tgsi_parse.h revision baa7ff47d548cdcc1ea68657ee1b0500f78041be 
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_version
38{
39   struct tgsi_version  Version;
40};
41
42struct tgsi_full_header
43{
44   struct tgsi_header      Header;
45   struct tgsi_processor   Processor;
46};
47
48struct tgsi_full_dst_register
49{
50   struct tgsi_dst_register               DstRegister;
51   struct tgsi_src_register               DstRegisterInd;
52   struct tgsi_dst_register_ext_concode   DstRegisterExtConcode;
53   struct tgsi_dst_register_ext_modulate  DstRegisterExtModulate;
54};
55
56struct tgsi_full_src_register
57{
58   struct tgsi_src_register         SrcRegister;
59   struct tgsi_src_register_ext_swz SrcRegisterExtSwz;
60   struct tgsi_src_register_ext_mod SrcRegisterExtMod;
61   struct tgsi_src_register         SrcRegisterInd;
62   struct tgsi_dimension            SrcRegisterDim;
63   struct tgsi_src_register         SrcRegisterDimInd;
64};
65
66struct tgsi_full_declaration
67{
68   struct tgsi_declaration Declaration;
69   struct tgsi_declaration_range DeclarationRange;
70   struct tgsi_declaration_semantic Semantic;
71};
72
73struct tgsi_full_immediate
74{
75   struct tgsi_immediate   Immediate;
76   union
77   {
78      const void                          *Pointer;
79      const struct tgsi_immediate_float32 *ImmediateFloat32;
80   } u;
81};
82
83#define TGSI_FULL_MAX_DST_REGISTERS 2
84#define TGSI_FULL_MAX_SRC_REGISTERS 4 /* TXD has 4 */
85
86struct tgsi_full_instruction
87{
88   struct tgsi_instruction             Instruction;
89   struct tgsi_instruction_ext_nv      InstructionExtNv;
90   struct tgsi_instruction_ext_label   InstructionExtLabel;
91   struct tgsi_instruction_ext_texture InstructionExtTexture;
92   struct tgsi_full_dst_register       FullDstRegisters[TGSI_FULL_MAX_DST_REGISTERS];
93   struct tgsi_full_src_register       FullSrcRegisters[TGSI_FULL_MAX_SRC_REGISTERS];
94};
95
96union tgsi_full_token
97{
98   struct tgsi_token             Token;
99   struct tgsi_full_declaration  FullDeclaration;
100   struct tgsi_full_immediate    FullImmediate;
101   struct tgsi_full_instruction  FullInstruction;
102};
103
104void
105tgsi_full_token_init(
106   union tgsi_full_token *full_token );
107
108void
109tgsi_full_token_free(
110   union tgsi_full_token *full_token );
111
112struct tgsi_parse_context
113{
114   const struct tgsi_token    *Tokens;
115   unsigned                   Position;
116   struct tgsi_full_version   FullVersion;
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
124unsigned
125tgsi_parse_init(
126   struct tgsi_parse_context *ctx,
127   const struct tgsi_token *tokens );
128
129void
130tgsi_parse_free(
131   struct tgsi_parse_context *ctx );
132
133boolean
134tgsi_parse_end_of_tokens(
135   struct tgsi_parse_context *ctx );
136
137void
138tgsi_parse_token(
139   struct tgsi_parse_context *ctx );
140
141unsigned
142tgsi_num_tokens(const struct tgsi_token *tokens);
143
144struct tgsi_token *
145tgsi_dup_tokens(const struct tgsi_token *tokens);
146
147#if defined __cplusplus
148}
149#endif
150
151#endif /* TGSI_PARSE_H */
152
153