diff options
Diffstat (limited to 'freetype/src/psaux/psobjs.c')
-rw-r--r-- | freetype/src/psaux/psobjs.c | 486 |
1 files changed, 276 insertions, 210 deletions
diff --git a/freetype/src/psaux/psobjs.c b/freetype/src/psaux/psobjs.c index f54bc7e4..8bfdb923 100644 --- a/freetype/src/psaux/psobjs.c +++ b/freetype/src/psaux/psobjs.c @@ -1,19 +1,19 @@ -/***************************************************************************/ -/* */ -/* psobjs.c */ -/* */ -/* Auxiliary functions for PostScript fonts (body). */ -/* */ -/* Copyright 1996-2018 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. */ -/* */ -/***************************************************************************/ +/**************************************************************************** + * + * psobjs.c + * + * Auxiliary functions for PostScript fonts (body). + * + * Copyright (C) 1996-2019 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> @@ -29,14 +29,14 @@ #include "psauxmod.h" - /*************************************************************************/ - /* */ - /* 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. */ - /* */ + /************************************************************************** + * + * 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_psobjs +#define FT_COMPONENT psobjs /*************************************************************************/ @@ -47,26 +47,29 @@ /*************************************************************************/ /*************************************************************************/ - /*************************************************************************/ - /* */ - /* <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. */ - /* */ + /************************************************************************** + * + * @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, @@ -144,33 +147,37 @@ } - /*************************************************************************/ - /* */ - /* <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. */ - /* */ + /************************************************************************** + * + * @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_UInt length ) + ps_table_add( PS_Table table, + FT_Int idx, + const void* object, + FT_UInt length ) { if ( idx < 0 || idx >= table->max_elems ) { @@ -216,22 +223,23 @@ } - /*************************************************************************/ - /* */ - /* <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. */ - /* */ + /************************************************************************** + * + * @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 ) { @@ -498,12 +506,12 @@ } - /***********************************************************************/ - /* */ - /* All exported parsing routines handle leading whitespace and stop at */ - /* the first character which isn't part of the just handled token. */ - /* */ - /***********************************************************************/ + /************************************************************************ + * + * 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 ) @@ -1100,18 +1108,22 @@ { case T1_FIELD_TYPE_BOOL: val = ps_tobool( &cur, limit ); + FT_TRACE4(( " %s", val ? "true" : "false" )); goto Store_Integer; case T1_FIELD_TYPE_FIXED: val = PS_Conv_ToFixed( &cur, limit, 0 ); + FT_TRACE4(( " %f", (double)val / 65536 )); goto Store_Integer; case T1_FIELD_TYPE_FIXED_1000: val = PS_Conv_ToFixed( &cur, limit, 3 ); + FT_TRACE4(( " %f", (double)val / 65536 / 1000 )); goto Store_Integer; case T1_FIELD_TYPE_INTEGER: val = PS_Conv_ToInt( &cur, limit ); + FT_TRACE4(( " %ld", val )); /* fall through */ Store_Integer: @@ -1188,6 +1200,13 @@ FT_MEM_COPY( string, cur, len ); string[len] = 0; +#ifdef FT_DEBUG_LEVEL_TRACE + if ( token.type == T1_TOKEN_TYPE_STRING ) + FT_TRACE4(( " (%s)", string )); + else + FT_TRACE4(( " /%s", string )); +#endif + *(FT_String**)q = string; } break; @@ -1213,6 +1232,12 @@ bbox->yMin = FT_RoundFix( temp[1] ); bbox->xMax = FT_RoundFix( temp[2] ); bbox->yMax = FT_RoundFix( temp[3] ); + + FT_TRACE4(( " [%d %d %d %d]", + bbox->xMin / 65536, + bbox->yMin / 65536, + bbox->xMax / 65536, + bbox->yMax / 65536 )); } break; @@ -1251,6 +1276,7 @@ skip_spaces( &cur, limit ); } + FT_TRACE4(( " [" )); for ( i = 0; i < max_objects; i++ ) { FT_BBox* bbox = (FT_BBox*)objects[i]; @@ -1260,7 +1286,14 @@ bbox->yMin = FT_RoundFix( temp[i + max_objects] ); bbox->xMax = FT_RoundFix( temp[i + 2 * max_objects] ); bbox->yMax = FT_RoundFix( temp[i + 3 * max_objects] ); + + FT_TRACE4(( " [%d %d %d %d]", + bbox->xMin / 65536, + bbox->yMin / 65536, + bbox->xMax / 65536, + bbox->yMax / 65536 )); } + FT_TRACE4(( "]" )); FT_FREE( temp ); } @@ -1333,6 +1366,8 @@ *(FT_Byte*)( (FT_Byte*)objects[0] + field->count_offset ) = (FT_Byte)num_elements; + FT_TRACE4(( " [" )); + /* we now load each element, adjusting the field.offset on each one */ token = elements; for ( ; num_elements > 0; num_elements--, token++ ) @@ -1351,6 +1386,8 @@ fieldrec.offset += fieldrec.size; } + FT_TRACE4(( "]" )); + #if 0 /* obsolete -- keep for reference */ if ( pflags ) *pflags |= 1L << field->flag_bit; @@ -1410,6 +1447,8 @@ bytes, max_bytes ); + parser->cursor = cur; + if ( delimiters ) { if ( cur < parser->limit && *cur != '>' ) @@ -1419,11 +1458,9 @@ goto Exit; } - cur++; + parser->cursor++; } - parser->cursor = cur; - Exit: return error; } @@ -1509,26 +1546,31 @@ /*************************************************************************/ /*************************************************************************/ - /*************************************************************************/ - /* */ - /* <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. */ - /* */ + /************************************************************************** + * + * @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, @@ -1572,19 +1614,20 @@ } - /*************************************************************************/ - /* */ - /* <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. */ - /* */ + /************************************************************************** + * + * @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 ) { @@ -1769,26 +1812,31 @@ /*************************************************************************/ - /*************************************************************************/ - /* */ - /* <Function> */ - /* cff_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 is active. */ - /* */ + /************************************************************************** + * + * @Function: + * cff_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 is active. + */ FT_LOCAL_DEF( void ) cff_builder_init( CFF_Builder* builder, TT_Face face, @@ -1841,19 +1889,20 @@ } - /*************************************************************************/ - /* */ - /* <Function> */ - /* cff_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. */ - /* */ + /************************************************************************** + * + * @Function: + * cff_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 ) cff_builder_done( CFF_Builder* builder ) { @@ -1993,6 +2042,14 @@ first = outline->n_contours <= 1 ? 0 : outline->contours[outline->n_contours - 2] + 1; + /* in malformed fonts it can happen that a contour was started */ + /* but no points were added */ + if ( outline->n_contours && first == outline->n_points ) + { + outline->n_contours--; + return; + } + /* We must not include the last point in the path if it */ /* is located on the first point. */ if ( outline->n_points > 1 ) @@ -2033,26 +2090,31 @@ /*************************************************************************/ /*************************************************************************/ - /*************************************************************************/ - /* */ - /* <Function> */ - /* ps_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. */ - /* */ + /************************************************************************** + * + * @Function: + * ps_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 ) ps_builder_init( PS_Builder* ps_builder, void* builder, @@ -2116,19 +2178,20 @@ } - /*************************************************************************/ - /* */ - /* <Function> */ - /* ps_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. */ - /* */ + /************************************************************************** + * + * @Function: + * ps_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 ) ps_builder_done( PS_Builder* builder ) { @@ -2336,23 +2399,26 @@ /*************************************************************************/ - /*************************************************************************/ - /* */ - /* <Function> */ - /* ps_decoder_init */ - /* */ - /* <Description> */ - /* Creates a wrapper decoder for use in the combined */ - /* Type 1 / CFF interpreter. */ - /* */ - /* <InOut> */ - /* ps_decoder :: A pointer to the decoder to initialize. */ - /* */ - /* <Input> */ - /* decoder :: A pointer to the original decoder. */ - /* */ - /* is_t1 :: Flag indicating Type 1 or CFF */ - /* */ + /************************************************************************** + * + * @Function: + * ps_decoder_init + * + * @Description: + * Creates a wrapper decoder for use in the combined + * Type 1 / CFF interpreter. + * + * @InOut: + * ps_decoder :: + * A pointer to the decoder to initialize. + * + * @Input: + * decoder :: + * A pointer to the original decoder. + * + * is_t1 :: + * Flag indicating Type 1 or CFF + */ FT_LOCAL_DEF( void ) ps_decoder_init( PS_Decoder* ps_decoder, void* decoder, |