204 lines
6.6 KiB
C
204 lines
6.6 KiB
C
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/* -*- 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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