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Remove some unnecessary clear screen from console drivers.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10590 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
li-elvin
2010-06-18 09:19:29 +00:00
parent 35f9e94ed4
commit 46f0e2a9ee
2 changed files with 53 additions and 30 deletions
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67
MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitter.c
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@@ -2630,6 +2630,7 @@ ConSplitterAddGraphicsOutputMode (
Index = 0;
CurrentIndex = 0;
Status = EFI_SUCCESS;
if (Private->CurrentNumberOfUgaDraw != 0) {
//
@@ -2834,21 +2835,48 @@ Done:
// regardless whether the console is in EfiConsoleControlScreenGraphics or EfiConsoleControlScreenText mode
//
Private->HardwareNeedsStarting = TRUE;
//
// Current mode number may need update now, so set it to an invalid mode number
//
CurrentGraphicsOutputMode->Mode = 0xffff;
//
// Graphics console can ensure all GOP devices have the same mode which can be taken as current mode.
//
Status = Private->GraphicsOutput.SetMode (&Private->GraphicsOutput, (UINT32) CurrentIndex);
if (EFI_ERROR(Status)) {
Mode = &Private->GraphicsOutputModeBuffer[CurrentIndex];
if ((GraphicsOutput != NULL) &&
(Mode->HorizontalResolution == CurrentGraphicsOutputMode->Info->HorizontalResolution) &&
(Mode->VerticalResolution == CurrentGraphicsOutputMode->Info->VerticalResolution)) {
CurrentGraphicsOutputMode->Mode = (UINT32) CurrentIndex;
if ((Mode->HorizontalResolution != GraphicsOutput->Mode->Info->HorizontalResolution) ||
(Mode->VerticalResolution != GraphicsOutput->Mode->Info->VerticalResolution)) {
//
// If all existing video device has been set to common mode, only set new GOP device to
// the common mode
//
for (NumberIndex = 0; NumberIndex < GraphicsOutput->Mode->MaxMode; NumberIndex ++) {
Status = GraphicsOutput->QueryMode (GraphicsOutput, (UINT32) NumberIndex, &SizeOfInfo, &Info);
if (EFI_ERROR (Status)) {
return Status;
}
if ((Info->HorizontalResolution == Mode->HorizontalResolution) && (Info->VerticalResolution == Mode->VerticalResolution)) {
FreePool (Info);
break;
}
FreePool (Info);
}
Status = GraphicsOutput->SetMode (GraphicsOutput, (UINT32) NumberIndex);
}
} else {
//
// If user defined mode is not valid for display device, set to the default mode 800x600.
// Current mode number may need update now, so set it to an invalid mode number
//
(Private->GraphicsOutputModeBuffer[0]).HorizontalResolution = 800;
(Private->GraphicsOutputModeBuffer[0]).VerticalResolution = 600;
Status = Private->GraphicsOutput.SetMode (&Private->GraphicsOutput, 0);
CurrentGraphicsOutputMode->Mode = 0xffff;
//
// Graphics console can ensure all GOP devices have the same mode which can be taken as current mode.
//
Status = Private->GraphicsOutput.SetMode (&Private->GraphicsOutput, (UINT32) CurrentIndex);
if (EFI_ERROR(Status)) {
//
// If user defined mode is not valid for display device, set to the default mode 800x600.
//
(Private->GraphicsOutputModeBuffer[0]).HorizontalResolution = 800;
(Private->GraphicsOutputModeBuffer[0]).VerticalResolution = 600;
Status = Private->GraphicsOutput.SetMode (&Private->GraphicsOutput, 0);
}
}
return Status;
@@ -3067,11 +3095,6 @@ ConSplitterTextOutAddDevice (
}
}
//
// If ConOut, then set the mode to Mode #0 which us 80 x 25
//
Private->TextOut.SetMode (&Private->TextOut, 0);
//
// After adding new console device, all existing console devices should be
// synced to the current shared mode.
@@ -4387,14 +4410,6 @@ ConSplitterTextOutSetMode (
Private->TextOutList[Index].TextOut,
TextOutModeMap[Index]
);
//
// If this console device is based on a GOP or UGA device, then sync up the bitmap from
// the GOP/UGA splitter and reclear the text portion of the display in the new mode.
//
if ((Private->TextOutList[Index].GraphicsOutput != NULL) || (Private->TextOutList[Index].UgaDraw != NULL)) {
Private->TextOutList[Index].TextOut->ClearScreen (Private->TextOutList[Index].TextOut);
}
if (EFI_ERROR (Status)) {
ReturnStatus = Status;
}