Added MesaLib-7.6

1 files changed, 247 insertions, 0 deletions

diff --git a/mesalib/src/mesa/shader/slang/slang_compile_variable.c b/mesalib/src/mesa/shader/slang/slang_compile_variable.c
new file mode 100644
index 000000000..eab912710
--- /dev/null
+++ b/mesalib/src/mesa/shader/slang/slang_compile_variable.c
@@ -0,0 +1,247 @@
+/*
+ * 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_variable.c
+ * slang front-end compiler
+ * \author Michal Krol
+ */
+
+#include "main/imports.h"
+#include "slang_compile.h"
+#include "slang_mem.h"
+
+
+static slang_variable *
+slang_variable_new(void)
+{
+   slang_variable *v = (slang_variable *) _slang_alloc(sizeof(slang_variable));
+   if (v) {
+      if (!slang_variable_construct(v)) {
+         _slang_free(v);
+         v = NULL;
+      }
+   }
+   return v;
+}
+
+
+static void
+slang_variable_delete(slang_variable * var)
+{
+   slang_variable_destruct(var);
+   _slang_free(var);
+}
+
+
+/*
+ * slang_variable_scope
+ */
+
+slang_variable_scope *
+_slang_variable_scope_new(slang_variable_scope *parent)
+{
+   slang_variable_scope *s;
+   s = (slang_variable_scope *) _slang_alloc(sizeof(slang_variable_scope));
+   if (s)
+      s->outer_scope = parent;
+   return s;
+}
+
+
+GLvoid
+_slang_variable_scope_ctr(slang_variable_scope * self)
+{
+   self->variables = NULL;
+   self->num_variables = 0;
+   self->outer_scope = NULL;
+}
+
+void
+slang_variable_scope_destruct(slang_variable_scope * scope)
+{
+   unsigned int i;
+
+   if (!scope)
+      return;
+   for (i = 0; i < scope->num_variables; i++) {
+      if (scope->variables[i])
+         slang_variable_delete(scope->variables[i]);
+   }
+   _slang_free(scope->variables);
+   /* do not free scope->outer_scope */
+}
+
+int
+slang_variable_scope_copy(slang_variable_scope * x,
+                          const slang_variable_scope * y)
+{
+   slang_variable_scope z;
+   unsigned int i;
+
+   _slang_variable_scope_ctr(&z);
+   z.variables = (slang_variable **)
+      _slang_alloc(y->num_variables * sizeof(slang_variable *));
+   if (z.variables == NULL) {
+      slang_variable_scope_destruct(&z);
+      return 0;
+   }
+   for (z.num_variables = 0; z.num_variables < y->num_variables;
+        z.num_variables++) {
+      z.variables[z.num_variables] = slang_variable_new();
+      if (!z.variables[z.num_variables]) {
+         slang_variable_scope_destruct(&z);
+         return 0;
+      }
+   }
+   for (i = 0; i < z.num_variables; i++) {
+      if (!slang_variable_copy(z.variables[i], y->variables[i])) {
+         slang_variable_scope_destruct(&z);
+         return 0;
+      }
+   }
+   z.outer_scope = y->outer_scope;
+   slang_variable_scope_destruct(x);
+   *x = z;
+   return 1;
+}
+
+
+/**
+ * Grow the variable list by one.
+ * \return  pointer to space for the new variable (will be initialized)
+ */
+slang_variable *
+slang_variable_scope_grow(slang_variable_scope *scope)
+{
+   const int n = scope->num_variables;
+   scope->variables = (slang_variable **)
+         _slang_realloc(scope->variables,
+                        n * sizeof(slang_variable *),
+                        (n + 1) * sizeof(slang_variable *));
+   if (!scope->variables)
+      return NULL;
+
+   scope->num_variables++;
+
+   scope->variables[n] = slang_variable_new();
+   if (!scope->variables[n])
+      return NULL;
+
+   return scope->variables[n];
+}
+
+
+
+/* slang_variable */
+
+int
+slang_variable_construct(slang_variable * var)
+{
+   if (!slang_fully_specified_type_construct(&var->type))
+      return 0;
+   var->a_name = SLANG_ATOM_NULL;
+   var->array_len = 0;
+   var->initializer = NULL;
+   var->size = 0;
+   var->isTemp = GL_FALSE;
+   var->store = NULL;
+   var->declared = 0;
+   return 1;
+}
+
+
+void
+slang_variable_destruct(slang_variable * var)
+{
+   slang_fully_specified_type_destruct(&var->type);
+   if (var->initializer != NULL) {
+      slang_operation_destruct(var->initializer);
+      _slang_free(var->initializer);
+   }
+#if 0
+   if (var->aux) {
+      _mesa_free(var->aux);
+   }
+#endif
+}
+
+
+int
+slang_variable_copy(slang_variable * x, const slang_variable * y)
+{
+   slang_variable z;
+
+   if (!slang_variable_construct(&z))
+      return 0;
+   if (!slang_fully_specified_type_copy(&z.type, &y->type)) {
+      slang_variable_destruct(&z);
+      return 0;
+   }
+   z.a_name = y->a_name;
+   z.array_len = y->array_len;
+   if (y->initializer != NULL) {
+      z.initializer
+         = (slang_operation *) _slang_alloc(sizeof(slang_operation));
+      if (z.initializer == NULL) {
+         slang_variable_destruct(&z);
+         return 0;
+      }
+      if (!slang_operation_construct(z.initializer)) {
+         _slang_free(z.initializer);
+         slang_variable_destruct(&z);
+         return 0;
+      }
+      if (!slang_operation_copy(z.initializer, y->initializer)) {
+         slang_variable_destruct(&z);
+         return 0;
+      }
+   }
+   z.size = y->size;
+   slang_variable_destruct(x);
+   *x = z;
+   return 1;
+}
+
+
+/**
+ * Search for named variable in given scope.
+ * \param all  if true, search parent scopes too.
+ */
+slang_variable *
+_slang_variable_locate(const slang_variable_scope * scope,
+                       const slang_atom a_name, GLboolean all)
+{
+   while (scope) {
+      GLuint i;
+      for (i = 0; i < scope->num_variables; i++)
+         if (a_name == scope->variables[i]->a_name)
+            return scope->variables[i];
+      if (all)
+         scope = scope->outer_scope;
+      else
+         scope = NULL;
+   }
+   return NULL;
+}