T1_ENCODING_TYPE_ARRAY ) |
| { |
| FT_Int charcode, idx, min_char, max_char; |
| FT_Byte* glyph_name; |
| |
| |
| /* OK, we do the following: for each element in the encoding */ |
| /* table, look up the index of the glyph having the same name */ |
| /* the index is then stored in type1.encoding.char_index, and */ |
| /* the name to type1.encoding.char_name */ |
| |
| min_char = 0; |
| max_char = 0; |
| |
| charcode = 0; |
| for ( ; charcode < loader.encoding_table.max_elems; charcode++ ) |
| { |
| FT_Byte* char_name; |
| |
| |
| type1->encoding.char_index[charcode] = 0; |
| type1->encoding.char_name [charcode] = (char *)".notdef"; |
| |
| char_name = loader.encoding_table.elements[charcode]; |
| if ( char_name ) |
| for ( idx = 0; idx < type1->num_glyphs; idx++ ) |
| { |
| glyph_name = (FT_Byte*)type1->glyph_names[idx]; |
| if ( ft_strcmp( (const char*)char_name, |
| (const char*)glyph_name ) == 0 ) |
| { |
| type1->encoding.char_index[charcode] = (FT_UShort)idx; |
| type1->encoding.char_name [charcode] = (char*)glyph_name; |
| |
| /* Change min/max encoded char only if glyph name is */ |
| /* not /.notdef */ |
| if ( ft_strcmp( (const char*)".notdef", |
| (const char*)glyph_name ) != 0 ) |
| { |
| if ( charcode < min_char ) |
| min_char = charcode; |
| if ( charcode >= max_char ) |
| max_char = charcode + 1; |
| } |
| break; |
| } |
| } |
| } |
| |
| type1->encoding.code_first = min_char; |
| type1->encoding.code_last = max_char; |
| type1->encoding.num_chars = loader.num_chars; |
| } |
| |
| Exit: |
| t1_done_loader( &loader ); |
| return error; |
| } |
| |
| |
| /* END */ |
