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/*
* gstvaapivalue.h - GValue implementations specific to VA-API
*
* 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_VALUE_H
#define GST_VAAPI_VALUE_H
#include <glib-object.h>
#include <gst/vaapi/gstvaapitypes.h>
G_BEGIN_DECLS
/**
* GST_VAAPI_TYPE_POINT:
*
* A #GstVaapiPoint type that represents a 2D point coordinates.
*
* Return value: the GType of #GstVaapiPoint
*/
#define GST_VAAPI_TYPE_POINT gst_vaapi_point_get_type()
/**
* GST_VAAPI_TYPE_RECTANGLE:
*
* A #GstVaapiRectangle type that represents a 2D rectangle position
* and size.
*
* Return value: the GType of #GstVaapiRectangle
*/
#define GST_VAAPI_TYPE_RECTANGLE gst_vaapi_rectangle_get_type()
/**
* GST_VAAPI_TYPE_RENDER_MODE:
*
* A #GstVaapiRenderMode type that represents the VA display backend
* rendering mode: overlay (2D engine) or textured-blit (3D engine).
*
* Return value: the #GType of GstVaapiRenderMode
*/
#define GST_VAAPI_TYPE_RENDER_MODE gst_vaapi_render_mode_get_type()
/**
* GST_VAAPI_TYPE_ROTATION:
*
* A type that represents the VA display rotation.
*
* Return value: the #GType of GstVaapiRotation
*/
#define GST_VAAPI_TYPE_ROTATION gst_vaapi_rotation_get_type()
/**
* GST_VAAPI_TYPE_RATE_CONTROL:
*
* A type that represents the VA rate control.
*
* Return value: the #GType of GstVaapiRateControl
*/
#define GST_VAAPI_TYPE_RATE_CONTROL gst_vaapi_rate_control_get_type()
GType
gst_vaapi_point_get_type(void) G_GNUC_CONST;
GType
gst_vaapi_rectangle_get_type(void) G_GNUC_CONST;
GType
gst_vaapi_render_mode_get_type(void) G_GNUC_CONST;
GType
gst_vaapi_rotation_get_type(void) G_GNUC_CONST;
GType
gst_vaapi_rate_control_get_type(void) G_GNUC_CONST;
/**
* GST_VAAPI_POPCOUNT32:
* @x: the value from which to compute population count
*
* Computes the number of bits set in the supplied 32-bit value @x.
*
* Return value: the number of bits set in @x
*/
#define GST_VAAPI_POPCOUNT32(x) \
GST_VAAPI_POPCOUNT32_0(x)
#define GST_VAAPI_POPCOUNT32_0(x) \
GST_VAAPI_POPCOUNT32_1((x) - (((x) >> 1) & 0x55555555))
#define GST_VAAPI_POPCOUNT32_1(x) \
GST_VAAPI_POPCOUNT32_2(((x) & 0x33333333) + (((x) >> 2) & 0x33333333))
#define GST_VAAPI_POPCOUNT32_2(x) \
GST_VAAPI_POPCOUNT32_3((x) + ((x) >> 4))
#define GST_VAAPI_POPCOUNT32_3(x) \
GST_VAAPI_POPCOUNT32_4((x) & 0x0f0f0f0f)
#define GST_VAAPI_POPCOUNT32_4(x) \
(((x) * 0x01010101) >> 24)
/* --- GstVaapiEnumSubset --- */
/**
* GstVaapiEnumSubset:
* @name: name of the enum subset
* @parent_type: parent enum type
* @type: registered #GType
* @type_info: #GTypeInfo used to build the @type
* @values: pointer to a static array of #GEnumValue elements
* @num_values: number of elements in the @values array, including the
* terminator
*
* Structure that holds the required information to build a GEnum
* subset from the supplied @parent_type, i.e. a subset of its values.
*/
typedef struct {
GType parent_type;
GType type;
GTypeInfo type_info;
const gchar *type_name;
GEnumValue *values;
guint num_values;
} GstVaapiEnumSubset;
G_GNUC_INTERNAL
GType
gst_vaapi_type_define_enum_subset_from_mask(GstVaapiEnumSubset *subset,
guint32 mask);
#define GST_VAAPI_TYPE_DEFINE_ENUM_SUBSET_FROM_MASK(NAME, name, TYPE, MASK) \
static GType \
G_PASTE(name,_get_type)(void) \
{ \
static GEnumValue enum_values[GST_VAAPI_POPCOUNT32(MASK) + 1]; \
static GstVaapiEnumSubset subset = { \
.type_name = G_STRINGIFY(NAME), \
.values = enum_values, \
.num_values = G_N_ELEMENTS(enum_values), \
}; \
if (g_once_init_enter(&subset.parent_type)) \
g_once_init_leave(&subset.parent_type, TYPE); \
return gst_vaapi_type_define_enum_subset_from_mask(&subset, MASK); \
}
G_GNUC_INTERNAL
const gchar *
gst_vaapi_enum_type_get_nick (GType type, gint value);
G_END_DECLS
#endif /* GST_VAAPI_VALUE_H */
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