renderer_vulkan: Include Vulkan memory allocator

CMakeLists.txt

@@ -199,6 +199,11 @@ if (ENABLE_QT)
     endif()
 endif()
 
+if (ENABLE_VULKAN)
+    # Vulkan Memory Allocator
+    set(VMA_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/externals/vma/include)
+endif()
+
 # Ensure libusb is properly configured (based on dolphin libusb include)
 if(NOT APPLE)
     include(FindPkgConfig)

src/video_core/CMakeLists.txt

@@ -79,6 +79,8 @@ add_library(video_core STATIC
     renderer_vulkan/vk_format_reinterpreter.h
     renderer_vulkan/vk_instance.cpp
     renderer_vulkan/vk_instance.h
+    renderer_vulkan/vk_memory.cpp
+    renderer_vulkan/vk_memory.h
     renderer_vulkan/vk_pipeline_builder.cpp
     renderer_vulkan/vk_pipeline_builder.h
     renderer_vulkan/vk_rasterizer_cache.cpp
@@ -180,6 +182,6 @@ if (ARCHITECTURE_x86_64)
 endif()
 
 if (ENABLE_VULKAN)
-    target_include_directories(video_core PRIVATE ${Vulkan_INCLUDE_DIRS})
+    target_include_directories(video_core PRIVATE ${Vulkan_INCLUDE_DIRS} ${VMA_INCLUDE_DIR})
     target_link_libraries(video_core PRIVATE ${Vulkan_LIBRARIES} ${SHADERC_DEP})
 endif()

src/video_core/renderer_vulkan/vk_memory.cpp

@@ -0,0 +1,6 @@
+// Copyright 2022 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#define VMA_IMPLEMENTATION
+#include "vk_memory.h"

src/video_core/renderer_vulkan/vk_memory.h

@@ -0,0 +1,19 @@
+// Copyright 2022 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <vulkan/vulkan.h>
+
+#ifndef VMA_STATIC_VULKAN_FUNCTIONS
+#define VMA_STATIC_VULKAN_FUNCTIONS 0
+#endif
+
+#ifndef VMA_DYNAMIC_VULKAN_FUNCTIONS
+#define VMA_DYNAMIC_VULKAN_FUNCTIONS 1
+#endif
+
+// Include Vulkan memory allocator
+#define VMA_VULKAN_VERSION 1001000 // Vulkan 1.1
+#include "vk_mem_alloc.h"