tgsi_parse.h revision a2a1a5805fd617e7f3cc8be44dd79b50da07ebb9 
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
35extern "C" {
36#endif
37
38struct tgsi_full_header
39{
40   struct tgsi_header      Header;
41   struct tgsi_processor   Processor;
42};
43
44struct 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
52struct 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
60struct 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_resource Resource;
68   struct tgsi_declaration_sampler_view SamplerView;
69   struct tgsi_declaration_array Array;
70};
71
72struct tgsi_full_immediate
73{
74   struct tgsi_immediate   Immediate;
75   union tgsi_immediate_data u[4];
76};
77
78struct 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
88struct tgsi_full_instruction
89{
90   struct tgsi_instruction             Instruction;
91   struct tgsi_instruction_predicate   Predicate;
92   struct tgsi_instruction_label       Label;
93   struct tgsi_instruction_texture     Texture;
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
99union 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
108struct 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
119unsigned
120tgsi_parse_init(
121   struct tgsi_parse_context *ctx,
122   const struct tgsi_token *tokens );
123
124void
125tgsi_parse_free(
126   struct tgsi_parse_context *ctx );
127
128boolean
129tgsi_parse_end_of_tokens(
130   struct tgsi_parse_context *ctx );
131
132void
133tgsi_parse_token(
134   struct tgsi_parse_context *ctx );
135
136static inline unsigned
137tgsi_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
144void
145tgsi_dump_tokens(const struct tgsi_token *tokens);
146
147struct tgsi_token *
148tgsi_dup_tokens(const struct tgsi_token *tokens);
149
150struct tgsi_token *
151tgsi_alloc_tokens(unsigned num_tokens);
152
153void
154tgsi_free_tokens(const struct tgsi_token *tokens);
155
156unsigned
157tgsi_get_processor_type(const struct tgsi_token *tokens);
158
159#if defined __cplusplus
160}
161#endif
162
163#endif /* TGSI_PARSE_H */
164
165