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121 lines
3.9 KiB
121 lines
3.9 KiB
/*****************************************************************************
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* Copyright (C) 2021 VLC authors and VideoLAN
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#include <vlc_cxx_helpers.hpp>
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#include "compositor_x11_renderclient.hpp"
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#define _NET_WM_BYPASS_COMPOSITOR_NAME "_NET_WM_BYPASS_COMPOSITOR"
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using namespace vlc;
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CompositorX11RenderClient::CompositorX11RenderClient(qt_intf_t* p_intf, xcb_connection_t* conn, QWindow* window, QObject *parent)
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: QObject(parent)
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, m_intf(p_intf)
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, m_window(window)
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, m_conn(conn)
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, m_wid(window->winId())
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, m_pixmap(m_conn)
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, m_picture(m_conn)
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{
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xcb_generic_error_t* err = nullptr;
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xcb_get_window_attributes_cookie_t attrCookie = xcb_get_window_attributes(m_conn, m_wid);
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auto attrReply = wrap_cptr(xcb_get_window_attributes_reply(m_conn, attrCookie, &err));
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if (err)
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{
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msg_Info(m_intf, "can't get window attr");
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free(err);
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return;
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}
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xcb_visualid_t visual = attrReply->visual;
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bool ret = findVisualFormat(m_conn, visual, &m_format, nullptr);
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if (!ret)
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{
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msg_Info(m_intf, "can't find visual format");
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return;
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}
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xcb_void_cookie_t cookie = xcb_composite_redirect_window_checked(m_conn, m_wid, XCB_COMPOSITE_REDIRECT_MANUAL);
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err = xcb_request_check(m_conn, cookie);
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if (err)
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{
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msg_Warn(m_intf, " can't redirect window %u.%u : %u", err->major_code, err->minor_code, err->error_code);
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free(err);
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return;
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}
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xcb_atom_t _NET_WM_BYPASS_COMPOSITOR = getInternAtom(m_conn, _NET_WM_BYPASS_COMPOSITOR_NAME);
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if (_NET_WM_BYPASS_COMPOSITOR != XCB_ATOM_NONE)
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{
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uint32_t val = 1;
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xcb_change_property(m_conn, XCB_PROP_MODE_REPLACE, m_wid,
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_NET_WM_BYPASS_COMPOSITOR, XCB_ATOM_CARDINAL, 32, 1, &val);
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}
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connect(window, &QWindow::widthChanged, this, &CompositorX11RenderClient::resetPixmap);
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connect(window, &QWindow::heightChanged, this, &CompositorX11RenderClient::resetPixmap);
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}
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CompositorX11RenderClient::~CompositorX11RenderClient()
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{
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m_pixmap.reset();
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m_picture.reset();
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}
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xcb_drawable_t CompositorX11RenderClient::getWindowXid() const
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{
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return m_window->winId();
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}
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void CompositorX11RenderClient::createPicture()
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{
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xcb_void_cookie_t voidCookie;
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auto err = wrap_cptr<xcb_generic_error_t>(nullptr);
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m_pixmap.generateId();
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voidCookie = xcb_composite_name_window_pixmap_checked(m_conn, m_wid, m_pixmap.get());
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err.reset(xcb_request_check(m_conn, voidCookie));
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if (err)
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{
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msg_Warn(m_intf, "can't create name window pixmap");
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m_pixmap.reset();
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return;
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}
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m_picture.generateId();
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voidCookie = xcb_render_create_picture_checked(m_conn, m_picture.get(), m_pixmap.get(), m_format, 0, 0);
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err.reset(xcb_request_check(m_conn, voidCookie));
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if (err)
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{
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msg_Warn(m_intf, "can't create name window picture");
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m_pixmap.reset();
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m_picture.reset();
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}
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}
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xcb_render_picture_t CompositorX11RenderClient::getPicture()
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{
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if (!m_picture)
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createPicture();
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return m_picture.get();
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}
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void CompositorX11RenderClient::resetPixmap()
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{
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m_pixmap.reset();
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m_picture.reset();
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}
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