gstreamer/gst-libs/gst/vaapi/gstvaapitexture_priv.h
Gwenole Beauchesne 93418ed5ee texture: add generic helper to create textures.
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.
2015-01-27 18:11:44 +01:00

160 lines
4.7 KiB
C

/*
* gstvaapitexture_priv.h - VA texture abstraction (private definitions)
*
* Copyright (C) 2010-2011 Splitted-Desktop Systems
* Author: Gwenole Beauchesne <gwenole.beauchesne@splitted-desktop.com>
* Copyright (C) 2012-2014 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_TEXTURE_PRIV_H
#define GST_VAAPI_TEXTURE_PRIV_H
#include "gstvaapiobject_priv.h"
G_BEGIN_DECLS
#define GST_VAAPI_TEXTURE_CLASS(klass) \
((GstVaapiTextureClass *)(klass))
#define GST_VAAPI_TEXTURE_GET_CLASS(obj) \
GST_VAAPI_TEXTURE_CLASS (GST_VAAPI_OBJECT_GET_CLASS (obj))
/**
* GST_VAAPI_TEXTURE_ID:
* @texture: a #GstVaapiTexture
*
* Macro that evaluates to the GL texture id associated with the @texture
*/
#undef GST_VAAPI_TEXTURE_ID
#define GST_VAAPI_TEXTURE_ID(texture) \
(GST_VAAPI_OBJECT_ID (texture))
/**
* GST_VAAPI_TEXTURE_TARGET:
* @texture: a #GstVaapiTexture
*
* Macro that evaluates to the GL texture target associated with the @texture
*/
#undef GST_VAAPI_TEXTURE_TARGET
#define GST_VAAPI_TEXTURE_TARGET(texture) \
(GST_VAAPI_TEXTURE (texture)->gl_target)
/**
* GST_VAAPI_TEXTURE_FORMAT:
* @texture: a #GstVaapiTexture
*
* Macro that evaluates to the GL texture format associated with the @texture
*/
#undef GST_VAAPI_TEXTURE_FORMAT
#define GST_VAAPI_TEXTURE_FORMAT(texture) \
(GST_VAAPI_TEXTURE (texture)->gl_format)
/**
* GST_VAAPI_TEXTURE_WIDTH:
* @texture: a #GstVaapiTexture
*
* Macro that evaluates to the GL texture width associated with the @texture
*/
#undef GST_VAAPI_TEXTURE_WIDTH
#define GST_VAAPI_TEXTURE_WIDTH(texture) \
(GST_VAAPI_TEXTURE (texture)->width)
/**
* GST_VAAPI_TEXTURE_HEIGHT:
* @texture: a #GstVaapiTexture
*
* Macro that evaluates to the GL texture height associated with the @texture
*/
#undef GST_VAAPI_TEXTURE_HEIGHT
#define GST_VAAPI_TEXTURE_HEIGHT(texture) \
(GST_VAAPI_TEXTURE (texture)->height)
/* GstVaapiTextureClass hooks */
typedef gboolean (*GstVaapiTextureAllocateFunc) (GstVaapiTexture * texture);
typedef gboolean (*GstVaapiTexturePutSurfaceFunc) (GstVaapiTexture * texture,
GstVaapiSurface * surface, const GstVaapiRectangle * crop_rect,
guint flags);
typedef struct _GstVaapiTextureClass GstVaapiTextureClass;
/**
* GstVaapiTexture:
*
* Base class for API-dependent textures.
*/
struct _GstVaapiTexture {
/*< private >*/
GstVaapiObject parent_instance;
/*< protected >*/
guint gl_target;
guint gl_format;
guint width;
guint height;
guint is_wrapped:1;
};
/**
* GstVaapiTextureClass:
* @put_surface: virtual function to render a #GstVaapiSurface into a texture
*
* Base class for API-dependent textures.
*/
struct _GstVaapiTextureClass {
/*< private >*/
GstVaapiObjectClass parent_class;
/*< protected >*/
GstVaapiTextureAllocateFunc allocate;
GstVaapiTexturePutSurfaceFunc put_surface;
};
GstVaapiTexture *
gst_vaapi_texture_new_internal (const GstVaapiTextureClass * klass,
GstVaapiDisplay * display, GstVaapiID id, guint target, guint format,
guint width, guint height);
/* Inline reference counting for core libgstvaapi library */
#ifdef IN_LIBGSTVAAPI_CORE
#define gst_vaapi_texture_ref_internal(texture) \
((gpointer)gst_vaapi_mini_object_ref (GST_VAAPI_MINI_OBJECT (texture)))
#define gst_vaapi_texture_unref_internal(texture) \
gst_vaapi_mini_object_unref (GST_VAAPI_MINI_OBJECT (texture))
#define gst_vaapi_texture_replace_internal(old_texture_ptr, new_texture) \
gst_vaapi_mini_object_replace ((GstVaapiMiniObject **)(old_texture_ptr), \
GST_VAAPI_MINI_OBJECT (new_texture))
#undef gst_vaapi_texture_ref
#define gst_vaapi_texture_ref(texture) \
gst_vaapi_texture_ref_internal ((texture))
#undef gst_vaapi_texture_unref
#define gst_vaapi_texture_unref(texture) \
gst_vaapi_texture_unref_internal ((texture))
#undef gst_vaapi_texture_replace
#define gst_vaapi_texture_replace(old_texture_ptr, new_texture) \
gst_vaapi_texture_replace_internal ((old_texture_ptr), (new_texture))
#endif
G_END_DECLS
#endif /* GST_VAAPI_TEXTURE_PRIV_H */