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/*
* gstvaapipixmap_x11.c - X11 pixmap abstraction
*
* Copyright (C) 2013-2014 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
/**
* SECTION:gstvaapipixmap_x11
* @short_description: X11 pixmap abstraction
*/
#include "sysdeps.h"
#include "gstvaapicompat.h"
#include "gstvaapipixmap_x11.h"
#include "gstvaapipixmap_priv.h"
#include "gstvaapidisplay_x11.h"
#include "gstvaapidisplay_x11_priv.h"
#include "gstvaapiutils.h"
#include "gstvaapiutils_x11.h"
#include "gstvaapisurface_priv.h"
#define DEBUG 1
#include "gstvaapidebug.h"
typedef struct _GstVaapiPixmapX11Class GstVaapiPixmapX11Class;
struct _GstVaapiPixmapX11
{
GstVaapiPixmap parent_instance;
};
struct _GstVaapiPixmapX11Class
{
GstVaapiPixmapClass parent_class;
};
static gboolean
gst_vaapi_pixmap_x11_create_from_xid (GstVaapiPixmap * pixmap, Pixmap xid)
{
guint depth;
gboolean success;
if (!xid)
return FALSE;
GST_VAAPI_OBJECT_LOCK_DISPLAY (pixmap);
success = x11_get_geometry (GST_VAAPI_OBJECT_NATIVE_DISPLAY (pixmap), xid,
NULL, NULL, &pixmap->width, &pixmap->height, &depth);
GST_VAAPI_OBJECT_UNLOCK_DISPLAY (pixmap);
if (!success)
return FALSE;
pixmap->format =
gst_vaapi_display_x11_get_pixmap_format (GST_VAAPI_OBJECT_DISPLAY_X11
(pixmap), depth);
if (pixmap->format == GST_VIDEO_FORMAT_UNKNOWN)
return FALSE;
return TRUE;
}
static gboolean
gst_vaapi_pixmap_x11_create (GstVaapiPixmap * pixmap)
{
GstVaapiDisplayX11 *const display =
GST_VAAPI_DISPLAY_X11 (GST_VAAPI_OBJECT_DISPLAY (pixmap));
Display *const dpy = GST_VAAPI_OBJECT_NATIVE_DISPLAY (display);
Window rootwin;
Pixmap xid;
guint depth;
if (pixmap->use_foreign_pixmap)
return gst_vaapi_pixmap_x11_create_from_xid (pixmap,
GST_VAAPI_OBJECT_ID (pixmap));
depth = gst_vaapi_display_x11_get_pixmap_depth (display, pixmap->format);
if (!depth)
return FALSE;
GST_VAAPI_OBJECT_LOCK_DISPLAY (pixmap);
rootwin = RootWindow (dpy, DefaultScreen (dpy));
xid = XCreatePixmap (dpy, rootwin, pixmap->width, pixmap->height, depth);
GST_VAAPI_OBJECT_UNLOCK_DISPLAY (pixmap);
GST_DEBUG ("xid %" GST_VAAPI_ID_FORMAT, GST_VAAPI_ID_ARGS (xid));
GST_VAAPI_OBJECT_ID (pixmap) = xid;
return xid != None;
}
static void
gst_vaapi_pixmap_x11_destroy (GstVaapiPixmap * pixmap)
{
const Pixmap xid = GST_VAAPI_OBJECT_ID (pixmap);
if (xid) {
if (!pixmap->use_foreign_pixmap) {
GST_VAAPI_OBJECT_LOCK_DISPLAY (pixmap);
XFreePixmap (GST_VAAPI_OBJECT_NATIVE_DISPLAY (pixmap), xid);
GST_VAAPI_OBJECT_UNLOCK_DISPLAY (pixmap);
}
GST_VAAPI_OBJECT_ID (pixmap) = None;
}
}
static gboolean
gst_vaapi_pixmap_x11_render (GstVaapiPixmap * pixmap, GstVaapiSurface * surface,
const GstVaapiRectangle * crop_rect, guint flags)
{
VASurfaceID surface_id;
VAStatus status;
surface_id = GST_VAAPI_OBJECT_ID (surface);
if (surface_id == VA_INVALID_ID)
return FALSE;
GST_VAAPI_OBJECT_LOCK_DISPLAY (pixmap);
status = vaPutSurface (GST_VAAPI_OBJECT_VADISPLAY (pixmap),
surface_id,
GST_VAAPI_OBJECT_ID (pixmap),
crop_rect->x, crop_rect->y,
crop_rect->width, crop_rect->height,
0, 0,
GST_VAAPI_PIXMAP_WIDTH (pixmap),
GST_VAAPI_PIXMAP_HEIGHT (pixmap),
NULL, 0, from_GstVaapiSurfaceRenderFlags (flags)
);
GST_VAAPI_OBJECT_UNLOCK_DISPLAY (pixmap);
if (!vaapi_check_status (status, "vaPutSurface() [pixmap]"))
return FALSE;
return TRUE;
}
void
gst_vaapi_pixmap_x11_class_init (GstVaapiPixmapX11Class * klass)
{
GstVaapiObjectClass *const object_class = GST_VAAPI_OBJECT_CLASS (klass);
GstVaapiPixmapClass *const pixmap_class = GST_VAAPI_PIXMAP_CLASS (klass);
object_class->finalize = (GstVaapiObjectFinalizeFunc)
gst_vaapi_pixmap_x11_destroy;
pixmap_class->create = gst_vaapi_pixmap_x11_create;
pixmap_class->render = gst_vaapi_pixmap_x11_render;
}
#define gst_vaapi_pixmap_x11_finalize \
gst_vaapi_pixmap_x11_destroy
GST_VAAPI_OBJECT_DEFINE_CLASS_WITH_CODE (GstVaapiPixmapX11,
gst_vaapi_pixmap_x11, gst_vaapi_pixmap_x11_class_init (&g_class))
/**
* gst_vaapi_pixmap_x11_new:
* @display: a #GstVaapiDisplay
* @format: the requested pixmap format
* @width: the requested pixmap width, in pixels
* @height: the requested windo height, in pixels
*
* Creates a pixmap with the specified @format, @width and
* @height. The pixmap will be attached to the @display.
*
* Return value: the newly allocated #GstVaapiPixmap object
*/
GstVaapiPixmap *gst_vaapi_pixmap_x11_new (GstVaapiDisplay * display,
GstVideoFormat format, guint width, guint height)
{
GST_DEBUG ("new pixmap, format %s, size %ux%u",
gst_vaapi_video_format_to_string (format), width, height);
g_return_val_if_fail (GST_VAAPI_IS_DISPLAY_X11 (display), NULL);
return
gst_vaapi_pixmap_new (GST_VAAPI_PIXMAP_CLASS (gst_vaapi_pixmap_x11_class
()), display, format, width, height);
}
/**
* gst_vaapi_pixmap_x11_new_with_xid:
* @display: a #GstVaapiDisplay
* @xid: an X11 #Pixmap id
*
* Creates a #GstVaapiPixmap using the X11 Pixmap @xid. The caller
* still owns the pixmap and must call XFreePixmap() when all
* #GstVaapiPixmap references are released. Doing so too early can
* yield undefined behaviour.
*
* Return value: the newly allocated #GstVaapiPixmap object
*/
GstVaapiPixmap *
gst_vaapi_pixmap_x11_new_with_xid (GstVaapiDisplay * display, Pixmap xid)
{
GST_DEBUG ("new pixmap from xid 0x%08x", (guint) xid);
g_return_val_if_fail (GST_VAAPI_IS_DISPLAY_X11 (display), NULL);
g_return_val_if_fail (xid != None, NULL);
return
gst_vaapi_pixmap_new_from_native (GST_VAAPI_PIXMAP_CLASS
(gst_vaapi_pixmap_x11_class ()), display, GSIZE_TO_POINTER (xid));
}
/**
* gst_vaapi_pixmap_x11_get_xid:
* @pixmap: a #GstVaapiPixmapX11
*
* Returns the underlying X11 Pixmap that was created by
* gst_vaapi_pixmap_x11_new() or that was bound with
* gst_vaapi_pixmap_x11_new_with_xid().
*
* Return value: the underlying X11 Pixmap bound to @pixmap.
*/
Pixmap
gst_vaapi_pixmap_x11_get_xid (GstVaapiPixmapX11 * pixmap)
{
g_return_val_if_fail (pixmap != NULL, None);
return GST_VAAPI_OBJECT_ID (pixmap);
}
/**
* gst_vaapi_pixmap_x11_is_foreign_xid:
* @pixmap: a #GstVaapiPixmapX11
*
* Checks whether the @pixmap XID was created by gst_vaapi_pixmap_x11_new()
* or was bound with gst_vaapi_pixmap_x11_new_with_xid().
*
* Return value: %TRUE if the underlying X pixmap is owned by the
* caller (foreign pixmap)
*/
gboolean
gst_vaapi_pixmap_x11_is_foreign_xid (GstVaapiPixmapX11 * pixmap)
{
g_return_val_if_fail (pixmap != NULL, FALSE);
return GST_VAAPI_PIXMAP (pixmap)->use_foreign_pixmap;
}
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