rsx: Start splitting off some stuff into the graph backend class

rpcs3/Emu/RSX/NV47/FW/GRAPH_backend.h

@@ -0,0 +1,21 @@
+#pragma once
+
+#include "../HW/context.h"
+
+#include <span>
+
+namespace rsx
+{
+	// GRAPH backend class. Wraps RSX acceleration capabilities for the host.
+	// TODO: Flesh this out.
+	// TODO: Replace the virtuals with something faster
+	class GRAPH_backend
+	{
+	public:
+		// virtual void begin() = 0;
+		// virtual void end() = 0;
+
+		// Patch transform constants
+		virtual void patch_transform_constants(context* ctx, u32 first_index, const std::span<u32>& data) {};
+	};
+}

rpcs3/Emu/RSX/RSXThread.h

@@ -33,6 +33,8 @@
 #include "Core/RSXIOMap.hpp"
 #include "Core/RSXVertexTypes.h"
 
+#include "NV47/FW/GRAPH_backend.h"
+
 extern atomic_t<bool> g_user_asked_for_frame_capture;
 extern atomic_t<bool> g_disable_frame_limit;
 extern rsx::frame_trace_data frame_debug;
@@ -150,7 +152,7 @@ namespace rsx
 	};
 
 	// TODO: This class is a mess, this needs to be broken into smaller chunks, like I did for RSXFIFO and RSXZCULL (kd)
-	class thread : public cpu_thread, public GCM_context
+	class thread : public cpu_thread, public GCM_context, public GRAPH_backend
 	{
 		u64 timestamp_ctrl = 0;
 		u64 timestamp_subvalue = 0;

rpcs3/Emu/RSX/VK/VKGSRender.cpp

@@ -2354,6 +2354,11 @@ void VKGSRender::update_vertex_env(u32 id, const vk::vertex_upload_info& vertex_
 	m_vertex_layout_ring_info.unmap();
 }
 
+void VKGSRender::patch_transform_constants(rsx::context* ctx, u32 first_index, const std::span<u32>& data)
+{
+
+}
+
 void VKGSRender::init_buffers(rsx::framebuffer_creation_context context, bool)
 {
 	prepare_rtts(context);

rpcs3/Emu/RSX/VK/VKGSRender.h

@@ -276,6 +276,9 @@ public:
 	// Host sync object
 	inline std::pair<volatile vk::host_data_t*, VkBuffer> map_host_object_data() { return { m_host_data_ptr, m_host_object_data->value }; }
 
+	// GRAPH backend
+	void patch_transform_constants(rsx::context* ctx, u32 first_index, const std::span<u32>& data) override;
+
 protected:
 	void clear_surface(u32 mask) override;
 	void begin() override;

rpcs3/emucore.vcxproj

@@ -598,6 +598,7 @@
     <ClInclude Include="Emu\RSX\Core\RSXVertexTypes.h" />
     <ClInclude Include="Emu\RSX\NV47\FW\draw_call.hpp" />
     <ClInclude Include="Emu\RSX\NV47\FW\draw_call.inc.h" />
+    <ClInclude Include="Emu\RSX\NV47\FW\GRAPH_backend.h" />
     <ClInclude Include="Emu\RSX\NV47\FW\reg_context.h" />
     <ClInclude Include="Emu\RSX\NV47\HW\context.h" />
     <ClInclude Include="Emu\RSX\NV47\HW\context_accessors.define.h" />

rpcs3/emucore.vcxproj.filters

@@ -2536,6 +2536,9 @@
     <ClInclude Include="Emu\savestate_utils.hpp">
       <Filter>Emu</Filter>
     </ClInclude>
+    <ClInclude Include="Emu\RSX\NV47\FW\GRAPH_backend.h">
+      <Filter>Emu\GPU\RSX\NV47\FW</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="Emu\RSX\Program\GLSLSnippets\GPUDeswizzle.glsl">