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[CONSRV] Fix setting the default screenbuffer and console view sizes when creating a new screenbuffer.

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For more information, see:
https://docs.microsoft.com/en-us/windows/console/createconsolescreenbuffer#remarks
This commit is contained in:
Hermès Bélusca-Maïto 2020-02-23 21:45:55 +01:00
parent 309f7e9443
commit 1d3fb3e370
No known key found for this signature in database
GPG key ID: 3B2539C65E7B93D0
5 changed files with 59 additions and 43 deletions
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2
win32ss/user/winsrv/consrv/condrv/conoutput.c
View file

@ -82,7 +82,7 @@ ConDrvCreateScreenBuffer(OUT PCONSOLE_SCREEN_BUFFER* Buffer,
IN ULONG BufferType,
IN PVOID ScreenBufferInfo)
{
NTSTATUS Status = STATUS_SUCCESS;
NTSTATUS Status = STATUS_UNSUCCESSFUL;
if ( Console == NULL || Buffer == NULL ||
(BufferType != CONSOLE_TEXTMODE_BUFFER && BufferType != CONSOLE_GRAPHICS_BUFFER) )

9
win32ss/user/winsrv/consrv/condrv/console.c
View file

@ -185,9 +185,11 @@ ConDrvInitConsole(OUT PCONSOLE* NewConsole,
}
/*
* Fix the screen buffer size if needed. The rule is:
* ScreenBufferSize >= ConsoleSize
* Set and fix the screen buffer size if needed.
* The rule is: ScreenBufferSize >= ConsoleSize
*/
if (ConsoleInfo->ScreenBufferSize.X == 0) ConsoleInfo->ScreenBufferSize.X = 1;
if (ConsoleInfo->ScreenBufferSize.Y == 0) ConsoleInfo->ScreenBufferSize.Y = 1;
if (ConsoleInfo->ScreenBufferSize.X < ConsoleInfo->ConsoleSize.X)
ConsoleInfo->ScreenBufferSize.X = ConsoleInfo->ConsoleSize.X;
if (ConsoleInfo->ScreenBufferSize.Y < ConsoleInfo->ConsoleSize.Y)
@ -224,10 +226,11 @@ ConDrvInitConsole(OUT PCONSOLE* NewConsole,
/* Initialize a new text-mode screen buffer with default settings */
ScreenBufferInfo.ScreenBufferSize = ConsoleInfo->ScreenBufferSize;
ScreenBufferInfo.ViewSize = ConsoleInfo->ConsoleSize;
ScreenBufferInfo.ScreenAttrib = ConsoleInfo->ScreenAttrib;
ScreenBufferInfo.PopupAttrib = ConsoleInfo->PopupAttrib;
ScreenBufferInfo.IsCursorVisible = TRUE;
ScreenBufferInfo.CursorSize = ConsoleInfo->CursorSize;
ScreenBufferInfo.IsCursorVisible = TRUE;
InitializeListHead(&Console->BufferList);
Status = ConDrvCreateScreenBuffer(&NewBuffer,

34
win32ss/user/winsrv/consrv/condrv/text.c
View file

@ -76,6 +76,12 @@ TEXTMODE_BUFFER_Initialize(OUT PCONSOLE_SCREEN_BUFFER* Buffer,
if (Console == NULL || Buffer == NULL || TextModeInfo == NULL)
return STATUS_INVALID_PARAMETER;
if ((TextModeInfo->ScreenBufferSize.X == 0) ||
(TextModeInfo->ScreenBufferSize.Y == 0))
{
return STATUS_INVALID_PARAMETER;
}
*Buffer = NULL;
Status = CONSOLE_SCREEN_BUFFER_Initialize((PCONSOLE_SCREEN_BUFFER*)&NewBuffer,
@ -95,10 +101,16 @@ TEXTMODE_BUFFER_Initialize(OUT PCONSOLE_SCREEN_BUFFER* Buffer,
return STATUS_INSUFFICIENT_RESOURCES;
}
NewBuffer->ScreenBufferSize = NewBuffer->OldScreenBufferSize
= TextModeInfo->ScreenBufferSize;
NewBuffer->ViewSize = NewBuffer->OldViewSize
= Console->ConsoleSize;
NewBuffer->ScreenBufferSize = TextModeInfo->ScreenBufferSize;
NewBuffer->OldScreenBufferSize = NewBuffer->ScreenBufferSize;
/*
* Set and fix the view size if needed.
* The rule is: ScreenBufferSize >= ViewSize (== ConsoleSize)
*/
NewBuffer->ViewSize.X = min(max(TextModeInfo->ViewSize.X, 1), NewBuffer->ScreenBufferSize.X);
NewBuffer->ViewSize.Y = min(max(TextModeInfo->ViewSize.Y, 1), NewBuffer->ScreenBufferSize.Y);
NewBuffer->OldViewSize = NewBuffer->ViewSize;
NewBuffer->ViewOrigin.X = NewBuffer->ViewOrigin.Y = 0;
NewBuffer->VirtualY = 0;
@ -465,15 +477,11 @@ ConioResizeBuffer(PCONSOLE Console,
ScreenBuffer->ScreenBufferSize = ScreenBuffer->OldScreenBufferSize = Size;
ScreenBuffer->VirtualY = 0;
/* Ensure cursor and window are within buffer */
if (ScreenBuffer->CursorPosition.X >= Size.X)
ScreenBuffer->CursorPosition.X = Size.X - 1;
if (ScreenBuffer->CursorPosition.Y >= Size.Y)
ScreenBuffer->CursorPosition.Y = Size.Y - 1;
if (ScreenBuffer->ViewOrigin.X > Size.X - ScreenBuffer->ViewSize.X)
ScreenBuffer->ViewOrigin.X = Size.X - ScreenBuffer->ViewSize.X;
if (ScreenBuffer->ViewOrigin.Y > Size.Y - ScreenBuffer->ViewSize.Y)
ScreenBuffer->ViewOrigin.Y = Size.Y - ScreenBuffer->ViewSize.Y;
/* Ensure the cursor and the view are within the buffer */
ScreenBuffer->CursorPosition.X = min(ScreenBuffer->CursorPosition.X, Size.X - 1);
ScreenBuffer->CursorPosition.Y = min(ScreenBuffer->CursorPosition.Y, Size.Y - 1);
ScreenBuffer->ViewOrigin.X = min(ScreenBuffer->ViewOrigin.X, Size.X - ScreenBuffer->ViewSize.X);
ScreenBuffer->ViewOrigin.Y = min(ScreenBuffer->ViewOrigin.Y, Size.Y - ScreenBuffer->ViewSize.Y);
/*
* Trigger a buffer resize event

48
win32ss/user/winsrv/consrv/conoutput.c
View file

@ -204,6 +204,7 @@ CSR_API(SrvCreateConsoleScreenBuffer)
PVOID ScreenBufferInfo = NULL;
TEXTMODE_BUFFER_INFO TextModeInfo = {{80, 25},
{80, 25},
DEFAULT_SCREEN_ATTRIB,
DEFAULT_POPUP_ATTRIB ,
TRUE,
@ -221,29 +222,18 @@ CSR_API(SrvCreateConsoleScreenBuffer)
ScreenBufferInfo = &TextModeInfo;
/*
if (Console->ActiveBuffer)
{
TextModeInfo.ScreenBufferSize = Console->ActiveBuffer->ScreenBufferSize;
if (TextModeInfo.ScreenBufferSize.X == 0) TextModeInfo.ScreenBufferSize.X = 80;
if (TextModeInfo.ScreenBufferSize.Y == 0) TextModeInfo.ScreenBufferSize.Y = 25;
TextModeInfo.ScreenAttrib = Console->ActiveBuffer->ScreenBuffer.TextBuffer.ScreenDefaultAttrib;
TextModeInfo.PopupAttrib = Console->ActiveBuffer->ScreenBuffer.TextBuffer.PopupDefaultAttrib;
TextModeInfo.IsCursorVisible = Console->ActiveBuffer->CursorInfo.bVisible;
TextModeInfo.CursorSize = Console->ActiveBuffer->CursorInfo.dwSize;
}
*/
/*
* This is Windows behaviour.
* This is Windows behaviour, as described by MSDN and verified manually:
*
* The newly created screen buffer will copy some properties from the
* active screen buffer at the time that this function is called.
* The behavior is as follows:
* Font - copied from active screen buffer.
* Display Window Size - copied from active screen buffer.
* Buffer Size - matched to Display Window Size (NOT copied).
* Default Attributes (colors) - copied from active screen buffer.
* Default Popup Attributes (colors) - copied from active screen buffer.
*/
/* Use the current console size. Normalize it if needed */
TextModeInfo.ScreenBufferSize = Console->ConsoleSize;
if (TextModeInfo.ScreenBufferSize.X == 0) TextModeInfo.ScreenBufferSize.X = 1;
if (TextModeInfo.ScreenBufferSize.Y == 0) TextModeInfo.ScreenBufferSize.Y = 1;
/* If we have an active screen buffer, use its attributes as the new ones */
if (Console->ActiveBuffer && GetType(Console->ActiveBuffer) == TEXTMODE_BUFFER)
{
@ -252,9 +242,23 @@ CSR_API(SrvCreateConsoleScreenBuffer)
TextModeInfo.ScreenAttrib = Buffer->ScreenDefaultAttrib;
TextModeInfo.PopupAttrib = Buffer->PopupDefaultAttrib;
TextModeInfo.IsCursorVisible = Buffer->CursorInfo.bVisible;
TextModeInfo.CursorSize = Buffer->CursorInfo.dwSize;
TextModeInfo.IsCursorVisible = Buffer->CursorInfo.bVisible;
/* Use the current view size */
TextModeInfo.ScreenBufferSize = Buffer->ViewSize;
TextModeInfo.ViewSize = Buffer->ViewSize;
}
else
{
/* Use the current console size */
TextModeInfo.ScreenBufferSize = Console->ConsoleSize;
TextModeInfo.ViewSize = Console->ConsoleSize;
}
/* Normalize the screen buffer size if needed */
if (TextModeInfo.ScreenBufferSize.X == 0) TextModeInfo.ScreenBufferSize.X = 1;
if (TextModeInfo.ScreenBufferSize.Y == 0) TextModeInfo.ScreenBufferSize.Y = 1;
}
else if (CreateScreenBufferRequest->ScreenBufferType == CONSOLE_GRAPHICS_BUFFER)
{

9
win32ss/user/winsrv/consrv/include/conio.h
View file

@ -105,8 +105,8 @@ struct _CONSOLE_SCREEN_BUFFER
HPALETTE PaletteHandle; /* Handle to the color palette associated to this buffer */
UINT PaletteUsage; /* The new use of the system palette. See SetSystemPaletteUse 'uUsage' parameter */
// WORD ScreenDefaultAttrib; /* Default screen char attribute */
// WORD PopupDefaultAttrib; /* Default popup char attribute */
// USHORT ScreenDefaultAttrib; /* Default screen char attribute */
// USHORT PopupDefaultAttrib; /* Default popup char attribute */
USHORT Mode; /* Output buffer modes */
};
@ -141,6 +141,7 @@ struct _CONSOLE_SCREEN_BUFFER
typedef struct _TEXTMODE_BUFFER_INFO
{
COORD ScreenBufferSize;
COORD ViewSize;
USHORT ScreenAttrib;
USHORT PopupAttrib;
ULONG CursorSize;
@ -153,8 +154,8 @@ typedef struct _TEXTMODE_SCREEN_BUFFER
PCHAR_INFO Buffer; /* Pointer to UNICODE screen buffer (Buffer->Char.UnicodeChar only is valid, not Char.AsciiChar) */
WORD ScreenDefaultAttrib; /* Default screen char attribute */
WORD PopupDefaultAttrib; /* Default popup char attribute */
USHORT ScreenDefaultAttrib; /* Default screen char attribute */
USHORT PopupDefaultAttrib; /* Default popup char attribute */
} TEXTMODE_SCREEN_BUFFER, *PTEXTMODE_SCREEN_BUFFER;