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138
src/main/kotlin/com/malinskiy/adam/request/sync/RawImage.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| /* | ||
| * Copyright (C) 2020 Anton Malinskiy | ||
| * | ||
| * 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.malinskiy.adam.request.sync | ||
|
|
||
| import com.malinskiy.adam.exception.UnsupportedImageProtocolException | ||
| import java.awt.image.BufferedImage | ||
| import java.nio.ByteBuffer | ||
|
|
||
| data class RawImage( | ||
| val version: Int, | ||
| val bitsPerPixel: Int, | ||
| val size: Int, | ||
| val width: Int, | ||
| val height: Int, | ||
| val redOffset: Int, | ||
| val redLength: Int, | ||
| val blueOffset: Int, | ||
| val blueLength: Int, | ||
| val greenOffset: Int, | ||
| val greenLength: Int, | ||
| val alphaOffset: Int, | ||
| val alphaLength: Int, | ||
| val buffer: ByteArray | ||
| ) { | ||
|
|
||
| fun getARGB(index: Int): Int { | ||
| var value: Int | ||
| val r: Int | ||
| val g: Int | ||
| val b: Int | ||
| val a: Int | ||
| if (bitsPerPixel == 16) { | ||
| value = buffer[index].toInt() and 0x00FF | ||
| value = value or (buffer[index + 1].toInt() shl 8 and 0x0FF00) | ||
| // RGB565 to RGB888 | ||
| // Multiply by 255/31 to convert from 5 bits (31 max) to 8 bits (255) | ||
| r = (value.ushr(11) and 0x1f) * 255 / 31 | ||
| g = (value.ushr(5) and 0x3f) * 255 / 63 | ||
| b = (value and 0x1f) * 255 / 31 | ||
| a = 0xFF // force alpha to opaque if there's no alpha value in the framebuffer. | ||
| } else if (bitsPerPixel == 32) { | ||
| value = buffer[index].toInt() and 0x00FF | ||
| value = value or (buffer[index + 1].toInt() and 0x00FF shl 8) | ||
| value = value or (buffer[index + 2].toInt() and 0x00FF shl 16) | ||
| value = value or (buffer[index + 3].toInt() and 0x00FF shl 24) | ||
| r = value.ushr(redOffset) and getMask(redLength) shl 8 - redLength | ||
| g = value.ushr(greenOffset) and getMask(greenLength) shl 8 - greenLength | ||
| b = value.ushr(blueOffset) and getMask(blueLength) shl 8 - blueLength | ||
| a = value.ushr(alphaOffset) and getMask(alphaLength) shl 8 - alphaLength | ||
| } else { | ||
| throw UnsupportedOperationException("RawImage.getARGB(int) only works in 16 and 32 bit mode.") | ||
| } | ||
|
|
||
| return a shl 24 or (r shl 16) or (g shl 8) or b | ||
| } | ||
|
|
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| private fun getMask(length: Int): Int { | ||
| return (1 shl length) - 1 | ||
| } | ||
|
|
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| fun toBufferedImage(): BufferedImage { | ||
| val image = | ||
| BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB) | ||
|
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| var index = 0 | ||
| val bytesPerPixel = bitsPerPixel shr 3 | ||
| for (y in 0 until height) { | ||
| for (x in 0 until width) { | ||
| image.setRGB(x, y, getARGB(index) or -0x1000000) | ||
| index += bytesPerPixel | ||
| } | ||
| } | ||
| return image | ||
| } | ||
|
|
||
| companion object { | ||
| private fun ByteBuffer.moveToByteArray(): ByteArray { | ||
| rewind() | ||
| val array = ByteArray(remaining()) | ||
| get(array) | ||
| return array | ||
| } | ||
|
|
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| fun from(version: Int, bytes: ByteBuffer, imageBuffer: ByteBuffer): RawImage { | ||
| return when (version) { | ||
| 16 -> | ||
| RawImage( | ||
| version = version, | ||
| bitsPerPixel = bytes.int, | ||
| size = bytes.int, | ||
| width = bytes.int, | ||
| height = bytes.int, | ||
| redOffset = 11, | ||
| redLength = 5, | ||
| greenOffset = 5, | ||
| greenLength = 6, | ||
| blueOffset = 0, | ||
| blueLength = 5, | ||
| alphaOffset = 0, | ||
| alphaLength = 0, | ||
| buffer = imageBuffer.moveToByteArray() | ||
| ) | ||
| 1 -> RawImage( | ||
| version = version, | ||
| bitsPerPixel = bytes.int, | ||
| size = bytes.int, | ||
| width = bytes.int, | ||
| height = bytes.int, | ||
| redOffset = bytes.int, | ||
| redLength = bytes.int, | ||
| blueOffset = bytes.int, | ||
| blueLength = bytes.int, | ||
| greenOffset = bytes.int, | ||
| greenLength = bytes.int, | ||
| alphaOffset = bytes.int, | ||
| alphaLength = bytes.int, | ||
| buffer = imageBuffer.moveToByteArray() | ||
| ) | ||
| else -> throw UnsupportedImageProtocolException(version) | ||
| } | ||
|
|
||
| } | ||
| } | ||
| } |
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