1 /*
<lambda>null2  * Copyright 2024 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 @file:JvmName("SuspendedMatrixColorFilter")
18 
19 package com.android.intentresolver.util.graphics
20 
21 import android.graphics.ColorMatrix
22 import android.graphics.ColorMatrixColorFilter
23 
24 val suspendedColorMatrix by lazy {
25     val grayValue = 127f
26     val scale = 0.5f // half bright
27 
28     val tempBrightnessMatrix =
29         ColorMatrix().apply {
30             array.let { m ->
31                 m[0] = scale
32                 m[6] = scale
33                 m[12] = scale
34                 m[4] = grayValue
35                 m[9] = grayValue
36                 m[14] = grayValue
37             }
38         }
39 
40     val matrix =
41         ColorMatrix().apply {
42             setSaturation(0.0f)
43             preConcat(tempBrightnessMatrix)
44         }
45     ColorMatrixColorFilter(matrix)
46 }
47