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412 lines
14 KiB
412 lines
14 KiB
/* This file is part of the KDE project
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* Copyright (C) 2010 Lukas Tinkl <ltinkl@redhat.com>
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* Copyright (C) 2015 Kai Uwe Broulik <kde@privat.broulik.de>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License version 2 as published by the Free Software Foundation.
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*
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* This library 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 GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#include <QX11Info>
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#include <QDebug>
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#include "xrandrbrightness.h"
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XRandrBrightness::XRandrBrightness()
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{
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if (!QX11Info::isPlatformX11()) {
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return;
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}
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ScopedCPointer<xcb_randr_query_version_reply_t> versionReply(xcb_randr_query_version_reply(QX11Info::connection(),
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xcb_randr_query_version(QX11Info::connection(), 1, 2),
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nullptr));
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if (!versionReply) {
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qDebug() << "RandR Query version returned null";
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return;
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}
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if (versionReply->major_version < 1 || (versionReply->major_version == 1 && versionReply->minor_version < 2)) {
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qDebug() << "RandR version" << versionReply->major_version << "." << versionReply->minor_version << " too old";
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return;
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}
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ScopedCPointer<xcb_intern_atom_reply_t> backlightReply(xcb_intern_atom_reply(QX11Info::connection(),
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xcb_intern_atom (QX11Info::connection(), 1, strlen("Backlight"), "Backlight"),
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nullptr));
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if (!backlightReply) {
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qDebug() << "Intern Atom for Backlight returned null";
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return;
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}
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m_backlight = backlightReply->atom;
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if (m_backlight == XCB_NONE) {
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qDebug() << "No outputs have backlight property";
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//return;
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}
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xcb_screen_iterator_t iter = xcb_setup_roots_iterator(xcb_get_setup(QX11Info::connection()));
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if (!iter.rem) {
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qDebug() << "XCB Screen Roots Iterator rem was null";
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return;
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}
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xcb_screen_t *screen = iter.data;
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xcb_window_t root = screen->root;
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m_resources.reset(xcb_randr_get_screen_resources_current_reply(QX11Info::connection(),
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xcb_randr_get_screen_resources_current(QX11Info::connection(), root)
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, nullptr));
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if (!m_resources) {
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qDebug() << "RANDR Get Screen Resources returned null";
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return;
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}
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}
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bool XRandrBrightness::backlight_get_with_range(xcb_randr_output_t output, long &value, long &min, long &max) const {
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long cur = backlight_get(output);
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if (cur == -1) {
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return false;
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}
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ScopedCPointer<xcb_randr_query_output_property_reply_t> propertyReply(xcb_randr_query_output_property_reply(QX11Info::connection(),
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xcb_randr_query_output_property(QX11Info::connection(), output, m_backlight)
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, nullptr));
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if (!propertyReply) {
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return -1;
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}
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if (propertyReply->range && xcb_randr_query_output_property_valid_values_length(propertyReply.data()) == 2) {
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int32_t *values = xcb_randr_query_output_property_valid_values(propertyReply.data());
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value = cur;
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min = values[0];
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max = values[1];
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return true;
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}
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return false;
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}
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long XRandrBrightness::backlight_get(xcb_randr_output_t output) const
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{
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ScopedCPointer<xcb_randr_get_output_property_reply_t> propertyReply;
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long value;
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if (m_backlight != XCB_ATOM_NONE) {
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propertyReply.reset(xcb_randr_get_output_property_reply(QX11Info::connection(),
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xcb_randr_get_output_property(QX11Info::connection(), output, m_backlight, XCB_ATOM_NONE, 0, 4, 0, 0)
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, nullptr));
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if (!propertyReply) {
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return -1;
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}
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}
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if (!propertyReply || propertyReply->type != XCB_ATOM_INTEGER || propertyReply->num_items != 1 || propertyReply->format != 32) {
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value = -1;
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} else {
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value = *(reinterpret_cast<long *>(xcb_randr_get_output_property_data(propertyReply.data())));
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}
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return value;
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}
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void XRandrBrightness::backlight_set(xcb_randr_output_t output, long value)
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{
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xcb_randr_change_output_property(QX11Info::connection(), output, m_backlight, XCB_ATOM_INTEGER,
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32, XCB_PROP_MODE_REPLACE,
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1, reinterpret_cast<unsigned char *>(&value));
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}
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float XRandrBrightness::gamma_brightness_get(xcb_randr_output_t output)
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{
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xcb_generic_error_t *error;
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xcb_randr_get_output_info_cookie_t output_info_cookie = xcb_randr_get_output_info (QX11Info::connection(), output, 0);
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xcb_randr_get_output_info_reply_t * output_info = xcb_randr_get_output_info_reply (QX11Info::connection(), output_info_cookie, &error);
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if(error != NULL)
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{
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qDebug() << "Error getting output_info";
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return -1;
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}
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if(output_info == NULL)
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{
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qDebug() << "Error: output_info is null";
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return -1;
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}
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// xcb_randr_get_output_info_reply_t tiene como elemento crtc
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xcb_randr_get_crtc_gamma_cookie_t gamma_cookie = xcb_randr_get_crtc_gamma_unchecked (QX11Info::connection(), output_info->crtc);
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xcb_randr_get_crtc_gamma_reply_t *gamma_reply = xcb_randr_get_crtc_gamma_reply (QX11Info::connection(), gamma_cookie, &error);
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if(error != NULL)
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{
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qDebug() << "Error getting gamma_reply";
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return -1;
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}
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if(gamma_reply == NULL)
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{
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qDebug() << "Error: gamma_reply is null";
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return -1;
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}
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uint16_t *red = xcb_randr_get_crtc_gamma_red (gamma_reply);
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if(red == NULL)
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{
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qDebug() << "Error: red is null";
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return -1;
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}
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int red_length = xcb_randr_get_crtc_gamma_red_length(gamma_reply);
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// uint16_t *green = xcb_randr_get_crtc_gamma_green (gamma_reply);
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// if(green == NULL)
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// {
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// qDebug() << "Error: green is null";
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// return -1;
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// }
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// uint16_t *blue = xcb_randr_get_crtc_gamma_blue (gamma_reply);
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// if(blue == NULL)
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// {
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// qDebug() << "Error: blue is null";
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// return -1;
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// }
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float brightness = (float)red[red_length-1]/65535.0;
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return brightness;
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}
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void XRandrBrightness::gamma_brightness_set(xcb_randr_output_t output, float percent)
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{
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xcb_generic_error_t *error;
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xcb_randr_get_output_info_cookie_t output_info_cookie = xcb_randr_get_output_info (QX11Info::connection(), output, 0);
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xcb_randr_get_output_info_reply_t * output_info = xcb_randr_get_output_info_reply (QX11Info::connection(), output_info_cookie, &error);
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if(error != NULL)
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{
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qDebug() << "Error getting output_info";
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return;
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}
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if(output_info == NULL)
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{
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qDebug() << "Error: output_info is null";
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return;
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}
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// xcb_randr_get_output_info_reply_t tiene como elemento crtc
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xcb_randr_get_crtc_gamma_cookie_t gamma_cookie = xcb_randr_get_crtc_gamma_unchecked (QX11Info::connection(), output_info->crtc);
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xcb_randr_get_crtc_gamma_reply_t *gamma_reply = xcb_randr_get_crtc_gamma_reply (QX11Info::connection(), gamma_cookie, &error);
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if(error != NULL)
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{
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qDebug() << "Error getting gamma_reply";
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return;
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}
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if(gamma_reply == NULL)
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{
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qDebug() << "Error: gamma_reply is null";
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return;
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}
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uint16_t *red = xcb_randr_get_crtc_gamma_red (gamma_reply);
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if(red == NULL)
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{
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qDebug() << "Error: red is null";
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return;
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}
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int red_length = xcb_randr_get_crtc_gamma_red_length(gamma_reply);
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uint16_t *green = xcb_randr_get_crtc_gamma_green (gamma_reply);
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if(green == NULL)
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{
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qDebug() << "Error: green is null";
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return;
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}
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uint16_t *blue = xcb_randr_get_crtc_gamma_blue (gamma_reply);
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if(blue == NULL)
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{
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qDebug() << "Error: blue is null";
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return;
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}
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float max_gamma = 65535*percent;
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for(int i=0;i<red_length;i++)
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{
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int value = qMin((int)(((float)i/(float)(red_length-1))*max_gamma),65535);
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green[i] = blue[i] = red[i] = value;
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}
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xcb_randr_set_crtc_gamma (QX11Info::connection(), output_info->crtc, red_length, red, green, blue);
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}
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QList<MonitorInfo> XRandrBrightness::getMonitorsInfo()
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{
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QList<MonitorInfo> monitors;
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if (!m_resources) {
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return monitors;
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}
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auto *outputs = xcb_randr_get_screen_resources_current_outputs(m_resources.data());
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for (int i = 0; i < m_resources->num_outputs; ++i) {
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xcb_randr_output_t output = outputs[i];
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xcb_generic_error_t *error;
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xcb_randr_get_output_info_cookie_t output_info_cookie = xcb_randr_get_output_info (QX11Info::connection(), output, 0);
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xcb_randr_get_output_info_reply_t * output_info = xcb_randr_get_output_info_reply (QX11Info::connection(), output_info_cookie, &error);
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if(error != NULL)
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{
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qDebug() << "Error getting output_info";
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continue;
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}
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if(output_info == NULL)
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{
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qDebug() << "Error: output_info is null";
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continue;
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}
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QString name = QString::fromUtf8((const char *) xcb_randr_get_output_info_name(output_info), output_info->name_len);
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qDebug() << "Found output:" << name;
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// Is connected?
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if ( (xcb_randr_connection_t)(output_info->connection) != XCB_RANDR_CONNECTION_CONNECTED )
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{
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qDebug() << "Output is not connected";
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continue; // This output is not connected. Check other
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}
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// Is enabled?
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if( output_info->crtc == 0)
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{
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qDebug() << "Crtc is not null. Output not enabled.";
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continue;
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}
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xcb_randr_get_crtc_info_cookie_t crtc_info_cookie = xcb_randr_get_crtc_info_unchecked (QX11Info::connection(), output_info->crtc, 0);
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xcb_randr_get_crtc_info_reply_t *crtc_info =xcb_randr_get_crtc_info_reply (QX11Info::connection(), crtc_info_cookie, &error);
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if(error != NULL)
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{
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qDebug() << "Error getting output_info";
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continue;
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}
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if(crtc_info == NULL)
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{
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qDebug() << "Error: output_info is null";
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continue;
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}
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if( crtc_info->mode == XCB_NONE )
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{
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qDebug() << "No modes. Output not enabled.";
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continue;
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}
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// Output is connected and enabled. Get data:
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bool backlightIsSuported = false;
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long cur, min, max, backlight_max = -1;
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if (backlight_get(output) != -1)
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{
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if (backlight_get_with_range(output, cur, min, max))
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{
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backlightIsSuported = true;
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backlight_max = max - min;
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}
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}
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MonitorInfo monitor((int)output, name, backlight_max);
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if(backlightIsSuported)
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monitor.setBacklight(cur-min);
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monitor.setBrightness(gamma_brightness_get(output));
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qDebug() << "Output:" << name << "added";
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monitors.append(monitor);
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}
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return monitors;
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}
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void XRandrBrightness::setMonitorsSettings(QList<MonitorInfo> monitors)
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{
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if (!m_resources) {
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return;
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}
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auto *outputs = xcb_randr_get_screen_resources_current_outputs(m_resources.data());
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for (int i = 0; i < m_resources->num_outputs; ++i) {
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xcb_randr_output_t output = outputs[i];
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xcb_generic_error_t *error;
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xcb_randr_get_output_info_cookie_t output_info_cookie = xcb_randr_get_output_info (QX11Info::connection(), output, 0);
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xcb_randr_get_output_info_reply_t * output_info = xcb_randr_get_output_info_reply (QX11Info::connection(), output_info_cookie, &error);
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if(error != NULL)
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{
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qDebug() << "Error getting output_info";
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continue;
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}
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if(output_info == NULL)
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{
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qDebug() << "Error: output_info is null";
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continue;
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}
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// Is connected?
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if ( (xcb_randr_connection_t)(output_info->connection) != XCB_RANDR_CONNECTION_CONNECTED )
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continue; // This output is not connected. Check other
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// Is enabled?
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if( output_info->crtc == 0)
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continue;
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xcb_randr_get_crtc_info_cookie_t crtc_info_cookie = xcb_randr_get_crtc_info_unchecked (QX11Info::connection(), output_info->crtc, 0);
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xcb_randr_get_crtc_info_reply_t *crtc_info =xcb_randr_get_crtc_info_reply (QX11Info::connection(), crtc_info_cookie, &error);
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if(error != NULL)
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continue;
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if(crtc_info == NULL && crtc_info->mode == XCB_NONE )
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continue;
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QString name = QString::fromUtf8((const char *) xcb_randr_get_output_info_name(output_info), output_info->name_len);
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// Output is connected and enabled. Get data:
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bool backlightIsSuported = false;
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long cur, min, max, backlight_max = -1, backlight_value = 0;
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if (backlight_get(output) != -1)
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{
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if (backlight_get_with_range(output, cur, min, max))
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{
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backlightIsSuported = true;
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backlight_max = max - min;
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backlight_value = cur - min;
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}
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}
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float brightness_value = gamma_brightness_get(output);
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// Compare output info with settings and set it.
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for(MonitorInfo monitor: monitors)
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{
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if(monitor.id() == (int)output && monitor.name() == name)
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{
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// Set settings
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if(backlightIsSuported && monitor.backlight() != backlight_value)
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backlight_set(output, min+monitor.backlight());
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if(monitor.brightness() != brightness_value)
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gamma_brightness_set(output, monitor.brightness());
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break;
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}
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}
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}
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}
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