1. 在device\qcom\common\display\logo下找到logo_gen.py
2. 如果没有安装Python，先执行以下命令 sudo apt-get install python-imaging
3. 将需要制作logo的图片拷贝到logo_gen.py的同级目录 需要注意的是图片分辨率应该与设备屏分辨率一致
4. 运行如下命令生成splash.img,执行 python ./logo_gen.py logo.png
5. 连上设备运行如下命令
   • adb reboot bootloader
   • fastboot flash splash splash.img
   • fastboot reboot
6. 检查logo是否替换成功
7. 操作步骤就是这么玩，需要有处理图片的环境，这个需要自己去搭建
8. 

生成就是splash.img

至于环境的搭建可以查看，我有一篇关于如何制作开机充电动画的那一篇介绍过。 

至于这个生成脚本是原生的，或者不太会使用就可以下载：链接: https://pan.baidu.com/s/1L7IKaFW1sa9-yZKMen8oow?pwd=g2f6 提取码: g2f6 

那么如果想制作到系统里面去该如何操作：

开机logo添加到编译中

1. 将logo.png图片还放在该目录下device/qcom/common/display/logo/
2. 修改vendor/qcom/build/tasks/generate_extra_images.mk：

3. diff --git a/device/qcom/common/generate_extra_images.mk b/device/qcom/common/generate_extra_images.mk
   old mode 100644
   new mode 100755
   index 1bdab24..c7c5f8d
   --- a/device/qcom/common/generate_extra_images.mk
   +++ b/device/qcom/common/generate_extra_images.mk
   @@ -15,6 +15,7 @@ INSTALLED_USERDATAIMAGE_TARGET := $(PRODUCT_OUT)/userdata.img
    INSTALLED_RECOVERYIMAGE_TARGET := $(PRODUCT_OUT)/recovery.img
    recovery_ramdisk := $(PRODUCT_OUT)/ramdisk-recovery.img
    INSTALLED_USBIMAGE_TARGET := $(PRODUCT_OUT)/usbdisk.img
   +INSTALLED_SPLASHIMAGE_TARGET := $(PRODUCT_OUT)/splash.img
    endif

    #---------------------------------------------------------------------
   @@ -425,6 +426,30 @@ bootimage: $(INSTALLED_BOOTIMAGE_TARGET) $(INSTALLED_SEC_BOOTIMAGE_TARGET)
    endif

    ###################################################################################################
   +#----------------------------------------------------------------------
   +# Compile splash.img
   +#----------------------------------------------------------------------
   +define build-splashimage-target
   +       $(hide) python device/qcom/common/display/logo/logo_gen.py device/qcom/common/display/logo/logo.png
   +       $(hide) cp splash.img $(PRODUCT_OUT)/
   +endef
   +
   +$(INSTALLED_SPLASHIMAGE_TARGET):
   +       $(build-splashimage-target)
   +
   +ALL_DEFAULT_INSTALLED_MODULES += $(INSTALLED_SPLASHIMAGE_TARGET)
   +ALL_MODULES.$(LOCAL_MODULE).INSTALLED += $(INSTALLED_SPLASHIMAGE_TARGET)
   +
   +.PHONY:        splashimage
   +splashimage: $(INSTALLED_SPLASHIMAGE_TARGET)
   +

    ifeq ($(TARGET_BOOTIMG_SIGNED),true)
    .PHONY: otapackage
    

编译后out目录下会生成splash.img，修改烧录版本时的文件rawprogram0_16G.xml，找到label="splash"的这一项，将filename补上如下

<program SECTOR_SIZE_IN_BYTES="512" file_sector_offset="0" filename="splash.img" label="splash" num_partition_sectors="20480" 
physical_partition_number="0" size_in_KB="10240.0" sparse="false" start_byte_hex="0x8a82400" start_sector="283666"/>
参考：https://blog.csdn.net/weixin_44008788/article/details/111441491