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
* Copyright (C) 2011-2012 Intel Corporation
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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"
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#define DEBUG 1
#include "gstvaapidebug.h"
static gboolean
gst_vaapi_display_glx_get_display_info(
GstVaapiDisplay *display,
GstVaapiDisplayInfo *info
)
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{
const GstVaapiDisplayGLXClass * const klass =
GST_VAAPI_DISPLAY_GLX_GET_CLASS(display);
info->va_display = vaGetDisplayGLX(GST_VAAPI_DISPLAY_XDISPLAY(display));
if (!info->va_display)
return FALSE;
info->display_type = GST_VAAPI_DISPLAY_TYPE_GLX;
return klass->parent_get_display(display, info);
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}
static void
gst_vaapi_display_glx_class_init(GstVaapiDisplayGLXClass *klass)
{
GstVaapiMiniObjectClass * const object_class =
GST_VAAPI_MINI_OBJECT_CLASS(klass);
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GstVaapiDisplayClass * const dpy_class = GST_VAAPI_DISPLAY_CLASS(klass);
gst_vaapi_display_x11_class_init(&klass->parent_class);
object_class->size = sizeof(GstVaapiDisplayGLX);
klass->parent_get_display = dpy_class->get_display;
dpy_class->get_display = gst_vaapi_display_glx_get_display_info;
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}
static inline const GstVaapiDisplayClass *
gst_vaapi_display_glx_class(void)
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{
static GstVaapiDisplayGLXClass g_class;
static gsize g_class_init = FALSE;
if (g_once_init_enter(&g_class_init)) {
gst_vaapi_display_glx_class_init(&g_class);
g_once_init_leave(&g_class_init, TRUE);
}
return GST_VAAPI_DISPLAY_CLASS(&g_class);
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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)
{
return gst_vaapi_display_new(gst_vaapi_display_glx_class(),
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)
{
g_return_val_if_fail(x11_display != NULL, NULL);
return gst_vaapi_display_new(gst_vaapi_display_glx_class(),
GST_VAAPI_DISPLAY_INIT_FROM_NATIVE_DISPLAY, x11_display);
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}