some basic startup code

src/Compositor.cpp

@@ -0,0 +1,109 @@
+#include "Compositor.hpp"
+
+CCompositor::CCompositor() {
+    m_sWLDisplay = wl_display_create();
+
+    m_sWLRBackend = wlr_backend_autocreate(m_sWLDisplay);
+
+    if (!m_sWLRBackend) {
+        Debug::log(CRIT, "m_sWLRBackend was NULL!");
+        RIP("m_sWLRBackend NULL!");
+        return;
+    }
+
+    m_sWLRRenderer = wlr_renderer_autocreate(m_sWLRBackend);
+
+    if (!m_sWLRRenderer) {
+        Debug::log(CRIT, "m_sWLRRenderer was NULL!");
+        RIP("m_sWLRRenderer NULL!");
+        return;
+    }
+
+    m_sWLRAllocator = wlr_allocator_autocreate(m_sWLRBackend, m_sWLRRenderer);
+
+    if (!m_sWLRAllocator) {
+        Debug::log(CRIT, "m_sWLRAllocator was NULL!");
+        RIP("m_sWLRAllocator NULL!");
+        return;
+    }
+
+
+    m_sWLRCompositor = wlr_compositor_create(m_sWLDisplay, m_sWLRRenderer);
+    wlr_export_dmabuf_manager_v1_create(m_sWLDisplay);
+    wlr_screencopy_manager_v1_create(m_sWLDisplay);
+    wlr_data_control_manager_v1_create(m_sWLDisplay);
+    wlr_data_device_manager_create(m_sWLDisplay);
+    wlr_gamma_control_manager_v1_create(m_sWLDisplay);
+    wlr_primary_selection_v1_device_manager_create(m_sWLDisplay);
+    wlr_viewporter_create(m_sWLDisplay);
+
+    m_sWLRXDGActivation - wlr_xdg_activation_v1_create(m_sWLDisplay);
+    m_sWLROutputLayout = wlr_output_layout_create();
+
+    wl_signal_add(&m_sWLRXDGActivation->events.request_activate, &Events::listener_activate);
+    wl_signal_add(&m_sWLROutputLayout->events.change, &Events::listener_change);
+    wl_signal_add(&m_sWLRBackend->events.new_output, &Events::listener_newOutput);
+
+    m_sWLRIdle = wlr_idle_create(m_sWLDisplay);
+    m_sWLRLayerShell = wlr_layer_shell_v1_create(m_sWLDisplay);
+    m_sWLRXDGShell = wlr_xdg_shell_create(m_sWLDisplay);
+
+    wl_signal_add(&m_sWLRLayerShell->events.new_surface, &Events::listener_newLayerSurface);
+    wl_signal_add(&m_sWLRXDGShell->events.new_surface, &Events::listener_newXDGSurface);
+
+    wlr_server_decoration_manager_set_default_mode(wlr_server_decoration_manager_create(m_sWLDisplay), WLR_SERVER_DECORATION_MANAGER_MODE_SERVER);
+    wlr_xdg_decoration_manager_v1_create(m_sWLDisplay);
+
+    m_sWLRCursor = wlr_cursor_create();
+    wlr_cursor_attach_output_layout(m_sWLRCursor, m_sWLROutputLayout);
+
+    m_sWLRXCursorMgr = wlr_xcursor_manager_create(NULL, 24);
+
+    m_sWLRVKeyboardMgr = wlr_virtual_keyboard_manager_v1_create(m_sWLDisplay);
+
+    m_sWLRSeat = wlr_seat_create(m_sWLDisplay, "seat0");
+
+    m_sWLROutputMgr = wlr_output_manager_v1_create(m_sWLDisplay);
+
+    m_sWLRPresentation = wlr_presentation_create(m_sWLDisplay, m_sWLRBackend);
+
+    wl_signal_add(&m_sWLRCursor->events.motion, &Events::listener_mouseMove);
+    wl_signal_add(&m_sWLRCursor->events.motion_absolute, &Events::listener_mouseMoveAbsolute);
+    wl_signal_add(&m_sWLRCursor->events.button, &Events::listener_mouseButton);
+    wl_signal_add(&m_sWLRCursor->events.axis, &Events::listener_mouseAxis);
+    wl_signal_add(&m_sWLRCursor->events.frame, &Events::listener_mouseFrame);
+    wl_signal_add(&m_sWLRBackend->events.new_input, &Events::listener_newInput);
+    wl_signal_add(&m_sWLRVKeyboardMgr->events.new_virtual_keyboard, &Events::listener_newKeyboard);
+    wl_signal_add(&m_sWLRSeat->events.request_set_cursor, &Events::listener_requestMouse);
+    wl_signal_add(&m_sWLRSeat->events.request_set_selection, &Events::listener_requestSetSel);
+    wl_signal_add(&m_sWLRSeat->events.request_set_primary_selection, &Events::listener_requestSetPrimarySel);
+    wl_signal_add(&m_sWLROutputMgr->events.apply, &Events::listener_outputMgrApply);
+    wl_signal_add(&m_sWLROutputMgr->events.test, &Events::listener_outputMgrTest);
+
+    // TODO: XWayland
+}
+
+void CCompositor::startCompositor() {
+    m_szWLDisplaySocket = wl_display_add_socket_auto(m_sWLDisplay);
+
+    if (!m_szWLDisplaySocket) {
+        Debug::log(CRIT, "m_szWLDisplaySocket NULL!");
+        RIP("m_szWLDisplaySocket NULL!");
+    }
+
+    setenv("WAYLAND_DISPLAY", m_szWLDisplaySocket, 1);
+
+    signal(SIGPIPE, SIG_IGN);
+
+
+    if (!wlr_backend_start(m_sWLRBackend)) {
+        Debug::log(CRIT, "Backend did not start!");
+        RIP("Backend did not start!");
+    }
+
+    wlr_xcursor_manager_set_cursor_image(m_sWLRXCursorMgr, "left_ptr", m_sWLRCursor);
+
+    // This blocks until we are done.
+    Debug::log(LOG, "Hyprland is ready, running the event loop!");
+    wl_display_run(m_sWLDisplay);
+}

src/Compositor.hpp

@@ -0,0 +1,40 @@
+#pragma once
+
+#include <memory>
+
+#include "defines.hpp"
+#include "debug/Log.hpp"
+#include "events/Events.hpp"
+
+class CCompositor {
+public:
+    CCompositor();
+    ~CCompositor();
+
+    // ------------------ WLR BASICS ------------------ //
+    wl_display*                      m_sWLDisplay;
+    wlr_backend*                     m_sWLRBackend;
+    wlr_renderer*                    m_sWLRRenderer;
+    wlr_allocator*                   m_sWLRAllocator;
+    wlr_compositor*                  m_sWLRCompositor;
+    wlr_xdg_activation_v1*           m_sWLRXDGActivation;
+    wlr_output_layout*               m_sWLROutputLayout;
+    wlr_idle*                        m_sWLRIdle;
+    wlr_layer_shell_v1*              m_sWLRLayerShell;
+    wlr_xdg_shell*                   m_sWLRXDGShell;
+    wlr_cursor*                      m_sWLRCursor;
+    wlr_xcursor_manager*             m_sWLRXCursorMgr;
+    wlr_virtual_keyboard_manager_v1* m_sWLRVKeyboardMgr;
+    wlr_seat*                        m_sWLRSeat;
+    wlr_output_manager_v1*           m_sWLROutputMgr;
+    wlr_presentation*                m_sWLRPresentation;
+    // ------------------------------------------------- //
+
+
+    const char*             m_szWLDisplaySocket;
+
+    void            startCompositor();    
+};
+
+
+inline std::unique_ptr<CCompositor> g_pCompositor;

src/defines.hpp

@@ -7,3 +7,5 @@
 #endif
 
 #define RIP(format, ... ) { fprintf(stderr, format "\n", ##__VA_ARGS__); exit(EXIT_FAILURE); }
+
+#define LISTENER(name) inline wl_listener listener_##name = {.notify = ##name};

src/events/Events.cpp

@@ -0,0 +1,5 @@
+#include "Events.hpp"
+
+void Events::listener_activate(wl_listener* listener, void* data) {
+    
+}

src/events/Events.hpp

@@ -0,0 +1,25 @@
+#pragma once
+#include "../defines.hpp"
+
+namespace Events {
+    LISTENER(activate);
+    LISTENER(change);
+    LISTENER(newOutput);
+    LISTENER(newLayerSurface);
+    LISTENER(newXDGSurface);
+
+    LISTENER(mouseMove);
+    LISTENER(mouseMoveAbsolute);
+    LISTENER(mouseButton);
+    LISTENER(mouseAxis);
+    LISTENER(mouseFrame);
+    LISTENER(newInput);
+    LISTENER(newKeyboard);
+
+    LISTENER(requestMouse);
+    LISTENER(requestSetSel);
+    LISTENER(requestSetPrimarySel);
+
+    LISTENER(outputMgrApply);
+    LISTENER(outputMgrTest);
+};

src/main.cpp

@@ -1,14 +1,25 @@
 #include "defines.hpp"
 #include "debug/Log.hpp"
+#include "Compositor.hpp"
 
 int main(int argc, char** argv) {
 
-    
-
     if (!getenv("XDG_RUNTIME_DIR"))
         RIP("XDG_RUNTIME_DIR not set!");
 
+    Debug::log(LOG, "Welcome to Hyprland!");
 
+    // let's init the compositor.
+    // it initializes basic Wayland stuff in the constructor.
+    g_pCompositor = std::make_unique<CCompositor>(); 
+
+    Debug::log(LOG, "Hyprland init finished.");
+
+    // If all's good to go, start.
+    g_pCompositor->startCompositor();
+
+    // If we are here it means we got yote.
+    Debug::log(LOG, "Hyprland reached the end.");
 
     return EXIT_SUCCESS;
 }