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--- odroid-n2:application_note:bootlogo_n2 [2019/03/21 10:59]
joy.cho [How to add showlogo command in boot.ini]
+++ odroid-n2:application_note:bootlogo_n2 [2020/03/31 18:05]
tobetter
@@ Line 1: / Line 1: @@
-========= Tips for boot logo on ODROID-N2 =======
+========= Tips to use custom boot logo =======
+<note important>
-===== Logo Image Format =====
+The instruction on this page is only available for ODROID-C4/N2
-The basic image format of ODROID-N2 logo file is as following.
+</note>
+<WRAP info round>
+Using the display auto detection option, the broken logo display can be shown with the latest version.\\
+Please use manual display mode by setting **setenv display_autodetect "false"** of boot.ini.
+</WRAP>
+===== Boot Logo Image Format =====
+The basic image format for a boot logo file is as follows.
 === Format ===
@@ Line 12: / Line 18: @@
 </code>
-Here is the sample bmp file.
+Here is the sample BMP file.
 {{:en:boot-logo.bmp.gz|}}
-We recommend using GIMP or KolourPaint.\\
+We recommend using GIMP or %%KolourPaint%% for boot logo creation.\\
-Here is an advanced option.
+Here are the advanced options for each of the recommended programs.
 **[ GIMP ]**
@@ Line 26: / Line 32: @@
 </code>
-**[ KolourPaint ]**
+**[ %%KolourPaint%% ]**
 <code>
 - Save Image as
@@ Line 34: / Line 40: @@
 === Size Limitation ===
-And please keep **the size of your logo file must be under 2MB** because the logo partition of Android is limited to 2MB.
+It is important to note that, **the size of your logo file must be under 2MB** because the logo partition of Android is limited to 2MB.
 Gzip BMP format is supported, so if the size is over 2MB, you can use bmp.gz file.
 <code bash>
@@ Line 43: / Line 49: @@
 === Auto scaling option ===
-On ODROID-N2 uboot, **image scaling for boot logo** is supported,\\
+On the bootloader <U-Boot>, **image scaling for boot logo** is supported,\\
 so displayed boot logo will be fixed automatically for output mode as described in boot.ini.\\
-For example, in case of using the mode "1024x600p60hz", boot logo will be displayed as 1024x600 even though actual size of bmp file is 1280x720.
+For example, in case of using the mode "1024x600p60hz", the boot logo will be displayed as 1024x600 even though the actual size of the bmp file is 1280x720.
 ===== How to replace boot logo with your custom image =====
-ODROID-N2 scans the existence of the following three parts in numerical order.\\
+Your ODROID board will scan the existence of the following three parts in numerical order.\\
   - boot-logo.bmp in VFAT partition
   - boot-logo.bmp.gz in VFAT partition
@@ Line 55: / Line 61: @@
 ==== Android ====
-On Android, you can replace boot logo with your custom image.
+In Android, you can replace the boot logo with your custom image.
-There are two ways to change boot logo image.
+There are two ways to change the boot logo image.
   - Add a image into VFAT partition.
   - Rewrite image data into Android LOGO partition using fastboot.
@@ Line 65: / Line 71: @@
 === 2. Android Logo Partition ===
-If you want to replace logo data in logo partition, please follow this guide.\\
+If you want to replace the logo data in the logo partition, please follow this guide.\\
-First, you must get into your U-Boot command line while pressing **ENTER** key when your ODROID-N2 is powered up.\\
+First, you must get into your U-Boot command line while pressing the **ENTER** key when your ODROID board is powered up.\\
-And execute **fastboot** command from U-Boot and connect with your desktop using USB cable.
+And execute **fastboot** command from U-Boot and connect it with your desktop using a USB cable.
-**[ ODROID-N2 Target ]**
+**[ On ODROID ]**
 <code bash target>
-odroidn2# fastboot
+# fastboot
 </code>
@@ Line 84: / Line 90: @@
 <WRAP round important>
-If you will use bmp data on logo partition, make sure there is **NO boot-logo.bmp.gz file on your VFAT area**, \\
+If you will use BMP data on logo partition, make sure there is **NO boot-logo.bmp.gz file on your VFAT area**, \\
-because U-Boot checks at first if there are boot-logo.bmp/boot-logo.bmp.gz on VFAT area and then check logo partition.
+because U-Boot first checks if there is a boot-logo.bmp/boot-logo.bmp.gz file in the VFAT area and then checks the logo partition.
 </WRAP>
@@ Line 115: / Line 121: @@
 </code>
-===== How to use the custom image with Native resolution like 1024x600 or 800x480 except 1280x720 =====
+===== How to use the custom image with Native resolution =====
 If you want to use a native resolution of bmp image like 1920x1080, 1024x600 (for VU7+) or 800x480 (for VU7),\\
@@ Line 121: / Line 127: @@
 <code bash target>
-odroidc2 # help showlogo
+# help showlogo
 showlogo - Displaying BMP logo file to HDMI screen with the specified resolution
@@ Line 160: / Line 166: @@
 </code>
+===== Android Boot Animation =====
+In case of Android, you can use **bootanimation.zip** method to show your custom logo using animation.\\
+Please refer to this reference site.\\
+https://android.googlesource.com/platform/frameworks/base/+/master/cmds/bootanimation/FORMAT.md\\
+The system selects a boot animation zip file from the following locations.
+<code>
+/system/media/bootanimation.zip
+/oem/media/bootanimation.zip
+</code>
+Before copy process, you need to change root filesystem permission as r/w.\\
+And copy your bootanimation.zip into /system/media/ folder.
+<code bash target>
+console:/ $ su
+console:/ # mount -o rw,remount /system
+[  173.674067@2] EXT4-fs (mmcblk0p11): re-mounted. Opts: block_validity,delalloc,barrier,user_xattr,acl,inode_readahead_blks=8
+</code>
+Please make sure file permission of bootanimation.zip.
+<code bash target>
+console:/ # chmod 755 /system/media/bootanimation.zip
+console:/ # ls -al /system/media/bootanimation.zip
+-rwxr-xr-x 1 root root 5030729 2019-03-27 00:41 /system/media/bootanimation.zip
+</code>