Commoniazation, part 2. (#154)

skiko/src/jvmMain/kotlin/org/jetbrains/skia/AnimationFrameInfo.kt → skiko/src/commonMain/kotlin/org/jetbrains/skia/AnimationFrameInfo.kt

@@ -79,10 +79,10 @@ class AnimationFrameInfo(
         requiredFrame,
         duration,
         fullyReceived,
-        ColorAlphaType.values().get(alphaTypeOrdinal),
+        ColorAlphaType.values()[alphaTypeOrdinal],
         hasAlphaWithinBounds,
         AnimationDisposalMode.values()[disposalMethodOrdinal],
-        BlendMode.values().get(blendModeOrdinal),
+        BlendMode.values()[blendModeOrdinal],
         frameRect
     )
     /**
@@ -251,16 +251,16 @@ class AnimationFrameInfo(
         if (isHasAlphaWithinBounds != other.isHasAlphaWithinBounds) return false
         val `this$_alphaType`: Any = alphaType
         val `other$_alphaType`: Any = other.alphaType
-        if (if (`this$_alphaType` == null) `other$_alphaType` != null else `this$_alphaType` != `other$_alphaType`) return false
+        if (`this$_alphaType` != `other$_alphaType`) return false
         val `this$_disposalMethod`: Any = disposalMethod
         val `other$_disposalMethod`: Any = other.disposalMethod
-        if (if (`this$_disposalMethod` == null) `other$_disposalMethod` != null else `this$_disposalMethod` != `other$_disposalMethod`) return false
+        if (`this$_disposalMethod` != `other$_disposalMethod`) return false
         val `this$_blendMode`: Any = blendMode
         val `other$_blendMode`: Any = other.blendMode
-        if (if (`this$_blendMode` == null) `other$_blendMode` != null else `this$_blendMode` != `other$_blendMode`) return false
+        if (`this$_blendMode` != `other$_blendMode`) return false
         val `this$_frameRect`: Any = frameRect
         val `other$_frameRect`: Any = other.frameRect
-        return if (if (`this$_frameRect` == null) `other$_frameRect` != null else `this$_frameRect` != `other$_frameRect`) false else true
+        return `this$_frameRect` == `other$_frameRect`
     }
 
     protected fun canEqual(other: Any?): Boolean {
@@ -275,18 +275,18 @@ class AnimationFrameInfo(
         result = result * PRIME + if (isFullyReceived) 79 else 97
         result = result * PRIME + if (isHasAlphaWithinBounds) 79 else 97
         val `$_alphaType`: Any = alphaType
-        result = result * PRIME + (`$_alphaType`?.hashCode() ?: 43)
+        result = result * PRIME + (`$_alphaType`.hashCode())
         val `$_disposalMethod`: Any = disposalMethod
-        result = result * PRIME + (`$_disposalMethod`?.hashCode() ?: 43)
+        result = result * PRIME + `$_disposalMethod`.hashCode()
         val `$_blendMode`: Any = blendMode
-        result = result * PRIME + (`$_blendMode`?.hashCode() ?: 43)
+        result = result * PRIME + `$_blendMode`.hashCode()
         val `$_frameRect`: Any = frameRect
-        result = result * PRIME + (`$_frameRect`?.hashCode() ?: 43)
+        result = result * PRIME + `$_frameRect`.hashCode()
         return result
     }
 
     override fun toString(): String {
-        return "AnimationFrameInfo(_requiredFrame=" + requiredFrame + ", _duration=" + duration + ", _fullyReceived=" + isFullyReceived + ", _alphaType=" + alphaType + ", _hasAlphaWithinBounds=" + isHasAlphaWithinBounds + ", _disposalMethod=" + disposalMethod + ", _blendMode=" + blendMode + ", _frameRect=" + frameRect + ")"
+        return "AnimationFrameInfo(_requiredFrame=$requiredFrame, _duration=$duration, _fullyReceived=$isFullyReceived, _alphaType=$alphaType, _hasAlphaWithinBounds=$isHasAlphaWithinBounds, _disposalMethod=$disposalMethod, _blendMode=$blendMode, _frameRect=$frameRect)"
     }
 
     /**

skiko/src/jvmMain/kotlin/org/jetbrains/skia/BackendRenderTarget.kt → skiko/src/commonMain/kotlin/org/jetbrains/skia/BackendRenderTarget.kt

@@ -3,6 +3,7 @@ package org.jetbrains.skia
 import org.jetbrains.skia.impl.Library.Companion.staticLoad
 import org.jetbrains.skia.impl.Managed
 import org.jetbrains.skia.impl.Stats
+import kotlin.jvm.JvmStatic
 
 class BackendRenderTarget internal constructor(ptr: Long) : Managed(ptr, _FinalizerHolder.PTR) {
     companion object {

skiko/src/jvmMain/kotlin/org/jetbrains/skia/BreakIterator.kt → skiko/src/commonMain/kotlin/org/jetbrains/skia/BreakIterator.kt

@@ -2,9 +2,9 @@ package org.jetbrains.skia
 
 import org.jetbrains.skia.impl.Library.Companion.staticLoad
 import org.jetbrains.skia.impl.Managed
-import org.jetbrains.skia.impl.Native
 import org.jetbrains.skia.impl.Stats
-import java.lang.ref.Reference
+import org.jetbrains.skia.impl.reachabilityBarrier
+import kotlin.jvm.JvmStatic
 
 /**
  *
@@ -190,7 +190,7 @@ import java.lang.ref.Reference
  * with punctuation or other non-word characters.
 </blockquote> *
  */
-class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHolder.PTR), Cloneable {
+class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHolder.PTR) {
     companion object {
         /**
          * DONE is returned by previous() and next() after all valid
@@ -255,7 +255,6 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
         /**
          * Returns a new BreakIterator instance for character breaks for the default locale.
          */
-        @JvmOverloads
         fun makeCharacterInstance(locale: String? = null): BreakIterator {
             Stats.onNativeCall()
             return BreakIterator(_nMake(0, locale)) // UBRK_CHARACTER
@@ -266,7 +265,6 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
         /**
          * Returns a new BreakIterator instance for word breaks for the default locale.
          */
-        @JvmOverloads
         fun makeWordInstance(locale: String? = null): BreakIterator {
             Stats.onNativeCall()
             return BreakIterator(_nMake(1, locale)) // UBRK_WORD
@@ -277,7 +275,6 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
         /**
          * Returns a new BreakIterator instance for line breaks for the default locale.
          */
-        @JvmOverloads
         fun makeLineInstance(locale: String? = null): BreakIterator {
             Stats.onNativeCall()
             return BreakIterator(_nMake(2, locale)) // UBRK_LINE
@@ -288,7 +285,6 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
         /**
          * Returns a new BreakIterator instance for sentence breaks for the default locale.
          */
-        @JvmOverloads
         fun makeSentenceInstance(locale: String? = null): BreakIterator {
             Stats.onNativeCall()
             return BreakIterator(_nMake(3, locale)) // UBRK_SENTENCE
@@ -323,7 +319,7 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
     /**
      * Create a copy of this iterator
      */
-    public override fun clone(): BreakIterator {
+    fun clone(): BreakIterator {
         Stats.onNativeCall()
         return BreakIterator(_nClone(_ptr))
     }
@@ -342,7 +338,7 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
             Stats.onNativeCall()
             _nCurrent(_ptr)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
     }
 
@@ -358,7 +354,7 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
             Stats.onNativeCall()
             _nNext(_ptr)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
     }
 
@@ -402,7 +398,7 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
             Stats.onNativeCall()
             _nPrevious(_ptr)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
     }
 
@@ -414,7 +410,7 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
             Stats.onNativeCall()
             _nFirst(_ptr)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
     }
 
@@ -426,7 +422,7 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
             Stats.onNativeCall()
             _nLast(_ptr)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
     }
 
@@ -443,7 +439,7 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
             Stats.onNativeCall()
             _nPreceding(_ptr, offset)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
     }
 
@@ -460,7 +456,7 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
             Stats.onNativeCall()
             _nFollowing(_ptr, offset)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
     }
 
@@ -472,7 +468,7 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
             Stats.onNativeCall()
             _nIsBoundary(_ptr, offset)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
     }
 
@@ -493,7 +489,7 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
             Stats.onNativeCall()
             _nGetRuleStatus(_ptr)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
 
     /**
@@ -511,7 +507,7 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
             Stats.onNativeCall()
             _nGetRuleStatuses(_ptr)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
 
     /**
@@ -521,10 +517,10 @@ class BreakIterator internal constructor(ptr: Long) : Managed(ptr, _FinalizerHol
         try {
             Stats.onNativeCall()
             _text = U16String(text)
-            _nSetText(_ptr, Native.Companion.getPtr(_text))
+            _nSetText(_ptr, getPtr(_text))
         } finally {
-            Reference.reachabilityFence(this)
-            Reference.reachabilityFence(_text)
+            reachabilityBarrier(this)
+            reachabilityBarrier(_text)
         }
     }
 

skiko/src/jvmMain/kotlin/org/jetbrains/skia/ColorFilter.kt → skiko/src/commonMain/kotlin/org/jetbrains/skia/ColorFilter.kt

@@ -2,9 +2,9 @@ package org.jetbrains.skia
 
 import org.jetbrains.skia.impl.Library.Companion.staticLoad
 import org.jetbrains.skia.impl.RefCnt
-import org.jetbrains.skia.impl.Native
 import org.jetbrains.skia.impl.Stats
-import java.lang.ref.Reference
+import org.jetbrains.skia.impl.reachabilityBarrier
+import kotlin.jvm.JvmStatic
 
 class ColorFilter : RefCnt {
     companion object {
@@ -13,13 +13,13 @@ class ColorFilter : RefCnt {
                 Stats.onNativeCall()
                 ColorFilter(
                     _nMakeComposed(
-                        Native.Companion.getPtr(outer),
-                        Native.Companion.getPtr(inner)
+                        getPtr(outer),
+                        getPtr(inner)
                     )
                 )
             } finally {
-                Reference.reachabilityFence(outer)
-                Reference.reachabilityFence(inner)
+                reachabilityBarrier(outer)
+                reachabilityBarrier(inner)
             }
         }
 
@@ -43,13 +43,13 @@ class ColorFilter : RefCnt {
                 ColorFilter(
                     _nMakeLerp(
                         t,
-                        Native.Companion.getPtr(dst),
-                        Native.Companion.getPtr(src)
+                        getPtr(dst),
+                        getPtr(src)
                     )
                 )
             } finally {
-                Reference.reachabilityFence(dst)
-                Reference.reachabilityFence(src)
+                reachabilityBarrier(dst)
+                reachabilityBarrier(src)
             }
         }
 
@@ -62,20 +62,20 @@ class ColorFilter : RefCnt {
         }
 
         fun makeTable(table: ByteArray): ColorFilter {
-            assert(table.size == 256) { "Expected 256 elements, got " + table.size }
+            require(table.size == 256) { "Expected 256 elements, got " + table.size }
             return ColorFilter(_nMakeTable(table))
         }
 
         fun makeTableARGB(a: ByteArray?, r: ByteArray?, g: ByteArray?, b: ByteArray?): ColorFilter {
-            assert(a == null || a.size == 256) { "Expected 256 elements in a[], got " + a!!.size }
-            assert(r == null || r.size == 256) { "Expected 256 elements in r[], got " + r!!.size }
-            assert(g == null || g.size == 256) { "Expected 256 elements in g[], got " + g!!.size }
-            assert(b == null || b.size == 256) { "Expected 256 elements in b[], got " + b!!.size }
+            require(a == null || a.size == 256) { "Expected 256 elements in a[], got " + a!!.size }
+            require(r == null || r.size == 256) { "Expected 256 elements in r[], got " + r!!.size }
+            require(g == null || g.size == 256) { "Expected 256 elements in g[], got " + g!!.size }
+            require(b == null || b.size == 256) { "Expected 256 elements in b[], got " + b!!.size }
             return ColorFilter(_nMakeTableARGB(a, r, g, b))
         }
 
         fun makeOverdraw(colors: IntArray): ColorFilter {
-            assert(colors.size == 6) { "Expected 6 elements, got " + colors.size }
+            require(colors.size == 6) { "Expected 6 elements, got " + colors.size }
             return ColorFilter(_nMakeOverdraw(colors[0], colors[1], colors[2], colors[3], colors[4], colors[5]))
         }
 

skiko/src/jvmMain/kotlin/org/jetbrains/skia/ColorInfo.kt → skiko/src/commonMain/kotlin/org/jetbrains/skia/ColorInfo.kt

@@ -47,13 +47,13 @@ class ColorInfo(colorType: ColorType, alphaType: ColorAlphaType, colorSpace: Col
         if (!other.canEqual(this as Any)) return false
         val `this$_colorType`: Any = colorType
         val `other$_colorType`: Any = other.colorType
-        if (if (`this$_colorType` == null) `other$_colorType` != null else `this$_colorType` != `other$_colorType`) return false
+        if (`this$_colorType` != `other$_colorType`) return false
         val `this$_alphaType`: Any = alphaType
         val `other$_alphaType`: Any = other.alphaType
-        if (if (`this$_alphaType` == null) `other$_alphaType` != null else `this$_alphaType` != `other$_alphaType`) return false
+        if (`this$_alphaType` != `other$_alphaType`) return false
         val `this$_colorSpace`: Any? = colorSpace
         val `other$_colorSpace`: Any? = other.colorSpace
-        return if (if (`this$_colorSpace` == null) `other$_colorSpace` != null else `this$_colorSpace` != `other$_colorSpace`) false else true
+        return !if (`this$_colorSpace` == null) `other$_colorSpace` != null else `this$_colorSpace` != `other$_colorSpace`
     }
 
     protected fun canEqual(other: Any?): Boolean {
@@ -64,16 +64,16 @@ class ColorInfo(colorType: ColorType, alphaType: ColorAlphaType, colorSpace: Col
         val PRIME = 59
         var result = 1
         val `$_colorType`: Any = colorType
-        result = result * PRIME + (`$_colorType`?.hashCode() ?: 43)
+        result = result * PRIME + `$_colorType`.hashCode()
         val `$_alphaType`: Any = alphaType
-        result = result * PRIME + (`$_alphaType`?.hashCode() ?: 43)
+        result = result * PRIME + `$_alphaType`.hashCode()
         val `$_colorSpace`: Any? = colorSpace
-        result = result * PRIME + (`$_colorSpace`?.hashCode() ?: 43)
+        result = result * PRIME + `$_colorSpace`.hashCode()
         return result
     }
 
     override fun toString(): String {
-        return "ColorInfo(_colorType=" + colorType + ", _alphaType=" + alphaType + ", _colorSpace=" + colorSpace + ")"
+        return "ColorInfo(_colorType=$colorType, _alphaType=$alphaType, _colorSpace=$colorSpace)"
     }
 
     fun withColorType(_colorType: ColorType): ColorInfo {

skiko/src/jvmMain/kotlin/org/jetbrains/skia/ColorMatrix.kt → skiko/src/commonMain/kotlin/org/jetbrains/skia/ColorMatrix.kt

 package org.jetbrains.skia
 
-import java.util.*
-
 class ColorMatrix(vararg mat: Float) {
     val mat: FloatArray
     override fun equals(o: Any?): Boolean {
@@ -9,7 +7,7 @@ class ColorMatrix(vararg mat: Float) {
         if (o !is ColorMatrix) return false
         val other = o
         if (!other.canEqual(this as Any)) return false
-        return if (!Arrays.equals(mat, other.mat)) false else true
+        return mat.contentEquals(other.mat)
     }
 
     protected fun canEqual(other: Any?): Boolean {
@@ -19,16 +17,16 @@ class ColorMatrix(vararg mat: Float) {
     override fun hashCode(): Int {
         val PRIME = 59
         var result = 1
-        result = result * PRIME + Arrays.hashCode(mat)
+        result = result * PRIME + mat.contentHashCode()
         return result
     }
 
     override fun toString(): String {
-        return "ColorMatrix(_mat=" + Arrays.toString(mat) + ")"
+        return "ColorMatrix(_mat=$mat)"
     }
 
     init {
-        assert(mat.size == 20) { (if ("Expected 20 elements, got $mat" == null) null else mat.size)!! }
+        require(mat.size == 20) { "Expected 20 elements, got $mat" }
         this.mat = mat
     }
 }
\ No newline at end of file

skiko/src/jvmMain/kotlin/org/jetbrains/skia/ColorSpace.kt → skiko/src/commonMain/kotlin/org/jetbrains/skia/ColorSpace.kt

@@ -3,7 +3,8 @@ package org.jetbrains.skia
 import org.jetbrains.skia.impl.Library.Companion.staticLoad
 import org.jetbrains.skia.impl.Managed
 import org.jetbrains.skia.impl.Stats
-import java.lang.ref.Reference
+import org.jetbrains.skia.impl.reachabilityBarrier
+import kotlin.jvm.JvmStatic
 
 class ColorSpace : Managed {
     companion object {
@@ -40,8 +41,8 @@ class ColorSpace : Managed {
                 )
             )
         } finally {
-            Reference.reachabilityFence(this)
-            Reference.reachabilityFence(to)
+            reachabilityBarrier(this)
+            reachabilityBarrier(to)
         }
     }
 
@@ -57,7 +58,7 @@ class ColorSpace : Managed {
             Stats.onNativeCall()
             _nIsGammaCloseToSRGB(_ptr)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
 
     /**
@@ -68,7 +69,7 @@ class ColorSpace : Managed {
             Stats.onNativeCall()
             _nIsGammaLinear(_ptr)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
 
     /**
@@ -90,7 +91,7 @@ class ColorSpace : Managed {
             Stats.onNativeCall()
             _nIsSRGB(_ptr)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
 
     private object _FinalizerHolder {

skiko/src/commonMain/kotlin/org/jetbrains/skia/ColorType.kt

 package org.jetbrains.skia
 
+import kotlin.jvm.JvmStatic
+
 /**
  * Describes how pixel bits encode color. A pixel may be an alpha mask, a
  * grayscale, RGB, or ARGB.
@@ -314,5 +316,19 @@ enum class ColorType {
          * Native ARGB 32-bit encoding
          */
         var N32 = BGRA_8888
+        @JvmStatic external fun _nIsAlwaysOpaque(value: Int): Boolean
     }
+
+    /**
+     * Returns true if ColorType always decodes alpha to 1.0, making the pixel
+     * fully opaque. If true, ColorType does not reserve bits to encode alpha.
+     *
+     * @return  true if alpha is always set to 1.0
+     */
+    val isAlwaysOpaque: Boolean
+        get() {
+            return _nIsAlwaysOpaque(ordinal)
+        }
+
 }
+

skiko/src/jvmMain/kotlin/org/jetbrains/skia/DirectContext.kt → skiko/src/commonMain/kotlin/org/jetbrains/skia/DirectContext.kt

@@ -3,7 +3,8 @@ package org.jetbrains.skia
 import org.jetbrains.skia.impl.Library.Companion.staticLoad
 import org.jetbrains.skia.impl.RefCnt
 import org.jetbrains.skia.impl.Stats
-import java.lang.ref.Reference
+import org.jetbrains.skia.impl.reachabilityBarrier
+import kotlin.jvm.JvmStatic
 
 class DirectContext internal constructor(ptr: Long) : RefCnt(ptr) {
     companion object {
@@ -114,7 +115,7 @@ class DirectContext internal constructor(ptr: Long) : RefCnt(ptr) {
             Stats.onNativeCall()
             _nAbandon(_ptr)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
     }
 }
\ No newline at end of file

skiko/src/jvmMain/kotlin/org/jetbrains/skia/GLBackendState.kt → skiko/src/commonMain/kotlin/org/jetbrains/skia/GLBackendState.kt

@@ -15,8 +15,4 @@ enum class GLBackendState(internal val _bit: Int) {
         1 shl 8
     ),
     FIXED_FUNCTION(1 shl 9), MISC(1 shl 10), PATH_RENDERING(1 shl 11);
-
-    companion object {
-        internal val _values = values()
-    }
 }
\ No newline at end of file

skiko/src/jvmMain/kotlin/org/jetbrains/skia/IRect.kt → skiko/src/commonMain/kotlin/org/jetbrains/skia/IRect.kt

 package org.jetbrains.skia
 
+import kotlin.jvm.JvmStatic
+
 class IRect internal constructor(val left: Int, val top: Int, val right: Int, val bottom: Int) {
     val width: Int
         get() = right - left
@@ -8,9 +10,9 @@ class IRect internal constructor(val left: Int, val top: Int, val right: Int, va
 
     fun intersect(other: IRect): IRect? {
         return if (right <= other.left || other.right <= left || bottom <= other.top || other.bottom <= top) null else IRect(
-            Math.max(left, other.left), Math.max(top, other.top), Math.min(
+            maxOf(left, other.left), maxOf(top, other.top), minOf(
                 right, other.right
-            ), Math.min(bottom, other.bottom)
+            ), minOf(bottom, other.bottom)
         )
     }
 

skiko/src/jvmMain/kotlin/org/jetbrains/skia/RRect.kt → skiko/src/commonMain/kotlin/org/jetbrains/skia/RRect.kt

 package org.jetbrains.skia
 
-import java.util.*
+import kotlin.jvm.JvmStatic
+import kotlin.math.abs
 
 class RRect internal constructor(l: Float, t: Float, r: Float, b: Float, val radii: FloatArray) :
     Rect(l, t, r, b) {
@@ -12,28 +13,26 @@ class RRect internal constructor(l: Float, t: Float, r: Float, b: Float, val rad
                 break
             }
         }
-        return if (becomesRect) Rect.Companion.makeLTRB(
+        return if (becomesRect) makeLTRB(
             left - spread,
             top - spread,
-            Math.max(left - spread, right + spread),
-            Math.max(top - spread, bottom + spread)
+            maxOf(left - spread, right + spread),
+            maxOf(top - spread, bottom + spread)
         ) else {
-            val radii = Arrays.copyOf(radii, radii.size)
-            for (i in radii.indices) radii[i] = Math.max(0.0f, radii[i] + spread)
+            val radii = radii.copyOf()
+            for (i in radii.indices) radii[i] = maxOf(0.0f, radii[i] + spread)
             RRect(
                 left - spread,
                 top - spread,
-                Math.max(left - spread, right + spread),
-                Math.max(top - spread, bottom + spread),
+                maxOf(left - spread, right + spread),
+                maxOf(top - spread, bottom + spread),
                 radii
             )
         }
     }
 
     override fun toString(): String {
-        return "RRect(_left=" + left + ", _top=" + top + ", _right=" + right + ", _bottom=" + bottom + ", _radii=" + Arrays.toString(
-            radii
-        ) + ")"
+        return "RRect(_left=$left, _top=$top, _right=$right, _bottom=$bottom, _radii=$radii)"
     }
 
     override fun equals(o: Any?): Boolean {
@@ -42,7 +41,7 @@ class RRect internal constructor(l: Float, t: Float, r: Float, b: Float, val rad
         val other = o
         if (!other.canEqual(this as Any)) return false
         if (!super.equals(o)) return false
-        return if (!Arrays.equals(radii, other.radii)) false else true
+        return radii.contentEquals(other.radii)
     }
 
     override fun canEqual(other: Any?): Boolean {
@@ -52,7 +51,7 @@ class RRect internal constructor(l: Float, t: Float, r: Float, b: Float, val rad
     override fun hashCode(): Int {
         val PRIME = 59
         var result = super.hashCode()
-        result = result * PRIME + Arrays.hashCode(radii)
+        result = result * PRIME + radii.contentHashCode()
         return result
     }
 
@@ -101,11 +100,11 @@ class RRect internal constructor(l: Float, t: Float, r: Float, b: Float, val rad
         }
 
         fun makeOvalLTRB(l: Float, t: Float, r: Float, b: Float): RRect {
-            return RRect(l, t, r, b, floatArrayOf(Math.abs(r - l) / 2.0f, Math.abs(b - t) / 2.0f))
+            return RRect(l, t, r, b, floatArrayOf(abs(r - l) / 2.0f, abs(b - t) / 2.0f))
         }
 
         fun makePillLTRB(l: Float, t: Float, r: Float, b: Float): RRect {
-            return RRect(l, t, r, b, floatArrayOf(Math.min(Math.abs(r - l), Math.abs(t - b)) / 2.0f))
+            return RRect(l, t, r, b, floatArrayOf(minOf(abs(r - l), abs(t - b)) / 2.0f))
         }
 
         fun makeXYWH(l: Float, t: Float, w: Float, h: Float, radius: Float): RRect {
@@ -151,7 +150,7 @@ class RRect internal constructor(l: Float, t: Float, r: Float, b: Float, val rad
         }
 
         fun makePillXYWH(l: Float, t: Float, w: Float, h: Float): RRect {
-            return RRect(l, t, l + w, t + h, floatArrayOf(Math.min(w, h) / 2.0f))
+            return RRect(l, t, l + w, t + h, floatArrayOf(minOf(w, h) / 2.0f))
         }
     }
 }
\ No newline at end of file

skiko/src/jvmMain/kotlin/org/jetbrains/skia/Rect.kt → skiko/src/commonMain/kotlin/org/jetbrains/skia/Rect.kt

 package org.jetbrains.skia
 
+import kotlin.jvm.JvmStatic
+
 open class Rect internal constructor(val left: Float, val top: Float, val right: Float, val bottom: Float) {
     val width: Float
         get() = right - left
@@ -8,11 +10,11 @@ open class Rect internal constructor(val left: Float, val top: Float, val right:
 
     fun intersect(other: Rect): Rect? {
         return if (right <= other.left || other.right <= left || bottom <= other.top || other.bottom <= top) null else Rect(
-            Math.max(
+            maxOf(
                 left, other.left
-            ), Math.max(top, other.top), Math.min(
+            ), maxOf(top, other.top), minOf(
                 right, other.right
-            ), Math.min(bottom, other.bottom)
+            ), minOf(bottom, other.bottom)
         )
     }
 
@@ -38,11 +40,11 @@ open class Rect internal constructor(val left: Float, val top: Float, val right:
 
     open fun inflate(spread: Float): Rect {
         return if (spread <= 0) makeLTRB(
-            left - spread, top - spread, Math.max(
+            left - spread, top - spread, maxOf(
                 left - spread, right + spread
-            ), Math.max(top - spread, bottom + spread)
-        ) else RRect.Companion.makeLTRB(
-            left - spread, top - spread, Math.max(left - spread, right + spread), Math.max(
+            ), maxOf(top - spread, bottom + spread)
+        ) else RRect.makeLTRB(
+            left - spread, top - spread, maxOf(left - spread, right + spread), maxOf(
                 top - spread, bottom + spread
             ), spread
         )
@@ -56,10 +58,10 @@ open class Rect internal constructor(val left: Float, val top: Float, val right:
         if (o !is Rect) return false
         val other = o
         if (!other.canEqual(this as Any)) return false
-        if (java.lang.Float.compare(left, other.left) != 0) return false
-        if (java.lang.Float.compare(top, other.top) != 0) return false
-        if (java.lang.Float.compare(right, other.right) != 0) return false
-        return if (java.lang.Float.compare(bottom, other.bottom) != 0) false else true
+        if (left.compareTo(other.left) != 0) return false
+        if (top.compareTo(other.top) != 0) return false
+        if (right.compareTo(other.right) != 0) return false
+        return bottom.compareTo(other.bottom) == 0
     }
 
     protected open fun canEqual(other: Any?): Boolean {
@@ -69,15 +71,15 @@ open class Rect internal constructor(val left: Float, val top: Float, val right:
     override fun hashCode(): Int {
         val PRIME = 59
         var result = 1
-        result = result * PRIME + java.lang.Float.floatToIntBits(left)
-        result = result * PRIME + java.lang.Float.floatToIntBits(top)
-        result = result * PRIME + java.lang.Float.floatToIntBits(right)
-        result = result * PRIME + java.lang.Float.floatToIntBits(bottom)
+        result = result * PRIME + left.toBits()
+        result = result * PRIME + top.toBits()
+        result = result * PRIME + right.toBits()
+        result = result * PRIME + bottom.toBits()
         return result
     }
 
     override fun toString(): String {
-        return "Rect(_left=" + left + ", _top=" + top + ", _right=" + right + ", _bottom=" + bottom + ")"
+        return "Rect(_left=$left, _top=$top, _right=$right, _bottom=$bottom)"
     }
 
     companion object {

skiko/src/jvmMain/kotlin/org/jetbrains/skia/U16String.kt → skiko/src/commonMain/kotlin/org/jetbrains/skia/U16String.kt

@@ -3,7 +3,8 @@ package org.jetbrains.skia
 import org.jetbrains.skia.impl.Library.Companion.staticLoad
 import org.jetbrains.skia.impl.Managed
 import org.jetbrains.skia.impl.Stats
-import java.lang.ref.Reference
+import org.jetbrains.skia.impl.reachabilityBarrier
+import kotlin.jvm.JvmStatic
 
 /**
  * Kotlin mirror of std::vector<jchar> (UTF-16)
@@ -28,7 +29,7 @@ class U16String internal constructor(ptr: Long) : Managed(ptr, _FinalizerHolder.
             Stats.onNativeCall()
             _nToString(_ptr)
         } finally {
-            Reference.reachabilityFence(this)
+            reachabilityBarrier(this)
         }
     }
 

skiko/src/commonMain/kotlin/org/jetbrains/skia/impl/Library.kt

+package org.jetbrains.skia.impl
+
+expect class Library {
+    companion object {
+        fun staticLoad()
+    }
+}

skiko/src/commonMain/kotlin/org/jetbrains/skia/impl/Managed.kt

+package org.jetbrains.skia.impl
+
+expect abstract class Managed(ptr: Long, finalizer: Long, managed: Boolean = true) : Native {
+    open fun close()
+}
\ No newline at end of file

skiko/src/commonMain/kotlin/org/jetbrains/skia/impl/Native.kt

+package org.jetbrains.skia.impl
+
+expect abstract class Native(ptr: Long) {
+    var _ptr: Long
+
+    companion object {
+        fun getPtr(n: Native?): Long
+    }
+}
+
+expect fun reachabilityBarrier(obj: Any?)
\ No newline at end of file

skiko/src/commonMain/kotlin/org/jetbrains/skia/impl/RefCnt.kt

+package org.jetbrains.skia.impl
+
+expect abstract class RefCnt : Managed {
+    protected constructor(ptr: Long)
+    protected constructor(ptr: Long, allowClose: Boolean)
+}
\ No newline at end of file

skiko/src/commonMain/kotlin/org/jetbrains/skia/impl/Stats.kt

+package org.jetbrains.skia.impl
+
+expect object Stats {
+    fun onNativeCall()
+
+    fun onAllocated(className: String)
+
+    fun onDeallocated(className: String)
+}
\ No newline at end of file

skiko/src/jvmMain/kotlin/org/jetbrains/skia/Extensions.jvm.kt

-package org.jetbrains.skia
-
-class Extensions {
-    companion object {
-        @JvmStatic
-        external fun _nIsAlwaysOpaque(value: Int): Boolean
-    }
-}
-
-/**
- * Returns true if ColorType always decodes alpha to 1.0, making the pixel
- * fully opaque. If true, ColorType does not reserve bits to encode alpha.
- *
- * @return  true if alpha is always set to 1.0
- */
-val ColorType.isAlwaysOpaque: Boolean
-    get() {
-        return Extensions._nIsAlwaysOpaque(ordinal)
-    }
-
-
-

skiko/src/jvmMain/kotlin/org/jetbrains/skia/ImageInfo.kt

@@ -236,7 +236,7 @@ class ImageInfo(val colorInfo: ColorInfo, val width: Int, val height: Int) {
          * @return  ImageInfo with [ColorType.N32]
          */
         fun makeN32(width: Int, height: Int, alphaType: ColorAlphaType): ImageInfo {
-            return ImageInfo(ColorInfo(ColorType.Companion.N32, alphaType, null), width, height)
+            return ImageInfo(ColorInfo(ColorType.N32, alphaType, null), width, height)
         }
 
         /**
@@ -263,14 +263,14 @@ class ImageInfo(val colorInfo: ColorInfo, val width: Int, val height: Int) {
          * @return  ImageInfo with [ColorType.N32] and [ColorAlphaType.PREMUL]
          */
         fun makeN32Premul(width: Int, height: Int): ImageInfo {
-            return ImageInfo(ColorInfo(ColorType.Companion.N32, ColorAlphaType.PREMUL, null), width, height)
+            return ImageInfo(ColorInfo(ColorType.N32, ColorAlphaType.PREMUL, null), width, height)
         }
 
         /**
          * @return  ImageInfo with [ColorType.N32] and [ColorAlphaType.PREMUL]
          */
         fun makeN32Premul(width: Int, height: Int, colorSpace: ColorSpace?): ImageInfo {
-            return ImageInfo(ColorInfo(ColorType.Companion.N32, ColorAlphaType.PREMUL, colorSpace), width, height)
+            return ImageInfo(ColorInfo(ColorType.N32, ColorAlphaType.PREMUL, colorSpace), width, height)
         }
 
         /**

skiko/src/jvmMain/kotlin/org/jetbrains/skia/impl/Library.kt → skiko/src/jvmMain/kotlin/org/jetbrains/skia/impl/Library.jvm.kt

@@ -3,11 +3,11 @@ package org.jetbrains.skia.impl
 import org.jetbrains.skiko.Library
 import java.util.concurrent.atomic.AtomicBoolean
 
-class Library {
-    companion object {
+actual class Library {
+    actual companion object {
         var loaded = AtomicBoolean(false)
         @JvmStatic
-        fun staticLoad() {
+        actual fun staticLoad() {
             if (!loaded.compareAndExchange(false, true)) {
               Library.load()
             }

skiko/src/jvmMain/kotlin/org/jetbrains/skia/impl/Log.kt

@@ -70,6 +70,6 @@ object Log {
                                 4 else if ("ERROR" == property)
                                     5 else if ("NONE" == property)
                                         6 else
-                                            throw IllegalArgumentException("Unknown log level: " + property)
+                                            throw IllegalArgumentException("Unknown log level: $property")
     }
 }
\ No newline at end of file

skiko/src/jvmMain/kotlin/org/jetbrains/skia/impl/Managed.kt → skiko/src/jvmMain/kotlin/org/jetbrains/skia/impl/Managed.jvm.kt

@@ -2,10 +2,10 @@ package org.jetbrains.skia.impl
 
 import java.lang.ref.Cleaner
 
-abstract class Managed @JvmOverloads constructor(ptr: Long, finalizer: Long, managed: Boolean = true) : Native(ptr),
+actual abstract class Managed actual constructor(ptr: Long, finalizer: Long, managed: Boolean) : Native(ptr),
     AutoCloseable {
     private var _cleanable: Cleaner.Cleanable? = null
-    override fun close() {
+    actual override fun close() {
         if (0L == _ptr) throw RuntimeException("Object already closed: $javaClass, _ptr=$_ptr") else if (null == _cleanable) throw RuntimeException(
             "Object is not managed in JVM, can't close(): $javaClass, _ptr=$_ptr"
         ) else {

skiko/src/jvmMain/kotlin/org/jetbrains/skia/impl/Native.kt → skiko/src/jvmMain/kotlin/org/jetbrains/skia/impl/Native.jvm.kt

@@ -2,10 +2,10 @@ package org.jetbrains.skia.impl
 
 import java.lang.ref.Reference
 
-abstract class Native(ptr: Long) {
-    var _ptr: Long
+actual abstract class Native actual constructor(ptr: Long) {
+    actual var _ptr: Long
     override fun toString(): String {
-        return javaClass.simpleName + "(_ptr=0x" + java.lang.Long.toString(_ptr, 16) + ")"
+        return javaClass.simpleName + "(_ptr=0x" + _ptr.toString(16) + ")"
     }
 
     override fun equals(other: Any?): Boolean {
@@ -30,8 +30,8 @@ abstract class Native(ptr: Long) {
         return java.lang.Long.hashCode(_ptr)
     }
 
-    companion object {
-        fun getPtr(n: Native?): Long {
+    actual companion object {
+        actual fun getPtr(n: Native?): Long {
             return n?._ptr ?: 0
         }
     }
@@ -41,3 +41,7 @@ abstract class Native(ptr: Long) {
         _ptr = ptr
     }
 }
+
+actual fun reachabilityBarrier(obj: Any?) {
+    Reference.reachabilityFence(obj)
+}
\ No newline at end of file

skiko/src/jvmMain/kotlin/org/jetbrains/skia/impl/RefCnt.kt → skiko/src/jvmMain/kotlin/org/jetbrains/skia/impl/RefCnt.jvm.kt

@@ -2,9 +2,9 @@ package org.jetbrains.skia.impl
 
 import java.lang.ref.Reference
 
-abstract class RefCnt : Managed {
-    protected constructor(ptr: Long) : super(ptr, _FinalizerHolder.PTR) {}
-    protected constructor(ptr: Long, allowClose: Boolean) : super(ptr, _FinalizerHolder.PTR, allowClose) {}
+actual abstract class RefCnt : Managed {
+    protected actual constructor(ptr: Long) : super(ptr, _FinalizerHolder.PTR) {}
+    protected actual constructor(ptr: Long, allowClose: Boolean) : super(ptr, _FinalizerHolder.PTR, allowClose)
 
     val refCount: Int
         get() = try {

skiko/src/jvmMain/kotlin/org/jetbrains/skia/impl/Stats.kt → skiko/src/jvmMain/kotlin/org/jetbrains/skia/impl/Stats.jvm.kt

@@ -2,27 +2,23 @@ package org.jetbrains.skia.impl
 
 import java.util.concurrent.ConcurrentHashMap
 
-object Stats {
+actual object Stats {
     var enabled = false
     var nativeCalls: Long = 0
     var allocated: MutableMap<String, Int> = ConcurrentHashMap()
-    fun onNativeCall() {
+    actual fun onNativeCall() {
         if (enabled) nativeCalls++
     }
 
-    fun onAllocated(className: String) {
-        if (enabled) allocated.merge(className, 1) { a: Int?, b: Int? ->
-            Integer.sum(
-                a!!, b!!
-            )
+    actual fun onAllocated(className: String) {
+        if (enabled) allocated.merge(className, 1) { a: Int, b: Int ->
+            a + b
         }
     }
 
-    fun onDeallocated(className: String) {
-        if (enabled) allocated.merge(className, -1) { a: Int?, b: Int? ->
-            Integer.sum(
-                a!!, b!!
-            )
+    actual fun onDeallocated(className: String) {
+        if (enabled) allocated.merge(className, -1) { a: Int, b: Int ->
+            a + b
         }
     }
 }
\ No newline at end of file

skiko/src/jvmMain/kotlin/org/jetbrains/skia/paragraph/DecorationStyle.kt

@@ -63,7 +63,7 @@ class DecorationStyle(
         if (java.lang.Float.compare(thicknessMultiplier, other.thicknessMultiplier) != 0) return false
         val `this$_lineStyle`: Any = lineStyle
         val `other$_lineStyle`: Any = other.lineStyle
-        return if (if (`this$_lineStyle` == null) `other$_lineStyle` != null else `this$_lineStyle` != `other$_lineStyle`) false else true
+        return `this$_lineStyle` == `other$_lineStyle`
     }
 
     protected fun canEqual(other: Any?): Boolean {
@@ -85,7 +85,7 @@ class DecorationStyle(
     }
 
     override fun toString(): String {
-        return "DecorationStyle(_underline=" + _underline + ", _overline=" + _overline + ", _lineThrough=" + _lineThrough + ", _gaps=" + _gaps + ", _color=" + color + ", _lineStyle=" + lineStyle + ", _thicknessMultiplier=" + thicknessMultiplier + ")"
+        return "DecorationStyle(_underline=$_underline, _overline=$_overline, _lineThrough=$_lineThrough, _gaps=$_gaps, _color=$color, _lineStyle=$lineStyle, _thicknessMultiplier=$thicknessMultiplier)"
     }
 
     fun withUnderline(_underline: Boolean): DecorationStyle {

skiko/src/jvmMain/kotlin/org/jetbrains/skia/shaper/BidiRun.kt

@@ -16,7 +16,7 @@ class BidiRun(
         val other = o
         if (!other.canEqual(this as Any)) return false
         if (end != other.end) return false
-        return if (level != other.level) false else true
+        return level == other.level
     }
 
     protected fun canEqual(other: Any?): Boolean {
@@ -32,6 +32,6 @@ class BidiRun(
     }
 
     override fun toString(): String {
-        return "BidiRun(_end=" + end + ", _level=" + level + ")"
+        return "BidiRun(_end=$end, _level=$level)"
     }
 }
\ No newline at end of file

skiko/src/macosX64Main/kotlin/org/jetbrains/skia/impl/Library.native.kt

+package org.jetbrains.skia.impl
+
+actual class Library {
+    actual companion object {
+        actual fun staticLoad() {
+            TODO()
+        }
+    }
+}

skiko/src/macosX64Main/kotlin/org/jetbrains/skia/impl/Managed.native.kt

+package org.jetbrains.skia.impl
+
+actual abstract class Managed actual constructor(ptr: Long, finalizer: Long, managed: Boolean) : Native(ptr) {
+    actual open fun close() {
+        TODO()
+    }
+}
\ No newline at end of file

skiko/src/macosX64Main/kotlin/org/jetbrains/skia/impl/Native.native.kt

+package org.jetbrains.skia.impl
+
+actual abstract class Native actual constructor(ptr: Long) {
+    actual var _ptr: Long
+
+    actual companion object {
+        actual fun getPtr(n: Native?): Long {
+            return n?._ptr ?: 0
+        }
+    }
+
+    init {
+        if (ptr == 0L) throw RuntimeException("Can't wrap nullptr")
+        _ptr = ptr
+    }
+}
+
+actual fun reachabilityBarrier(obj: Any?) {
+    TODO()
+}
\ No newline at end of file

skiko/src/macosX64Main/kotlin/org/jetbrains/skia/impl/RefCnt.native.kt

+package org.jetbrains.skia.impl
+
+actual abstract class RefCnt : Managed {
+    actual protected constructor(ptr: Long): super(ptr, 0L, false) { TODO() }
+    actual protected constructor(ptr: Long, allowClose: Boolean): super(ptr, 0, allowClose) { TODO() }
+}
\ No newline at end of file

skiko/src/macosX64Main/kotlin/org/jetbrains/skia/impl/Stats.native.kt

+package org.jetbrains.skia.impl
+
+actual object Stats {
+    actual fun onNativeCall() {
+        TODO()
+    }
+
+    actual fun onAllocated(className: String) {
+        TODO()
+    }
+
+    actual fun onDeallocated(className: String) {
+        TODO()
+    }
+}
\ No newline at end of file