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sys/ximage/gstximagesrc.c (gst_ximage_src_start, gst_ximage_src_ximage_get):

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Original commit message from CVS:
* sys/ximage/gstximagesrc.c (gst_ximage_src_start,
gst_ximage_src_ximage_get):
* sys/ximage/gstximagesrc.h (last_ximage):
When using Damage actually keep the last frame, and not assume
that the buffer we get already has the last frame on it.
Copy the cursor over if we specify a non-zero start x and
start y.
This commit is contained in:
Zaheer Abbas Merali 2007-05-11 10:31:27 +00:00
parent 4b69fc4466
commit 20bc2905bb
3 changed files with 62 additions and 5 deletions
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10
ChangeLog
View file

@ -1,3 +1,13 @@
2007-05-11 Zaheer Abbas Merali <<zaheerabbas at merali dot org>>
* sys/ximage/gstximagesrc.c (gst_ximage_src_start,
gst_ximage_src_ximage_get):
* sys/ximage/gstximagesrc.h (last_ximage):
When using Damage actually keep the last frame, and not assume
that the buffer we get already has the last frame on it.
Copy the cursor over if we specify a non-zero start x and
start y.
2007-05-11 Wim Taymans <wim@fluendo.com>
* gst/rtsp/rtsptransport.c:

56
sys/ximage/gstximagesrc.c
View file

@ -205,7 +205,9 @@ gst_ximage_src_start (GstBaseSrc * basesrc)
GstXImageSrc *s = GST_XIMAGE_SRC (basesrc);
s->last_frame_no = -1;
#ifdef HAVE_XDAMAGE
s->last_ximage = NULL;
#endif
return gst_ximage_src_open_display (s, NULL);
}
@ -400,6 +402,10 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
if (ximagesrc->have_xdamage && ximagesrc->use_damage) {
XEvent ev;
/* have_frame is TRUE when either the entire screen has been
* grabbed or when the last image has been copied */
gboolean have_frame = FALSE;
GST_DEBUG_OBJECT (ximagesrc, "Retrieving screen using XDamage");
do {
@ -418,6 +424,7 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
while (XPending (ximagesrc->xcontext->disp)) {
XNextEvent (ximagesrc->xcontext->disp, &ev);
}
have_frame = TRUE;
break;
} else
#endif
@ -447,6 +454,16 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
height = (dev->area.y + dev->area.height < ximagesrc->endy) ?
dev->area.y + dev->area.height - starty : ximagesrc->endy -
starty;
if (!have_frame) {
GST_LOG_OBJECT (ximagesrc,
"Copying from last frame ximage->size: %d",
GST_BUFFER_SIZE (GST_BUFFER (ximage)));
memcpy (GST_BUFFER_DATA (GST_BUFFER (ximage)),
GST_BUFFER_DATA (GST_BUFFER (ximagesrc->last_ximage)),
GST_BUFFER_SIZE (GST_BUFFER (ximage)));
have_frame = TRUE;
}
GST_LOG_OBJECT (ximagesrc,
"Retrieving damaged sub-region @ %d,%d size %dx%d as intersect region",
startx, starty, width, height);
@ -456,6 +473,15 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
starty - ximagesrc->starty);
}
} else {
if (!have_frame) {
GST_LOG_OBJECT (ximagesrc,
"Copying from last frame ximage->size: %d",
GST_BUFFER_SIZE (GST_BUFFER (ximage)));
memcpy (GST_BUFFER_DATA (GST_BUFFER (ximage)),
GST_BUFFER_DATA (GST_BUFFER (ximagesrc->last_ximage)),
GST_BUFFER_SIZE (GST_BUFFER (ximage)));
have_frame = TRUE;
}
GST_LOG_OBJECT (ximagesrc,
"Retrieving damaged sub-region @ %d,%d size %dx%d",
@ -470,6 +496,15 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
}
} while (XPending (ximagesrc->xcontext->disp));
XDamageSubtract (ximagesrc->xcontext->disp, ximagesrc->damage, None, None);
if (!have_frame) {
GST_LOG_OBJECT (ximagesrc,
"Copying from last frame ximage->size: %d",
GST_BUFFER_SIZE (GST_BUFFER (ximage)));
memcpy (GST_BUFFER_DATA (GST_BUFFER (ximage)),
GST_BUFFER_DATA (GST_BUFFER (ximagesrc->last_ximage)),
GST_BUFFER_SIZE (GST_BUFFER (ximage)));
have_frame = TRUE;
}
#ifdef HAVE_XFIXES
/* re-get area where last mouse pointer was but only if in our clipping
* bounds */
@ -608,10 +643,11 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
for (i = 0; i < count; i++)
ximagesrc->cursor_image->pixels[i] =
GUINT_TO_LE (ximagesrc->cursor_image->pixels[i]);
/* copy those pixels across */
for (j = starty; j < starty + iheight && j < ximagesrc->height; j++) {
for (i = startx; i < startx + iwidth && i < ximagesrc->width; i++) {
for (j = starty; j < starty + iheight && j < starty + ximagesrc->height;
j++) {
for (i = startx; i < startx + iwidth && i < startx + ximagesrc->width;
i++) {
guint8 *src, *dest;
src =
@ -631,7 +667,17 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
}
}
#endif
#ifdef HAVE_XDAMAGE
if (ximagesrc->have_xdamage && ximagesrc->use_damage) {
/* need to ref ximage to put in last_ximage */
gst_buffer_ref (GST_BUFFER (ximage));
if (ximagesrc->last_ximage) {
gst_buffer_unref (GST_BUFFER (ximagesrc->last_ximage));
}
ximagesrc->last_ximage = ximage;
GST_LOG_OBJECT (ximagesrc, "reffing current buffer for last_ximage");
}
#endif
return ximage;
}

1
sys/ximage/gstximagesrc.h
View file

@ -92,6 +92,7 @@ struct _GstXImageSrc
int damage_event_base;
XserverRegion damage_region;
GC damage_copy_gc;
GstXImageSrcBuffer *last_ximage;
#endif
};