gstreamer/gst-libs/gst/vaapi/gstvaapipixmap_priv.h

139 lines
4.2 KiB
C
Raw Normal View History

/*
* gstvaapipixmap_priv.h - Pixmap abstraction (private definitions)
*
* Copyright (C) 2013 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
*/
#ifndef GST_VAAPI_PIXMAP_PRIV_H
#define GST_VAAPI_PIXMAP_PRIV_H
#include "gstvaapiobject_priv.h"
G_BEGIN_DECLS
#define GST_VAAPI_PIXMAP_CLASS(klass) \
((GstVaapiPixmapClass *)(klass))
#define GST_VAAPI_PIXMAP_GET_CLASS(obj) \
GST_VAAPI_PIXMAP_CLASS(GST_VAAPI_OBJECT_GET_CLASS(obj))
/**
* GST_VAAPI_PIXMAP_FORMAT:
* @pixmap: a #GstVaapiPixmap
*
* Macro that evaluates to the format in pixels of the @pixmap.
*/
#undef GST_VAAPI_PIXMAP_FORMAT
#define GST_VAAPI_PIXMAP_FORMAT(pixmap) \
(GST_VAAPI_PIXMAP(pixmap)->format)
/**
* GST_VAAPI_PIXMAP_WIDTH:
* @pixmap: a #GstVaapiPixmap
*
* Macro that evaluates to the width in pixels of the @pixmap.
*/
#undef GST_VAAPI_PIXMAP_WIDTH
#define GST_VAAPI_PIXMAP_WIDTH(pixmap) \
(GST_VAAPI_PIXMAP(pixmap)->width)
/**
* GST_VAAPI_PIXMAP_HEIGHT:
* @pixmap: a #GstVaapiPixmap
*
* Macro that evaluates to the height in pixels of the @pixmap.
*/
#undef GST_VAAPI_PIXMAP_HEIGHT
#define GST_VAAPI_PIXMAP_HEIGHT(pixmap) \
(GST_VAAPI_PIXMAP(pixmap)->height)
/* GstVaapiPixmapClass hooks */
typedef gboolean (*GstVaapiPixmapCreateFunc) (GstVaapiPixmap *pixmap);
typedef gboolean (*GstVaapiPixmapRenderFunc) (GstVaapiPixmap *pixmap,
GstVaapiSurface *surface, const GstVaapiRectangle *crop_rect, guint flags);
/**
* GstVaapiPixmap:
*
* Base class for system-dependent pixmaps.
*/
struct _GstVaapiPixmap {
/*< private >*/
GstVaapiObject parent_instance;
/*< protected >*/
GstVideoFormat format;
guint width;
guint height;
guint use_foreign_pixmap : 1;
};
/**
* GstVaapiPixmapClass:
* @create: virtual function to create a pixmap with width and height
* @render: virtual function to render a #GstVaapiSurface into a pixmap
*
* Base class for system-dependent pixmaps.
*/
struct _GstVaapiPixmapClass {
/*< private >*/
GstVaapiObjectClass parent_class;
/*< protected >*/
GstVaapiPixmapCreateFunc create;
GstVaapiPixmapRenderFunc render;
};
GstVaapiPixmap *
gst_vaapi_pixmap_new(const GstVaapiPixmapClass *pixmap_class,
GstVaapiDisplay *display, GstVideoFormat format, guint width, guint height);
GstVaapiPixmap *
gst_vaapi_pixmap_new_from_native(const GstVaapiPixmapClass *pixmap_class,
GstVaapiDisplay *display, gpointer native_pixmap);
/* Inline reference counting for core libgstvaapi library */
#ifdef GST_VAAPI_CORE
#define gst_vaapi_pixmap_ref_internal(pixmap) \
((gpointer)gst_vaapi_mini_object_ref(GST_VAAPI_MINI_OBJECT(pixmap)))
#define gst_vaapi_pixmap_unref_internal(pixmap) \
gst_vaapi_mini_object_unref(GST_VAAPI_MINI_OBJECT(pixmap))
#define gst_vaapi_pixmap_replace_internal(old_pixmap_ptr, new_pixmap) \
gst_vaapi_mini_object_replace((GstVaapiMiniObject **)(old_pixmap_ptr), \
GST_VAAPI_MINI_OBJECT(new_pixmap))
#undef gst_vaapi_pixmap_ref
#define gst_vaapi_pixmap_ref(pixmap) \
gst_vaapi_pixmap_ref_internal((pixmap))
#undef gst_vaapi_pixmap_unref
#define gst_vaapi_pixmap_unref(pixmap) \
gst_vaapi_pixmap_unref_internal((pixmap))
#undef gst_vaapi_pixmap_replace
#define gst_vaapi_pixmap_replace(old_pixmap_ptr, new_pixmap) \
gst_vaapi_pixmap_replace_internal((old_pixmap_ptr), (new_pixmap))
#endif
G_END_DECLS
#endif /* GST_VAAPI_PIXMAP_PRIV_H */