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add support for loading the PSF font-file-format as understood by version 0.94

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and above of the Linux console utilities ('kbd')

svn path=/trunk/; revision=31939
This commit is contained in:
Christoph von Wittich 2008-01-22 09:42:37 +00:00
parent 7776978a09
commit 7901f352e6
1 changed files with 42 additions and 9 deletions
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51
reactos/drivers/setup/blue/font.c
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@ -60,6 +60,7 @@ NTSTATUS ExtractFont(UINT CodePage, PUCHAR FontBitField)
NTSTATUS Status = STATUS_SUCCESS; NTSTATUS Status = STATUS_SUCCESS;
CHAR FileHeader[5]; CHAR FileHeader[5];
CHAR Header[5]; CHAR Header[5];
CHAR PsfHeader[3];
CHAR FileName[BUFFER_SIZE]; CHAR FileName[BUFFER_SIZE];
ULONG Length; ULONG Length;
IO_STATUS_BLOCK IoStatusBlock; IO_STATUS_BLOCK IoStatusBlock;
@ -75,6 +76,7 @@ NTSTATUS ExtractFont(UINT CodePage, PUCHAR FontBitField)
RtlZeroMemory(FileHeader, sizeof(FileHeader)); RtlZeroMemory(FileHeader, sizeof(FileHeader));
RtlZeroMemory(Header, sizeof(Header)); RtlZeroMemory(Header, sizeof(Header));
RtlZeroMemory(PsfHeader, sizeof(PsfHeader));
RtlInitUnicodeString(&LinkName, RtlInitUnicodeString(&LinkName,
L"\\SystemRoot"); L"\\SystemRoot");
@ -114,40 +116,71 @@ NTSTATUS ExtractFont(UINT CodePage, PUCHAR FontBitField)
FILE_OPEN, FILE_OPEN,
FILE_SYNCHRONOUS_IO_NONALERT, FILE_SYNCHRONOUS_IO_NONALERT,
NULL, 0); NULL, 0);
if(NT_SUCCESS(Status)) {
ByteOffset.LowPart = ByteOffset.HighPart = 0;
if(NT_SUCCESS(Status))
{
sprintf(Header, "PK%c%c", 3, 4); sprintf(Header, "PK%c%c", 3, 4);
Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock, Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock,
FileHeader, 4, &ByteOffset, NULL); FileHeader, 4, &ByteOffset, NULL);
ByteOffset.LowPart += 4; ByteOffset.LowPart += 4;
if(NT_SUCCESS(Status)) if(NT_SUCCESS(Status))
{ {
while(strcmp(FileHeader, Header) == 0) while(strcmp(FileHeader, Header) == 0)
{ {
Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock, Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock,
&LocalHeader, sizeof(ZIP_LOCAL_HEADER), &ByteOffset, NULL); &LocalHeader, sizeof(ZIP_LOCAL_HEADER), &ByteOffset, NULL);
ByteOffset.LowPart += sizeof(ZIP_LOCAL_HEADER); ByteOffset.LowPart += sizeof(ZIP_LOCAL_HEADER);
/* DbgPrint("%ld\n", LocalHeader.FileNameLength); */
if (LocalHeader.FileNameLength < BUFFER_SIZE) if (LocalHeader.FileNameLength < BUFFER_SIZE)
{ {
RtlZeroMemory(FileName, BUFFER_SIZE); RtlZeroMemory(FileName, BUFFER_SIZE);
Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock, Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock,
FileName, LocalHeader.FileNameLength, &ByteOffset, NULL); FileName, LocalHeader.FileNameLength, &ByteOffset, NULL);
} }
ByteOffset.LowPart += LocalHeader.FileNameLength; ByteOffset.LowPart += LocalHeader.FileNameLength;
/* DbgPrint("%s\n", FileName); */
if (LocalHeader.ExtraFieldLength > 0) if (LocalHeader.ExtraFieldLength > 0)
ByteOffset.LowPart += LocalHeader.ExtraFieldLength; ByteOffset.LowPart += LocalHeader.ExtraFieldLength;
if (atoi(FileName) == CodePage) if (atoi(FileName) == CodePage)
{ {
if (LocalHeader.CompressedSize == 2048) if (LocalHeader.CompressedSize == 2048)
{
/* we got it, raw font */
Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock, Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock,
FontBitField, LocalHeader.CompressedSize, &ByteOffset, NULL); FontBitField, LocalHeader.CompressedSize, &ByteOffset, NULL);
ZwClose(Handle);
return STATUS_SUCCESS;
}
else if (LocalHeader.CompressedSize > 2048)
{
sprintf(PsfHeader, "%c%c", 0x36, 0x04);
/* maybe linux psf format */
Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock,
FileHeader, 4, &ByteOffset, NULL);
ByteOffset.LowPart += 4;
if(strncmp(FileHeader, PsfHeader, 2) == 0)
{
/* only load fonts with a size of 8
and filemode 0 (256 characters, no unicode_data) */
if ((FileHeader[3] == 8) && (FileHeader[4] == 0))
{
Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock,
FontBitField, 2048, &ByteOffset, NULL);
ZwClose(Handle);
return STATUS_SUCCESS;
}
else
DbgPrint("Wrong fontsize or too many characters");
}
}
/* invalid data */
ZwClose(Handle); ZwClose(Handle);
return STATUS_SUCCESS; return STATUS_NO_MATCH;
} }
ByteOffset.LowPart += LocalHeader.CompressedSize; ByteOffset.LowPart += LocalHeader.CompressedSize;
Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock, Status = ZwReadFile(Handle, NULL, NULL, NULL, &IoStatusBlock,
FileHeader, 4, &ByteOffset, NULL); FileHeader, 4, &ByteOffset, NULL);
ByteOffset.LowPart += 4; ByteOffset.LowPart += 4;
DbgPrint("%s\n", FileHeader); DbgPrint("%s\n", FileHeader);
} }