Sean:

 According to the description, I agree with Pedro that this is a recommendation and not mandatory. Do you think so?

 

Thanks

Liming

发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 Pedro Falcato
发送时间: 2022年8月5日 15:04
收件人: edk2-devel-groups-io <devel@edk2.groups.io>; sean@starlabs.systems
抄送: Liming Gao <gaoliming@byosoft.com.cn>; Zhichao Gao <zhichao.gao@intel.com>; Ray Ni <ray.ni@intel.com>; Jian J Wang <jian.j.wang@intel.com>
主题: Re: [edk2-devel] [PATCH 1/3] MdeModulePkg/BootLogoLib: Add option to follow BGRT specification

 

Hi Sean,

 

I think it's clear from the wording that the 38.2% thing is a recommendation and not mandatory. I was curious and checked out the ACPI spec and they appear to not mention that at all. Maybe reword things to "Microsoft recommendation"?

 

Thanks,

Pedro

 

On Fri, 5 Aug 2022, 07:55 Sean Rhodes, <sean@starlabs.systems <mailto:sean@starlabs.systems> > wrote:

Hi Liming

 

Microsoft details about positioning can be found here: https://docs.microsoft.com/en-us/windows-hardware/drivers/bringup/boot-screen-components

 

Thanks

 

Sean

 

On Fri, 5 Aug 2022 at 07:00, gaoliming via groups.io <http://groups.io>  <gaoliming=byosoft.com.cn@groups.io <mailto:byosoft.com.cn@groups.io> > wrote:

Sean:
  Can you give BGRT spec link? I want to check the spec description. 

Thanks
Liming
> -----邮件原件-----
> 发件人: devel@edk2.groups.io <mailto:devel@edk2.groups.io>  <devel@edk2.groups.io <mailto:devel@edk2.groups.io> > 代表 Sean Rhodes
> 发送时间: 2022年7月26日 16:15
> 收件人: devel@edk2.groups.io <mailto:devel@edk2.groups.io> 
> 抄送: Sean Rhodes <sean@starlabs.systems <mailto:sean@starlabs.systems> >; Zhichao Gao
> <zhichao.gao@intel.com <mailto:zhichao.gao@intel.com> >; Ray Ni <ray.ni@intel.com <mailto:ray.ni@intel.com> >; Jian J Wang
> <jian.j.wang@intel.com <mailto:jian.j.wang@intel.com> >; Liming Gao <gaoliming@byosoft.com.cn <mailto:gaoliming@byosoft.com.cn> >
> 主题: [edk2-devel] [PATCH 1/3] MdeModulePkg/BootLogoLib: Add option to
> follow BGRT specification
> 
> Add an option to position the logo 38.2% from the top of the screen,
> which follows the BGRT specification.
> 
> Cc: Zhichao Gao <zhichao.gao@intel.com <mailto:zhichao.gao@intel.com> >
> Cc: Ray Ni <ray.ni@intel.com <mailto:ray.ni@intel.com> >
> Cc: Jian J Wang <jian.j.wang@intel.com <mailto:jian.j.wang@intel.com> >
> Cc: Liming Gao <gaoliming@byosoft.com.cn <mailto:gaoliming@byosoft.com.cn> >
> Signed-off-by: Sean Rhodes <sean@starlabs.systems <mailto:sean@starlabs.systems> >
> ---
>  MdeModulePkg/Include/Protocol/PlatformLogo.h   | 3 ++-
>  MdeModulePkg/Library/BootLogoLib/BootLogoLib.c | 7 ++++---
>  2 files changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/MdeModulePkg/Include/Protocol/PlatformLogo.h
> b/MdeModulePkg/Include/Protocol/PlatformLogo.h
> index 08e1dc35a4..7c9ef63c66 100644
> --- a/MdeModulePkg/Include/Protocol/PlatformLogo.h
> +++ b/MdeModulePkg/Include/Protocol/PlatformLogo.h
> @@ -29,7 +29,8 @@ typedef enum {
>    EdkiiPlatformLogoDisplayAttributeCenterBottom,
> 
>    EdkiiPlatformLogoDisplayAttributeLeftBottom,
> 
>    EdkiiPlatformLogoDisplayAttributeCenterLeft,
> 
> -  EdkiiPlatformLogoDisplayAttributeCenter
> 
> +  EdkiiPlatformLogoDisplayAttributeCenter,
> 
> +  EdkiiPlatformLogoDisplayAttributeBGRTSpecification
> 
>  } EDKII_PLATFORM_LOGO_DISPLAY_ATTRIBUTE;
> 
> 
> 
>  /**
> 
> diff --git a/MdeModulePkg/Library/BootLogoLib/BootLogoLib.c
> b/MdeModulePkg/Library/BootLogoLib/BootLogoLib.c
> index 478ec2d40e..ac086f9c79 100644
> --- a/MdeModulePkg/Library/BootLogoLib/BootLogoLib.c
> +++ b/MdeModulePkg/Library/BootLogoLib/BootLogoLib.c
> @@ -169,7 +169,6 @@ BootLogoEnableLogo (
>          DestX = SizeOfX - Image.Width;
> 
>          DestY = 0;
> 
>          break;
> 
> -
> 
>        case EdkiiPlatformLogoDisplayAttributeCenterLeft:
> 
>          DestX = 0;
> 
>          DestY = (SizeOfY - Image.Height) / 2;
> 
> @@ -182,7 +181,6 @@ BootLogoEnableLogo (
>          DestX = SizeOfX - Image.Width;
> 
>          DestY = (SizeOfY - Image.Height) / 2;
> 
>          break;
> 
> -
> 
>        case EdkiiPlatformLogoDisplayAttributeLeftBottom:
> 
>          DestX = 0;
> 
>          DestY = SizeOfY - Image.Height;
> 
> @@ -195,7 +193,10 @@ BootLogoEnableLogo (
>          DestX = SizeOfX - Image.Width;
> 
>          DestY = SizeOfY - Image.Height;
> 
>          break;
> 
> -
> 
> +      case EdkiiPlatformLogoDisplayAttributeBGRTSpecification:
> 
> +        DestX = (SizeOfX - Image.Width) / 2;
> 
> +        DestY = (SizeOfY * 382) / 1000 - Image.Height / 2;
> 
> +        break;
> 
>        default:
> 
>          ASSERT (FALSE);
> 
>          continue;
> 
> --
> 2.34.1
> 
> 
> 
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