1 files changed, 58 insertions, 0 deletions
diff --git a/src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/MemoryUtil.kt b/src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/MemoryUtil.kt
new file mode 100644
index 000000000..390767e47
--- /dev/null
+++ b/src/android/app/src/main/java/org/yuzu/yuzu_emu/utils/MemoryUtil.kt
@@ -0,0 +1,58 @@
+// SPDX-FileCopyrightText: 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.yuzu.yuzu_emu.utils
+
+import android.app.ActivityManager
+import android.content.Context
+import java.util.Locale
+
+class MemoryUtil(context: Context) {
+
+    private val Long.floatForm: String
+        get() = String.format(Locale.ROOT, "%.2f", this.toDouble())
+
+    private fun bytesToSizeUnit(size: Long): String {
+        return when {
+            size < Kb -> size.floatForm + " byte"
+            size < Mb -> (size / Kb).floatForm + " KB"
+            size < Gb -> (size / Mb).floatForm + " MB"
+            size < Tb -> (size / Gb).floatForm + " GB"
+            size < Pb -> (size / Tb).floatForm + " TB"
+            size < Eb -> (size / Pb).floatForm + " Pb"
+            else -> (size / Eb).floatForm + " Eb"
+        }
+    }
+
+    private val totalMemory =
+        with(context.getSystemService(Context.ACTIVITY_SERVICE) as ActivityManager) {
+            val memInfo = ActivityManager.MemoryInfo()
+            getMemoryInfo(memInfo)
+            memInfo.totalMem
+        }
+
+    fun isLessThan(minimum: Int, size: Long): Boolean {
+        return when (size) {
+            Kb -> totalMemory < Mb && totalMemory < minimum
+            Mb -> totalMemory < Gb && (totalMemory / Mb) < minimum
+            Gb -> totalMemory < Tb && (totalMemory / Gb) < minimum
+            Tb -> totalMemory < Pb && (totalMemory / Tb) < minimum
+            Pb -> totalMemory < Eb && (totalMemory / Pb) < minimum
+            Eb -> totalMemory / Eb < minimum
+            else -> totalMemory < Kb && totalMemory < minimum
+        }
+    }
+
+    fun getDeviceRAM(): String {
+        return bytesToSizeUnit(totalMemory)
+    }
+
+    companion object {
+        const val Kb: Long = 1024
+        const val Mb = Kb * 1024
+        const val Gb = Mb * 1024
+        const val Tb = Gb * 1024
+        const val Pb = Tb * 1024
+        const val Eb = Pb * 1024
+    }
+}