You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
37 lines
1.5 KiB
37 lines
1.5 KiB
# Steps to regenerate background text images under res-*dpi/images/
|
|
|
|
1. Build the recovery_l10n app:
|
|
|
|
cd bootable/recovery && mma -j32
|
|
|
|
2. Install the app on the device (or emulator) with the intended dpi.
|
|
|
|
* For example, we can use Nexus 5 to generate the text images under
|
|
res-xxhdpi.
|
|
* We can set up the maximum width of the final png image in res/layout/main.xml
|
|
Currently, the image width is 1200px for xxxhdpi, 900px for xxhdpi and
|
|
480px for xhdpi/hdpi/mdpi.
|
|
* When using the emulator, make sure the NDK version matches the current
|
|
repository. Otherwise, the app may not work properly.
|
|
|
|
adb install $PATH_TO_APP
|
|
|
|
3. Run the app, select the string to translate and press the 'go' button.
|
|
|
|
4. After the app goes through the strings for all locales, pull the output png
|
|
file from the device.
|
|
|
|
adb root && adb pull /data/data/com.android.recovery_l10n/files/text-out.png
|
|
|
|
5. Compress the output file put it under the corresponding directory.
|
|
|
|
* "pngcrush -c 0 ..." converts "text-out.png" into a 1-channel image,
|
|
which is accepted by Recovery. This also compresses the image file by
|
|
~60%.
|
|
* zopflipng could further compress the png files by ~10%, more details
|
|
in https://github.com/google/zopfli/blob/master/README.zopflipng
|
|
* If you're using other png compression tools, make sure the final text
|
|
image works by running graphic tests under the recovery mode.
|
|
|
|
pngcrush -c 0 text-out.png $OUTPUT_PNG
|