gstreamer/subprojects/gstreamer-vaapi/gst-libs/gst/vaapi/gstvaapiwindow_drm.c

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/*
* gstvaapiwindow_drm.c - VA/DRM window abstraction
*
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* Copyright (C) 2012-2013 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.
*
* 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:gstvaapiwindow_drm
* @short_description: VA/DRM dummy window abstraction
*/
#include "sysdeps.h"
#include "gstvaapiwindow_drm.h"
#include "gstvaapiwindow_priv.h"
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#include "gstvaapidisplay_drm_priv.h"
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GST_DEBUG_CATEGORY_EXTERN (gst_debug_vaapi_window);
#define GST_CAT_DEFAULT gst_debug_vaapi_window
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typedef struct _GstVaapiWindowDRMClass GstVaapiWindowDRMClass;
/**
* GstVaapiWindowDRM:
*
* A dummy DRM window abstraction.
*/
struct _GstVaapiWindowDRM
{
/*< private > */
GstVaapiWindow parent_instance;
};
/**
* GstVaapiWindowDRMClass:
*
* A dummy DRM window abstraction class.
*/
struct _GstVaapiWindowDRMClass
{
/*< private > */
GstVaapiWindowClass parent_instance;
};
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G_DEFINE_TYPE (GstVaapiWindowDRM, gst_vaapi_window_drm, GST_TYPE_VAAPI_WINDOW);
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static gboolean
gst_vaapi_window_drm_show (GstVaapiWindow * window)
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{
return TRUE;
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}
static gboolean
gst_vaapi_window_drm_hide (GstVaapiWindow * window)
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{
return TRUE;
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}
static gboolean
gst_vaapi_window_drm_create (GstVaapiWindow * window,
guint * width, guint * height)
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{
return TRUE;
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}
static gboolean
gst_vaapi_window_drm_resize (GstVaapiWindow * window, guint width, guint height)
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{
return TRUE;
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}
static gboolean
gst_vaapi_window_drm_render (GstVaapiWindow * window,
GstVaapiSurface * surface,
const GstVaapiRectangle * src_rect,
const GstVaapiRectangle * dst_rect, guint flags)
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{
return TRUE;
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}
static void
gst_vaapi_window_drm_class_init (GstVaapiWindowDRMClass * klass)
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{
GstVaapiWindowClass *const window_class = GST_VAAPI_WINDOW_CLASS (klass);
window_class->create = gst_vaapi_window_drm_create;
window_class->show = gst_vaapi_window_drm_show;
window_class->hide = gst_vaapi_window_drm_hide;
window_class->resize = gst_vaapi_window_drm_resize;
window_class->render = gst_vaapi_window_drm_render;
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}
static void
gst_vaapi_window_drm_init (GstVaapiWindowDRM * window)
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{
}
/**
* gst_vaapi_window_drm_new:
* @display: a #GstVaapiDisplay
* @width: the requested window width, in pixels (unused)
* @height: the requested windo height, in pixels (unused)
*
* Creates a dummy window. The window will be attached to the @display.
* All rendering functions will return success since VA/DRM is a
* renderless API.
*
* Note: this dummy window object is only necessary to fulfill cases
* where the client application wants to automatically determine the
* best display to use for the current system. As such, it provides
* utility functions with the same API (function arguments) to help
* implement uniform function tables.
*
* Return value: the newly allocated #GstVaapiWindow object
*/
GstVaapiWindow *
gst_vaapi_window_drm_new (GstVaapiDisplay * display, guint width, guint height)
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{
g_return_val_if_fail (GST_VAAPI_IS_DISPLAY_DRM (display), NULL);
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return gst_vaapi_window_new_internal (GST_TYPE_VAAPI_WINDOW_DRM, display,
GST_VAAPI_ID_INVALID, width, height);
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}