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Diffstat (limited to 'src/mesa/slang/slang_compile_operation.h')
| -rw-r--r-- | src/mesa/slang/slang_compile_operation.h | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/src/mesa/slang/slang_compile_operation.h b/src/mesa/slang/slang_compile_operation.h new file mode 100644 index 00000000000..1f15c198963 --- /dev/null +++ b/src/mesa/slang/slang_compile_operation.h @@ -0,0 +1,225 @@ +/* + * 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_RETURN_INLINED, /* "return" [expr] from inlined function */ + 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_METHOD, /* method call, such as v.length() */ + 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_atom a_obj; /**< object in a method call */ + 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 */ + /** If type==SLANG_OPER_CALL and we're calling an array constructor, + * for which there's no real function, we need to have a flag to + * indicate such. num_children indicates number of elements. + */ + GLboolean array_constructor; +} 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 void +slang_operation_free_children(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 slang_operation * +slang_operation_insert_child(slang_operation *oper, GLuint pos); + +extern void +_slang_operation_swap(slang_operation *oper0, slang_operation *oper1); + + +extern void +slang_operation_add_children(slang_operation *oper, GLuint num_children); + + +/** Return number of children of given node */ +static INLINE GLuint +slang_oper_num_children(const slang_operation *oper) +{ + return oper->num_children; +} + +/** Return child of given operation node */ +static INLINE slang_operation * +slang_oper_child(slang_operation *oper, GLuint child) +{ + assert(child < oper->num_children); + return &oper->children[child]; +} + + +/** Return child of given operation node, const version */ +static INLINE const slang_operation * +slang_oper_child_const(const slang_operation *oper, GLuint child) +{ + assert(child < oper->num_children); + return &oper->children[child]; +} + + +/** Init oper to a boolean literal. */ +static INLINE void +slang_operation_literal_bool(slang_operation *oper, GLboolean value) +{ + oper->type = SLANG_OPER_LITERAL_BOOL; + oper->literal[0] = + oper->literal[1] = + oper->literal[2] = + oper->literal[3] = (float) value; + oper->literal_size = 1; +} + + +/** Init oper to an int literal. */ +static INLINE void +slang_operation_literal_int(slang_operation *oper, GLint value) +{ + oper->type = SLANG_OPER_LITERAL_INT; + oper->literal[0] = + oper->literal[1] = + oper->literal[2] = + oper->literal[3] = (float) value; + oper->literal_size = 1; +} + + +#endif /* SLANG_COMPILE_OPERATION_H */ |