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 <gaoliming=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 <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
> 抄送: Sean Rhodes <sean@starlabs.systems>; Zhichao Gao
> <zhichao.gao@intel.com>; Ray Ni <ray.ni@intel.com>; Jian J Wang
> <jian.j.wang@intel.com>; Liming Gao <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>
> Cc: Ray Ni <ray.ni@intel.com>
> Cc: Jian J Wang <jian.j.wang@intel.com>
> Cc: Liming Gao <gaoliming@byosoft.com.cn>
> Signed-off-by: Sean Rhodes <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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