Refactor descrambling bitmap

app/src/main/kotlin/org/koitharu/kotatsu/core/parser/BitmapImpl.kt

@@ -1,48 +0,0 @@
-package org.koitharu.kotatsu.core.parser
-
-import android.graphics.Canvas
-import android.graphics.Bitmap as AndroidBitmap
-import android.graphics.Rect as AndroidRect
-import org.koitharu.kotatsu.parsers.bitmap.Bitmap
-import org.koitharu.kotatsu.parsers.bitmap.Rect
-
-class BitmapImpl private constructor() : Bitmap {
-
-	lateinit var androidBitmap: AndroidBitmap
-
-	private lateinit var canvas: Canvas
-
-	override val height: Int
-		get() = androidBitmap.height
-
-	override val width: Int
-		get() = androidBitmap.width
-
-	override fun drawBitmap(sourceBitmap: Bitmap, src: Rect, dst: Rect) {
-		val androidSourceBitmap = (sourceBitmap as BitmapImpl).androidBitmap
-
-		canvas.drawBitmap(androidSourceBitmap, src.toAndroidRect(), dst.toAndroidRect(), null)
-	}
-
-	companion object {
-		fun create(width: Int, height: Int): Bitmap {
-			val instance = BitmapImpl()
-			instance.androidBitmap = AndroidBitmap.createBitmap(width, height, AndroidBitmap.Config.ARGB_8888)
-			instance.canvas = Canvas(instance.androidBitmap)
-
-			return instance
-		}
-
-		fun create(bitmap: AndroidBitmap): Bitmap {
-			val instance = BitmapImpl()
-			instance.androidBitmap = bitmap.copy(AndroidBitmap.Config.ARGB_8888, true)
-			instance.canvas = Canvas(instance.androidBitmap)
-
-			return instance
-		}
-	}
-}
-
-private fun Rect.toAndroidRect(): AndroidRect {
-	return AndroidRect(left, top, right, bottom)
-}

app/src/main/kotlin/org/koitharu/kotatsu/core/util/ext/Http.kt

@@ -5,6 +5,7 @@ import okhttp3.HttpUrl
 import okhttp3.MediaType.Companion.toMediaType
 import okhttp3.RequestBody.Companion.toRequestBody
 import okhttp3.Response
+import okhttp3.ResponseBody
 import okhttp3.internal.closeQuietly
 import okio.IOException
 import org.json.JSONObject
@@ -40,6 +41,8 @@ fun Response.ensureSuccess() = apply {
 	}
 }
 
+fun Response.requireBody(): ResponseBody = checkNotNull(body) { "Response body is null" }
+
 fun Cookie.newBuilder(): Cookie.Builder = Cookie.Builder().also { c ->
 	c.name(name)
 	c.value(value)