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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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93418ed5ee
Add new generic helper functions gst_vaapi_texture_new_wrapped() and gst_vaapi_texture_new() to create a texture without having the caller to uselessly check for the display type himself. i.e. internally, there is now a GstVaapiDisplayClass hook to create textures, and the actual backend implementation fills it in. This is a simplification in view to supporting EGL.
131 lines
4.3 KiB
C
131 lines
4.3 KiB
C
/*
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* gstvaapidisplay_glx.c - VA/GLX display abstraction
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*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
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* Copyright (C) 2011-2013 Intel Corporation
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* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* of the License, or (at your option) any later version.
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*
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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
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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/**
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* SECTION:gstvaapidisplay_glx
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* @short_description: VA/GLX display abstraction
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*/
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#include "sysdeps.h"
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#include "gstvaapicompat.h"
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#include "gstvaapiutils.h"
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#include "gstvaapiutils_glx.h"
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#include "gstvaapidisplay_priv.h"
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#include "gstvaapidisplay_x11_priv.h"
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#include "gstvaapidisplay_glx.h"
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#include "gstvaapidisplay_glx_priv.h"
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#include "gstvaapitexture_glx.h"
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#define DEBUG 1
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#include "gstvaapidebug.h"
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static const guint g_display_types = 1U << GST_VAAPI_DISPLAY_TYPE_GLX;
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static gboolean
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gst_vaapi_display_glx_get_display_info (GstVaapiDisplay * display,
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GstVaapiDisplayInfo * info)
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{
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const GstVaapiDisplayGLXClass *const klass =
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GST_VAAPI_DISPLAY_GLX_GET_CLASS (display);
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if (!klass->parent_get_display (display, info))
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return FALSE;
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info->display_type = GST_VAAPI_DISPLAY_TYPE_GLX;
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return TRUE;
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}
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static GstVaapiTexture *
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gst_vaapi_display_glx_create_texture (GstVaapiDisplay * display, GstVaapiID id,
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guint target, guint format, guint width, guint height)
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{
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return id != GST_VAAPI_ID_INVALID ?
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gst_vaapi_texture_glx_new_wrapped (display, id, target, format) :
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gst_vaapi_texture_glx_new (display, target, format, width, height);
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}
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static void
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gst_vaapi_display_glx_class_init (GstVaapiDisplayGLXClass * klass)
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{
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GstVaapiMiniObjectClass *const object_class =
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GST_VAAPI_MINI_OBJECT_CLASS (klass);
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GstVaapiDisplayClass *const dpy_class = GST_VAAPI_DISPLAY_CLASS (klass);
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gst_vaapi_display_x11_class_init (&klass->parent_class);
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object_class->size = sizeof (GstVaapiDisplayGLX);
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klass->parent_get_display = dpy_class->get_display;
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dpy_class->display_types = g_display_types;
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dpy_class->get_display = gst_vaapi_display_glx_get_display_info;
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dpy_class->create_texture = gst_vaapi_display_glx_create_texture;
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}
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static inline const GstVaapiDisplayClass *
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gst_vaapi_display_glx_class (void)
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{
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static GstVaapiDisplayGLXClass g_class;
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static gsize g_class_init = FALSE;
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if (g_once_init_enter (&g_class_init)) {
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gst_vaapi_display_glx_class_init (&g_class);
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g_once_init_leave (&g_class_init, TRUE);
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}
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return GST_VAAPI_DISPLAY_CLASS (&g_class);
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}
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/**
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* gst_vaapi_display_glx_new:
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* @display_name: the X11 display name
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*
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* Opens an X11 #Display using @display_name and returns a newly
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* allocated #GstVaapiDisplay object. The X11 display will be cloed
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* when the reference count of the object reaches zero.
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*
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* Return value: a newly allocated #GstVaapiDisplay object
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*/
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GstVaapiDisplay *
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gst_vaapi_display_glx_new (const gchar * display_name)
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{
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return gst_vaapi_display_new (gst_vaapi_display_glx_class (),
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GST_VAAPI_DISPLAY_INIT_FROM_DISPLAY_NAME, (gpointer) display_name);
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}
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/**
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* gst_vaapi_display_glx_new_with_display:
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* @x11_display: an X11 #Display
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*
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* Creates a #GstVaapiDisplay based on the X11 @x11_display
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* display. The caller still owns the display and must call
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* XCloseDisplay() when all #GstVaapiDisplay references are
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* released. Doing so too early can yield undefined behaviour.
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*
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* Return value: a newly allocated #GstVaapiDisplay object
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*/
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GstVaapiDisplay *
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gst_vaapi_display_glx_new_with_display (Display * x11_display)
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{
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g_return_val_if_fail (x11_display != NULL, NULL);
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return gst_vaapi_display_new (gst_vaapi_display_glx_class (),
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GST_VAAPI_DISPLAY_INIT_FROM_NATIVE_DISPLAY, x11_display);
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}
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