tgsi_parse.h revision 3ff688ea299581e60caf5d6e1a464f68c717fe83 
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 TGSI_PARSE_H
29#define TGSI_PARSE_H
30
31#include "pipe/p_shader_tokens.h"
32
33#if defined __cplusplus
34extern "C" {
35#endif
36
37struct tgsi_full_header
38{
39   struct tgsi_header      Header;
40   struct tgsi_processor   Processor;
41};
42
43struct tgsi_full_dst_register
44{
45   struct tgsi_dst_register               Register;
46   struct tgsi_src_register               Indirect;
47};
48
49struct tgsi_full_src_register
50{
51   struct tgsi_src_register         Register;
52   struct tgsi_src_register         Indirect;
53   struct tgsi_dimension            Dimension;
54   struct tgsi_src_register         DimIndirect;
55};
56
57struct tgsi_full_declaration
58{
59   struct tgsi_declaration Declaration;
60   struct tgsi_declaration_range Range;
61   struct tgsi_declaration_semantic Semantic;
62};
63
64struct tgsi_full_immediate
65{
66   struct tgsi_immediate   Immediate;
67   union tgsi_immediate_data u[4];
68};
69
70struct tgsi_full_property
71{
72   struct tgsi_property   Property;
73   struct tgsi_property_data u[8];
74};
75
76#define TGSI_FULL_MAX_DST_REGISTERS 2
77#define TGSI_FULL_MAX_SRC_REGISTERS 4 /* TXD has 4 */
78
79struct tgsi_full_instruction
80{
81   struct tgsi_instruction             Instruction;
82   struct tgsi_instruction_predicate   Predicate;
83   struct tgsi_instruction_label       Label;
84   struct tgsi_instruction_texture     Texture;
85   struct tgsi_full_dst_register       Dst[TGSI_FULL_MAX_DST_REGISTERS];
86   struct tgsi_full_src_register       Src[TGSI_FULL_MAX_SRC_REGISTERS];
87};
88
89union tgsi_full_token
90{
91   struct tgsi_token             Token;
92   struct tgsi_full_declaration  FullDeclaration;
93   struct tgsi_full_immediate    FullImmediate;
94   struct tgsi_full_instruction  FullInstruction;
95   struct tgsi_full_property     FullProperty;
96};
97
98struct tgsi_parse_context
99{
100   const struct tgsi_token    *Tokens;
101   unsigned                   Position;
102   struct tgsi_full_header    FullHeader;
103   union tgsi_full_token      FullToken;
104};
105
106#define TGSI_PARSE_OK      0
107#define TGSI_PARSE_ERROR   1
108
109unsigned
110tgsi_parse_init(
111   struct tgsi_parse_context *ctx,
112   const struct tgsi_token *tokens );
113
114void
115tgsi_parse_free(
116   struct tgsi_parse_context *ctx );
117
118boolean
119tgsi_parse_end_of_tokens(
120   struct tgsi_parse_context *ctx );
121
122void
123tgsi_parse_token(
124   struct tgsi_parse_context *ctx );
125
126unsigned
127tgsi_num_tokens(const struct tgsi_token *tokens);
128
129struct tgsi_token *
130tgsi_dup_tokens(const struct tgsi_token *tokens);
131
132#if defined __cplusplus
133}
134#endif
135
136#endif /* TGSI_PARSE_H */
137
138