Core: add ability to add memory patches to the patch engine that will be executed each frame

2 files changed, 31 insertions, 0 deletions

diff --git a/Source/Core/Common/Debug/MemoryPatches.cpp b/Source/Core/Common/Debug/MemoryPatches.cpp
index 8dd9b5716d..f48e6e5bb5 100644
--- a/Source/Core/Common/Debug/MemoryPatches.cpp
+++ b/Source/Core/Common/Debug/MemoryPatches.cpp
@@ -38,6 +38,23 @@ void MemoryPatches::SetPatch(u32 address, std::vector<u8> value)
   Patch(index);
 }
 
+void MemoryPatches::SetFramePatch(u32 address, u32 value)
+{
+  const std::size_t index = m_patches.size();
+  m_patches.emplace_back(address, value);
+  m_patches.back().type = MemoryPatch::ApplyType::EachFrame;
+  Patch(index);
+}
+
+void MemoryPatches::SetFramePatch(u32 address, std::vector<u8> value)
+{
+  UnsetPatch(address);
+  const std::size_t index = m_patches.size();
+  m_patches.emplace_back(address, std::move(value));
+  m_patches.back().type = MemoryPatch::ApplyType::EachFrame;
+  Patch(index);
+}
+
 const std::vector<MemoryPatch>& MemoryPatches::GetPatches() const
 {
   return m_patches;
@@ -81,6 +98,7 @@ bool MemoryPatches::HasEnabledPatch(u32 address) const
 void MemoryPatches::RemovePatch(std::size_t index)
 {
   DisablePatch(index);
+  UnPatch(index);
   m_patches.erase(m_patches.begin() + index);
 }
 
@@ -88,7 +106,10 @@ void MemoryPatches::ClearPatches()
 {
   const std::size_t size = m_patches.size();
   for (std::size_t index = 0; index < size; ++index)
+  {
     DisablePatch(index);
+    UnPatch(index);
+  }
   m_patches.clear();
 }
 }  // namespace Common::Debug
diff --git a/Source/Core/Common/Debug/MemoryPatches.h b/Source/Core/Common/Debug/MemoryPatches.h
index 634382f3b3..2a4f902dcd 100644
--- a/Source/Core/Common/Debug/MemoryPatches.h
+++ b/Source/Core/Common/Debug/MemoryPatches.h
@@ -19,12 +19,19 @@ struct MemoryPatch
     Disabled
   };
 
+  enum class ApplyType
+  {
+    Once,
+    EachFrame
+  };
+
   MemoryPatch(u32 address_, std::vector<u8> value_);
   MemoryPatch(u32 address_, u32 value_);
 
   u32 address;
   std::vector<u8> value;
   State is_enabled = State::Enabled;
+  ApplyType type = ApplyType::Once;
 };
 
 class MemoryPatches
@@ -35,6 +42,8 @@ public:
 
   void SetPatch(u32 address, u32 value);
   void SetPatch(u32 address, std::vector<u8> value);
+  void SetFramePatch(u32 address, u32 value);
+  void SetFramePatch(u32 address, std::vector<u8> value);
   const std::vector<MemoryPatch>& GetPatches() const;
   void UnsetPatch(u32 address);
   void EnablePatch(std::size_t index);
@@ -46,6 +55,7 @@ public:
 
 protected:
   virtual void Patch(std::size_t index) = 0;
+  virtual void UnPatch(std::size_t index) = 0;
 
   std::vector<MemoryPatch> m_patches;
 };