Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6aead1cc authored by Jorim Jaggi's avatar Jorim Jaggi
Browse files

Fix creating of app theme snapshots 

Apparently locking a HW bitmap makes it super slow to draw.
Instead, draw it into a bitmap, copy it into a hw bitmap, and then
extract the GraphicBuffer.

Test: Open Camera, go home, reopen camera (and maybe go to recents)
Change-Id: Id2371dcdad95f07a680e6c56c0403b3ad815a3f3
Fixes: 38510859
parent ff389264

services/core/java/com/android/server/wm/TaskSnapshotController.java

+13 −15
Original line number Diff line number Diff line
@@ -17,15 +17,14 @@ 
package com.android.server.wm;



import static android.app.ActivityManager.ENABLE_TASK_SNAPSHOTS;

import static android.graphics.GraphicBuffer.USAGE_HW_TEXTURE;

import static android.graphics.GraphicBuffer.USAGE_SW_READ_NEVER;

import static android.graphics.GraphicBuffer.USAGE_SW_WRITE_RARELY;

import static android.graphics.PixelFormat.RGBA_8888;

import static android.graphics.Bitmap.Config.ARGB_8888;

import static android.graphics.Bitmap.Config.HARDWARE;



import android.annotation.Nullable;

import android.app.ActivityManager;

import android.app.ActivityManager.StackId;

import android.app.ActivityManager.TaskSnapshot;

import android.graphics.Bitmap;

import android.graphics.Canvas;

import android.graphics.GraphicBuffer;

import android.graphics.Rect;
@@ -42,7 +41,6 @@ import com.android.internal.annotations.VisibleForTesting; 
import com.android.server.wm.TaskSnapshotSurface.SystemBarBackgroundPainter;



import java.io.PrintWriter;

import java.util.function.Consumer;



/**

 * When an app token becomes invisible, we take a snapshot (bitmap) of the corresponding task and
@@ -240,22 +238,22 @@ class TaskSnapshotController { 
        final int color = task.getTaskDescription().getBackgroundColor();

        final int statusBarColor = task.getTaskDescription().getStatusBarColor();

        final int navigationBarColor = task.getTaskDescription().getNavigationBarColor();

        final GraphicBuffer buffer = GraphicBuffer.create(mainWindow.getFrameLw().width(),

                mainWindow.getFrameLw().height(),

                RGBA_8888, USAGE_HW_TEXTURE | USAGE_SW_WRITE_RARELY | USAGE_SW_READ_NEVER);

        if (buffer == null) {

            return null;

        }

        final Canvas c = buffer.lockCanvas();

        final Bitmap b = Bitmap.createBitmap(mainWindow.getFrameLw().width(),

                mainWindow.getFrameLw().height(), ARGB_8888);

        final Canvas c = new Canvas(b);

        c.drawColor(color);

        final LayoutParams attrs = mainWindow.getAttrs();

        final SystemBarBackgroundPainter decorPainter = new SystemBarBackgroundPainter(attrs.flags,

                attrs.privateFlags, attrs.systemUiVisibility, statusBarColor, navigationBarColor);

        decorPainter.setInsets(mainWindow.mContentInsets, mainWindow.mStableInsets);

        decorPainter.drawDecors(c, null /* statusBarExcludeFrame */);

        buffer.unlockCanvasAndPost(c);

        return new TaskSnapshot(buffer, topChild.getConfiguration().orientation,

                mainWindow.mStableInsets, false /* reduced */, 1.0f /* scale */);



        // Flush writer.

        c.setBitmap(null);

        final Bitmap hwBitmap = b.copy(HARDWARE, false /* isMutable */);

        return new TaskSnapshot(hwBitmap.createGraphicBufferHandle(),

                topChild.getConfiguration().orientation, mainWindow.mStableInsets,

                false /* reduced */, 1.0f /* scale */);

    }



    /**