query_pool.hpp

// SPDX-License-Identifier: MIT
#ifndef LIBSBX_GRAPHICS_DEVICES_QUERY_POOL_HPP_
#define LIBSBX_GRAPHICS_DEVICES_QUERY_POOL_HPP_
 
#include <vulkan/vulkan.h>
 
#include <libsbx/units/time.hpp>
 
#include <libsbx/graphics/commands/command_buffer.hpp>
#include <libsbx/graphics/devices/logical_device.hpp>
 
namespace sbx::graphics {
 
class query_pool {
 
public:
 
  using handle_type = VkQueryPool;
 
  query_pool(const logical_device& logical_device, const VkQueryType type, const std::uint32_t query_count);
 
  query_pool(const query_pool&) = delete;
 
  ~query_pool();
 
  auto operator=(const query_pool&) -> query_pool& = delete;
 
  auto handle() const -> handle_type;
 
  operator handle_type() const;
 
  auto reset(command_buffer& command_buffer, std::uint32_t first_query = 0u, std::uint32_t count = 0u) const -> void;
 
  auto write_timestamp(command_buffer& command_buffer, const VkPipelineStageFlagBits stage, const std::uint32_t query_index) const -> void;
 
  auto get_duration(const std::uint32_t begin, const std::uint32_t end) const -> units::millisecond;
 
private:
 
  handle_type _handle;
  VkQueryType _type;
  std::uint32_t _query_count;
 
}; // class query_pool
 
} // namespace sbx::graphics
 
#endif // LIBSBX_GRAPHICS_DEVICES_QUERY_POOL_HPP_