render/vulkan: add Vulkan allocator

include/render/allocator/vulkan.h

@@ -0,0 +1,37 @@
+#ifndef RENDER_ALLOCATOR_VULKAN_H
+#define RENDER_ALLOCATOR_VULKAN_H
+
+#include <vulkan/vulkan.h>
+#include <wlr/types/wlr_buffer.h>
+#include <wlr/render/allocator.h>
+
+struct wlr_vulkan_buffer {
+	struct wlr_buffer base;
+	struct wlr_vulkan_allocator *alloc;
+
+	VkImage image;
+	VkDeviceMemory memory;
+
+	struct wlr_dmabuf_attributes dmabuf;
+};
+
+struct wlr_vulkan_allocator {
+	struct wlr_allocator base;
+
+	VkInstance instance;
+	VkPhysicalDevice phy_device;
+
+	size_t mods_len;
+	struct wlr_vulkan_allocator_modifier *mods;
+
+	VkDevice device;
+};
+
+struct wlr_vulkan_allocator_modifier {
+	VkDrmFormatModifierPropertiesEXT props;
+	VkExtent2D max_extent;
+};
+
+struct wlr_allocator *wlr_vulkan_allocator_create(int drm_fd);
+
+#endif