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tdenetwork/kopete/libkopete/avdevice/kxv.cpp

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/*
* KDE Xv interface
*
* Copyright (C) 2001 George Staikos (staikos@kde.org)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <assert.h>
#include <qwindowdefs.h>
#include <qwidget.h>
#include <kdebug.h>
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "kxv.h"
#include <X11/X.h>
#include <X11/Xlib.h>
#include <X11/StringDefs.h>
#include <X11/Xatom.h>
#ifdef HAVE_XSHM
extern "C" {
#include <sys/shm.h>
#include <X11/extensions/XShm.h>
}
#endif
#ifdef HAVE_LIBXV
#include <X11/extensions/Xv.h>
#include <X11/extensions/Xvlib.h>
#endif
#ifdef HAVE_LIBXVMC
#include <X11/extensions/XvMC.h>
#include <X11/extensions/XvMClib.h>
#endif
KXv::KXv()
{
xv_adaptors = 0;
_devs.setAutoDelete(true);
}
KXv::~KXv()
{
kdDebug() << "KXv::~KXv: Close Xv connection." << endl;
_devs.clear();
#ifdef HAVE_LIBXV
if (xv_adaptors > 0)
XvFreeAdaptorInfo((XvAdaptorInfo *)xv_adaptor_info);
#endif
}
KXvDeviceList& KXv::devices()
{
return _devs;
}
bool KXv::haveXv()
{
#ifndef HAVE_LIBXV
return false;
#else
unsigned int tmp;
if (Success != XvQueryExtension(qt_xdisplay(),
&tmp,
&tmp,
&tmp,
&tmp,
&tmp))
return false;
return true;
#endif
}
KXv* KXv::connect(Drawable d)
{
KXv *xvptr;
xvptr = new KXv;
if (!xvptr->init(d)) {
kdDebug() << "KXv::connect: Xv init failed." << endl;
delete xvptr;
return NULL;
}
kdDebug() << "KXv::connect: Xv init completed." << endl;
return xvptr;
}
bool KXv::init(Drawable d)
{
#ifndef HAVE_LIBXV
return false;
#else
if (Success != XvQueryExtension(qt_xdisplay(),
&xv_version,
&xv_release,
&xv_request,
&xv_event,
&xv_error)) {
kdWarning() << "KXv::init: Xv extension not available." << endl;
return false;
}
#ifdef HAVE_LIBXVMC
// Causes crashes for some people.
// if (Success == XvMCQueryExtension(qt_xdisplay(),0,0)) {
// kdDebug() << "Found XvMC!" << endl;
// }
#endif
if (Success != XvQueryAdaptors(qt_xdisplay(),
d,
&xv_adaptors,
(XvAdaptorInfo **)&xv_adaptor_info)) {
// Note technically fatal... what to do?
kdWarning() << "KXv::init: XvQueryAdaptors failed." << endl;
}
XvAdaptorInfo *ai = (XvAdaptorInfo *)xv_adaptor_info;
for (unsigned int i = 0; i < xv_adaptors; i++) {
KXvDevice *xvd = new KXvDevice;
xvd->xv_type = ai[i].type;
xvd->xv_port = ai[i].base_id;
xvd->xv_name = ai[i].name;
xvd->xv_adaptor = i;
xvd->xv_nvisualformats = ai[i].num_formats;
xvd->xv_visualformats = ai[i].formats;
if (ai[i].type & XvInputMask &&
ai[i].type & XvVideoMask ) {
kdDebug() << "KXv::init: Xv VideoMask port " << ai[i].base_id << " was found."
<< " Device is: " << ai[i].name << "." << endl;
}
if (ai[i].type & XvInputMask &&
ai[i].type & XvImageMask ) {
kdDebug() << "KXv::init: Xv ImageMask port " << ai[i].base_id << " was found."
<< " Device is: " << ai[i].name << "." << endl;
}
if (xvd->init()) {
_devs.append(xvd);
} else {
delete xvd;
}
}
return true;
#endif
}
bool KXvDevice::grabStill(QImage* /*pix*/, int /*dw*/, int /*dh*/)
{
#ifndef HAVE_LIBXV
return false;
#else
return false;
#endif
}
int KXvDevice::displayImage(QWidget *widget, const unsigned char *const data, int w, int h, int dw, int dh)
{
if (!widget)
return -1;
return displayImage(widget->winId(), data, w, h, 0, 0, w, h, dw, dh);
}
int KXvDevice::displayImage(QWidget *widget, const unsigned char *const data, int w, int h, int x, int y, int sw, int sh, int dw, int dh)
{
if (!widget)
return -1;
return displayImage(widget->winId(), data, w, h, x, y, sw, sh, dw, dh);
}
int KXvDevice::displayImage(Window win, const unsigned char *const data, int w, int h, int dw, int dh)
{
return displayImage(win, data, w, h, 0, 0, w, h, dw, dh);
}
int KXvDevice::displayImage(Window win, const unsigned char *const data, int w, int h, int x, int y, int sw, int sh, int dw, int dh)
{
#ifndef HAVE_LIBXV
return -1;
#else
Q_ASSERT(xv_port != -1);
// Must be a video capable device!
if (!(xv_type & XvImageMask) || !(xv_type & XvInputMask)) {
kdWarning() << "KXvDevice::displayImage: This is not a video capable device." << endl;
return -1;
}
if (xv_image_w != w || xv_image_h != h || !xv_image)
rebuildImage(w, h, _shm);
if (!xv_image)
return -1;
if (win != xv_last_win && xv_gc) {
XFreeGC(qt_xdisplay(), xv_gc);
xv_gc = 0;
}
if (!xv_gc) {
xv_last_win = win;
xv_gc = XCreateGC(qt_xdisplay(), win, 0, NULL);
}
int rc = 0;
Q_ASSERT(xv_image);
if (!_shm) {
static_cast<XvImage*>(xv_image)->data =
(char *)const_cast<unsigned char*>(data);
rc = XvPutImage(qt_xdisplay(), xv_port, win, xv_gc,
static_cast<XvImage*>(xv_image), x, y, sw, sh, 0, 0, dw, dh);
} else {
#ifdef HAVE_XSHM
memcpy(static_cast<XvImage*>(xv_image)->data, data, static_cast<XvImage*>(xv_image)->data_size);
rc = XvShmPutImage(qt_xdisplay(), xv_port, win, xv_gc,
static_cast<XvImage*>(xv_image), x, y, sw, sh, 0, 0, dw, dh, 0);
#endif
}
XSync(qt_xdisplay(), False);
return rc;
#endif
}
bool KXvDevice::startVideo(QWidget *w, int dw, int dh)
{
if (!w) return false;
return startVideo(w->winId(), dw, dh);
}
bool KXvDevice::startVideo(Window w, int dw, int dh)
{
#ifndef HAVE_LIBXV
return false;
#else
int sx = 0, sy = 0, dx = 0, dy = 0, sw = dw, sh = dh;
// Must be a video capable device!
if (!(xv_type & XvVideoMask) || !(xv_type & XvInputMask)) {
kdWarning() << "KXvDevice::startVideo: This is not a video capable device." << endl;
return false;
}
if (videoStarted) stopVideo();
if (xv_port == -1) {
kdWarning() << "KXvDevice::startVideo: No xv_port." << endl;
return false;
}
if (w != xv_last_win && xv_gc) {
XFreeGC(qt_xdisplay(), xv_gc);
xv_gc = 0;
}
if (!xv_gc) {
xv_last_win = w;
xv_gc = XCreateGC(qt_xdisplay(), w, 0, NULL);
}
if (-1 != xv_encoding) {
sw = ((XvEncodingInfo *)xv_encoding_info)[xv_encoding].width;
sh = ((XvEncodingInfo *)xv_encoding_info)[xv_encoding].height;
}
// xawtv does this here:
// ng_ratio_fixup(&dw, &dh, &dx, &dy);
kdDebug() << "XvPutVideo: " << qt_xdisplay()
<< " " << xv_port << " " << w << " " << xv_gc
<< " " << sx << " " << sy << " " << sw << " " << sh
<< " " << dx << " " << dy << " " << dw << " " << dh << endl;
XvPutVideo(qt_xdisplay(), xv_port, w, xv_gc, sx, sy, sw, sh, dx, dy, dw, dh);
videoStarted = true;
videoWindow = w;
return true;
#endif
}
bool KXvDevice::stopVideo()
{
#ifndef HAVE_LIBXV
return false;
#else
if (!videoStarted)
return true;
if (xv_port == -1) {
kdWarning() << "KXvDevice::stopVideo: No xv_port." << endl;
return false;
}
XvStopVideo(qt_xdisplay(), xv_port, videoWindow);
videoStarted = false;
return true;
#endif
}
KXvDevice::KXvDevice()
{
xv_encoding_info = NULL;
xv_formatvalues = NULL;
xv_attr = NULL;
xv_port = -1;
xv_encoding = -1;
xv_name = QString::null;
xv_type = -1;
xv_adaptor = -1;
_shm = false;
#ifdef HAVE_LIBXV
xv_imageformat = 0x32595559; // FIXME (YUY2)
#ifdef HAVE_XSHM
if (!XShmQueryExtension(qt_xdisplay())) {
_haveShm = false;
} else {
_shm = true;
_haveShm = true;
}
xv_shminfo = new XShmSegmentInfo;
#else
xv_shminfo = 0;
#endif
#endif
xv_gc = 0;
xv_last_win = 0;
videoStarted = false;
_attrs.setAutoDelete(true);
xv_image = 0;
xv_image_w = 320;
xv_image_h = 200;
}
KXvDevice::~KXvDevice()
{
#ifdef HAVE_LIBXV
_attrs.clear();
if (videoStarted) stopVideo();
if (xv_encoding_info)
XvFreeEncodingInfo((XvEncodingInfo *)xv_encoding_info);
XFree(xv_formatvalues);
XFree(xv_attr);
#ifdef HAVE_XSHM
delete (XShmSegmentInfo*)xv_shminfo;
#endif
destroyImage();
#endif
if (xv_gc)
XFreeGC(qt_xdisplay(), xv_gc);
#ifdef HAVE_LIBXV
if (xv_port != -1)
XvUngrabPort(qt_xdisplay(), xv_port, CurrentTime);
#endif
}
bool KXvDevice::init()
{
#ifndef HAVE_LIBXV
return false;
#else
assert(xv_port != -1); // make sure we were prepped by KXv already.
if (XvGrabPort(qt_xdisplay(), xv_port, CurrentTime)) {
kdWarning() << "KXvDevice::init(): Unable to grab Xv port." << endl;
return false;
}
if (Success != XvQueryEncodings(qt_xdisplay(),
xv_port,
&xv_encodings,
(XvEncodingInfo **)&xv_encoding_info)) {
kdWarning() << "KXvDevice::init: Xv QueryEncodings failed. Dropping Xv support for this device." << endl;
return false;
}
// Package the encodings up nicely
for (unsigned int i = 0; i < xv_encodings; i++) {
//kdDebug() << "Added encoding: " << ((XvEncodingInfo *)xv_encoding_info)[i].name << endl;
_encodingList << ((XvEncodingInfo *)xv_encoding_info)[i].name;
}
xv_attr = XvQueryPortAttributes(qt_xdisplay(),
xv_port,
&xv_encoding_attributes);
XvAttribute *xvattr = (XvAttribute *)xv_attr;
kdDebug() << "Attributes for port " << xv_port << endl;
for (int i = 0; i < xv_encoding_attributes; i++) {
assert(xvattr);
kdDebug() << " -> " << xvattr[i].name
<< ((xvattr[i].flags & XvGettable) ? " get" : "")
<< ((xvattr[i].flags & XvSettable) ? " set" : "")
<< " Range: " << xvattr[i].min_value
<< " -> " << xvattr[i].max_value << endl;
KXvDeviceAttribute *xvda = new KXvDeviceAttribute;
xvda->name = xvattr[i].name;
xvda->min = xvattr[i].min_value;
xvda->max = xvattr[i].max_value;
xvda->flags = xvattr[i].flags;
_attrs.append(xvda);
}
XvImageFormatValues *fo;
fo = XvListImageFormats(qt_xdisplay(), xv_port, &xv_formats);
xv_formatvalues = (void *)fo;
kdDebug() << "Image formats for port " << xv_port << endl;
for (int i = 0; i < xv_formats; i++) {
assert(fo);
QString imout;
imout.sprintf(" 0x%x (%c%c%c%c) %s",
fo[i].id,
fo[i].id & 0xff,
(fo[i].id >> 8) & 0xff,
(fo[i].id >> 16) & 0xff,
(fo[i].id >> 24) & 0xff,
((fo[i].format == XvPacked) ?
"Packed" : "Planar"));
kdDebug() << imout << endl;
}
kdDebug() << "Disabling double buffering." << endl;
setAttribute("XV_DOUBLE_BUFFER", 0);
return true;
#endif
}
bool KXvDevice::supportsWidget(QWidget *w)
{
#ifndef HAVE_LIBXV
return false;
#else
for (int i = 0; i < xv_nvisualformats; i++) {
if (static_cast<XvFormat*>(xv_visualformats)[i].visual_id
== static_cast<Visual*>(w->x11Visual())->visualid) {
return true;
}
}
return false;
#endif
}
bool KXvDevice::isVideoSource()
{
#ifndef HAVE_LIBXV
return false;
#else
if (xv_type & XvVideoMask && xv_type & XvInputMask)
return true;
return false;
#endif
}
bool KXvDevice::isImageBackend()
{
#ifndef HAVE_LIBXV
return false;
#else
if (xv_type & XvImageMask && xv_type & XvInputMask)
return true;
return false;
#endif
}
const KXvDeviceAttributes& KXvDevice::attributes()
{
return _attrs;
}
bool KXvDevice::getAttributeRange(const QString& attribute, int *min, int *max)
{
for (KXvDeviceAttribute *at = _attrs.first(); at != NULL; at = _attrs.next()) {
if (at->name == attribute) {
if (min) *min = at->min;
if (max) *max = at->max;
return true;
}
}
return false;
}
bool KXvDevice::getAttribute(const QString& attribute, int *val)
{
#ifndef HAVE_LIBXV
return false;
#else
for (KXvDeviceAttribute *at = _attrs.first(); at != NULL; at = _attrs.next()) {
if (at->name == attribute) {
if (val)
XvGetPortAttribute(qt_xdisplay(), xv_port, at->atom(), val);
return true;
}
}
return false;
#endif
}
bool KXvDevice::setAttribute(const QString& attribute, int val)
{
#ifndef HAVE_LIBXV
return false;
#else
for (KXvDeviceAttribute *at = _attrs.first(); at != NULL; at = _attrs.next()) {
if (at->name == attribute) {
XvSetPortAttribute(qt_xdisplay(), xv_port, at->atom(), val);
XSync(qt_xdisplay(), False);
return true;
}
}
return false;
#endif
}
const QString& KXvDevice::name() const
{
return xv_name;
}
int KXvDevice::port() const
{
return xv_port;
}
const QStringList& KXvDevice::encodings() const
{
return _encodingList;
}
bool KXvDevice::encoding(QString& encoding)
{
#ifndef HAVE_LIBXV
return false;
#else
XvEncodingID enc;
for (KXvDeviceAttribute *at = _attrs.first(); at != 0L; at = _attrs.next()) {
if (at->name == "XV_ENCODING") {
XvGetPortAttribute(qt_xdisplay(), xv_port, at->atom(), (int*)&enc);
kdDebug() << "KXvDevice: encoding: " << enc << endl;
encoding = enc;
return true;
}
}
return false;
#endif
}
bool KXvDevice::setEncoding(const QString& e)
{
#ifdef HAVE_LIBXV
for (unsigned int i = 0; i < xv_encodings; i++) {
if (e == ((XvEncodingInfo *)xv_encoding_info)[i].name) {
xv_encoding = i;
return setAttribute("XV_ENCODING",
((XvEncodingInfo *)xv_encoding_info)[i].encoding_id);
}
}
#endif
return false;
}
bool KXvDevice::videoPlaying() const
{
return videoStarted;
}
bool KXvDevice::useShm(bool on)
{
#ifndef HAVE_XSHM
if (on) {
return false;
}
#endif
if (!_haveShm) {
return false;
}
if (_shm != on)
rebuildImage(xv_image_w, xv_image_h, on);
if (_haveShm) // This can change in rebuildImage()
_shm = on;
return _shm;
}
bool KXvDevice::usingShm() const
{
return _shm;
}
#include <unistd.h>
void KXvDevice::rebuildImage(int w, int h, bool shm)
{
if (xv_image) {
destroyImage();
}
#ifdef HAVE_LIBXV
if (!shm) {
xv_image = (void*)XvCreateImage(qt_xdisplay(), xv_port, xv_imageformat,
0, w, h);
if (!xv_image) {
kdWarning() << "KXvDevice::rebuildImage: XvCreateImage failed." << endl;
}
} else {
#ifdef HAVE_XSHM
memset(xv_shminfo, 0, sizeof(XShmSegmentInfo));
xv_image = (void*)XvShmCreateImage(qt_xdisplay(), xv_port, xv_imageformat,
0, w, h, static_cast<XShmSegmentInfo*>(xv_shminfo));
if (!xv_image) {
kdWarning() << "KXvDevice::rebuildImage: Error using SHM with Xv! Disabling SHM..." << endl;
_haveShm = false;
_shm = false;
xv_image = (void*)XvCreateImage(qt_xdisplay(), xv_port, xv_imageformat,
0, w, h);
if (!xv_image) {
kdWarning() << "KXvDevice::rebuildImage: XvCreateImage failed." << endl;
}
} else {
static_cast<XShmSegmentInfo*>(xv_shminfo)->shmid =
shmget(IPC_PRIVATE,
static_cast<XvImage*>(xv_image)->data_size,
IPC_CREAT | 0600);
static_cast<XShmSegmentInfo*>(xv_shminfo)->shmaddr =
(char*)shmat(static_cast<XShmSegmentInfo*>(xv_shminfo)->shmid, 0, 0);
static_cast<XShmSegmentInfo*>(xv_shminfo)->readOnly = True;
static_cast<XvImage*>(xv_image)->data =
static_cast<XShmSegmentInfo*>(xv_shminfo)->shmaddr;
XShmAttach(qt_xdisplay(), static_cast<XShmSegmentInfo*>(xv_shminfo));
XSync(qt_xdisplay(), False);
shmctl(static_cast<XShmSegmentInfo*>(xv_shminfo)->shmid, IPC_RMID, 0);
}
#endif
}
Q_ASSERT(xv_image != 0);
xv_image_w = w;
xv_image_h = h;
#endif
}
void KXvDevice::destroyImage()
{
#ifdef HAVE_LIBXV
if (!_shm) {
if (xv_image) {
static_cast<XvImage*>(xv_image)->data = 0;
}
} else {
if (xv_image) {
#ifdef HAVE_XSHM
shmdt(static_cast<XShmSegmentInfo*>(xv_shminfo)->shmaddr);
#endif
}
}
XFree(xv_image);
xv_image = 0;
#endif
}
Atom KXvDeviceAttribute::atom()
{
return XInternAtom(qt_xdisplay(), name.latin1(), False);
}
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