/*
* NOTE: This function is strongly inspired by ConDrvWriteConsoleOutput...
*/
NTSTATUS NTAPI
ConDrvWriteConsoleOutputVDM(IN PCONSOLE Console,
IN PTEXTMODE_SCREEN_BUFFER Buffer,
IN PCHAR_CELL CharInfo/*Buffer*/,
IN COORD CharInfoSize,
IN OUT PSMALL_RECT WriteRegion,
IN BOOLEAN DrawRegion)
{
SHORT X, Y;
SMALL_RECT ScreenBuffer;
PCHAR_CELL CurCharInfo;
SMALL_RECT CapturedWriteRegion;
PCHAR_INFO Ptr;
if (Console == NULL || Buffer == NULL || CharInfo == NULL || WriteRegion == NULL)
{
return STATUS_INVALID_PARAMETER;
}
/* Validity check */
ASSERT(Console == Buffer->Header.Console);
CapturedWriteRegion = *WriteRegion;
/* Make sure WriteRegion is inside the screen buffer */
ConioInitRect(&ScreenBuffer, 0, 0,
Buffer->ScreenBufferSize.Y - 1, Buffer->ScreenBufferSize.X - 1);
if (!ConioGetIntersection(&CapturedWriteRegion, &ScreenBuffer, &CapturedWriteRegion))
{
/*
* It is okay to have a WriteRegion completely outside
* the screen buffer. No data is written then.
*/
return STATUS_SUCCESS;
}
// CurCharInfo = CharInfo;
for (Y = CapturedWriteRegion.Top; Y <= CapturedWriteRegion.Bottom; ++Y)
{
/**/CurCharInfo = CharInfo + Y * CharInfoSize.X + CapturedWriteRegion.Left;/**/
Ptr = ConioCoordToPointer(Buffer, CapturedWriteRegion.Left, Y);
for (X = CapturedWriteRegion.Left; X <= CapturedWriteRegion.Right; ++X)
{
ConsoleOutputAnsiToUnicodeChar(Console, &Ptr->Char.UnicodeChar, &CurCharInfo->Char);
Ptr->Attributes = CurCharInfo->Attributes;
++Ptr;
++CurCharInfo;
}
}
if (DrawRegion) TermDrawRegion(Console, &CapturedWriteRegion);
*WriteRegion = CapturedWriteRegion;
return STATUS_SUCCESS;
}
NTSTATUS NTAPI
ConDrvFillConsoleOutput(IN PCONSOLE Console,
IN PTEXTMODE_SCREEN_BUFFER Buffer,
IN CODE_TYPE CodeType,
IN CODE_ELEMENT Code,
IN ULONG NumCodesToWrite,
IN PCOORD WriteCoord,
OUT PULONG NumCodesWritten OPTIONAL)
{
ULONG X, Y, Length; // , Written = 0;
PCHAR_INFO Ptr;
if (Console == NULL || Buffer == NULL || WriteCoord == NULL)
{
return STATUS_INVALID_PARAMETER;
}
/* Validity check */
ASSERT(Console == Buffer->Header.Console);
//
// FIXME: Make overflow checks on WriteCoord !!!!!!
//
if (NumCodesWritten) *NumCodesWritten = 0;
if (CodeType == CODE_ASCII)
{
/* Conversion from the ASCII char to the UNICODE char */
CODE_ELEMENT tmp;
ConsoleOutputAnsiToUnicodeChar(Console, &tmp.UnicodeChar, &Code.AsciiChar);
Code = tmp;
}
X = WriteCoord->X;
Y = (WriteCoord->Y + Buffer->VirtualY) % Buffer->ScreenBufferSize.Y;
Length = NumCodesToWrite;
// Ptr = ConioCoordToPointer(Buffer, X, Y); // Doesn't work
// Ptr = &Buffer->Buffer[X + Y * Buffer->ScreenBufferSize.X]; // May work
while (Length--)
{
// Ptr = ConioCoordToPointer(Buffer, X, Y); // Doesn't work either
Ptr = &Buffer->Buffer[X + Y * Buffer->ScreenBufferSize.X];
switch (CodeType)
{
case CODE_ASCII:
case CODE_UNICODE:
Ptr->Char.UnicodeChar = Code.UnicodeChar;
break;
case CODE_ATTRIBUTE:
Ptr->Attributes = Code.Attribute;
break;
}
// ++Ptr;
// Written++;
if (++X == Buffer->ScreenBufferSize.X)
{
X = 0;
if (++Y == Buffer->ScreenBufferSize.Y)
{
Y = 0;
}
}
}
if ((PCONSOLE_SCREEN_BUFFER)Buffer == Console->ActiveBuffer)
{
SMALL_RECT UpdateRect;
ConioComputeUpdateRect(Buffer, &UpdateRect, WriteCoord, NumCodesToWrite);
TermDrawRegion(Console, &UpdateRect);
}
if (NumCodesWritten) *NumCodesWritten = NumCodesToWrite; // Written;
return STATUS_SUCCESS;
}
NTSTATUS NTAPI
ConDrvScrollConsoleScreenBuffer(IN PCONSOLE Console,
IN PTEXTMODE_SCREEN_BUFFER Buffer,
IN BOOLEAN Unicode,
IN PSMALL_RECT ScrollRectangle,
IN BOOLEAN UseClipRectangle,
IN PSMALL_RECT ClipRectangle OPTIONAL,
IN PCOORD DestinationOrigin,
IN CHAR_INFO FillChar)
{
COORD CapturedDestinationOrigin;
SMALL_RECT ScreenBuffer;
SMALL_RECT SrcRegion;
SMALL_RECT DstRegion;
SMALL_RECT UpdateRegion;
SMALL_RECT CapturedClipRectangle;
if (Console == NULL || Buffer == NULL || ScrollRectangle == NULL ||
(UseClipRectangle ? ClipRectangle == NULL : FALSE) || DestinationOrigin == NULL)
{
return STATUS_INVALID_PARAMETER;
}
/* Validity check */
ASSERT(Console == Buffer->Header.Console);
CapturedDestinationOrigin = *DestinationOrigin;
/* Make sure the source rectangle is inside the screen buffer */
ConioInitRect(&ScreenBuffer, 0, 0,
Buffer->ScreenBufferSize.Y - 1,
Buffer->ScreenBufferSize.X - 1);
if (!ConioGetIntersection(&SrcRegion, &ScreenBuffer, ScrollRectangle))
{
return STATUS_SUCCESS;
}
/* If the source was clipped on the left or top, adjust the destination accordingly */
if (ScrollRectangle->Left < 0)
{
CapturedDestinationOrigin.X -= ScrollRectangle->Left;
}
if (ScrollRectangle->Top < 0)
{
CapturedDestinationOrigin.Y -= ScrollRectangle->Top;
}
if (UseClipRectangle)
{
CapturedClipRectangle = *ClipRectangle;
if (!ConioGetIntersection(&CapturedClipRectangle, &CapturedClipRectangle, &ScreenBuffer))
{
return STATUS_SUCCESS;
}
}
else
{
CapturedClipRectangle = ScreenBuffer;
}
ConioInitRect(&DstRegion,
CapturedDestinationOrigin.Y,
CapturedDestinationOrigin.X,
CapturedDestinationOrigin.Y + ConioRectHeight(&SrcRegion) - 1,
CapturedDestinationOrigin.X + ConioRectWidth(&SrcRegion ) - 1);
if (!Unicode)
{
WCHAR tmp;
ConsoleOutputAnsiToUnicodeChar(Console, &tmp, &FillChar.Char.AsciiChar);
FillChar.Char.UnicodeChar = tmp;
}
ConioMoveRegion(Buffer, &SrcRegion, &DstRegion, &CapturedClipRectangle, FillChar);
if ((PCONSOLE_SCREEN_BUFFER)Buffer == Console->ActiveBuffer)
{
ConioGetUnion(&UpdateRegion, &SrcRegion, &DstRegion);
if (ConioGetIntersection(&UpdateRegion, &UpdateRegion, &CapturedClipRectangle))
{
/* Draw update region */
TermDrawRegion(Console, &UpdateRegion);
}
}
return STATUS_SUCCESS;
}
