From 6271f5ce797bf12be64c710b66b1b9e93a239829 Mon Sep 17 00:00:00 2001
From: Chuyan Zhang <chuyan@ucsb.edu>
Date: Thu, 10 Oct 2024 18:51:05 -0700
Subject: move to new resource abstraction

---
 include/resources/image.h | 71 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 include/resources/image.h

(limited to 'include/resources/image.h')

diff --git a/include/resources/image.h b/include/resources/image.h
new file mode 100644
index 0000000..391c023
--- /dev/null
+++ b/include/resources/image.h
@@ -0,0 +1,71 @@
+#pragma once
+
+#include <unordered_map>
+#include <vk_mem_alloc.h>
+#include <vulkan/vulkan_core.h>
+namespace iris {
+
+enum struct ImageType {
+    Texture1D,
+    Texture1DArray,
+    Texture2D,
+    Texture2DArray,
+    Texture3D,
+    TextureCube,
+    TextureCubeArray,
+};
+
+struct ImageDesc {
+    ImageType image_type;
+    VkImageUsageFlags image_usage;
+    VkImageCreateFlags create_flags;
+    VmaAllocationCreateFlags alloc_flags;
+
+    VkFormat format;
+    VkExtent3D extent;
+    uint32_t mip_levels;
+    uint32_t array_layers;
+};
+
+struct ImageViewDesc {
+    VkImageViewType view_type;
+    VkFormat format;
+    VkImageAspectFlags aspect_mask;
+    uint32_t base_mip_level;
+    uint32_t mip_levels;
+    uint32_t base_array_layer;
+    uint32_t array_layers;
+
+    bool operator==(const ImageViewDesc& other) const = default;
+};
+
+struct ImageViewDescHash {
+    std::size_t operator()(const ImageViewDesc& desc) const noexcept {
+        auto h = std::hash<int>{}(desc.view_type);
+        h ^= std::hash<int>{}(desc.format) + 0x9e3779b9 + (h << 6) + (h >> 2);
+        h ^= std::hash<int>{}(desc.aspect_mask) + 0x9e3779b9 + (h << 6) + (h >> 2);
+        h ^= std::hash<int>{}(desc.base_mip_level) + 0x9e3779b9 + (h << 6) + (h >> 2);
+        h ^= std::hash<int>{}(desc.mip_levels) + 0x9e3779b9 + (h << 6) + (h >> 2);
+        h ^= std::hash<int>{}(desc.base_array_layer) + 0x9e3779b9 + (h << 6) + (h >> 2);
+        h ^= std::hash<int>{}(desc.array_layers) + 0x9e3779b9 + (h << 6) + (h >> 2);
+        return h;
+    }
+};
+
+struct Image_tt {
+    VkImage handle;
+    ImageDesc desc;
+
+    // Used during release
+    VkDevice device;
+    VmaAllocator allocator;
+    VmaAllocation allocation;
+
+    // store all the image views
+    std::unordered_map<ImageViewDesc, VkImageView, ImageViewDescHash> image_views;
+    VkImageView get_image_view(const ImageViewDesc &desc);
+
+    void release();
+};
+
+} // namespace iris
\ No newline at end of file
-- 
cgit v1.2.3-70-g09d2