feat(YouTube): add Enable gradient loading screen patch

src/main/kotlin/app/revanced/patches/youtube/general/loadingscreen/GradientLoadingScreenPatch.kt

@@ -0,0 +1,93 @@
+package app.revanced.patches.youtube.general.loadingscreen
+
+import app.revanced.extensions.exception
+import app.revanced.patcher.data.BytecodeContext
+import app.revanced.patcher.extensions.InstructionExtensions.addInstructions
+import app.revanced.patcher.extensions.InstructionExtensions.getInstruction
+import app.revanced.patcher.patch.BytecodePatch
+import app.revanced.patcher.patch.annotation.CompatiblePackage
+import app.revanced.patcher.patch.annotation.Patch
+import app.revanced.patches.youtube.general.loadingscreen.fingerprints.GradientLoadingScreenPrimaryFingerprint
+import app.revanced.patches.youtube.general.loadingscreen.fingerprints.GradientLoadingScreenSecondaryFingerprint
+import app.revanced.patches.youtube.utils.settings.SettingsPatch
+import app.revanced.util.bytecode.getWide32LiteralIndex
+import app.revanced.util.integrations.Constants.GENERAL
+import com.android.tools.smali.dexlib2.iface.instruction.OneRegisterInstruction
+
+@Patch(
+    name = "Enable gradient loading screen",
+    description = "Enables gradient loading screen.",
+    dependencies = [SettingsPatch::class],
+    compatiblePackages = [
+        CompatiblePackage(
+            "com.google.android.youtube",
+            [
+                "18.24.37",
+                "18.25.40",
+                "18.27.36",
+                "18.29.38",
+                "18.30.37",
+                "18.31.40",
+                "18.32.39",
+                "18.33.40",
+                "18.34.38",
+                "18.35.36",
+                "18.36.39"
+            ]
+        )
+    ]
+)
+@Suppress("unused")
+object GradientLoadingScreenPatch : BytecodePatch(
+    setOf(
+        GradientLoadingScreenPrimaryFingerprint,
+        GradientLoadingScreenSecondaryFingerprint
+    )
+) {
+    override fun execute(context: BytecodeContext) {
+
+        /**
+         * YouTube v18.29.38 ~
+         */
+        GradientLoadingScreenSecondaryFingerprint.result?.let {
+            it.mutableMethod.apply {
+                val targetIndex = getWide32LiteralIndex(45418917) + 2
+                val targetRegister = getInstruction<OneRegisterInstruction>(targetIndex).registerA
+
+                addInstructions(
+                    targetIndex + 1, """
+                        invoke-static { }, $GENERAL->enableGradientLoadingScreen()Z
+                        move-result v$targetRegister
+                        """
+                )
+            }
+        }
+
+        GradientLoadingScreenPrimaryFingerprint.result?.let {
+            it.mutableMethod.apply {
+                val targetIndex = getWide32LiteralIndex(45412406) + 2
+                val targetRegister = getInstruction<OneRegisterInstruction>(targetIndex).registerA
+
+                addInstructions(
+                    targetIndex + 1, """
+                        invoke-static { }, $GENERAL->enableGradientLoadingScreen()Z
+                        move-result v$targetRegister
+                        """
+                )
+            }
+        } ?: throw GradientLoadingScreenPrimaryFingerprint.exception
+
+        /**
+         * Add settings
+         */
+        SettingsPatch.addPreference(
+            arrayOf(
+                "PREFERENCE: GENERAL_SETTINGS",
+                "SETTINGS: ENABLE_GRADIENT_LOADING_SCREEN"
+            )
+        )
+
+        SettingsPatch.updatePatchStatus("enable-gradient-loading-screen")
+
+    }
+}

src/main/kotlin/app/revanced/patches/youtube/general/loadingscreen/fingerprints/GradientLoadingScreenPrimaryFingerprint.kt

@@ -0,0 +1,8 @@
+package app.revanced.patches.youtube.general.loadingscreen.fingerprints
+
+import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
+import app.revanced.util.bytecode.isWide32LiteralExists
+
+object GradientLoadingScreenPrimaryFingerprint : MethodFingerprint(
+    customFingerprint = { methodDef, _ -> methodDef.isWide32LiteralExists(45412406) }
+)

src/main/kotlin/app/revanced/patches/youtube/general/loadingscreen/fingerprints/GradientLoadingScreenSecondaryFingerprint.kt

@@ -0,0 +1,8 @@
+package app.revanced.patches.youtube.general.loadingscreen.fingerprints
+
+import app.revanced.patcher.fingerprint.method.impl.MethodFingerprint
+import app.revanced.util.bytecode.isWide32LiteralExists
+
+object GradientLoadingScreenSecondaryFingerprint : MethodFingerprint(
+    customFingerprint = { methodDef, _ -> methodDef.isWide32LiteralExists(45418917) }
+)