Renderer: Move depth state to VideoCommon and seperate from bpmem

Source/Core/VideoCommon/BPFunctions.cpp

@@ -68,12 +68,14 @@ void SetScissor()
 
 void SetDepthMode()
 {
-  g_renderer->SetDepthMode();
+  DepthState state = {};
+  state.Generate(bpmem);
+  g_renderer->SetDepthState(state);
 }
 
 void SetBlendMode()
 {
-  BlendingState state;
+  BlendingState state = {};
   state.Generate(bpmem);
   g_renderer->SetBlendingState(state);
 }

Source/Core/VideoCommon/RenderBase.h

@@ -67,7 +67,7 @@ public:
   virtual void SetBlendingState(const BlendingState& state) {}
   virtual void SetScissorRect(const EFBRectangle& rc) {}
   virtual void SetGenerationMode() {}
-  virtual void SetDepthMode() {}
+  virtual void SetDepthState(const DepthState& state) {}
   virtual void SetSamplerState(int stage, int texindex, bool custom_tex) {}
   virtual void SetInterlacingMode() {}
   virtual void SetViewport() {}

Source/Core/VideoCommon/RenderState.cpp

@@ -4,6 +4,13 @@
 
 #include "VideoCommon/RenderState.h"
 
+void DepthState::Generate(const BPMemory& bp)
+{
+  testenable = bp.zmode.testenable.Value();
+  updateenable = bp.zmode.updateenable.Value();
+  func = bp.zmode.func.Value();
+}
+
 // If the framebuffer format has no alpha channel, it is assumed to
 // ONE on blending. As the backends may emulate this framebuffer
 // configuration with an alpha channel, we just drop all references

Source/Core/VideoCommon/RenderState.h

@@ -9,6 +9,17 @@
 #include "VideoCommon/BPMemory.h"
 #include "VideoCommon/BPStructs.h"
 
+union DepthState
+{
+  void Generate(const BPMemory& bp);
+
+  BitField<0, 1, u32> testenable;
+  BitField<1, 1, u32> updateenable;
+  BitField<2, 3, ZMode::CompareMode> func;
+
+  u32 hex;
+};
+
 union BlendingState
 {
   void Generate(const BPMemory& bp);