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Diffstat (limited to 'nx-X11/extras/freetype2/src/truetype/ttpload.c')
-rw-r--r--nx-X11/extras/freetype2/src/truetype/ttpload.c273
1 files changed, 273 insertions, 0 deletions
diff --git a/nx-X11/extras/freetype2/src/truetype/ttpload.c b/nx-X11/extras/freetype2/src/truetype/ttpload.c
new file mode 100644
index 000000000..9cae477c5
--- /dev/null
+++ b/nx-X11/extras/freetype2/src/truetype/ttpload.c
@@ -0,0 +1,273 @@
+/***************************************************************************/
+/* */
+/* ttpload.c */
+/* */
+/* TrueType glyph data/program tables loader (body). */
+/* */
+/* Copyright 1996-2001, 2002, 2004 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* */
+/* This file is part of the FreeType project, and may only be used, */
+/* modified, and distributed under the terms of the FreeType project */
+/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
+/* this file you indicate that you have read the license and */
+/* understand and accept it fully. */
+/* */
+/***************************************************************************/
+
+
+#include <ft2build.h>
+#include FT_INTERNAL_DEBUG_H
+#include FT_INTERNAL_OBJECTS_H
+#include FT_INTERNAL_STREAM_H
+#include FT_TRUETYPE_TAGS_H
+
+#include "ttpload.h"
+
+#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
+#include "ttgxvar.h"
+#endif
+
+#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_face_load_loca */
+ /* */
+ /* <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_face_load_loca( 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 ( FT_NEW_ARRAY( face->glyph_locations, face->num_locations ) )
+ goto Exit;
+
+ if ( FT_FRAME_ENTER( face->num_locations * 4L ) )
+ goto Exit;
+
+ {
+ FT_Long* loc = face->glyph_locations;
+ FT_Long* limit = loc + face->num_locations;
+
+
+ for ( ; loc < limit; loc++ )
+ *loc = FT_GET_LONG();
+ }
+
+ FT_FRAME_EXIT();
+ }
+ else
+ {
+ face->num_locations = (FT_UShort)( table_len >> 1 );
+
+ FT_TRACE2(( "(16bit offsets): %12d ", face->num_locations ));
+
+ if ( FT_NEW_ARRAY( face->glyph_locations, face->num_locations ) )
+ goto Exit;
+
+ if ( FT_FRAME_ENTER( 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)FT_GET_USHORT() * 2 );
+ }
+ FT_FRAME_EXIT();
+ }
+
+ FT_TRACE2(( "loaded\n" ));
+
+ Exit:
+ return error;
+ }
+
+
+ /*************************************************************************/
+ /* */
+ /* <Function> */
+ /* tt_face_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_face_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 ( FT_NEW_ARRAY( face->cvt, face->cvt_size ) )
+ goto Exit;
+
+ if ( FT_FRAME_ENTER( face->cvt_size * 2L ) )
+ goto Exit;
+
+ {
+ FT_Short* cur = face->cvt;
+ FT_Short* limit = cur + face->cvt_size;
+
+
+ for ( ; cur < limit; cur++ )
+ *cur = FT_GET_SHORT();
+ }
+
+ FT_FRAME_EXIT();
+ FT_TRACE2(( "loaded\n" ));
+
+#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
+ if ( face->doblend )
+ error = tt_face_vary_cvt( face, stream );
+#endif
+
+ Exit:
+ return error;
+ }
+
+
+ /*************************************************************************/
+ /* */
+ /* <Function> */
+ /* tt_face_load_fpgm */
+ /* */
+ /* <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_face_load_fpgm( 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 ( FT_FRAME_EXTRACT( 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 ( FT_FRAME_EXTRACT( table_len, face->cvt_program ) )
+ goto Exit;
+
+ FT_TRACE2(( "loaded, %12d bytes\n", face->cvt_program_size ));
+ }
+
+ Exit:
+ return error;
+ }
+
+
+/* END */
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