forked from 12to11/12to11
ebcc957302
* 12to11.c (XLMain): Initialize explicit synchronization. * Imakefile (SRCS, OBJS): Remove generated files. (ScannerTarget): New macro. (clean): Clean GENSRCS as well. (linux-dmabuf-unstable-v1.h): (linux-dmabuf-unstable-v1.c): (xdg-shell.h): (xdg-shell.c): (primary-selection-unstable-v1.h): (primary-selection-unstable-v1.c): Remove and replace with ScannerTarget. * README: Announce explicit synchronization support. * compositor.h (union _RenderFence): New union. (struct _RenderFuncs): Add fence functions. (struct _Surface): New fields for explicit synchronization objects and release callbacks. * egl.c (EglInitFuncs, EglInitGlFuncs, EglInitDisplay): Initialize functions and extensions used for explicit synchronization, and set render func flags. (ImportFdFence, WaitFence, DeleteFence, HandleFenceReadable) (GetFinishFence): New functions. (egl_render_funcs): Add those functions. (AddRenderFlag): New function. * fns.c (MaybeInstallBusHandler): Fix coding style. * picture_renderer.c (ImportFdFence, WaitFence, DeleteFence) (GetFinishFence): New stubs. (picture_render_funcs): Add those functions; they should never be called. * renderer.c (RenderImportFdFence): (RenderWaitFence): (RenderDeleteFence): (RenderGetFinishFence): New wrapper functions. * run.c (struct _PollFd, XLAddWriteFd, XLAddReadFd): Add pollfd field to callback args. (RunStep): Pass them to callbacks. Also, fix a comment. * surface.c (DoRelease): New function. (DestroySurface): Clear release if possible. (SavePendingState, TryEarlyRelease): Extract release code to DoRelease. (InternalCommit): Wait for sync fences before continuing. (Commit): Close acquire fence and release sync release object. (HandleSurfaceDestroy): Destroy release callback and close acquire fence. (XLCreateSurface): Clear acquire fence field with right initial value. * xdata.c (NoticeTransferWritable): (NoticeTransferReadable): (NoticeConversionTransferReadable): (NoticeConversionTransferWritable): Adjust arguments for new callback data.
135 lines
3.4 KiB
C
135 lines
3.4 KiB
C
/* Wayland compositor running on top of an X serer.
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Copyright (C) 2022 to various contributors.
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This file is part of 12to11.
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12to11 is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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12to11 is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with 12to11. If not, see <https://www.gnu.org/licenses/>. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include "compositor.h"
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/* Globals. */
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Compositor compositor;
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static void
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DetermineServerTime (void)
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{
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Time server_time;
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struct timespec clock_spec, server_spec, diff;
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/* Try to determine if the X server time is the same as the
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monotonic time. If it is not, certain features such as "active"
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frame synchronization will not be available. */
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clock_gettime (CLOCK_MONOTONIC, &clock_spec);
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server_time = XLGetServerTimeRoundtrip ();
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server_spec.tv_sec = server_time / 1000;
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server_spec.tv_nsec = ((server_time - server_time / 1000 * 1000)
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* 1000000);
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diff = TimespecSub (server_spec, clock_spec);
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if (TimespecCmp (diff, MakeTimespec (0, 50000000)) <= 0
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|| TimespecCmp (diff, MakeTimespec (0, -50000000)) <= 0)
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/* Since the difference between the server time and the monotonic
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time is less than 50 ms, the server time is the monotonic
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time. */
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compositor.server_time_monotonic = True;
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else
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{
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compositor.server_time_monotonic = False;
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fprintf (stderr, "Warning: the X server time does not seem to"
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" be synchronized with the monotonic time. Multiple"
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" subsurfaces may be displayed at a reduced maximum"
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" frame rate.\n");
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}
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}
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static void
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XLMain (int argc, char **argv)
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{
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Display *dpy;
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struct wl_display *wl_display;
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const char *socket;
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dpy = XOpenDisplay (NULL);
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wl_display = wl_display_create ();
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if (!dpy || !wl_display)
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{
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fprintf (stderr, "Display initialization failed\n");
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exit (1);
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}
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socket = wl_display_add_socket_auto (wl_display);
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if (!socket)
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{
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fprintf (stderr, "Unable to add socket to Wayland display\n");
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exit (1);
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}
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compositor.display = dpy;
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compositor.conn = XGetXCBConnection (dpy);
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compositor.wl_display = wl_display;
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compositor.wl_socket = socket;
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compositor.wl_event_loop
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= wl_display_get_event_loop (wl_display);
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InitXErrors ();
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SubcompositorInit ();
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InitSelections ();
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XLInitTimers ();
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XLInitAtoms ();
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/* Initialize renderers immediately after timers and atoms are set
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up. */
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InitRenderers ();
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XLInitRROutputs ();
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XLInitCompositor ();
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XLInitSurfaces ();
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XLInitShm ();
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XLInitXdgWM ();
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XLInitXdgSurfaces ();
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XLInitXdgToplevels ();
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XLInitFrameClock ();
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XLInitSubsurfaces ();
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XLInitSeats ();
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XLInitDataDevice ();
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XLInitPopups ();
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XLInitDmabuf ();
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XLInitXData ();
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XLInitXSettings ();
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XLInitIconSurfaces ();
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XLInitPrimarySelection ();
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XLInitExplicitSynchronization ();
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/* This has to come after the rest of the initialization. */
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DetermineServerTime ();
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XLRunCompositor ();
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}
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int
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main (int argc, char **argv)
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{
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XLMain (argc, argv);
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return 0;
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}
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