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_compiler.h"
32 #include "pipe/p_shader_tokens.h"
33
34 #if defined __cplusplus
35 extern "C" {
36 #endif
37
38 struct tgsi_full_header
39 {
40 struct tgsi_header Header;
41 struct tgsi_processor Processor;
42 };
43
44 struct tgsi_full_dst_register
45 {
46 struct tgsi_dst_register Register;
47 struct tgsi_src_register Indirect;
48 struct tgsi_dimension Dimension;
49 struct tgsi_src_register DimIndirect;
50 };
51
52 struct tgsi_full_src_register
53 {
54 struct tgsi_src_register Register;
55 struct tgsi_src_register Indirect;
56 struct tgsi_dimension Dimension;
57 struct tgsi_src_register DimIndirect;
58 };
59
60 struct tgsi_immediate_array_data
61 {
62 union tgsi_immediate_data *u;
63 };
64
65 struct tgsi_full_declaration
66 {
67 struct tgsi_declaration Declaration;
68 struct tgsi_declaration_range Range;
69 struct tgsi_declaration_dimension Dim;
70 struct tgsi_declaration_interp Interp;
71 struct tgsi_declaration_semantic Semantic;
72 struct tgsi_immediate_array_data ImmediateData;
73 struct tgsi_declaration_resource Resource;
74 struct tgsi_declaration_sampler_view SamplerView;
75 };
76
77 struct tgsi_full_immediate
78 {
79 struct tgsi_immediate Immediate;
80 union tgsi_immediate_data u[4];
81 };
82
83 struct tgsi_full_property
84 {
85 struct tgsi_property Property;
86 struct tgsi_property_data u[8];
87 };
88
89 #define TGSI_FULL_MAX_DST_REGISTERS 2
90 #define TGSI_FULL_MAX_SRC_REGISTERS 5 /* SAMPLE_D has 5 */
91 #define TGSI_FULL_MAX_TEX_OFFSETS 4
92
93 struct tgsi_full_instruction
94 {
95 struct tgsi_instruction Instruction;
96 struct tgsi_instruction_predicate Predicate;
97 struct tgsi_instruction_label Label;
98 struct tgsi_instruction_texture Texture;
99 struct tgsi_full_dst_register Dst[TGSI_FULL_MAX_DST_REGISTERS];
100 struct tgsi_full_src_register Src[TGSI_FULL_MAX_SRC_REGISTERS];
101 struct tgsi_texture_offset TexOffsets[TGSI_FULL_MAX_TEX_OFFSETS];
102 };
103
104 union tgsi_full_token
105 {
106 struct tgsi_token Token;
107 struct tgsi_full_declaration FullDeclaration;
108 struct tgsi_full_immediate FullImmediate;
109 struct tgsi_full_instruction FullInstruction;
110 struct tgsi_full_property FullProperty;
111 };
112
113 struct tgsi_parse_context
114 {
115 const struct tgsi_token *Tokens;
116 unsigned Position;
117 struct tgsi_full_header FullHeader;
118 union tgsi_full_token FullToken;
119 };
120
121 #define TGSI_PARSE_OK 0
122 #define TGSI_PARSE_ERROR 1
123
124 unsigned
125 tgsi_parse_init(
126 struct tgsi_parse_context *ctx,
127 const struct tgsi_token *tokens );
128
129 void
130 tgsi_parse_free(
131 struct tgsi_parse_context *ctx );
132
133 boolean
134 tgsi_parse_end_of_tokens(
135 struct tgsi_parse_context *ctx );
136
137 void
138 tgsi_parse_token(
139 struct tgsi_parse_context *ctx );
140
141 static INLINE unsigned
tgsi_num_tokens(const struct tgsi_token * tokens)142 tgsi_num_tokens(const struct tgsi_token *tokens)
143 {
144 struct tgsi_header header;
145 memcpy(&header, tokens, sizeof(header));
146 return header.HeaderSize + header.BodySize;
147 }
148
149 void
150 tgsi_dump_tokens(const struct tgsi_token *tokens);
151
152 struct tgsi_token *
153 tgsi_dup_tokens(const struct tgsi_token *tokens);
154
155 struct tgsi_token *
156 tgsi_alloc_tokens(unsigned num_tokens);
157
158
159 #if defined __cplusplus
160 }
161 #endif
162
163 #endif /* TGSI_PARSE_H */
164
165