+++ /dev/null
-/***************************************************************************/
-/* */
-/* ttpload.c */
-/* */
-/* TrueType glyph data/program tables loader (body). */
-/* */
-/* Copyright 1996-2001 by */
-/* David Turner, Robert Wilhelm, and Werner Lemberg. */
-/* */
-/* This file is part of the FreeType project, and may only be used, */
-/* modified, and distributed under the terms of the FreeType project */
-/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
-/* this file you indicate that you have read the license and */
-/* understand and accept it fully. */
-/* */
-/***************************************************************************/
-
-
-#include <ft2build.h>
-#include FT_INTERNAL_DEBUG_H
-#include FT_INTERNAL_OBJECTS_H
-#include FT_INTERNAL_STREAM_H
-#include FT_TRUETYPE_TAGS_H
-
-#include "ttpload.h"
-
-#include "tterrors.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. */
- /* */
-#undef FT_COMPONENT
-#define FT_COMPONENT trace_ttpload
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* TT_Load_Locations */
- /* */
- /* <Description> */
- /* Loads the locations table. */
- /* */
- /* <InOut> */
- /* face :: A handle to the target face object. */
- /* */
- /* <Input> */
- /* stream :: The input stream. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_LOCAL_DEF FT_Error
- TT_Load_Locations( TT_Face face,
- FT_Stream stream )
- {
- FT_Error error;
- FT_Memory memory = stream->memory;
- FT_Short LongOffsets;
- FT_ULong table_len;
-
-
- FT_TRACE2(( "Locations " ));
- LongOffsets = face->header.Index_To_Loc_Format;
-
- error = face->goto_table( face, TTAG_loca, stream, &table_len );
- if ( error )
- {
- error = TT_Err_Locations_Missing;
- goto Exit;
- }
-
- if ( LongOffsets != 0 )
- {
- face->num_locations = (FT_UShort)( table_len >> 2 );
-
- FT_TRACE2(( "(32bit offsets): %12d ", face->num_locations ));
-
- if ( ALLOC_ARRAY( face->glyph_locations,
- face->num_locations,
- FT_Long ) )
- goto Exit;
-
- if ( ACCESS_Frame( face->num_locations * 4L ) )
- goto Exit;
-
- {
- FT_Long* loc = face->glyph_locations;
- FT_Long* limit = loc + face->num_locations;
-
-
- for ( ; loc < limit; loc++ )
- *loc = GET_Long();
- }
-
- FORGET_Frame();
- }
- else
- {
- face->num_locations = (FT_UShort)( table_len >> 1 );
-
- FT_TRACE2(( "(16bit offsets): %12d ", face->num_locations ));
-
- if ( ALLOC_ARRAY( face->glyph_locations,
- face->num_locations,
- FT_Long ) )
- goto Exit;
-
- if ( ACCESS_Frame( face->num_locations * 2L ) )
- goto Exit;
- {
- FT_Long* loc = face->glyph_locations;
- FT_Long* limit = loc + face->num_locations;
-
-
- for ( ; loc < limit; loc++ )
- *loc = (FT_Long)( (FT_ULong)GET_UShort() * 2 );
- }
- FORGET_Frame();
- }
-
- FT_TRACE2(( "loaded\n" ));
-
- Exit:
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* TT_Load_CVT */
- /* */
- /* <Description> */
- /* Loads the control value table into a face object. */
- /* */
- /* <InOut> */
- /* face :: A handle to the target face object. */
- /* */
- /* <Input> */
- /* stream :: A handle to the input stream. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_LOCAL_DEF FT_Error
- TT_Load_CVT( TT_Face face,
- FT_Stream stream )
- {
- FT_Error error;
- FT_Memory memory = stream->memory;
- FT_ULong table_len;
-
-
- FT_TRACE2(( "CVT " ));
-
- error = face->goto_table( face, TTAG_cvt, stream, &table_len );
- if ( error )
- {
- FT_TRACE2(( "is missing!\n" ));
-
- face->cvt_size = 0;
- face->cvt = NULL;
- error = TT_Err_Ok;
-
- goto Exit;
- }
-
- face->cvt_size = table_len / 2;
-
- if ( ALLOC_ARRAY( face->cvt,
- face->cvt_size,
- FT_Short ) )
- goto Exit;
-
- if ( ACCESS_Frame( face->cvt_size * 2L ) )
- goto Exit;
-
- {
- FT_Short* cur = face->cvt;
- FT_Short* limit = cur + face->cvt_size;
-
-
- for ( ; cur < limit; cur++ )
- *cur = GET_Short();
- }
-
- FORGET_Frame();
- FT_TRACE2(( "loaded\n" ));
-
- Exit:
- return error;
- }
-
-
- /*************************************************************************/
- /* */
- /* <Function> */
- /* TT_Load_Progams */
- /* */
- /* <Description> */
- /* Loads the font program and the cvt program. */
- /* */
- /* <InOut> */
- /* face :: A handle to the target face object. */
- /* */
- /* <Input> */
- /* stream :: A handle to the input stream. */
- /* */
- /* <Return> */
- /* FreeType error code. 0 means success. */
- /* */
- FT_LOCAL_DEF FT_Error
- TT_Load_Programs( TT_Face face,
- FT_Stream stream )
- {
- FT_Error error;
- FT_ULong table_len;
-
-
- FT_TRACE2(( "Font program " ));
-
- /* The font program is optional */
- error = face->goto_table( face, TTAG_fpgm, stream, &table_len );
- if ( error )
- {
- face->font_program = NULL;
- face->font_program_size = 0;
-
- FT_TRACE2(( "is missing!\n" ));
- }
- else
- {
- face->font_program_size = table_len;
- if ( EXTRACT_Frame( table_len, face->font_program ) )
- goto Exit;
-
- FT_TRACE2(( "loaded, %12d bytes\n", face->font_program_size ));
- }
-
- FT_TRACE2(( "Prep program " ));
-
- error = face->goto_table( face, TTAG_prep, stream, &table_len );
- if ( error )
- {
- face->cvt_program = NULL;
- face->cvt_program_size = 0;
- error = TT_Err_Ok;
-
- FT_TRACE2(( "is missing!\n" ));
- }
- else
- {
- face->cvt_program_size = table_len;
- if ( EXTRACT_Frame( table_len, face->cvt_program ) )
- goto Exit;
-
- FT_TRACE2(( "loaded, %12d bytes\n", face->cvt_program_size ));
- }
-
- Exit:
- return error;
- }
-
-
-/* END */
projects / rrdtool.git / blobdiff