Implement initial Wayland support

[freeglut] / src / wayland / fg_init_wl.c

diff --git a/src/wayland/fg_init_wl.c b/src/wayland/fg_init_wl.c
new file mode 100644 (file)
index 0000000..7b7cd6a
--- /dev/null
+++ b/src/wayland/fg_init_wl.c
@@ -0,0 +1,134 @@
+/*
+ * fg_init_wl.c
+ *
+ * Various freeglut Wayland initialization functions.
+ *
+ * Copyright (c) 2015 Manuel Bachmann. All Rights Reserved.
+ * Written by Manuel Bachmann, <tarnyko@tarnyko.net>
+ * Creation date: Tue Mar 17, 2015
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * MANUEL BACHMANN BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#define FREEGLUT_BUILDING_LIB
+#include <string.h>
+#include <GL/freeglut.h>
+#include "fg_internal.h"
+#include "egl/fg_init_egl.h"
+
+void fgPlatformInitialiseInputDevices( void );
+void fgPlatformCloseInputDevices( void );
+
+
+static void fghRegistryGlobal( void* data,
+                               struct wl_registry* registry,
+                               uint32_t id,
+                               const char* interface,
+                               uint32_t version )
+{
+    SFG_PlatformDisplay* pDisplay = data;
+
+    if ( ! strcmp( interface, "wl_compositor" ) )
+      pDisplay->compositor = wl_registry_bind ( registry, id,
+                                                &wl_compositor_interface, 1 );
+    else if ( ! strcmp( interface, "wl_shell" ) )
+      pDisplay->shell = wl_registry_bind ( registry, id,
+                                           &wl_shell_interface, 1 );
+    else if ( ! strcmp( interface, "wl_seat" ) )
+      pDisplay->seat = wl_registry_bind ( registry, id,
+                                          &wl_seat_interface, 1 );
+    else if ( ! strcmp( interface, "wl_shm" ) )
+      pDisplay->shm = wl_registry_bind ( registry, id,
+                                         &wl_shm_interface, 1 );
+}
+static void fghRegistryGlobalRemove( void* data,
+                                     struct wl_registry* registry,
+                                     uint32_t id )
+{
+}
+static const struct wl_registry_listener fghRegistryListener =
+{
+    fghRegistryGlobal,
+    fghRegistryGlobalRemove
+};
+
+
+static void fghInitialiseCursorTheme(void)
+{
+    fgDisplay.pDisplay.cursor_theme = wl_cursor_theme_load (
+                                        "default", 32,
+                                        fgDisplay.pDisplay.shm );
+};
+
+void fgPlatformInitialize( const char* displayName )
+{
+    fgDisplay.pDisplay.display = wl_display_connect( NULL );
+
+    if( fgDisplay.pDisplay.display == NULL )
+        fgError( "failed to connect to a Wayland compositor" );
+
+    fgDisplay.pDisplay.registry = wl_display_get_registry(
+                                    fgDisplay.pDisplay.display );
+    wl_registry_add_listener( fgDisplay.pDisplay.registry,
+                              &fghRegistryListener,
+                              &fgDisplay.pDisplay );
+    wl_display_roundtrip( fgDisplay.pDisplay.display );
+
+    if( fgDisplay.pDisplay.compositor == NULL ||
+        fgDisplay.pDisplay.shell == NULL ||
+        fgDisplay.pDisplay.seat == NULL ||
+        fgDisplay.pDisplay.shm == NULL )
+          fgError( "failed to discover all needed compositor interfaces" );
+
+    fghInitialiseCursorTheme();
+
+    fghPlatformInitializeEGL();
+
+    /* Get start time */
+    fgState.Time = fgSystemTime();
+
+    fgState.Initialised = GL_TRUE;
+
+    atexit(fgDeinitialize);
+
+    /* InputDevice uses GlutTimerFunc(), so fgState.Initialised must be TRUE */
+    fgPlatformInitialiseInputDevices();
+}
+
+
+void fgPlatformDeinitialiseInputDevices ( void )
+{
+    fgPlatformCloseInputDevices();
+
+    fgState.InputDevsInitialised = GL_FALSE;
+}
+
+
+void fgPlatformCloseDisplay ( void )
+{
+    wl_cursor_theme_destroy( fgDisplay.pDisplay.cursor_theme );
+
+    wl_shm_destroy( fgDisplay.pDisplay.shm );
+    wl_seat_destroy( fgDisplay.pDisplay.seat );
+    wl_shell_destroy( fgDisplay.pDisplay.shell );
+    wl_compositor_destroy( fgDisplay.pDisplay.compositor );
+    wl_registry_destroy( fgDisplay.pDisplay.registry );
+
+    wl_display_disconnect( fgDisplay.pDisplay.display );
+}
+