From d64b283319e29884952dac01f3900907c60e6ee2 Mon Sep 17 00:00:00 2001
From: Jayden Grubb <jaydengrubb1@gmail.com>
Date: Fri, 28 Mar 2025 18:51:46 +1000
Subject: [PATCH] Add DX12RenderDriver class stub

---
 engine/CMakeLists.txt                     |  9 +++++++++
 engine/include/nova/render/render_api.h   |  2 +-
 engine/src/drivers/dx12/render_driver.cpp | 19 +++++++++++++++++++
 engine/src/drivers/dx12/render_driver.h   | 17 +++++++++++++++++
 engine/src/render/renderer.cpp            |  8 ++++++++
 5 files changed, 54 insertions(+), 1 deletion(-)
 create mode 100644 engine/src/drivers/dx12/render_driver.cpp
 create mode 100644 engine/src/drivers/dx12/render_driver.h

diff --git a/engine/CMakeLists.txt b/engine/CMakeLists.txt
index 386574f..dcef5e3 100644
--- a/engine/CMakeLists.txt
+++ b/engine/CMakeLists.txt
@@ -3,6 +3,7 @@
 
 include(FetchContent)
 
+set(NOVA_DX12 ON CACHE BOOL "Enable DirectX 12 support")
 set(NOVA_VULKAN ON CACHE BOOL "Enable Vulkan support")
 set(NOVA_WAYLAND ON CACHE BOOL "Enable Wayland support")
 set(NOVA_X11 ON CACHE BOOL "Enable X11 support")
@@ -26,8 +27,15 @@ else ()
 		${ENGINE_SRC}
 		drivers/linux/system_driver.cpp
 	)
+	set(NOVA_DX12 OFF)
 endif ()
 
+if (NOVA_DX12)
+	set(ENGINE_SRC
+		${ENGINE_SRC}
+		drivers/dx12/render_driver.cpp
+	)
+endif ()
 if (NOVA_VULKAN)
 	find_package(Vulkan REQUIRED)
 	set(ENGINE_SRC
@@ -83,6 +91,7 @@ set(ENGINE_LIBS_PUBLIC
 	spdlog::spdlog
 )
 set(ENGINE_DEFS
+	$<$<BOOL:${NOVA_DX12}>:NOVA_DX12>
 	$<$<BOOL:${NOVA_VULKAN}>:NOVA_VULKAN>
 	$<$<BOOL:${NOVA_WAYLAND}>:NOVA_WAYLAND>
 	$<$<BOOL:${NOVA_X11}>:NOVA_X11>
diff --git a/engine/include/nova/render/render_api.h b/engine/include/nova/render/render_api.h
index d42a3d4..0daad12 100644
--- a/engine/include/nova/render/render_api.h
+++ b/engine/include/nova/render/render_api.h
@@ -7,5 +7,5 @@
 #pragma once
 
 namespace Nova {
-	enum class RenderAPI { VULKAN };
+	enum class RenderAPI { DX12, VULKAN };
 } // namespace Nova
diff --git a/engine/src/drivers/dx12/render_driver.cpp b/engine/src/drivers/dx12/render_driver.cpp
new file mode 100644
index 0000000..f243d7b
--- /dev/null
+++ b/engine/src/drivers/dx12/render_driver.cpp
@@ -0,0 +1,19 @@
+/**
+ * Copyright (c) 2025, Jayden Grubb <contact@jaydengrubb.com>
+ * 
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "drivers/dx12/render_driver.h"
+
+#include <nova/core/debug.h>
+
+using namespace Nova;
+
+DX12RenderDriver::DX12RenderDriver() {
+	NOVA_AUTO_TRACE();
+}
+
+DX12RenderDriver::~DX12RenderDriver() {
+	NOVA_AUTO_TRACE();
+}
diff --git a/engine/src/drivers/dx12/render_driver.h b/engine/src/drivers/dx12/render_driver.h
new file mode 100644
index 0000000..9ec62dc
--- /dev/null
+++ b/engine/src/drivers/dx12/render_driver.h
@@ -0,0 +1,17 @@
+/**
+ * Copyright (c) 2025, Jayden Grubb <contact@jaydengrubb.com>
+ * 
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#pragma once
+
+#include <nova/render/render_driver.h>
+
+namespace Nova {
+	class DX12RenderDriver final : public RenderDriver {
+	  public:
+		DX12RenderDriver();
+		~DX12RenderDriver() override;
+	};
+} // namespace Nova
diff --git a/engine/src/render/renderer.cpp b/engine/src/render/renderer.cpp
index 485eefe..7578b3f 100644
--- a/engine/src/render/renderer.cpp
+++ b/engine/src/render/renderer.cpp
@@ -4,6 +4,9 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
+#ifdef NOVA_DX12
+	#include "drivers/dx12/render_driver.h"
+#endif
 #ifdef NOVA_VULKAN
 	#include "drivers/vulkan/render_driver.h"
 #endif
@@ -22,6 +25,11 @@ void Renderer::init(const RenderAPI api) {
 	NOVA_ASSERT(!s_driver);
 
 	switch (api) {
+#ifdef NOVA_DX12
+		case RenderAPI::DX12:
+			s_driver = std::make_unique<DX12RenderDriver>();
+			break;
+#endif
 #ifdef NOVA_VULKAN
 		case RenderAPI::VULKAN:
 			s_driver = std::make_unique<VulkanRenderDriver>();