| /* |
| * Mesa 3-D graphics library |
| * Version: 6.5.2 |
| * |
| * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #ifndef SLANG_COMPILE_OPERATION_H |
| #define SLANG_COMPILE_OPERATION_H |
| |
| |
| /** |
| * Types of slang operations. |
| * These are the types of the AST (abstract syntax tree) nodes. |
| * [foo] indicates a sub-tree or reference to another type of node |
| */ |
| typedef enum slang_operation_type_ |
| { |
| SLANG_OPER_NONE, |
| SLANG_OPER_BLOCK_NO_NEW_SCOPE, /* "{" sequence "}" */ |
| SLANG_OPER_BLOCK_NEW_SCOPE, /* "{" sequence "}" */ |
| SLANG_OPER_VARIABLE_DECL, /* [type] [var] or [var] = [expr] */ |
| SLANG_OPER_ASM, |
| SLANG_OPER_BREAK, /* "break" statement */ |
| SLANG_OPER_CONTINUE, /* "continue" statement */ |
| SLANG_OPER_DISCARD, /* "discard" (kill fragment) statement */ |
| SLANG_OPER_RETURN, /* "return" [expr] */ |
| SLANG_OPER_LABEL, /* a jump target */ |
| SLANG_OPER_EXPRESSION, /* [expr] */ |
| SLANG_OPER_IF, /* "if" [0] then [1] else [2] */ |
| SLANG_OPER_WHILE, /* "while" [cond] [body] */ |
| SLANG_OPER_DO, /* "do" [body] "while" [cond] */ |
| SLANG_OPER_FOR, /* "for" [init] [while] [incr] [body] */ |
| SLANG_OPER_VOID, /* nop */ |
| SLANG_OPER_LITERAL_BOOL, /* "true" or "false" */ |
| SLANG_OPER_LITERAL_INT, /* integer literal */ |
| SLANG_OPER_LITERAL_FLOAT, /* float literal */ |
| SLANG_OPER_IDENTIFIER, /* var name, func name, etc */ |
| SLANG_OPER_SEQUENCE, /* [expr] "," [expr] "," etc */ |
| SLANG_OPER_ASSIGN, /* [var] "=" [expr] */ |
| SLANG_OPER_ADDASSIGN, /* [var] "+=" [expr] */ |
| SLANG_OPER_SUBASSIGN, /* [var] "-=" [expr] */ |
| SLANG_OPER_MULASSIGN, /* [var] "*=" [expr] */ |
| SLANG_OPER_DIVASSIGN, /* [var] "/=" [expr] */ |
| /*SLANG_OPER_MODASSIGN, */ |
| /*SLANG_OPER_LSHASSIGN, */ |
| /*SLANG_OPER_RSHASSIGN, */ |
| /*SLANG_OPER_ORASSIGN, */ |
| /*SLANG_OPER_XORASSIGN, */ |
| /*SLANG_OPER_ANDASSIGN, */ |
| SLANG_OPER_SELECT, /* [expr] "?" [expr] ":" [expr] */ |
| SLANG_OPER_LOGICALOR, /* [expr] "||" [expr] */ |
| SLANG_OPER_LOGICALXOR, /* [expr] "^^" [expr] */ |
| SLANG_OPER_LOGICALAND, /* [expr] "&&" [expr] */ |
| /*SLANG_OPER_BITOR, */ |
| /*SLANG_OPER_BITXOR, */ |
| /*SLANG_OPER_BITAND, */ |
| SLANG_OPER_EQUAL, /* [expr] "==" [expr] */ |
| SLANG_OPER_NOTEQUAL, /* [expr] "!=" [expr] */ |
| SLANG_OPER_LESS, /* [expr] "<" [expr] */ |
| SLANG_OPER_GREATER, /* [expr] ">" [expr] */ |
| SLANG_OPER_LESSEQUAL, /* [expr] "<=" [expr] */ |
| SLANG_OPER_GREATEREQUAL, /* [expr] ">=" [expr] */ |
| /*SLANG_OPER_LSHIFT, */ |
| /*SLANG_OPER_RSHIFT, */ |
| SLANG_OPER_ADD, /* [expr] "+" [expr] */ |
| SLANG_OPER_SUBTRACT, /* [expr] "-" [expr] */ |
| SLANG_OPER_MULTIPLY, /* [expr] "*" [expr] */ |
| SLANG_OPER_DIVIDE, /* [expr] "/" [expr] */ |
| /*SLANG_OPER_MODULUS, */ |
| SLANG_OPER_PREINCREMENT, /* "++" [var] */ |
| SLANG_OPER_PREDECREMENT, /* "--" [var] */ |
| SLANG_OPER_PLUS, /* "-" [expr] */ |
| SLANG_OPER_MINUS, /* "+" [expr] */ |
| /*SLANG_OPER_COMPLEMENT, */ |
| SLANG_OPER_NOT, /* "!" [expr] */ |
| SLANG_OPER_SUBSCRIPT, /* [expr] "[" [expr] "]" */ |
| SLANG_OPER_CALL, /* [func name] [param] [param] [...] */ |
| SLANG_OPER_NON_INLINED_CALL, /* a real function call */ |
| SLANG_OPER_FIELD, /* i.e.: ".next" or ".xzy" or ".xxx" etc */ |
| SLANG_OPER_POSTINCREMENT, /* [var] "++" */ |
| SLANG_OPER_POSTDECREMENT /* [var] "--" */ |
| } slang_operation_type; |
| |
| |
| /** |
| * A slang_operation is basically a compiled instruction (such as assignment, |
| * a while-loop, a conditional, a multiply, a function call, etc). |
| * The AST (abstract syntax tree) is built from these nodes. |
| * NOTE: This structure could have been implemented as a union of simpler |
| * structs which would correspond to the operation types above. |
| */ |
| typedef struct slang_operation_ |
| { |
| slang_operation_type type; |
| struct slang_operation_ *children; |
| GLuint num_children; |
| GLfloat literal[4]; /**< Used for float, int and bool values */ |
| GLuint literal_size; /**< 1, 2, 3, or 4 */ |
| slang_atom a_id; /**< type: asm, identifier, call, field */ |
| slang_variable_scope *locals; /**< local vars for scope */ |
| struct slang_function_ *fun; /**< If type == SLANG_OPER_CALL */ |
| struct slang_variable_ *var; /**< If type == slang_oper_identier */ |
| struct slang_label_ *label; /**< If type == SLANG_OPER_LABEL */ |
| } slang_operation; |
| |
| |
| extern GLboolean |
| slang_operation_construct(slang_operation *); |
| |
| extern void |
| slang_operation_destruct(slang_operation *); |
| |
| extern void |
| slang_replace_scope(slang_operation *oper, |
| slang_variable_scope *oldScope, |
| slang_variable_scope *newScope); |
| |
| extern GLboolean |
| slang_operation_copy(slang_operation *, const slang_operation *); |
| |
| extern slang_operation * |
| slang_operation_new(GLuint count); |
| |
| extern void |
| slang_operation_delete(slang_operation *oper); |
| |
| extern slang_operation * |
| slang_operation_grow(GLuint *numChildren, slang_operation **children); |
| |
| extern slang_operation * |
| slang_operation_insert(GLuint *numChildren, slang_operation **children, |
| GLuint pos); |
| |
| extern void |
| _slang_operation_swap(slang_operation *oper0, slang_operation *oper1); |
| |
| |
| #endif /* SLANG_COMPILE_OPERATION_H */ |
