Bootlogo

QcomChargerApp.c 
QcomChargerApp_MonitorCharging
    QcomChargerAppDisplay_DispBattSymbol(DispImageType, TRUE);
QcomChargerApp_PostProcessing
	Status |= gBS->LocateProtocol( &gQcomDisplayUtilsProtocolGuid, NULL, (VOID **)&pDisplayUtilsProtocol);
	Status |= pDisplayUtilsProtocol->DisplayUtilsRenderLogo(&RenderLogoCfg);


DisplayUtils.c
Display_Utils_RenderLogo
	Display_Utils_RenderSplashScreen
	//1. from main fv ( GetFileSize)
		Status = Display_Utils_LoadFile("logo_720x1280.bmp", &BGRTAddress, &BGRTBufferSize, &ImageSize);
	//2. from Image fv (LoadFileFromGuidedFv)
	     MDP_Display_GetVariable_Integer(DISPVAR_ENABLE_DISPLAY_IMAGEFV, &uImageFvSetting);
		 uFlags = DISP_LOAD_FILE_FLAG_IMAGEFV;
         pLogoFileName = "logo_720x1280.bmp";
		 Display_Utils_LoadFile(pLogoFileName, &BGRTAddress, &BGRTBufferSize, &ImageSize, uFlags);

不同的平台上实现不一样，默认是load mainfv，有些是支持imagefv，如果支持多个项目不同的开机的logo，在main fv中添加会导致大小增大并延长启动时间，此时就可放入imagefv中，默认支持可以看路径(boot_images/boot/QcomPkg/Docs/CustomSplashLogo.txt)，
有些平台是默认是不支持的，添加loadimagefv(ImageFv.txt)的代码也无法实现从imagefv中获取图片，返回的一直是(RETURN_NOT_FOUND)，问高通说有些分支在UEFI Core中没有合入关键代码，所以要实现得向高通申请patch。

main fv

boot_images/QcomPkg/SocPkg/KamortaPkg/LAA/uefiplat.cfg
0x5FC00000, 0x00300000, "UEFI FD",           AddMem, SYS_MEM, SYS_MEM_CAP, BsData, WRITE_BACK

UEFI FD最大的size为0x00300000 = 3MB

boot_images/QcomPkg/SocPkg/KamortaPkg/LAA/Core.fdf

[FD.Kamorta_EFI]
BaseAddress   = 0x5FC00000|gEmbeddedTokenSpaceGuid.PcdEmbeddedFdBaseAddress  #The base address of the FLASH Device.
Size          = 0x002B2E00|gEmbeddedTokenSpaceGuid.PcdEmbeddedFdSize         #The size in bytes of the FLASH Device
ErasePolarity = 1
BlockSize     = 0x200
NumBlocks     = 0x1597

# 512 bytes of configuration header & 8 bytes of image header
0x00000000|0x002B2E00

FILE FREEFORM = 8cfbb887-c16f-4859-a897-539a723c77d6 {
    SECTION UI = "logo_720x1280.bmp"
    SECTION RAW = QcomPkg/Logo/LA/logo_720x1280.bmp
}

<partition label="xbl_a" size_in_kb="3604" type="DEA0BA2C-CBDD-4805-B4F9-F428251C3E98"
uniqueguid="A54CD18E-48E6-11EB-A809-4B8A186A3B98" bootable="false" readonly="true" filename="xbl.elf"/>

当前UEFI FD的size为0x002B2E00，需确保要小于cfg中定义的大小3MB，若需增加则NumBlocks也需要增加(Size/BlockSize)

imagefv

boot_images/boot/QcomPkg/SocPkg/Kodiak/Common/uefiplat.cfg

0x9C700000, 0x03100000, "DXE Heap",          AddMem, SYS_MEM, SYS_MEM_CAP, Conv,   WRITE_BACK_XN

ImageFv的内存通过DXE堆动态分配，ImageFv的增量取决与可用的空闲空间

EnableDisplayImageFv = 0x1

boot_images/boot/QcomPkg/SocPkg/Kodiak/LAA/ImageFv.fdf.inc

FILE FREEFORM = 9dc745c1-2c8d-43fd-8956-c18de6511b97 {
    SECTION UI = "logo_720x1280.bmp"
    SECTION RAW = QcomPkg/Logo/LA/logo_720x1280.bmp
}

[FV.IMAGEFV_COMPACT]
BlockSize          = 0x1000
NumBlocks          = 0x5

<partition label="imagefv_b" size_in_kb="2048" type="77036CD4-03D5-42BB-8ED1-37E5A88BAA34" 
uniqueguid="CD55DD56-48E6-11EB-B48F-4F6E1099088C" bootable="false" readonly="false" system="true" filename=""/>

增加ImageFV的size大小，则增大NumBlocks的大小，需保证小于cfg中的DXE Heap定义的大小以及分区大小
必要的可能还需要更改分区表partition.xml，需要通过qfil刷入，如果是release的产品是无法通过OTA的方式去改分区的

Animation

frameworks/base/cmds/bootanimation/BootAnimation.cpp，制作bootanimation需要注意一下几点

(1)desc.txt最后一行必须回车
   1280 720 5    宽        高       帧率
   p 1 0 part0  标识符  重复次数  两次显示间隔
   p 0 0 part1  p:会被中断 c:等待动画完成 0：循环 1：重复一次
  
(2)直接将part0 part1 desc.txt进行打包，不要在外层打包
(3)打包的格式一定要注意(仅存储)，不然就会出现，bootanimation.zip is compressed; must be only stored