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               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
  56 struct 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
  66 struct tgsi_full_declaration
  67 {
  68    struct tgsi_declaration Declaration;
  69    struct tgsi_declaration_range DeclarationRange;
  70    struct tgsi_declaration_semantic Semantic;
  71 };
  72
  73 struct 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
  86 struct 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
  96 union 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
 104 void
 105 tgsi_full_token_init(
 106    union tgsi_full_token *full_token );
 107
 108 void
 109 tgsi_full_token_free(
 110    union tgsi_full_token *full_token );
 111
 112 struct 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
 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 unsigned
 142 tgsi_num_tokens(const struct tgsi_token *tokens);
 143
 144 struct tgsi_token *
 145 tgsi_dup_tokens(const struct tgsi_token *tokens);
 146
 147 #if defined __cplusplus
 148 }
 149 #endif
 150
 151 #endif /* TGSI_PARSE_H */
 152