From ae908a74cc58c35d2fa2fa191edda4ee089f7db6 Mon Sep 17 00:00:00 2001
From: MS <disinvite@users.noreply.github.com>
Date: Sat, 21 Oct 2023 19:47:48 -0400
Subject: [PATCH] Copy constructor for MxVideoPresenter::AlphaMask (#229)

---
 LEGO1/mxvideopresenter.cpp | 14 +++++++++++++-
 LEGO1/mxvideopresenter.h   |  3 ++-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/LEGO1/mxvideopresenter.cpp b/LEGO1/mxvideopresenter.cpp
index 5abef00d..f48a0f8b 100644
--- a/LEGO1/mxvideopresenter.cpp
+++ b/LEGO1/mxvideopresenter.cpp
@@ -67,7 +67,7 @@ MxS32 MxVideoPresenter::GetHeight()
 }
 
 // OFFSET: LEGO1 0x100b24f0
-MxVideoPresenter::AlphaMask::AlphaMask(MxBitmap &p_bitmap)
+MxVideoPresenter::AlphaMask::AlphaMask(const MxBitmap &p_bitmap)
 {
   m_width  = p_bitmap.GetBmiWidth();
   // DECOMP: ECX becomes word-sized if these are not two separate actions.
@@ -147,6 +147,18 @@ MxVideoPresenter::AlphaMask::AlphaMask(MxBitmap &p_bitmap)
   }
 }
 
+// OFFSET: LEGO1 0x100b2670
+MxVideoPresenter::AlphaMask::AlphaMask(const MxVideoPresenter::AlphaMask &p_alpha)
+{
+  m_width  = p_alpha.m_width;
+  m_height = p_alpha.m_height;
+
+  MxS32 size = ((m_width * m_height) / 8) + 1;
+  m_bitmask = new MxU8[size];
+  memcpy(m_bitmask, p_alpha.m_bitmask, size);
+}
+
+
 // OFFSET: LEGO1 0x100b26d0
 MxVideoPresenter::AlphaMask::~AlphaMask()
 {
diff --git a/LEGO1/mxvideopresenter.h b/LEGO1/mxvideopresenter.h
index 4f66075c..61a1027c 100644
--- a/LEGO1/mxvideopresenter.h
+++ b/LEGO1/mxvideopresenter.h
@@ -55,7 +55,8 @@ class MxVideoPresenter : public MxMediaPresenter
     MxU16 m_width;
     MxU16 m_height;
 
-    AlphaMask(MxBitmap &);
+    AlphaMask(const MxBitmap &);
+    AlphaMask(const AlphaMask &);
     virtual ~AlphaMask();
   };