[K/N][Tests] Move some codegen tests to new infra: annotations..coroutines

^KT-61259
2023-12-12 13:30:53 +01:00
parent a1d13f54cb
commit a5f3d5b737
269 changed files with 2207 additions and 0 deletions
@@ -0,0 +1,26 @@
+package codegen.arithmetic.github1856
+
+import kotlin.test.*
+
+object RGBA {
+    fun packFast(r: Int, g: Int, b: Int, a: Int) = (r shl 0) or (g shl 8) or (b shl 16) or (a shl 24)
+
+    fun getFastR(v: Int): Int = (v ushr 0) and 0xFF
+    fun getFastG(v: Int): Int = (v ushr 8) and 0xFF
+    fun getFastB(v: Int): Int = (v ushr 16) and 0xFF
+    fun getFastA(v: Int): Int = (v ushr 24) and 0xFF
+
+    fun premultiplyFastInt(v: Int): Int {
+        val A = getFastA(v) + 1
+        val RB = (((v and 0x00FF00FF) * A) ushr 8) and 0x00FF00FF
+        val G = (((v and 0x0000FF00) * A) ushr 8) and 0x0000FF00
+        return (v and 0x00FFFFFF.inv()) or RB or G
+    }
+}
+
+@Test
+fun main() {
+    val source = listOf(0xFFFFFFFF.toInt(), 0xFFFFFF77.toInt(), 0x777777FF.toInt(), 0x77777777.toInt())
+    val expect = listOf(-1, -137, 2000107383, 2000107319)
+    assertEquals(expect, source.map { RGBA.premultiplyFastInt(it) })
+}