gstreamer/gst-libs/gst/vaapi/gstvaapidisplay_glx.c

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/*
* gstvaapidisplay_glx.c - VA/GLX display abstraction
*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
2013-11-22 05:37:12 +00:00
* Copyright (C) 2011-2013 Intel Corporation
* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
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*
* 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.
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*
* This library is distributed in the hope that it will be useful,
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* 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.
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*
* 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
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*/
/**
* SECTION:gstvaapidisplay_glx
* @short_description: VA/GLX display abstraction
*/
#include "sysdeps.h"
#include "gstvaapicompat.h"
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#include "gstvaapiutils.h"
#include "gstvaapiutils_glx.h"
#include "gstvaapidisplay_priv.h"
#include "gstvaapidisplay_x11_priv.h"
#include "gstvaapidisplay_glx.h"
#include "gstvaapidisplay_glx_priv.h"
#include "gstvaapiwindow_glx.h"
#include "gstvaapitexture_glx.h"
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#define DEBUG_VAAPI_DISPLAY 1
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#include "gstvaapidebug.h"
G_DEFINE_TYPE (GstVaapiDisplayGLX, gst_vaapi_display_glx,
GST_TYPE_VAAPI_DISPLAY_X11);
static GstVaapiWindow *
gst_vaapi_display_glx_create_window (GstVaapiDisplay * display, GstVaapiID id,
guint width, guint height)
{
return id != GST_VAAPI_ID_INVALID ?
gst_vaapi_window_glx_new_with_xid (display, id) :
gst_vaapi_window_glx_new (display, width, height);
}
static void
ensure_texture_map (GstVaapiDisplayGLX * display)
{
if (!display->texture_map)
display->texture_map = gst_vaapi_texture_map_new ();
}
static GstVaapiTexture *
gst_vaapi_display_glx_create_texture (GstVaapiDisplay * display, GstVaapiID id,
guint target, guint format, guint width, guint height)
{
GstVaapiTexture *texture;
GstVaapiDisplayGLX *dpy = GST_VAAPI_DISPLAY_GLX (display);
if (id == GST_VAAPI_ID_INVALID)
return gst_vaapi_texture_glx_new (display, target, format, width, height);
ensure_texture_map (dpy);
if (!(texture = gst_vaapi_texture_map_lookup (dpy->texture_map, id))) {
if ((texture =
gst_vaapi_texture_glx_new_wrapped (display, id, target, format))) {
gst_vaapi_texture_map_add (dpy->texture_map, texture, id);
}
}
return texture;
}
static GstVaapiTextureMap *
gst_vaapi_display_glx_get_texture_map (GstVaapiDisplay * display)
{
return GST_VAAPI_DISPLAY_GLX (display)->texture_map;
}
static void
gst_vaapi_display_glx_finalize (GObject * object)
{
GstVaapiDisplayGLX *dpy = GST_VAAPI_DISPLAY_GLX (object);
if (dpy->texture_map)
gst_object_unref (dpy->texture_map);
G_OBJECT_CLASS (gst_vaapi_display_glx_parent_class)->finalize (object);
}
static void
gst_vaapi_display_glx_init (GstVaapiDisplayGLX * display)
{
}
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static void
gst_vaapi_display_glx_class_init (GstVaapiDisplayGLXClass * klass)
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{
GObjectClass *const object_class = G_OBJECT_CLASS (klass);
GstVaapiDisplayClass *const dpy_class = GST_VAAPI_DISPLAY_CLASS (klass);
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object_class->finalize = gst_vaapi_display_glx_finalize;
dpy_class->display_type = GST_VAAPI_DISPLAY_TYPE_GLX;
dpy_class->create_window = gst_vaapi_display_glx_create_window;
dpy_class->create_texture = gst_vaapi_display_glx_create_texture;
dpy_class->get_texture_map = gst_vaapi_display_glx_get_texture_map;
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}
/**
* gst_vaapi_display_glx_new:
* @display_name: the X11 display name
*
* Opens an X11 #Display using @display_name and returns a newly
* allocated #GstVaapiDisplay object. The X11 display will be cloed
* when the reference count of the object reaches zero.
*
* Return value: a newly allocated #GstVaapiDisplay object
*/
GstVaapiDisplay *
gst_vaapi_display_glx_new (const gchar * display_name)
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{
GstVaapiDisplay *display;
display = g_object_new (GST_TYPE_VAAPI_DISPLAY_GLX, NULL);
return gst_vaapi_display_config (display,
GST_VAAPI_DISPLAY_INIT_FROM_DISPLAY_NAME, (gpointer) display_name);
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}
/**
* gst_vaapi_display_glx_new_with_display:
* @x11_display: an X11 #Display
*
* Creates a #GstVaapiDisplay based on the X11 @x11_display
* display. The caller still owns the display and must call
* XCloseDisplay() when all #GstVaapiDisplay references are
* released. Doing so too early can yield undefined behaviour.
*
* Return value: a newly allocated #GstVaapiDisplay object
*/
GstVaapiDisplay *
gst_vaapi_display_glx_new_with_display (Display * x11_display)
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{
GstVaapiDisplay *display;
g_return_val_if_fail (x11_display != NULL, NULL);
display = g_object_new (GST_TYPE_VAAPI_DISPLAY_GLX, NULL);
return gst_vaapi_display_config (display,
GST_VAAPI_DISPLAY_INIT_FROM_NATIVE_DISPLAY, x11_display);
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}