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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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14
java/org/gnu/emacs/EmacsDialog.java
View file

@ -152,7 +152,7 @@ public final class EmacsDialog implements DialogInterface.OnDismissListener
toAlertDialog (Context context)
{
AlertDialog dialog;
int size, styleId;
int size, styleId, flag;
int[] attrs;
EmacsButton button;
EmacsDialogButtonLayout layout;
@ -160,6 +160,7 @@ public final class EmacsDialog implements DialogInterface.OnDismissListener
ViewGroup.LayoutParams layoutParams;
Theme theme;
TypedArray attributes;
Window window;
size = buttons.size ();
styleId = -1;
@ -273,6 +274,17 @@ public final class EmacsDialog implements DialogInterface.OnDismissListener
}
}
/* Make sure the dialog is hardware accelerated. Hardware
acceleration is disabled for dialogs by default, because they
aren't enabled in EmacsActivity either. */
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB)
{
flag = WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED;
window = dialog.getWindow ();
window.addFlags (flag);
}
return dialog;
}