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493 lines
12 KiB
C
493 lines
12 KiB
C
/** @file
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Language settings
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Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "Language.h"
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#include "FrontPage.h"
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EFI_GUID mFontPackageGuid = {
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0x78941450, 0x90ab, 0x4fb1, {0xb7, 0x5f, 0x58, 0x92, 0x14, 0xe2, 0x4a, 0xc}
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};
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#define NARROW_GLYPH_NUMBER 8
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#define WIDE_GLYPH_NUMBER 75
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typedef struct {
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///
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/// This 4-bytes total array length is required by HiiAddPackages()
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///
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UINT32 Length;
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//
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// This is the Font package definition
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//
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EFI_HII_PACKAGE_HEADER Header;
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UINT16 NumberOfNarrowGlyphs;
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UINT16 NumberOfWideGlyphs;
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EFI_NARROW_GLYPH NarrowArray[NARROW_GLYPH_NUMBER];
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EFI_WIDE_GLYPH WideArray[WIDE_GLYPH_NUMBER];
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} FONT_PACK_BIN;
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FONT_PACK_BIN mFontBin = {
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sizeof (FONT_PACK_BIN),
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{
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sizeof (FONT_PACK_BIN) - sizeof (UINT32),
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EFI_HII_PACKAGE_SIMPLE_FONTS,
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},
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NARROW_GLYPH_NUMBER,
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0,
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{ // Narrow Glyphs
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{
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0x05d0,
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0x00,
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{
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0x00,
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0x00,
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0x00,
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0x4E,
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0x6E,
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0x62,
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0x32,
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0x32,
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0x3C,
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0x68,
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0x4C,
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0x4C,
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0x46,
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0x76,
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0x72,
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0x00,
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0x00,
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0x00,
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0x00
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}
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},
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{
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0x05d1,
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0x00,
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{
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0x00,
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0x00,
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0x00,
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0x78,
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0x7C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x7E,
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0x7E,
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0x00,
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0x00,
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0x00,
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0x00
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}
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},
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{
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0x05d2,
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0x00,
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{
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0x00,
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0x00,
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0x00,
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0x78,
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0x7C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x1C,
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0x3E,
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0x66,
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0x66,
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0x00,
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0x00,
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0x00,
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0x00
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}
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},
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{
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0x05d3,
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0x00,
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{
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0x00,
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0x00,
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0x00,
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0x7E,
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0x7E,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x00,
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0x00,
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0x00,
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0x00
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}
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},
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{
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0x05d4,
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0x00,
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{
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0x00,
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0x00,
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0x00,
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0x7C,
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0x7E,
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0x06,
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0x06,
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0x06,
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0x06,
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0x66,
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0x66,
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0x66,
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0x66,
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0x66,
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0x66,
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0x00,
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0x00,
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0x00,
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0x00
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}
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},
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{
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0x05d5,
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0x00,
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{
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0x00,
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0x00,
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0x00,
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0x3C,
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0x3C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x0C,
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0x00,
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0x00,
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0x00,
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0x00
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}
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},
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{
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0x05d6,
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0x00,
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{
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0x00,
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0x00,
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0x00,
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0x38,
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0x38,
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0x1E,
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0x1E,
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0x18,
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0x18,
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0x18,
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0x18,
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0x18,
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0x18,
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0x18,
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0x18,
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0x00,
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0x00,
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0x00,
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0x00
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}
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},
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{
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0x0000,
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0x00,
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{
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0x00,
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0x00,
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0x00,
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0x00,
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0x00,
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0x00,
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0x00,
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0x00,
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0x00,
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0x00,
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0x00,
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0x00,
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0x00,
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0x00,
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0x00,
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0x00,
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0x00,
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0x00,
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0x00
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}
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}
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},
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{ { 0, 0, { 0, }, { 0, }, { 0, }, }, },
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};
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/**
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Routine to export glyphs to the HII database. This is in addition to whatever is defined in the Graphics Console driver.
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**/
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VOID
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ExportFonts (
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VOID
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)
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{
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EFI_HII_HANDLE HiiHandle;
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HiiHandle = HiiAddPackages (
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&mFontPackageGuid,
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gImageHandle,
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&mFontBin,
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NULL
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);
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ASSERT (HiiHandle != NULL);
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}
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/**
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Get next language from language code list (with separator ';').
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If LangCode is NULL, then ASSERT.
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If Lang is NULL, then ASSERT.
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@param LangCode On input: point to first language in the list. On
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output: point to next language in the list, or
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NULL if no more language in the list.
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@param Lang The first language in the list.
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**/
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VOID
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EFIAPI
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GetNextLanguage (
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IN OUT CHAR8 **LangCode,
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OUT CHAR8 *Lang
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)
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{
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UINTN Index;
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CHAR8 *StringPtr;
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ASSERT (LangCode != NULL);
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ASSERT (*LangCode != NULL);
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ASSERT (Lang != NULL);
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Index = 0;
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StringPtr = *LangCode;
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while (StringPtr[Index] != 0 && StringPtr[Index] != ';') {
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Index++;
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}
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CopyMem(Lang, StringPtr, Index);
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Lang[Index] = 0;
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if (StringPtr[Index] == ';') {
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Index++;
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}
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*LangCode = StringPtr + Index;
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}
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/**
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Check if lang is in supported language codes according to language string.
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This code is used to check if lang is in in supported language codes. It can handle
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RFC4646 and ISO639 language tags.
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In ISO639 language tags, take 3-characters as a delimitation to find matched string.
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In RFC4646 language tags, take semicolon as a delimitation to find matched string.
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For example:
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SupportedLang = "engfraengfra"
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Iso639Language = TRUE
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Lang = "eng", the return value is "TRUE", or
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Lang = "chs", the return value is "FALSE".
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Another example:
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SupportedLang = "en;fr;en-US;fr-FR"
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Iso639Language = FALSE
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Lang = "en", the return value is "TRUE", or
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Lang = "zh", the return value is "FALSE".
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@param SupportedLang Platform supported language codes.
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@param Lang Configured language.
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@param Iso639Language A bool value to signify if the handler is operated on ISO639 or RFC4646.
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@retval TRUE lang is in supported language codes.
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@retval FALSE lang is not in supported language codes.
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**/
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BOOLEAN
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IsLangInSupportedLangCodes(
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IN CHAR8 *SupportedLang,
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IN CHAR8 *Lang,
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IN BOOLEAN Iso639Language
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)
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{
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UINTN Index;
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UINTN CompareLength;
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UINTN LanguageLength;
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if (Iso639Language) {
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CompareLength = ISO_639_2_ENTRY_SIZE;
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for (Index = 0; Index < AsciiStrLen(SupportedLang); Index += CompareLength) {
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if (AsciiStrnCmp(Lang, SupportedLang + Index, CompareLength) == 0) {
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//
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// Successfully find the Lang string in SupportedLang string.
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//
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return TRUE;
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}
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}
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return FALSE;
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} else {
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//
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// Compare RFC4646 language code
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//
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for (LanguageLength = 0; Lang[LanguageLength] != '\0'; LanguageLength++);
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for (; *SupportedLang != '\0'; SupportedLang += CompareLength) {
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//
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// Skip ';' characters in SupportedLang
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//
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for (; *SupportedLang != '\0' && *SupportedLang == ';'; SupportedLang++);
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//
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// Determine the length of the next language code in SupportedLang
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//
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for (CompareLength = 0; SupportedLang[CompareLength] != '\0' && SupportedLang[CompareLength] != ';'; CompareLength++);
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if ((CompareLength == LanguageLength) &&
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(AsciiStrnCmp(Lang, SupportedLang, CompareLength) == 0)) {
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//
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// Successfully find the Lang string in SupportedLang string.
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//
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return TRUE;
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}
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}
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return FALSE;
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}
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}
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/**
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Initialize Lang or PlatformLang variable, if Lang or PlatformLang variable is not found,
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or it has been set to an unsupported value(not one of platform supported language codes),
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set the default language code to it.
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@param LangName Language name, L"Lang" or L"PlatformLang".
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@param SupportedLang Platform supported language codes.
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@param DefaultLang Default language code.
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@param Iso639Language A bool value to signify if the handler is operated on ISO639 or RFC4646,
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TRUE for L"Lang" LangName or FALSE for L"PlatformLang" LangName.
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**/
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VOID
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InitializeLangVariable (
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IN CHAR16 *LangName,
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IN CHAR8 *SupportedLang,
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IN CHAR8 *DefaultLang,
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IN BOOLEAN Iso639Language
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)
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{
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CHAR8 *Lang;
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//
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// Find current Lang or PlatformLang from EFI Variable.
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//
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GetEfiGlobalVariable2 (LangName, (VOID **) &Lang, NULL);
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//
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// If Lang or PlatformLang variable is not found,
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// or it has been set to an unsupported value(not one of the supported language codes),
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// set the default language code to it.
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//
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if ((Lang == NULL) || !IsLangInSupportedLangCodes (SupportedLang, Lang, Iso639Language)) {
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//
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// The default language code should be one of the supported language codes.
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//
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ASSERT (IsLangInSupportedLangCodes (SupportedLang, DefaultLang, Iso639Language));
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BdsDxeSetVariableAndReportStatusCodeOnError (
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LangName,
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&gEfiGlobalVariableGuid,
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EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
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AsciiStrSize (DefaultLang),
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DefaultLang
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);
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}
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if (Lang != NULL) {
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FreePool(Lang);
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}
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}
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/**
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Determine the current language that will be used
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based on language related EFI Variables.
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@param LangCodesSettingRequired - If required to set LangCodes variable
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**/
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VOID
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InitializeLanguage (
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BOOLEAN LangCodesSettingRequired
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)
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{
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// EFI_STATUS Status;
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CHAR8 *LangCodes;
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CHAR8 *PlatformLangCodes;
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ExportFonts ();
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LangCodes = (CHAR8 *)PcdGetPtr (PcdUefiVariableDefaultLangCodes);
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PlatformLangCodes = (CHAR8 *)PcdGetPtr (PcdUefiVariableDefaultPlatformLangCodes);
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if (LangCodesSettingRequired) {
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if (!FeaturePcdGet (PcdUefiVariableDefaultLangDeprecate)) {
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//
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// UEFI 2.0 depricated this variable so we support turning it off
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//
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/*Status = */gRT->SetVariable (
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L"LangCodes",
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&gEfiGlobalVariableGuid,
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EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
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AsciiStrSize (LangCodes),
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LangCodes
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);
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}
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/*Status = */gRT->SetVariable (
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L"PlatformLangCodes",
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&gEfiGlobalVariableGuid,
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EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
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AsciiStrSize (PlatformLangCodes),
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PlatformLangCodes
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);
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}
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if (!FeaturePcdGet (PcdUefiVariableDefaultLangDeprecate)) {
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//
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// UEFI 2.0 depricated this variable so we support turning it off
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//
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InitializeLangVariable (L"Lang", LangCodes, (CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultLang), TRUE);
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}
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InitializeLangVariable (L"PlatformLang", PlatformLangCodes, (CHAR8 *) PcdGetPtr (PcdUefiVariableDefaultPlatformLang), FALSE);
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}
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