bool X11Grabber::Setup()
{
_x11Display = XOpenDisplay(NULL);
if (_x11Display == nullptr)
{
std::cerr << "X11GRABBER ERROR: Unable to open display";
if (getenv("DISPLAY")) {
std::cerr << " " << std::string(getenv("DISPLAY")) << std::endl;
} else {
std::cerr << ". DISPLAY environment variable not set" << std::endl;
}
return false;
}
_window = DefaultRootWindow(_x11Display);
int dummy, pixmaps_supported;
_XRenderAvailable = XRenderQueryExtension(_x11Display, &dummy, &dummy);
_XShmAvailable = XShmQueryExtension(_x11Display);
XShmQueryVersion(_x11Display, &dummy, &dummy, &pixmaps_supported);
_XShmPixmapAvailable = pixmaps_supported && XShmPixmapFormat(_x11Display) == ZPixmap;
return true;
}
static int
GGI_helper_x_shm_setup(struct ggi_helper *helper,
const char *args, void *argptr)
{
ggi_x_priv *priv;
int major, minor;
Bool pixmaps;
DPRINT_LIBS("GGI_helper_x_shm_setup(%p, %s, %p) called\n",
helper, args, argptr);
priv = GGIX_PRIV(helper->visual);
if (XShmQueryExtension(priv->disp) != True)
return GGI_ENOFUNC;
if (XShmQueryVersion(priv->disp, &major, &minor, &pixmaps) != True)
return GGI_ENOFUNC;
DPRINT_LIBS("X: MIT-SHM: SHM version %i.%i %s pixmap support\n",
major, minor, pixmaps ? "with" : "without");
priv->createfb = _ggi_xshm_create_ximage;
priv->freefb = _ggi_xshm_free_ximage;
return GGI_OK;
}
bool X11Grabber::Setup()
{
_x11Display = XOpenDisplay(NULL);
if (_x11Display == nullptr)
{
Error(_log, "Unable to open display");
if (getenv("DISPLAY"))
{
Error(_log, "%s",getenv("DISPLAY"));
}
else
{
Error(_log, "DISPLAY environment variable not set");
}
return false;
}
_window = DefaultRootWindow(_x11Display);
int dummy, pixmaps_supported;
_XRenderAvailable = XRenderQueryExtension(_x11Display, &dummy, &dummy);
_XShmAvailable = XShmQueryExtension(_x11Display);
XShmQueryVersion(_x11Display, &dummy, &dummy, &pixmaps_supported);
_XShmPixmapAvailable = pixmaps_supported && XShmPixmapFormat(_x11Display) == ZPixmap;
// Image scaling is performed by XRender when available, otherwise by ImageResampler
_imageResampler.setHorizontalPixelDecimation(_XRenderAvailable ? 1 : _horizontalDecimation);
_imageResampler.setVerticalPixelDecimation(_XRenderAvailable ? 1 : _verticalDecimation);
return true;
}
/**
* Create the capture
*/
static void *xshm_create(obs_data_t settings, obs_source_t source)
{
UNUSED_PARAMETER(source);
struct xshm_data *data = bzalloc(sizeof(struct xshm_data));
data->dpy = XOpenDisplay(NULL);
if (!data->dpy) {
blog(LOG_ERROR, "xshm-input: Unable to open X display !");
goto fail;
}
if (!XShmQueryExtension(data->dpy)) {
blog(LOG_ERROR, "xshm-input: XShm extension not found !");
goto fail;
}
data->use_xinerama = xinerama_is_active(data->dpy) ? true : false;
obs_enter_graphics();
data->cursor = xcursor_init(data->dpy);
obs_leave_graphics();
xshm_update(data, settings);
return data;
fail:
xshm_destroy(data);
return NULL;
}
int
evas_software_16_x11_x_can_do_shm(Display *d)
{
static Display *cached_d = NULL;
static int cached_result = 0;
if (d == cached_d) return cached_result;
cached_d = d;
if (XShmQueryExtension(d))
{
X_Output_Buffer *xob;
xob = evas_software_16_x11_x_output_buffer_new
(d, DefaultVisual(d, DefaultScreen(d)),
DefaultDepth(d, DefaultScreen(d)), 16, 16, 2, NULL);
if (!xob)
{
cached_result = 0;
return 0;
}
evas_software_16_x11_x_output_buffer_free(xob, 1);
cached_result = 1;
return 1;
}
cached_result = 0;
return 0;
}
void BC_Resources::init_shm(BC_WindowBase *window)
{
use_shm = 0;
int (*old_handler)(Display *, XErrorEvent *) =
XSetErrorHandler(BC_Resources::x_error_handler);
if(XShmQueryExtension(window->display))
{
XShmSegmentInfo test_shm;
memset(&test_shm,0,sizeof(test_shm));
XImage *test_image = XShmCreateImage(window->display, window->vis,
window->default_depth, ZPixmap, (char*)NULL, &test_shm, 5, 5);
BC_Resources::error = 0;
test_shm.shmid = shmget(IPC_PRIVATE, 5 * test_image->bytes_per_line, (IPC_CREAT | 0600));
if(test_shm.shmid != -1) {
char *data = (char *)shmat(test_shm.shmid, NULL, 0);
if(data != (void *)-1) {
shmctl(test_shm.shmid, IPC_RMID, 0);
test_shm.shmaddr = data;
test_shm.readOnly = 0;
if(XShmAttach(window->display, &test_shm)) {
XSync(window->display, False);
use_shm = 1;
}
shmdt(data);
}
}
XDestroyImage(test_image);
if(BC_Resources::error) use_shm = 0;
}
XSetErrorHandler(old_handler);
}
static Bool
NestedClientTryXShm(NestedClientPrivatePtr pPriv, int scrnIndex, int width, int height, int depth) {
int shmMajor, shmMinor;
Bool hasSharedPixmaps;
if (!XShmQueryExtension(pPriv->display)) {
xf86DrvMsg(scrnIndex, X_INFO, "XShmQueryExtension failed. Dropping XShm support.\n");
return FALSE;
}
if (XShmQueryVersion(pPriv->display, &shmMajor, &shmMinor,
&hasSharedPixmaps)) {
xf86DrvMsg(scrnIndex, X_INFO,
"XShm extension version %d.%d %s shared pixmaps\n",
shmMajor, shmMinor, (hasSharedPixmaps) ? "with" : "without");
}
pPriv->img = XShmCreateImage(pPriv->display,
DefaultVisualOfScreen(pPriv->screen),
depth,
ZPixmap,
NULL, /* data */
&pPriv->shminfo,
width,
height);
if (!pPriv->img) {
xf86DrvMsg(scrnIndex, X_ERROR, "XShmCreateImage failed. Dropping XShm support.\n");
return FALSE;
}
/* XXX: change the 0777 mask? */
pPriv->shminfo.shmid = shmget(IPC_PRIVATE,
pPriv->img->bytes_per_line *
pPriv->img->height,
IPC_CREAT | 0777);
if (pPriv->shminfo.shmid == -1) {
xf86DrvMsg(scrnIndex, X_ERROR, "shmget failed. Dropping XShm support.\n");
XDestroyImage(pPriv->img);
return FALSE;
}
pPriv->shminfo.shmaddr = (char *)shmat(pPriv->shminfo.shmid, NULL, 0);
if (pPriv->shminfo.shmaddr == (char *) -1) {
xf86DrvMsg(scrnIndex, X_ERROR, "shmaddr failed. Dropping XShm support.\n");
XDestroyImage(pPriv->img);
return FALSE;
}
pPriv->img->data = pPriv->shminfo.shmaddr;
pPriv->shminfo.readOnly = FALSE;
XShmAttach(pPriv->display, &pPriv->shminfo);
pPriv->usingShm = TRUE;
return TRUE;
}
static int shm_available (void)
{
#if SHM_SUPPORT_LINKS == 1
if (XShmQueryExtension (display))
return 1;
#endif
return 0;
}
// ######################################################################
AutomateXWin::AutomateXWin(const char* win_name) :
itsDisplay(NULL),
itsScreen(0),
itsImage(NULL),
itsWidth(0),
itsHeight(0),
itsDepth(0)
{
char *dispName = XDisplayName(NULL);
unsigned num_tries;
int event_base, error_base;
int major_version, minor_version;
itsDisplay = XOpenDisplay(dispName);
if(!itsDisplay)
LFATAL("XOpenDisplay(%s) failed\n", dispName);
if (!XTestQueryExtension (itsDisplay, &event_base, &error_base, &major_version, &minor_version)) {
XCloseDisplay(itsDisplay);
LFATAL("XTest extension not supported on server");
}
LINFO("XTestQueryExtension passed.");
LINFO("XTest information for server \"%s\":", DisplayString(itsDisplay));
LINFO(" Major version: %d", major_version);
LINFO(" Minor version: %d", minor_version);
LINFO(" First event number: %d", event_base);
LINFO(" First error number: %d", error_base);
itsScreen = DefaultScreen(itsDisplay);
itsRootWin = RootWindow(itsDisplay, itsScreen);
for(num_tries=0;;)
{
itsWindow = XWindowByName(itsDisplay, itsRootWin, win_name);
if(itsWindow) break;
if(++num_tries == 100)
LFATAL("XWindowByName\n");
usleep(20000);
}
XFlush(itsDisplay);
XSync(itsDisplay, False);
#ifdef USE_SHM
if(!XShmQueryExtension(itsDisplay))
LFATAL("XShmQueryExtension");
#endif
GetWindowGeometry();
if(!XMatchVisualInfo(itsDisplay, itsScreen, itsDepth, DirectColor, &itsVInfo))
{
return;
}
}
static bool allocate_xvimage(struct vo *vo, int foo)
{
struct xvctx *ctx = vo->priv;
struct vo_x11_state *x11 = vo->x11;
// align it for faster OSD rendering (draw_bmp.c swscale usage)
int aligned_w = FFALIGN(ctx->image_width, 32);
#if HAVE_SHM
if (x11->display_is_local && XShmQueryExtension(x11->display)) {
ctx->Shmem_Flag = 1;
x11->ShmCompletionEvent = XShmGetEventBase(x11->display)
+ ShmCompletion;
} else {
ctx->Shmem_Flag = 0;
MP_INFO(vo, "Shared memory not supported\nReverting to normal Xv.\n");
}
if (ctx->Shmem_Flag) {
ctx->xvimage[foo] =
(XvImage *) XvShmCreateImage(x11->display, ctx->xv_port,
ctx->xv_format, NULL,
aligned_w, ctx->image_height,
&ctx->Shminfo[foo]);
if (!ctx->xvimage[foo])
return false;
ctx->Shminfo[foo].shmid = shmget(IPC_PRIVATE,
ctx->xvimage[foo]->data_size,
IPC_CREAT | 0777);
ctx->Shminfo[foo].shmaddr = (char *) shmat(ctx->Shminfo[foo].shmid, 0,
0);
if (ctx->Shminfo[foo].shmaddr == (void *)-1)
return false;
ctx->Shminfo[foo].readOnly = False;
ctx->xvimage[foo]->data = ctx->Shminfo[foo].shmaddr;
XShmAttach(x11->display, &ctx->Shminfo[foo]);
XSync(x11->display, False);
shmctl(ctx->Shminfo[foo].shmid, IPC_RMID, 0);
} else
#endif
{
ctx->xvimage[foo] =
(XvImage *) XvCreateImage(x11->display, ctx->xv_port,
ctx->xv_format, NULL, aligned_w,
ctx->image_height);
if (!ctx->xvimage[foo])
return false;
ctx->xvimage[foo]->data = av_malloc(ctx->xvimage[foo]->data_size);
if (!ctx->xvimage[foo]->data)
return false;
XSync(x11->display, False);
}
struct mp_image img = get_xv_buffer(vo, foo);
img.w = aligned_w;
mp_image_clear(&img, 0, 0, img.w, img.h);
return true;
}
static int
can_use_shm(Display *dpy)
{
int major, minor, has_pixmap;
if (!XShmQueryExtension(dpy))
return 0;
XShmQueryVersion(dpy, &major, &minor, &has_pixmap);
return has_pixmap;
}
uchar*
attachscreen(Rectangle *r, ulong *chan, int *d, int *width, int *softscreen)
{
int depth;
Xsize &= ~0x3; /* ensure multiple of 4 */
r->min.x = 0;
r->min.y = 0;
r->max.x = Xsize;
r->max.y = Ysize;
if(!triedscreen){
xinitscreen(Xsize, Ysize, displaychan, chan, d);
/*
* moved xproc from here to end since it could cause an expose event and
* hence a flushmemscreen before xscreendata is initialized
*/
}
else{
*chan = displaychan;
*d = displaydepth;
}
*width = (Xsize/4)*(*d/8);
*softscreen = 1;
displaychan = *chan;
displaydepth = *d;
/* check for X Shared Memory Extension */
is_shm = XShmQueryExtension(xdisplay);
if(!is_shm || !makesharedfb()){
is_shm = 0;
depth = xscreendepth;
if(depth == 24)
depth = 32;
/* allocate virtual screen */
gscreendata = malloc(Xsize * Ysize * (displaydepth >> 3));
xscreendata = malloc(Xsize * Ysize * (depth >> 3));
if(gscreendata == nil || xscreendata == nil) {
fprint(2, "emu: can not allocate virtual screen buffer (%dx%dx%d[%d])\n", Xsize, Ysize, displaydepth, depth);
return 0;
}
img = XCreateImage(xdisplay, xvis, xscreendepth, ZPixmap, 0,
(char*)xscreendata, Xsize, Ysize, 8, Xsize * (depth >> 3));
if(img == nil) {
fprint(2, "emu: can not allocate virtual screen buffer (%dx%dx%d)\n", Xsize, Ysize, depth);
return 0;
}
}
// gcc -Wall x11shot2.c -o x11shot2 -lX11 -lX11ext -lpng;./x11shot2 <wid> >/tmp/screenshot.png
int main(int argc,char* argv[]){
if(argc<2){
fprintf(stderr, "usage:x11shot2 <wid> >/tmp/screenshot.png\n");
exit(1);
}
int wid=(int)strtol(argv[1], NULL, 0);
sscanf(argv[1], "%x", &wid);
XShmSegmentInfo shminfo;
int x_off=0,y_off=0;
Display *dpy=XOpenDisplay(getenv("DISPLAY"));
XImage *image;
XWindowAttributes wattr;
if (dpy == NULL) {
fprintf(stderr, "Cannot open display\n");
exit(1);
}
XGetWindowAttributes(dpy,wid,&wattr);
fprintf(stderr,"wid:0x%x wattr x:%d y:%d w:%d h:%d begin capture\n"
,wid
,wattr.x,wattr.y
,wattr.width,wattr.height);
if(!XShmQueryExtension(dpy)){
fprintf(stderr, "can't not use shm!\n");
exit(1);
}
int scr = XDefaultScreen(dpy);
image = XShmCreateImage(dpy,
DefaultVisual(dpy, scr),
DefaultDepth(dpy, scr),
ZPixmap,
NULL,
&shminfo,
wattr.width,wattr.height);
shminfo.shmid = shmget(IPC_PRIVATE,
image->bytes_per_line * image->height,
IPC_CREAT|0777);
shminfo.shmaddr = image->data = shmat(shminfo.shmid, 0, 0);
shminfo.readOnly = False;
if (!XShmAttach(dpy, &shminfo)) {
fprintf(stderr, "Fatal: Failed to attach shared memory!\n");
exit(1);
}
if(!XShmGetImage(dpy,wid,image,x_off,y_off,AllPlanes))
{
die("Can't get image");
}
pngstdout(image);
XDestroyImage(image);
return 0;
};
static void XInit(int *argc, char ***argv) {
XtToolkitInitialize();
xi.context = XtCreateApplicationContext();
XtAppSetFallbackResources(xi.context, fallback_resources);
xi.disp = XtOpenDisplay(xi.context, NULL, "NMovie", "NMovie", NULL, 0,
argc, *argv);
if (!xi.disp)
ErrorExit(ERROR_BAD_PARM,"Unable to open display");
shmext = XShmQueryExtension(xi.disp);
xi.screenno = DefaultScreen(xi.disp);
}
bool ensureImage(int w, int h) {
if (ximage && ximage->width == w && ximage->height == h)
return true;
warn_bad_pitch = true;
destroyX11Image();
use_shm = XShmQueryExtension(display);
qDebug("use x11 shm: %d", use_shm);
if (!use_shm)
goto no_shm;
// data seems not aligned
ximage = XShmCreateImage(display, vinfo.visual, depth, ZPixmap, NULL, &shm, w, h);
if (!ximage) {
qWarning("XShmCreateImage error");
goto no_shm;
}
shm.shmid = shmget(IPC_PRIVATE, ximage->bytes_per_line*ximage->height, IPC_CREAT | 0777);
if (shm.shmid < 0) {
qWarning("shmget error");
goto no_shm;
}
shm.shmaddr = (char *)shmat(shm.shmid, 0, 0);
if (shm.shmaddr == (char*)-1) {
if (!ximage_data.isEmpty())
ximage->data = NULL;
XDestroyImage(ximage);
ximage = NULL;
ximage_data.clear();
qWarning("Shared memory error,disabling ( seg id error )");
goto no_shm;
}
ximage->data = shm.shmaddr;
shm.readOnly = False;
if (!XShmAttach(display, &shm)) {
qWarning("Attach to shm failed! try to use none shm");
goto no_shm;
}
XSync(display, False);
shmctl(shm.shmid, IPC_RMID, 0);
pixfmt = pixelFormat(ximage);
return true;
no_shm:
ximage = XCreateImage(display, vinfo.visual, depth, ZPixmap, 0, NULL, w, h, 8, 0);
if (!ximage)
return false;
pixfmt = pixelFormat(ximage);
ximage->data = NULL;
XSync(display, False);
// TODO: align 16 or?
ximage_data.resize(ximage->bytes_per_line*ximage->height + 32);
return true;
}
static gboolean
ccm_display_init_shm (CCMDisplay * self)
{
g_return_val_if_fail (self != NULL, FALSE);
int major, minor;
if (XShmQueryExtension (self->priv->xdisplay) &&
XShmQueryVersion (self->priv->xdisplay, &major, &minor,
&self->priv->shm_shared_pixmap))
{
self->priv->shm.available = TRUE;
return TRUE;
}
return FALSE;
}
void InitializeX11(uint16_t x_off, uint16_t y_off, uint16_t *w, uint16_t *h){
printf("Loading X11 Module\n");
dpy = XOpenDisplay("");
default_src = XDefaultScreen(dpy);
CaptureWin = Select_Window();
XGetWindowAttributes(dpy, CaptureWin, &gwa);
*w = gwa.width;
*h = gwa.height;
#ifdef X11_USE_XSHM_
use_shm = XShmQueryExtension(dpy);
if(use_shm) {
printf("XShmQueryExtension(dpy);\n");
image = XShmCreateImage(dpy,
DefaultVisual(dpy, default_src),
DefaultDepth(dpy, default_src),
ZPixmap,
NULL,
&shminfo,
gwa.width, gwa.height);
shminfo.shmid = shmget( IPC_PRIVATE,
image->bytes_per_line * image->height,
IPC_CREAT|0777);
if(shminfo.shmid == -1) {
printf("shminfo.shmid == -1\n");
return;
}
shminfo.shmaddr = image->data = (char*) shmat(shminfo.shmid, 0, 0);
shminfo.readOnly = False;
if (!XShmAttach(dpy, &shminfo)) {
printf("!XShmAttach(dpy, &shminfo)\n");
return;
}
}
else{
#endif /*X11_USE_XSHM_*/
image = XGetImage(dpy, CaptureWin,
x_off,y_off,
gwa.width,gwa.height,
AllPlanes, ZPixmap);
#ifdef X11_USE_XSHM_
}
#endif /*X11_USE_XSHM_*/
printf("X11 Module Running\n");
}
void XWindow::CreateXImage(int width, int height)
{
#ifdef HAVE_SHM
if (_useShm) {
if (_isInitialized && _XShmInfo.shmaddr) {
XShmDetach (_display, &_XShmInfo);
shmdt (_XShmInfo.shmaddr);
}
} else
#endif
{
if (_XImage) {
_XImage->data = _imageDataOrig;
}
}
if (_XImage)
XDestroyImage(_XImage);
_imageDataOrig = NULL;
#ifdef HAVE_SHM
if (XShmQueryExtension (_display)) {
_useShm = true;
PTRACE(1, "X11\tXQueryShmExtension success");
}
else {
_useShm = false;
PTRACE(1, "X11\tXQueryShmExtension failed");
}
if (_useShm)
ShmAttach(width, height);
if (_useShm) {
PTRACE(4, "X11\tUsing shm extension");
}
else
#endif
{
_XImage = XCreateImage(_display, _XVInfo.visual, _depth, ZPixmap, 0, NULL, width, height, 8, 0);
_imageDataOrig = (char*)malloc(width * height * 4 + 32);
_XImage->data = _imageDataOrig + 16 - ((long)_imageDataOrig & 15);
memset(_XImage->data, 0, width * 4 * height);
}
}
glDispyWidget::glDispyWidget(QWidget *parent) :
QGLWidget(parent)
{
//initialise X display
xDisplay = XOpenDisplay(":0");
screenNumber = DefaultScreen(xDisplay);
rootWindow = RootWindow(xDisplay, screenNumber);
xDisplayWidth = XDisplayWidth(xDisplay, screenNumber);
xDisplayHeight = XDisplayHeight(xDisplay, screenNumber);
useShm = XShmQueryExtension(xDisplay);
if (useShm) {
img = XShmCreateImage(xDisplay, DefaultVisual(xDisplay, screenNumber),
DefaultDepth(xDisplay, screenNumber),
ZPixmap, NULL, &shminfo,
xDisplayWidth, xDisplayHeight );
if(img == NULL) {
qDebug() << "can't get shm image";
return;
}
shminfo.shmid = shmget(IPC_PRIVATE, img->bytes_per_line*img->height,
IPC_CREAT | 0777 );
shminfo.shmaddr = img->data = (char *)shmat(shminfo.shmid, 0,0);
shminfo.readOnly = false;
XShmAttach(xDisplay, &shminfo);
}
//make this widget current GL context
makeCurrent();
//render_fbo = new QGLFramebufferObject(512, 512);
//render_fbo->bind();
initializeGL();
//glColor3f(1,1,0);
//glBegin(GL_POLYGON);
//glVertex2f(0,0);
//glVertex2f(100,500);
//glVertex2f(500,100);
//glEnd();
//render_fbo->release();
timer = new QTimer();
QObject::connect(timer,SIGNAL(timeout()),this,SLOT(redraw()));
timer->start(100);
}
int BC_Capture::init_window(char *display_path)
{
int bits_per_pixel;
if(display_path && display_path[0] == 0) display_path = NULL;
if((display = XOpenDisplay(display_path)) == NULL)
{
printf(_("cannot connect to X server.\n"));
if(getenv("DISPLAY") == NULL)
printf(_("'DISPLAY' environment variable not set.\n"));
exit(-1);
return 1;
}
screen = DefaultScreen(display);
rootwin = RootWindow(display, screen);
vis = DefaultVisual(display, screen);
default_depth = DefaultDepth(display, screen);
client_byte_order = (*(u_int32_t*)"a ") & 0x00000001;
server_byte_order = (XImageByteOrder(display) == MSBFirst) ? 0 : 1;
char *data = 0;
XImage *ximage;
ximage = XCreateImage(display,
vis,
default_depth,
ZPixmap,
0,
data,
16,
16,
8,
0);
bits_per_pixel = ximage->bits_per_pixel;
XDestroyImage(ximage);
bitmap_color_model = BC_WindowBase::evaluate_color_model(client_byte_order, server_byte_order, bits_per_pixel);
// test shared memory
// This doesn't ensure the X Server is on the local host
if(use_shm && !XShmQueryExtension(display))
{
use_shm = 0;
}
return 0;
}
/**
* Start the capture
*/
static void xshm_capture_start(struct xshm_data *data)
{
const char *server = (data->advanced && *data->server)
? data->server : NULL;
data->dpy = XOpenDisplay(server);
if (!data->dpy) {
blog(LOG_ERROR, "Unable to open X display !");
goto fail;
}
if (!XShmQueryExtension(data->dpy)) {
blog(LOG_ERROR, "XShm extension not found !");
goto fail;
}
data->use_xinerama = xinerama_is_active(data->dpy) ? true : false;
if (xshm_update_geometry(data) < 0) {
blog(LOG_ERROR, "failed to update geometry !");
goto fail;
}
data->xshm = xshm_attach(data->dpy, data->screen,
data->width, data->height);
if (!data->xshm) {
blog(LOG_ERROR, "failed to attach shm !");
goto fail;
}
obs_enter_graphics();
data->cursor = xcursor_init(data->dpy);
xcursor_offset(data->cursor, data->x_org, data->y_org);
xshm_resize_texture(data);
obs_leave_graphics();
return;
fail:
xshm_capture_stop(data);
}
QXlibScreen::QXlibScreen()
: mFormat(QImage::Format_RGB32)
#if !defined(QT_NO_OPENGL) && defined(QT_OPENGL_ES_2)
, mEGLDisplay(0)
#endif
{
char *display_name = getenv("DISPLAY");
Display *display = XOpenDisplay(display_name);
mDisplay = new QXlibDisplay(display);
#ifndef DONT_USE_MIT_SHM
int MIT_SHM_extension_supported = XShmQueryExtension (mDisplay->nativeDisplay());
Q_ASSERT(MIT_SHM_extension_supported == True);
#endif
original_x_errhandler = XSetErrorHandler(qt_x_errhandler);
if (qgetenv("DO_X_SYNCHRONIZE").toInt())
XSynchronize(mDisplay->nativeDisplay(), true);
mScreen = DefaultScreen(mDisplay->nativeDisplay());
XSelectInput(mDisplay->nativeDisplay(),rootWindow(), KeymapStateMask | EnterWindowMask | LeaveWindowMask | PropertyChangeMask);
int width = DisplayWidth(mDisplay->nativeDisplay(), mScreen);
int height = DisplayHeight(mDisplay->nativeDisplay(), mScreen);
mGeometry = QRect(0,0,width,height);
int physicalWidth = DisplayWidthMM(mDisplay->nativeDisplay(), mScreen);
int physicalHeight = DisplayHeightMM(mDisplay->nativeDisplay(), mScreen);
mPhysicalSize = QSize(physicalWidth,physicalHeight);
int xSocketNumber = XConnectionNumber(mDisplay->nativeDisplay());
mDepth = DefaultDepth(mDisplay->nativeDisplay(),mScreen);
#ifdef MYX11_DEBUG
qDebug() << "X socket:"<< xSocketNumber;
#endif
QSocketNotifier *sock = new QSocketNotifier(xSocketNumber, QSocketNotifier::Read, this);
connect(sock, SIGNAL(activated(int)), this, SLOT(eventDispatcher()));
mCursor = new QXlibCursor(this);
mKeyboard = new QXlibKeyboard(this);
}
static PyObject *
tkwin_ShmCheckExtension(TkWinObject * self, PyObject * args)
{
PyObject * result;
if (XShmQueryExtension(Tk_Display(self->tkwin)))
{
int (*orighandler)(Display *, XErrorEvent *);
shmerror = 0;
orighandler = XSetErrorHandler(shm_error_handler);
result = try_shm_image(self);
XSetErrorHandler(orighandler);
}
else
{
Py_INCREF(Py_None);
result = Py_None;
}
return result;
}
/**
* Return true if the screen supports the extension.
*/
boolean
x11_screen_support(struct x11_screen *xscr, enum x11_screen_extension ext)
{
boolean supported = FALSE;
switch (ext) {
case X11_SCREEN_EXTENSION_XSHM:
supported = XShmQueryExtension(xscr->dpy);
break;
#ifdef GLX_DIRECT_RENDERING
case X11_SCREEN_EXTENSION_GLX:
supported = x11_screen_init_glx(xscr);
break;
case X11_SCREEN_EXTENSION_DRI2:
supported = x11_screen_init_dri2(xscr);
break;
#endif
default:
break;
}
return supported;
}
static int x11_shadow_xshm_init(x11ShadowSubsystem* subsystem)
{
Bool pixmaps;
int major, minor;
XGCValues values;
if (!XShmQueryExtension(subsystem->display))
return -1;
if (!XShmQueryVersion(subsystem->display, &major, &minor, &pixmaps))
return -1;
if (!pixmaps)
return -1;
subsystem->fb_shm_info.shmid = -1;
subsystem->fb_shm_info.shmaddr = (char*) -1;
subsystem->fb_shm_info.readOnly = False;
subsystem->fb_image = XShmCreateImage(subsystem->display, subsystem->visual, subsystem->depth,
ZPixmap, NULL, &(subsystem->fb_shm_info), subsystem->width, subsystem->height);
if (!subsystem->fb_image)
{
WLog_ERR(TAG, "XShmCreateImage failed");
return -1;
}
subsystem->fb_shm_info.shmid = shmget(IPC_PRIVATE,
subsystem->fb_image->bytes_per_line * subsystem->fb_image->height, IPC_CREAT | 0600);
if (subsystem->fb_shm_info.shmid == -1)
{
WLog_ERR(TAG, "shmget failed");
return -1;
}
subsystem->fb_shm_info.shmaddr = shmat(subsystem->fb_shm_info.shmid, 0, 0);
subsystem->fb_image->data = subsystem->fb_shm_info.shmaddr;
if (subsystem->fb_shm_info.shmaddr == ((char*) -1))
{
WLog_ERR(TAG, "shmat failed");
return -1;
}
if (!XShmAttach(subsystem->display, &(subsystem->fb_shm_info)))
return -1;
XSync(subsystem->display, False);
shmctl(subsystem->fb_shm_info.shmid, IPC_RMID, 0);
subsystem->fb_pixmap = XShmCreatePixmap(subsystem->display,
subsystem->root_window, subsystem->fb_image->data, &(subsystem->fb_shm_info),
subsystem->fb_image->width, subsystem->fb_image->height, subsystem->fb_image->depth);
XSync(subsystem->display, False);
if (!subsystem->fb_pixmap)
return -1;
values.subwindow_mode = IncludeInferiors;
values.graphics_exposures = False;
subsystem->xshm_gc = XCreateGC(subsystem->display, subsystem->root_window,
GCSubwindowMode | GCGraphicsExposures, &values);
XSetFunction(subsystem->display, subsystem->xshm_gc, GXcopy);
XSync(subsystem->display, False);
return 1;
}
static DFBResult
InitLocal( DFBX11 *x11, DFBX11Shared *shared, CoreDFB *core )
{
int i, n, d;
XInitThreads();
x11->shared = shared;
x11->core = core;
x11->display = XOpenDisplay(getenv("DISPLAY"));
if (!x11->display) {
D_ERROR("X11: Error in XOpenDisplay for '%s'\n", getenv("DISPLAY"));
return DFB_INIT;
}
x11->screenptr = DefaultScreenOfDisplay(x11->display);
x11->screennum = DefaultScreen(x11->display);
d = DefaultDepthOfScreen(x11->screenptr);
for (i=0; i<x11->screenptr->ndepths; i++) {
const Depth *depth = &x11->screenptr->depths[i];
for (n=0; n<depth->nvisuals; n++) {
Visual *visual = &depth->visuals[n];
D_DEBUG_AT( X11_Core, "[Visual %d] ID 0x%02lx, depth %d, RGB 0x%06lx/0x%06lx/0x%06lx, %d bpRGB, %d entr.\n",
n, visual->visualid, depth->depth,
visual->red_mask, visual->green_mask, visual->blue_mask,
visual->bits_per_rgb, visual->map_entries );
if (depth->depth != d)
continue;
switch (depth->depth) {
case 32:
if (visual->red_mask == 0xff0000 &&
visual->green_mask == 0x00ff00 &&
visual->blue_mask == 0x0000ff &&
!x11->visuals[DFB_PIXELFORMAT_INDEX(DSPF_ARGB)])
x11->visuals[DFB_PIXELFORMAT_INDEX(DSPF_ARGB)] = visual;
break;
case 24:
if (visual->red_mask == 0xff0000 &&
visual->green_mask == 0x00ff00 &&
visual->blue_mask == 0x0000ff &&
!x11->visuals[DFB_PIXELFORMAT_INDEX(DSPF_RGB32)])
x11->visuals[DFB_PIXELFORMAT_INDEX(DSPF_RGB32)] = visual;
break;
case 16:
if (visual->red_mask == 0xf800 &&
visual->green_mask == 0x07e0 &&
visual->blue_mask == 0x001f &&
!x11->visuals[DFB_PIXELFORMAT_INDEX(DSPF_RGB16)])
x11->visuals[DFB_PIXELFORMAT_INDEX(DSPF_RGB16)] = visual;
break;
case 15:
if (visual->red_mask == 0x7c00 &&
visual->green_mask == 0x03e0 &&
visual->blue_mask == 0x001f &&
!x11->visuals[DFB_PIXELFORMAT_INDEX(DSPF_RGB555)])
x11->visuals[DFB_PIXELFORMAT_INDEX(DSPF_RGB555)] = visual;
break;
}
}
}
if (XShmQueryExtension( x11->display ))
XShmQueryVersion( x11->display, &x11->xshm_major, &x11->xshm_minor, &x11->use_shm );
x11->screen = dfb_screens_register( NULL, x11, x11PrimaryScreenFuncs );
dfb_layers_register( x11->screen, x11, x11PrimaryLayerFuncs );
dfb_layers_register( x11->screen, x11, x11PrimaryLayerFuncs );
dfb_layers_register( x11->screen, x11, x11PrimaryLayerFuncs );
return DFB_OK;
}
static void getMyXImage(void)
{
#ifdef HAVE_SHM
if (mLocalDisplay && XShmQueryExtension(mDisplay))
Shmem_Flag = 1;
else
{
Shmem_Flag = 0;
mp_msg(MSGT_VO, MSGL_WARN,
"Shared memory not supported\nReverting to normal Xlib\n");
}
if (Shmem_Flag)
CompletionType = XShmGetEventBase(mDisplay) + ShmCompletion;
if (Shmem_Flag)
{
myximage =
XShmCreateImage(mDisplay, vinfo.visual, depth, ZPixmap, NULL,
&Shminfo[0], image_width, image_height);
if (myximage == NULL)
{
mp_msg(MSGT_VO, MSGL_WARN,
"Shared memory error,disabling ( Ximage error )\n");
goto shmemerror;
}
Shminfo[0].shmid = shmget(IPC_PRIVATE,
myximage->bytes_per_line *
myximage->height, IPC_CREAT | 0777);
if (Shminfo[0].shmid < 0)
{
XDestroyImage(myximage);
mp_msg(MSGT_VO, MSGL_V, "%s\n", strerror(errno));
//perror( strerror( errno ) );
mp_msg(MSGT_VO, MSGL_WARN,
"Shared memory error,disabling ( seg id error )\n");
goto shmemerror;
}
Shminfo[0].shmaddr = (char *) shmat(Shminfo[0].shmid, 0, 0);
if (Shminfo[0].shmaddr == ((char *) -1))
{
XDestroyImage(myximage);
if (Shminfo[0].shmaddr != ((char *) -1))
shmdt(Shminfo[0].shmaddr);
mp_msg(MSGT_VO, MSGL_WARN,
"Shared memory error,disabling ( address error )\n");
goto shmemerror;
}
myximage->data = Shminfo[0].shmaddr;
ImageData = (unsigned char *) myximage->data;
Shminfo[0].readOnly = False;
XShmAttach(mDisplay, &Shminfo[0]);
XSync(mDisplay, False);
if (gXErrorFlag)
{
XDestroyImage(myximage);
shmdt(Shminfo[0].shmaddr);
mp_msg(MSGT_VO, MSGL_WARN, "Shared memory error,disabling.\n");
gXErrorFlag = 0;
goto shmemerror;
} else
shmctl(Shminfo[0].shmid, IPC_RMID, 0);
{
static int firstTime = 1;
if (firstTime)
{
mp_msg(MSGT_VO, MSGL_V, "Sharing memory.\n");
firstTime = 0;
}
}
} else
{
shmemerror:
Shmem_Flag = 0;
#endif
myximage = XCreateImage(mDisplay, vinfo.visual, depth, ZPixmap,
0, NULL, image_width, image_height, 8, 0);
ImageDataOrig = malloc(myximage->bytes_per_line * image_height + 32);
myximage->data = ImageDataOrig + 16 - ((long)ImageDataOrig & 15);
memset(myximage->data, 0, myximage->bytes_per_line * image_height);
ImageData = myximage->data;
#ifdef HAVE_SHM
}
#endif
}
static void getMyXImage(struct priv *p)
{
struct vo *vo = p->vo;
#ifdef HAVE_SHM
if (vo->x11->display_is_local && XShmQueryExtension(vo->x11->display))
p->Shmem_Flag = 1;
else {
p->Shmem_Flag = 0;
mp_msg(MSGT_VO, MSGL_WARN,
"Shared memory not supported\nReverting to normal Xlib\n");
}
if (p->Shmem_Flag)
p->CompletionType = XShmGetEventBase(vo->x11->display) + ShmCompletion;
if (p->Shmem_Flag) {
p->myximage =
XShmCreateImage(vo->x11->display, p->vinfo.visual, p->depth,
ZPixmap, NULL, &p->Shminfo[0], p->image_width,
p->image_height);
if (p->myximage == NULL) {
mp_msg(MSGT_VO, MSGL_WARN,
"Shared memory error,disabling ( Ximage error )\n");
goto shmemerror;
}
p->Shminfo[0].shmid = shmget(IPC_PRIVATE,
p->myximage->bytes_per_line *
p->myximage->height,
IPC_CREAT | 0777);
if (p->Shminfo[0].shmid < 0) {
XDestroyImage(p->myximage);
mp_msg(MSGT_VO, MSGL_V, "%s\n", strerror(errno));
//perror( strerror( errno ) );
mp_msg(MSGT_VO, MSGL_WARN,
"Shared memory error,disabling ( seg id error )\n");
goto shmemerror;
}
p->Shminfo[0].shmaddr = (char *) shmat(p->Shminfo[0].shmid, 0, 0);
if (p->Shminfo[0].shmaddr == ((char *) -1)) {
XDestroyImage(p->myximage);
if (p->Shminfo[0].shmaddr != ((char *) -1))
shmdt(p->Shminfo[0].shmaddr);
mp_msg(MSGT_VO, MSGL_WARN,
"Shared memory error,disabling ( address error )\n");
goto shmemerror;
}
p->myximage->data = p->Shminfo[0].shmaddr;
p->ImageData = (unsigned char *) p->myximage->data;
p->Shminfo[0].readOnly = False;
XShmAttach(vo->x11->display, &p->Shminfo[0]);
XSync(vo->x11->display, False);
if (p->gXErrorFlag) {
XDestroyImage(p->myximage);
shmdt(p->Shminfo[0].shmaddr);
mp_msg(MSGT_VO, MSGL_WARN, "Shared memory error,disabling.\n");
p->gXErrorFlag = 0;
goto shmemerror;
} else
shmctl(p->Shminfo[0].shmid, IPC_RMID, 0);
if (!p->firstTime) {
mp_msg(MSGT_VO, MSGL_V, "Sharing memory.\n");
p->firstTime = 1;
}
} else {
shmemerror:
p->Shmem_Flag = 0;
#endif
p->myximage =
XCreateImage(vo->x11->display, p->vinfo.visual, p->depth, ZPixmap,
0, NULL, p->image_width, p->image_height, 8, 0);
p->ImageDataOrig =
malloc(p->myximage->bytes_per_line * p->image_height + 32);
p->myximage->data = p->ImageDataOrig + 16 - ((long)p->ImageDataOrig & 15);
memset(p->myximage->data, 0, p->myximage->bytes_per_line * p->image_height);
p->ImageData = p->myximage->data;
#ifdef HAVE_SHM
}
#endif
}
void I_InitGraphics(void)
{
const char* displayname = NULL;
int n;
int pnum;
int x=0;
int y=0;
{
static int firsttime=1;
if (!firsttime) {
return;
}
firsttime = 0;
}
{ // Check for screen enlargement
char str[3] = { '-', 0, 0 };
for (n=1; n<4; n++) {
str[1] = n + '0';
if (M_CheckParm(str)) multiply = n;
}
}
X_width = SCREENWIDTH * multiply;
X_height = SCREENHEIGHT * multiply;
// check for command-line geometry
if ( (pnum=M_CheckParm("-geom")) ? 1 : (pnum=M_CheckParm("-geometry")))
if (pnum+1 < myargc) { // check parm given
// warning: char format, different type arg
char xsign=' ';
char ysign=' ';
const char* pg = myargv[pnum+1];
pg += strcspn(pg, "+-");
// warning: char format, different type arg 3,5
n = sscanf(pg, "%c%d%c%d", &xsign, &x, &ysign, &y);
if (n==2)
x = y = 0;
else if (n==4) {
if (xsign == '-')
x = -x;
if (ysign == '-')
y = -y;
} else
fprintf(stderr, "I_InitGraphics: bad -geom offsets \"%s\"\n", pg);
}
// check for command-line display name
if ( (pnum=M_CheckParm("-disp")) ) // suggest parentheses around assignment
displayname = myargv[pnum+1];
// CPhipps - support more standard -display param
if ( (pnum=M_CheckParm("-display")) ) // ditto
displayname = myargv[pnum+1];
// CPhipps - and -displayname as for xterm
if ( (pnum=M_CheckParm("-displayname")) ) // ditto
displayname = myargv[pnum+1];
// open the display
if (!(X_display = XOpenDisplay(displayname))) {
if (displayname)
I_Error("Could not open display [%s]", displayname);
else
I_Error("Could not open display (DISPLAY=[%s])", getenv("DISPLAY"));
}
// use the default visual
X_screen = DefaultScreen(X_display);
X_deletewin = XInternAtom(X_display, "WM_DELETE_WINDOW", False);
// check for the MITSHM extension
// even if it's available, make sure it's a local connection
lprintf(LO_INFO,"I_InitGraphics:");
#ifdef HAVE_LIBXXF86DGA
if ((doDga = (M_CheckParm("-dga") && XF86DGAQueryExtension(X_display, &n, &n)) )) {
lprintf(LO_INFO,"I_InitGraphics: found DGA extension\n");
if (M_CheckParm("-noaccel") || (X_opt & 1)) doDga = false;
else lprintf(LO_INFO, "(using DGA)");
}
else
#endif
#ifdef HAVE_LIBXEXT
if ((doShm = XShmQueryExtension(X_display))) {
if (!displayname) displayname = getenv("DISPLAY");
if (displayname) {
// CPhipps - don't modify the original string, please.
// - oops my code here was totally wrong
// I have no idea exactly what should go here.
if (M_CheckParm("-noaccel") || (X_opt & 1)) doShm = false;
else lprintf(LO_INFO, "(using MITShm)");
}
}
else
#endif
if (devparm)
fprintf(stderr, "No MITShm extension in server");
if (devparm)
fputc('\n', stderr);
if ((X_visual = I_FindMode(X_screen)) == NULL)
I_Error("Unsupported visual");
// create the colormap
X_cmap = XCreateColormap(X_display, RootWindow(X_display, X_screen),
X_visual, true_color ? AllocNone : AllocAll);
#ifdef HAVE_LIBXXF86DGA
/* setup for DGA */
if(doDga) {
char *fb;
X_mainWindow=RootWindow(X_display, X_screen);
XF86DGAGetViewPortSize(X_display, X_screen, &DGA_width, &DGA_height);
XF86DGAGetVideo(X_display, X_screen, &fb,
&DGA_real_width, &DGA_pagelen, &DGA_memlen);
fprintf(stderr,
"I_InitGraphics: DGA reports %dx%d scan=%d page=%d mem=%d\n",
DGA_width,DGA_height,DGA_real_width,DGA_pagelen,DGA_memlen);
out_buffer=(void*)fb;
XF86DGADirectVideo(X_display, X_screen, XF86DGADirectGraphics);
XF86DGASetVidPage(X_display, X_screen, 0);
XF86DGAForkApp(X_screen);
XSelectInput(X_display, X_mainWindow, KeyPressMask | KeyReleaseMask);
fprintf(stderr,"DGA framebuffer @%p\n",fb);
memset(fb,0,102400);
}
#endif
#ifdef HAVE_LIBXXF86DGA
if(!doDga)
#endif
{ // setup attributes for main window
unsigned long attribmask;
XSetWindowAttributes attribs;
attribmask = CWEventMask | CWColormap | CWBorderPixel;
attribs.event_mask = KeyPressMask | KeyReleaseMask
#ifdef MONITOR_VISIBILITY
| VisibilityChangeMask
#endif
| ExposureMask;
attribs.colormap = X_cmap;
attribs.border_pixel = 0;
// create the main window
X_mainWindow = XCreateWindow( X_display,
RootWindow(X_display, X_screen),
x, y,
X_width, X_height,
0, // borderwidth
X_bpp, // depth
InputOutput, X_visual,
attribmask, &attribs );
}
#ifdef HAVE_LIBXXF86DGA
if(!doDga)
#endif
{
XClassHint c_hint;
XTextProperty x_name;
XSizeHints s_hint;
XWMHints wm_hint;
char lcase_buf[10], ucase_buf[10];
char* str;
strcpy(str = lcase_buf, lcase_lxdoom);
XStringListToTextProperty(&str, 1, &x_name);
s_hint.flags = PSize | PMinSize | PMaxSize;
s_hint.min_width = s_hint.max_width = s_hint.base_width = X_width;
s_hint.min_height = s_hint.max_height = s_hint.base_height = X_height;
wm_hint.input = True;
wm_hint.window_group = X_mainWindow;
wm_hint.flags = InputHint | WindowGroupHint;
strcpy(c_hint.res_name = lcase_buf, lcase_lxdoom);
strcpy(c_hint.res_class = ucase_buf, ucase_lxdoom);
XSetWMProtocols(X_display, X_mainWindow, &X_deletewin, 1);
XSetWMProperties(X_display, X_mainWindow, &x_name, &x_name,
(char**)myargv, myargc, &s_hint, &wm_hint, &c_hint);
XFlush(X_display);
}
#ifdef HAVE_LIBXXF86DGA
if(!doDga)
#endif
// Hide pointer while over this window
XDefineCursor(X_display, X_mainWindow,
I_XCreateNullCursor( X_display, X_mainWindow ) );
{ // create the GC
XGCValues xgcvalues;
int valuemask;
valuemask = GCGraphicsExposures;
xgcvalues.graphics_exposures = False;
X_gc = XCreateGC(X_display, X_mainWindow, valuemask, &xgcvalues);
}
#ifdef HAVE_LIBXXF86DGA
if(!doDga)
#endif
{
// name the window
XStoreName(X_display, X_mainWindow, "lxdoom");
// map the window
XMapWindow(X_display, X_mainWindow);
}
// wait until it is OK to draw
#ifdef HAVE_LIBXXF86DGA
if(!doDga)
#endif
do {
XNextEvent(X_display, &X_event);
} while (!(X_event.type == Expose && !X_event.xexpose.count));
#ifdef HAVE_LIBXXF86DGA
if(doDga) {}
else
#endif
#ifdef HAVE_LIBXEXT
if (doShm) {
X_shmeventtype = XShmGetEventBase(X_display) + ShmCompletion;
// create the image
image = XShmCreateImage( X_display, X_visual,
X_bpp, ZPixmap,
0, &X_shminfo,
X_width, X_height );
I_XShmGrabSharedMemory(image->bytes_per_line * image->height);
if (!(out_buffer = (pval*)image->data)) {
perror("");
I_Error("shmat() failed in I_InitGraphics()");
}
// get the X server to attach to it
if (!XShmAttach(X_display, &X_shminfo))
I_Error("XShmAttach() failed in InitGraphics()");
if (!expand_buffer) {
// Render directly into MitSHM memory
Z_Free(screens[0]);
screens[0] = (unsigned char *) (image->data);
}
} else
#endif
{
if (!expand_buffer) {
// Very efficient, render directly into image
out_buffer = (pval*)screens[0];
} else {
// Will have to enlarge from rendering buffer
// into image buffer
out_buffer = (pval*)malloc (X_width * X_height * BYTESPP);
}
{
/* hack to enable 15 bpp usage */
int bpp=X_bpp;
if(bpp==15)bpp=16;
image=XCreateImage( X_display, X_visual,
X_bpp, ZPixmap,
0, (char*)out_buffer,
X_width, X_height,
bpp, 0);
#ifdef NOT_NOW
image=XCreateImage( X_display, X_visual,
X_bpp, ZPixmap,
0, (char*)out_buffer,
X_width, X_height,
X_bpp, 0);
#endif
}
if (!image)
I_Error("XCreateImage: failed to create image %dx%d %d bpp",
X_width, X_height, X_bpp);
}
atexit(I_ShutdownGraphics);
I_XInitInputs();
}
/**
* Initialize the x11 grab device demuxer (public device demuxer API).
*
* @param s1 Context from avformat core
* @return <ul>
* <li>AVERROR(ENOMEM) no memory left</li>
* <li>AVERROR(EIO) other failure case</li>
* <li>0 success</li>
* </ul>
*/
static int
x11grab_read_header(AVFormatContext *s1)
{
struct x11_grab *x11grab = s1->priv_data;
Display *dpy;
AVStream *st = NULL;
enum PixelFormat input_pixfmt;
XImage *image;
int x_off = 0;
int y_off = 0;
int screen;
int use_shm;
char *dpyname, *offset;
int ret = 0;
AVRational framerate;
dpyname = av_strdup(s1->filename);
offset = strchr(dpyname, '+');
if (offset) {
sscanf(offset, "%d,%d", &x_off, &y_off);
x11grab->draw_mouse = !strstr(offset, "nomouse");
*offset= 0;
}
if ((ret = av_parse_video_size(&x11grab->width, &x11grab->height, x11grab->video_size)) < 0) {
av_log(s1, AV_LOG_ERROR, "Couldn't parse video size.\n");
goto out;
}
if ((ret = av_parse_video_rate(&framerate, x11grab->framerate)) < 0) {
av_log(s1, AV_LOG_ERROR, "Could not parse framerate: %s.\n", x11grab->framerate);
goto out;
}
av_log(s1, AV_LOG_INFO, "device: %s -> display: %s x: %d y: %d width: %d height: %d\n",
s1->filename, dpyname, x_off, y_off, x11grab->width, x11grab->height);
dpy = XOpenDisplay(dpyname);
av_freep(&dpyname);
if(!dpy) {
av_log(s1, AV_LOG_ERROR, "Could not open X display.\n");
ret = AVERROR(EIO);
goto out;
}
st = avformat_new_stream(s1, NULL);
if (!st) {
ret = AVERROR(ENOMEM);
goto out;
}
avpriv_set_pts_info(st, 64, 1, 1000000); /* 64 bits pts in us */
screen = DefaultScreen(dpy);
if (x11grab->follow_mouse) {
int screen_w, screen_h;
Window w;
screen_w = DisplayWidth(dpy, screen);
screen_h = DisplayHeight(dpy, screen);
XQueryPointer(dpy, RootWindow(dpy, screen), &w, &w, &x_off, &y_off, &ret, &ret, &ret);
x_off -= x11grab->width / 2;
y_off -= x11grab->height / 2;
x_off = FFMIN(FFMAX(x_off, 0), screen_w - x11grab->width);
y_off = FFMIN(FFMAX(y_off, 0), screen_h - x11grab->height);
av_log(s1, AV_LOG_INFO, "followmouse is enabled, resetting grabbing region to x: %d y: %d\n", x_off, y_off);
}
use_shm = XShmQueryExtension(dpy);
av_log(s1, AV_LOG_INFO, "shared memory extension%s found\n", use_shm ? "" : " not");
if(use_shm) {
int scr = XDefaultScreen(dpy);
image = XShmCreateImage(dpy,
DefaultVisual(dpy, scr),
DefaultDepth(dpy, scr),
ZPixmap,
NULL,
&x11grab->shminfo,
x11grab->width, x11grab->height);
x11grab->shminfo.shmid = shmget(IPC_PRIVATE,
image->bytes_per_line * image->height,
IPC_CREAT|0777);
if (x11grab->shminfo.shmid == -1) {
av_log(s1, AV_LOG_ERROR, "Fatal: Can't get shared memory!\n");
ret = AVERROR(ENOMEM);
goto out;
}
x11grab->shminfo.shmaddr = image->data = shmat(x11grab->shminfo.shmid, 0, 0);
x11grab->shminfo.readOnly = False;
if (!XShmAttach(dpy, &x11grab->shminfo)) {
av_log(s1, AV_LOG_ERROR, "Fatal: Failed to attach shared memory!\n");
/* needs some better error subroutine :) */
ret = AVERROR(EIO);
goto out;
}
} else {
image = XGetImage(dpy, RootWindow(dpy, screen),
x_off,y_off,
x11grab->width, x11grab->height,
AllPlanes, ZPixmap);
}
switch (image->bits_per_pixel) {
case 8:
av_log (s1, AV_LOG_DEBUG, "8 bit palette\n");
input_pixfmt = PIX_FMT_PAL8;
break;
case 16:
if ( image->red_mask == 0xf800 &&
image->green_mask == 0x07e0 &&
image->blue_mask == 0x001f ) {
av_log (s1, AV_LOG_DEBUG, "16 bit RGB565\n");
input_pixfmt = PIX_FMT_RGB565;
} else if (image->red_mask == 0x7c00 &&
image->green_mask == 0x03e0 &&
image->blue_mask == 0x001f ) {
av_log(s1, AV_LOG_DEBUG, "16 bit RGB555\n");
input_pixfmt = PIX_FMT_RGB555;
} else {
av_log(s1, AV_LOG_ERROR, "RGB ordering at image depth %i not supported ... aborting\n", image->bits_per_pixel);
av_log(s1, AV_LOG_ERROR, "color masks: r 0x%.6lx g 0x%.6lx b 0x%.6lx\n", image->red_mask, image->green_mask, image->blue_mask);
ret = AVERROR(EIO);
goto out;
}
break;
case 24:
if ( image->red_mask == 0xff0000 &&
image->green_mask == 0x00ff00 &&
image->blue_mask == 0x0000ff ) {
input_pixfmt = PIX_FMT_BGR24;
} else if ( image->red_mask == 0x0000ff &&
image->green_mask == 0x00ff00 &&
image->blue_mask == 0xff0000 ) {
input_pixfmt = PIX_FMT_RGB24;
} else {
av_log(s1, AV_LOG_ERROR,"rgb ordering at image depth %i not supported ... aborting\n", image->bits_per_pixel);
av_log(s1, AV_LOG_ERROR, "color masks: r 0x%.6lx g 0x%.6lx b 0x%.6lx\n", image->red_mask, image->green_mask, image->blue_mask);
ret = AVERROR(EIO);
goto out;
}
break;
case 32:
input_pixfmt = PIX_FMT_0RGB32;
break;
default:
av_log(s1, AV_LOG_ERROR, "image depth %i not supported ... aborting\n", image->bits_per_pixel);
ret = AVERROR(EINVAL);
goto out;
}
x11grab->frame_size = x11grab->width * x11grab->height * image->bits_per_pixel/8;
x11grab->dpy = dpy;
x11grab->time_base = (AVRational) {
framerate.den, framerate.num
};
x11grab->time_frame = av_gettime() / av_q2d(x11grab->time_base);
x11grab->x_off = x_off;
x11grab->y_off = y_off;
x11grab->image = image;
x11grab->use_shm = use_shm;
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
st->codec->codec_id = CODEC_ID_RAWVIDEO;
st->codec->width = x11grab->width;
st->codec->height = x11grab->height;
st->codec->pix_fmt = input_pixfmt;
st->codec->time_base = x11grab->time_base;
st->codec->bit_rate = x11grab->frame_size * 1/av_q2d(x11grab->time_base) * 8;
out:
return ret;
}