2 * Copyright 2009 Marek Olšák <maraeo@gmail.com>
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */
23 #ifndef R300_SHADER_SEMANTICS_H
24 #define R300_SHADER_SEMANTICS_H
26 #define ATTR_UNUSED (-1)
27 #define ATTR_COLOR_COUNT 2
28 #define ATTR_GENERIC_COUNT 16
30 /* This structure contains information about what attributes are written by VS
31 * or read by FS. (but not both) It's much easier to work with than
34 * The variables contain indices to tgsi_shader_info semantics and those
35 * indices are nothing else than input/output register numbers. */
36 struct r300_shader_semantics
{
39 int color
[ATTR_COLOR_COUNT
];
40 int bcolor
[ATTR_COLOR_COUNT
];
41 int generic
[ATTR_GENERIC_COUNT
];
45 static INLINE
void r300_shader_semantics_reset(
46 struct r300_shader_semantics
* info
)
50 info
->pos
= ATTR_UNUSED
;
51 info
->psize
= ATTR_UNUSED
;
52 info
->fog
= ATTR_UNUSED
;
54 for (i
= 0; i
< ATTR_COLOR_COUNT
; i
++) {
55 info
->color
[i
] = ATTR_UNUSED
;
56 info
->bcolor
[i
] = ATTR_UNUSED
;
59 for (i
= 0; i
< ATTR_GENERIC_COUNT
; i
++) {
60 info
->generic
[i
] = ATTR_UNUSED
;