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Re: [PATCH 1/1] efi/gop: require shadow if PixelBltOnly
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From: |
Daniel Kiper |
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Subject: |
Re: [PATCH 1/1] efi/gop: require shadow if PixelBltOnly |
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Date: |
Tue, 29 Aug 2023 15:48:40 +0200 |
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User-agent: |
NeoMutt/20170113 (1.7.2) |
On Mon, Aug 28, 2023 at 11:50:09PM +0200, Heinrich Schuchardt wrote:
> If the EFI graphics pixel format is PixelBltOnly, we cannot write directly
> to the frame buffer. We need the shadow frame buffer which we copy via
> the BitBlt operation to the hardware.
>
> If the pixel format is PixelBltOnly and allocation of the shadow frame
> buffer fails, we must raise an error to signal that the EFI GOP protocol is
> not usable.
>
> Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Daniel