src/gallium/auxiliary/tgsi/tgsi_parse.h

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