From 9e1019b1cf82d554c26a8187075f91e19800cf7d Mon Sep 17 00:00:00 2001
From: kd-11 <karokidii@gmail.com>
Date: Tue, 23 Apr 2024 01:12:34 +0300
Subject: [PATCH] rsx: Start splitting off some stuff into the graph backend
 class

---
 rpcs3/Emu/RSX/NV47/FW/GRAPH_backend.h | 21 +++++++++++++++++++++
 rpcs3/Emu/RSX/RSXThread.h             |  4 +++-
 rpcs3/Emu/RSX/VK/VKGSRender.cpp       |  5 +++++
 rpcs3/Emu/RSX/VK/VKGSRender.h         |  3 +++
 rpcs3/emucore.vcxproj                 |  1 +
 rpcs3/emucore.vcxproj.filters         |  3 +++
 6 files changed, 36 insertions(+), 1 deletion(-)
 create mode 100644 rpcs3/Emu/RSX/NV47/FW/GRAPH_backend.h

diff --git a/rpcs3/Emu/RSX/NV47/FW/GRAPH_backend.h b/rpcs3/Emu/RSX/NV47/FW/GRAPH_backend.h
new file mode 100644
index 0000000000..aa50e3eb0e
--- /dev/null
+++ b/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) {};
+	};
+}
diff --git a/rpcs3/Emu/RSX/RSXThread.h b/rpcs3/Emu/RSX/RSXThread.h
index bb8784734a..a64c92356b 100644
--- a/rpcs3/Emu/RSX/RSXThread.h
+++ b/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;
diff --git a/rpcs3/Emu/RSX/VK/VKGSRender.cpp b/rpcs3/Emu/RSX/VK/VKGSRender.cpp
index b4737f2a02..4a7b970766 100644
--- a/rpcs3/Emu/RSX/VK/VKGSRender.cpp
+++ b/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);
diff --git a/rpcs3/Emu/RSX/VK/VKGSRender.h b/rpcs3/Emu/RSX/VK/VKGSRender.h
index f2af5468bf..f1d222f227 100644
--- a/rpcs3/Emu/RSX/VK/VKGSRender.h
+++ b/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;
diff --git a/rpcs3/emucore.vcxproj b/rpcs3/emucore.vcxproj
index c9fa56775b..b404f1e546 100644
--- a/rpcs3/emucore.vcxproj
+++ b/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" />
diff --git a/rpcs3/emucore.vcxproj.filters b/rpcs3/emucore.vcxproj.filters
index 4850053e9f..5fe6e86034 100644
--- a/rpcs3/emucore.vcxproj.filters
+++ b/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">