instance.hpp

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#pragma once
 
#include <vulkan/vulkan.hpp>
#include <wren/math/matrix.hpp>
#include <wren/math/vector.hpp>
#include <wren/vk/buffer.hpp>
#include <wren/vk/shader.hpp>
 
#include "ui.hpp"
#include "wren/utils/device.hpp"
 
namespace wren::gui {
 
struct Vertex {
  math::Vec2f pos;
  math::Vec4f col;
};
 
class Instance {
 public:
  void paint(const Element& root);
 
  void flush(const ::vk::CommandBuffer& cmd, const vulkan::Device& device,
             VmaAllocator allocator);
 
 private:
  std::vector<Vertex> vertices_{};
  std::vector<std::int16_t> indices_{};
  std::shared_ptr<vk::Buffer> index_buffer_;
  std::shared_ptr<vk::Buffer> vertex_buffer_;
  // std::shared_ptr<vk::Buffer> uniform_buffer_;
};
 
}  // namespace wren::gui