sdl_blend_mode_guard.hpp

 
#pragma once
 
#include <memory>
 
#include <SDL3/SDL.h>
 
class SdlBlendModeGuard
{
  public:
  explicit SdlBlendModeGuard(const std::shared_ptr<SDL_Renderer>& renderer,
                             SDL_BlendMode mode = SDL_BLENDMODE_NONE);
  ~SdlBlendModeGuard();
 
  SdlBlendModeGuard(SdlBlendModeGuard&& other) noexcept;
  SdlBlendModeGuard(const SdlBlendModeGuard& other) = delete;
 
  SdlBlendModeGuard& operator=(const SdlBlendModeGuard& other) = delete;
  SdlBlendModeGuard& operator=(SdlBlendModeGuard&& other) = delete;
 
  bool update(SDL_BlendMode mode);
 
  private:
  SDL_BlendMode _restore_mode = SDL_BLENDMODE_INVALID;
  SDL_BlendMode _current_mode = SDL_BLENDMODE_INVALID;
  std::shared_ptr<SDL_Renderer> _renderer{};
};
class SdlBlendModeGuard {…};