diff options
Diffstat (limited to 'src/shell-perf-helper.c')
| -rw-r--r-- | src/shell-perf-helper.c | 376 |
1 files changed, 376 insertions, 0 deletions
diff --git a/src/shell-perf-helper.c b/src/shell-perf-helper.c new file mode 100644 index 0000000..a50376e --- /dev/null +++ b/src/shell-perf-helper.c @@ -0,0 +1,376 @@ +/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ + +/* gnome-shell-perf-helper: a program to create windows for performance tests + * + * Running performance tests with whatever windows a user has open results + * in unreliable results, so instead we hide all other windows and talk + * to this program over D-Bus to create just the windows we want. + */ + +#include "config.h" + +#include <math.h> + +#include <gtk/gtk.h> + +#define BUS_NAME "org.gnome.Shell.PerfHelper" + +static void destroy_windows (void); +static void finish_wait_windows (void); +static void check_finish_wait_windows (void); + +static const gchar introspection_xml[] = + "<node>" + " <interface name='org.gnome.Shell.PerfHelper'>" + " <method name='Exit'/>" + " <method name='CreateWindow'>" + " <arg type='i' name='width' direction='in'/>" + " <arg type='i' name='height' direction='in'/>" + " <arg type='b' name='alpha' direction='in'/>" + " <arg type='b' name='maximized' direction='in'/>" + " <arg type='b' name='redraws' direction='in'/>" + " </method>" + " <method name='WaitWindows'/>" + " <method name='DestroyWindows'/>" + " </interface>" + "</node>"; + +typedef struct { + GtkWidget *window; + int width; + int height; + + guint alpha : 1; + guint maximized : 1; + guint redraws : 1; + guint mapped : 1; + guint exposed : 1; + guint pending : 1; + + gint64 start_time; + gint64 time; +} WindowInfo; + +static int opt_idle_timeout = 30; + +static GOptionEntry opt_entries[] = + { + { "idle-timeout", 'r', 0, G_OPTION_ARG_INT, &opt_idle_timeout, "Exit after N seconds", "N" }, + { NULL } + }; + +static guint timeout_id; +static GList *our_windows; +static GList *wait_windows_invocations; + +static gboolean +on_timeout (gpointer data) +{ + timeout_id = 0; + + destroy_windows (); + gtk_main_quit (); + + return FALSE; +} + +static void +establish_timeout (void) +{ + g_clear_handle_id (&timeout_id, g_source_remove); + + timeout_id = g_timeout_add (opt_idle_timeout * 1000, on_timeout, NULL); + g_source_set_name_by_id (timeout_id, "[gnome-shell] on_timeout"); +} + +static void +destroy_windows (void) +{ + GList *l; + + for (l = our_windows; l; l = l->next) + { + WindowInfo *info = l->data; + gtk_widget_destroy (info->window); + g_free (info); + } + + g_list_free (our_windows); + our_windows = NULL; + + check_finish_wait_windows (); +} + +static gboolean +on_window_map_event (GtkWidget *window, + GdkEventAny *event, + WindowInfo *info) +{ + info->mapped = TRUE; + + return FALSE; +} + +static gboolean +on_child_draw (GtkWidget *window, + cairo_t *cr, + WindowInfo *info) +{ + cairo_rectangle_int_t allocation; + double x_offset, y_offset; + + gtk_widget_get_allocation (window, &allocation); + + /* We draw an arbitrary pattern of red lines near the border of the + * window to make it more clear than empty windows if something + * is drastrically wrong. + */ + + cairo_save (cr); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + + if (info->alpha) + cairo_set_source_rgba (cr, 1, 1, 1, 0.5); + else + cairo_set_source_rgb (cr, 1, 1, 1); + + cairo_paint (cr); + cairo_restore (cr); + + if (info->redraws) + { + double position = (info->time - info->start_time) / 1000000.; + x_offset = 20 * cos (2 * M_PI * position); + y_offset = 20 * sin (2 * M_PI * position); + } + else + { + x_offset = y_offset = 0; + } + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, 10); + cairo_move_to (cr, 0, 40 + y_offset); + cairo_line_to (cr, allocation.width, 40 + y_offset); + cairo_move_to (cr, 0, allocation.height - 40 + y_offset); + cairo_line_to (cr, allocation.width, allocation.height - 40 + y_offset); + cairo_move_to (cr, 40 + x_offset, 0); + cairo_line_to (cr, 40 + x_offset, allocation.height); + cairo_move_to (cr, allocation.width - 40 + x_offset, 0); + cairo_line_to (cr, allocation.width - 40 + x_offset, allocation.height); + cairo_stroke (cr); + + info->exposed = TRUE; + + if (info->exposed && info->mapped && info->pending) + { + info->pending = FALSE; + check_finish_wait_windows (); + } + + return FALSE; +} + +static gboolean +tick_callback (GtkWidget *widget, + GdkFrameClock *frame_clock, + gpointer user_data) +{ + WindowInfo *info = user_data; + + if (info->start_time < 0) + info->start_time = info->time = gdk_frame_clock_get_frame_time (frame_clock); + else + info->time = gdk_frame_clock_get_frame_time (frame_clock); + + gtk_widget_queue_draw (widget); + + return TRUE; +} + +static void +create_window (int width, + int height, + gboolean alpha, + gboolean maximized, + gboolean redraws) +{ + WindowInfo *info; + GtkWidget *child; + + info = g_new0 (WindowInfo, 1); + info->width = width; + info->height = height; + info->alpha = alpha; + info->maximized = maximized; + info->redraws = redraws; + info->window = gtk_window_new (GTK_WINDOW_TOPLEVEL); + if (alpha) + gtk_widget_set_visual (info->window, gdk_screen_get_rgba_visual (gdk_screen_get_default ())); + if (maximized) + gtk_window_maximize (GTK_WINDOW (info->window)); + info->pending = TRUE; + info->start_time = -1; + + child = g_object_new (GTK_TYPE_BOX, "visible", TRUE, "app-paintable", TRUE, NULL); + gtk_container_add (GTK_CONTAINER (info->window), child); + + gtk_widget_set_size_request (info->window, width, height); + gtk_widget_set_app_paintable (info->window, TRUE); + g_signal_connect (info->window, "map-event", G_CALLBACK (on_window_map_event), info); + g_signal_connect (child, "draw", G_CALLBACK (on_child_draw), info); + gtk_widget_show (info->window); + + if (info->redraws) + gtk_widget_add_tick_callback (info->window, tick_callback, + info, NULL); + + our_windows = g_list_prepend (our_windows, info); +} + +static void +finish_wait_windows (void) +{ + GList *l; + + for (l = wait_windows_invocations; l; l = l->next) + g_dbus_method_invocation_return_value (l->data, NULL); + + g_list_free (wait_windows_invocations); + wait_windows_invocations = NULL; +} + +static void +check_finish_wait_windows (void) +{ + GList *l; + gboolean have_pending = FALSE; + + for (l = our_windows; l; l = l->next) + { + WindowInfo *info = l->data; + if (info->pending) + have_pending = TRUE; + } + + if (!have_pending) + finish_wait_windows (); +} + +static void +handle_method_call (GDBusConnection *connection, + const gchar *sender, + const gchar *object_path, + const gchar *interface_name, + const gchar *method_name, + GVariant *parameters, + GDBusMethodInvocation *invocation, + gpointer user_data) +{ + /* Push off the idle timeout */ + establish_timeout (); + + if (g_strcmp0 (method_name, "Exit") == 0) + { + destroy_windows (); + + g_dbus_method_invocation_return_value (invocation, NULL); + g_dbus_connection_flush_sync (connection, NULL, NULL); + + gtk_main_quit (); + } + else if (g_strcmp0 (method_name, "CreateWindow") == 0) + { + int width, height; + gboolean alpha, maximized, redraws; + + g_variant_get (parameters, "(iibbb)", &width, &height, &alpha, &maximized, &redraws); + + create_window (width, height, alpha, maximized, redraws); + g_dbus_method_invocation_return_value (invocation, NULL); + } + else if (g_strcmp0 (method_name, "WaitWindows") == 0) + { + wait_windows_invocations = g_list_prepend (wait_windows_invocations, invocation); + check_finish_wait_windows (); + } + else if (g_strcmp0 (method_name, "DestroyWindows") == 0) + { + destroy_windows (); + g_dbus_method_invocation_return_value (invocation, NULL); + } +} + +static const GDBusInterfaceVTable interface_vtable = +{ + handle_method_call, + NULL, + NULL +}; + +static void +on_bus_acquired (GDBusConnection *connection, + const gchar *name, + gpointer user_data) +{ + GDBusNodeInfo *introspection_data = g_dbus_node_info_new_for_xml (introspection_xml, NULL); + + g_dbus_connection_register_object (connection, + "/org/gnome/Shell/PerfHelper", + introspection_data->interfaces[0], + &interface_vtable, + NULL, /* user_data */ + NULL, /* user_data_free_func */ + NULL); /* GError** */ +} + +static void +on_name_acquired (GDBusConnection *connection, + const gchar *name, + gpointer user_data) +{ +} + +static void +on_name_lost (GDBusConnection *connection, + const gchar *name, + gpointer user_data) +{ + destroy_windows (); + gtk_main_quit (); +} + +int +main (int argc, char **argv) +{ + GOptionContext *context; + GError *error = NULL; + + /* Since we depend on this, avoid the possibility of lt-gnome-shell-perf-helper */ + g_set_prgname ("gnome-shell-perf-helper"); + + context = g_option_context_new (" - server to create windows for performance testing"); + g_option_context_add_main_entries (context, opt_entries, NULL); + g_option_context_add_group (context, gtk_get_option_group (TRUE)); + if (!g_option_context_parse (context, &argc, &argv, &error)) + { + g_print ("option parsing failed: %s\n", error->message); + return 1; + } + + g_bus_own_name (G_BUS_TYPE_SESSION, + BUS_NAME, + G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT | + G_BUS_NAME_OWNER_FLAGS_REPLACE, + on_bus_acquired, + on_name_acquired, + on_name_lost, + NULL, + NULL); + + establish_timeout (); + + gtk_main (); + + return 0; +} |