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sys/ximage/gstximagesrc.*: Fix use-damage property to actually work :)

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Original commit message from CVS:
2006-07-09  Zaheer Abbas Merali  <zaheerabbas at merali dot org>

* sys/ximage/gstximagesrc.c: (gst_ximage_src_ximage_get),
(gst_ximage_src_set_property), (gst_ximage_src_get_property),
(gst_ximage_src_get_caps), (gst_ximage_src_class_init),
(gst_ximage_src_init):
* sys/ximage/gstximagesrc.h:
Fix use-damage property to actually work :)
Add startx, starty, endx, endy properties so screencasts other than full
screen ones can work.
This commit is contained in:
Zaheer Abbas Merali 2006-07-08 22:41:25 +00:00
parent e6c882b767
commit e0855a0eb9
3 changed files with 249 additions and 50 deletions
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11
ChangeLog
View file

@ -1,3 +1,14 @@
2006-07-09 Zaheer Abbas Merali <zaheerabbas at merali dot org>
* sys/ximage/gstximagesrc.c: (gst_ximage_src_ximage_get),
(gst_ximage_src_set_property), (gst_ximage_src_get_property),
(gst_ximage_src_get_caps), (gst_ximage_src_class_init),
(gst_ximage_src_init):
* sys/ximage/gstximagesrc.h:
Fix use-damage property to actually work :)
Add startx, starty, endx, endy properties so screencasts other than full
screen ones can work.
2006-07-08 Zaheer Abbas Merali <zaheerabbas at merali dot org>
* sys/ximage/gstximagesrc.c: (gst_ximage_src_ximage_get),

281
sys/ximage/gstximagesrc.c
View file

@ -79,7 +79,11 @@ enum
PROP_DISPLAY_NAME,
PROP_SCREEN_NUM,
PROP_SHOW_POINTER,
PROP_USE_DAMAGE
PROP_USE_DAMAGE,
PROP_STARTX,
PROP_STARTY,
PROP_ENDX,
PROP_ENDY
};
GST_BOILERPLATE (GstXImageSrc, gst_ximage_src, GstPushSrc, GST_TYPE_PUSH_SRC);
@ -363,6 +367,7 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
xcontext = ximagesrc->xcontext;
caps = gst_caps_new_simple ("video/x-raw-rgb",
"bpp", G_TYPE_INT, xcontext->bpp,
"depth", G_TYPE_INT, xcontext->depth,
@ -370,8 +375,8 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
"red_mask", G_TYPE_INT, xcontext->r_mask_output,
"green_mask", G_TYPE_INT, xcontext->g_mask_output,
"blue_mask", G_TYPE_INT, xcontext->b_mask_output,
"width", G_TYPE_INT, xcontext->width,
"height", G_TYPE_INT, xcontext->height,
"width", G_TYPE_INT, ximagesrc->width,
"height", G_TYPE_INT, ximagesrc->height,
"framerate", GST_TYPE_FRACTION, ximagesrc->fps_n, ximagesrc->fps_d,
"pixel-aspect-ratio", GST_TYPE_FRACTION,
gst_value_get_fraction_numerator (xcontext->par),
@ -382,7 +387,6 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
}
g_return_val_if_fail (GST_IS_XIMAGE_SRC (ximagesrc), NULL);
#ifdef HAVE_XDAMAGE
if (ximagesrc->have_xdamage && ximagesrc->use_damage) {
XEvent ev;
@ -396,11 +400,11 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
#ifdef HAVE_XSHM
if (ximagesrc->xcontext->use_xshm &&
dev->area.width == ximagesrc->width &&
dev->area.height == ximagesrc->height) {
dev->area.width == ximagesrc->xcontext->width &&
dev->area.height == ximagesrc->xcontext->height) {
GST_DEBUG_OBJECT (ximagesrc, "Entire screen was damaged");
XShmGetImage (ximagesrc->xcontext->disp, ximagesrc->xwindow,
ximage->ximage, 0, 0, AllPlanes);
ximage->ximage, ximagesrc->startx, ximagesrc->starty, AllPlanes);
/* No need to collect more events */
while (XPending (ximagesrc->xcontext->disp)) {
XNextEvent (ximagesrc->xcontext->disp, &ev);
@ -409,20 +413,57 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
} else
#endif
{
GST_LOG_OBJECT (ximagesrc,
"Retrieving damaged sub-region @ %d,%d size %dx%d",
dev->area.x, dev->area.y, dev->area.width, dev->area.height);
/* if we only want a small area, clip this damage region to
* area we want */
if (ximagesrc->endx > ximagesrc->startx &&
ximagesrc->endy > ximagesrc->starty) {
/* see if damage area intersects */
if (dev->area.x + dev->area.width < ximagesrc->startx ||
dev->area.x > ximagesrc->endx) {
/* trivial reject */
} else if (dev->area.y + dev->area.height < ximagesrc->starty ||
dev->area.y > ximagesrc->endy) {
/* trivial reject */
} else {
/* find intersect region */
int startx, starty, width, height;
XGetSubImage (ximagesrc->xcontext->disp, ximagesrc->xwindow,
dev->area.x, dev->area.y,
dev->area.width, dev->area.height,
AllPlanes, ZPixmap, ximage->ximage, dev->area.x, dev->area.y);
startx = (dev->area.x < ximagesrc->startx) ? ximagesrc->startx :
dev->area.x;
starty = (dev->area.y < ximagesrc->starty) ? ximagesrc->starty :
dev->area.y;
width = (dev->area.x + dev->area.width < ximagesrc->endx) ?
dev->area.x + dev->area.width - startx :
ximagesrc->endx - startx;
height = (dev->area.y + dev->area.height < ximagesrc->endy) ?
dev->area.y + dev->area.height - starty : ximagesrc->endy -
starty;
GST_LOG_OBJECT (ximagesrc,
"Retrieving damaged sub-region @ %d,%d size %dx%d as intersect region",
startx, starty, width, height);
XGetSubImage (ximagesrc->xcontext->disp, ximagesrc->xwindow,
startx, starty, width, height, AllPlanes, ZPixmap,
ximage->ximage, startx - ximagesrc->startx,
starty - ximagesrc->starty);
}
} else {
GST_LOG_OBJECT (ximagesrc,
"Retrieving damaged sub-region @ %d,%d size %dx%d",
dev->area.x, dev->area.y, dev->area.width, dev->area.height);
XGetSubImage (ximagesrc->xcontext->disp, ximagesrc->xwindow,
dev->area.x, dev->area.y,
dev->area.width, dev->area.height,
AllPlanes, ZPixmap, ximage->ximage, dev->area.x, dev->area.y);
}
}
}
} while (XPending (ximagesrc->xcontext->disp));
XDamageSubtract (ximagesrc->xcontext->disp, ximagesrc->damage, None, None);
#ifdef HAVE_XFIXES
/* re-get area where last mouse pointer was */
/* re-get area where last mouse pointer was but only if in our clipping
* bounds */
if (ximagesrc->cursor_image) {
gint x, y, width, height;
@ -436,24 +477,50 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
x = 0;
if (y < 0)
y = 0;
if (x + width > ximagesrc->width)
width = ximagesrc->width - x;
if (y + height > ximagesrc->height)
height = ximagesrc->height - y;
if (x + width > ximagesrc->xcontext->width)
width = ximagesrc->xcontext->width - x;
if (y + height > ximagesrc->xcontext->height)
height = ximagesrc->xcontext->height - y;
g_assert (x >= 0);
g_assert (y >= 0);
GST_DEBUG_OBJECT (ximagesrc,
"Cursor was at (%d,%d) width: %d, height: %d and our range is: (%d,%d) - (%d,%d)",
x, y, width, height, ximagesrc->startx, ximagesrc->starty,
ximagesrc->endx, ximagesrc->endy);
/* only get where cursor last was, if it is in our range */
if (ximagesrc->endx > ximagesrc->startx &&
ximagesrc->endy > ximagesrc->starty) {
/* check bounds */
if (x + width < ximagesrc->startx || x > ximagesrc->endx) {
/* trivial reject */
} else if (y + height < ximagesrc->starty || y > ximagesrc->endy) {
/* trivial reject */
} else {
/* find intersect region */
int startx, starty, iwidth, iheight;
GST_DEBUG_OBJECT (ximagesrc, "Removing cursor from %d,%d", x, y);
XGetSubImage (ximagesrc->xcontext->disp, ximagesrc->xwindow,
x, y, width, height, AllPlanes, ZPixmap, ximage->ximage, x, y);
startx = (x < ximagesrc->startx) ? ximagesrc->startx : x;
starty = (y < ximagesrc->starty) ? ximagesrc->starty : y;
iwidth = (x + width < ximagesrc->endx) ?
x + width - startx : ximagesrc->endx - startx;
iheight = (y + height < ximagesrc->endy) ?
y + height - starty : ximagesrc->endy - starty;
GST_DEBUG_OBJECT (ximagesrc, "Removing cursor from %d,%d", x, y);
XGetSubImage (ximagesrc->xcontext->disp, ximagesrc->xwindow,
startx, starty, iwidth, iheight, AllPlanes, ZPixmap,
ximage->ximage, startx - ximagesrc->startx,
starty - ximagesrc->starty);
}
} else {
GST_DEBUG_OBJECT (ximagesrc, "Removing cursor from %d,%d", x, y);
XGetSubImage (ximagesrc->xcontext->disp, ximagesrc->xwindow,
x, y, width, height, AllPlanes, ZPixmap, ximage->ximage, x, y);
}
}
#endif
} else if (ximagesrc->have_xdamage && ximagesrc->damage) {
/* Free up XDamage we allocated earlier when we did not know whether
* we wanted to use damage or not */
XDamageDestroy (ximagesrc->xcontext->disp, ximagesrc->damage);
} else {
#endif
@ -461,14 +528,15 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
if (ximagesrc->xcontext->use_xshm) {
GST_DEBUG_OBJECT (ximagesrc, "Retrieving screen using XShm");
XShmGetImage (ximagesrc->xcontext->disp, ximagesrc->xwindow,
ximage->ximage, 0, 0, AllPlanes);
ximage->ximage, ximagesrc->startx, ximagesrc->starty, AllPlanes);
} else
#endif /* HAVE_XSHM */
{
GST_DEBUG_OBJECT (ximagesrc, "Retrieving screen using XGetImage");
ximage->ximage = XGetImage (ximagesrc->xcontext->disp, ximagesrc->xwindow,
0, 0, ximagesrc->width, ximagesrc->height, AllPlanes, ZPixmap);
ximagesrc->startx, ximagesrc->starty, ximagesrc->width,
ximagesrc->height, AllPlanes, ZPixmap);
}
#ifdef HAVE_XDAMAGE
}
@ -482,6 +550,9 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
ximagesrc->cursor_image = XFixesGetCursorImage (ximagesrc->xcontext->disp);
if (ximagesrc->cursor_image != NULL) {
int cx, cy, i, j, count;
int startx, starty, iwidth, iheight;
gboolean clipped = FALSE;
gboolean cursor_in_image = TRUE;
cx = ximagesrc->cursor_image->x - ximagesrc->cursor_image->xhot;
if (cx < 0)
@ -490,28 +561,64 @@ gst_ximage_src_ximage_get (GstXImageSrc * ximagesrc)
if (cy < 0)
cy = 0;
count = ximagesrc->cursor_image->width * ximagesrc->cursor_image->height;
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 = cy;
j < cy + ximagesrc->cursor_image->height && j < ximagesrc->height;
j++) {
for (i = cx;
i < cx + ximagesrc->cursor_image->width && i < ximagesrc->width;
i++) {
guint8 *src, *dest;
/* only get where cursor last was, if it is in our range */
if (ximagesrc->endx > ximagesrc->startx &&
ximagesrc->endy > ximagesrc->starty) {
/* check bounds */
if (cx + ximagesrc->cursor_image->width < ximagesrc->startx ||
cx > ximagesrc->endx) {
/* trivial reject */
cursor_in_image = FALSE;
} else if (cy + ximagesrc->cursor_image->height < ximagesrc->starty ||
cy > ximagesrc->endy) {
/* trivial reject */
cursor_in_image = FALSE;
} else {
/* find intersect region */
src =
(guint8 *) & (ximagesrc->cursor_image->pixels[((j -
cy) * ximagesrc->cursor_image->width + (i - cx))]);
dest =
(guint8 *) & (ximage->ximage->data[(j * ximagesrc->width +
i) * (ximagesrc->xcontext->bpp / 8)]);
startx = (cx < ximagesrc->startx) ? ximagesrc->startx : cx;
starty = (cy < ximagesrc->starty) ? ximagesrc->starty : cy;
iwidth = (cx + ximagesrc->cursor_image->width < ximagesrc->endx) ?
cx + ximagesrc->cursor_image->width - startx :
ximagesrc->endx - startx;
iheight = (cy + ximagesrc->cursor_image->height < ximagesrc->endy) ?
cy + ximagesrc->cursor_image->height - starty :
ximagesrc->endy - starty;
clipped = TRUE;
}
} else {
startx = cx;
starty = cy;
iwidth = ximagesrc->cursor_image->width;
iheight = ximagesrc->cursor_image->height;
}
composite_pixel (ximagesrc->xcontext, (guint8 *) dest,
(guint8 *) src);
if (cursor_in_image) {
GST_DEBUG_OBJECT (ximagesrc, "Cursor is in image so trying to draw it");
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 - starty < ximagesrc->height; j++) {
for (i = startx;
i < startx + iwidth && i - startx < ximagesrc->width; i++) {
guint8 *src, *dest;
src =
(guint8 *) & (ximagesrc->cursor_image->pixels[((j -
cy) * ximagesrc->cursor_image->width + (i - cx))]);
dest =
(guint8 *) & (ximage->ximage->data[((j -
ximagesrc->starty) * ximagesrc->width + (i -
ximagesrc->startx)) * (ximagesrc->xcontext->bpp /
8)]);
composite_pixel (ximagesrc->xcontext, (guint8 *) dest,
(guint8 *) src);
}
}
}
}
@ -630,6 +737,18 @@ gst_ximage_src_set_property (GObject * object, guint prop_id,
case PROP_USE_DAMAGE:
src->use_damage = g_value_get_boolean (value);
break;
case PROP_STARTX:
src->startx = g_value_get_uint (value);
break;
case PROP_STARTY:
src->starty = g_value_get_uint (value);
break;
case PROP_ENDX:
src->endx = g_value_get_uint (value);
break;
case PROP_ENDY:
src->endy = g_value_get_uint (value);
break;
default:
break;
}
@ -657,6 +776,19 @@ gst_ximage_src_get_property (GObject * object, guint prop_id, GValue * value,
break;
case PROP_USE_DAMAGE:
g_value_set_boolean (value, src->use_damage);
break;
case PROP_STARTX:
g_value_set_uint (value, src->startx);
break;
case PROP_STARTY:
g_value_set_uint (value, src->starty);
break;
case PROP_ENDX:
g_value_set_uint (value, src->endx);
break;
case PROP_ENDY:
g_value_set_uint (value, src->endy);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -713,6 +845,7 @@ gst_ximage_src_get_caps (GstBaseSrc * bs)
{
GstXImageSrc *s = GST_XIMAGE_SRC (bs);
GstXContext *xcontext;
gint x, y, width, height;
if ((!s->xcontext) && (!gst_ximage_src_open_display (s, NULL)))
return gst_caps_copy (gst_pad_get_pad_template_caps (GST_BASE_SRC (s)->
@ -724,6 +857,34 @@ gst_ximage_src_get_caps (GstBaseSrc * bs)
xcontext = s->xcontext;
x = y = 0;
width = xcontext->width;
height = xcontext->height;
if (s->endx > s->startx && s->endy > s->starty) {
/* this means user has put in values */
if (s->startx < xcontext->width && s->endx < xcontext->width &&
s->starty < xcontext->height && s->endy < xcontext->height) {
/* values are fine */
x = s->startx;
y = s->starty;
s->width = width = s->endx - s->startx;
s->height = height = s->endy - s->starty;
} else {
GST_WARNING
("User put in co-ordinates overshooting the X resolution, setting to full screen");
s->startx = 0;
s->starty = 0;
s->endx = 0;
s->endy = 0;
}
} else {
GST_WARNING ("User put in bogus co-ordinates, setting to full screen");
s->startx = 0;
s->starty = 0;
s->endx = 0;
s->endy = 0;
}
GST_DEBUG ("width = %d, height=%d", width, height);
return gst_caps_new_simple ("video/x-raw-rgb",
"bpp", G_TYPE_INT, xcontext->bpp,
"depth", G_TYPE_INT, xcontext->depth,
@ -731,8 +892,8 @@ gst_ximage_src_get_caps (GstBaseSrc * bs)
"red_mask", G_TYPE_INT, xcontext->r_mask_output,
"green_mask", G_TYPE_INT, xcontext->g_mask_output,
"blue_mask", G_TYPE_INT, xcontext->b_mask_output,
"width", G_TYPE_INT, xcontext->width,
"height", G_TYPE_INT, xcontext->height,
"width", G_TYPE_INT, width,
"height", G_TYPE_INT, height,
"framerate", GST_TYPE_FRACTION_RANGE, 1, G_MAXINT, G_MAXINT, 1,
"pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE, 1, G_MAXINT, G_MAXINT, 1,
NULL);
@ -799,10 +960,26 @@ gst_ximage_src_class_init (GstXImageSrcClass * klass)
g_param_spec_boolean ("show_pointer", "Show Mouse Pointer",
"Show mouse pointer (if XFixes extension enabled)", TRUE,
G_PARAM_READWRITE));
g_object_class_install_property (gc, PROP_SHOW_POINTER,
g_object_class_install_property (gc, PROP_USE_DAMAGE,
g_param_spec_boolean ("use_damage", "Use XDamage",
"Use XDamage (if XDamage extension enabled)", TRUE,
G_PARAM_READWRITE));
g_object_class_install_property (gc, PROP_STARTX,
g_param_spec_uint ("startx", "Start X co-ordinate",
"X coordinate of top left corner of area to be recorded (0 for top left of screen)",
0, G_MAXINT, 0, G_PARAM_READWRITE));
g_object_class_install_property (gc, PROP_STARTY,
g_param_spec_uint ("starty", "Start Y co-ordinate",
"Y coordinate of top left corner of area to be recorded (0 for top left of screen)",
0, G_MAXINT, 0, G_PARAM_READWRITE));
g_object_class_install_property (gc, PROP_ENDX,
g_param_spec_uint ("endx", "End X",
"X coordinate of bottom right corner of area to be recorded (0 for bottom right of screen)",
0, G_MAXINT, 0, G_PARAM_READWRITE));
g_object_class_install_property (gc, PROP_ENDY,
g_param_spec_uint ("endy", "End Y",
"Y coordinate of bottom right corner of area to be recorded (0 for bottom right of screen)",
0, G_MAXINT, 0, G_PARAM_READWRITE));
parent_class = g_type_class_peek_parent (klass);
@ -825,6 +1002,10 @@ gst_ximage_src_init (GstXImageSrc * ximagesrc, GstXImageSrcClass * klass)
ximagesrc->x_lock = g_mutex_new ();
ximagesrc->show_pointer = TRUE;
ximagesrc->use_damage = TRUE;
ximagesrc->startx = 0;
ximagesrc->starty = 0;
ximagesrc->endx = 0;
ximagesrc->endy = 0;
}
static gboolean

7
sys/ximage/gstximagesrc.h
View file

@ -76,6 +76,13 @@ struct _GstXImageSrc
gboolean have_xdamage;
gboolean show_pointer;
gboolean use_damage;
/* co-ordinates for start and end */
guint startx;
guint starty;
guint endx;
guint endy;
#ifdef HAVE_XFIXES
int fixes_event_base;
XFixesCursorImage *cursor_image;