1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
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 VMWARE 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_ind_register Indirect;
48 struct tgsi_dimension Dimension;
49 struct tgsi_ind_register DimIndirect;
50 };
51
52 struct tgsi_full_src_register
53 {
54 struct tgsi_src_register Register;
55 struct tgsi_ind_register Indirect;
56 struct tgsi_dimension Dimension;
57 struct tgsi_ind_register DimIndirect;
58 };
59
60 struct tgsi_full_declaration
61 {
62 struct tgsi_declaration Declaration;
63 struct tgsi_declaration_range Range;
64 struct tgsi_declaration_dimension Dim;
65 struct tgsi_declaration_interp Interp;
66 struct tgsi_declaration_semantic Semantic;
67 struct tgsi_declaration_image Image;
68 struct tgsi_declaration_sampler_view SamplerView;
69 struct tgsi_declaration_array Array;
70 };
71
72 struct tgsi_full_immediate
73 {
74 struct tgsi_immediate Immediate;
75 union tgsi_immediate_data u[4];
76 };
77
78 struct tgsi_full_property
79 {
80 struct tgsi_property Property;
81 struct tgsi_property_data u[8];
82 };
83
84 #define TGSI_FULL_MAX_DST_REGISTERS 2
85 #define TGSI_FULL_MAX_SRC_REGISTERS 5 /* SAMPLE_D has 5 */
86 #define TGSI_FULL_MAX_TEX_OFFSETS 4
87
88 struct tgsi_full_instruction
89 {
90 struct tgsi_instruction Instruction;
91 struct tgsi_instruction_label Label;
92 struct tgsi_instruction_texture Texture;
93 struct tgsi_instruction_memory Memory;
94 struct tgsi_full_dst_register Dst[TGSI_FULL_MAX_DST_REGISTERS];
95 struct tgsi_full_src_register Src[TGSI_FULL_MAX_SRC_REGISTERS];
96 struct tgsi_texture_offset TexOffsets[TGSI_FULL_MAX_TEX_OFFSETS];
97 };
98
99 union tgsi_full_token
100 {
101 struct tgsi_token Token;
102 struct tgsi_full_declaration FullDeclaration;
103 struct tgsi_full_immediate FullImmediate;
104 struct tgsi_full_instruction FullInstruction;
105 struct tgsi_full_property FullProperty;
106 };
107
108 struct tgsi_parse_context
109 {
110 const struct tgsi_token *Tokens;
111 unsigned Position;
112 struct tgsi_full_header FullHeader;
113 union tgsi_full_token FullToken;
114 };
115
116 #define TGSI_PARSE_OK 0
117 #define TGSI_PARSE_ERROR 1
118
119 unsigned
120 tgsi_parse_init(
121 struct tgsi_parse_context *ctx,
122 const struct tgsi_token *tokens );
123
124 void
125 tgsi_parse_free(
126 struct tgsi_parse_context *ctx );
127
128 boolean
129 tgsi_parse_end_of_tokens(
130 struct tgsi_parse_context *ctx );
131
132 void
133 tgsi_parse_token(
134 struct tgsi_parse_context *ctx );
135
136 static inline unsigned
tgsi_num_tokens(const struct tgsi_token * tokens)137 tgsi_num_tokens(const struct tgsi_token *tokens)
138 {
139 struct tgsi_header header;
140 memcpy(&header, tokens, sizeof(header));
141 return header.HeaderSize + header.BodySize;
142 }
143
144 void
145 tgsi_dump_tokens(const struct tgsi_token *tokens);
146
147 struct tgsi_token *
148 tgsi_dup_tokens(const struct tgsi_token *tokens);
149
150 struct tgsi_token *
151 tgsi_alloc_tokens(unsigned num_tokens);
152
153 void
154 tgsi_free_tokens(const struct tgsi_token *tokens);
155
156 unsigned
157 tgsi_get_processor_type(const struct tgsi_token *tokens);
158
159 #if defined __cplusplus
160 }
161 #endif
162
163 #endif /* TGSI_PARSE_H */
164
165