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169 lines
4.3 KiB
169 lines
4.3 KiB
/***************************************************************************
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xvidextwrap.cpp - description
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-------------------
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begin : Sat Jan 5 2002
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copyright : (C) 2002 by Michael v.Ostheim
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email : MvOstheim@web.de
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***************************************************************************/
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/***************************************************************************
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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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***************************************************************************/
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#include <tqnamespace.h>
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#include <tqevent.h>
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#include <X11/Xos.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/extensions/xf86vmode.h>
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#include <stdlib.h>
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#include <iostream>
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#include <fstream>
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#include <vector>
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#include <string>
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#include <sstream>
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#include <config.h>
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#include <kdebug.h>
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#include "xf86configpath.h"
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#include "xvidextwrap.h"
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using namespace std;
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XVidExtWrap::XVidExtWrap(bool* OK, const char* displayname) {
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if ((dpy = XOpenDisplay(displayname))) {
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screen = DefaultScreen(dpy);
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setGammaLimits(0.1, 10.0);
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*OK = true;
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}
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else {
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kdDebug() << "KGamma: unable to open display " << displayname << endl;
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*OK = false;
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}
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}
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XVidExtWrap::~XVidExtWrap() {
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if (dpy) XCloseDisplay(dpy);
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}
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int XVidExtWrap::_DefaultScreen() {
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return DefaultScreen(dpy);
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}
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/** We have to parse XF86Config to get the number of screens, because */
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/** ScreenCount() from X11/Xlib.h does not count correctly with xinerama */
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int XVidExtWrap::_ScreenCount() {
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int count = 0;
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bool section = false;
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XF86ConfigPath Path;
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std::ifstream in( Path.get() );
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if ( in.is_open() ) {
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std::string s, buf;
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std::vector<string> words;
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while (getline(in, s,'\n')) {
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words.clear();
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istringstream ss(s.c_str());
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while (ss >> buf) words.push_back(buf); // Split "s" into words
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if ( !words.empty() ) {
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if ( words[0] == "Section" && words.size() > 1 ) {
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if ( words[1] == "\"ServerLayout\"" ) section = true;
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}
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else if ( words[0] == "EndSection" )
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section = false;
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if ( section && words[0] == "Screen" ) ++count;
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}
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} //end while
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in.close();
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}
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if ( !count ) count = 1; //If failed,fill count with a valid value;
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return( count );
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}
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const char* XVidExtWrap::DisplayName() {
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return DisplayString(dpy);
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}
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void XVidExtWrap::setGamma(int channel, float gam, bool* OK) {
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XF86VidModeGamma gamma;
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if ( gam >= mingamma && gam <= maxgamma ) {
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if (!XF86VidModeGetGamma(dpy, screen, &gamma)) {
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kdDebug() << "KGamma: Unable to query gamma correction" << endl;
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if ( OK ) *OK = false;
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}
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else {
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switch (channel) {
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case Value:
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gamma.red = gam;
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gamma.green = gam;
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gamma.blue = gam; break;
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case Red:
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gamma.red = gam; break;
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case Green:
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gamma.green = gam; break;
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case Blue:
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gamma.blue = gam;
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};
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if (!XF86VidModeSetGamma(dpy, screen, &gamma)) {
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kdDebug() << "KGamma: Unable to set gamma correction" << endl;
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if ( OK ) *OK = false;
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}
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else {
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XFlush(dpy);
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if ( OK ) *OK = true;
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}
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}
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}
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}
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float XVidExtWrap::getGamma(int channel, bool* OK) {
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XF86VidModeGamma gamma;
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float gam = 0;
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if (!XF86VidModeGetGamma(dpy, screen, &gamma)) {
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kdDebug() << "KGamma: Unable to query gamma correction" << endl;
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if ( OK ) *OK = false;
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}
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else {
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switch (channel) {
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case Value:
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gam = gamma.red; break;
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case Red:
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gam = gamma.red; break;
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case Green:
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gam = gamma.green; break;
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case Blue:
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gam = gamma.blue;
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};
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if ( OK ) *OK = true;
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}
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return(gam);
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}
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void XVidExtWrap::setGammaLimits( float min, float max ) {
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mingamma = (min < 0.1) ? 0.1 : min;
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maxgamma = (max > 10.0) ? 10.0 : max;
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}
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#ifdef istringstream
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#undef istringstream
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#endif
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