Abstraction Patterns for Cross Platform Development Using C++
Talkat CppCon 2023 · on Friday, 2023-10-06· at 10:30· Cottonwood 2/3, 6700 North Gaylord Rockies Boulevard·
summary
Compares concrete abstraction techniques and shows working examples: uses Vulkan vs DirectX12 backends, demonstrates preprocessor macros, runtime polymorphism, and a pimpl + handles approach, then solves ODR by selecting per-platform CPPs with a metabuild system (Cake/CMake style) and finally packages implementations as shared libraries loaded from a JSON config. Claims macros are fragile, virtual calls cost a vtable lookup, pimpl avoids header leaks but breaks ODR, and the demo successfully launches windows for DX12 or Vulkan by loading the chosen DLL at runtime.
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chapters (10)
- 0:00Introduction and background
- 4:03Overview of topics
- 6:24Defining cross-platform
- 9:29Why use abstraction layers
- 12:07Preprocessor macros
- 19:45Runtime polymorphism
- 29:35Pimpl and handles
- 40:27Meta-build systems
- 47:13Runtime implementation swapping
- 58:00Tips, tricks, and conclusion
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