mirror of
https://gitlab.freedesktop.org/pulseaudio/pulseaudio.git
synced 2025-11-09 13:29:59 -05:00
5effc83479
FSF addresses used in PA sources are no longer valid and rpmlint generates numerous warnings during packaging because of this. This patch changes all FSF addresses to FSF web page according to the GPL how-to: https://www.gnu.org/licenses/gpl-howto.en.html Done automatically by sed-ing through sources.
145 lines
3.9 KiB
C
145 lines
3.9 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License,
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or (at your option) any later version.
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PulseAudio 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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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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***/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <string.h>
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#include "x11prop.h"
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#include <pulsecore/macro.h>
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#include <xcb/xproto.h>
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#define PA_XCB_FORMAT 8
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static xcb_screen_t *screen_of_display(xcb_connection_t *xcb, int screen) {
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const xcb_setup_t *s;
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xcb_screen_iterator_t iter;
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if ((s = xcb_get_setup(xcb))) {
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iter = xcb_setup_roots_iterator(s);
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for (; iter.rem; --screen, xcb_screen_next(&iter))
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if (0 == screen)
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return iter.data;
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}
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return NULL;
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}
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void pa_x11_set_prop(xcb_connection_t *xcb, int screen, const char *name, const char *data) {
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xcb_screen_t *xs;
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xcb_intern_atom_reply_t *reply;
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pa_assert(xcb);
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pa_assert(name);
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pa_assert(data);
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if ((xs = screen_of_display(xcb, screen))) {
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reply = xcb_intern_atom_reply(xcb,
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xcb_intern_atom(xcb, 0, strlen(name), name),
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NULL);
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if (reply) {
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xcb_change_property(xcb, XCB_PROP_MODE_REPLACE, xs->root, reply->atom,
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XCB_ATOM_STRING, PA_XCB_FORMAT,
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(int) strlen(data), (const void*) data);
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free(reply);
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}
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}
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}
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void pa_x11_del_prop(xcb_connection_t *xcb, int screen, const char *name) {
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xcb_screen_t *xs;
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xcb_intern_atom_reply_t *reply;
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pa_assert(xcb);
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pa_assert(name);
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if ((xs = screen_of_display(xcb, screen))) {
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reply = xcb_intern_atom_reply(xcb,
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xcb_intern_atom(xcb, 0, strlen(name), name),
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NULL);
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if (reply) {
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xcb_delete_property(xcb, xs->root, reply->atom);
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free(reply);
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}
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}
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}
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char* pa_x11_get_prop(xcb_connection_t *xcb, int screen, const char *name, char *p, size_t l) {
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char *ret = NULL;
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int len;
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xcb_get_property_cookie_t req;
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xcb_get_property_reply_t* prop = NULL;
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xcb_screen_t *xs;
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xcb_intern_atom_reply_t *reply;
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pa_assert(xcb);
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pa_assert(name);
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pa_assert(p);
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xs = screen_of_display(xcb, screen);
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/*
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* Also try and get the settings from the first screen.
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* This allows for e.g. a Media Center to run on screen 1 (e.g. HDMI) and have
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* different defaults (e.g. prefer the HDMI sink) than the primary screen 0
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* which uses the Internal Audio sink.
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*/
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if (!xs && 0 != screen)
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xs = screen_of_display(xcb, 0);
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if (xs) {
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reply = xcb_intern_atom_reply(xcb,
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xcb_intern_atom(xcb, 0, strlen(name), name),
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NULL);
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if (!reply)
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goto finish;
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req = xcb_get_property(xcb, 0, xs->root, reply->atom, XCB_ATOM_STRING, 0, (uint32_t)(l-1));
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free(reply);
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prop = xcb_get_property_reply(xcb, req, NULL);
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if (!prop)
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goto finish;
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if (PA_XCB_FORMAT != prop->format)
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goto finish;
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len = xcb_get_property_value_length(prop);
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if (len < 1 || len >= (int)l)
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goto finish;
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memcpy(p, xcb_get_property_value(prop), len);
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p[len] = 0;
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ret = p;
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}
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finish:
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if (prop)
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free(prop);
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return ret;
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}
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