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 TGSI_NUM_CHANNELS */
33 #include "lp_limits.h"
34
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38
39
40 struct pipe_transfer;
41
42
43 #define TILE_VECTOR_HEIGHT 4
44 #define TILE_VECTOR_WIDTH 4
45
46 extern const unsigned char
47 tile_offset[TILE_VECTOR_HEIGHT][TILE_VECTOR_WIDTH];
48
49 #define TILE_C_STRIDE (TILE_VECTOR_HEIGHT * TILE_VECTOR_WIDTH) //16
50 #define TILE_X_STRIDE (TGSI_NUM_CHANNELS * TILE_C_STRIDE) //64
51 #define TILE_Y_STRIDE (TILE_VECTOR_HEIGHT * TILE_SIZE * TGSI_NUM_CHANNELS) //1024
52
53
54 #ifdef DEBUG
55 extern unsigned lp_tile_unswizzle_count;
56 extern unsigned lp_tile_swizzle_count;
57 #endif
58
59
60 /**
61 * Return offset of the given pixel (and color channel) from the start
62 * of a tile, in bytes.
63 */
64 static INLINE unsigned
tile_pixel_offset(unsigned x,unsigned y,unsigned c)65 tile_pixel_offset(unsigned x, unsigned y, unsigned c)
66 {
67 unsigned ix = (x / TILE_VECTOR_WIDTH) * TILE_X_STRIDE;
68 unsigned iy = (y / TILE_VECTOR_HEIGHT) * TILE_Y_STRIDE;
69 unsigned offset = iy + ix + c * TILE_C_STRIDE +
70 tile_offset[y % TILE_VECTOR_HEIGHT][x % TILE_VECTOR_WIDTH];
71 return offset;
72 }
73
74
75 #define TILE_PIXEL(_p, _x, _y, _c) ((_p)[tile_pixel_offset(_x, _y, _c)])
76
77
78 void
79 lp_tile_swizzle_4ub(enum pipe_format format,
80 uint8_t *dst,
81 const void *src, unsigned src_stride,
82 unsigned x, unsigned y);
83
84
85 void
86 lp_tile_unswizzle_4ub(enum pipe_format format,
87 const uint8_t *src,
88 void *dst, unsigned dst_stride,
89 unsigned x, unsigned y);
90
91
92
93 #ifdef __cplusplus
94 }
95 #endif
96
97 #endif
98