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_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_src_register Indirect; 48 struct tgsi_dimension Dimension; 49 struct tgsi_src_register DimIndirect; 50 }; 51 52 struct tgsi_full_src_register 53 { 54 struct tgsi_src_register Register; 55 struct tgsi_src_register Indirect; 56 struct tgsi_dimension Dimension; 57 struct tgsi_src_register DimIndirect; 58 }; 59 60 struct tgsi_immediate_array_data 61 { 62 union tgsi_immediate_data *u; 63 }; 64 65 struct tgsi_full_declaration 66 { 67 struct tgsi_declaration Declaration; 68 struct tgsi_declaration_range Range; 69 struct tgsi_declaration_dimension Dim; 70 struct tgsi_declaration_interp Interp; 71 struct tgsi_declaration_semantic Semantic; 72 struct tgsi_immediate_array_data ImmediateData; 73 struct tgsi_declaration_resource Resource; 74 struct tgsi_declaration_sampler_view SamplerView; 75 }; 76 77 struct tgsi_full_immediate 78 { 79 struct tgsi_immediate Immediate; 80 union tgsi_immediate_data u[4]; 81 }; 82 83 struct tgsi_full_property 84 { 85 struct tgsi_property Property; 86 struct tgsi_property_data u[8]; 87 }; 88 89 #define TGSI_FULL_MAX_DST_REGISTERS 2 90 #define TGSI_FULL_MAX_SRC_REGISTERS 5 /* SAMPLE_D has 5 */ 91 #define TGSI_FULL_MAX_TEX_OFFSETS 4 92 93 struct tgsi_full_instruction 94 { 95 struct tgsi_instruction Instruction; 96 struct tgsi_instruction_predicate Predicate; 97 struct tgsi_instruction_label Label; 98 struct tgsi_instruction_texture Texture; 99 struct tgsi_full_dst_register Dst[TGSI_FULL_MAX_DST_REGISTERS]; 100 struct tgsi_full_src_register Src[TGSI_FULL_MAX_SRC_REGISTERS]; 101 struct tgsi_texture_offset TexOffsets[TGSI_FULL_MAX_TEX_OFFSETS]; 102 }; 103 104 union tgsi_full_token 105 { 106 struct tgsi_token Token; 107 struct tgsi_full_declaration FullDeclaration; 108 struct tgsi_full_immediate FullImmediate; 109 struct tgsi_full_instruction FullInstruction; 110 struct tgsi_full_property FullProperty; 111 }; 112 113 struct tgsi_parse_context 114 { 115 const struct tgsi_token *Tokens; 116 unsigned Position; 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 static INLINE unsigned 142 tgsi_num_tokens(const struct tgsi_token *tokens) 143 { 144 struct tgsi_header header; 145 memcpy(&header, tokens, sizeof(header)); 146 return header.HeaderSize + header.BodySize; 147 } 148 149 void 150 tgsi_dump_tokens(const struct tgsi_token *tokens); 151 152 struct tgsi_token * 153 tgsi_dup_tokens(const struct tgsi_token *tokens); 154 155 struct tgsi_token * 156 tgsi_alloc_tokens(unsigned num_tokens); 157 158 159 #if defined __cplusplus 160 } 161 #endif 162 163 #endif /* TGSI_PARSE_H */ 164 165
