/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ /* * Copyright (C) 2016 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. */ #include "config.h" #include "backends/meta-monitor.h" #include "backends/meta-backend-private.h" #include "backends/meta-crtc.h" #include "backends/meta-gpu.h" #include "backends/meta-monitor-manager-private.h" #include "backends/meta-settings-private.h" #include "backends/meta-output.h" #include "core/boxes-private.h" #define SCALE_FACTORS_PER_INTEGER 4 #define SCALE_FACTORS_STEPS (1.0 / (float) SCALE_FACTORS_PER_INTEGER) #define MINIMUM_SCALE_FACTOR 1.0f #define MAXIMUM_SCALE_FACTOR 4.0f #define MINIMUM_LOGICAL_AREA (800 * 480) #define MAXIMUM_REFRESH_RATE_DIFF 0.001 typedef struct _MetaMonitorMode { MetaMonitor *monitor; char *id; MetaMonitorModeSpec spec; MetaMonitorCrtcMode *crtc_modes; } MetaMonitorMode; typedef struct _MetaMonitorModeTiled { MetaMonitorMode parent; gboolean is_tiled; } MetaMonitorModeTiled; typedef struct _MetaMonitorPrivate { MetaBackend *backend; GList *outputs; GList *modes; GHashTable *mode_ids; MetaMonitorMode *preferred_mode; MetaMonitorMode *current_mode; MetaMonitorSpec *spec; MetaLogicalMonitor *logical_monitor; /* * The primary or first output for this monitor, 0 if we can't figure out. * It can be matched to a winsys_id of a MetaOutput. * * This is used as an opaque token on reconfiguration when switching from * clone to extended, to decide on what output the windows should go next * (it's an attempt to keep windows on the same monitor, and preferably on * the primary one). */ uint64_t winsys_id; char *display_name; } MetaMonitorPrivate; G_DEFINE_TYPE_WITH_PRIVATE (MetaMonitor, meta_monitor, G_TYPE_OBJECT) struct _MetaMonitorNormal { MetaMonitor parent; }; G_DEFINE_TYPE (MetaMonitorNormal, meta_monitor_normal, META_TYPE_MONITOR) struct _MetaMonitorTiled { MetaMonitor parent; MetaMonitorManager *monitor_manager; uint32_t tile_group_id; /* The tile (0, 0) output. */ MetaOutput *origin_output; /* The output enabled even when a non-tiled mode is used. */ MetaOutput *main_output; }; G_DEFINE_TYPE (MetaMonitorTiled, meta_monitor_tiled, META_TYPE_MONITOR) static void meta_monitor_mode_free (MetaMonitorMode *mode); MetaMonitorSpec * meta_monitor_spec_clone (MetaMonitorSpec *monitor_spec) { MetaMonitorSpec *new_monitor_spec; new_monitor_spec = g_new0 (MetaMonitorSpec, 1); *new_monitor_spec = (MetaMonitorSpec) { .connector = g_strdup (monitor_spec->connector), .vendor = g_strdup (monitor_spec->vendor), .product = g_strdup (monitor_spec->product), .serial = g_strdup (monitor_spec->serial), }; return new_monitor_spec; } guint meta_monitor_spec_hash (gconstpointer key) { const MetaMonitorSpec *monitor_spec = key; return (g_str_hash (monitor_spec->connector) + g_str_hash (monitor_spec->vendor) + g_str_hash (monitor_spec->product) + g_str_hash (monitor_spec->serial)); } gboolean meta_monitor_spec_equals (MetaMonitorSpec *monitor_spec, MetaMonitorSpec *other_monitor_spec) { return (g_str_equal (monitor_spec->connector, other_monitor_spec->connector) && g_str_equal (monitor_spec->vendor, other_monitor_spec->vendor) && g_str_equal (monitor_spec->product, other_monitor_spec->product) && g_str_equal (monitor_spec->serial, other_monitor_spec->serial)); } int meta_monitor_spec_compare (MetaMonitorSpec *monitor_spec_a, MetaMonitorSpec *monitor_spec_b) { int ret; ret = strcmp (monitor_spec_a->connector, monitor_spec_b->connector); if (ret != 0) return ret; ret = strcmp (monitor_spec_a->vendor, monitor_spec_b->vendor); if (ret != 0) return ret; ret = strcmp (monitor_spec_a->product, monitor_spec_b->product); if (ret != 0) return ret; return strcmp (monitor_spec_a->serial, monitor_spec_b->serial); } void meta_monitor_spec_free (MetaMonitorSpec *monitor_spec) { g_free (monitor_spec->connector); g_free (monitor_spec->vendor); g_free (monitor_spec->product); g_free (monitor_spec->serial); g_free (monitor_spec); } static const MetaOutputInfo * meta_monitor_get_main_output_info (MetaMonitor *monitor) { MetaOutput *output = meta_monitor_get_main_output (monitor); return meta_output_get_info (output); } static void meta_monitor_generate_spec (MetaMonitor *monitor) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); MetaMonitorSpec *monitor_spec; const char *vendor; const char *product; const char *serial; vendor = output_info->vendor; product = output_info->product; serial = output_info->serial; monitor_spec = g_new0 (MetaMonitorSpec, 1); *monitor_spec = (MetaMonitorSpec) { .connector = g_strdup (output_info->name), .vendor = g_strdup (vendor ? vendor : "unknown"), .product = g_strdup (product ? product : "unknown"), .serial = g_strdup (serial ? serial : "unknown"), }; priv->spec = monitor_spec; } static const double known_diagonals[] = { 12.1, 13.3, 15.6 }; static char * diagonal_to_str (double d) { unsigned int i; for (i = 0; i < G_N_ELEMENTS (known_diagonals); i++) { double delta; delta = fabs(known_diagonals[i] - d); if (delta < 0.1) return g_strdup_printf ("%0.1lf\"", known_diagonals[i]); } return g_strdup_printf ("%d\"", (int) (d + 0.5)); } static char * meta_monitor_make_display_name (MetaMonitor *monitor) { MetaBackend *backend = meta_monitor_get_backend (monitor); g_autofree char *inches = NULL; g_autofree char *vendor_name = NULL; const char *vendor = NULL; const char *product_name = NULL; int width_mm; int height_mm; meta_monitor_get_physical_dimensions (monitor, &width_mm, &height_mm); if (meta_monitor_is_laptop_panel (monitor)) return g_strdup (_("Built-in display")); if (width_mm > 0 && height_mm > 0) { if (!meta_monitor_has_aspect_as_size (monitor)) { double d = sqrt (width_mm * width_mm + height_mm * height_mm); inches = diagonal_to_str (d / 25.4); } else { product_name = meta_monitor_get_product (monitor); } } vendor = meta_monitor_get_vendor (monitor); if (vendor) { vendor_name = meta_backend_get_vendor_name (backend, vendor); if (!vendor_name) vendor_name = g_strdup (vendor); } else { if (inches != NULL) vendor_name = g_strdup (_("Unknown")); else vendor_name = g_strdup (_("Unknown Display")); } if (inches != NULL) { /**/ return g_strdup_printf (C_("This is a monitor vendor name, followed by a " "size in inches, like 'Dell 15\"'", "%s %s"), vendor_name, inches); } else if (product_name != NULL) { return g_strdup_printf (C_("This is a monitor vendor name followed by " "product/model name where size in inches " "could not be calculated, e.g. Dell U2414H", "%s %s"), vendor_name, product_name); } else { return g_strdup (vendor_name); } } MetaBackend * meta_monitor_get_backend (MetaMonitor *monitor) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); return priv->backend; } GList * meta_monitor_get_outputs (MetaMonitor *monitor) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); return priv->outputs; } MetaOutput * meta_monitor_get_main_output (MetaMonitor *monitor) { return META_MONITOR_GET_CLASS (monitor)->get_main_output (monitor); } gboolean meta_monitor_is_active (MetaMonitor *monitor) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); return !!priv->current_mode; } gboolean meta_monitor_is_primary (MetaMonitor *monitor) { MetaOutput *output; output = meta_monitor_get_main_output (monitor); return meta_output_is_primary (output); } gboolean meta_monitor_supports_underscanning (MetaMonitor *monitor) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); return output_info->supports_underscanning; } gboolean meta_monitor_supports_color_transform (MetaMonitor *monitor) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); return output_info->supports_color_transform; } gboolean meta_monitor_is_underscanning (MetaMonitor *monitor) { MetaOutput *output; output = meta_monitor_get_main_output (monitor); return meta_output_is_underscanning (output); } gboolean meta_monitor_get_max_bpc (MetaMonitor *monitor, unsigned int *max_bpc) { MetaOutput *output; output = meta_monitor_get_main_output (monitor); return meta_output_get_max_bpc (output, max_bpc); } gboolean meta_monitor_is_laptop_panel (MetaMonitor *monitor) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); switch (output_info->connector_type) { case META_CONNECTOR_TYPE_eDP: case META_CONNECTOR_TYPE_LVDS: case META_CONNECTOR_TYPE_DSI: return TRUE; default: return FALSE; } } gboolean meta_monitor_is_virtual (MetaMonitor *monitor) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); return output_info->is_virtual; } gboolean meta_monitor_is_same_as (MetaMonitor *monitor, MetaMonitor *other_monitor) { const MetaMonitorSpec *spec = meta_monitor_get_spec (monitor); const MetaMonitorSpec *other_spec = meta_monitor_get_spec (other_monitor); if ((g_strcmp0 (spec->vendor, "unknown") == 0 || g_strcmp0 (spec->product, "unknown") == 0 || g_strcmp0 (spec->serial, "unknown") == 0) && (g_strcmp0 (other_spec->vendor, "unknown") == 0 || g_strcmp0 (other_spec->product, "unknown") == 0 || g_strcmp0 (other_spec->serial, "unknown") == 0)) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); MetaMonitorPrivate *other_priv = meta_monitor_get_instance_private (other_monitor); return priv->winsys_id == other_priv->winsys_id; } if (g_strcmp0 (spec->vendor, other_spec->vendor) != 0) return FALSE; if (g_strcmp0 (spec->product, other_spec->product) != 0) return FALSE; if (g_strcmp0 (spec->serial, other_spec->serial) != 0) return FALSE; return TRUE; } void meta_monitor_get_current_resolution (MetaMonitor *monitor, int *width, int *height) { MetaMonitorMode *mode = meta_monitor_get_current_mode (monitor); *width = mode->spec.width; *height = mode->spec.height; } void meta_monitor_derive_layout (MetaMonitor *monitor, MetaRectangle *layout) { META_MONITOR_GET_CLASS (monitor)->derive_layout (monitor, layout); } void meta_monitor_get_physical_dimensions (MetaMonitor *monitor, int *width_mm, int *height_mm) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); *width_mm = output_info->width_mm; *height_mm = output_info->height_mm; } CoglSubpixelOrder meta_monitor_get_subpixel_order (MetaMonitor *monitor) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); return output_info->subpixel_order; } const char * meta_monitor_get_connector (MetaMonitor *monitor) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); return output_info->name; } const char * meta_monitor_get_vendor (MetaMonitor *monitor) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); return output_info->vendor; } const char * meta_monitor_get_product (MetaMonitor *monitor) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); return output_info->product; } const char * meta_monitor_get_serial (MetaMonitor *monitor) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); return output_info->serial; } const MetaEdidInfo * meta_monitor_get_edid_info (MetaMonitor *monitor) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); return output_info->edid_info; } const char * meta_monitor_get_edid_checksum_md5 (MetaMonitor *monitor) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); return output_info->edid_checksum_md5; } MetaConnectorType meta_monitor_get_connector_type (MetaMonitor *monitor) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); return output_info->connector_type; } MetaMonitorTransform meta_monitor_logical_to_crtc_transform (MetaMonitor *monitor, MetaMonitorTransform transform) { MetaOutput *output = meta_monitor_get_main_output (monitor); return meta_output_logical_to_crtc_transform (output, transform); } MetaMonitorTransform meta_monitor_crtc_to_logical_transform (MetaMonitor *monitor, MetaMonitorTransform transform) { MetaOutput *output = meta_monitor_get_main_output (monitor); return meta_output_crtc_to_logical_transform (output, transform); } static void meta_monitor_dispose (GObject *object) { MetaMonitor *monitor = META_MONITOR (object); MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); if (priv->outputs) { g_list_foreach (priv->outputs, (GFunc) meta_output_unset_monitor, NULL); g_list_free_full (priv->outputs, g_object_unref); priv->outputs = NULL; } G_OBJECT_CLASS (meta_monitor_parent_class)->dispose (object); } static void meta_monitor_finalize (GObject *object) { MetaMonitor *monitor = META_MONITOR (object); MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); g_hash_table_destroy (priv->mode_ids); g_list_free_full (priv->modes, (GDestroyNotify) meta_monitor_mode_free); meta_monitor_spec_free (priv->spec); g_free (priv->display_name); G_OBJECT_CLASS (meta_monitor_parent_class)->finalize (object); } static void meta_monitor_init (MetaMonitor *monitor) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); priv->mode_ids = g_hash_table_new (g_str_hash, g_str_equal); } static void meta_monitor_class_init (MetaMonitorClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); object_class->dispose = meta_monitor_dispose; object_class->finalize = meta_monitor_finalize; } static char * generate_mode_id (MetaMonitorModeSpec *monitor_mode_spec) { gboolean is_interlaced; char rate_str[G_ASCII_DTOSTR_BUF_SIZE]; is_interlaced = !!(monitor_mode_spec->flags & META_CRTC_MODE_FLAG_INTERLACE); g_ascii_formatd (rate_str, sizeof (rate_str), "%.3f", monitor_mode_spec->refresh_rate); return g_strdup_printf ("%dx%d%s@%s", monitor_mode_spec->width, monitor_mode_spec->height, is_interlaced ? "i" : "", rate_str); } static gboolean meta_monitor_add_mode (MetaMonitor *monitor, MetaMonitorMode *monitor_mode, gboolean replace) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); MetaMonitorMode *existing_mode; existing_mode = g_hash_table_lookup (priv->mode_ids, meta_monitor_mode_get_id (monitor_mode)); if (existing_mode && !replace) return FALSE; if (existing_mode) priv->modes = g_list_remove (priv->modes, existing_mode); priv->modes = g_list_append (priv->modes, monitor_mode); g_hash_table_replace (priv->mode_ids, monitor_mode->id, monitor_mode); return TRUE; } static MetaMonitorModeSpec meta_monitor_create_spec (MetaMonitor *monitor, int width, int height, MetaCrtcMode *crtc_mode) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); const MetaCrtcModeInfo *crtc_mode_info = meta_crtc_mode_get_info (crtc_mode); if (meta_monitor_transform_is_rotated (output_info->panel_orientation_transform)) { int temp = width; width = height; height = temp; } return (MetaMonitorModeSpec) { .width = width, .height = height, .refresh_rate = crtc_mode_info->refresh_rate, .flags = crtc_mode_info->flags & HANDLED_CRTC_MODE_FLAGS }; } /** * meta_monitor_get_gamma_lut_size: * @monitor: The MetaMonitor instance to retrieve the size from. * * Get the size of the look-up tables (LUTs) for the monitor. * * Retrieve the size of the LUT used to implement the encoding or decoding * transfer functions ("gamma", "degamma") for the CRTC or CRTCs that backs * this monitor. * * Returns: The number of look-up table entries possible for the monitor. It is * assumed that each CRTC of a monitor has identical gamma LUT sizes. */ size_t meta_monitor_get_gamma_lut_size (MetaMonitor *monitor) { MetaOutput *output; MetaCrtc *crtc; output = meta_monitor_get_main_output (monitor); crtc = meta_output_get_assigned_crtc (output); return meta_crtc_get_gamma_lut_size (crtc); } static gboolean set_gamma_lut (MetaMonitor *monitor, MetaMonitorMode *mode, MetaMonitorCrtcMode *monitor_crtc_mode, gpointer user_data, GError **error) { const MetaGammaLut *lut = user_data; MetaCrtc *crtc; crtc = meta_output_get_assigned_crtc (monitor_crtc_mode->output); meta_crtc_set_gamma_lut (crtc, lut); return TRUE; } /** * meta_monitor_set_gamma_lut: * * Set a new gamma look-up table (LUT) for the given monitor's CRTCs. */ void meta_monitor_set_gamma_lut (MetaMonitor *monitor, const MetaGammaLut *lut) { MetaMonitorMode *current_mode; current_mode = meta_monitor_get_current_mode (monitor); g_return_if_fail (current_mode); meta_monitor_mode_foreach_crtc (monitor, current_mode, set_gamma_lut, (gpointer) lut, NULL); } static void meta_monitor_normal_generate_modes (MetaMonitorNormal *monitor_normal) { MetaMonitor *monitor = META_MONITOR (monitor_normal); MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); MetaOutput *output; const MetaOutputInfo *output_info; MetaCrtcMode *preferred_mode; MetaCrtcModeFlag preferred_mode_flags; unsigned int i; output = meta_monitor_get_main_output (monitor); output_info = meta_output_get_info (output); preferred_mode = output_info->preferred_mode; preferred_mode_flags = meta_crtc_mode_get_info (preferred_mode)->flags; for (i = 0; i < output_info->n_modes; i++) { MetaCrtcMode *crtc_mode = output_info->modes[i]; const MetaCrtcModeInfo *crtc_mode_info = meta_crtc_mode_get_info (crtc_mode); MetaCrtc *crtc; MetaMonitorMode *mode; gboolean replace; mode = g_new0 (MetaMonitorMode, 1); mode->monitor = monitor; mode->spec = meta_monitor_create_spec (monitor, crtc_mode_info->width, crtc_mode_info->height, crtc_mode); mode->id = generate_mode_id (&mode->spec); mode->crtc_modes = g_new (MetaMonitorCrtcMode, 1); mode->crtc_modes[0] = (MetaMonitorCrtcMode) { .output = output, .crtc_mode = crtc_mode }; /* * We don't distinguish between all available mode flags, just the ones * that are configurable. We still need to pick some mode though, so * prefer ones that has the same set of flags as the preferred mode; * otherwise take the first one in the list. This guarantees that the * preferred mode is always added. */ replace = crtc_mode_info->flags == preferred_mode_flags; if (!meta_monitor_add_mode (monitor, mode, replace)) { g_assert (crtc_mode != output_info->preferred_mode); meta_monitor_mode_free (mode); continue; } if (crtc_mode == output_info->preferred_mode) monitor_priv->preferred_mode = mode; crtc = meta_output_get_assigned_crtc (output); if (crtc) { const MetaCrtcConfig *crtc_config; crtc_config = meta_crtc_get_config (crtc); if (crtc_config && crtc_mode == crtc_config->mode) monitor_priv->current_mode = mode; } } } MetaMonitorNormal * meta_monitor_normal_new (MetaMonitorManager *monitor_manager, MetaOutput *output) { MetaMonitorNormal *monitor_normal; MetaMonitor *monitor; MetaMonitorPrivate *monitor_priv; monitor_normal = g_object_new (META_TYPE_MONITOR_NORMAL, NULL); monitor = META_MONITOR (monitor_normal); monitor_priv = meta_monitor_get_instance_private (monitor); monitor_priv->backend = meta_monitor_manager_get_backend (monitor_manager); monitor_priv->outputs = g_list_append (NULL, g_object_ref (output)); meta_output_set_monitor (output, monitor); monitor_priv->winsys_id = meta_output_get_id (output); meta_monitor_generate_spec (monitor); meta_monitor_normal_generate_modes (monitor_normal); monitor_priv->display_name = meta_monitor_make_display_name (monitor); return monitor_normal; } static MetaOutput * meta_monitor_normal_get_main_output (MetaMonitor *monitor) { MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); return monitor_priv->outputs->data; } static void meta_monitor_normal_derive_layout (MetaMonitor *monitor, MetaRectangle *layout) { MetaOutput *output; MetaCrtc *crtc; const MetaCrtcConfig *crtc_config; output = meta_monitor_get_main_output (monitor); crtc = meta_output_get_assigned_crtc (output); crtc_config = meta_crtc_get_config (crtc); g_return_if_fail (crtc_config); meta_rectangle_from_graphene_rect (&crtc_config->layout, META_ROUNDING_STRATEGY_ROUND, layout); } static gboolean meta_monitor_normal_get_suggested_position (MetaMonitor *monitor, int *x, int *y) { const MetaOutputInfo *output_info = meta_monitor_get_main_output_info (monitor); if (!output_info->hotplug_mode_update) return FALSE; if (output_info->suggested_x < 0 && output_info->suggested_y < 0) return FALSE; if (x) *x = output_info->suggested_x; if (y) *y = output_info->suggested_y; return TRUE; } static void meta_monitor_normal_calculate_crtc_pos (MetaMonitor *monitor, MetaMonitorMode *monitor_mode, MetaOutput *output, MetaMonitorTransform crtc_transform, int *out_x, int *out_y) { *out_x = 0; *out_y = 0; } static void meta_monitor_normal_init (MetaMonitorNormal *monitor) { } static void meta_monitor_normal_class_init (MetaMonitorNormalClass *klass) { MetaMonitorClass *monitor_class = META_MONITOR_CLASS (klass); monitor_class->get_main_output = meta_monitor_normal_get_main_output; monitor_class->derive_layout = meta_monitor_normal_derive_layout; monitor_class->calculate_crtc_pos = meta_monitor_normal_calculate_crtc_pos; monitor_class->get_suggested_position = meta_monitor_normal_get_suggested_position; } uint32_t meta_monitor_tiled_get_tile_group_id (MetaMonitorTiled *monitor_tiled) { return monitor_tiled->tile_group_id; } gboolean meta_monitor_get_suggested_position (MetaMonitor *monitor, int *x, int *y) { return META_MONITOR_GET_CLASS (monitor)->get_suggested_position (monitor, x, y); } static void add_tiled_monitor_outputs (MetaGpu *gpu, MetaMonitorTiled *monitor_tiled) { MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (META_MONITOR (monitor_tiled)); GList *outputs; GList *l; outputs = meta_gpu_get_outputs (gpu); for (l = outputs; l; l = l->next) { MetaOutput *output = l->data; const MetaOutputInfo *output_info = meta_output_get_info (output); const MetaOutputInfo *origin_output_info; if (output_info->tile_info.group_id != monitor_tiled->tile_group_id) continue; origin_output_info = meta_output_get_info (monitor_tiled->origin_output); g_warn_if_fail (output_info->subpixel_order == origin_output_info->subpixel_order); monitor_priv->outputs = g_list_append (monitor_priv->outputs, g_object_ref (output)); meta_output_set_monitor (output, META_MONITOR (monitor_tiled)); } } static void calculate_tile_coordinate (MetaMonitor *monitor, MetaOutput *output, MetaMonitorTransform crtc_transform, int *out_x, int *out_y) { MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); const MetaOutputInfo *output_info = meta_output_get_info (output); GList *l; int x = 0; int y = 0; for (l = monitor_priv->outputs; l; l = l->next) { const MetaOutputInfo *other_output_info = meta_output_get_info (l->data); switch (crtc_transform) { case META_MONITOR_TRANSFORM_NORMAL: case META_MONITOR_TRANSFORM_FLIPPED: if ((other_output_info->tile_info.loc_v_tile == output_info->tile_info.loc_v_tile) && (other_output_info->tile_info.loc_h_tile < output_info->tile_info.loc_h_tile)) x += other_output_info->tile_info.tile_w; if ((other_output_info->tile_info.loc_h_tile == output_info->tile_info.loc_h_tile) && (other_output_info->tile_info.loc_v_tile < output_info->tile_info.loc_v_tile)) y += other_output_info->tile_info.tile_h; break; case META_MONITOR_TRANSFORM_180: case META_MONITOR_TRANSFORM_FLIPPED_180: if ((other_output_info->tile_info.loc_v_tile == output_info->tile_info.loc_v_tile) && (other_output_info->tile_info.loc_h_tile > output_info->tile_info.loc_h_tile)) x += other_output_info->tile_info.tile_w; if ((other_output_info->tile_info.loc_h_tile == output_info->tile_info.loc_h_tile) && (other_output_info->tile_info.loc_v_tile > output_info->tile_info.loc_v_tile)) y += other_output_info->tile_info.tile_h; break; case META_MONITOR_TRANSFORM_270: case META_MONITOR_TRANSFORM_FLIPPED_270: if ((other_output_info->tile_info.loc_v_tile == output_info->tile_info.loc_v_tile) && (other_output_info->tile_info.loc_h_tile > output_info->tile_info.loc_h_tile)) y += other_output_info->tile_info.tile_w; if ((other_output_info->tile_info.loc_h_tile == output_info->tile_info.loc_h_tile) && (other_output_info->tile_info.loc_v_tile > output_info->tile_info.loc_v_tile)) x += other_output_info->tile_info.tile_h; break; case META_MONITOR_TRANSFORM_90: case META_MONITOR_TRANSFORM_FLIPPED_90: if ((other_output_info->tile_info.loc_v_tile == output_info->tile_info.loc_v_tile) && (other_output_info->tile_info.loc_h_tile < output_info->tile_info.loc_h_tile)) y += other_output_info->tile_info.tile_w; if ((other_output_info->tile_info.loc_h_tile == output_info->tile_info.loc_h_tile) && (other_output_info->tile_info.loc_v_tile < output_info->tile_info.loc_v_tile)) x += other_output_info->tile_info.tile_h; break; } } *out_x = x; *out_y = y; } static void meta_monitor_tiled_calculate_tiled_size (MetaMonitor *monitor, int *out_width, int *out_height) { MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); GList *l; int width; int height; width = 0; height = 0; for (l = monitor_priv->outputs; l; l = l->next) { const MetaOutputInfo *output_info = meta_output_get_info (l->data); if (output_info->tile_info.loc_v_tile == 0) width += output_info->tile_info.tile_w; if (output_info->tile_info.loc_h_tile == 0) height += output_info->tile_info.tile_h; } *out_width = width; *out_height = height; } static gboolean is_monitor_mode_assigned (MetaMonitor *monitor, MetaMonitorMode *mode) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); GList *l; int i; for (l = priv->outputs, i = 0; l; l = l->next, i++) { MetaOutput *output = l->data; MetaMonitorCrtcMode *monitor_crtc_mode = &mode->crtc_modes[i]; MetaCrtc *crtc; const MetaCrtcConfig *crtc_config; crtc = meta_output_get_assigned_crtc (output); crtc_config = crtc ? meta_crtc_get_config (crtc) : NULL; if (monitor_crtc_mode->crtc_mode && (!crtc || !crtc_config || crtc_config->mode != monitor_crtc_mode->crtc_mode)) return FALSE; else if (!monitor_crtc_mode->crtc_mode && crtc) return FALSE; } return TRUE; } static gboolean is_crtc_mode_tiled (MetaOutput *output, MetaCrtcMode *crtc_mode) { const MetaOutputInfo *output_info = meta_output_get_info (output); const MetaCrtcModeInfo *crtc_mode_info = meta_crtc_mode_get_info (crtc_mode); return (crtc_mode_info->width == (int) output_info->tile_info.tile_w && crtc_mode_info->height == (int) output_info->tile_info.tile_h); } static MetaCrtcMode * find_tiled_crtc_mode (MetaOutput *output, MetaCrtcMode *reference_crtc_mode) { const MetaOutputInfo *output_info = meta_output_get_info (output); const MetaCrtcModeInfo *reference_crtc_mode_info = meta_crtc_mode_get_info (reference_crtc_mode); MetaCrtcMode *crtc_mode; unsigned int i; crtc_mode = output_info->preferred_mode; if (is_crtc_mode_tiled (output, crtc_mode)) return crtc_mode; for (i = 0; i < output_info->n_modes; i++) { const MetaCrtcModeInfo *crtc_mode_info; crtc_mode = output_info->modes[i]; crtc_mode_info = meta_crtc_mode_get_info (crtc_mode); if (!is_crtc_mode_tiled (output, crtc_mode)) continue; if (crtc_mode_info->refresh_rate != reference_crtc_mode_info->refresh_rate) continue; if (crtc_mode_info->flags != reference_crtc_mode_info->flags) continue; return crtc_mode; } return NULL; } static MetaMonitorMode * create_tiled_monitor_mode (MetaMonitorTiled *monitor_tiled, MetaCrtcMode *reference_crtc_mode, gboolean *out_is_preferred) { MetaMonitor *monitor = META_MONITOR (monitor_tiled); MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); MetaMonitorModeTiled *mode; int width, height; GList *l; unsigned int i; gboolean is_preferred = TRUE; mode = g_new0 (MetaMonitorModeTiled, 1); mode->is_tiled = TRUE; meta_monitor_tiled_calculate_tiled_size (monitor, &width, &height); mode->parent.monitor = monitor; mode->parent.spec = meta_monitor_create_spec (monitor, width, height, reference_crtc_mode); mode->parent.id = generate_mode_id (&mode->parent.spec); mode->parent.crtc_modes = g_new0 (MetaMonitorCrtcMode, g_list_length (monitor_priv->outputs)); for (l = monitor_priv->outputs, i = 0; l; l = l->next, i++) { MetaOutput *output = l->data; const MetaOutputInfo *output_info = meta_output_get_info (output); MetaCrtcMode *tiled_crtc_mode; tiled_crtc_mode = find_tiled_crtc_mode (output, reference_crtc_mode); if (!tiled_crtc_mode) { g_warning ("No tiled mode found on %s", meta_output_get_name (output)); meta_monitor_mode_free ((MetaMonitorMode *) mode); return NULL; } mode->parent.crtc_modes[i] = (MetaMonitorCrtcMode) { .output = output, .crtc_mode = tiled_crtc_mode }; is_preferred = (is_preferred && tiled_crtc_mode == output_info->preferred_mode); } *out_is_preferred = is_preferred; return (MetaMonitorMode *) mode; } static void generate_tiled_monitor_modes (MetaMonitorTiled *monitor_tiled) { MetaMonitor *monitor = META_MONITOR (monitor_tiled); MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); MetaOutput *main_output; const MetaOutputInfo *main_output_info; GList *tiled_modes = NULL; unsigned int i; MetaMonitorMode *best_mode = NULL; GList *l; main_output = meta_monitor_get_main_output (META_MONITOR (monitor_tiled)); main_output_info = meta_output_get_info (main_output); for (i = 0; i < main_output_info->n_modes; i++) { MetaCrtcMode *reference_crtc_mode = main_output_info->modes[i]; MetaMonitorMode *mode; gboolean is_preferred; if (!is_crtc_mode_tiled (main_output, reference_crtc_mode)) continue; mode = create_tiled_monitor_mode (monitor_tiled, reference_crtc_mode, &is_preferred); if (!mode) continue; tiled_modes = g_list_append (tiled_modes, mode); if (is_monitor_mode_assigned (monitor, mode)) monitor_priv->current_mode = mode; if (is_preferred) monitor_priv->preferred_mode = mode; } while ((l = tiled_modes)) { MetaMonitorMode *mode = l->data; tiled_modes = g_list_remove_link (tiled_modes, l); if (!meta_monitor_add_mode (monitor, mode, FALSE)) { meta_monitor_mode_free (mode); continue; } if (!monitor_priv->preferred_mode) { if (!best_mode || mode->spec.refresh_rate > best_mode->spec.refresh_rate) best_mode = mode; } } if (best_mode) monitor_priv->preferred_mode = best_mode; } static MetaMonitorMode * create_untiled_monitor_mode (MetaMonitorTiled *monitor_tiled, MetaOutput *main_output, MetaCrtcMode *crtc_mode) { MetaMonitor *monitor = META_MONITOR (monitor_tiled); MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); MetaMonitorModeTiled *mode; const MetaCrtcModeInfo *crtc_mode_info; GList *l; int i; if (is_crtc_mode_tiled (main_output, crtc_mode)) return NULL; mode = g_new0 (MetaMonitorModeTiled, 1); mode->is_tiled = FALSE; mode->parent.monitor = monitor; crtc_mode_info = meta_crtc_mode_get_info (crtc_mode); mode->parent.spec = meta_monitor_create_spec (monitor, crtc_mode_info->width, crtc_mode_info->height, crtc_mode); mode->parent.id = generate_mode_id (&mode->parent.spec); mode->parent.crtc_modes = g_new0 (MetaMonitorCrtcMode, g_list_length (monitor_priv->outputs)); for (l = monitor_priv->outputs, i = 0; l; l = l->next, i++) { MetaOutput *output = l->data; if (output == main_output) { mode->parent.crtc_modes[i] = (MetaMonitorCrtcMode) { .output = output, .crtc_mode = crtc_mode }; } else { mode->parent.crtc_modes[i] = (MetaMonitorCrtcMode) { .output = output, .crtc_mode = NULL }; } } return &mode->parent; } static int count_untiled_crtc_modes (MetaOutput *output) { const MetaOutputInfo *output_info = meta_output_get_info (output); int count; unsigned int i; count = 0; for (i = 0; i < output_info->n_modes; i++) { MetaCrtcMode *crtc_mode = output_info->modes[i]; if (!is_crtc_mode_tiled (output, crtc_mode)) count++; } return count; } static MetaOutput * find_untiled_output (MetaMonitorTiled *monitor_tiled) { MetaMonitor *monitor = META_MONITOR (monitor_tiled); MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); MetaOutput *best_output; int best_untiled_crtc_mode_count; GList *l; best_output = monitor_tiled->origin_output; best_untiled_crtc_mode_count = count_untiled_crtc_modes (monitor_tiled->origin_output); for (l = monitor_priv->outputs; l; l = l->next) { MetaOutput *output = l->data; int untiled_crtc_mode_count; if (output == monitor_tiled->origin_output) continue; untiled_crtc_mode_count = count_untiled_crtc_modes (output); if (untiled_crtc_mode_count > best_untiled_crtc_mode_count) { best_untiled_crtc_mode_count = untiled_crtc_mode_count; best_output = output; } } return best_output; } static void generate_untiled_monitor_modes (MetaMonitorTiled *monitor_tiled) { MetaMonitor *monitor = META_MONITOR (monitor_tiled); MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); MetaOutput *main_output; const MetaOutputInfo *main_output_info; unsigned int i; main_output = meta_monitor_get_main_output (monitor); main_output_info = meta_output_get_info (main_output); for (i = 0; i < main_output_info->n_modes; i++) { MetaCrtcMode *crtc_mode = main_output_info->modes[i]; MetaMonitorMode *mode; mode = create_untiled_monitor_mode (monitor_tiled, main_output, crtc_mode); if (!mode) continue; if (!meta_monitor_add_mode (monitor, mode, FALSE)) { meta_monitor_mode_free (mode); continue; } if (is_monitor_mode_assigned (monitor, mode)) { g_assert (!monitor_priv->current_mode); monitor_priv->current_mode = mode; } if (!monitor_priv->preferred_mode && crtc_mode == main_output_info->preferred_mode) monitor_priv->preferred_mode = mode; } } static MetaMonitorMode * find_best_mode (MetaMonitor *monitor) { MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); MetaMonitorMode *best_mode = NULL; GList *l; for (l = monitor_priv->modes; l; l = l->next) { MetaMonitorMode *mode = l->data; int area, best_area; if (!best_mode) { best_mode = mode; continue; } area = mode->spec.width * mode->spec.height; best_area = best_mode->spec.width * best_mode->spec.height; if (area > best_area) { best_mode = mode; continue; } if (mode->spec.refresh_rate > best_mode->spec.refresh_rate) { best_mode = mode; continue; } } return best_mode; } static void meta_monitor_tiled_generate_modes (MetaMonitorTiled *monitor_tiled) { MetaMonitor *monitor = META_MONITOR (monitor_tiled); MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); /* * Tiled monitors may look a bit different from each other, depending on the * monitor itself, the driver, etc. * * On some, the tiled modes will be the preferred CRTC modes, and running * untiled is done by only enabling (0, 0) tile. In this case, things are * pretty straight forward. * * Other times a monitor may have some bogus mode preferred on the main tile, * and an untiled mode preferred on the non-main tile, and there seems to be * no guarantee that the (0, 0) tile is the one that should drive the * non-tiled mode. * * To handle both these cases, the following hueristics are implemented: * * 1) Find all the tiled CRTC modes of the (0, 0) tile, and create tiled * monitor modes for all tiles based on these. * 2) If there is any tiled monitor mode combination where all CRTC modes * are the preferred ones, that one is marked as preferred. * 3) If there is no preferred mode determined so far, assume the tiled * monitor mode with the highest refresh rate is preferred. * 4) Find the tile with highest number of untiled CRTC modes available, * assume this is the one driving the monitor in untiled mode, and * create monitor modes for all untiled CRTC modes of that tile. If * there is still no preferred mode, set any untiled mode as preferred * if the CRTC mode is marked as such. * 5) If at this point there is still no preferred mode, just pick the one * with the highest number of pixels and highest refresh rate. * * Note that this ignores the preference if the preference is a non-tiled * mode. This seems to be the case on some systems, where the user tends to * manually set up the tiled mode anyway. */ generate_tiled_monitor_modes (monitor_tiled); if (!monitor_priv->preferred_mode) g_warning ("Tiled monitor on %s didn't have any tiled modes", monitor_priv->spec->connector); generate_untiled_monitor_modes (monitor_tiled); if (!monitor_priv->preferred_mode) { g_warning ("Tiled monitor on %s didn't have a valid preferred mode", monitor_priv->spec->connector); monitor_priv->preferred_mode = find_best_mode (monitor); } } MetaMonitorTiled * meta_monitor_tiled_new (MetaMonitorManager *monitor_manager, MetaOutput *output) { const MetaOutputInfo *output_info = meta_output_get_info (output); MetaMonitorTiled *monitor_tiled; MetaMonitor *monitor; MetaMonitorPrivate *monitor_priv; monitor_tiled = g_object_new (META_TYPE_MONITOR_TILED, NULL); monitor = META_MONITOR (monitor_tiled); monitor_priv = meta_monitor_get_instance_private (monitor); monitor_priv->backend = meta_monitor_manager_get_backend (monitor_manager); monitor_tiled->tile_group_id = output_info->tile_info.group_id; monitor_priv->winsys_id = meta_output_get_id (output); monitor_tiled->origin_output = output; add_tiled_monitor_outputs (meta_output_get_gpu (output), monitor_tiled); monitor_tiled->main_output = find_untiled_output (monitor_tiled); meta_monitor_generate_spec (monitor); monitor_tiled->monitor_manager = monitor_manager; meta_monitor_manager_tiled_monitor_added (monitor_manager, META_MONITOR (monitor_tiled)); meta_monitor_tiled_generate_modes (monitor_tiled); monitor_priv->display_name = meta_monitor_make_display_name (monitor); return monitor_tiled; } static MetaOutput * meta_monitor_tiled_get_main_output (MetaMonitor *monitor) { MetaMonitorTiled *monitor_tiled = META_MONITOR_TILED (monitor); return monitor_tiled->main_output; } static void meta_monitor_tiled_derive_layout (MetaMonitor *monitor, MetaRectangle *layout) { MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); GList *l; float min_x, min_y, max_x, max_y; min_x = FLT_MAX; min_y = FLT_MAX; max_x = 0.0; max_y = 0.0; for (l = monitor_priv->outputs; l; l = l->next) { MetaOutput *output = l->data; MetaCrtc *crtc; const MetaCrtcConfig *crtc_config; const graphene_rect_t *crtc_layout; crtc = meta_output_get_assigned_crtc (output); if (!crtc) continue; crtc_config = meta_crtc_get_config (crtc); g_return_if_fail (crtc_config); crtc_layout = &crtc_config->layout; min_x = MIN (crtc_layout->origin.x, min_x); min_y = MIN (crtc_layout->origin.y, min_y); max_x = MAX (crtc_layout->origin.x + crtc_layout->size.width, max_x); max_y = MAX (crtc_layout->origin.y + crtc_layout->size.height, max_y); } *layout = (MetaRectangle) { .x = roundf (min_x), .y = roundf (min_y), .width = roundf (max_x - min_x), .height = roundf (max_y - min_y) }; } static gboolean meta_monitor_tiled_get_suggested_position (MetaMonitor *monitor, int *x, int *y) { return FALSE; } static void meta_monitor_tiled_calculate_crtc_pos (MetaMonitor *monitor, MetaMonitorMode *monitor_mode, MetaOutput *output, MetaMonitorTransform crtc_transform, int *out_x, int *out_y) { MetaMonitorModeTiled *mode_tiled = (MetaMonitorModeTiled *) monitor_mode; if (mode_tiled->is_tiled) { calculate_tile_coordinate (monitor, output, crtc_transform, out_x, out_y); } else { *out_x = 0; *out_y = 0; } } static void meta_monitor_tiled_finalize (GObject *object) { MetaMonitorTiled *monitor_tiled = META_MONITOR_TILED (object); meta_monitor_manager_tiled_monitor_removed (monitor_tiled->monitor_manager, META_MONITOR (monitor_tiled)); G_OBJECT_CLASS (meta_monitor_tiled_parent_class)->finalize (object); } static void meta_monitor_tiled_init (MetaMonitorTiled *monitor) { } static void meta_monitor_tiled_class_init (MetaMonitorTiledClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); MetaMonitorClass *monitor_class = META_MONITOR_CLASS (klass); object_class->finalize = meta_monitor_tiled_finalize; monitor_class->get_main_output = meta_monitor_tiled_get_main_output; monitor_class->derive_layout = meta_monitor_tiled_derive_layout; monitor_class->calculate_crtc_pos = meta_monitor_tiled_calculate_crtc_pos; monitor_class->get_suggested_position = meta_monitor_tiled_get_suggested_position; } static void meta_monitor_mode_free (MetaMonitorMode *monitor_mode) { g_free (monitor_mode->id); g_free (monitor_mode->crtc_modes); g_free (monitor_mode); } MetaMonitorSpec * meta_monitor_get_spec (MetaMonitor *monitor) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); return priv->spec; } MetaLogicalMonitor * meta_monitor_get_logical_monitor (MetaMonitor *monitor) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); return priv->logical_monitor; } MetaMonitorMode * meta_monitor_get_mode_from_id (MetaMonitor *monitor, const char *monitor_mode_id) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); return g_hash_table_lookup (priv->mode_ids, monitor_mode_id); } gboolean meta_monitor_mode_spec_has_similar_size (MetaMonitorModeSpec *monitor_mode_spec, MetaMonitorModeSpec *other_monitor_mode_spec) { const float target_ratio = 1.0; /* The a size difference of 15% means e.g. 4K modes matches other 4K modes, * FHD (2K) modes other FHD modes, and HD modes other HD modes, but not each * other. */ const float epsilon = 0.15; return G_APPROX_VALUE (((float) monitor_mode_spec->width / other_monitor_mode_spec->width) * ((float) monitor_mode_spec->height / other_monitor_mode_spec->height), target_ratio, epsilon); } static gboolean meta_monitor_mode_spec_equals (MetaMonitorModeSpec *monitor_mode_spec, MetaMonitorModeSpec *other_monitor_mode_spec) { return (monitor_mode_spec->width == other_monitor_mode_spec->width && monitor_mode_spec->height == other_monitor_mode_spec->height && ABS (monitor_mode_spec->refresh_rate - other_monitor_mode_spec->refresh_rate) < MAXIMUM_REFRESH_RATE_DIFF && monitor_mode_spec->flags == other_monitor_mode_spec->flags); } MetaMonitorMode * meta_monitor_get_mode_from_spec (MetaMonitor *monitor, MetaMonitorModeSpec *monitor_mode_spec) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); GList *l; for (l = priv->modes; l; l = l->next) { MetaMonitorMode *monitor_mode = l->data; if (meta_monitor_mode_spec_equals (monitor_mode_spec, &monitor_mode->spec)) return monitor_mode; } return NULL; } MetaMonitorMode * meta_monitor_get_preferred_mode (MetaMonitor *monitor) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); return priv->preferred_mode; } MetaMonitorMode * meta_monitor_get_current_mode (MetaMonitor *monitor) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); return priv->current_mode; } static gboolean is_current_mode_known (MetaMonitor *monitor) { MetaOutput *output; MetaCrtc *crtc; output = meta_monitor_get_main_output (monitor); crtc = meta_output_get_assigned_crtc (output); return (meta_monitor_is_active (monitor) == (crtc && meta_crtc_get_config (crtc))); } void meta_monitor_derive_current_mode (MetaMonitor *monitor) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); MetaMonitorMode *current_mode = NULL; GList *l; for (l = priv->modes; l; l = l->next) { MetaMonitorMode *mode = l->data; if (is_monitor_mode_assigned (monitor, mode)) { current_mode = mode; break; } } priv->current_mode = current_mode; g_warn_if_fail (is_current_mode_known (monitor)); } void meta_monitor_set_current_mode (MetaMonitor *monitor, MetaMonitorMode *mode) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); priv->current_mode = mode; } GList * meta_monitor_get_modes (MetaMonitor *monitor) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); return priv->modes; } void meta_monitor_calculate_crtc_pos (MetaMonitor *monitor, MetaMonitorMode *monitor_mode, MetaOutput *output, MetaMonitorTransform crtc_transform, int *out_x, int *out_y) { META_MONITOR_GET_CLASS (monitor)->calculate_crtc_pos (monitor, monitor_mode, output, crtc_transform, out_x, out_y); } /* * We choose a default scale factor such that the UI is as big * as it would be on a display with this DPI without scaling. * * Through experiementing, a value of 135 has been found to best * line up with the UI size chosen as default by other operating * systems (macOS, Android, iOS, Windows) and the community-decided * "known-good" scale factors for GNOME for various mobile devices * such as phones, tablets, and laptops */ #define UI_SCALE_MOBILE_TARGET_DPI 135 /* * People tend to sit further away from larger stationary displays * than they do from mobile displays, so a UI of an identical size to * a mobile device has a smaller angular size and thus seems to be too * small. * * The largest mainstream laptops have screens ~17in, and HiDPI external * monitors start at ~23in, so 20in is a good boundary point */ #define UI_SCALE_LARGE_TARGET_DPI 110 #define UI_SCALE_LARGE_MIN_SIZE_INCHES 20 static float calculate_scale (MetaMonitor *monitor, MetaMonitorMode *monitor_mode, MetaMonitorScalesConstraint constraints) { int width_px, height_px, width_mm, height_mm; float diag_inches; g_autofree float *scales = NULL; int n_scales; float best_scale, best_dpi; int target_dpi; const float scale_epsilon = 0.2; /* * Somebody encoded the aspect ratio (16/9 or 16/10) instead of the physical * size. We'll be unable to select an appropriate scale factor. */ if (meta_monitor_has_aspect_as_size (monitor)) return 1.0; /* Compute display's diagonal size in inches */ meta_monitor_get_physical_dimensions (monitor, &width_mm, &height_mm); if (width_mm == 0 || height_mm == 0) return 1.0; diag_inches = sqrtf (width_mm * width_mm + height_mm * height_mm) / 25.4; /* Pick the appropriate target DPI based on screen size */ if (diag_inches < UI_SCALE_LARGE_MIN_SIZE_INCHES) target_dpi = UI_SCALE_MOBILE_TARGET_DPI; else target_dpi = UI_SCALE_LARGE_TARGET_DPI; meta_monitor_mode_get_resolution (monitor_mode, &width_px, &height_px); /* We'll only be considering the supported scale factors */ scales = meta_monitor_calculate_supported_scales (monitor, monitor_mode, META_MONITOR_SCALES_CONSTRAINT_NONE, &n_scales); best_scale = scales[0]; for (int i = 0; i < n_scales; i++) { float width_scaled, height_scaled, diag_scaled, dpi; /* * Compute the logical resolution of the display for this * scale factor */ width_scaled = (float) width_px / scales[i]; height_scaled = (float) height_px / scales[i]; /* Compute the number of logical pixels across the display's diagonal */ diag_scaled = sqrtf (width_scaled * width_scaled + height_scaled * height_scaled); /* * Computes the display's logical DPI - the number of logical pixels * per inch on the display's diagonal */ dpi = diag_scaled / diag_inches; /* Pick the scale factor whose logical DPI is closest to the optimal value */ if (i == 0 || fabsf (dpi - target_dpi) < fabsf (best_dpi - target_dpi)) { best_scale = scales[i]; best_dpi = dpi; } } if (constraints & META_MONITOR_SCALES_CONSTRAINT_NO_FRAC) { best_scale = floorf (MIN (scales[n_scales - 1], best_scale + 0.25 + scale_epsilon)); } return best_scale; } float meta_monitor_calculate_mode_scale (MetaMonitor *monitor, MetaMonitorMode *monitor_mode, MetaMonitorScalesConstraint constraints) { MetaBackend *backend = meta_monitor_get_backend (monitor); MetaSettings *settings = meta_backend_get_settings (backend); int global_scaling_factor; if (meta_settings_get_global_scaling_factor (settings, &global_scaling_factor)) return global_scaling_factor; return calculate_scale (monitor, monitor_mode, constraints); } static gboolean is_logical_size_large_enough (int width, int height) { return width * height >= MINIMUM_LOGICAL_AREA; } static gboolean is_scale_valid_for_size (float width, float height, float scale) { if (scale < MINIMUM_SCALE_FACTOR || scale > MAXIMUM_SCALE_FACTOR) return FALSE; return is_logical_size_large_enough (floorf (width / scale), floorf (height / scale)); } gboolean meta_monitor_mode_should_be_advertised (MetaMonitorMode *monitor_mode) { MetaMonitorMode *preferred_mode; g_return_val_if_fail (monitor_mode != NULL, FALSE); preferred_mode = meta_monitor_get_preferred_mode (monitor_mode->monitor); if (monitor_mode->spec.width == preferred_mode->spec.width && monitor_mode->spec.height == preferred_mode->spec.height) return TRUE; return is_logical_size_large_enough (monitor_mode->spec.width, monitor_mode->spec.height); } static float get_closest_scale_factor_for_resolution (float width, float height, float scale, float threshold) { unsigned int i, j; float scaled_h; float scaled_w; float best_scale; int base_scaled_w; gboolean found_one; best_scale = 0; if (!is_scale_valid_for_size (width, height, scale)) return best_scale; if (fmodf (width, scale) == 0.0 && fmodf (height, scale) == 0.0) return scale; i = 0; found_one = FALSE; base_scaled_w = floorf (width / scale); do { for (j = 0; j < 2; j++) { float current_scale; int offset = i * (j ? 1 : -1); scaled_w = base_scaled_w + offset; current_scale = width / scaled_w; scaled_h = height / current_scale; if (current_scale >= scale + threshold || current_scale <= scale - threshold || current_scale < MINIMUM_SCALE_FACTOR || current_scale > MAXIMUM_SCALE_FACTOR) { return best_scale; } if (floorf (scaled_h) == scaled_h) { found_one = TRUE; if (fabsf (current_scale - scale) < fabsf (best_scale - scale)) best_scale = current_scale; } } i++; } while (!found_one); return best_scale; } float * meta_monitor_calculate_supported_scales (MetaMonitor *monitor, MetaMonitorMode *monitor_mode, MetaMonitorScalesConstraint constraints, int *n_supported_scales) { unsigned int i, j; int width, height; GArray *supported_scales; supported_scales = g_array_new (FALSE, FALSE, sizeof (float)); meta_monitor_mode_get_resolution (monitor_mode, &width, &height); for (i = floorf (MINIMUM_SCALE_FACTOR); i <= ceilf (MAXIMUM_SCALE_FACTOR); i++) { if (constraints & META_MONITOR_SCALES_CONSTRAINT_NO_FRAC) { if (is_scale_valid_for_size (width, height, i)) { float scale = i; g_array_append_val (supported_scales, scale); } } else { float max_bound; if (i == floorf (MINIMUM_SCALE_FACTOR) || i == ceilf (MAXIMUM_SCALE_FACTOR)) max_bound = SCALE_FACTORS_STEPS; else max_bound = SCALE_FACTORS_STEPS / 2.0; for (j = 0; j < SCALE_FACTORS_PER_INTEGER; j++) { float scale; float scale_value = i + j * SCALE_FACTORS_STEPS; scale = get_closest_scale_factor_for_resolution (width, height, scale_value, max_bound); if (scale > 0.0) g_array_append_val (supported_scales, scale); } } } if (supported_scales->len == 0) { float fallback_scale; fallback_scale = 1.0; g_array_append_val (supported_scales, fallback_scale); } *n_supported_scales = supported_scales->len; return (float *) g_array_free (supported_scales, FALSE); } MetaMonitorModeSpec * meta_monitor_mode_get_spec (MetaMonitorMode *monitor_mode) { return &monitor_mode->spec; } const char * meta_monitor_mode_get_id (MetaMonitorMode *monitor_mode) { return monitor_mode->id; } void meta_monitor_mode_get_resolution (MetaMonitorMode *monitor_mode, int *width, int *height) { *width = monitor_mode->spec.width; *height = monitor_mode->spec.height; } float meta_monitor_mode_get_refresh_rate (MetaMonitorMode *monitor_mode) { return monitor_mode->spec.refresh_rate; } MetaCrtcModeFlag meta_monitor_mode_get_flags (MetaMonitorMode *monitor_mode) { return monitor_mode->spec.flags; } gboolean meta_monitor_mode_foreach_crtc (MetaMonitor *monitor, MetaMonitorMode *mode, MetaMonitorModeFunc func, gpointer user_data, GError **error) { MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); GList *l; int i; for (l = monitor_priv->outputs, i = 0; l; l = l->next, i++) { MetaMonitorCrtcMode *monitor_crtc_mode = &mode->crtc_modes[i]; if (!monitor_crtc_mode->crtc_mode) continue; if (!func (monitor, mode, monitor_crtc_mode, user_data, error)) return FALSE; } return TRUE; } gboolean meta_monitor_mode_foreach_output (MetaMonitor *monitor, MetaMonitorMode *mode, MetaMonitorModeFunc func, gpointer user_data, GError **error) { MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); GList *l; int i; for (l = monitor_priv->outputs, i = 0; l; l = l->next, i++) { MetaMonitorCrtcMode *monitor_crtc_mode = &mode->crtc_modes[i]; if (!func (monitor, mode, monitor_crtc_mode, user_data, error)) return FALSE; } return TRUE; } MetaMonitorCrtcMode * meta_monitor_get_crtc_mode_for_output (MetaMonitor *monitor, MetaMonitorMode *mode, MetaOutput *output) { MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); GList *l; int i; for (l = monitor_priv->outputs, i = 0; l; l = l->next, i++) { MetaMonitorCrtcMode *monitor_crtc_mode = &mode->crtc_modes[i]; if (monitor_crtc_mode->output == output) return monitor_crtc_mode; } g_warn_if_reached (); return NULL; } const char * meta_monitor_get_display_name (MetaMonitor *monitor) { MetaMonitorPrivate *monitor_priv = meta_monitor_get_instance_private (monitor); return monitor_priv->display_name; } void meta_monitor_set_logical_monitor (MetaMonitor *monitor, MetaLogicalMonitor *logical_monitor) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); priv->logical_monitor = logical_monitor; } static MetaOutput * maybe_get_privacy_screen_output (MetaMonitor *monitor) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); if (priv->outputs && priv->outputs->next) return NULL; return meta_monitor_get_main_output (monitor); } MetaPrivacyScreenState meta_monitor_get_privacy_screen_state (MetaMonitor *monitor) { MetaOutput *output; output = maybe_get_privacy_screen_output (monitor); if (!output) return META_PRIVACY_SCREEN_UNAVAILABLE; return meta_output_get_privacy_screen_state (output); } gboolean meta_monitor_set_privacy_screen_enabled (MetaMonitor *monitor, gboolean enabled, GError **error) { MetaOutput *output; output = maybe_get_privacy_screen_output (monitor); if (!output) { g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "The privacy screen is not supported by this output"); return FALSE; } return meta_output_set_privacy_screen_enabled (output, enabled, error); } gboolean meta_monitor_set_color_space (MetaMonitor *monitor, MetaOutputColorspace color_space, GError **error) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); GList *l; for (l = priv->outputs; l; l = l->next) { MetaOutput *output = l->data; if (!meta_output_is_color_space_supported (output, color_space)) { g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "The color space is not supported by this monitor"); return FALSE; } } for (l = priv->outputs; l; l = l->next) { MetaOutput *output = l->data; meta_output_set_color_space (output, color_space); } return TRUE; } gboolean meta_monitor_set_hdr_metadata (MetaMonitor *monitor, MetaOutputHdrMetadata *metadata, GError **error) { MetaMonitorPrivate *priv = meta_monitor_get_instance_private (monitor); GList *l; for (l = priv->outputs; l; l = l->next) { MetaOutput *output = l->data; if (!meta_output_is_hdr_metadata_supported (output, metadata->eotf)) { g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED, "HDR metadata is not supported by this monitor"); return FALSE; } } for (l = priv->outputs; l; l = l->next) { MetaOutput *output = l->data; meta_output_set_hdr_metadata (output, metadata); } return TRUE; }