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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit38be0d13830efd2d98281c645c3a60afe05ffece (patch)
tree6ea73f3ec77f7d153333779883e8120f82820abe /src/3rdparty/freetype/src/winfonts/winfnt.c
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
Diffstat (limited to 'src/3rdparty/freetype/src/winfonts/winfnt.c')
-rw-r--r--src/3rdparty/freetype/src/winfonts/winfnt.c1135
1 files changed, 1135 insertions, 0 deletions
diff --git a/src/3rdparty/freetype/src/winfonts/winfnt.c b/src/3rdparty/freetype/src/winfonts/winfnt.c
new file mode 100644
index 0000000000..f6e9859b44
--- /dev/null
+++ b/src/3rdparty/freetype/src/winfonts/winfnt.c
@@ -0,0 +1,1135 @@
+/***************************************************************************/
+/* */
+/* winfnt.c */
+/* */
+/* FreeType font driver for Windows FNT/FON files */
+/* */
+/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008 by */
+/* David Turner, Robert Wilhelm, and Werner Lemberg. */
+/* Copyright 2003 Huw D M Davies for Codeweavers */
+/* Copyright 2007 Dmitry Timoshkov for Codeweavers */
+/* */
+/* 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_WINFONTS_H
+#include FT_INTERNAL_DEBUG_H
+#include FT_INTERNAL_STREAM_H
+#include FT_INTERNAL_OBJECTS_H
+
+#include "winfnt.h"
+#include "fnterrs.h"
+#include FT_SERVICE_WINFNT_H
+#include FT_SERVICE_XFREE86_NAME_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_winfnt
+
+
+ static const FT_Frame_Field winmz_header_fields[] =
+ {
+#undef FT_STRUCTURE
+#define FT_STRUCTURE WinMZ_HeaderRec
+
+ FT_FRAME_START( 64 ),
+ FT_FRAME_USHORT_LE ( magic ),
+ FT_FRAME_SKIP_BYTES( 29 * 2 ),
+ FT_FRAME_ULONG_LE ( lfanew ),
+ FT_FRAME_END
+ };
+
+ static const FT_Frame_Field winne_header_fields[] =
+ {
+#undef FT_STRUCTURE
+#define FT_STRUCTURE WinNE_HeaderRec
+
+ FT_FRAME_START( 40 ),
+ FT_FRAME_USHORT_LE ( magic ),
+ FT_FRAME_SKIP_BYTES( 34 ),
+ FT_FRAME_USHORT_LE ( resource_tab_offset ),
+ FT_FRAME_USHORT_LE ( rname_tab_offset ),
+ FT_FRAME_END
+ };
+
+ static const FT_Frame_Field winpe32_header_fields[] =
+ {
+#undef FT_STRUCTURE
+#define FT_STRUCTURE WinPE32_HeaderRec
+
+ FT_FRAME_START( 248 ),
+ FT_FRAME_ULONG_LE ( magic ), /* PE00 */
+ FT_FRAME_USHORT_LE ( machine ), /* 0x014c - i386 */
+ FT_FRAME_USHORT_LE ( number_of_sections ),
+ FT_FRAME_SKIP_BYTES( 12 ),
+ FT_FRAME_USHORT_LE ( size_of_optional_header ),
+ FT_FRAME_SKIP_BYTES( 2 ),
+ FT_FRAME_USHORT_LE ( magic32 ), /* 0x10b */
+ FT_FRAME_SKIP_BYTES( 110 ),
+ FT_FRAME_ULONG_LE ( rsrc_virtual_address ),
+ FT_FRAME_ULONG_LE ( rsrc_size ),
+ FT_FRAME_SKIP_BYTES( 104 ),
+ FT_FRAME_END
+ };
+
+ static const FT_Frame_Field winpe32_section_fields[] =
+ {
+#undef FT_STRUCTURE
+#define FT_STRUCTURE WinPE32_SectionRec
+
+ FT_FRAME_START( 40 ),
+ FT_FRAME_BYTES ( name, 8 ),
+ FT_FRAME_SKIP_BYTES( 4 ),
+ FT_FRAME_ULONG_LE ( virtual_address ),
+ FT_FRAME_ULONG_LE ( size_of_raw_data ),
+ FT_FRAME_ULONG_LE ( pointer_to_raw_data ),
+ FT_FRAME_SKIP_BYTES( 16 ),
+ FT_FRAME_END
+ };
+
+ static const FT_Frame_Field winpe_rsrc_dir_fields[] =
+ {
+#undef FT_STRUCTURE
+#define FT_STRUCTURE WinPE_RsrcDirRec
+
+ FT_FRAME_START( 16 ),
+ FT_FRAME_ULONG_LE ( characteristics ),
+ FT_FRAME_ULONG_LE ( time_date_stamp ),
+ FT_FRAME_USHORT_LE( major_version ),
+ FT_FRAME_USHORT_LE( minor_version ),
+ FT_FRAME_USHORT_LE( number_of_named_entries ),
+ FT_FRAME_USHORT_LE( number_of_id_entries ),
+ FT_FRAME_END
+ };
+
+ static const FT_Frame_Field winpe_rsrc_dir_entry_fields[] =
+ {
+#undef FT_STRUCTURE
+#define FT_STRUCTURE WinPE_RsrcDirEntryRec
+
+ FT_FRAME_START( 8 ),
+ FT_FRAME_ULONG_LE( name ),
+ FT_FRAME_ULONG_LE( offset ),
+ FT_FRAME_END
+ };
+
+ static const FT_Frame_Field winpe_rsrc_data_entry_fields[] =
+ {
+#undef FT_STRUCTURE
+#define FT_STRUCTURE WinPE_RsrcDataEntryRec
+
+ FT_FRAME_START( 16 ),
+ FT_FRAME_ULONG_LE( offset_to_data ),
+ FT_FRAME_ULONG_LE( size ),
+ FT_FRAME_ULONG_LE( code_page ),
+ FT_FRAME_ULONG_LE( reserved ),
+ FT_FRAME_END
+ };
+
+ static const FT_Frame_Field winfnt_header_fields[] =
+ {
+#undef FT_STRUCTURE
+#define FT_STRUCTURE FT_WinFNT_HeaderRec
+
+ FT_FRAME_START( 148 ),
+ FT_FRAME_USHORT_LE( version ),
+ FT_FRAME_ULONG_LE ( file_size ),
+ FT_FRAME_BYTES ( copyright, 60 ),
+ FT_FRAME_USHORT_LE( file_type ),
+ FT_FRAME_USHORT_LE( nominal_point_size ),
+ FT_FRAME_USHORT_LE( vertical_resolution ),
+ FT_FRAME_USHORT_LE( horizontal_resolution ),
+ FT_FRAME_USHORT_LE( ascent ),
+ FT_FRAME_USHORT_LE( internal_leading ),
+ FT_FRAME_USHORT_LE( external_leading ),
+ FT_FRAME_BYTE ( italic ),
+ FT_FRAME_BYTE ( underline ),
+ FT_FRAME_BYTE ( strike_out ),
+ FT_FRAME_USHORT_LE( weight ),
+ FT_FRAME_BYTE ( charset ),
+ FT_FRAME_USHORT_LE( pixel_width ),
+ FT_FRAME_USHORT_LE( pixel_height ),
+ FT_FRAME_BYTE ( pitch_and_family ),
+ FT_FRAME_USHORT_LE( avg_width ),
+ FT_FRAME_USHORT_LE( max_width ),
+ FT_FRAME_BYTE ( first_char ),
+ FT_FRAME_BYTE ( last_char ),
+ FT_FRAME_BYTE ( default_char ),
+ FT_FRAME_BYTE ( break_char ),
+ FT_FRAME_USHORT_LE( bytes_per_row ),
+ FT_FRAME_ULONG_LE ( device_offset ),
+ FT_FRAME_ULONG_LE ( face_name_offset ),
+ FT_FRAME_ULONG_LE ( bits_pointer ),
+ FT_FRAME_ULONG_LE ( bits_offset ),
+ FT_FRAME_BYTE ( reserved ),
+ FT_FRAME_ULONG_LE ( flags ),
+ FT_FRAME_USHORT_LE( A_space ),
+ FT_FRAME_USHORT_LE( B_space ),
+ FT_FRAME_USHORT_LE( C_space ),
+ FT_FRAME_ULONG_LE ( color_table_offset ),
+ FT_FRAME_BYTES ( reserved1, 16 ),
+ FT_FRAME_END
+ };
+
+
+ static void
+ fnt_font_done( FNT_Face face )
+ {
+ FT_Memory memory = FT_FACE( face )->memory;
+ FT_Stream stream = FT_FACE( face )->stream;
+ FNT_Font font = face->font;
+
+
+ if ( !font )
+ return;
+
+ if ( font->fnt_frame )
+ FT_FRAME_RELEASE( font->fnt_frame );
+ FT_FREE( font->family_name );
+
+ FT_FREE( font );
+ face->font = 0;
+ }
+
+
+ static FT_Error
+ fnt_font_load( FNT_Font font,
+ FT_Stream stream )
+ {
+ FT_Error error;
+ FT_WinFNT_Header header = &font->header;
+ FT_Bool new_format;
+ FT_UInt size;
+
+
+ /* first of all, read the FNT header */
+ if ( FT_STREAM_SEEK( font->offset ) ||
+ FT_STREAM_READ_FIELDS( winfnt_header_fields, header ) )
+ goto Exit;
+
+ /* check header */
+ if ( header->version != 0x200 &&
+ header->version != 0x300 )
+ {
+ FT_TRACE2(( "[not a valid FNT file]\n" ));
+ error = FNT_Err_Unknown_File_Format;
+ goto Exit;
+ }
+
+ new_format = FT_BOOL( font->header.version == 0x300 );
+ size = new_format ? 148 : 118;
+
+ if ( header->file_size < size )
+ {
+ FT_TRACE2(( "[not a valid FNT file]\n" ));
+ error = FNT_Err_Unknown_File_Format;
+ goto Exit;
+ }
+
+ /* Version 2 doesn't have these fields */
+ if ( header->version == 0x200 )
+ {
+ header->flags = 0;
+ header->A_space = 0;
+ header->B_space = 0;
+ header->C_space = 0;
+
+ header->color_table_offset = 0;
+ }
+
+ if ( header->file_type & 1 )
+ {
+ FT_TRACE2(( "[can't handle vector FNT fonts]\n" ));
+ error = FNT_Err_Unknown_File_Format;
+ goto Exit;
+ }
+
+ /* this is a FNT file/table; extract its frame */
+ if ( FT_STREAM_SEEK( font->offset ) ||
+ FT_FRAME_EXTRACT( header->file_size, font->fnt_frame ) )
+ goto Exit;
+
+ Exit:
+ return error;
+ }
+
+
+ static FT_Error
+ fnt_face_get_dll_font( FNT_Face face,
+ FT_Int face_index )
+ {
+ FT_Error error;
+ FT_Stream stream = FT_FACE( face )->stream;
+ FT_Memory memory = FT_FACE( face )->memory;
+ WinMZ_HeaderRec mz_header;
+
+
+ face->font = 0;
+
+ /* does it begin with an MZ header? */
+ if ( FT_STREAM_SEEK( 0 ) ||
+ FT_STREAM_READ_FIELDS( winmz_header_fields, &mz_header ) )
+ goto Exit;
+
+ error = FNT_Err_Unknown_File_Format;
+ if ( mz_header.magic == WINFNT_MZ_MAGIC )
+ {
+ /* yes, now look for an NE header in the file */
+ WinNE_HeaderRec ne_header;
+
+
+ FT_TRACE2(( "MZ signature found\n" ));
+
+ if ( FT_STREAM_SEEK( mz_header.lfanew ) ||
+ FT_STREAM_READ_FIELDS( winne_header_fields, &ne_header ) )
+ goto Exit;
+
+ error = FNT_Err_Unknown_File_Format;
+ if ( ne_header.magic == WINFNT_NE_MAGIC )
+ {
+ /* good, now look into the resource table for each FNT resource */
+ FT_ULong res_offset = mz_header.lfanew +
+ ne_header.resource_tab_offset;
+ FT_UShort size_shift;
+ FT_UShort font_count = 0;
+ FT_ULong font_offset = 0;
+
+
+ FT_TRACE2(( "NE signature found\n" ));
+
+ if ( FT_STREAM_SEEK( res_offset ) ||
+ FT_FRAME_ENTER( ne_header.rname_tab_offset -
+ ne_header.resource_tab_offset ) )
+ goto Exit;
+
+ size_shift = FT_GET_USHORT_LE();
+
+ for (;;)
+ {
+ FT_UShort type_id, count;
+
+
+ type_id = FT_GET_USHORT_LE();
+ if ( !type_id )
+ break;
+
+ count = FT_GET_USHORT_LE();
+
+ if ( type_id == 0x8008U )
+ {
+ font_count = count;
+ font_offset = (FT_ULong)( FT_STREAM_POS() + 4 +
+ ( stream->cursor - stream->limit ) );
+ break;
+ }
+
+ stream->cursor += 4 + count * 12;
+ }
+
+ FT_FRAME_EXIT();
+
+ if ( !font_count || !font_offset )
+ {
+ FT_TRACE2(( "this file doesn't contain any FNT resources!\n" ));
+ error = FNT_Err_Invalid_File_Format;
+ goto Exit;
+ }
+
+ /* loading `winfnt_header_fields' needs at least 118 bytes; */
+ /* use this as a rough measure to check the expected font size */
+ if ( font_count * 118UL > stream->size )
+ {
+ FT_TRACE2(( "invalid number of faces\n" ));
+ error = FNT_Err_Invalid_File_Format;
+ goto Exit;
+ }
+
+ face->root.num_faces = font_count;
+
+ if ( face_index >= font_count )
+ {
+ error = FNT_Err_Invalid_Argument;
+ goto Exit;
+ }
+ else if ( face_index < 0 )
+ goto Exit;
+
+ if ( FT_NEW( face->font ) )
+ goto Exit;
+
+ if ( FT_STREAM_SEEK( font_offset + face_index * 12 ) ||
+ FT_FRAME_ENTER( 12 ) )
+ goto Fail;
+
+ face->font->offset = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
+ face->font->fnt_size = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
+
+ stream->cursor += 8;
+
+ FT_FRAME_EXIT();
+
+ error = fnt_font_load( face->font, stream );
+ }
+ else if ( ne_header.magic == WINFNT_PE_MAGIC )
+ {
+ WinPE32_HeaderRec pe32_header;
+ WinPE32_SectionRec pe32_section;
+ WinPE_RsrcDirRec root_dir, name_dir, lang_dir;
+ WinPE_RsrcDirEntryRec dir_entry1, dir_entry2, dir_entry3;
+ WinPE_RsrcDataEntryRec data_entry;
+
+ FT_Long root_dir_offset, name_dir_offset, lang_dir_offset;
+ FT_UShort i, j, k;
+
+
+ FT_TRACE2(( "PE signature found\n" ));
+
+ if ( FT_STREAM_SEEK( mz_header.lfanew ) ||
+ FT_STREAM_READ_FIELDS( winpe32_header_fields, &pe32_header ) )
+ goto Exit;
+
+ FT_TRACE2(( "magic %04lx, machine %02x, number_of_sections %u, "
+ "size_of_optional_header %02x\n"
+ "magic32 %02x, rsrc_virtual_address %04lx, "
+ "rsrc_size %04lx\n",
+ pe32_header.magic, pe32_header.machine,
+ pe32_header.number_of_sections,
+ pe32_header.size_of_optional_header,
+ pe32_header.magic32, pe32_header.rsrc_virtual_address,
+ pe32_header.rsrc_size ));
+
+ if ( pe32_header.magic != WINFNT_PE_MAGIC /* check full signature */ ||
+ pe32_header.machine != 0x014c /* i386 */ ||
+ pe32_header.size_of_optional_header != 0xe0 /* FIXME */ ||
+ pe32_header.magic32 != 0x10b )
+ {
+ FT_TRACE2(( "this file has an invalid PE header\n" ));
+ error = FNT_Err_Invalid_File_Format;
+ goto Exit;
+ }
+
+ face->root.num_faces = 0;
+
+ for ( i = 0; i < pe32_header.number_of_sections; i++ )
+ {
+ if ( FT_STREAM_READ_FIELDS( winpe32_section_fields,
+ &pe32_section ) )
+ goto Exit;
+
+ FT_TRACE2(( "name %.8s, va %04lx, size %04lx, offset %04lx\n",
+ pe32_section.name, pe32_section.virtual_address,
+ pe32_section.size_of_raw_data,
+ pe32_section.pointer_to_raw_data ));
+
+ if ( pe32_header.rsrc_virtual_address ==
+ pe32_section.virtual_address )
+ goto Found_rsrc_section;
+ }
+
+ FT_TRACE2(( "this file doesn't contain any resources\n" ));
+ error = FNT_Err_Invalid_File_Format;
+ goto Exit;
+
+ Found_rsrc_section:
+ FT_TRACE2(( "found resources section %.8s\n", pe32_section.name ));
+
+ if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data ) ||
+ FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &root_dir ) )
+ goto Exit;
+
+ root_dir_offset = pe32_section.pointer_to_raw_data;
+
+ for ( i = 0; i < root_dir.number_of_named_entries +
+ root_dir.number_of_id_entries; i++ )
+ {
+ if ( FT_STREAM_SEEK( root_dir_offset + 16 + i * 8 ) ||
+ FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
+ &dir_entry1 ) )
+ goto Exit;
+
+ if ( !(dir_entry1.offset & 0x80000000UL ) /* DataIsDirectory */ )
+ {
+ error = FNT_Err_Invalid_File_Format;
+ goto Exit;
+ }
+
+ dir_entry1.offset &= ~0x80000000UL;
+
+ name_dir_offset = pe32_section.pointer_to_raw_data +
+ dir_entry1.offset;
+
+ if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data +
+ dir_entry1.offset ) ||
+ FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &name_dir ) )
+ goto Exit;
+
+ for ( j = 0; j < name_dir.number_of_named_entries +
+ name_dir.number_of_id_entries; j++ )
+ {
+ if ( FT_STREAM_SEEK( name_dir_offset + 16 + j * 8 ) ||
+ FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
+ &dir_entry2 ) )
+ goto Exit;
+
+ if ( !(dir_entry2.offset & 0x80000000UL ) /* DataIsDirectory */ )
+ {
+ error = FNT_Err_Invalid_File_Format;
+ goto Exit;
+ }
+
+ dir_entry2.offset &= ~0x80000000UL;
+
+ lang_dir_offset = pe32_section.pointer_to_raw_data +
+ dir_entry2.offset;
+
+ if ( FT_STREAM_SEEK( pe32_section.pointer_to_raw_data +
+ dir_entry2.offset ) ||
+ FT_STREAM_READ_FIELDS( winpe_rsrc_dir_fields, &lang_dir ) )
+ goto Exit;
+
+ for ( k = 0; k < lang_dir.number_of_named_entries +
+ lang_dir.number_of_id_entries; k++ )
+ {
+ if ( FT_STREAM_SEEK( lang_dir_offset + 16 + k * 8 ) ||
+ FT_STREAM_READ_FIELDS( winpe_rsrc_dir_entry_fields,
+ &dir_entry3 ) )
+ goto Exit;
+
+ if ( dir_entry2.offset & 0x80000000UL /* DataIsDirectory */ )
+ {
+ error = FNT_Err_Invalid_File_Format;
+ goto Exit;
+ }
+
+ if ( dir_entry1.name == 8 /* RT_FONT */ )
+ {
+ if ( FT_STREAM_SEEK( root_dir_offset + dir_entry3.offset ) ||
+ FT_STREAM_READ_FIELDS( winpe_rsrc_data_entry_fields,
+ &data_entry ) )
+ goto Exit;
+
+ FT_TRACE2(( "found font #%lu, offset %04lx, "
+ "size %04lx, cp %lu\n",
+ dir_entry2.name,
+ pe32_section.pointer_to_raw_data +
+ data_entry.offset_to_data -
+ pe32_section.virtual_address,
+ data_entry.size, data_entry.code_page ));
+
+ if ( face_index == face->root.num_faces )
+ {
+ if ( FT_NEW( face->font ) )
+ goto Exit;
+
+ face->font->offset = pe32_section.pointer_to_raw_data +
+ data_entry.offset_to_data -
+ pe32_section.virtual_address;
+ face->font->fnt_size = data_entry.size;
+
+ error = fnt_font_load( face->font, stream );
+ if ( error )
+ {
+ FT_TRACE2(( "font #%lu load error %d\n",
+ dir_entry2.name, error ));
+ goto Fail;
+ }
+ else
+ FT_TRACE2(( "font #%lu successfully loaded\n",
+ dir_entry2.name ));
+ }
+
+ face->root.num_faces++;
+ }
+ }
+ }
+ }
+ }
+
+ if ( !face->root.num_faces )
+ {
+ FT_TRACE2(( "this file doesn't contain any RT_FONT resources\n" ));
+ error = FNT_Err_Invalid_File_Format;
+ goto Exit;
+ }
+
+ if ( face_index >= face->root.num_faces )
+ {
+ error = FNT_Err_Invalid_Argument;
+ goto Exit;
+ }
+ }
+
+ Fail:
+ if ( error )
+ fnt_font_done( face );
+
+ Exit:
+ return error;
+ }
+
+
+ typedef struct FNT_CMapRec_
+ {
+ FT_CMapRec cmap;
+ FT_UInt32 first;
+ FT_UInt32 count;
+
+ } FNT_CMapRec, *FNT_CMap;
+
+
+ static FT_Error
+ fnt_cmap_init( FNT_CMap cmap )
+ {
+ FNT_Face face = (FNT_Face)FT_CMAP_FACE( cmap );
+ FNT_Font font = face->font;
+
+
+ cmap->first = (FT_UInt32) font->header.first_char;
+ cmap->count = (FT_UInt32)( font->header.last_char - cmap->first + 1 );
+
+ return 0;
+ }
+
+
+ static FT_UInt
+ fnt_cmap_char_index( FNT_CMap cmap,
+ FT_UInt32 char_code )
+ {
+ FT_UInt gindex = 0;
+
+
+ char_code -= cmap->first;
+ if ( char_code < cmap->count )
+ /* we artificially increase the glyph index; */
+ /* FNT_Load_Glyph reverts to the right one */
+ gindex = (FT_UInt)( char_code + 1 );
+ return gindex;
+ }
+
+
+ static FT_UInt
+ fnt_cmap_char_next( FNT_CMap cmap,
+ FT_UInt32 *pchar_code )
+ {
+ FT_UInt gindex = 0;
+ FT_UInt32 result = 0;
+ FT_UInt32 char_code = *pchar_code + 1;
+
+
+ if ( char_code <= cmap->first )
+ {
+ result = cmap->first;
+ gindex = 1;
+ }
+ else
+ {
+ char_code -= cmap->first;
+ if ( char_code < cmap->count )
+ {
+ result = cmap->first + char_code;
+ gindex = (FT_UInt)( char_code + 1 );
+ }
+ }
+
+ *pchar_code = result;
+ return gindex;
+ }
+
+
+ static const FT_CMap_ClassRec fnt_cmap_class_rec =
+ {
+ sizeof ( FNT_CMapRec ),
+
+ (FT_CMap_InitFunc) fnt_cmap_init,
+ (FT_CMap_DoneFunc) NULL,
+ (FT_CMap_CharIndexFunc)fnt_cmap_char_index,
+ (FT_CMap_CharNextFunc) fnt_cmap_char_next,
+
+ NULL, NULL, NULL, NULL, NULL
+ };
+
+ static FT_CMap_Class const fnt_cmap_class = &fnt_cmap_class_rec;
+
+
+ static void
+ FNT_Face_Done( FNT_Face face )
+ {
+ FT_Memory memory;
+
+
+ if ( !face )
+ return;
+
+ memory = FT_FACE_MEMORY( face );
+
+ fnt_font_done( face );
+
+ FT_FREE( face->root.available_sizes );
+ face->root.num_fixed_sizes = 0;
+ }
+
+
+ static FT_Error
+ FNT_Face_Init( FT_Stream stream,
+ FNT_Face face,
+ FT_Int face_index,
+ FT_Int num_params,
+ FT_Parameter* params )
+ {
+ FT_Error error;
+ FT_Memory memory = FT_FACE_MEMORY( face );
+
+ FT_UNUSED( num_params );
+ FT_UNUSED( params );
+
+
+ /* try to load font from a DLL */
+ error = fnt_face_get_dll_font( face, face_index );
+ if ( !error && face_index < 0 )
+ goto Exit;
+
+ if ( error == FNT_Err_Unknown_File_Format )
+ {
+ /* this didn't work; try to load a single FNT font */
+ FNT_Font font;
+
+ if ( FT_NEW( face->font ) )
+ goto Exit;
+
+ face->root.num_faces = 1;
+
+ font = face->font;
+ font->offset = 0;
+ font->fnt_size = stream->size;
+
+ error = fnt_font_load( font, stream );
+
+ if ( !error )
+ {
+ if ( face_index > 0 )
+ error = FNT_Err_Invalid_Argument;
+ else if ( face_index < 0 )
+ goto Exit;
+ }
+ }
+
+ if ( error )
+ goto Fail;
+
+ /* we now need to fill the root FT_Face fields */
+ /* with relevant information */
+ {
+ FT_Face root = FT_FACE( face );
+ FNT_Font font = face->font;
+ FT_PtrDist family_size;
+
+
+ root->face_index = face_index;
+
+ root->face_flags = FT_FACE_FLAG_FIXED_SIZES |
+ FT_FACE_FLAG_HORIZONTAL;
+
+ if ( font->header.avg_width == font->header.max_width )
+ root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
+
+ if ( font->header.italic )
+ root->style_flags |= FT_STYLE_FLAG_ITALIC;
+
+ if ( font->header.weight >= 800 )
+ root->style_flags |= FT_STYLE_FLAG_BOLD;
+
+ /* set up the `fixed_sizes' array */
+ if ( FT_NEW_ARRAY( root->available_sizes, 1 ) )
+ goto Fail;
+
+ root->num_fixed_sizes = 1;
+
+ {
+ FT_Bitmap_Size* bsize = root->available_sizes;
+ FT_UShort x_res, y_res;
+
+
+ bsize->width = font->header.avg_width;
+ bsize->height = (FT_Short)(
+ font->header.pixel_height + font->header.external_leading );
+ bsize->size = font->header.nominal_point_size << 6;
+
+ x_res = font->header.horizontal_resolution;
+ if ( !x_res )
+ x_res = 72;
+
+ y_res = font->header.vertical_resolution;
+ if ( !y_res )
+ y_res = 72;
+
+ bsize->y_ppem = FT_MulDiv( bsize->size, y_res, 72 );
+ bsize->y_ppem = FT_PIX_ROUND( bsize->y_ppem );
+
+ /*
+ * this reads:
+ *
+ * the nominal height is larger than the bbox's height
+ *
+ * => nominal_point_size contains incorrect value;
+ * use pixel_height as the nominal height
+ */
+ if ( bsize->y_ppem > ( font->header.pixel_height << 6 ) )
+ {
+ FT_TRACE2(( "use pixel_height as the nominal height\n" ));
+
+ bsize->y_ppem = font->header.pixel_height << 6;
+ bsize->size = FT_MulDiv( bsize->y_ppem, 72, y_res );
+ }
+
+ bsize->x_ppem = FT_MulDiv( bsize->size, x_res, 72 );
+ bsize->x_ppem = FT_PIX_ROUND( bsize->x_ppem );
+ }
+
+ {
+ FT_CharMapRec charmap;
+
+
+ charmap.encoding = FT_ENCODING_NONE;
+ charmap.platform_id = 0;
+ charmap.encoding_id = 0;
+ charmap.face = root;
+
+ if ( font->header.charset == FT_WinFNT_ID_MAC )
+ {
+ charmap.encoding = FT_ENCODING_APPLE_ROMAN;
+ charmap.platform_id = 1;
+/* charmap.encoding_id = 0; */
+ }
+
+ error = FT_CMap_New( fnt_cmap_class,
+ NULL,
+ &charmap,
+ NULL );
+ if ( error )
+ goto Fail;
+
+ /* Select default charmap */
+ if ( root->num_charmaps )
+ root->charmap = root->charmaps[0];
+ }
+
+ /* setup remaining flags */
+
+ /* reserve one slot for the .notdef glyph at index 0 */
+ root->num_glyphs = font->header.last_char -
+ font->header.first_char + 1 + 1;
+
+ if ( font->header.face_name_offset >= font->header.file_size )
+ {
+ FT_TRACE2(( "invalid family name offset!\n" ));
+ error = FNT_Err_Invalid_File_Format;
+ goto Fail;
+ }
+ family_size = font->header.file_size - font->header.face_name_offset;
+ /* Some broken fonts don't delimit the face name with a final */
+ /* NULL byte -- the frame is erroneously one byte too small. */
+ /* We thus allocate one more byte, setting it explicitly to */
+ /* zero. */
+ if ( FT_ALLOC( font->family_name, family_size + 1 ) )
+ goto Fail;
+
+ FT_MEM_COPY( font->family_name,
+ font->fnt_frame + font->header.face_name_offset,
+ family_size );
+
+ font->family_name[family_size] = '\0';
+
+ if ( FT_REALLOC( font->family_name,
+ family_size,
+ ft_strlen( font->family_name ) + 1 ) )
+ goto Fail;
+
+ root->family_name = font->family_name;
+ root->style_name = (char *)"Regular";
+
+ if ( root->style_flags & FT_STYLE_FLAG_BOLD )
+ {
+ if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
+ root->style_name = (char *)"Bold Italic";
+ else
+ root->style_name = (char *)"Bold";
+ }
+ else if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
+ root->style_name = (char *)"Italic";
+ }
+ goto Exit;
+
+ Fail:
+ FNT_Face_Done( face );
+
+ Exit:
+ return error;
+ }
+
+
+ static FT_Error
+ FNT_Size_Select( FT_Size size )
+ {
+ FNT_Face face = (FNT_Face)size->face;
+ FT_WinFNT_Header header = &face->font->header;
+
+
+ FT_Select_Metrics( size->face, 0 );
+
+ size->metrics.ascender = header->ascent * 64;
+ size->metrics.descender = -( header->pixel_height -
+ header->ascent ) * 64;
+ size->metrics.max_advance = header->max_width * 64;
+
+ return FNT_Err_Ok;
+ }
+
+
+ static FT_Error
+ FNT_Size_Request( FT_Size size,
+ FT_Size_Request req )
+ {
+ FNT_Face face = (FNT_Face)size->face;
+ FT_WinFNT_Header header = &face->font->header;
+ FT_Bitmap_Size* bsize = size->face->available_sizes;
+ FT_Error error = FNT_Err_Invalid_Pixel_Size;
+ FT_Long height;
+
+
+ height = FT_REQUEST_HEIGHT( req );
+ height = ( height + 32 ) >> 6;
+
+ switch ( req->type )
+ {
+ case FT_SIZE_REQUEST_TYPE_NOMINAL:
+ if ( height == ( ( bsize->y_ppem + 32 ) >> 6 ) )
+ error = FNT_Err_Ok;
+ break;
+
+ case FT_SIZE_REQUEST_TYPE_REAL_DIM:
+ if ( height == header->pixel_height )
+ error = FNT_Err_Ok;
+ break;
+
+ default:
+ error = FNT_Err_Unimplemented_Feature;
+ break;
+ }
+
+ if ( error )
+ return error;
+ else
+ return FNT_Size_Select( size );
+ }
+
+
+ static FT_Error
+ FNT_Load_Glyph( FT_GlyphSlot slot,
+ FT_Size size,
+ FT_UInt glyph_index,
+ FT_Int32 load_flags )
+ {
+ FNT_Face face = (FNT_Face)FT_SIZE_FACE( size );
+ FNT_Font font = face->font;
+ FT_Error error = FNT_Err_Ok;
+ FT_Byte* p;
+ FT_Int len;
+ FT_Bitmap* bitmap = &slot->bitmap;
+ FT_ULong offset;
+ FT_Bool new_format;
+
+ FT_UNUSED( load_flags );
+
+
+ if ( !face || !font ||
+ glyph_index >= (FT_UInt)( FT_FACE( face )->num_glyphs ) )
+ {
+ error = FNT_Err_Invalid_Argument;
+ goto Exit;
+ }
+
+ if ( glyph_index > 0 )
+ glyph_index--; /* revert to real index */
+ else
+ glyph_index = font->header.default_char; /* the .notdef glyph */
+
+ new_format = FT_BOOL( font->header.version == 0x300 );
+ len = new_format ? 6 : 4;
+
+ /* jump to glyph entry */
+ p = font->fnt_frame + ( new_format ? 148 : 118 ) + len * glyph_index;
+
+ bitmap->width = FT_NEXT_SHORT_LE( p );
+
+ if ( new_format )
+ offset = FT_NEXT_ULONG_LE( p );
+ else
+ offset = FT_NEXT_USHORT_LE( p );
+
+ if ( offset >= font->header.file_size )
+ {
+ FT_TRACE2(( "invalid FNT offset!\n" ));
+ error = FNT_Err_Invalid_File_Format;
+ goto Exit;
+ }
+
+ /* jump to glyph data */
+ p = font->fnt_frame + /* font->header.bits_offset */ + offset;
+
+ /* allocate and build bitmap */
+ {
+ FT_Memory memory = FT_FACE_MEMORY( slot->face );
+ FT_Int pitch = ( bitmap->width + 7 ) >> 3;
+ FT_Byte* column;
+ FT_Byte* write;
+
+
+ bitmap->pitch = pitch;
+ bitmap->rows = font->header.pixel_height;
+ bitmap->pixel_mode = FT_PIXEL_MODE_MONO;
+
+ if ( offset + pitch * bitmap->rows >= font->header.file_size )
+ {
+ FT_TRACE2(( "invalid bitmap width\n" ));
+ error = FNT_Err_Invalid_File_Format;
+ goto Exit;
+ }
+
+ /* note: since glyphs are stored in columns and not in rows we */
+ /* can't use ft_glyphslot_set_bitmap */
+ if ( FT_ALLOC_MULT( bitmap->buffer, pitch, bitmap->rows ) )
+ goto Exit;
+
+ column = (FT_Byte*)bitmap->buffer;
+
+ for ( ; pitch > 0; pitch--, column++ )
+ {
+ FT_Byte* limit = p + bitmap->rows;
+
+
+ for ( write = column; p < limit; p++, write += bitmap->pitch )
+ *write = *p;
+ }
+ }
+
+ slot->internal->flags = FT_GLYPH_OWN_BITMAP;
+ slot->bitmap_left = 0;
+ slot->bitmap_top = font->header.ascent;
+ slot->format = FT_GLYPH_FORMAT_BITMAP;
+
+ /* now set up metrics */
+ slot->metrics.width = bitmap->width << 6;
+ slot->metrics.height = bitmap->rows << 6;
+ slot->metrics.horiAdvance = bitmap->width << 6;
+ slot->metrics.horiBearingX = 0;
+ slot->metrics.horiBearingY = slot->bitmap_top << 6;
+
+ ft_synthesize_vertical_metrics( &slot->metrics,
+ bitmap->rows << 6 );
+
+ Exit:
+ return error;
+ }
+
+
+ static FT_Error
+ winfnt_get_header( FT_Face face,
+ FT_WinFNT_HeaderRec *aheader )
+ {
+ FNT_Font font = ((FNT_Face)face)->font;
+
+
+ *aheader = font->header;
+
+ return 0;
+ }
+
+
+ static const FT_Service_WinFntRec winfnt_service_rec =
+ {
+ winfnt_get_header
+ };
+
+ /*
+ * SERVICE LIST
+ *
+ */
+
+ static const FT_ServiceDescRec winfnt_services[] =
+ {
+ { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_WINFNT },
+ { FT_SERVICE_ID_WINFNT, &winfnt_service_rec },
+ { NULL, NULL }
+ };
+
+
+ static FT_Module_Interface
+ winfnt_get_service( FT_Driver driver,
+ const FT_String* service_id )
+ {
+ FT_UNUSED( driver );
+
+ return ft_service_list_lookup( winfnt_services, service_id );
+ }
+
+
+
+
+ FT_CALLBACK_TABLE_DEF
+ const FT_Driver_ClassRec winfnt_driver_class =
+ {
+ {
+ FT_MODULE_FONT_DRIVER |
+ FT_MODULE_DRIVER_NO_OUTLINES,
+ sizeof ( FT_DriverRec ),
+
+ "winfonts",
+ 0x10000L,
+ 0x20000L,
+
+ 0,
+
+ (FT_Module_Constructor)0,
+ (FT_Module_Destructor) 0,
+ (FT_Module_Requester) winfnt_get_service
+ },
+
+ sizeof( FNT_FaceRec ),
+ sizeof( FT_SizeRec ),
+ sizeof( FT_GlyphSlotRec ),
+
+ (FT_Face_InitFunc) FNT_Face_Init,
+ (FT_Face_DoneFunc) FNT_Face_Done,
+ (FT_Size_InitFunc) 0,
+ (FT_Size_DoneFunc) 0,
+ (FT_Slot_InitFunc) 0,
+ (FT_Slot_DoneFunc) 0,
+
+#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
+ ft_stub_set_char_sizes,
+ ft_stub_set_pixel_sizes,
+#endif
+ (FT_Slot_LoadFunc) FNT_Load_Glyph,
+
+ (FT_Face_GetKerningFunc) 0,
+ (FT_Face_AttachFunc) 0,
+ (FT_Face_GetAdvancesFunc) 0,
+
+ (FT_Size_RequestFunc) FNT_Size_Request,
+ (FT_Size_SelectFunc) FNT_Size_Select
+ };
+
+
+/* END */