class symbol_table_entry {
public:
- /* Callers of this talloc-based new need not call delete. It's
- * easier to just talloc_free 'ctx' (or any of its ancestors). */
- static void* operator new(size_t size, void *ctx)
+ DECLARE_RALLOC_CXX_OPERATORS(symbol_table_entry);
+
+ bool add_interface(const glsl_type *i, enum ir_variable_mode mode)
{
- void *entry = talloc_size(ctx, size);
- assert(entry != NULL);
- return entry;
+ const glsl_type **dest;
+
+ switch (mode) {
+ case ir_var_uniform:
+ dest = &ibu;
+ break;
+ case ir_var_shader_in:
+ dest = &ibi;
+ break;
+ case ir_var_shader_out:
+ dest = &ibo;
+ break;
+ default:
+ assert(!"Unsupported interface variable mode!");
+ return false;
+ }
+
+ if (*dest != NULL) {
+ return false;
+ } else {
+ *dest = i;
+ return true;
+ }
}
- /* If the user *does* call delete, that's OK, we will just
- * talloc_free in that case. Here, C++ will have already called the
- * destructor so tell talloc not to do that again. */
- static void operator delete(void *table)
+ const glsl_type *get_interface(enum ir_variable_mode mode)
{
- talloc_set_destructor(table, NULL);
- talloc_free(table);
+ switch (mode) {
+ case ir_var_uniform:
+ return ibu;
+ case ir_var_shader_in:
+ return ibi;
+ case ir_var_shader_out:
+ return ibo;
+ default:
+ assert(!"Unsupported interface variable mode!");
+ return NULL;
+ }
}
- symbol_table_entry(ir_variable *v) : v(v), f(0), t(0) {}
- symbol_table_entry(ir_function *f) : v(0), f(f), t(0) {}
- symbol_table_entry(const glsl_type *t) : v(0), f(0), t(t) {}
+ symbol_table_entry(ir_variable *v) :
+ v(v), f(0), t(0), ibu(0), ibi(0), ibo(0), a(0) {}
+ symbol_table_entry(ir_function *f) :
+ v(0), f(f), t(0), ibu(0), ibi(0), ibo(0), a(0) {}
+ symbol_table_entry(const glsl_type *t) :
+ v(0), f(0), t(t), ibu(0), ibi(0), ibo(0), a(0) {}
+ symbol_table_entry(const glsl_type *t, enum ir_variable_mode mode) :
+ v(0), f(0), t(0), ibu(0), ibi(0), ibo(0), a(0)
+ {
+ assert(t->is_interface());
+ add_interface(t, mode);
+ }
+ symbol_table_entry(const class ast_type_specifier *a):
+ v(0), f(0), t(0), ibu(0), ibi(0), ibo(0), a(a) {}
ir_variable *v;
ir_function *f;
const glsl_type *t;
+ const glsl_type *ibu;
+ const glsl_type *ibi;
+ const glsl_type *ibo;
+ const class ast_type_specifier *a;
};
glsl_symbol_table::glsl_symbol_table()
{
- this->language_version = 120;
+ this->separate_function_namespace = false;
this->table = _mesa_symbol_table_ctor();
- this->mem_ctx = talloc_init("symbol table entries");
+ this->mem_ctx = ralloc_context(NULL);
}
glsl_symbol_table::~glsl_symbol_table()
{
_mesa_symbol_table_dtor(table);
- talloc_free(mem_ctx);
+ ralloc_free(mem_ctx);
}
void glsl_symbol_table::push_scope()
bool glsl_symbol_table::add_variable(ir_variable *v)
{
- if (this->language_version == 110) {
+ if (this->separate_function_namespace) {
/* In 1.10, functions and variables have separate namespaces. */
symbol_table_entry *existing = get_entry(v->name);
if (name_declared_this_scope(v->name)) {
return _mesa_symbol_table_add_symbol(table, -1, name, entry) == 0;
}
+static char *make_ast_name(const char *name)
+{
+ char *ast_name = new char[strlen("#ast.") + strlen(name) + 1];
+ strcpy(ast_name, "#ast.");
+ strcat(ast_name + strlen("#ast."), name);
+ return ast_name;
+}
+
+bool glsl_symbol_table::add_type_ast(const char *name, const class ast_type_specifier *a)
+{
+ symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(a);
+ char *ast_name = make_ast_name(name);
+ bool ret = _mesa_symbol_table_add_symbol(table, -1, ast_name, entry) == 0;
+ delete [] ast_name;
+ return ret;
+}
+
+bool glsl_symbol_table::add_interface(const char *name, const glsl_type *i,
+ enum ir_variable_mode mode)
+{
+ assert(i->is_interface());
+ symbol_table_entry *entry = get_entry(name);
+ if (entry == NULL) {
+ symbol_table_entry *entry =
+ new(mem_ctx) symbol_table_entry(i, mode);
+ bool add_interface_symbol_result =
+ _mesa_symbol_table_add_symbol(table, -1, name, entry) == 0;
+ assert(add_interface_symbol_result);
+ return add_interface_symbol_result;
+ } else {
+ return entry->add_interface(i, mode);
+ }
+}
+
bool glsl_symbol_table::add_function(ir_function *f)
{
- if (this->language_version == 110 && name_declared_this_scope(f->name)) {
+ if (this->separate_function_namespace && name_declared_this_scope(f->name)) {
/* In 1.10, functions and variables have separate namespaces. */
symbol_table_entry *existing = get_entry(f->name);
if ((existing->f == NULL) && (existing->t == NULL)) {
symbol_table_entry *entry = new(mem_ctx) symbol_table_entry(f);
int added = _mesa_symbol_table_add_global_symbol(table, -1, f->name, entry);
assert(added == 0);
+ (void)added;
}
ir_variable *glsl_symbol_table::get_variable(const char *name)
return entry != NULL ? entry->t : NULL;
}
+const class ast_type_specifier *glsl_symbol_table::get_type_ast(const char *name)
+{
+ char *ast_name = make_ast_name(name);
+ symbol_table_entry *entry = get_entry(ast_name);
+ delete [] ast_name;
+ return entry != NULL ? entry->a : NULL;
+}
+
+const glsl_type *glsl_symbol_table::get_interface(const char *name,
+ enum ir_variable_mode mode)
+{
+ symbol_table_entry *entry = get_entry(name);
+ return entry != NULL ? entry->get_interface(mode) : NULL;
+}
+
ir_function *glsl_symbol_table::get_function(const char *name)
{
symbol_table_entry *entry = get_entry(name);
return (symbol_table_entry *)
_mesa_symbol_table_find_symbol(table, -1, name);
}
+
+void
+glsl_symbol_table::disable_variable(const char *name)
+{
+ /* Ideally we would remove the variable's entry from the symbol table, but
+ * that would be difficult. Fortunately, since this is only used for
+ * built-in variables, it won't be possible for the shader to re-introduce
+ * the variable later, so all we really need to do is to make sure that
+ * further attempts to access it using get_variable() will return NULL.
+ */
+ symbol_table_entry *entry = get_entry(name);
+ if (entry != NULL) {
+ entry->v = NULL;
+ }
+}
projects / mesa.git / blobdiff