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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/*
* Copyright (C) 2021 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.google.android.renderscript_test
import android.graphics.Bitmap
import android.renderscript.Allocation
import android.renderscript.Element
import android.renderscript.RenderScript
import android.renderscript.Script
import android.renderscript.ScriptIntrinsicConvolve3x3
import android.renderscript.ScriptIntrinsicConvolve5x5
import android.renderscript.Type
import com.google.android.renderscript.Range2d
/**
* Does a Convolve operation using the RenderScript Intrinsics.
*/
fun intrinsicConvolve(
context: RenderScript,
inputArray: ByteArray,
vectorSize: Int,
sizeX: Int,
sizeY: Int,
coefficients: FloatArray,
restriction: Range2d?
): ByteArray {
val baseElement = renderScriptVectorElementForU8(context, vectorSize)
val builder = Type.Builder(context, baseElement)
builder.setX(sizeX)
builder.setY(sizeY)
val arrayType = builder.create()
val inputAllocation = Allocation.createTyped(context, arrayType)
val outAllocation = Allocation.createTyped(context, arrayType)
inputAllocation.copyFrom(inputArray)
val intrinsicOutArray = ByteArray(sizeX * sizeY * paddedSize(vectorSize))
if (restriction != null) {
outAllocation.copyFrom(intrinsicOutArray) // To initialize to zero
}
invokeConvolveKernel(
coefficients,
context,
baseElement,
inputAllocation,
restriction,
outAllocation
)
outAllocation.copyTo(intrinsicOutArray)
inputAllocation.destroy()
outAllocation.destroy()
arrayType.destroy()
return intrinsicOutArray
}
fun intrinsicConvolve(
context: RenderScript,
bitmap: Bitmap,
coefficients: FloatArray,
restriction: Range2d?
): ByteArray {
val baseElement = renderScriptElementForBitmap(context, bitmap)
val inputAllocation = Allocation.createFromBitmap(context, bitmap)
val outAllocation = Allocation.createTyped(context, inputAllocation.type)
val intrinsicOutArray = ByteArray(bitmap.byteCount)
inputAllocation.copyFrom(bitmap)
if (restriction != null) {
outAllocation.copyFrom(intrinsicOutArray) // To initialize to zero
}
invokeConvolveKernel(
coefficients,
context,
baseElement,
inputAllocation,
restriction,
outAllocation
)
outAllocation.copyTo(intrinsicOutArray)
inputAllocation.destroy()
outAllocation.destroy()
return intrinsicOutArray
}
private fun invokeConvolveKernel(
coefficients: FloatArray,
context: RenderScript,
baseElement: Element,
inputAllocation: Allocation?,
restriction: Range2d?,
outAllocation: Allocation?
) {
when (coefficients.size) {
9 -> {
val scriptConvolve3x3 =
ScriptIntrinsicConvolve3x3.create(context, baseElement)
scriptConvolve3x3.setCoefficients(coefficients)
scriptConvolve3x3.setInput(inputAllocation)
if (restriction != null) {
val options = Script.LaunchOptions()
options.setX(restriction.startX, restriction.endX)
options.setY(restriction.startY, restriction.endY)
scriptConvolve3x3.forEach(outAllocation, options)
} else {
scriptConvolve3x3.forEach(outAllocation)
}
scriptConvolve3x3.destroy()
}
25 -> {
val scriptConvolve5x5 =
ScriptIntrinsicConvolve5x5.create(context, baseElement)
scriptConvolve5x5.setCoefficients(coefficients)
scriptConvolve5x5.setInput(inputAllocation)
if (restriction != null) {
val options = Script.LaunchOptions()
options.setX(restriction.startX, restriction.endX)
options.setY(restriction.startY, restriction.endY)
scriptConvolve5x5.forEach(outAllocation, options)
} else {
scriptConvolve5x5.forEach(outAllocation)
}
scriptConvolve5x5.destroy()
}
else -> {
throw IllegalArgumentException("RenderScriptToolkit tests. Only 3x3 and 5x5 convolutions are supported. ${coefficients.size} coefficients provided.")
}
}
}
|
