Some wayland cleanup

README.md

@@ -30,6 +30,23 @@ sudo apt-get install libasound2-dev
 sudo apt-get install libpng-dev
 ```
 
+#### Window rendering
+
+```bash
+sudo apt-get install libwayland-dev wayland-protocols
+```
+
+We need to generate suitable xdg shell c code for wayland:
+
+```bash
+mkdir $WORK_DIR
+cd $WORK_DIR
+wayland-scanner private-code < /usr/share/wayland-protocols/stable/xdg-shell/xdg-shell.xml > xdg-shell-protocol.cpp
+wayland-scanner client-header < /usr/share/wayland-protocols/stable/xdg-shell/xdg-shell.xml > xdg-shell-client-protocol.h
+export WAYLAND_EXTENSION_DIR=$WORK_DIR
+```
+
+In `xdg-shell-protocol.cpp` - we need access to `xdg_wm_base_interface` so export it also `extern const struct wl_interface xdg_wm_base_interface;` as per similar interface structs.
 
 # Build from Source
 

src/windows/CMakeLists.txt

@@ -23,20 +23,15 @@ if(UNIX)
     endif()
 
     find_path(WAYLAND_CLIENT_INCLUDE_DIR NAMES wayland-client.h)
-	if (NOT ${WAYLAND_CLIENT_INCLUDE_DIR-NOTFOUND})
+    #if (NOT ${WAYLAND_CLIENT_INCLUDE_DIR-NOTFOUND})
         list(APPEND WAYLAND_INCLUDE_DIRS ${WAYLAND_CLIENT_INCLUDE_DIR})
 
-		find_path(WAYLAND_EXTENSIONS_INCLUDE_DIR NAMES xdg-shell-client-protocol.h
+        find_path(WAYLAND_EXTENSIONS_INCLUDE_DIR NAMES xdg-shell-client-protocol.h HINTS ENV WAYLAND_EXTENSION_DIR)
-		  HINTS ENV WAYLAND_EXTENSION_DIR
+        
-		)	
+        #if(NOT ${WAYLAND_EXTENSIONS_INCLUDE_DIR-NOTFOUND})
-		if(NOT ${WAYLAND_EXTENSIONS_INCLUDE_DIR-NOTFOUND})
+            find_library(WAYLAND_CLIENT_LIBRARY NAMES wayland-client libwayland-client)
-			find_library(
-			  WAYLAND_CLIENT_LIBRARY
-			  NAMES wayland-client libwayland-client
-			)
 
             list(APPEND WAYLAND_INCLUDE_DIRS ${WAYLAND_EXTENSIONS_INCLUDE_DIR})
-			
             list(APPEND platform_INCLUDES
                 ui_interfaces/wayland/WaylandWindowInterface.cpp
                 ui_interfaces/wayland/WaylandSurface.cpp
@@ -44,12 +39,12 @@ if(UNIX)
                 ${WAYLAND_EXTENSIONS_INCLUDE_DIR}/xdg-shell-protocol.cpp
                 )
             set(_HAS_WAYLAND ON)
-		else()
+		#else()
-			message(STATUS "Wayland Extensions Header not found - not building Wayland support")	
+			#message(STATUS "Wayland Extensions Header not found - not building Wayland support")	
-		endif()
+		#endif()
-	else()
+	#else()
-		message(STATUS "Wayland Client Header not found - not building Wayland support")	
+		#message(STATUS "Wayland Client Header not found - not building Wayland support")	
-	endif()
+	#endif()
     
 else()
 	list(APPEND platform_INCLUDES
@@ -87,6 +82,7 @@ target_include_directories(windows PUBLIC
                           )
 
 target_link_libraries(windows PUBLIC ${platform_LIBS} core geometry graphics ui_elements ${WAYLAND_CLIENT_LIBRARY})
+target_compile_options(windows PRIVATE -Wno-attributes) # From xdg shell autogen code
 
 set_property(TARGET windows PROPERTY FOLDER src)
 set_target_properties( windows PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS ON ) 

src/windows/managers/WindowManager.h

@@ -11,10 +11,6 @@
 class WindowManager
 {
 
-private:
-
-    std::vector<WindowUPtr> mWindows;
-
 public:
 
     WindowManager();
@@ -33,6 +29,8 @@ public:
 
     void OnKeyboardEvent(const KeyboardEvent* event);
 
+private:
+    std::vector<WindowUPtr> mWindows;
 };
 
 using WindowManagerUPtr = std::unique_ptr<WindowManager>;

src/windows/ui_interfaces/wayland/WaylandBuffer.cpp

@@ -1,15 +1,10 @@
 #include "WaylandBuffer.h"
 
+#include "FileLogger.h"
+
 #include <sys/mman.h>
 #include <unistd.h>
 
-#include <iostream>
-
-void WaylandBuffer::setSharedMemory(wl_shm* shared_memory)
-{
-	mWlSharedMemory = shared_memory;
-}
-
 void WaylandBuffer::initializeSharedBuffer(int size)
 {
     mSharedMemory = std::make_unique<SharedMemory>();
@@ -19,6 +14,7 @@ void WaylandBuffer::initializeSharedBuffer(int size)
     {
         return;
     }
+
     mPoolData = static_cast<uint8_t*>(mmap(nullptr, size, PROT_READ | PROT_WRITE, MAP_SHARED, mSharedMemory->getFileDescriptor(), 0));
     if (mPoolData == MAP_FAILED)
     {
@@ -27,17 +23,22 @@ void WaylandBuffer::initializeSharedBuffer(int size)
     }
 }
 
+void WaylandBuffer::setSharedMemory(wl_shm* shared_memory)
+{
+    mWlSharedMemory = shared_memory;
+}
+
 void WaylandBuffer::setUpPool(int size, int width, int height, int stride)
 {
     if (!mSharedMemory->isValid())
     {
-		std::cout << "Failed to allocate shared memory" << std::endl;
+        MLOG_ERROR("Failed to allocate shared memory.");
         return;
     }
 
     if (!mPoolData)
     {
-		std::cout << "Failed to mmap pool" << std::endl;
+        MLOG_ERROR("Failed to allocate shared memory.");
         return;
     }
 

src/windows/ui_interfaces/wayland/WaylandBuffer.h

@@ -11,15 +11,13 @@ class WaylandBuffer
 public:
 
     WaylandBuffer() = default;
-
-	void setSharedMemory(wl_shm* shared_memory);
-
     void initializeSharedBuffer(int size);
 
     uint8_t* getPoolData();
     wl_buffer* getWorkingBuffer();
 
     void setUpPool(int size, int width, int height, int stride);
+    void setSharedMemory(wl_shm* shared_memory);
 
     void tearDownPool(int size);
 

src/windows/ui_interfaces/wayland/WaylandSurface.cpp

@@ -1,9 +1,5 @@
 #include "WaylandSurface.h"
 
-#include <iostream>
-#include <sys/mman.h>
-#include <unistd.h>
-
 WaylandSurface::WaylandSurface(mt::Window* window)
     : mWindow(window)
 {

src/windows/ui_interfaces/wayland/WaylandSurface.h

@@ -15,7 +15,6 @@ class WaylandSurface
 {
 
 public:
-
     WaylandSurface(mt::Window* window);
 
     ~WaylandSurface();
@@ -29,7 +28,6 @@ public:
     void drawCheckerboard(int width, int height, int offset);
 
 private:
-
     mt::Window* mWindow{nullptr};
 
     wl_surface* mSurface{nullptr};

src/windows/ui_interfaces/wayland/WaylandWindowInterface.cpp

@@ -1,16 +1,20 @@
 #include "WaylandWindowInterface.h"
 
-#include <cstring>
+#include "FileLogger.h"
+#include "WaylandSurface.h"
+#include "WaylandBuffer.h"
 
-WaylandWindowInterface::WaylandWindowInterface()
+#include <cstring>
-	: mBuffer(std::make_shared<WaylandBuffer>())
+#include <sstream>
-{
+
-	auto registry_handle_global_func = [](void *data, struct wl_registry *registry,
+void WaylandWindowInterface::registryHandleGlobalCallback(void *data, struct wl_registry *registry,
         uint32_t name, const char *interface, uint32_t version)
 {
     auto thisClass = static_cast<WaylandWindowInterface*>(data);
 
-		printf("interface: '%s', version: %d, name: %d\n", interface, version, name);
+    std::stringstream sstrm;
+    sstrm << "interface: " << interface << " version " << version << " name " << name;
+    MLOG_INFO(sstrm.str());
 
     if (strcmp(interface, wl_compositor_interface.name) == 0)
     {
@@ -24,16 +28,19 @@ WaylandWindowInterface::WaylandWindowInterface()
     {
         thisClass->setXdgBase(static_cast<xdg_wm_base*>(wl_registry_bind(registry, name, &xdg_wm_base_interface, 1)));
     }
-	};
+}
 
-	auto registry_handle_global_remove_func = [](void *data, struct wl_registry *registry,
+void WaylandWindowInterface::registryHandleGlobalRemoveCallback(void *data, struct wl_registry *registry, uint32_t name)
-			uint32_t name)
 {
-		// This space deliberately left blank;
-	};
 
-	mRegistryListener.global = registry_handle_global_func;
+}
-	mRegistryListener.global_remove = registry_handle_global_remove_func;
+
+
+WaylandWindowInterface::WaylandWindowInterface()
+    : mBuffer(std::make_shared<WaylandBuffer>())
+{
+    mRegistryListener.global = registryHandleGlobalCallback;
+    mRegistryListener.global_remove = registryHandleGlobalRemoveCallback;
 }
 
 WaylandWindowInterface::~WaylandWindowInterface()
@@ -41,6 +48,27 @@ WaylandWindowInterface::~WaylandWindowInterface()
 
 }
 
+void WaylandWindowInterface::connect()
+{
+    mDisplay = wl_display_connect(nullptr);
+
+    if (!mDisplay)
+    {
+        MLOG_ERROR("Display connect error");
+        return;
+    }
+
+    auto registry = wl_display_get_registry(mDisplay);
+    if (!registry)
+    {
+        MLOG_ERROR("Failed to get registry");
+        return;
+    }
+
+    wl_registry_add_listener(registry, &mRegistryListener, this);
+    wl_display_roundtrip(mDisplay);
+}
+
 void WaylandWindowInterface::setXdgBase(xdg_wm_base* xdg_base)
 {
     mXdgBase = xdg_base;
@@ -53,11 +81,6 @@ void WaylandWindowInterface::setXdgBase(xdg_wm_base* xdg_base)
     xdg_wm_base_add_listener(mXdgBase, &mXdgBaseListener, this);
 }
 
-void WaylandWindowInterface::doXdgPong(uint32_t serial)
-{
-	xdg_wm_base_pong(mXdgBase, serial);
-}
-
 void WaylandWindowInterface::setCompositor(wl_compositor* compositor)
 {
     mCompositor = compositor;
@@ -68,23 +91,9 @@ void WaylandWindowInterface::setSharedMemory(wl_shm* shared_memory)
     mBuffer->setSharedMemory(shared_memory);
 }
 
-void WaylandWindowInterface::connect()
+void WaylandWindowInterface::doXdgPong(uint32_t serial)
 {
-	mDisplay = wl_display_connect(nullptr);
+    xdg_wm_base_pong(mXdgBase, serial);
-
-	if (!mDisplay)
-	{
-		std::cout << "Display connect error" << std::endl;
-	}
-
-	auto registry = wl_display_get_registry(mDisplay);
-	if (!registry)
-	{
-		std::cout << "Failed to get registry" << std::endl;
-	}
-
-	wl_registry_add_listener(registry, &mRegistryListener, this);
-	wl_display_roundtrip(mDisplay);
 }
 
 void WaylandWindowInterface::addWindow(mt::Window* window)
@@ -108,7 +117,8 @@ void WaylandWindowInterface::disconnect()
 
 void WaylandWindowInterface::run()
 {
-	while (wl_display_dispatch(mDisplay) != -1) {
+    while (wl_display_dispatch(mDisplay) != -1)
+    {
         /* This space deliberately left blank */
     }
 }

src/windows/ui_interfaces/wayland/WaylandWindowInterface.h

@@ -1,18 +1,17 @@
 #pragma once
 
-#include "wayland-client.h"
-#include "xdg-shell-client-protocol.h"
-
 #include "Window.h"
 #include "SharedMemory.h"
 
-#include "WaylandSurface.h"
+#include "wayland-client.h"
-#include "WaylandBuffer.h"
+#include "xdg-shell-client-protocol.h"
 
-#include <iostream>
 #include <vector>
 #include <memory>
 
+class WaylandSurface;
+class WaylandBuffer;
+
 class WaylandWindowInterface
 {
 
@@ -22,14 +21,6 @@ public:
 
     ~WaylandWindowInterface();
 
-	void setXdgBase(xdg_wm_base* xdg_base);
-
-	void doXdgPong(uint32_t serial);
-
-	void setCompositor(wl_compositor* compositor);
-
-	void setSharedMemory(wl_shm* shared_memory);
-
     void connect();
 
     void disconnect();
@@ -41,8 +32,16 @@ public:
     void mapWindow(mt::Window* window);
 
 private:
+    static void registryHandleGlobalCallback(void *data, struct wl_registry *registry, uint32_t name, const char *interface, uint32_t version);
+    static void registryHandleGlobalRemoveCallback(void *data, struct wl_registry *registry, uint32_t name);
 
-	std::vector<std::unique_ptr<WaylandSurface> > mSurfaces;
+    void doXdgPong(uint32_t serial);
+
+    void setCompositor(wl_compositor* compositor);
+
+    void setSharedMemory(wl_shm* shared_memory);
+
+    void setXdgBase(xdg_wm_base* xdg_base);
 
     wl_display* mDisplay{nullptr};
     wl_compositor* mCompositor{nullptr};
@@ -51,6 +50,7 @@ private:
     xdg_wm_base* mXdgBase{nullptr};
     xdg_wm_base_listener mXdgBaseListener;
 
+    std::vector<std::unique_ptr<WaylandSurface> > mSurfaces;
     std::shared_ptr<WaylandBuffer> mBuffer;
 
 };

test/windows/TestWaylandWindow.cpp

@@ -1,11 +1,12 @@
 #include "WaylandWindowInterface.h"
 
 #include "Window.h"
-
+#include "FileLogger.h"
-
 
 int main()
 {
+    FileLogger::GetInstance().Open();
+
     WaylandWindowInterface window_interface;
     window_interface.connect();