From b9ea990df6e0bd7156ac8a83d6340d83887c53e4 Mon Sep 17 00:00:00 2001
From: gdk <gab.dark.100@gmail.com>
Date: Mon, 14 Feb 2022 22:28:41 -0300
Subject: [PATCH] Zero DMA region X/Y after copy

---
 Ryujinx.Graphics.Gpu/Engine/Dma/DmaClass.cs | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/Ryujinx.Graphics.Gpu/Engine/Dma/DmaClass.cs b/Ryujinx.Graphics.Gpu/Engine/Dma/DmaClass.cs
index 763391b40..abc48a0ad 100644
--- a/Ryujinx.Graphics.Gpu/Engine/Dma/DmaClass.cs
+++ b/Ryujinx.Graphics.Gpu/Engine/Dma/DmaClass.cs
@@ -124,13 +124,11 @@ namespace Ryujinx.Graphics.Gpu.Engine.Dma
         /// <summary>
         /// Performs a buffer to buffer, or buffer to texture copy.
         /// </summary>
-        /// <param name="argument">The LaunchDma call argument</param>
-        private void DmaCopy(int argument)
+        /// <param name="copyFlags">Flags passed on the DMA launch method</param>
+        private void DmaCopy(CopyFlags copyFlags)
         {
             var memoryManager = _channel.MemoryManager;
 
-            CopyFlags copyFlags = (CopyFlags)argument;
-
             bool srcLinear = copyFlags.HasFlag(CopyFlags.SrcLinear);
             bool dstLinear = copyFlags.HasFlag(CopyFlags.DstLinear);
             bool copy2D = copyFlags.HasFlag(CopyFlags.MultiLineEnable);
@@ -329,8 +327,17 @@ namespace Ryujinx.Graphics.Gpu.Engine.Dma
         /// <param name="argument">Method call argument</param>
         private void LaunchDma(int argument)
         {
-            DmaCopy(argument);
+            CopyFlags copyFlags = (CopyFlags)argument;
+
+            DmaCopy(copyFlags);
             ReleaseSemaphore(argument);
+
+            if (copyFlags.HasFlag(CopyFlags.MultiLineEnable))
+            {
+                // Some applications are not initializing the state and expects it to be zero.
+                _state.State.SetSrcOrigin = 0;
+                _state.State.SetDstOrigin = 0;
+            }
         }
     }
 }