- Refactor on platform implementation. See comment in interface/platform.h for more info

source/platform/linux/wayland/display.cpp

@@ -0,0 +1,142 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+#include <fennec/platform/linux/wayland/display.h>
+#include <fennec/platform/linux/wayland/lib/loader.h>
+#include <fennec/platform/linux/wayland/lib/wayland-client.h>
+
+#include <fennec/lang/startup.h>
+
+namespace fennec
+{
+
+static display* _create_wayland_display(platform* platform) {
+	wayland_display* display = new wayland_display(platform);
+	if (not display->connected()) {
+		delete display, display = nullptr;
+	}
+	return display;
+}
+
+STATIC_CONSTRUCTOR(_wayland_init) {
+	platform::add_driver(_create_wayland_display, 1);
+}
+
+wayland_display::wayland_display(platform* platform)
+	: display(platform)
+	, _handle(nullptr)
+	, _registry(nullptr)
+	, _compositor(nullptr)
+	, _shell(nullptr)
+	, _seat(nullptr)
+	, _shm(nullptr)
+	, _fifo(false) {
+
+	static constexpr wl_registry_listener listener = {
+		listen_global, listen_global_remove
+	};
+
+	// Load libwayland.so
+	libwayland::load_symbols(_platform);
+
+	// Get handles
+	_handle = wl_display_connect(nullptr);
+
+	if (not _handle) {
+		cleanup();
+		return;
+	}
+
+	_registry = wl_display_get_registry(_handle);
+
+	if (not _registry) {
+		cleanup();
+		return;
+	}
+
+	wl_registry_add_listener(_registry, &listener, this);
+	wl_display_roundtrip(_handle);
+
+	if (not _fifo) {
+		assert(_fifo, "Compositor does not support fifo-v1 protocol, falling back to other display protocols.");
+		cleanup();
+	}
+}
+
+wayland_display::~wayland_display() {
+	if (_handle) {
+		cleanup();
+	}
+}
+
+bool wayland_display::connected() const {
+	return _handle != nullptr;
+}
+
+window* wayland_display::create_window() {
+	return nullptr;
+}
+
+void wayland_display::cleanup() {
+
+	// Cleanup members
+	if (_shell)      wl_shell_destroy(_shell);
+	if (_compositor) wl_compositor_destroy(_compositor);
+	if (_registry)   wl_registry_destroy(_registry);
+	if (_handle) {
+		wl_display_flush(_handle);
+		wl_display_disconnect(_handle);
+	}
+
+	_shell = nullptr;
+	_compositor = nullptr;
+	_registry = nullptr;
+	_handle = nullptr;
+
+	libwayland::unload_symbols(_platform);
+}
+
+	void wayland_display::listen_global(void* data, wl_registry* registry, uint32_t name, const char* itfc, uint32_t version) {
+	static constexpr wl_seat_listener seat_listener = {
+		listen_seat, nullptr
+	};
+
+	wayland_display* device = static_cast<wayland_display*>(data);
+	const cstring interface = cstring(itfc, strlen(itfc) + 1);
+
+	if (interface == "wl_compositor") {
+		device->_compositor = static_cast<wl_compositor*>(wl_registry_bind(registry, name, wl_compositor_interface, version));
+	} else if (interface == "wl_shell") {
+		device->_shell = static_cast<wl_shell*>(wl_registry_bind(registry, name, wl_shell_interface, version));
+	} else if (interface == "wl_seat") {
+		device->_seat = static_cast<wl_seat*>(wl_registry_bind(registry, name, wl_seat_interface, version));
+		wl_seat_add_listener(device->_seat, &seat_listener, device);
+	} else if (interface == "wp_fifo_manager_v1") {
+		device->_fifo = true;
+	}
+
+}
+
+	void wayland_display::listen_global_remove(void*, wl_registry*, uint32_t) {
+}
+
+	void wayland_display::listen_seat(void*, wl_seat*, uint32_t) {
+
+}
+
+}