Added MesaLib-7.6

1 files changed, 228 insertions, 0 deletions

diff --git a/mesalib/src/mesa/shader/slang/slang_utility.c b/mesalib/src/mesa/shader/slang/slang_utility.c
new file mode 100644
index 000000000..3631e32b3
--- /dev/null
+++ b/mesalib/src/mesa/shader/slang/slang_utility.c
@@ -0,0 +1,228 @@
+/*
+ * 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_utility.c
+ * slang utilities
+ * \author Michal Krol
+ */
+
+#include "main/imports.h"
+#include "slang_utility.h"
+#include "slang_mem.h"
+
+char *
+slang_string_concat (char *dst, const char *src)
+{
+   return _mesa_strcpy (dst + _mesa_strlen (dst), src);
+}
+
+
+/* slang_string */
+
+GLvoid
+slang_string_init (slang_string *self)
+{
+   self->data = NULL;
+   self->capacity = 0;
+   self->length = 0;
+   self->fail = GL_FALSE;
+}
+
+GLvoid
+slang_string_free (slang_string *self)
+{
+   if (self->data != NULL)
+      _mesa_free (self->data);
+}
+
+GLvoid
+slang_string_reset (slang_string *self)
+{
+   self->length = 0;
+   self->fail = GL_FALSE;
+}
+
+static GLboolean
+grow (slang_string *self, GLuint size)
+{
+   if (self->fail)
+      return GL_FALSE;
+   if (size > self->capacity) {
+      /* do not overflow 32-bit range */
+      assert (size < 0x80000000);
+
+      self->data = (char *) (_mesa_realloc (self->data, self->capacity, size * 2));
+      self->capacity = size * 2;
+      if (self->data == NULL) {
+         self->capacity = 0;
+         self->fail = GL_TRUE;
+         return GL_FALSE;
+      }
+   }
+   return GL_TRUE;
+}
+
+GLvoid
+slang_string_push (slang_string *self, const slang_string *str)
+{
+   if (str->fail) {
+      self->fail = GL_TRUE;
+      return;
+   }
+   if (grow (self, self->length + str->length)) {
+      _mesa_memcpy (&self->data[self->length], str->data, str->length);
+      self->length += str->length;
+   }
+}
+
+GLvoid
+slang_string_pushc (slang_string *self, const char c)
+{
+   if (grow (self, self->length + 1)) {
+      self->data[self->length] = c;
+      self->length++;
+   }
+}
+
+GLvoid
+slang_string_pushs (slang_string *self, const char *cstr, GLuint len)
+{
+   if (grow (self, self->length + len)) {
+      _mesa_memcpy (&self->data[self->length], cstr, len);
+      self->length += len;
+   }
+}
+
+GLvoid
+slang_string_pushi (slang_string *self, GLint i)
+{
+   char buffer[12];
+
+   _mesa_sprintf (buffer, "%d", i);
+   slang_string_pushs (self, buffer, strlen (buffer));
+}
+
+const char *
+slang_string_cstr (slang_string *self)
+{
+   if (grow (self, self->length + 1))
+      self->data[self->length] = '\0';
+   return self->data;
+}
+
+/* slang_atom_pool */
+
+void
+slang_atom_pool_construct(slang_atom_pool * pool)
+{
+   GLuint i;
+
+   for (i = 0; i < SLANG_ATOM_POOL_SIZE; i++)
+      pool->entries[i] = NULL;
+}
+
+void
+slang_atom_pool_destruct (slang_atom_pool * pool)
+{
+   GLuint i;
+
+   for (i = 0; i < SLANG_ATOM_POOL_SIZE; i++) {
+      slang_atom_entry * entry;
+		
+      entry = pool->entries[i];
+      while (entry != NULL) {
+         slang_atom_entry *next = entry->next;
+         _slang_free(entry->id);
+         _slang_free(entry);
+         entry = next;
+      }
+   }
+}
+
+/*
+ * Search the atom pool for an atom with a given name.
+ * If atom is not found, create and add it to the pool.
+ * Returns ATOM_NULL if the atom was not found and the function failed
+ * to create a new atom.
+ */
+slang_atom
+slang_atom_pool_atom(slang_atom_pool * pool, const char * id)
+{
+   GLuint hash;
+   const char * p = id;
+   slang_atom_entry ** entry;
+
+   /* Hash a given string to a number in the range [0, ATOM_POOL_SIZE). */
+   hash = 0;
+   while (*p != '\0') {
+      GLuint g;
+
+      hash = (hash << 4) + (GLuint) (*p++);
+      g = hash & 0xf0000000;
+      if (g != 0)
+         hash ^= g >> 24;
+      hash &= ~g;
+   }
+   hash %= SLANG_ATOM_POOL_SIZE;
+
+   /* Now the hash points to a linked list of atoms with names that
+    * have the same hash value.  Search the linked list for a given
+    * name.
+    */
+   entry = &pool->entries[hash];
+   while (*entry != NULL) {
+      /* If the same, return the associated atom. */
+      if (slang_string_compare((**entry).id, id) == 0)
+         return (slang_atom) (**entry).id;
+      /* Grab the next atom in the linked list. */
+      entry = &(**entry).next;
+   }
+
+   /* Okay, we have not found an atom. Create a new entry for it.
+    * Note that the <entry> points to the last entry's <next> field.
+    */
+   *entry = (slang_atom_entry *) _slang_alloc(sizeof(slang_atom_entry));
+   if (*entry == NULL)
+      return SLANG_ATOM_NULL;
+
+   /* Initialize a new entry. Because we'll need the actual name of
+    * the atom, we use the pointer to this string as an actual atom's
+    * value.
+    */
+   (**entry).next = NULL;
+   (**entry).id = _slang_strdup(id);
+   if ((**entry).id == NULL)
+      return SLANG_ATOM_NULL;
+   return (slang_atom) (**entry).id;
+}
+
+/**
+ * Return the name of a given atom.
+ */
+const char *
+slang_atom_pool_id(slang_atom_pool * pool, slang_atom atom)
+{
+   return (const char *) (atom);
+}