Add direct Wayland WSI (no decorations though)

README.md

@@ -56,8 +56,9 @@ Requirements
 **Build Environment[GLFW]**: GLFW 3.2+ (already included as a git submodule), requires `xorg-dev` package on Linux 
 **Build environment[Xlib]**: Requires `xorg-dev` package 
 **Build environment[XCB]**: Requires `libxcb1-dev`, `libxcb-util-dev`, `libxcb-keysyms1-dev`, and `x11proto-dev` packages 
+**Build environment[Wayland]**: Requires `libwayland-dev` and `libxkbcommon-dev` packages 
 **Target Environment**: installed (latest) Vulkan capable drivers (to see anything) 
-**Target Environment**: GLFW(recommended), XCB or Xlib based windowing system
+**Target Environment**: GLFW(recommended), XCB, Xlib, or Wayland based windowing system
 
 On Unix-like environment refer to [SDK docs](https://vulkan.lunarg.com/doc/sdk/latest/linux/getting_started.html) on how to set `VULKAN_SDK` variable.
 

src/ErrorHandling.h

@@ -25,6 +25,8 @@ struct VulkanResultException{
 #define RESULT_HANDLER( errorCode, source ) if( errorCode ) throw VulkanResultException( __FILE__, __LINE__, __func__, source, errorCode )
 #define RESULT_HANDLER_EX( cond, errorCode, source ) if( cond ) throw VulkanResultException( __FILE__, __LINE__, __func__, source, errorCode )
 
+#define RUNTIME_ASSERT( cond, source ) if( !(cond) ) throw source " failed";
+
 // just use cout for logging now
 std::ostream& logger = std::cout;
 

src/HelloTriangle.cpp

@@ -375,10 +375,12 @@ int helloTriangle() try{
  TODO( "This may be triggered from many sources (e.g. WM_SIZE event, and VK_ERROR_OUT_OF_DATE_KHR too). Should prevent duplicate swapchain recreation." )
 
  VkSurfaceCapabilitiesKHR capabilities = getSurfaceCapabilities( physicalDevice, surface );
- VkExtent2D surfaceSize = {
- capabilities.currentExtent.width == UINT32_MAX ? ::initialWindowWidth : capabilities.currentExtent.width,
- capabilities.currentExtent.height == UINT32_MAX ? ::initialWindowHeight : capabilities.currentExtent.height,
- };
+
+ if( capabilities.currentExtent.width == UINT32_MAX && capabilities.currentExtent.height == UINT32_MAX ){
+ capabilities.currentExtent.width = getWindowWidth( window );
+ capabilities.currentExtent.height = getWindowHeight( window );
+ }
+ VkExtent2D surfaceSize = { capabilities.currentExtent.width, capabilities.currentExtent.height };
 
  const bool swapchainCreatable = {
  surfaceSize.width >= capabilities.minImageExtent.width

src/VulkanEnvironment.h

@@ -65,6 +65,7 @@
  #define USE_PLATFORM_GLFW
  //#define VK_USE_PLATFORM_XCB_KHR
  //#define VK_USE_PLATFORM_XLIB_KHR
+ //#define VK_USE_PLATFORM_WAYLAND_KHR
  #endif
 #else
  //#error "Unsupported OS platform." // caught in main.cpp instead

src/WSI/Glfw.h

@@ -191,6 +191,7 @@ void toggleFullscreen( GLFWwindow* window ){
  }
 }
 
+TODO( "Fullscreen window seem to become unresponsive in Wayland session Ubuntu" )
 void keyCallback( GLFWwindow* window, int key, int /*scancode*/, int action, int mods ) noexcept{
  if( key == GLFW_KEY_ESCAPE && action == GLFW_PRESS ) glfwSetWindowShouldClose( window, GLFW_TRUE );