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154fd4d1a0
Recent commit "qapi: Smarter camel_to_upper() to reduce need for 'prefix'" added a temporary 'prefix' to delay changing the generated code. Revert it. This improves DisplayGLMode's generated enumeration constant prefix from DISPLAYGL_MODE to DISPLAY_GL_MODE. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20240904111836.3273842-9-armbru@redhat.com>
538 lines
15 KiB
C
538 lines
15 KiB
C
/*
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* QEMU DBus display
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*
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* Copyright (c) 2021 Marc-André Lureau <marcandre.lureau@redhat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "qemu/cutils.h"
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#include "qemu/error-report.h"
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#include "qemu/dbus.h"
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#include "qemu/main-loop.h"
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#include "qemu/option.h"
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#include "qom/object_interfaces.h"
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#include "sysemu/sysemu.h"
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#include "ui/dbus-module.h"
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#ifdef CONFIG_OPENGL
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#include "ui/egl-helpers.h"
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#include "ui/egl-context.h"
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#endif
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#include "audio/audio.h"
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#include "audio/audio_int.h"
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#include "qapi/error.h"
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#include "trace.h"
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#include "dbus.h"
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static DBusDisplay *dbus_display;
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#ifdef CONFIG_OPENGL
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static QEMUGLContext dbus_create_context(DisplayGLCtx *dgc,
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QEMUGLParams *params)
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{
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eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
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qemu_egl_rn_ctx);
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return qemu_egl_create_context(dgc, params);
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}
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static bool
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dbus_is_compatible_dcl(DisplayGLCtx *dgc,
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DisplayChangeListener *dcl)
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{
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return
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dcl->ops == &dbus_gl_dcl_ops ||
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dcl->ops == &dbus_console_dcl_ops;
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}
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static void
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dbus_create_texture(DisplayGLCtx *ctx, DisplaySurface *surface)
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{
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surface_gl_create_texture(ctx->gls, surface);
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}
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static void
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dbus_destroy_texture(DisplayGLCtx *ctx, DisplaySurface *surface)
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{
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surface_gl_destroy_texture(ctx->gls, surface);
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}
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static void
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dbus_update_texture(DisplayGLCtx *ctx, DisplaySurface *surface,
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int x, int y, int w, int h)
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{
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surface_gl_update_texture(ctx->gls, surface, x, y, w, h);
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}
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static const DisplayGLCtxOps dbus_gl_ops = {
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.dpy_gl_ctx_is_compatible_dcl = dbus_is_compatible_dcl,
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.dpy_gl_ctx_create = dbus_create_context,
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.dpy_gl_ctx_destroy = qemu_egl_destroy_context,
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.dpy_gl_ctx_make_current = qemu_egl_make_context_current,
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.dpy_gl_ctx_create_texture = dbus_create_texture,
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.dpy_gl_ctx_destroy_texture = dbus_destroy_texture,
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.dpy_gl_ctx_update_texture = dbus_update_texture,
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};
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#endif
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static NotifierList dbus_display_notifiers =
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NOTIFIER_LIST_INITIALIZER(dbus_display_notifiers);
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void
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dbus_display_notifier_add(Notifier *notifier)
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{
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notifier_list_add(&dbus_display_notifiers, notifier);
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}
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static void
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dbus_display_notifier_remove(Notifier *notifier)
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{
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notifier_remove(notifier);
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}
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void
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dbus_display_notify(DBusDisplayEvent *event)
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{
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notifier_list_notify(&dbus_display_notifiers, event);
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}
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static void
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dbus_display_init(Object *o)
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{
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DBusDisplay *dd = DBUS_DISPLAY(o);
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g_autoptr(GDBusObjectSkeleton) vm = NULL;
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#ifdef CONFIG_OPENGL
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dd->glctx.ops = &dbus_gl_ops;
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if (display_opengl) {
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dd->glctx.gls = qemu_gl_init_shader();
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}
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#endif
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dd->iface = qemu_dbus_display1_vm_skeleton_new();
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dd->consoles = g_ptr_array_new_with_free_func(g_object_unref);
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dd->server = g_dbus_object_manager_server_new(DBUS_DISPLAY1_ROOT);
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vm = g_dbus_object_skeleton_new(DBUS_DISPLAY1_ROOT "/VM");
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g_dbus_object_skeleton_add_interface(
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vm, G_DBUS_INTERFACE_SKELETON(dd->iface));
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g_dbus_object_manager_server_export(dd->server, vm);
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dbus_clipboard_init(dd);
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dbus_chardev_init(dd);
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}
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static void
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dbus_display_finalize(Object *o)
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{
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DBusDisplay *dd = DBUS_DISPLAY(o);
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if (dd->notifier.notify) {
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dbus_display_notifier_remove(&dd->notifier);
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}
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qemu_clipboard_peer_unregister(&dd->clipboard_peer);
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g_clear_object(&dd->clipboard);
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g_clear_object(&dd->server);
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g_clear_pointer(&dd->consoles, g_ptr_array_unref);
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if (dd->add_client_cancellable) {
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g_cancellable_cancel(dd->add_client_cancellable);
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}
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g_clear_object(&dd->add_client_cancellable);
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g_clear_object(&dd->bus);
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g_clear_object(&dd->iface);
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g_free(dd->dbus_addr);
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g_free(dd->audiodev);
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#ifdef CONFIG_OPENGL
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g_clear_pointer(&dd->glctx.gls, qemu_gl_fini_shader);
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#endif
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dbus_display = NULL;
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}
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static bool
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dbus_display_add_console(DBusDisplay *dd, int idx, Error **errp)
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{
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QemuConsole *con;
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DBusDisplayConsole *dbus_console;
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con = qemu_console_lookup_by_index(idx);
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assert(con);
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if (qemu_console_is_graphic(con) &&
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dd->gl_mode != DISPLAY_GL_MODE_OFF) {
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qemu_console_set_display_gl_ctx(con, &dd->glctx);
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}
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dbus_console = dbus_display_console_new(dd, con);
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g_ptr_array_insert(dd->consoles, idx, dbus_console);
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g_dbus_object_manager_server_export(dd->server,
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G_DBUS_OBJECT_SKELETON(dbus_console));
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return true;
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}
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static void
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dbus_display_complete(UserCreatable *uc, Error **errp)
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{
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DBusDisplay *dd = DBUS_DISPLAY(uc);
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g_autoptr(GError) err = NULL;
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g_autofree char *uuid = qemu_uuid_unparse_strdup(&qemu_uuid);
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g_autoptr(GArray) consoles = NULL;
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GVariant *console_ids;
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int idx;
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if (!object_resolve_path_type("", TYPE_DBUS_DISPLAY, NULL)) {
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error_setg(errp, "There is already an instance of %s",
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TYPE_DBUS_DISPLAY);
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return;
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}
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if (dd->p2p) {
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/* wait for dbus_display_add_client() */
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dbus_display = dd;
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} else if (dd->dbus_addr && *dd->dbus_addr) {
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dd->bus = g_dbus_connection_new_for_address_sync(dd->dbus_addr,
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G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT |
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G_DBUS_CONNECTION_FLAGS_MESSAGE_BUS_CONNECTION,
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NULL, NULL, &err);
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} else {
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dd->bus = g_bus_get_sync(G_BUS_TYPE_SESSION, NULL, &err);
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}
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if (err) {
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error_setg(errp, "failed to connect to DBus: %s", err->message);
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return;
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}
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if (dd->audiodev && *dd->audiodev) {
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AudioState *audio_state = audio_state_by_name(dd->audiodev, errp);
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if (!audio_state) {
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return;
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}
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if (!g_str_equal(audio_state->drv->name, "dbus")) {
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error_setg(errp, "Audiodev '%s' is not compatible with DBus",
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dd->audiodev);
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return;
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}
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audio_state->drv->set_dbus_server(audio_state, dd->server, dd->p2p);
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}
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consoles = g_array_new(FALSE, FALSE, sizeof(guint32));
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for (idx = 0;; idx++) {
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if (!qemu_console_lookup_by_index(idx)) {
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break;
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}
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if (!dbus_display_add_console(dd, idx, errp)) {
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return;
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}
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g_array_append_val(consoles, idx);
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}
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console_ids = g_variant_new_from_data(
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G_VARIANT_TYPE("au"),
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consoles->data, consoles->len * sizeof(guint32), TRUE,
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(GDestroyNotify)g_array_unref, consoles);
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g_steal_pointer(&consoles);
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g_object_set(dd->iface,
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"name", qemu_name ?: "QEMU " QEMU_VERSION,
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"uuid", uuid,
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"console-ids", console_ids,
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NULL);
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if (dd->bus) {
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g_dbus_object_manager_server_set_connection(dd->server, dd->bus);
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g_bus_own_name_on_connection(dd->bus, "org.qemu",
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G_BUS_NAME_OWNER_FLAGS_NONE,
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NULL, NULL, NULL, NULL);
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}
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}
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static void
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dbus_display_add_client_ready(GObject *source_object,
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GAsyncResult *res,
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gpointer user_data)
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{
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g_autoptr(GError) err = NULL;
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g_autoptr(GDBusConnection) conn = NULL;
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g_clear_object(&dbus_display->add_client_cancellable);
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conn = g_dbus_connection_new_finish(res, &err);
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if (!conn) {
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error_printf("Failed to accept D-Bus client: %s", err->message);
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}
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g_dbus_object_manager_server_set_connection(dbus_display->server, conn);
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g_dbus_connection_start_message_processing(conn);
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}
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static bool
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dbus_display_add_client(int csock, Error **errp)
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{
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g_autoptr(GError) err = NULL;
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g_autoptr(GSocket) socket = NULL;
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g_autoptr(GSocketConnection) conn = NULL;
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g_autofree char *guid = g_dbus_generate_guid();
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if (!dbus_display) {
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error_setg(errp, "p2p connections not accepted in bus mode");
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return false;
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}
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if (dbus_display->add_client_cancellable) {
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g_cancellable_cancel(dbus_display->add_client_cancellable);
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}
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#ifdef WIN32
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socket = g_socket_new_from_fd(_get_osfhandle(csock), &err);
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#else
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socket = g_socket_new_from_fd(csock, &err);
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#endif
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if (!socket) {
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error_setg(errp, "Failed to setup D-Bus socket: %s", err->message);
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close(csock);
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return false;
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}
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#ifdef WIN32
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/* socket owns the SOCKET handle now, so release our osf handle */
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qemu_close_socket_osfhandle(csock);
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#endif
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conn = g_socket_connection_factory_create_connection(socket);
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dbus_display->add_client_cancellable = g_cancellable_new();
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g_dbus_connection_new(G_IO_STREAM(conn),
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guid,
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G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_SERVER |
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G_DBUS_CONNECTION_FLAGS_DELAY_MESSAGE_PROCESSING,
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NULL,
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dbus_display->add_client_cancellable,
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dbus_display_add_client_ready,
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NULL);
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return true;
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}
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static bool
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get_dbus_p2p(Object *o, Error **errp)
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{
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DBusDisplay *dd = DBUS_DISPLAY(o);
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return dd->p2p;
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}
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static void
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set_dbus_p2p(Object *o, bool p2p, Error **errp)
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{
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DBusDisplay *dd = DBUS_DISPLAY(o);
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dd->p2p = p2p;
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}
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static char *
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get_dbus_addr(Object *o, Error **errp)
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{
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DBusDisplay *dd = DBUS_DISPLAY(o);
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return g_strdup(dd->dbus_addr);
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}
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static void
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set_dbus_addr(Object *o, const char *str, Error **errp)
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{
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DBusDisplay *dd = DBUS_DISPLAY(o);
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g_free(dd->dbus_addr);
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dd->dbus_addr = g_strdup(str);
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}
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static char *
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get_audiodev(Object *o, Error **errp)
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{
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DBusDisplay *dd = DBUS_DISPLAY(o);
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return g_strdup(dd->audiodev);
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}
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static void
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set_audiodev(Object *o, const char *str, Error **errp)
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{
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DBusDisplay *dd = DBUS_DISPLAY(o);
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g_free(dd->audiodev);
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dd->audiodev = g_strdup(str);
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}
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static int
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get_gl_mode(Object *o, Error **errp)
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{
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DBusDisplay *dd = DBUS_DISPLAY(o);
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return dd->gl_mode;
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}
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static void
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set_gl_mode(Object *o, int val, Error **errp)
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{
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DBusDisplay *dd = DBUS_DISPLAY(o);
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dd->gl_mode = val;
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}
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static void
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dbus_display_class_init(ObjectClass *oc, void *data)
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{
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UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
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ucc->complete = dbus_display_complete;
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object_class_property_add_bool(oc, "p2p", get_dbus_p2p, set_dbus_p2p);
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object_class_property_add_str(oc, "addr", get_dbus_addr, set_dbus_addr);
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object_class_property_add_str(oc, "audiodev", get_audiodev, set_audiodev);
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object_class_property_add_enum(oc, "gl-mode",
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"DisplayGLMode", &DisplayGLMode_lookup,
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get_gl_mode, set_gl_mode);
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}
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#define TYPE_CHARDEV_VC "chardev-vc"
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typedef struct DBusVCClass {
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DBusChardevClass parent_class;
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void (*parent_parse)(QemuOpts *opts, ChardevBackend *b, Error **errp);
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} DBusVCClass;
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DECLARE_CLASS_CHECKERS(DBusVCClass, DBUS_VC,
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TYPE_CHARDEV_VC)
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static void
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dbus_vc_parse(QemuOpts *opts, ChardevBackend *backend,
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Error **errp)
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{
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DBusVCClass *klass = DBUS_VC_CLASS(object_class_by_name(TYPE_CHARDEV_VC));
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const char *name = qemu_opt_get(opts, "name");
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const char *id = qemu_opts_id(opts);
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if (name == NULL) {
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if (g_str_has_prefix(id, "compat_monitor")) {
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name = "org.qemu.monitor.hmp.0";
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} else if (g_str_has_prefix(id, "serial")) {
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name = "org.qemu.console.serial.0";
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} else {
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name = "";
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}
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if (!qemu_opt_set(opts, "name", name, errp)) {
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return;
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}
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}
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klass->parent_parse(opts, backend, errp);
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}
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static void
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dbus_vc_class_init(ObjectClass *oc, void *data)
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{
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DBusVCClass *klass = DBUS_VC_CLASS(oc);
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ChardevClass *cc = CHARDEV_CLASS(oc);
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klass->parent_parse = cc->parse;
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cc->parse = dbus_vc_parse;
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}
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static const TypeInfo dbus_vc_type_info = {
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.name = TYPE_CHARDEV_VC,
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.parent = TYPE_CHARDEV_DBUS,
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.class_size = sizeof(DBusVCClass),
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.class_init = dbus_vc_class_init,
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};
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static void
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early_dbus_init(DisplayOptions *opts)
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{
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DisplayGLMode mode = opts->has_gl ? opts->gl : DISPLAY_GL_MODE_OFF;
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if (mode != DISPLAY_GL_MODE_OFF) {
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#ifdef CONFIG_OPENGL
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egl_init(opts->u.dbus.rendernode, mode, &error_fatal);
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#else
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error_report("dbus: GL rendering is not supported");
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#endif
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}
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type_register(&dbus_vc_type_info);
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}
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static void
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dbus_init(DisplayState *ds, DisplayOptions *opts)
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{
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DisplayGLMode mode = opts->has_gl ? opts->gl : DISPLAY_GL_MODE_OFF;
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if (opts->u.dbus.addr && opts->u.dbus.p2p) {
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error_report("dbus: can't accept both addr=X and p2p=yes options");
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exit(1);
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}
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|
using_dbus_display = 1;
|
|
|
|
object_new_with_props(TYPE_DBUS_DISPLAY,
|
|
object_get_objects_root(),
|
|
"dbus-display", &error_fatal,
|
|
"addr", opts->u.dbus.addr ?: "",
|
|
"audiodev", opts->u.dbus.audiodev ?: "",
|
|
"gl-mode", DisplayGLMode_str(mode),
|
|
"p2p", yes_no(opts->u.dbus.p2p),
|
|
NULL);
|
|
}
|
|
|
|
static const TypeInfo dbus_display_info = {
|
|
.name = TYPE_DBUS_DISPLAY,
|
|
.parent = TYPE_OBJECT,
|
|
.instance_size = sizeof(DBusDisplay),
|
|
.instance_init = dbus_display_init,
|
|
.instance_finalize = dbus_display_finalize,
|
|
.class_init = dbus_display_class_init,
|
|
.interfaces = (InterfaceInfo[]) {
|
|
{ TYPE_USER_CREATABLE },
|
|
{ }
|
|
}
|
|
};
|
|
|
|
static QemuDisplay qemu_display_dbus = {
|
|
.type = DISPLAY_TYPE_DBUS,
|
|
.early_init = early_dbus_init,
|
|
.init = dbus_init,
|
|
.vc = "vc",
|
|
};
|
|
|
|
static void register_dbus(void)
|
|
{
|
|
qemu_dbus_display = (struct QemuDBusDisplayOps) {
|
|
.add_client = dbus_display_add_client,
|
|
};
|
|
type_register_static(&dbus_display_info);
|
|
qemu_display_register(&qemu_display_dbus);
|
|
}
|
|
|
|
type_init(register_dbus);
|
|
|
|
#ifdef CONFIG_OPENGL
|
|
module_dep("ui-opengl");
|
|
#endif
|