kunofellasleep

func image(from mtlTexture: MTLTexture) -> UIImage {
    //画像サイズ
    let w = mtlTexture.width
    let h = mtlTexture.height
    let bytesPerPixel: Int = 4
    let imageByteCount = w * h * bytesPerPixel
    let bytesPerRow = w * bytesPerPixel
    var src = [UInt8](repeating: 0, count: Int(imageByteCount))
    //CGImageに変換
    let region = MTLRegionMake2D(0, 0, w, h)

kunofellasleep

import Metal
import MetalKit

class ImageProcessor: NSObject {
    
    //ハードウェアとしてのGPUを抽象化したプロトコル
    lazy var device: MTLDevice! = MTLCreateSystemDefaultDevice()
    //コマンドバッファの実行順を管理するキュー
    var commandQueue: MTLCommandQueue!

kunofellasleep

kernel void sharpen(
                   texture2d<float, access::write> outTex [[texture(0)]],
                   texture2d<float, access::read> inTex [[texture(1)]],
                   uint2 gid [[thread_position_in_grid]]) {
    float4 c = float4(0.0, 0.0, 0.0, 1.0);
    //隣接ピクセルを使用して色を決定するためのパラメータ
    float weight[3][3] = {
        {0, -1, 0},
        {-1,  5, -1},
        {0, -1, 0}

kunofellasleep

kernel void chromaticAberration(
                                texture2d<float, access::write> outTex [[texture(0)]],
                                texture2d<float, access::read> inTex [[texture(1)]],
                                uint2 gid [[thread_position_in_grid]]) {
    float filterLevel = 3.5;
    float4 c = float4(0.0, 0.0, 0.0, 1.0);
    //収差に使用するレイヤーの色味
    float3 weight[4] = {
        float3(0.0f, 0.0f, 0.5f),
        float3(0.0f, 0.5f, 0.5f),

kunofellasleep

kernel void contrast(
                     texture2d<float, access::write> outTex [[texture(0)]],
                     texture2d<float, access::read> inTex [[texture(1)]],
                     uint2 gid [[thread_position_in_grid]]) {
    //HIGH: More than 1, LOW: Less than 1
    float filterLevel = 1.2;
    float4 c = inTex.read(gid).rgba;
    c = float4((c.rgb - float3(0.5)) * filterLevel + float3(0.5), 1.0);
    outTex.write(c.rgba, gid);
}

kunofellasleep

kernel void saturation(
                       texture2d<float, access::write> outTex [[texture(0)]],
                       texture2d<float, access::read> inTex [[texture(1)]],
                       uint2 gid [[thread_position_in_grid]]) {
    //HIGH: More than 1, LOW: Less than 1
    float filterLevel = 1.1;
    float4 c = inTex.read(gid).rgba;
    float3 hsv = rgb2hsv(c.rgb);
    hsv[1] = hsv[1] * filterLevel;
    c.rgb = hsv2rgb(hsv);

kunofellasleep

kernel void blendAdd(
                  texture2d<float, access::write> outTex [[texture(0)]],
                  texture2d<float, access::read> inTex [[texture(1)]],
                  texture2d<float, access::read> inTex2 [[texture(2)]],
                  uint2 gid [[thread_position_in_grid]]) {
    float4 c = inTex.read(gid).rgba;
    float4 add = inTex2.read(gid).rgba;
    c.rgb += add.rgb;
    outTex.write(c.rgba, gid);
}

kunofellasleep

import UIKit

class InstaStories: NSObject {
    
    private let urlScheme = URL(string: "instagram-stories://share")!
    
    enum optionsKey: String {
        case StickerImage = "com.instagram.sharedSticker.stickerImage"
        case bgImage = "com.instagram.sharedSticker.backgroundImage"
        case bgVideo = "com.instagram.sharedSticker.backgroundVideo"

kunofellasleep

keytool -genkey -v -keyalg RSA -keystore /Users/kuno/path/is/here/[name].keystore -alias [appname] -validity 10000

kunofellasleep

adb install -r /Users/path/is/here/app.apk