Check for Wayland headers in CMake

CMakeLists.txt

@@ -87,12 +87,6 @@ else()
 	message("Normal Build")
 endif()
 
-if(UNIX AND NOT APPLE AND VULKAN)
-	add_definitions(-DVK_USE_PLATFORM_XLIB_KHR)
-	add_definitions(-DVK_USE_PLATFORM_WAYLAND_KHR)
-	# add_definitions(-DVK_USE_PLATFORM_XCB_KHR)
-endif()
-
 # Doesn't link on some platforms
 #if(NOT DEFINED UNITTEST)
 #	set(UNITTEST OFF)
@@ -119,10 +113,20 @@ option(SIMULATOR "Set to ON when targeting an x86 simulator of an ARM platform"
 # :: Options
 option(USE_FFMPEG "Build with FFMPEG support" ${USE_FFMPEG})
 option(USE_SYSTEM_FFMPEG "Dynamically link against system FFMPEG" ${USE_SYSTEM_FFMPEG})
+option(USE_WAYLAND_WSI "Set to ON to require Wayland support for Vulkan" ${USE_WAYLAND_WSI})
 
-# Vulkan on Linux options. If none of these are set, X11 is assumed.
+if(UNIX AND NOT APPLE AND VULKAN)
-OPTION(USE_D2D_WSI "Build the project using Direct to Display swapchain" OFF)
+	add_definitions(-DVK_USE_PLATFORM_XLIB_KHR)
-OPTION(USE_WAYLAND_WSI "Build the project using Wayland swapchain" OFF)
+	# add_definitions(-DVK_USE_PLATFORM_XCB_KHR)
+	find_package(Wayland)
+	if (USE_WAYLAND_WSI AND NOT WAYLAND_FOUND)
+		message(FATAL_ERROR "Could not find libwayland, but USE_WAYLAND_WSI was enabled. Failing.")
+	endif()
+	if (WAYLAND_FOUND)
+		include_directories(${WAYLAND_INCLUDE_DIR})
+		add_definitions(-DVK_USE_PLATFORM_WAYLAND_KHR)
+	endif()
+endif()
 
 if(ANDROID)
 	set(CoreLibName ppsspp_jni)

cmake/Modules/FindWayland.cmake

@@ -0,0 +1,66 @@
+# Try to find Wayland on a Unix system
+#
+# This will define:
+#
+#   WAYLAND_FOUND       - True if Wayland is found
+#   WAYLAND_LIBRARIES   - Link these to use Wayland
+#   WAYLAND_INCLUDE_DIR - Include directory for Wayland
+#   WAYLAND_DEFINITIONS - Compiler flags for using Wayland
+#
+# In addition the following more fine grained variables will be defined:
+#
+#   WAYLAND_CLIENT_FOUND  WAYLAND_CLIENT_INCLUDE_DIR  WAYLAND_CLIENT_LIBRARIES
+#   WAYLAND_SERVER_FOUND  WAYLAND_SERVER_INCLUDE_DIR  WAYLAND_SERVER_LIBRARIES
+#   WAYLAND_EGL_FOUND     WAYLAND_EGL_INCLUDE_DIR     WAYLAND_EGL_LIBRARIES
+#
+# Copyright (c) 2013 Martin Gräßlin <mgraesslin@kde.org>
+#
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+IF (NOT WIN32)
+  IF (WAYLAND_INCLUDE_DIR AND WAYLAND_LIBRARIES)
+    # In the cache already
+    SET(WAYLAND_FIND_QUIETLY TRUE)
+  ENDIF ()
+
+  # Use pkg-config to get the directories and then use these values
+  # in the FIND_PATH() and FIND_LIBRARY() calls
+  FIND_PACKAGE(PkgConfig)
+  PKG_CHECK_MODULES(PKG_WAYLAND QUIET wayland-client wayland-server wayland-egl wayland-cursor)
+
+  SET(WAYLAND_DEFINITIONS ${PKG_WAYLAND_CFLAGS})
+
+  FIND_PATH(WAYLAND_CLIENT_INCLUDE_DIR  NAMES wayland-client.h HINTS ${PKG_WAYLAND_INCLUDE_DIRS})
+  FIND_PATH(WAYLAND_SERVER_INCLUDE_DIR  NAMES wayland-server.h HINTS ${PKG_WAYLAND_INCLUDE_DIRS})
+  FIND_PATH(WAYLAND_EGL_INCLUDE_DIR     NAMES wayland-egl.h    HINTS ${PKG_WAYLAND_INCLUDE_DIRS})
+  FIND_PATH(WAYLAND_CURSOR_INCLUDE_DIR  NAMES wayland-cursor.h HINTS ${PKG_WAYLAND_INCLUDE_DIRS})
+
+  FIND_LIBRARY(WAYLAND_CLIENT_LIBRARIES NAMES wayland-client   HINTS ${PKG_WAYLAND_LIBRARY_DIRS})
+  FIND_LIBRARY(WAYLAND_SERVER_LIBRARIES NAMES wayland-server   HINTS ${PKG_WAYLAND_LIBRARY_DIRS})
+  FIND_LIBRARY(WAYLAND_EGL_LIBRARIES    NAMES wayland-egl      HINTS ${PKG_WAYLAND_LIBRARY_DIRS})
+  FIND_LIBRARY(WAYLAND_CURSOR_LIBRARIES NAMES wayland-cursor   HINTS ${PKG_WAYLAND_LIBRARY_DIRS})
+
+  set(WAYLAND_INCLUDE_DIR ${WAYLAND_CLIENT_INCLUDE_DIR} ${WAYLAND_SERVER_INCLUDE_DIR} ${WAYLAND_EGL_INCLUDE_DIR} ${WAYLAND_CURSOR_INCLUDE_DIR})
+
+  set(WAYLAND_LIBRARIES ${WAYLAND_CLIENT_LIBRARIES} ${WAYLAND_SERVER_LIBRARIES} ${WAYLAND_EGL_LIBRARIES} ${WAYLAND_CURSOR_LIBRARIES})
+
+  list(REMOVE_DUPLICATES WAYLAND_INCLUDE_DIR)
+
+  include(FindPackageHandleStandardArgs)
+
+  FIND_PACKAGE_HANDLE_STANDARD_ARGS(WAYLAND_CLIENT  DEFAULT_MSG  WAYLAND_CLIENT_LIBRARIES  WAYLAND_CLIENT_INCLUDE_DIR)
+  FIND_PACKAGE_HANDLE_STANDARD_ARGS(WAYLAND_SERVER  DEFAULT_MSG  WAYLAND_SERVER_LIBRARIES  WAYLAND_SERVER_INCLUDE_DIR)
+  FIND_PACKAGE_HANDLE_STANDARD_ARGS(WAYLAND_EGL     DEFAULT_MSG  WAYLAND_EGL_LIBRARIES     WAYLAND_EGL_INCLUDE_DIR)
+  FIND_PACKAGE_HANDLE_STANDARD_ARGS(WAYLAND_CURSOR  DEFAULT_MSG  WAYLAND_CURSOR_LIBRARIES  WAYLAND_CURSOR_INCLUDE_DIR)
+  FIND_PACKAGE_HANDLE_STANDARD_ARGS(WAYLAND         DEFAULT_MSG  WAYLAND_LIBRARIES         WAYLAND_INCLUDE_DIR)
+
+  MARK_AS_ADVANCED(
+        WAYLAND_INCLUDE_DIR         WAYLAND_LIBRARIES
+        WAYLAND_CLIENT_INCLUDE_DIR  WAYLAND_CLIENT_LIBRARIES
+        WAYLAND_SERVER_INCLUDE_DIR  WAYLAND_SERVER_LIBRARIES
+        WAYLAND_EGL_INCLUDE_DIR     WAYLAND_EGL_LIBRARIES
+        WAYLAND_CURSOR_INCLUDE_DIR  WAYLAND_CURSOR_LIBRARIES
+  )
+
+ENDIF ()