diff --git a/CMakeLists.txt b/CMakeLists.txt
index 96c84036..2229ea1e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -103,6 +103,7 @@ add_library(lego1 SHARED
   LEGO1/mxdirectdraw.cpp
   LEGO1/mxdiskstreamcontroller.cpp
   LEGO1/mxdiskstreamprovider.cpp
+  LEGO1/mxdisplaysurface.cpp
   LEGO1/mxdsaction.cpp
   LEGO1/mxdsanim.cpp
   LEGO1/mxdschunk.cpp
diff --git a/LEGO1/mxdisplaysurface.cpp b/LEGO1/mxdisplaysurface.cpp
new file mode 100644
index 00000000..edf1cb1a
--- /dev/null
+++ b/LEGO1/mxdisplaysurface.cpp
@@ -0,0 +1,136 @@
+#include "mxdisplaysurface.h"
+
+DECOMP_SIZE_ASSERT(MxDisplaySurface, 0xac);
+
+// OFFSET: LEGO1 0x100ba500
+MxDisplaySurface::MxDisplaySurface()
+{
+  this->Reset();
+}
+
+// OFFSET: LEGO1 0x100ba5a0
+MxDisplaySurface::~MxDisplaySurface()
+{
+  this->Clear();
+}
+
+// OFFSET: LEGO1 0x100ba610
+void MxDisplaySurface::Reset()
+{
+  this->m_ddSurface1 = NULL;
+  this->m_ddSurface2 = NULL;
+  this->m_ddClipper = NULL;
+  this->m_16bitPal = NULL;
+  this->m_initialized = FALSE;
+  memset(&this->m_surfaceDesc, 0, sizeof(this->m_surfaceDesc));
+}
+
+// OFFSET: LEGO1 0x100ba790
+MxResult MxDisplaySurface::Init(MxVideoParam &p_videoParam, LPDIRECTDRAWSURFACE p_ddSurface1, LPDIRECTDRAWSURFACE p_ddSurface2, LPDIRECTDRAWCLIPPER p_ddClipper)
+{
+  MxResult result = SUCCESS;
+
+  this->m_videoParam = p_videoParam;
+  this->m_ddSurface1 = p_ddSurface1;
+  this->m_ddSurface2 = p_ddSurface2;
+  this->m_ddClipper = p_ddClipper;
+  this->m_initialized = FALSE;
+
+  memset(&this->m_surfaceDesc, 0, sizeof(this->m_surfaceDesc));
+  this->m_surfaceDesc.dwSize = sizeof(this->m_surfaceDesc);
+
+  if (this->m_ddSurface2->GetSurfaceDesc(&this->m_surfaceDesc))
+    result = FAILURE;
+
+  return result;
+}
+
+// OFFSET: LEGO1 0x100ba7f0 STUB
+MxResult MxDisplaySurface::Create(MxVideoParam *p_videoParam)
+{
+  return 0;
+}
+
+// OFFSET: LEGO1 0x100baa90
+void MxDisplaySurface::Clear()
+{
+  if (this->m_initialized) {
+    if (this->m_ddSurface2)
+      this->m_ddSurface2->Release();
+
+    if (this->m_ddSurface1)
+      this->m_ddSurface1->Release();
+
+    if (this->m_ddClipper)
+      this->m_ddClipper->Release();
+  }
+
+  if (this->m_16bitPal)
+    delete this->m_16bitPal;
+
+  this->Reset();
+}
+
+// OFFSET: LEGO1 0x100baae0 STUB
+void MxDisplaySurface::SetPalette(MxPalette *p_palette)
+{
+
+}
+
+// OFFSET: LEGO1 0x100bc200 STUB
+void MxDisplaySurface::vtable24(undefined4, undefined4, undefined4, undefined4, undefined4, undefined4, undefined4, undefined4)
+{
+
+}
+
+// OFFSET: LEGO1 0x100bacc0 STUB
+MxBool MxDisplaySurface::vtable28(undefined4, undefined4, undefined4, undefined4, undefined4, undefined4, undefined4)
+{
+  return 0;
+}
+
+// OFFSET: LEGO1 0x100bc630 STUB
+MxBool MxDisplaySurface::vtable2c(undefined4, undefined4, undefined4, undefined4, undefined4, undefined4, undefined4, undefined4, MxBool)
+{
+  return 0;
+}
+
+// OFFSET: LEGO1 0x100bb1d0 STUB
+MxBool MxDisplaySurface::vtable30(undefined4, undefined4, undefined4, undefined4, undefined4, undefined4, undefined4, MxBool)
+{
+  return 0;
+}
+
+// OFFSET: LEGO1 0x100bb850 STUB
+undefined4 MxDisplaySurface::vtable34(undefined4, undefined4, undefined4, undefined4, undefined4, undefined4)
+{
+  return 0;
+}
+
+// OFFSET: LEGO1 0x100bba50 STUB
+void MxDisplaySurface::Display(undefined4, undefined4, undefined4, undefined4, undefined4, undefined4)
+{
+
+}
+
+// OFFSET: LEGO1 0x100bbc10
+void MxDisplaySurface::GetDC(HDC *p_hdc)
+{
+  if (this->m_ddSurface2 && !this->m_ddSurface2->GetDC(p_hdc))
+    return;
+ 
+  *p_hdc = NULL;
+}
+
+// OFFSET: LEGO1 0x100bbc40
+void MxDisplaySurface::ReleaseDC(HDC p_hdc)
+{
+  if (this->m_ddSurface2 && p_hdc)
+    this->m_ddSurface2->ReleaseDC(p_hdc);
+}
+
+// OFFSET: LEGO1 0x100bbc60 STUB
+undefined4 MxDisplaySurface::vtable44(undefined4, undefined4*, undefined4, undefined4)
+{
+  return 0;
+}
diff --git a/LEGO1/mxdisplaysurface.h b/LEGO1/mxdisplaysurface.h
index 9da02fda..aef3d5d5 100644
--- a/LEGO1/mxdisplaysurface.h
+++ b/LEGO1/mxdisplaysurface.h
@@ -10,13 +10,16 @@
 #include "decomp.h"
 
 // VTABLE 0x100dc768
+// SIZE 0xac
 class MxDisplaySurface : public MxCore
 {
 public:
   MxDisplaySurface();
   virtual ~MxDisplaySurface() override;
 
-  virtual MxResult Init(MxVideoParam *p_videoParam, LPDIRECTDRAWSURFACE p_surface1, LPDIRECTDRAWSURFACE p_surface2, LPDIRECTDRAWCLIPPER p_clipper);
+  void Reset();
+
+  virtual MxResult Init(MxVideoParam &p_videoParam, LPDIRECTDRAWSURFACE p_ddSurface1, LPDIRECTDRAWSURFACE p_ddSurface2, LPDIRECTDRAWCLIPPER p_ddClipper);
   virtual MxResult Create(MxVideoParam *p_videoParam);
   virtual void Clear();
   virtual void SetPalette(MxPalette *p_palette);
@@ -26,9 +29,18 @@ class MxDisplaySurface : public MxCore
   virtual MxBool vtable30(undefined4, undefined4, undefined4, undefined4, undefined4, undefined4, undefined4, MxBool);
   virtual undefined4 vtable34(undefined4, undefined4, undefined4, undefined4, undefined4, undefined4);
   virtual void Display(undefined4, undefined4, undefined4, undefined4, undefined4, undefined4);
-  virtual undefined4 vtable3c(undefined4*);
-  virtual undefined4 vtable40(undefined4);
+  virtual void GetDC(HDC *p_hdc);
+  virtual void ReleaseDC(HDC p_hdc);
   virtual undefined4 vtable44(undefined4, undefined4*, undefined4, undefined4);
+
+private:
+  MxVideoParam m_videoParam;
+  LPDIRECTDRAWSURFACE m_ddSurface1;
+  LPDIRECTDRAWSURFACE m_ddSurface2;
+  LPDIRECTDRAWCLIPPER m_ddClipper;
+  MxBool m_initialized;
+  DDSURFACEDESC m_surfaceDesc;
+  MxU16 *m_16bitPal;
 };
 
 #endif // MXDISPLAYSURFACE_H