WIP new rendering api

1 files changed, 83 insertions, 0 deletions

diff --git a/include/texture.hpp b/include/texture.hpp
new file mode 100644
index 0000000..aac7b69
--- /dev/null
+++ b/include/texture.hpp
@@ -0,0 +1,83 @@
+#include <cstdint>
+
+using VkImage = struct VkImage_T*;
+
+struct TextureDesc {
+    VkImageType type;
+    VkFormat format;
+    VkExtent size;
+    VkImageUsageFlags usages;
+};
+
+class Texture {
+  public:
+    Texture(const TextureDesc desc)
+            : description(desc) {
+        create_device_image();
+    }
+
+    // Texture(handle image_handle) {
+    //     const auto& image = vkrenderer::api.get_image(image_handle);
+    //     width = image.size.width;
+    //     height = image.size.height;
+    //     depth = image.size.depth;
+
+    // device_image = image_handle;
+    // }
+
+    // Texture(size_t width, size_t height, size_t depth, VkFormat format = VK_FORMAT_R8G8B8A8_UNORM, Sampler* texture_sampler = nullptr)
+    //         : width(width), height(height), depth(depth) {
+    //     sampler = texture_sampler;
+    //     device_image = vkrenderer::api.create_image(
+    //         { .width = (uint32_t)width, .height = (uint32_t)height, .depth = 1 },
+    //         format,
+    //         VK_IMAGE_USAGE_STORAGE_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_SAMPLED_BIT);
+    // }
+
+    void update(void* new_data) {
+        if (data == nullptr) {
+            free(data);
+        }
+        data = new_data;
+
+        vkrenderer::queue_image_update(this);
+    }
+
+    ~Texture() {
+        vkrenderer::api.destroy_image(device_image);
+
+        if (data == nullptr) {
+            free(data);
+        }
+    }
+
+    [[nodiscard]] size_t size() const {
+        const auto& image = vkrenderer::api.get_image(device_image);
+        return width * height * depth * pixel_size(image.format);
+    }
+
+    static size_t pixel_size(VkFormat format) {
+        switch (format) {
+        case VK_FORMAT_R8G8B8A8_UNORM:
+            return 4;
+        default:
+            return 0;
+        }
+    }
+
+    // Sampler* sampler = nullptr;
+
+  private:
+    void create_device_image();
+
+    void* data = nullptr;
+
+    size_t width = 0;
+    size_t height = 0;
+    size_t depth = 0;
+
+    TextureDesc description;
+
+    VmaAllocationInfo alloc_info;
+    VkImage device_image;
+};