diff options
| -rw-r--r-- | src/mesa/shader/slang/slang_compile_operation.h | 120 |
1 files changed, 66 insertions, 54 deletions
diff --git a/src/mesa/shader/slang/slang_compile_operation.h b/src/mesa/shader/slang/slang_compile_operation.h index d9bce36b9b..f5fee1e50e 100644 --- a/src/mesa/shader/slang/slang_compile_operation.h +++ b/src/mesa/shader/slang/slang_compile_operation.h @@ -1,6 +1,6 @@ /* * Mesa 3-D graphics library - * Version: 6.5 + * Version: 6.5.2 * * Copyright (C) 2005-2006 Brian Paul All Rights Reserved. * @@ -29,85 +29,97 @@ extern "C" { #endif +/** + * Types of slang operations. + * These are the basic intermediate code representations. + * [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, - slang_oper_block_new_scope, - slang_oper_variable_decl, + 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, - slang_oper_continue, - slang_oper_discard, - slang_oper_return, - slang_oper_expression, - slang_oper_if, - slang_oper_while, - slang_oper_do, - slang_oper_for, - slang_oper_void, - slang_oper_literal_bool, - slang_oper_literal_int, - slang_oper_literal_float, - slang_oper_identifier, - slang_oper_sequence, - slang_oper_assign, - slang_oper_addassign, - slang_oper_subassign, - slang_oper_mulassign, - slang_oper_divassign, + slang_oper_break, /* "break" statement */ + slang_oper_continue, /* "continue" statement */ + slang_oper_discard, /* "discard" (kill fragment) statement */ + slang_oper_return, /* "return" [expr] */ + 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, - slang_oper_logicalor, - slang_oper_logicalxor, - slang_oper_logicaland, + 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, - slang_oper_notequal, - slang_oper_less, - slang_oper_greater, - slang_oper_lessequal, - slang_oper_greaterequal, + 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, - slang_oper_subtract, - slang_oper_multiply, - slang_oper_divide, + 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, - slang_oper_predecrement, - slang_oper_plus, - slang_oper_minus, + slang_oper_preincrement, /* "++" [var] */ + slang_oper_predecrement, /* "--" [var] */ + slang_oper_plus, /* "-" [expr] */ + slang_oper_minus, /* "+" [expr] */ /*slang_oper_complement,*/ - slang_oper_not, - slang_oper_subscript, - slang_oper_call, - slang_oper_field, - slang_oper_postincrement, - slang_oper_postdecrement + slang_oper_not, /* "!" [expr] */ + slang_oper_subscript, /* [expr] "[" [expr] "]" */ + slang_oper_call, /* [func name] [param] [param] [...] */ + 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 conditiona, a function call, etc). + */ typedef struct slang_operation_ { slang_operation_type type; struct slang_operation_ *children; unsigned int num_children; - float literal; /* type: bool, literal_int, literal_float */ - slang_atom a_id; /* type: asm, identifier, call, field */ - slang_variable_scope *locals; + float literal; /**< Used for float, int and bool values */ + slang_atom a_id; /**< type: asm, identifier, call, field */ + slang_variable_scope *locals; /**< local vars for scope */ } slang_operation; -int slang_operation_construct (slang_operation *); -void slang_operation_destruct (slang_operation *); -int slang_operation_copy (slang_operation *, const slang_operation *); + +extern int slang_operation_construct (slang_operation *); +extern void slang_operation_destruct (slang_operation *); +extern int slang_operation_copy (slang_operation *, const slang_operation *); + #ifdef __cplusplus } |