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Disable hardware acceleration on Android

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It serves no purpose and causes tearing.  Uploading the bitmap
to the GPU takes about as long as it does to incrementally
update the surface in software.

* java/AndroidManifest.xml.in: Disable hardware acceleration.
* java/org/gnu/emacs/EmacsActivity.java (EmacsActivity): Make
lastClosedMenu static.
* java/org/gnu/emacs/EmacsDialog.java (toAlertDialog): Enable
hardware acceleration within alert dialogs.
* java/org/gnu/emacs/EmacsSurfaceView.java (onDraw): Describe
why hardware acceleration is disabled.
* java/org/gnu/emacs/EmacsWindow.java (run): Remove redundant
call.
This commit is contained in:
Po Lu 2023-07-13 12:05:50 +08:00
parent 4e2fda28ed
commit 140755f2cf
5 changed files with 39 additions and 4 deletions
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5
java/AndroidManifest.xml.in
View file

@ -77,10 +77,14 @@ along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. -->
@ANDROID_SHARED_USER_ID@
android:extractNativeLibs="true">
<!-- See EmacsSurfaceView.onDraw for why hardware acceleration is
disabled. -->
<activity android:name="org.gnu.emacs.EmacsActivity"
android:launchMode="singleInstance"
android:windowSoftInputMode="adjustResize"
android:exported="true"
android:hardwareAccelerated="false"
android:configChanges="orientation|screenSize|screenLayout|keyboardHidden">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
@ -173,6 +177,7 @@ along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. -->
<activity android:name="org.gnu.emacs.EmacsMultitaskActivity"
android:windowSoftInputMode="adjustResize"
android:exported="true"
android:hardwareAccelerated="false"
android:configChanges="orientation|screenSize|screenLayout|keyboardHidden"/>
<activity android:autoRemoveFromRecents="true"