lp_tile_soa.h revision 5750a6426bc8d47f9801be5896b2d0f5ae3a5b12 
1/**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#ifndef LP_TILE_SOA_H
29#define LP_TILE_SOA_H
30
31#include "pipe/p_compiler.h"
32#include "tgsi/tgsi_exec.h" // for NUM_CHANNELS
33
34
35#ifdef __cplusplus
36extern "C" {
37#endif
38
39
40struct pipe_transfer;
41
42
43/**
44 * Cache tile size (width and height). This needs to be a power of two.
45 */
46#define TILE_ORDER 6
47#define TILE_SIZE (1 << TILE_ORDER)
48
49
50#define TILE_VECTOR_HEIGHT 4
51#define TILE_VECTOR_WIDTH 4
52
53extern const unsigned char
54tile_offset[TILE_VECTOR_HEIGHT][TILE_VECTOR_WIDTH];
55
56#define TILE_C_STRIDE (TILE_VECTOR_HEIGHT * TILE_VECTOR_WIDTH)
57#define TILE_X_STRIDE (NUM_CHANNELS * TILE_C_STRIDE)
58#define TILE_Y_STRIDE (TILE_VECTOR_HEIGHT * TILE_SIZE * NUM_CHANNELS)
59
60#define TILE_PIXEL(_p, _x, _y, _c) \
61   ((_p)[((_y) / TILE_VECTOR_HEIGHT) * TILE_Y_STRIDE + \
62         ((_x) / TILE_VECTOR_WIDTH) * TILE_X_STRIDE + \
63         (_c) * TILE_C_STRIDE + \
64         tile_offset[(_y) % TILE_VECTOR_HEIGHT][(_x) % TILE_VECTOR_WIDTH]])
65
66
67void
68lp_tile_read_4ub(enum pipe_format format,
69                 uint8_t *dst,
70                 const void *src, unsigned src_stride,
71                 unsigned x, unsigned y, unsigned w, unsigned h);
72
73
74void
75lp_tile_write_4ub(enum pipe_format format,
76                  const uint8_t *src,
77                  void *dst, unsigned dst_stride,
78                  unsigned x, unsigned y, unsigned w, unsigned h);
79
80
81
82#ifdef __cplusplus
83}
84#endif
85
86#endif
87