[edk2-devel] [PATCH] MdeModulePkg/FrameBufferBltLib: Correctly consider SourceX

[Gao, Zhichao]

I have just viewed a same patch of this issue. See https://edk2.groups.io/g/devel/topic/34168097#47297.
The two patches are doing the same thing.

Thanks,
Zhichao

> -----Original Message-----
> From: Wu, Hao A
> Sent: Tuesday, September 24, 2019 9:02 PM
> To: Marvin Häuser <Marvin.Haeuser at outlook.com>; devel at edk2.groups.io;
> Gao, Zhichao <zhichao.gao at intel.com>; Ni, Ray <ray.ni at intel.com>
> Cc: Wang, Jian J <jian.j.wang at intel.com>
> Subject: RE: [PATCH] MdeModulePkg/FrameBufferBltLib: Correctly consider
> SourceX
> 
> > -----Original Message-----
> > From: Marvin Häuser [mailto:Marvin.Haeuser at outlook.com]
> > Sent: Tuesday, September 24, 2019 8:46 PM
> > To: devel at edk2.groups.io
> > Cc: Wang, Jian J; Wu, Hao A
> > Subject: [PATCH] MdeModulePkg/FrameBufferBltLib: Correctly consider
> > SourceX
> >
> > From: Marvin Haeuser <mhaeuser at outlook.de>
> >
> > Currently, SourceX is not considered in the BufferToVideo operation
> > when the 8-bit pixel format is used. Correctly add the resulting
> > offset to prevent image corruption.
> >
> > Cc: Jian J Wang <jian.j.wang at intel.com>
> > Cc: Hao A Wu <hao.a.wu at intel.com>
> 
> 
> Hello Marvin,
> 
> In the future, could you help to run the below script:
> BaseTools/Scripts/GetMaintainer.py
> to get the reviewers for the proposed patch? Thanks in advance.
> 
> Hello Zhichao and Ray,
> 
> Could you help to take a look at this patch? Thanks.
> 
> Best Regards,
> Hao Wu
> 
> 
> > Signed-off-by: Marvin Haeuser <mhaeuser at outlook.de>
> > ---
> >  MdeModulePkg/Library/FrameBufferBltLib/FrameBufferBltLib.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git
> > a/MdeModulePkg/Library/FrameBufferBltLib/FrameBufferBltLib.c
> > b/MdeModulePkg/Library/FrameBufferBltLib/FrameBufferBltLib.c
> > index 47c5326e9958..a084cc81d32e 100644
> > --- a/MdeModulePkg/Library/FrameBufferBltLib/FrameBufferBltLib.c
> > +++ b/MdeModulePkg/Library/FrameBufferBltLib/FrameBufferBltLib.c
> > @@ -504,7 +504,7 @@ FrameBufferBltLibBufferToVideo (
> >      Destination = Configure->FrameBuffer + Offset;
> >
> >
> >
> >      if (Configure->PixelFormat ==
> > PixelBlueGreenRedReserved8BitPerColor) {
> >
> > -      Source = (UINT8 *) BltBuffer + (SrcY * Delta);
> >
> > +      Source = (UINT8 *) BltBuffer + (SrcY * Delta) + (SourceX *
> > + sizeof
> > (EFI_GRAPHICS_OUTPUT_BLT_PIXEL));
> >
> >      } else {
> >
> >        for (IndexX = 0; IndexX < Width; IndexX++) {
> >
> >          Blt =
> >
> > --
> > 2.23.0.windows.1


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