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| Rev | Author | Line No. | Line |
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| 5564 | serge | 1 | /* -*- c++ -*- */ |
| 2 | /* |
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| 3 | * Copyright © 2010 Intel Corporation |
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| 4 | * |
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| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 6 | * copy of this software and associated documentation files (the "Software"), |
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| 7 | * to deal in the Software without restriction, including without limitation |
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| 8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 9 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 10 | * Software is furnished to do so, subject to the following conditions: |
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| 11 | * |
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| 12 | * The above copyright notice and this permission notice (including the next |
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| 13 | * paragraph) shall be included in all copies or substantial portions of the |
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| 14 | * Software. |
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| 15 | * |
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| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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| 21 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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| 22 | * DEALINGS IN THE SOFTWARE. |
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| 23 | */ |
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| 24 | |||
| 25 | #pragma once |
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| 26 | #ifndef GLSL_SYMBOL_TABLE |
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| 27 | #define GLSL_SYMBOL_TABLE |
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| 28 | |||
| 29 | #include |
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| 30 | |||
| 31 | extern "C" { |
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| 32 | #include "program/symbol_table.h" |
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| 33 | } |
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| 34 | #include "ir.h" |
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| 35 | |||
| 36 | class symbol_table_entry; |
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| 37 | struct glsl_type; |
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| 38 | |||
| 39 | /** |
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| 40 | * Facade class for _mesa_symbol_table |
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| 41 | * |
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| 42 | * Wraps the existing \c _mesa_symbol_table data structure to enforce some |
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| 43 | * type safe and some symbol table invariants. |
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| 44 | */ |
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| 45 | struct glsl_symbol_table { |
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| 46 | DECLARE_RALLOC_CXX_OPERATORS(glsl_symbol_table) |
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| 47 | |||
| 48 | glsl_symbol_table(); |
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| 49 | ~glsl_symbol_table(); |
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| 50 | |||
| 51 | /* In 1.10, functions and variables have separate namespaces. */ |
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| 52 | bool separate_function_namespace; |
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| 53 | |||
| 54 | void push_scope(); |
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| 55 | void pop_scope(); |
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| 56 | |||
| 57 | /** |
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| 58 | * Determine whether a name was declared at the current scope |
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| 59 | */ |
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| 60 | bool name_declared_this_scope(const char *name); |
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| 61 | |||
| 62 | /** |
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| 63 | * \name Methods to add symbols to the table |
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| 64 | * |
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| 65 | * There is some temptation to rename all these functions to \c add_symbol |
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| 66 | * or similar. However, this breaks symmetry with the getter functions and |
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| 67 | * reduces the clarity of the intention of code that uses these methods. |
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| 68 | */ |
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| 69 | /*@{*/ |
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| 70 | bool add_variable(ir_variable *v); |
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| 71 | bool add_type(const char *name, const glsl_type *t); |
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| 72 | bool add_function(ir_function *f); |
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| 73 | bool add_interface(const char *name, const glsl_type *i, |
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| 74 | enum ir_variable_mode mode); |
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| 75 | /*@}*/ |
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| 76 | |||
| 77 | /** |
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| 78 | * Add an function at global scope without checking for scoping conflicts. |
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| 79 | */ |
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| 80 | void add_global_function(ir_function *f); |
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| 81 | |||
| 82 | /** |
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| 83 | * \name Methods to get symbols from the table |
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| 84 | */ |
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| 85 | /*@{*/ |
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| 86 | ir_variable *get_variable(const char *name); |
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| 87 | const glsl_type *get_type(const char *name); |
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| 88 | ir_function *get_function(const char *name); |
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| 89 | const glsl_type *get_interface(const char *name, |
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| 90 | enum ir_variable_mode mode); |
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| 91 | /*@}*/ |
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| 92 | |||
| 93 | /** |
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| 94 | * Disable a previously-added variable so that it no longer appears to be |
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| 95 | * in the symbol table. This is necessary when gl_PerVertex is redeclared, |
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| 96 | * to ensure that previously-available built-in variables are no longer |
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| 97 | * available. |
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| 98 | */ |
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| 99 | void disable_variable(const char *name); |
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| 100 | |||
| 101 | private: |
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| 102 | symbol_table_entry *get_entry(const char *name); |
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| 103 | |||
| 104 | struct _mesa_symbol_table *table; |
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| 105 | void *mem_ctx; |
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| 106 | }; |
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| 107 | |||
| 108 | #endif /* GLSL_SYMBOL_TABLE */ |