svn merge ^/branches/released . --username marha

1 files changed, 174 insertions, 0 deletions

diff --git a/mesalib/src/mesa/shader/slang/slang_compile_struct.c b/mesalib/src/mesa/shader/slang/slang_compile_struct.c
new file mode 100644
index 000000000..e6c38730d
--- /dev/null
+++ b/mesalib/src/mesa/shader/slang/slang_compile_struct.c
@@ -0,0 +1,174 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  6.5.3
+ *
+ * Copyright (C) 2005-2007  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.
+ */
+
+/**
+ * \file slang_compile_struct.c
+ * slang front-end compiler
+ * \author Michal Krol
+ */
+
+#include "main/imports.h"
+#include "slang_mem.h"
+#include "slang_compile.h"
+
+
+GLvoid
+_slang_struct_scope_ctr(slang_struct_scope * self)
+{
+   self->structs = NULL;
+   self->num_structs = 0;
+   self->outer_scope = NULL;
+}
+
+void
+slang_struct_scope_destruct(slang_struct_scope * scope)
+{
+   GLuint i;
+
+   for (i = 0; i < scope->num_structs; i++)
+      slang_struct_destruct(scope->structs + i);
+   _slang_free(scope->structs);
+   /* do not free scope->outer_scope */
+}
+
+int
+slang_struct_scope_copy(slang_struct_scope * x, const slang_struct_scope * y)
+{
+   slang_struct_scope z;
+   GLuint i;
+
+   _slang_struct_scope_ctr(&z);
+   z.structs = (slang_struct *)
+      _slang_alloc(y->num_structs * sizeof(slang_struct));
+   if (z.structs == NULL) {
+      slang_struct_scope_destruct(&z);
+      return 0;
+   }
+   for (z.num_structs = 0; z.num_structs < y->num_structs; z.num_structs++)
+      if (!slang_struct_construct(&z.structs[z.num_structs])) {
+         slang_struct_scope_destruct(&z);
+         return 0;
+      }
+   for (i = 0; i < z.num_structs; i++)
+      if (!slang_struct_copy(&z.structs[i], &y->structs[i])) {
+         slang_struct_scope_destruct(&z);
+         return 0;
+      }
+   z.outer_scope = y->outer_scope;
+   slang_struct_scope_destruct(x);
+   *x = z;
+   return 1;
+}
+
+slang_struct *
+slang_struct_scope_find(slang_struct_scope * stru, slang_atom a_name,
+                        int all_scopes)
+{
+   GLuint i;
+
+   for (i = 0; i < stru->num_structs; i++)
+      if (a_name == stru->structs[i].a_name)
+         return &stru->structs[i];
+   if (all_scopes && stru->outer_scope != NULL)
+      return slang_struct_scope_find(stru->outer_scope, a_name, 1);
+   return NULL;
+}
+
+/* slang_struct */
+
+int
+slang_struct_construct(slang_struct * stru)
+{
+   stru->a_name = SLANG_ATOM_NULL;
+   stru->fields = (slang_variable_scope *)
+      _slang_alloc(sizeof(slang_variable_scope));
+   if (stru->fields == NULL)
+      return 0;
+   _slang_variable_scope_ctr(stru->fields);
+
+   stru->structs =
+      (slang_struct_scope *) _slang_alloc(sizeof(slang_struct_scope));
+   if (stru->structs == NULL) {
+      slang_variable_scope_destruct(stru->fields);
+      _slang_free(stru->fields);
+      return 0;
+   }
+   _slang_struct_scope_ctr(stru->structs);
+   stru->constructor = NULL;
+   return 1;
+}
+
+void
+slang_struct_destruct(slang_struct * stru)
+{
+   slang_variable_scope_destruct(stru->fields);
+   _slang_free(stru->fields);
+   slang_struct_scope_destruct(stru->structs);
+   _slang_free(stru->structs);
+}
+
+int
+slang_struct_copy(slang_struct * x, const slang_struct * y)
+{
+   slang_struct z;
+
+   if (!slang_struct_construct(&z))
+      return 0;
+   z.a_name = y->a_name;
+   if (!slang_variable_scope_copy(z.fields, y->fields)) {
+      slang_struct_destruct(&z);
+      return 0;
+   }
+   if (!slang_struct_scope_copy(z.structs, y->structs)) {
+      slang_struct_destruct(&z);
+      return 0;
+   }
+   slang_struct_destruct(x);
+   *x = z;
+   return 1;
+}
+
+int
+slang_struct_equal(const slang_struct * x, const slang_struct * y)
+{
+   GLuint i;
+
+   if (x->fields->num_variables != y->fields->num_variables)
+      return 0;
+
+   for (i = 0; i < x->fields->num_variables; i++) {
+      const slang_variable *varx = x->fields->variables[i];
+      const slang_variable *vary = y->fields->variables[i];
+
+      if (varx->a_name != vary->a_name)
+         return 0;
+      if (!slang_type_specifier_equal(&varx->type.specifier,
+                                      &vary->type.specifier))
+         return 0;
+      if (varx->type.specifier.type == SLANG_SPEC_ARRAY)
+         if (varx->array_len != vary->array_len)
+            return GL_FALSE;
+   }
+   return 1;
+}