Revision: 13959
http://edk2.svn.sourceforge.net/edk2/?rev=13959&view=rev
Author: li-elvin
Date: 2012-11-23 08:24:19 +0000 (Fri, 23 Nov 2012)
Log Message:
-----------
Update FrameBufferSize aligned with UEFI spec.
Signed-off-by: Li Elvin <[email protected]>
Reviewed-by: Ni Ruiyu <[email protected]>
Modified Paths:
--------------
trunk/edk2/IntelFrameworkModulePkg/Csm/BiosThunk/VideoDxe/BiosVideo.c
Modified: trunk/edk2/IntelFrameworkModulePkg/Csm/BiosThunk/VideoDxe/BiosVideo.c
===================================================================
--- trunk/edk2/IntelFrameworkModulePkg/Csm/BiosThunk/VideoDxe/BiosVideo.c
2012-11-22 05:07:22 UTC (rev 13958)
+++ trunk/edk2/IntelFrameworkModulePkg/Csm/BiosThunk/VideoDxe/BiosVideo.c
2012-11-23 08:24:19 UTC (rev 13959)
@@ -1662,14 +1662,18 @@
CurrentModeData->PixelBitMask.GreenMask = ((UINT32)
CurrentModeData->Green.Mask) << CurrentModeData->Green.Position;
CurrentModeData->PixelBitMask.BlueMask = ((UINT32)
CurrentModeData->Blue.Mask) << CurrentModeData->Blue.Position;
CurrentModeData->PixelBitMask.ReservedMask = ((UINT32)
CurrentModeData->Reserved.Mask) << CurrentModeData->Reserved.Position;
- CurrentModeData->FrameBufferSize =
BiosVideoPrivate->VbeInformationBlock->TotalMemory * 64 * 1024;
CurrentModeData->LinearFrameBuffer = (VOID *)
(UINTN)BiosVideoPrivate->VbeModeInformationBlock->PhysBasePtr;
CurrentModeData->HorizontalResolution =
BiosVideoPrivate->VbeModeInformationBlock->XResolution;
CurrentModeData->VerticalResolution =
BiosVideoPrivate->VbeModeInformationBlock->YResolution;
CurrentModeData->BitsPerPixel =
BiosVideoPrivate->VbeModeInformationBlock->BitsPerPixel;
-
+ CurrentModeData->FrameBufferSize = CurrentModeData->BytesPerScanLine *
CurrentModeData->VerticalResolution;
+ //
+ // Make sure the FrameBufferSize does not exceed the max available frame
buffer size reported by VEB.
+ //
+ ASSERT (CurrentModeData->FrameBufferSize <=
BiosVideoPrivate->VbeInformationBlock->TotalMemory * 64 * 1024);
+
BiosVideoPrivate->ModeData = ModeBuffer;
}
//
@@ -2067,12 +2071,8 @@
CopyMem (&(This->Mode->Info->PixelInformation), &(ModeData->PixelBitMask),
sizeof (ModeData->PixelBitMask));
This->Mode->Info->PixelsPerScanLine = (ModeData->BytesPerScanLine * 8) /
ModeData->BitsPerPixel;
This->Mode->SizeOfInfo = sizeof(EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
-
- //
- // Frame BufferSize remain unchanged
- //
+ This->Mode->FrameBufferSize = ModeData->FrameBufferSize;
This->Mode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) (UINTN)
ModeData->LinearFrameBuffer;
- This->Mode->FrameBufferSize = ModeData->FrameBufferSize;
BiosVideoPrivate->HardwareNeedsStarting = FALSE;
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