From 7240cbfdab493517d1faf6da055f09761ebdef00 Mon Sep 17 00:00:00 2001
From: kd-11 <karokidii@gmail.com>
Date: Sun, 15 Mar 2026 19:55:17 +0300
Subject: [PATCH] rsx/overlays: Implement arrow rendering

---
 rpcs3/Emu/RSX/Overlays/overlay_arrow.h | 47 ++++++++++++++++++++++++++
 rpcs3/Emu/RSX/Overlays/overlay_utils.h | 46 +++++++++++++++++++++++++
 rpcs3/emucore.vcxproj                  |  1 +
 rpcs3/emucore.vcxproj.filters          |  3 ++
 4 files changed, 97 insertions(+)
 create mode 100644 rpcs3/Emu/RSX/Overlays/overlay_arrow.h

diff --git a/rpcs3/Emu/RSX/Overlays/overlay_arrow.h b/rpcs3/Emu/RSX/Overlays/overlay_arrow.h
new file mode 100644
index 0000000000..596bced284
--- /dev/null
+++ b/rpcs3/Emu/RSX/Overlays/overlay_arrow.h
@@ -0,0 +1,47 @@
+#pragma once
+
+#include "overlay_controls.h"
+
+namespace rsx::overlays
+{
+	template <int Anchor, int Base, int Edge0, int Edge1>
+		requires (Anchor >= 0 && Anchor < 4 && Base >= 0 && Base < 4 && Edge0 >= 0 && Edge0 < 4 && Edge1 >= 0 && Edge1 < 4)
+	struct arrow_base : public overlay_element
+	{
+		compiled_resource& get_compiled() override
+		{
+			if (is_compiled())
+			{
+				return compiled_resources;
+			}
+
+			overlay_element::get_compiled();
+
+			m_vertex_cache.resize(3);
+			m_vertex_cache[0] = compiled_resources.draw_commands[0].verts[Anchor];
+			m_vertex_cache[1] = compiled_resources.draw_commands[0].verts[Base];
+			m_vertex_cache[2] = compiled_resources.draw_commands[0].verts[Edge0] + compiled_resources.draw_commands[0].verts[Edge1];
+			m_vertex_cache[2] /= 2;
+			compiled_resources.draw_commands[0].verts.swap(m_vertex_cache);
+			compiled_resources.draw_commands[0].config.primitives = overlays::primitive_type::triangle_strip;
+
+			m_is_compiled = true;
+			return compiled_resources;
+		}
+
+	private:
+		std::vector<vertex> m_vertex_cache;
+	};
+
+	struct arrow_up : public arrow_base<2, 3, 0, 1>
+	{};
+
+	struct arrow_down : public arrow_base<0, 1, 2, 3>
+	{};
+
+	struct arrow_left : public arrow_base<1, 2, 3, 0>
+	{};
+
+	struct arrow_right : public arrow_base<3, 0, 1, 2>
+	{};
+}
diff --git a/rpcs3/Emu/RSX/Overlays/overlay_utils.h b/rpcs3/Emu/RSX/Overlays/overlay_utils.h
index cab0e1a598..aaa70f09a3 100644
--- a/rpcs3/Emu/RSX/Overlays/overlay_utils.h
+++ b/rpcs3/Emu/RSX/Overlays/overlay_utils.h
@@ -95,6 +95,52 @@ struct vertex
 		values[2] -= other.values[2];
 		values[3] -= other.values[3];
 	}
+
+	void operator /= (const vertex& other)
+	{
+		values[0] /= other.values[0];
+		values[1] /= other.values[1];
+		values[2] /= other.values[2];
+		values[3] /= other.values[3];
+	}
+
+	void operator /= (float rhs)
+	{
+		values[0] /= rhs;
+		values[1] /= rhs;
+		values[2] /= rhs;
+		values[3] /= rhs;
+	}
+
+	void operator *= (const vertex& other)
+	{
+		values[0] *= other.values[0];
+		values[1] *= other.values[1];
+		values[2] *= other.values[2];
+		values[3] *= other.values[3];
+	}
+
+	void operator *= (float rhs)
+	{
+		values[0] *= rhs;
+		values[1] *= rhs;
+		values[2] *= rhs;
+		values[3] *= rhs;
+	}
+
+	vertex operator + (const vertex& other) const
+	{
+		vertex result = *this;
+		result += other;
+		return result;
+	}
+
+	vertex operator - (const vertex& other) const
+	{
+		vertex result = *this;
+		result -= other;
+		return result;
+	}
 };
 
 
diff --git a/rpcs3/emucore.vcxproj b/rpcs3/emucore.vcxproj
index 5834917530..7253171856 100644
--- a/rpcs3/emucore.vcxproj
+++ b/rpcs3/emucore.vcxproj
@@ -711,6 +711,7 @@
     <ClInclude Include="Emu\RSX\Overlays\Network\overlay_recvmessage_dialog.h" />
     <ClInclude Include="Emu\RSX\Overlays\Network\overlay_sendmessage_dialog.h" />
     <ClInclude Include="Emu\RSX\Overlays\overlay_animated_icon.h" />
+    <ClInclude Include="Emu\RSX\Overlays\overlay_arrow.h" />
     <ClInclude Include="Emu\RSX\Overlays\overlay_audio.h" />
     <ClInclude Include="Emu\RSX\Overlays\overlay_checkbox.h" />
     <ClInclude Include="Emu\RSX\Overlays\overlay_cursor.h" />
diff --git a/rpcs3/emucore.vcxproj.filters b/rpcs3/emucore.vcxproj.filters
index 952607794f..a5a5825f44 100644
--- a/rpcs3/emucore.vcxproj.filters
+++ b/rpcs3/emucore.vcxproj.filters
@@ -2869,6 +2869,9 @@
     <ClInclude Include="Emu\RSX\Overlays\overlay_select.h">
       <Filter>Emu\GPU\RSX\Overlays</Filter>
     </ClInclude>
+    <ClInclude Include="Emu\RSX\Overlays\overlay_arrow.h">
+      <Filter>Emu\GPU\RSX\Overlays</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="Emu\RSX\Program\GLSLSnippets\GPUDeswizzle.glsl">