Added something more similar to Jdenticons.

app/src/main/java/com/futo/platformplayer/views/IdenticonView.kt

@@ -1,32 +1,30 @@
 package com.futo.platformplayer.views
 
 import android.content.Context
+import android.graphics.Bitmap
 import android.graphics.Canvas
 import android.graphics.Color
 import android.graphics.Paint
 import android.graphics.Path
+import android.graphics.PointF
 import android.util.AttributeSet
 import android.view.View
 import java.security.MessageDigest
+import kotlin.math.max
+import kotlin.math.min
 
 class IdenticonView(context: Context, attrs: AttributeSet) : View(context, attrs) {
     var hashString: String = "default"
         set(value) {
             field = value
             hash = md5(value)
+            iconGenerator = null
             invalidate()
         }
 
     private var hash = ByteArray(16)
-
+    private var iconGenerator: IconGenerator? = null
     private val path = Path()
-    private val paint = Paint().apply {
-        style = Paint.Style.FILL
-    }
-
-    init {
-        hashString = "default"
-    }
 
     override fun onDraw(canvas: Canvas) {
         super.onDraw(canvas)
@@ -39,16 +37,11 @@ class IdenticonView(context: Context, attrs: AttributeSet) : View(context, attrs
 
         canvas.clipPath(clipPath)
 
-        val size = width.coerceAtMost(height) / 5
-        val colors = generateColorsFromHash(hash)
-
-        for (x in 0 until 5) {
-            for (y in 0 until 5) {
-                val shapeIndex = getShapeIndex(x, y, hash)
-                paint.color = colors[shapeIndex % colors.size]
-                drawShape(canvas, x, y, size, shapeIndex)
-            }
+        if (iconGenerator == null) {
+            iconGenerator = IconGenerator(min(height, width).toFloat(), hash)
         }
+
+        iconGenerator?.render(canvas)
     }
 
     private fun md5(input: String): ByteArray {
@@ -56,62 +49,408 @@ class IdenticonView(context: Context, attrs: AttributeSet) : View(context, attrs
         return md.digest(input.toByteArray(Charsets.UTF_8))
     }
 
-    private fun generateColorsFromHash(hash: ByteArray): List<Int> {
-        val hue = hash[0].toFloat() / 255f
-        return listOf(
-            adjustColor(hue, 0.5f, 0.4f),
-            adjustColor(hue, 0.5f, 0.8f),
-            adjustColor(hue, 0.5f, 0.3f, 0.9f),
-            adjustColor(hue, 0.5f, 0.4f, 0.7f)
-        )
+    interface Shape {
+        fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint)
     }
 
-    private fun getShapeIndex(x: Int, y: Int, hash: ByteArray): Int {
-        val index = if (x < 3) y else 4 - y
-        return hash[index].toInt() shr x * 2 and 0x03
+    class CutCorner : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val k = size * 0.42f
+            val path = Path().apply {
+                moveTo(0f, 0f)
+                lineTo(size, 0f)
+                lineTo(size, size - k * 2)
+                lineTo(size - k, size)
+                lineTo(0f, size)
+                close()
+            }
+            canvas.drawPath(path, paint)
+        }
     }
 
-    private fun drawShape(canvas: Canvas, x: Int, y: Int, size: Int, shapeIndex: Int) {
-        val left = x * size.toFloat()
-        val top = y * size.toFloat()
-        val path = Path()
+    class SideTriangle : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val w = size / 2
+            val h = size * 0.8f
+            val path = Path().apply {
+                moveTo(size - w, 0f)
+                lineTo(size, h)
+                lineTo(size - w, h)
+                close()
+            }
+            canvas.drawPath(path, paint)
+        }
+    }
 
-        when (shapeIndex) {
-            0 -> {
-                // Square
-                path.addRect(left, top, left + size, top + size, Path.Direction.CW)
+    class MiddleSquare : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val s = size / 3
+            canvas.drawRect(s, s, size - s, size - s, paint)
+        }
+    }
+
+    class CornerSquare : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val inner = size * 0.1f
+            val outer = max(1f, size * 0.25f)
+            canvas.drawRect(outer, outer, size - inner - outer, size - inner - outer, paint)
+        }
+    }
+
+    class OffCenterCircle : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val m = size * 0.15f
+            val s = size * 0.5f
+            canvas.drawCircle(size - s - m, size - s - m, s / 2, paint)
+        }
+    }
+
+    class NegativeTriangle : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val inner = size * 0.1f
+            val outer = inner * 4
+            val path = Path().apply {
+                addRect(0f, 0f, size, size, Path.Direction.CW)
+                moveTo(outer, outer)
+                lineTo(size - inner, outer)
+                lineTo(outer + (size - outer - inner) / 2, size - inner)
+                close()
             }
-            1 -> {
-                // Circle
-                val radius = size / 2f
-                path.addCircle(left + radius, top + radius, radius, Path.Direction.CW)
+            canvas.drawPath(path, paint)
+        }
+    }
+
+    class CutSquare : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val path = Path().apply {
+                moveTo(0f, 0f)
+                lineTo(size, 0f)
+                lineTo(size, size * 0.7f)
+                lineTo(size * 0.4f, size * 0.4f)
+                lineTo(size * 0.7f, size)
+                lineTo(0f, size)
+                close()
             }
-            2 -> {
-                // Diamond
-                val halfSize = size / 2f
-                path.moveTo(left + halfSize, top)
-                path.lineTo(left + size, top + halfSize)
-                path.lineTo(left + halfSize, top + size)
-                path.lineTo(left, top + halfSize)
-                path.close()
+            canvas.drawPath(path, paint)
+        }
+    }
+
+    class CornerPlusTriangle : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val halfSize = size / 2
+            canvas.drawRect(0f, 0f, size, halfSize, paint)
+            canvas.drawRect(0f, halfSize, halfSize, size, paint)
+            val path = Path().apply {
+                moveTo(halfSize, halfSize)
+                lineTo(size, halfSize)
+                lineTo(halfSize, size)
+                close()
             }
-            3 -> {
-                // Triangle
-                path.moveTo(left + size / 2f, top)
-                path.lineTo(left + size, top + size)
-                path.lineTo(left, top + size)
-                path.close()
+            canvas.drawPath(path, paint)
+        }
+    }
+
+    class NegativeSquare : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val inner = size * 0.14f
+            val outer = size * 0.35f
+            val path = Path().apply {
+                addRect(0f, 0f, size, size, Path.Direction.CW)
+                addRect(outer, outer, size - outer - inner, size - outer - inner, Path.Direction.CCW)
+            }
+            canvas.drawPath(path, paint)
+        }
+    }
+
+    class NegativeCircle : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val inner = size * 0.12f
+            val outer = inner * 3
+            val path = Path().apply {
+                addRect(0f, 0f, size, size, Path.Direction.CW)
+                addCircle(outer, outer, (size - inner - outer) / 2, Path.Direction.CCW)
+            }
+            canvas.drawPath(path, paint)
+        }
+    }
+
+    class NegativeRhombus : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val m = size * 0.25f
+            val path = Path().apply {
+                addRect(0f, 0f, size, size, Path.Direction.CW)
+                moveTo(m, size / 2)
+                lineTo(size / 2, m)
+                lineTo(size - m, size / 2)
+                lineTo(size / 2, size - m)
+                close()
+            }
+            canvas.drawPath(path, paint)
+        }
+    }
+
+    class ConditionalCircle : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            if (index == 0) {
+                val m = size * 0.4f
+                val s = size * 1.2f
+                canvas.drawCircle(m, m, s / 2, paint)
+            }
+        }
+    }
+
+    class HalfTriangle : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val path = Path().apply {
+                moveTo(size / 2, size / 2)
+                lineTo(size, size / 2)
+                lineTo(size / 2, size)
+                close()
+            }
+            canvas.drawPath(path, paint)
+        }
+    }
+
+    class Triangle(val corner: Int = 0) : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val path = Path().apply {
+                when (corner) {
+                    0 -> {
+                        moveTo(0f, 0f)
+                        lineTo(size, 0f)
+                        lineTo(0f, size)
+                    }
+                    1 -> {
+                        moveTo(size, 0f)
+                        lineTo(size, size)
+                        lineTo(0f, size)
+                    }
+                    2 -> {
+                        moveTo(0f, 0f)
+                        lineTo(size, 0f)
+                        lineTo(size, size)
+                    }
+                    3 -> {
+                        moveTo(0f, 0f)
+                        lineTo(0f, size)
+                        lineTo(size, size)
+                    }
+                }
+                close()
+            }
+            canvas.drawPath(path, paint)
+        }
+    }
+
+    class BottomHalfTriangle : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val path = Path().apply {
+                moveTo(0f, size / 2)
+                lineTo(size, size / 2)
+                lineTo(size / 2, size)
+                close()
+            }
+            canvas.drawPath(path, paint)
+        }
+    }
+
+    class Rhombus : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val path = Path().apply {
+                moveTo(size / 2, 0f)
+                lineTo(size, size / 2)
+                lineTo(size / 2, size)
+                lineTo(0f, size / 2)
+                close()
+            }
+            canvas.drawPath(path, paint)
+        }
+    }
+
+    class Circle : Shape {
+        override fun draw(canvas: Canvas, size: Float, index: Int, paint: Paint) {
+            val m = size / 6
+            canvas.drawCircle(m, m, size / 2 - m, paint)
+        }
+    }
+
+    class IconGenerator(private val size: Float, private val hash: ByteArray) {
+        private val digits: ByteArray
+        private var selectedColors = arrayOf<Paint>()
+
+        init {
+            digits = ByteArray(max(12, hash.size * 2))
+            var index = 0
+            for (byte in hash) {
+                if (index >= digits.size) {
+                    break
+                }
+                digits[index] = ((byte.toInt() shr 4) and 0x0f).toByte()
+                digits[index + 1] = (byte.toInt() and 0x0f).toByte()
+                index += 2
+            }
+            selectColors()
+        }
+
+        private fun selectColors() {
+            val value = hash.copyOfRange(hash.size - 4, hash.size).fold(0) { acc, byte ->
+                (acc shl 8) or (byte.toInt() and 0xFF)
+            } and 0x0FFFFFFF
+            val colorTheme = ColorTheme(hue = value.toFloat() / 0x0FFFFFFF)
+
+            val selectedColorIndices = mutableListOf<Int>()
+            for (i in 0 until 3) {
+                val index = (digits[8 + i].toInt() % colorTheme.colors.size)
+                selectedColorIndices.add(colorTheme.validateIndex(index, selectedColorIndices))
+            }
+
+            selectedColors = selectedColorIndices.map { index ->
+                Paint().apply {
+                    color = colorTheme.colors[index]
+                    style = Paint.Style.FILL
+                }
+            }.toTypedArray()
+        }
+
+        fun renderBitmap(): Bitmap {
+            val bitmap = Bitmap.createBitmap(size.toInt(), size.toInt(), Bitmap.Config.ARGB_8888)
+            val canvas = Canvas(bitmap)
+            render(canvas)
+            return bitmap
+        }
+
+        fun render(canvas: Canvas) {
+            canvas.drawColor(Color.WHITE)
+
+            renderShape(canvas, 0, outerShapes, 2, 3, arrayOf(
+                PointF(1f, 0f),
+                PointF(2f, 0f),
+                PointF(2f, 3f),
+                PointF(1f, 3f),
+                PointF(0f, 1f),
+                PointF(3f, 1f),
+                PointF(3f, 2f),
+                PointF(0f, 2f),
+            ))
+            renderShape(canvas, 1, outerShapes, 4, 5, arrayOf(
+                PointF(0f, 0f),
+                PointF(3f, 0f),
+                PointF(3f, 3f),
+                PointF(0f, 3f),
+            ))
+            renderShape(canvas, 2, centerShapes, 1, null, arrayOf(
+                PointF(1f, 1f),
+                PointF(2f, 1f),
+                PointF(2f, 2f),
+                PointF(1f, 2f),
+            ))
+        }
+
+        private fun renderShape(
+            canvas: Canvas,
+            colorIndex: Int,
+            shapes: Array<Shape>,
+            index: Int,
+            rotationIndex: Int?,
+            positions: Array<PointF>
+        ) {
+            val cellSize = size / 4
+            var r = rotationIndex?.let { digits[it].toInt() } ?: 0
+            val shape = shapes[digits[index].toInt() % shapes.size]
+
+            val paint = Paint().apply {
+                color = selectedColors[colorIndex % selectedColors.size].color
+                style = Paint.Style.FILL
+            }
+
+            for ((idx, position) in positions.withIndex()) {
+                canvas.save()
+                canvas.translate(position.x * cellSize, position.y * cellSize)
+                canvas.translate(cellSize / 2, cellSize / 2)
+                canvas.rotate((r % 4) * 90f)
+                canvas.translate(-cellSize / 2, -cellSize / 2)
+
+                shape.draw(canvas, cellSize, idx, paint)
+                canvas.restore()
+                r++
             }
         }
 
-        canvas.drawPath(path, paint)
+        class ColorTheme(val hue: Float, val saturation: Float = 0.5f) {
+            val colors: List<Int>
+
+            init {
+                colors = listOf(
+                    // Dark gray
+                    grayscaleColor(0f),
+                    // Mid color
+                    hslColor(hue, saturation, colorLightness(0.5f)),
+                    // Light gray
+                    grayscaleColor(1f),
+                    // Light color
+                    hslColor(hue, saturation, colorLightness(1f)),
+                    // Dark color
+                    hslColor(hue, saturation, colorLightness(0f))
+                )
+            }
+
+            fun validateIndex(index: Int, selected: List<Int>): Int {
+                return if (isDuplicate(index, listOf(0, 4), selected) || isDuplicate(index, listOf(2, 3), selected)) {
+                    1
+                } else {
+                    index
+                }
+            }
+
+            private fun isDuplicate(index: Int, values: List<Int>, selected: List<Int>): Boolean {
+                if (!values.contains(index)) return false
+                return values.any { selected.contains(it) }
+            }
+
+            private fun colorLightness(value: Float): Float = lightness(value, 0.4f, 0.8f)
+
+            private fun grayscaleLightness(value: Float): Float = lightness(value, 0.3f, 0.9f)
+
+            private fun lightness(value: Float, min: Float, max: Float): Float {
+                val lightness = min + value * (max - min)
+                return minOf(1f, maxOf(0f, lightness))
+            }
+
+            private fun grayscaleColor(lightness: Float): Int {
+                return Color.HSVToColor(floatArrayOf(0f, 0f, lightness))
+            }
+
+            private fun hslColor(hue: Float, saturation: Float, lightness: Float): Int {
+                return Color.HSVToColor(floatArrayOf(hue, saturation, lightness))
+            }
+        }
     }
 
-    private fun adjustColor(hue: Float, saturation: Float, lightness: Float, alpha: Float = 1.0f): Int {
-        val color = Color.HSVToColor(floatArrayOf(hue * 360, saturation, lightness))
-        val red = Color.red(color)
-        val green = Color.green(color)
-        val blue = Color.blue(color)
-        return Color.argb((alpha * 255).toInt(), red, green, blue)
+    companion object {
+        val centerShapes = arrayOf(
+            CutCorner(),
+            SideTriangle(),
+            MiddleSquare(),
+            CornerSquare(),
+            OffCenterCircle(),
+            NegativeTriangle(),
+            CutSquare(),
+            HalfTriangle(),
+            CornerPlusTriangle(),
+            CutSquare(),
+            NegativeCircle(),
+            HalfTriangle(),
+            NegativeRhombus(),
+            ConditionalCircle()
+        )
+
+        val outerShapes = arrayOf(
+            Triangle(),
+            BottomHalfTriangle(),
+            Rhombus(),
+            Circle(),
+        )
+
+        private const val TAG = "IdenticonView"
     }
-}
+}

app/src/main/java/com/futo/platformplayer/views/others/CreatorThumbnail.kt

@@ -34,6 +34,7 @@ class CreatorThumbnail : ConstraintLayout {
         _imageChannelThumbnail = findViewById(R.id.image_channel_thumbnail);
         _identicon = findViewById(R.id.identicon);
         _imageChannelThumbnail.clipToOutline = true;
+        _identicon.clipToOutline = true;
         _imageChannelThumbnail.visibility = View.GONE
         _imageNewActivity = findViewById(R.id.image_new_activity);
         _imageNeoPass = findViewById(R.id.image_neopass);

app/src/main/res/layout/view_creator_thumbnail.xml

@@ -12,8 +12,8 @@
         android:layout_width="match_parent"
         android:layout_height="0dp"
         app:layout_constraintDimensionRatio="1:1"
-        app:srcCompat="@drawable/ic_futo_logo"
         android:background="@drawable/rounded_outline"
+        android:clipToOutline="true"
         android:contentDescription="@string/channel_image"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent"
@@ -24,7 +24,6 @@
         android:layout_width="match_parent"
         android:layout_height="0dp"
         app:layout_constraintDimensionRatio="1:1"
-        app:srcCompat="@drawable/ic_futo_logo"
         android:background="@drawable/rounded_outline"
         android:clipToOutline="true"
         android:scaleType="centerCrop"