diff options
Diffstat (limited to 'src/3rdparty/freetype/src/winfonts/winfnt.c')
| -rw-r--r-- | src/3rdparty/freetype/src/winfonts/winfnt.c | 1130 |
1 files changed, 0 insertions, 1130 deletions
diff --git a/src/3rdparty/freetype/src/winfonts/winfnt.c b/src/3rdparty/freetype/src/winfonts/winfnt.c deleted file mode 100644 index 833fb888a..000000000 --- a/src/3rdparty/freetype/src/winfonts/winfnt.c +++ /dev/null @@ -1,1130 +0,0 @@ -/***************************************************************************/ -/* */ -/* 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_Bad_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_Bad_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 ) - gindex = char_code + 1; /* we artificially increase the glyph index; */ - /* FNT_Load_Glyph reverts to the right one */ - 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 = 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 ) - { - if ( face ) - { - FT_Memory 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_Bad_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_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 */ |