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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 */