a4ba38ee78
Move code dealing with Xrandr MetaCrtcs and related functionality to its own file. Eventually, MetaCrtcCrtc should be introduced, based on MetaCrtc, and this commit is in preparation for that. https://bugzilla.gnome.org/show_bug.cgi?id=785381
203 lines
6.6 KiB
C
203 lines
6.6 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
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* Copyright (C) 2001, 2002 Havoc Pennington
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* Copyright (C) 2001, 2002 Havoc Pennington
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* Copyright (C) 2002, 2003 Red Hat Inc.
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* Some ICCCM manager selection code derived from fvwm2,
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* Copyright (C) 2001 Dominik Vogt, Matthias Clasen, and fvwm2 team
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* Copyright (C) 2003 Rob Adams
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* Copyright (C) 2004-2006 Elijah Newren
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* Copyright (C) 2002, 2003 Red Hat Inc.
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* Some ICCCM manager selection code derived from fvwm2,
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* Copyright (C) 2001 Dominik Vogt, Matthias Clasen, and fvwm2 team
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* Copyright (C) 2003 Rob Adams
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* Copyright (C) 2004-2006 Elijah Newren
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* Copyright (C) 2013-2017 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#include "config.h"
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#include "backends/x11/meta-crtc-xrandr.h"
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#include <stdlib.h>
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#include <X11/Xlib-xcb.h>
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#include <xcb/randr.h>
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#include "backends/x11/meta-monitor-manager-xrandr.h"
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#define ALL_TRANSFORMS ((1 << (META_MONITOR_TRANSFORM_FLIPPED_270 + 1)) - 1)
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gboolean
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meta_crtc_xrandr_set_config (MetaCrtc *crtc,
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xcb_randr_crtc_t xrandr_crtc,
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xcb_timestamp_t timestamp,
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int x,
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int y,
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xcb_randr_mode_t mode,
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xcb_randr_rotation_t rotation,
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xcb_randr_output_t *outputs,
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int n_outputs,
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xcb_timestamp_t *out_timestamp)
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{
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MetaMonitorManager *monitor_manager = meta_crtc_get_monitor_manager (crtc);
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MetaMonitorManagerXrandr *monitor_manager_xrandr =
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META_MONITOR_MANAGER_XRANDR (monitor_manager);
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Display *xdisplay;
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XRRScreenResources *resources;
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xcb_connection_t *xcb_conn;
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xcb_timestamp_t config_timestamp;
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xcb_randr_set_crtc_config_cookie_t cookie;
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xcb_randr_set_crtc_config_reply_t *reply;
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xcb_generic_error_t *xcb_error = NULL;
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xdisplay = meta_monitor_manager_xrandr_get_xdisplay (monitor_manager_xrandr);
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xcb_conn = XGetXCBConnection (xdisplay);
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resources =
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meta_monitor_manager_xrandr_get_resources (monitor_manager_xrandr);
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config_timestamp = resources->configTimestamp;
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cookie = xcb_randr_set_crtc_config (xcb_conn,
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xrandr_crtc,
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timestamp,
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config_timestamp,
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x, y,
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mode,
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rotation,
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n_outputs,
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outputs);
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reply = xcb_randr_set_crtc_config_reply (xcb_conn,
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cookie,
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&xcb_error);
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if (xcb_error || !reply)
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{
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free (xcb_error);
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free (reply);
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return FALSE;
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}
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*out_timestamp = reply->timestamp;
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free (reply);
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return TRUE;
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}
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static MetaMonitorTransform
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meta_monitor_transform_from_xrandr (Rotation rotation)
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{
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static const MetaMonitorTransform y_reflected_map[4] = {
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META_MONITOR_TRANSFORM_FLIPPED_180,
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META_MONITOR_TRANSFORM_FLIPPED_90,
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META_MONITOR_TRANSFORM_FLIPPED,
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META_MONITOR_TRANSFORM_FLIPPED_270
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};
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MetaMonitorTransform ret;
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switch (rotation & 0x7F)
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{
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default:
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case RR_Rotate_0:
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ret = META_MONITOR_TRANSFORM_NORMAL;
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break;
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case RR_Rotate_90:
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ret = META_MONITOR_TRANSFORM_90;
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break;
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case RR_Rotate_180:
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ret = META_MONITOR_TRANSFORM_180;
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break;
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case RR_Rotate_270:
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ret = META_MONITOR_TRANSFORM_270;
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break;
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}
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if (rotation & RR_Reflect_X)
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return ret + 4;
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else if (rotation & RR_Reflect_Y)
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return y_reflected_map[ret];
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else
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return ret;
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}
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#define ALL_ROTATIONS (RR_Rotate_0 | RR_Rotate_90 | RR_Rotate_180 | RR_Rotate_270)
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static MetaMonitorTransform
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meta_monitor_transform_from_xrandr_all (Rotation rotation)
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{
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unsigned ret;
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/* Handle the common cases first (none or all) */
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if (rotation == 0 || rotation == RR_Rotate_0)
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return (1 << META_MONITOR_TRANSFORM_NORMAL);
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/* All rotations and one reflection -> all of them by composition */
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if ((rotation & ALL_ROTATIONS) &&
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((rotation & RR_Reflect_X) || (rotation & RR_Reflect_Y)))
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return ALL_TRANSFORMS;
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ret = 1 << META_MONITOR_TRANSFORM_NORMAL;
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if (rotation & RR_Rotate_90)
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ret |= 1 << META_MONITOR_TRANSFORM_90;
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if (rotation & RR_Rotate_180)
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ret |= 1 << META_MONITOR_TRANSFORM_180;
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if (rotation & RR_Rotate_270)
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ret |= 1 << META_MONITOR_TRANSFORM_270;
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if (rotation & (RR_Rotate_0 | RR_Reflect_X))
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ret |= 1 << META_MONITOR_TRANSFORM_FLIPPED;
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if (rotation & (RR_Rotate_90 | RR_Reflect_X))
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ret |= 1 << META_MONITOR_TRANSFORM_FLIPPED_90;
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if (rotation & (RR_Rotate_180 | RR_Reflect_X))
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ret |= 1 << META_MONITOR_TRANSFORM_FLIPPED_180;
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if (rotation & (RR_Rotate_270 | RR_Reflect_X))
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ret |= 1 << META_MONITOR_TRANSFORM_FLIPPED_270;
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return ret;
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}
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MetaCrtc *
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meta_create_xrandr_crtc (MetaMonitorManager *monitor_manager,
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XRRCrtcInfo *xrandr_crtc,
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RRCrtc crtc_id,
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XRRScreenResources *resources)
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{
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MetaCrtc *crtc;
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unsigned int i;
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crtc = g_object_new (META_TYPE_CRTC, NULL);
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crtc->monitor_manager = monitor_manager;
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crtc->crtc_id = crtc_id;
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crtc->rect.x = xrandr_crtc->x;
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crtc->rect.y = xrandr_crtc->y;
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crtc->rect.width = xrandr_crtc->width;
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crtc->rect.height = xrandr_crtc->height;
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crtc->is_dirty = FALSE;
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crtc->transform =
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meta_monitor_transform_from_xrandr (xrandr_crtc->rotation);
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crtc->all_transforms =
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meta_monitor_transform_from_xrandr_all (xrandr_crtc->rotations);
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for (i = 0; i < (unsigned int) resources->nmode; i++)
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{
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if (resources->modes[i].id == xrandr_crtc->mode)
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{
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crtc->current_mode = g_list_nth_data (monitor_manager->modes, i);
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break;
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}
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}
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return crtc;
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}
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