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| author | Tavian Barnes <tavianator@gmail.com> | 2010-06-17 09:16:20 -0600 |
|---|---|---|
| committer | Tavian Barnes <tavianator@gmail.com> | 2010-06-17 09:16:20 -0600 |
| commit | c8667ce6ae94929e9bc06c9af51b6589bc528946 (patch) | |
| tree | b325c25f6192f51159e24ace80f2e9e5ce00b99f /dimension/common.rules | |
| parent | 91cc57a4a12997a72c2ec643f3560ad998daa87b (diff) | |
| download | dimension-c8667ce6ae94929e9bc06c9af51b6589bc528946.tar.xz | |
Fully implement POV-Ray transformations.
Diffstat (limited to 'dimension/common.rules')
| -rw-r--r-- | dimension/common.rules | 108 |
1 files changed, 105 insertions, 3 deletions
diff --git a/dimension/common.rules b/dimension/common.rules index d897eb3..77830a6 100644 --- a/dimension/common.rules +++ b/dimension/common.rules @@ -43,14 +43,116 @@ STRING: "string" { /* Transformations */ TRANSFORMATION: "rotate" VECTOR { - $$ = dmnsn_new_astnode1(DMNSN_AST_ROTATION, @$, $2); + dmnsn_astnode rotation + = dmnsn_new_astnode1(DMNSN_AST_ROTATION, @$, $2); + $$ = dmnsn_new_astnode1(DMNSN_AST_TRANSFORMATION, @$, rotation); } | "scale" VECTOR { - $$ = dmnsn_new_astnode1(DMNSN_AST_SCALE, @$, $2); + dmnsn_astnode scale + = dmnsn_new_astnode1(DMNSN_AST_SCALE, @$, $2); + $$ = dmnsn_new_astnode1(DMNSN_AST_TRANSFORMATION, @$, scale); } | "translate" VECTOR { - $$ = dmnsn_new_astnode1(DMNSN_AST_TRANSLATION, @$, $2); + dmnsn_astnode translation + = dmnsn_new_astnode1(DMNSN_AST_TRANSLATION, @$, $2); + $$ = dmnsn_new_astnode1(DMNSN_AST_TRANSFORMATION, @$, + translation); } + | "matrix" "<" FLOAT "," FLOAT "," FLOAT "," + FLOAT "," FLOAT "," FLOAT "," + FLOAT "," FLOAT "," FLOAT "," + FLOAT "," FLOAT "," FLOAT ">" + { + dmnsn_astnode matrix = dmnsn_new_astnode(DMNSN_AST_MATRIX, @$); + + dmnsn_array_push(matrix.children, &$3); + dmnsn_array_push(matrix.children, &$5); + dmnsn_array_push(matrix.children, &$7); + + dmnsn_array_push(matrix.children, &$9); + dmnsn_array_push(matrix.children, &$11); + dmnsn_array_push(matrix.children, &$13); + + dmnsn_array_push(matrix.children, &$15); + dmnsn_array_push(matrix.children, &$17); + dmnsn_array_push(matrix.children, &$19); + + dmnsn_array_push(matrix.children, &$21); + dmnsn_array_push(matrix.children, &$23); + dmnsn_array_push(matrix.children, &$25); + + $$ = dmnsn_new_astnode1(DMNSN_AST_TRANSFORMATION, @$, matrix); + } + | "transform" IDENTIFIER { + dmnsn_astnode *trans = dmnsn_find_symbol(symtable, $2.ptr); + if (!trans) { + dmnsn_diagnostic(@2, "unbound identifier '%s'", + (const char *)$2.ptr); + dmnsn_delete_astnode($2); + YYERROR; + } + if (trans->type != DMNSN_AST_TRANSFORMATION) { + dmnsn_diagnostic( + @2, "identifier '%s' is a %s; expected a %s", + (const char *)$2.ptr, + dmnsn_astnode_string(trans->type), + dmnsn_astnode_string(DMNSN_AST_TRANSFORMATION) + ); + dmnsn_delete_astnode($2); + YYERROR; + } + + $$ = dmnsn_new_astnode(DMNSN_AST_TRANSFORMATION, @$); + dmnsn_copy_children($$, *trans); + dmnsn_delete_astnode($2); + } + | "transform" "{" + TRANSFORMATION_ITEMS + "}" + { + $$ = $3; + } +; + +TRANSFORMATION_ITEMS: TRANSFORMATION_ITEM { + $$ = dmnsn_new_astnode1(DMNSN_AST_TRANSFORMATION, @$, $1); + } + | TRANSFORMATION_ITEMS TRANSFORMATION_ITEM { + $$ = $1; + dmnsn_array_push($$.children, &$2); + } +; + +TRANSFORMATION_ITEM: IDENTIFIER { + dmnsn_astnode *trans = dmnsn_find_symbol(symtable, $1.ptr); + if (!trans) { + dmnsn_diagnostic(@1, "unbound identifier '%s'", + (const char *)$1.ptr); + dmnsn_delete_astnode($1); + YYERROR; + } + if (trans->type != DMNSN_AST_TRANSFORMATION) { + dmnsn_diagnostic( + @1, "identifier '%s' is a %s; expected a %s", + (const char *)$1.ptr, + dmnsn_astnode_string(trans->type), + dmnsn_astnode_string(DMNSN_AST_TRANSFORMATION) + ); + dmnsn_delete_astnode($1); + YYERROR; + } + + dmnsn_array_get(trans->children, 0, &$$); + ++*$$.refcount; + } + | TRANSFORMATION { + dmnsn_array_get($1.children, 0, &$$); + ++*$$.refcount; + dmnsn_delete_astnode($1); + } + | "inverse" { + $$ = dmnsn_new_astnode(DMNSN_AST_INVERSE, @$); + } ; /* Cameras */ |