2 * Copyright (C) <2013> Wim Taymans <wim.taymans@gmail.com>
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
20 #ifndef __GST_VIDEO_TILE_H__
21 #define __GST_VIDEO_TILE_H__
29 * @GST_VIDEO_TILE_TYPE_INDEXED: Tiles are indexed. Use
30 * gst_video_tile_get_index () to retrieve the tile at the requested
33 * Enum value describing the most common tiling types.
37 GST_VIDEO_TILE_TYPE_INDEXED = 0
40 #define GST_VIDEO_TILE_TYPE_SHIFT (16)
41 #define GST_VIDEO_TILE_TYPE_MASK ((1 << GST_VIDEO_TILE_TYPE_SHIFT) - 1)
44 * GST_VIDEO_TILE_MAKE_MODE:
45 * @num: the mode number to create
46 * @type: the tile mode type
48 * use this macro to create new tile modes.
50 #define GST_VIDEO_TILE_MAKE_MODE(num, type) \
51 (((num) << GST_VIDEO_TILE_TYPE_SHIFT) | (GST_VIDEO_TILE_TYPE_ ##type))
54 * GST_VIDEO_TILE_MODE_TYPE:
55 * @mode: the tile mode
57 * Get the tile mode type of @mode
59 #define GST_VIDEO_TILE_MODE_TYPE(mode) ((mode) & GST_VIDEO_TILE_TYPE_MASK)
62 * GST_VIDEO_TILE_MODE_IS_INDEXED:
65 * Check if @mode is an indexed tile type
67 #define GST_VIDEO_TILE_MODE_IS_INDEXED(mode) (GST_VIDEO_TILE_MODE_TYPE(mode) == GST_VIDEO_TILE_TYPE_INDEXED)
70 #define GST_VIDEO_TILE_Y_TILES_SHIFT (16)
71 #define GST_VIDEO_TILE_X_TILES_MASK ((1 << GST_VIDEO_TILE_Y_TILES_SHIFT) - 1)
74 * GST_VIDEO_TILE_MAKE_STRIDE:
75 * @x_tiles: number of tiles in X
76 * @y_tiles: number of tiles in Y
78 * Encode the number of tile in X and Y into the stride.
80 #define GST_VIDEO_TILE_MAKE_STRIDE(x_tiles, y_tiles) \
81 (((y_tiles) << GST_VIDEO_TILE_Y_TILES_SHIFT) | (x_tiles))
84 * GST_VIDEO_TILE_X_TILES:
85 * @stride: plane stride
87 * Extract the number of tiles in X from the stride value.
89 #define GST_VIDEO_TILE_X_TILES(stride) ((stride) & GST_VIDEO_TILE_X_TILES_MASK)
92 * GST_VIDEO_TILE_Y_TILES:
93 * @stride: plane stride
95 * Extract the number of tiles in Y from the stride value.
97 #define GST_VIDEO_TILE_Y_TILES(stride) ((stride) >> GST_VIDEO_TILE_Y_TILES_SHIFT)
101 * @GST_VIDEO_TILE_MODE_UNKNOWN: Unknown or unset tile mode
102 * @GST_VIDEO_TILE_MODE_ZFLIPZ_2X2: Every four adjacent blocks - two
103 * horizontally and two vertically are grouped together and are located
104 * in memory in Z or flipped Z order. In case of odd rows, the last row
105 * of blocks is arranged in linear order.
107 * Enum value describing the available tiling modes.
111 GST_VIDEO_TILE_MODE_UNKNOWN = 0,
112 GST_VIDEO_TILE_MODE_ZFLIPZ_2X2 = GST_VIDEO_TILE_MAKE_MODE (1, INDEXED),
116 guint gst_video_tile_get_index (GstVideoTileMode mode, gint x, gint y,
117 gint x_tiles, gint y_tiles);
122 #endif /* __GST_VIDEO_TILE_H__ */