/*
* Mesa 3-D graphics library
- * Version: 6.5
+ * Version: 6.5.2
*
* Copyright (C) 2005-2006 Brian Paul All Rights Reserved.
*
* \author Michal Krol
*/
-#include "imports.h"
+#include "main/imports.h"
#include "slang_compile.h"
+#include "slang_mem.h"
-/* slang_operation */
-int slang_operation_construct (slang_operation *oper)
+/**
+ * Init a slang_operation object
+ */
+GLboolean
+slang_operation_construct(slang_operation * oper)
+{
+ oper->type = SLANG_OPER_NONE;
+ oper->children = NULL;
+ oper->num_children = 0;
+ oper->literal[0] = 0.0;
+ oper->literal_size = 1;
+ oper->a_id = SLANG_ATOM_NULL;
+ oper->locals = _slang_variable_scope_new(NULL);
+ if (oper->locals == NULL)
+ return GL_FALSE;
+ _slang_variable_scope_ctr(oper->locals);
+ oper->fun = NULL;
+ oper->var = NULL;
+ return GL_TRUE;
+}
+
+void
+slang_operation_destruct(slang_operation * oper)
+{
+ GLuint i;
+
+ for (i = 0; i < oper->num_children; i++)
+ slang_operation_destruct(oper->children + i);
+ _slang_free(oper->children);
+ slang_variable_scope_destruct(oper->locals);
+ _slang_free(oper->locals);
+ oper->children = NULL;
+ oper->num_children = 0;
+ oper->locals = NULL;
+}
+
+
+/**
+ * Recursively traverse 'oper', replacing occurances of 'oldScope' with
+ * 'newScope' in the oper->locals->outer_scope field.
+ */
+void
+slang_replace_scope(slang_operation *oper,
+ slang_variable_scope *oldScope,
+ slang_variable_scope *newScope)
+{
+ GLuint i;
+ if (oper->locals != newScope &&
+ oper->locals->outer_scope == oldScope) {
+ oper->locals->outer_scope = newScope;
+ }
+ for (i = 0; i < oper->num_children; i++) {
+ slang_replace_scope(&oper->children[i], oldScope, newScope);
+ }
+}
+
+
+/**
+ * Recursively copy a slang_operation node.
+ * \param x copy target
+ * \param y copy source
+ * \return GL_TRUE for success, GL_FALSE if failure
+ */
+GLboolean
+slang_operation_copy(slang_operation * x, const slang_operation * y)
+{
+ slang_operation z;
+ GLuint i;
+
+ if (!slang_operation_construct(&z))
+ return GL_FALSE;
+ z.type = y->type;
+ z.children = (slang_operation *)
+ _slang_alloc(y->num_children * sizeof(slang_operation));
+ if (z.children == NULL) {
+ slang_operation_destruct(&z);
+ return GL_FALSE;
+ }
+ for (z.num_children = 0; z.num_children < y->num_children;
+ z.num_children++) {
+ if (!slang_operation_construct(&z.children[z.num_children])) {
+ slang_operation_destruct(&z);
+ return GL_FALSE;
+ }
+ }
+ for (i = 0; i < z.num_children; i++) {
+ if (!slang_operation_copy(&z.children[i], &y->children[i])) {
+ slang_operation_destruct(&z);
+ return GL_FALSE;
+ }
+ }
+ z.literal[0] = y->literal[0];
+ z.literal[1] = y->literal[1];
+ z.literal[2] = y->literal[2];
+ z.literal[3] = y->literal[3];
+ z.literal_size = y->literal_size;
+ assert(y->literal_size >= 1);
+ assert(y->literal_size <= 4);
+ z.a_id = y->a_id;
+ if (y->locals) {
+ if (!slang_variable_scope_copy(z.locals, y->locals)) {
+ slang_operation_destruct(&z);
+ return GL_FALSE;
+ }
+ }
+#if 0
+ z.var = y->var;
+ z.fun = y->fun;
+#endif
+ slang_operation_destruct(x);
+ *x = z;
+
+ /* If this operation declares a new scope, we need to make sure
+ * all children point to it, not the original operation's scope!
+ */
+ if (x->type == SLANG_OPER_BLOCK_NEW_SCOPE) {
+ slang_replace_scope(x, y->locals, x->locals);
+ }
+
+ return GL_TRUE;
+}
+
+
+slang_operation *
+slang_operation_new(GLuint count)
{
- oper->type = slang_oper_none;
- oper->children = NULL;
- oper->num_children = 0;
- oper->literal = (float) 0;
- oper->a_id = SLANG_ATOM_NULL;
- oper->locals = (slang_variable_scope *) slang_alloc_malloc (sizeof (slang_variable_scope));
- if (oper->locals == NULL)
- return 0;
- _slang_variable_scope_ctr (oper->locals);
- return 1;
+ slang_operation *ops
+ = (slang_operation *) _slang_alloc(count * sizeof(slang_operation));
+ assert(count > 0);
+ if (ops) {
+ GLuint i;
+ for (i = 0; i < count; i++)
+ slang_operation_construct(ops + i);
+ }
+ return ops;
}
-void slang_operation_destruct (slang_operation *oper)
+
+/**
+ * Delete operation and all children
+ */
+void
+slang_operation_delete(slang_operation *oper)
+{
+ slang_operation_destruct(oper);
+ _slang_free(oper);
+}
+
+
+slang_operation *
+slang_operation_grow(GLuint *numChildren, slang_operation **children)
{
- unsigned int i;
+ slang_operation *ops;
- for (i = 0; i < oper->num_children; i++)
- slang_operation_destruct (oper->children + i);
- slang_alloc_free (oper->children);
- slang_variable_scope_destruct (oper->locals);
- slang_alloc_free (oper->locals);
+ ops = (slang_operation *)
+ _slang_realloc(*children,
+ *numChildren * sizeof(slang_operation),
+ (*numChildren + 1) * sizeof(slang_operation));
+ if (ops) {
+ slang_operation *newOp = ops + *numChildren;
+ if (!slang_operation_construct(newOp)) {
+ _slang_free(ops);
+ *children = NULL;
+ return NULL;
+ }
+ *children = ops;
+ (*numChildren)++;
+ return newOp;
+ }
+ return NULL;
}
-int slang_operation_copy (slang_operation *x, const slang_operation *y)
+/**
+ * Insert a new slang_operation into an array.
+ * \param numElements pointer to current array size (in/out)
+ * \param array address of the array (in/out)
+ * \param pos position to insert new element
+ * \return pointer to the new operation/element
+ */
+slang_operation *
+slang_operation_insert(GLuint *numElements, slang_operation **array,
+ GLuint pos)
+{
+ slang_operation *ops;
+
+ assert(pos <= *numElements);
+
+ ops = (slang_operation *)
+ _slang_alloc((*numElements + 1) * sizeof(slang_operation));
+ if (ops) {
+ slang_operation *newOp;
+ newOp = ops + pos;
+ if (pos > 0)
+ _mesa_memcpy(ops, *array, pos * sizeof(slang_operation));
+ if (pos < *numElements)
+ _mesa_memcpy(newOp + 1, (*array) + pos,
+ (*numElements - pos) * sizeof(slang_operation));
+
+ if (!slang_operation_construct(newOp)) {
+ _slang_free(ops);
+ *numElements = 0;
+ *array = NULL;
+ return NULL;
+ }
+ if (*array)
+ _slang_free(*array);
+ *array = ops;
+ (*numElements)++;
+ return newOp;
+ }
+ return NULL;
+}
+
+
+void
+_slang_operation_swap(slang_operation *oper0, slang_operation *oper1)
{
- slang_operation z;
- unsigned int i;
-
- if (!slang_operation_construct (&z))
- return 0;
- z.type = y->type;
- z.children = (slang_operation *) slang_alloc_malloc (y->num_children * sizeof (slang_operation));
- if (z.children == NULL)
- {
- slang_operation_destruct (&z);
- return 0;
- }
- for (z.num_children = 0; z.num_children < y->num_children; z.num_children++)
- if (!slang_operation_construct (&z.children[z.num_children]))
- {
- slang_operation_destruct (&z);
- return 0;
- }
- for (i = 0; i < z.num_children; i++)
- if (!slang_operation_copy (&z.children[i], &y->children[i]))
- {
- slang_operation_destruct (&z);
- return 0;
- }
- z.literal = y->literal;
- z.a_id = y->a_id;
- if (!slang_variable_scope_copy (z.locals, y->locals))
- {
- slang_operation_destruct (&z);
- return 0;
- }
- slang_operation_destruct (x);
- *x = z;
- return 1;
+ slang_operation tmp = *oper0;
+ *oper0 = *oper1;
+ *oper1 = tmp;
}
+
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