windows-nt/Source/XPSP1/NT/base/ntsetup/textmode/spddlang/fe/fefont.c

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2020-09-26 03:20:57 -05:00
/*++
Copyright (c) 1993 Microsoft Corporation
Module Name:
fefont.c
Abstract:
Text setup display support for FarEast text output.
Author:
Hideyuki Nagase (hideyukn) 01-July-1994
Revision History:
--*/
#include <precomp.h>
#pragma hdrstop
#define FE_FONT_FILE_NAME L"BOOTFONT.BIN"
//
// FontFile image information
//
PVOID pvFontFileView = NULL;
ULONG ulFontFileSize = 0L;
BOOLEAN FontFileViewAllocated = FALSE;
//
// Font Glyph information
//
BOOTFONTBIN_HEADER BootFontHeader;
PUCHAR SbcsImages;
PUCHAR DbcsImages;
//
// Graphics Character image 19x8.
//
UCHAR GraphicsCharImage[0x20][19] = {
/* 0x00 */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x01 */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xC0, 0xDF,
0xD8, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB },
/* 0x02 */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x03, 0xFB,
0x1B, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB },
/* 0x03 */ { 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xD8, 0xDF,
0xC0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x04 */ { 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0x1B, 0xFB,
0x03, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x05 */ { 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB,
0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB },
/* 0x06 */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0xFF,
0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x07 */ { 0xFF, 0xFF, 0xFF, 0xF7, 0xF7, 0xF7, 0xF7, 0xF7, 0xF7,
0xF7, 0xF7, 0xF7, 0xC1, 0xE3, 0xE3, 0xF7, 0xFF, 0xFF, 0xFF },
/* 0x08 */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x09 */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xE7, 0xDB, 0xDB, 0xBD,
0xBD, 0xBD, 0xBD, 0xDB, 0xDB, 0xE7, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x0a */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x0b */ { 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0x7D, 0x39, 0x55, 0x55,
0x6D, 0x6D, 0x55, 0x55, 0x39, 0x7D, 0x01, 0xFF, 0xFF, 0xFF },
/* 0x0c */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x0d */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x0e */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0xFF, 0xFF },
/* 0x0f */ { 0xFF, 0xFF, 0xFF, 0xB6, 0xB6, 0xD5, 0xC9, 0xEB, 0xDD,
0x1C, 0xDD, 0xEB, 0xC9, 0xD5, 0xB6, 0xB6, 0xFF, 0xFF, 0xFF },
/* 0x10 */ { 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0x18, 0xFF,
0x18, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB },
/* 0x11 */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x12 */ { 0xFF, 0xFF, 0xFF, 0xF7, 0xE3, 0xE3, 0xC1, 0xF7, 0xF7,
0xF7, 0xF7, 0xF7, 0xC1, 0xE3, 0xE3, 0xF7, 0xFF, 0xFF, 0xFF },
/* 0x13 */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x14 */ { 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55,
0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55 },
/* 0x15 */ { 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0x18, 0xFF,
0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x16 */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0xFF,
0x18, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB },
/* 0x17 */ { 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0x1B, 0xFB,
0x1B, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB },
/* 0x18 */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x19 */ { 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xD8, 0xDF,
0xD8, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB, 0xDB },
/* 0x1a */ { 0xFF, 0xFF, 0xAA, 0xFF, 0x55, 0xFF, 0xAA, 0xFF, 0x55,
0xFF, 0xAA, 0xFF, 0x55, 0xFF, 0xAA, 0xFF, 0x55, 0xFF, 0xAA },
/* 0x1b */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFD, 0xFD, 0xFD, 0xFD, 0xDD,
0x9D, 0x01, 0x9F, 0xDF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x1c */ { 0xFF, 0xFF, 0xFF, 0xF7, 0xE3, 0xE3, 0xC1, 0xF7, 0xF7,
0xF7, 0xF7, 0xF7, 0xF7, 0xF7, 0xF7, 0xF7, 0xFF, 0xFF, 0xFF },
/* 0x1d */ { 0xF7, 0xF7, 0xF7, 0xF7, 0xF7, 0xF7, 0xF7, 0xF7, 0xF7,
0xF7, 0xF7, 0xF7, 0xF7, 0xF7, 0xF7, 0xF7, 0xF7, 0xF7, 0xF7 },
/* 0x1e */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFB,
0xF9, 0x80, 0xF9, 0xfB, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF },
/* 0x1f */ { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xDF,
0x9F, 0x01, 0x9F, 0xDF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }
};
BOOLEAN
FEDbcsFontInitGlyphs(
IN PCWSTR BootDevicePath,
IN PCWSTR DirectoryOnBootDevice,
IN PVOID BootFontImage OPTIONAL,
IN ULONG BootFontImageLength OPTIONAL
)
{
WCHAR NtFEFontPath[129];
BOOLEAN bRet;
NTSTATUS NtStatus;
PVOID pvFontFileOnDisk = NULL;
HANDLE hFontFile = 0 ,
hFontSection = 0;
if (BootFontImage && BootFontImageLength) {
//
// Use the loader passed bootfont.bin image as it is (if one exists)
//
pvFontFileView = BootFontImage;
ulFontFileSize = BootFontImageLength;
FontFileViewAllocated = FALSE;
} else {
//
// Build FontFile path.
//
wcscpy( NtFEFontPath,BootDevicePath);
if( NtFEFontPath[ wcslen(NtFEFontPath) - 1 ] != L'\\' )
{
wcscat( NtFEFontPath , L"\\" );
}
wcscat( NtFEFontPath , FE_FONT_FILE_NAME );
//
// Check the font is exist
//
bRet = SpFileExists( NtFEFontPath , FALSE );
if( !bRet ) {
//
// It's not in the root of our BootDevice. Check the
// DirectoryOnBootDevice path too before we fail.
//
wcscpy( NtFEFontPath,BootDevicePath);
wcscat( NtFEFontPath,DirectoryOnBootDevice);
if( NtFEFontPath[ wcslen(NtFEFontPath) - 1 ] != L'\\' )
{
wcscat( NtFEFontPath , L"\\" );
}
wcscat( NtFEFontPath , FE_FONT_FILE_NAME );
//
// Check the font is exist
//
bRet = SpFileExists( NtFEFontPath , FALSE );
if( !bRet ) {
KdPrint(("SETUP:FarEast font file (%ws) is not exist\n",NtFEFontPath));
return( FALSE );
}
}
//
// Read and Map fontfile into Memory.
//
NtStatus = SpOpenAndMapFile(
NtFEFontPath , // IN PWSTR FileName,
&hFontFile , // OUT PHANDLE FileHandle,
&hFontSection , // OUT PHANDLE SectionHandle,
&pvFontFileOnDisk , // OUT PVOID *ViewBase,
&ulFontFileSize , // OUT PULONG FileSize,
FALSE // IN BOOLEAN WriteAccess
);
if( !NT_SUCCESS(NtStatus) ) {
KdPrint(("SETUP:Fail to map FontFile\n"));
return( FALSE );
}
KdPrint(("FONTFILE ON DISK CHECK\n"));
KdPrint((" pvFontFileView - %x\n",pvFontFileOnDisk));
KdPrint((" ulFontFileSize - %d\n",ulFontFileSize));
//
// Allocate buffer for FontFile image.
//
pvFontFileView = SpMemAlloc( ulFontFileSize );
FontFileViewAllocated = TRUE;
//
// Copy image to local beffer
//
RtlCopyMemory( pvFontFileView , pvFontFileOnDisk , ulFontFileSize );
//
// Unmap/Close fontfile.
//
SpUnmapFile( hFontSection , pvFontFileOnDisk );
ZwClose( hFontFile );
}
KdPrint(("FONTFILE ON MEMORY CHECK\n"));
KdPrint((" pvFontFileView - %x\n",pvFontFileView));
KdPrint((" ulFontFileSize - %d\n",ulFontFileSize));
//
// Check fontfile validation (at least, we should have font header).
//
if( ulFontFileSize < sizeof(BOOTFONTBIN_HEADER) )
{
KdPrint(("SETUPDD:FontFile Size < sizeof(BOOTFONTBIN_HEADER)\n"));
return( FALSE );
}
//
// Copy header to local...
//
RtlCopyMemory((PCHAR)&BootFontHeader,
(PCHAR)pvFontFileView,
sizeof(BOOTFONTBIN_HEADER));
//
// Check font signature.
//
if( BootFontHeader.Signature != BOOTFONTBIN_SIGNATURE )
{
KdPrint(("SETUPDD:Invalid font signature.\n"));
return( FALSE );
}
SbcsImages = (PUCHAR)pvFontFileView + BootFontHeader.SbcsOffset;
DbcsImages = (PUCHAR)pvFontFileView + BootFontHeader.DbcsOffset;
//
// Dump Physical FontGlyph information
//
KdPrint(("FONT GLYPH INFORMATION\n"));
KdPrint((" LanguageId - %d\n",BootFontHeader.LanguageId));
KdPrint((" Width(S) - %d\n",BootFontHeader.CharacterImageSbcsWidth));
KdPrint((" Width(D) - %d\n",BootFontHeader.CharacterImageDbcsWidth));
KdPrint((" Height - %d\n",BootFontHeader.CharacterImageHeight));
KdPrint((" TopPad - %d\n",BootFontHeader.CharacterTopPad));
KdPrint((" BottomPad - %d\n",BootFontHeader.CharacterBottomPad));
KdPrint((" SbcsOffset - %x\n",BootFontHeader.SbcsOffset));
KdPrint((" DbcsOffset - %x\n",BootFontHeader.DbcsOffset));
KdPrint((" SbcsImages - %x\n",SbcsImages));
KdPrint((" DbcsImages - %x\n",DbcsImages));
//
// Check Language ID..
//
switch (BootFontHeader.LanguageId) {
case 0x411: // Japan
FEFontDefaultChar = 0x8140;
break;
case 0x404: // Taiwan
case 0x804: // PRC
case 0x412: // Korea
FEFontDefaultChar = 0xa1a1;
break;
default: // Illigal language Id
KdPrint(("SETUPDD:Invalid Language ID\n"));
return( FALSE );
}
//
// Check font file size, more strictly..
//
if( ulFontFileSize < (sizeof(BOOTFONTBIN_HEADER) +
BootFontHeader.SbcsEntriesTotalSize +
BootFontHeader.DbcsEntriesTotalSize) ) {
KdPrint(("SETUPDD:Invalid file size\n"));
return( FALSE );
}
//
// Check font image size... SBCS 16x8 : DBCS 16x16.
//
if( (BootFontHeader.CharacterImageSbcsWidth != 8 ) ||
(BootFontHeader.CharacterImageDbcsWidth != 16 ) ||
(BootFontHeader.CharacterImageHeight != 16 ) ) {
KdPrint(("SETUPDD:Invalid font size\n"));
return( FALSE );
}
KdPrint(("Everything is well done...\n"));
return( TRUE );
}
VOID
FEDbcsFontFreeGlyphs(
VOID
)
{
if (FontFileViewAllocated) {
SpMemFree(pvFontFileView);
}
}
PUCHAR
DbcsFontGetDbcsFontChar(
USHORT Code
)
/*++
Routine Description:
Gets the font image for DBCS char.
Arguments:
Code - DBCS char code.
Return Value:
Pointer to font image, or else NULL.
--*/
{
int Min,Max,Mid;
int Multiplier;
int Index;
USHORT code;
Min = 0;
Max = BootFontHeader.NumDbcsChars;
// multiplier = 2 (for index) +
// 2 * height +
// 2 (for unicode encoding)
//
Multiplier = 2 + (2*BootFontHeader.CharacterImageHeight) + 2;
//
// Do a binary search for the image.
// Format of table:
// First 2 bytes contain the DBCS char code.
// Next (2 * CharacterImageHeight) bytes are the char image.
// Next 2 bytes are for unicode version.
//
while(Max >= Min) {
Mid = (Max + Min) / 2;
Index = Mid*Multiplier;
code = (DbcsImages[Index] << 8) | DbcsImages[Index+1];
if(Code == code) {
return(DbcsImages+Index+2);
}
if(Code < code) {
Max = Mid - 1;
} else {
Min = Mid + 1;
}
}
//
// ERROR: No image found.
//
return(NULL);
}
PUCHAR
DbcsFontGetSbcsFontChar(
UCHAR Code
)
/*++
Routine Description:
Gets the font image for SBCS char.
Arguments:
Code - SBCS char code.
Return Value:
Pointer to font image, or else NULL.
--*/
{
int Max,Min,Mid;
int Multiplier;
int Index;
Min = 0;
Max = BootFontHeader.NumSbcsChars;
// multiplier = 1 (for index) +
// height +
// 2 (for unicode encoding)
//
Multiplier = 1 + (BootFontHeader.CharacterImageHeight) + 2;
//
// Do a binary search for the image.
// Format of table:
// First byte contains the SBCS char code.
// Next (CharacterImageHeight) bytes are the char image.
// Next 2 bytes are for unicode version.
//
while(Max >= Min) {
Mid = (Max + Min) / 2;
Index = Mid*Multiplier;
if(Code == SbcsImages[Index]) {
return(SbcsImages+Index+1);
}
if(Code < SbcsImages[Index]) {
Max = Mid - 1;
} else {
Min = Mid + 1;
}
}
//
// ERROR: No image found.
//
return(NULL);
}
PBYTE
DbcsFontGetGraphicsChar(
UCHAR Char
)
{
if (Char >= 0 && Char < 0x20)
return(GraphicsCharImage[Char]);
else
return(NULL);
}
BOOLEAN
DbcsFontIsGraphicsChar(
UCHAR Char
)
{
if (Char >= 0 && Char < 0x20)
return(TRUE);
else
return(FALSE);
}
BOOLEAN
DbcsFontIsDBCSLeadByte(
IN UCHAR c
)
/*++
Routine Description:
Checks to see if a char is a DBCS leadbyte.
Arguments:
c - char to check if leadbyte or not.
Return Value:
TRUE - Leadbyte.
FALSE - Non-Leadbyte.
--*/
{
int i;
//
// Check to see if char is in leadbyte range.
//
// NOTE: If (CHAR)(0) is a valid leadbyte,
// this routine will fail.
//
for( i = 0; BootFontHeader.DbcsLeadTable[i]; i += 2 ) {
if ( BootFontHeader.DbcsLeadTable[i] <= c &&
BootFontHeader.DbcsLeadTable[i+1] >= c )
return( TRUE );
}
return( FALSE );
}