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authorBo Xu <bo_xu@foxitsoftware.com>2014-12-19 14:29:17 -0800
committerBo Xu <bo_xu@foxitsoftware.com>2014-12-19 15:03:12 -0800
commit4c764f391a4cfb82c81117cf9f249a8598be1cc5 (patch)
tree7d0cc6e2db4182a12ecab5f528c9bfccb4b7df6e /third_party/freetype/src/cid/cidparse.c
parentd44e39279b08c0954f07283b4fb3e7f3e292e4de (diff)
downloadpdfium-4c764f391a4cfb82c81117cf9f249a8598be1cc5.tar.xz
XFA: merge patch from CL 815103002
Update freetype to 2.5.4. Put freetype into third_party directory, cleaning up header files. Previously freetype header files are in core/src/fxge/freetype and core/include/thirdparties. There were also multiple fx_freetype.h. This patch removes the additional Foxit wrapper to make further update easier. Notice, for original freetype source code, the following files are modified and need to be updated accordingly in future update: third_party/freetype/include/config/ftmodule.h third_party/freetype/include/config/ftoption.h BUG=407341 R=thestig@chromium.org Review URL: https://codereview.chromium.org/815103002
Diffstat (limited to 'third_party/freetype/src/cid/cidparse.c')
-rw-r--r--third_party/freetype/src/cid/cidparse.c223
1 files changed, 223 insertions, 0 deletions
diff --git a/third_party/freetype/src/cid/cidparse.c b/third_party/freetype/src/cid/cidparse.c
new file mode 100644
index 0000000000..d8476cdae8
--- /dev/null
+++ b/third_party/freetype/src/cid/cidparse.c
@@ -0,0 +1,223 @@
+/***************************************************************************/
+/* */
+/* cidparse.c */
+/* */
+/* CID-keyed Type1 parser (body). */
+/* */
+/* Copyright 1996-2007, 2009, 2013, 2014 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 "cidparse.h"
+
+#include "ciderrs.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_cidparse
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /*************************************************************************/
+ /***** *****/
+ /***** INPUT STREAM PARSER *****/
+ /***** *****/
+ /*************************************************************************/
+ /*************************************************************************/
+ /*************************************************************************/
+
+
+ FT_LOCAL_DEF( FT_Error )
+ cid_parser_new( CID_Parser* parser,
+ FT_Stream stream,
+ FT_Memory memory,
+ PSAux_Service psaux )
+ {
+ FT_Error error;
+ FT_ULong base_offset, offset, ps_len;
+ FT_Byte *cur, *limit;
+ FT_Byte *arg1, *arg2;
+
+
+ FT_MEM_ZERO( parser, sizeof ( *parser ) );
+ psaux->ps_parser_funcs->init( &parser->root, 0, 0, memory );
+
+ parser->stream = stream;
+
+ base_offset = FT_STREAM_POS();
+
+ /* first of all, check the font format in the header */
+ if ( FT_FRAME_ENTER( 31 ) )
+ goto Exit;
+
+ if ( ft_strncmp( (char *)stream->cursor,
+ "%!PS-Adobe-3.0 Resource-CIDFont", 31 ) )
+ {
+ FT_TRACE2(( " not a CID-keyed font\n" ));
+ error = FT_THROW( Unknown_File_Format );
+ }
+
+ FT_FRAME_EXIT();
+ if ( error )
+ goto Exit;
+
+ Again:
+ /* now, read the rest of the file until we find */
+ /* `StartData' or `/sfnts' */
+ {
+ FT_Byte buffer[256 + 10];
+ FT_Long read_len = 256 + 10; /* same as signed FT_Stream->size */
+ FT_Byte* p = buffer;
+
+
+ for ( offset = FT_STREAM_POS(); ; offset += 256 )
+ {
+ FT_Long stream_len; /* same as signed FT_Stream->size */
+
+
+ stream_len = stream->size - FT_STREAM_POS();
+ if ( stream_len == 0 )
+ {
+ FT_TRACE2(( "cid_parser_new: no `StartData' keyword found\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Exit;
+ }
+
+ read_len = FT_MIN( read_len, stream_len );
+ if ( FT_STREAM_READ( p, read_len ) )
+ goto Exit;
+
+ if ( read_len < 256 )
+ p[read_len] = '\0';
+
+ limit = p + read_len - 10;
+
+ for ( p = buffer; p < limit; p++ )
+ {
+ if ( p[0] == 'S' && ft_strncmp( (char*)p, "StartData", 9 ) == 0 )
+ {
+ /* save offset of binary data after `StartData' */
+ offset += (FT_ULong)( p - buffer + 10 );
+ goto Found;
+ }
+ else if ( p[1] == 's' && ft_strncmp( (char*)p, "/sfnts", 6 ) == 0 )
+ {
+ offset += (FT_ULong)( p - buffer + 7 );
+ goto Found;
+ }
+ }
+
+ FT_MEM_MOVE( buffer, p, 10 );
+ read_len = 256;
+ p = buffer + 10;
+ }
+ }
+
+ Found:
+ /* We have found the start of the binary data or the `/sfnts' token. */
+ /* Now rewind and extract the frame corresponding to this PostScript */
+ /* section. */
+
+ ps_len = offset - base_offset;
+ if ( FT_STREAM_SEEK( base_offset ) ||
+ FT_FRAME_EXTRACT( ps_len, parser->postscript ) )
+ goto Exit;
+
+ parser->data_offset = offset;
+ parser->postscript_len = ps_len;
+ parser->root.base = parser->postscript;
+ parser->root.cursor = parser->postscript;
+ parser->root.limit = parser->root.cursor + ps_len;
+ parser->num_dict = -1;
+
+ /* Finally, we check whether `StartData' or `/sfnts' was real -- */
+ /* it could be in a comment or string. We also get the arguments */
+ /* of `StartData' to find out whether the data is represented in */
+ /* binary or hex format. */
+
+ arg1 = parser->root.cursor;
+ cid_parser_skip_PS_token( parser );
+ cid_parser_skip_spaces ( parser );
+ arg2 = parser->root.cursor;
+ cid_parser_skip_PS_token( parser );
+ cid_parser_skip_spaces ( parser );
+
+ limit = parser->root.limit;
+ cur = parser->root.cursor;
+
+ while ( cur < limit )
+ {
+ if ( parser->root.error )
+ {
+ error = parser->root.error;
+ goto Exit;
+ }
+
+ if ( cur[0] == 'S' && ft_strncmp( (char*)cur, "StartData", 9 ) == 0 )
+ {
+ if ( ft_strncmp( (char*)arg1, "(Hex)", 5 ) == 0 )
+ parser->binary_length = ft_atol( (const char *)arg2 );
+
+ goto Exit;
+ }
+ else if ( cur[1] == 's' && ft_strncmp( (char*)cur, "/sfnts", 6 ) == 0 )
+ {
+ FT_TRACE2(( "cid_parser_new: cannot handle Type 11 fonts\n" ));
+ error = FT_THROW( Unknown_File_Format );
+ goto Exit;
+ }
+
+ cid_parser_skip_PS_token( parser );
+ cid_parser_skip_spaces ( parser );
+ arg1 = arg2;
+ arg2 = cur;
+ cur = parser->root.cursor;
+ }
+
+ /* we haven't found the correct `StartData'; go back and continue */
+ /* searching */
+ FT_FRAME_RELEASE( parser->postscript );
+ if ( !FT_STREAM_SEEK( offset ) )
+ goto Again;
+
+ Exit:
+ return error;
+ }
+
+
+ FT_LOCAL_DEF( void )
+ cid_parser_done( CID_Parser* parser )
+ {
+ /* always free the private dictionary */
+ if ( parser->postscript )
+ {
+ FT_Stream stream = parser->stream;
+
+
+ FT_FRAME_RELEASE( parser->postscript );
+ }
+ parser->root.funcs.done( &parser->root );
+ }
+
+
+/* END */