Cross-platform Vulkan

[brenocq]

Cross-Platform Vulkan

This PR significantly enhances Atta's graphics module by enabling seamless Vulkan support across Linux, MacOS, Windows, and Web. It addresses the limitations of relying on the Vulkan SDK and glslc being pre-installed on the user's system.

🔍 Key Changes

1. Dynamic Vulkan Loading with Volk:

   • Integrated the Volk library for dynamic loading of Vulkan functions at runtime.
   • Eliminates the dependency on a specific Vulkan SDK version being present on the user's machine.
   • Ensures that Atta can utilize the Vulkan API available on the system without requiring pre-compilation against a particular SDK.

2. Static Linking of ShaderC:

   • Enables Atta to compile shaders to Vulkan SPIR-V directly within the engine, simplifying the build process and user experience.
   • Statically linked the ShaderC library into Atta.
   • Removes the requirement for glslc to be installed on the user's system.

3. Conditional Compilation and Linking:

   • On platforms without Vulkan support (MacOS and Web), Vulkan dependencies (Volk, ShaderC) are not linked, and Vulkan-specific code within Atta's graphics module is excluded from compilation.
   • Reduces the final build size and avoids unnecessary dependencies on these platforms.

🔧 Changelog

• Feat
  • Dynamic loading of Vulkan with Volk
  • Migrated shader compilation to use Shaderc
  • Disabled Vulkan build on MacOS and Web builds
  • Added --disable-vulkan flag to build script
  • Added support CMake option ATTA_VULKAN_SUPPORT to allow disabling Vulkan when building
  • Fallback to OpenGL if there is no GPU with Vulkan support
• Refactor
  • Updated solveImgui.cmake to build Vulkan backend with Volk
  • Removed Vulkan-related code from Glad 2
• Style
  • Fixed typo in CMakeLists.txt from "Releaese" to "Release"
• Chore
  • Added solveShaderc.cmake and solveVolk.cmake for external dependencies