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/*
* 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.RenderScript
import android.renderscript.Script
import android.renderscript.ScriptIntrinsicResize
import android.renderscript.Type
import com.google.android.renderscript.Range2d
/**
* Does a Resize operation using the RenderScript Intrinsics.
*/
fun intrinsicResize(
context: RenderScript,
inputArray: ByteArray,
vectorSize: Int,
inSizeX: Int,
inSizeY: Int,
outSizeX: Int,
outSizeY: Int,
restriction: Range2d?
): ByteArray {
val scriptResize = ScriptIntrinsicResize.create(context)
val builder = Type.Builder(
context,
renderScriptVectorElementForU8(context, vectorSize)
)
builder.setX(inSizeX)
builder.setY(inSizeY)
val inputArrayType = builder.create()
val inputAllocation = Allocation.createTyped(context, inputArrayType)
builder.setX(outSizeX)
builder.setY(outSizeY)
val outputArrayType = builder.create()
val outAllocation = Allocation.createTyped(context, outputArrayType)
val intrinsicOutArray = ByteArray(outSizeX * outSizeY * paddedSize(vectorSize))
inputAllocation.copyFrom(inputArray)
scriptResize.setInput(inputAllocation)
if (restriction != null) {
outAllocation.copyFrom(intrinsicOutArray) // To initialize to zero
val options = Script.LaunchOptions()
options.setX(restriction.startX, restriction.endX)
options.setY(restriction.startY, restriction.endY)
scriptResize.forEach_bicubic(outAllocation, options)
} else {
scriptResize.forEach_bicubic(outAllocation)
}
outAllocation.copyTo(intrinsicOutArray)
inputAllocation.destroy()
outAllocation.destroy()
scriptResize.destroy()
inputArrayType.destroy()
outputArrayType.destroy()
return intrinsicOutArray
}
fun intrinsicResize(
context: RenderScript,
bitmap: Bitmap,
outSizeX: Int,
outSizeY: Int,
restriction: Range2d?
): ByteArray {
val scriptResize = ScriptIntrinsicResize.create(context)
val inputAllocation = Allocation.createFromBitmap(context, bitmap)
inputAllocation.copyFrom(bitmap)
val vectorSize = when (bitmap.config) {
Bitmap.Config.ARGB_8888 -> 4
Bitmap.Config.ALPHA_8 -> 1
else -> error("Unrecognized bitmap config $bitmap.config")
}
val builder = Type.Builder(
context,
renderScriptVectorElementForU8(context, vectorSize)
)
builder.setX(outSizeX)
builder.setY(outSizeY)
val outputArrayType = builder.create()
val outAllocation = Allocation.createTyped(context, outputArrayType)
val intrinsicOutArray = ByteArray(outSizeX * outSizeY * vectorSize)
scriptResize.setInput(inputAllocation)
if (restriction != null) {
outAllocation.copyFrom(intrinsicOutArray) // To initialize to zero
val options = Script.LaunchOptions()
options.setX(restriction.startX, restriction.endX)
options.setY(restriction.startY, restriction.endY)
scriptResize.forEach_bicubic(outAllocation, options)
} else {
scriptResize.forEach_bicubic(outAllocation)
}
outAllocation.copyTo(intrinsicOutArray)
inputAllocation.destroy()
outAllocation.destroy()
outputArrayType.destroy()
scriptResize.destroy()
return intrinsicOutArray
}
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