separate_sampler_array.hpp

// SPDX-License-Identifier: MIT
#ifndef LIBSBX_GRAPHICS_SAMPLERS_SAMPLER_STATE_ARRAY_HPP_
#define LIBSBX_GRAPHICS_SAMPLERS_SAMPLER_STATE_ARRAY_HPP_
 
#include <vector>
#include <unordered_map>
 
#include <libsbx/graphics/descriptor/descriptor.hpp>
#include <libsbx/graphics/images/sampler_state.hpp>
 
namespace sbx::graphics {
 
class separate_sampler_array : public descriptor {
 
public:
 
  inline static constexpr auto max_size = std::uint32_t{16u};
 
  using handle_type = sampler_state_handle;
 
  separate_sampler_array();
 
  ~separate_sampler_array();
 
  static auto create_descriptor_set_layout_binding(std::uint32_t binding, VkDescriptorType descriptor_type, VkShaderStageFlags shader_stage_flags) noexcept -> VkDescriptorSetLayoutBinding;
 
  auto write_descriptor_set(std::uint32_t binding, VkDescriptorType descriptor_type) const noexcept -> graphics::write_descriptor_set override;
 
  auto push_back(const handle_type& handle) -> std::uint32_t;
 
  auto clear() -> void;
 
private:
 
  std::vector<handle_type> _sampler_ids;
  std::unordered_map<handle_type, std::uint32_t> _id_to_indices;
 
}; // class separate_sampler_array
 
} // namespace sbx::graphics
 
#endif // LIBSBX_GRAPHICS_SAMPLERS_SAMPLER_STATE_ARRAY_HPP_