1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/*
* Copyright (C) 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.systemui.screenshot
import android.app.IActivityTaskManager
import android.graphics.Bitmap
import android.graphics.Rect
import android.hardware.display.DisplayManager
import android.os.IBinder
import android.util.Log
import android.view.DisplayAddress
import android.view.SurfaceControl
import android.view.SurfaceControl.DisplayCaptureArgs
import android.view.SurfaceControl.ScreenshotHardwareBuffer
import androidx.annotation.VisibleForTesting
import com.android.systemui.dagger.SysUISingleton
import com.android.systemui.dagger.qualifiers.Background
import javax.inject.Inject
import kotlinx.coroutines.CoroutineDispatcher
import kotlinx.coroutines.withContext
private const val TAG = "ImageCaptureImpl"
@SysUISingleton
open class ImageCaptureImpl @Inject constructor(
private val displayManager: DisplayManager,
private val atmService: IActivityTaskManager,
@Background private val bgContext: CoroutineDispatcher
) : ImageCapture {
override fun captureDisplay(displayId: Int, crop: Rect?): Bitmap? {
val width = crop?.width() ?: 0
val height = crop?.height() ?: 0
val sourceCrop = crop ?: Rect()
val displayToken = physicalDisplayToken(displayId) ?: return null
val buffer = captureDisplay(displayToken, width, height, sourceCrop)
return buffer?.asBitmap()
}
override suspend fun captureTask(taskId: Int): Bitmap? {
val snapshot = withContext(bgContext) { atmService.takeTaskSnapshot(taskId) } ?: return null
return Bitmap.wrapHardwareBuffer(snapshot.hardwareBuffer, snapshot.colorSpace)
}
@VisibleForTesting
open fun physicalDisplayToken(displayId: Int): IBinder? {
val display = displayManager.getDisplay(displayId)
if (display == null) {
Log.e(TAG, "No display with id: $displayId")
return null
}
val address = display.address
if (address !is DisplayAddress.Physical) {
Log.e(TAG, "Display does not have a physical address: $display")
return null
}
return SurfaceControl.getPhysicalDisplayToken(address.physicalDisplayId)
}
@VisibleForTesting
open fun captureDisplay(
displayToken: IBinder,
width: Int,
height: Int,
crop: Rect
): ScreenshotHardwareBuffer? {
val captureArgs =
DisplayCaptureArgs.Builder(displayToken)
.setSize(width, height)
.setSourceCrop(crop)
.build()
return SurfaceControl.captureDisplay(captureArgs)
}
}
|
