wayland: Split outputs to another file

1 files changed, 234 insertions, 0 deletions

diff --git a/src/wayland/meta-wayland-outputs.c b/src/wayland/meta-wayland-outputs.c
new file mode 100644
index 000000000..8d02cd92c
--- /dev/null
+++ b/src/wayland/meta-wayland-outputs.c
@@ -0,0 +1,234 @@
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/*
+ * Copyright (C) 2014 Red Hat
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Written by:
+ *     Jasper St. Pierre <jstpierre@mecheye.net>
+ */
+
+#include "config.h"
+
+#include "meta-wayland-outputs.h"
+
+#include "meta-wayland-private.h"
+#include "meta-monitor-manager.h"
+
+typedef struct {
+  MetaOutput               *output;
+  struct wl_global         *global;
+  int                       x, y;
+  enum wl_output_transform  transform;
+
+  GList                    *resources;
+} MetaWaylandOutput;
+
+static void
+output_resource_destroy (struct wl_resource *res)
+{
+  MetaWaylandOutput *wayland_output;
+
+  wayland_output = wl_resource_get_user_data (res);
+  wayland_output->resources = g_list_remove (wayland_output->resources, res);
+}
+
+static void
+bind_output (struct wl_client *client,
+             void *data,
+             guint32 version,
+             guint32 id)
+{
+  MetaWaylandOutput *wayland_output = data;
+  MetaOutput *output = wayland_output->output;
+  struct wl_resource *resource;
+  guint mode_flags;
+
+  resource = wl_resource_create (client, &wl_output_interface,
+				 MIN (META_WL_OUTPUT_VERSION, version), id);
+  wayland_output->resources = g_list_prepend (wayland_output->resources, resource);
+
+  wl_resource_set_user_data (resource, wayland_output);
+  wl_resource_set_destructor (resource, output_resource_destroy);
+
+  meta_verbose ("Binding output %p/%s (%u, %u, %u, %u) x %f\n",
+                output, output->name,
+                output->crtc->rect.x, output->crtc->rect.y,
+                output->crtc->rect.width, output->crtc->rect.height,
+                output->crtc->current_mode->refresh_rate);
+
+  wl_resource_post_event (resource,
+                          WL_OUTPUT_GEOMETRY,
+                          (int)output->crtc->rect.x,
+                          (int)output->crtc->rect.y,
+                          output->width_mm,
+                          output->height_mm,
+                          /* Cogl values reflect XRandR values,
+                             and so does wayland */
+                          output->subpixel_order,
+                          output->vendor,
+                          output->product,
+                          output->crtc->transform);
+
+  g_assert (output->crtc->current_mode != NULL);
+
+  mode_flags = WL_OUTPUT_MODE_CURRENT;
+  if (output->crtc->current_mode == output->preferred_mode)
+    mode_flags |= WL_OUTPUT_MODE_PREFERRED;
+
+  wl_resource_post_event (resource,
+                          WL_OUTPUT_MODE,
+                          mode_flags,
+                          (int)output->crtc->current_mode->width,
+                          (int)output->crtc->current_mode->height,
+                          (int)output->crtc->current_mode->refresh_rate);
+
+  if (version >= META_WL_OUTPUT_HAS_DONE)
+    wl_resource_post_event (resource,
+                            WL_OUTPUT_DONE);
+}
+
+static void
+wayland_output_destroy_notify (gpointer data)
+{
+  MetaWaylandOutput *wayland_output = data;
+  GList *resources;
+
+  /* Make sure the destructors don't mess with the list */
+  resources = wayland_output->resources;
+  wayland_output->resources = NULL;
+
+  wl_global_destroy (wayland_output->global);
+  g_list_free (resources);
+
+  g_slice_free (MetaWaylandOutput, wayland_output);
+}
+
+static void
+wayland_output_update_for_output (MetaWaylandOutput *wayland_output,
+                                  MetaOutput        *output)
+{
+  GList *iter;
+  guint mode_flags;
+
+  g_assert (output->crtc->current_mode != NULL);
+
+  mode_flags = WL_OUTPUT_MODE_CURRENT;
+  if (output->crtc->current_mode == output->preferred_mode)
+    mode_flags |= WL_OUTPUT_MODE_PREFERRED;
+
+  for (iter = wayland_output->resources; iter; iter = iter->next)
+    {
+      struct wl_resource *resource = iter->data;
+
+      if (wayland_output->x != output->crtc->rect.x ||
+          wayland_output->y != output->crtc->rect.y ||
+          wayland_output->transform != output->crtc->transform)
+        {
+            wl_resource_post_event (resource,
+                                    WL_OUTPUT_GEOMETRY,
+                                    (int)output->crtc->rect.x,
+                                    (int)output->crtc->rect.y,
+                                    output->width_mm,
+                                    output->height_mm,
+                                    output->subpixel_order,
+                                    output->vendor,
+                                    output->product,
+                                    output->crtc->transform);
+        }
+
+      wl_resource_post_event (resource,
+                              WL_OUTPUT_MODE,
+                              mode_flags,
+                              (int)output->crtc->current_mode->width,
+                              (int)output->crtc->current_mode->height,
+                              (int)output->crtc->current_mode->refresh_rate);
+    }
+
+  /* It's very important that we change the output pointer here, as
+     the old structure is about to be freed by MetaMonitorManager */
+  wayland_output->output = output;
+  wayland_output->x = output->crtc->rect.x;
+  wayland_output->y = output->crtc->rect.y;
+  wayland_output->transform = output->crtc->transform;
+}
+
+static GHashTable *
+meta_wayland_compositor_update_outputs (MetaWaylandCompositor *compositor,
+                                        MetaMonitorManager    *monitors)
+{
+  MetaOutput *outputs;
+  unsigned int i, n_outputs;
+  GHashTable *new_table;
+
+  outputs = meta_monitor_manager_get_outputs (monitors, &n_outputs);
+  new_table = g_hash_table_new_full (NULL, NULL, NULL, wayland_output_destroy_notify);
+
+  for (i = 0; i < n_outputs; i++)
+    {
+      MetaOutput *output = &outputs[i];
+      MetaWaylandOutput *wayland_output;
+
+      /* wayland does not expose disabled outputs */
+      if (output->crtc == NULL)
+        {
+          g_hash_table_remove (compositor->outputs, GSIZE_TO_POINTER (output->output_id));
+          continue;
+        }
+
+      wayland_output = g_hash_table_lookup (compositor->outputs, GSIZE_TO_POINTER (output->output_id));
+
+      if (wayland_output)
+        {
+          g_hash_table_steal (compositor->outputs, GSIZE_TO_POINTER (output->output_id));
+        }
+      else
+        {
+          wayland_output = g_slice_new0 (MetaWaylandOutput);
+          wayland_output->global = wl_global_create (compositor->wayland_display,
+                                                     &wl_output_interface,
+						     META_WL_OUTPUT_VERSION,
+                                                     wayland_output, bind_output);
+        }
+
+      wayland_output_update_for_output (wayland_output, output);
+      g_hash_table_insert (new_table, GSIZE_TO_POINTER (output->output_id), wayland_output);
+    }
+
+  g_hash_table_destroy (compositor->outputs);
+  return new_table;
+}
+
+static void
+on_monitors_changed (MetaMonitorManager    *monitors,
+                     MetaWaylandCompositor *compositor)
+{
+  compositor->outputs = meta_wayland_compositor_update_outputs (compositor, monitors);
+}
+
+void
+meta_wayland_outputs_init (MetaWaylandCompositor *compositor)
+{
+  MetaMonitorManager *monitors;
+
+  monitors = meta_monitor_manager_get ();
+  g_signal_connect (monitors, "monitors-changed",
+                    G_CALLBACK (on_monitors_changed), compositor);
+
+  compositor->outputs = g_hash_table_new_full (NULL, NULL, NULL, wayland_output_destroy_notify);
+  compositor->outputs = meta_wayland_compositor_update_outputs (compositor, monitors);
+}