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authorTianjie Xu <xunchang@google.com>2020-12-29 01:46:10 +0100
committerAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>2020-12-29 01:46:10 +0100
commit08b3146aa2c2d5e39b4651fc8eb22c79b982b525 (patch)
treedb9721aa2b1d6b46076730f2b92d78d642b48f0e /tools/image_generator
parentMerge "minui: fix mem leakage issue" am: d694016206 am: ebfe03631c am: 28aa649e54 (diff)
parentMerge "Add doc for image_generator" am: 40d4bc9e19 am: 0e46691951 (diff)
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diff --git a/tools/image_generator/README.md b/tools/image_generator/README.md
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+++ b/tools/image_generator/README.md
@@ -19,3 +19,13 @@ emulators with different dpi.
4. `resourceDirectory`: The resource directory that contains all the translated
strings in xml format, e.g. bootable/recovery/tools/recovery_l10n/res/
5. `outputFilename`: Path to the generated image.
+
+# Locales
+Supported locales and background texts are located in
+[tools/recovery_l10n/res/](../recovery_l10n/res/values). For each background text, the tool renders
+a localized image for every supported locale.
+
+Each individual localized image contains an encoded locale header string, and the rendered
+background text. The locale header string is generated by `Locale.forLanguageTag`. And sample
+result include `en-US`, `zh-CN`, etc. These individual images are then concatenated together to
+form the final resource image that locates in res/images, e.g. `install_text.png`