externals: Add vma and initialize it

video_core: Move vma implementation to library

src/video_core/CMakeLists.txt

@@ -291,7 +291,7 @@ target_link_options(video_core PRIVATE ${FFmpeg_LDFLAGS})
 
 add_dependencies(video_core host_shaders)
 target_include_directories(video_core PRIVATE ${HOST_SHADERS_INCLUDE})
-target_link_libraries(video_core PRIVATE sirit Vulkan::Headers)
+target_link_libraries(video_core PRIVATE sirit Vulkan::Headers vma)
 
 if (ENABLE_NSIGHT_AFTERMATH)
     if (NOT DEFINED ENV{NSIGHT_AFTERMATH_SDK})

src/video_core/vulkan_common/vulkan_device.cpp

@@ -22,6 +22,10 @@
 #include <adrenotools/bcenabler.h>
 #endif
 
+#define VMA_STATIC_VULKAN_FUNCTIONS 0
+#define VMA_DYNAMIC_VULKAN_FUNCTIONS 1
+#include <vk_mem_alloc.h>
+
 namespace Vulkan {
 using namespace Common::Literals;
 namespace {
@@ -592,9 +596,26 @@ Device::Device(VkInstance instance_, vk::PhysicalDevice physical_, VkSurfaceKHR
 
     graphics_queue = logical.GetQueue(graphics_family);
     present_queue = logical.GetQueue(present_family);
+
+    const VmaVulkanFunctions functions = {
+        .vkGetInstanceProcAddr = dld.vkGetInstanceProcAddr,
+        .vkGetDeviceProcAddr = dld.vkGetDeviceProcAddr,
+    };
+
+    const VmaAllocatorCreateInfo allocator_info = {
+        .physicalDevice = physical,
+        .device = *logical,
+        .pVulkanFunctions = &functions,
+        .instance = instance,
+        .vulkanApiVersion = VK_API_VERSION_1_1,
+    };
+
+    vk::Check(vmaCreateAllocator(&allocator_info, &allocator));
 }
 
-Device::~Device() = default;
+Device::~Device() {
+    vmaDestroyAllocator(allocator);
+}
 
 VkFormat Device::GetSupportedFormat(VkFormat wanted_format, VkFormatFeatureFlags wanted_usage,
                                     FormatType format_type) const {

src/video_core/vulkan_common/vulkan_device.h

@@ -13,6 +13,8 @@
 #include "common/settings.h"
 #include "video_core/vulkan_common/vulkan_wrapper.h"
 
+VK_DEFINE_HANDLE(VmaAllocator)
+
 // Define all features which may be used by the implementation here.
 // Vulkan version in the macro describes the minimum version required for feature availability.
 // If the Vulkan version is lower than the required version, the named extension is required.
@@ -618,6 +620,7 @@ private:
 
 private:
     VkInstance instance;         ///< Vulkan instance.
+    VmaAllocator allocator;      ///< VMA allocator.
     vk::DeviceDispatch dld;      ///< Device function pointers.
     vk::PhysicalDevice physical; ///< Physical device.
     vk::Device logical;          ///< Logical device.