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CorebootPayloadPkg/FbGop: Produces correct PixelsPerScanLine 

According to UEFI Spec, EFI_GRAPHICS_OUTPUT_PROTOCOL.Mode->Info->
PixelsPerScanLine may contain padding pixel elements outside the area
covered by HorizontalResolution for performance reasons or due to hardware
restrictions. CorebootPayloadPkg's FbGop driver doesn't follow this
requirement, and produces PixelsPerScanLine simply as
HorizontalResolution. This needs to be fixed to reflect the real length
of a framebuffer scanline.

Cc: Maurice Ma <maurice.ma@intel.com>
Cc: Prince Agyeman <prince.agyeman@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Benjamin You <benjamin.you@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
This commit is contained in:
Benjamin You 2018-01-30 16:38:45 +08:00
parent 3fad4a9527
commit c0d9813cec
1 changed files with 1 additions and 1 deletions
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2
CorebootPayloadPkg/FbGop/FbGop.c
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@ -893,7 +893,7 @@ FbGopCheckForVbe (
FbGopPrivate->GraphicsOutput.Mode->Info->VerticalResolution = VerticalResolution;
FbGopPrivate->GraphicsOutput.Mode->Info->PixelFormat = CurrentModeData->PixelFormat;
CopyMem (&(FbGopPrivate->GraphicsOutput.Mode->Info->PixelInformation), &mPixelBitMask, sizeof (EFI_PIXEL_BITMASK));
FbGopPrivate->GraphicsOutput.Mode->Info->PixelsPerScanLine = HorizontalResolution;
FbGopPrivate->GraphicsOutput.Mode->Info->PixelsPerScanLine = (UINT32)(BytesPerScanLine * 8 / BitsPerPixel);
FbGopPrivate->GraphicsOutput.Mode->SizeOfInfo = sizeof(EFI_GRAPHICS_OUTPUT_MODE_INFORMATION);
FbGopPrivate->GraphicsOutput.Mode->FrameBufferBase = (EFI_PHYSICAL_ADDRESS) (UINTN) CurrentModeData->LinearFrameBuffer;
FbGopPrivate->GraphicsOutput.Mode->FrameBufferSize = CurrentModeData->FrameBufferSize;