i965: Drop pointless check for variable declarations in splitting.

[mesa.git] / src / mesa / drivers / dri / i965 / intel_resolve_map.c

diff --git a/src/mesa/drivers/dri/i965/intel_resolve_map.c b/src/mesa/drivers/dri/i965/intel_resolve_map.c
deleted file mode 120000 (symlink)
index 77e50fbaea488046295b5728872353d582113420..0000000000000000000000000000000000000000
--- a/src/mesa/drivers/dri/i965/intel_resolve_map.c
+++ /dev/null
@@ -1 +0,0 @@
-../intel/intel_resolve_map.c
\ No newline at end of file

diff --git a/src/mesa/drivers/dri/i965/intel_resolve_map.c b/src/mesa/drivers/dri/i965/intel_resolve_map.c
new file mode 100644 (file)
index 0000000000000000000000000000000000000000..04b5c9424323953fec307e5204b41bfc339c5cf5
--- /dev/null
+++ b/src/mesa/drivers/dri/i965/intel_resolve_map.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * 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 (including the next
+ * paragraph) 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#include "intel_resolve_map.h"
+
+#include <assert.h>
+#include <stdlib.h>
+
+/**
+ * \brief Set that the miptree slice at (level, layer) needs a resolve.
+ *
+ * If a map element already exists with the given key, then the value is
+ * changed to the given value of \c need.
+ */
+void
+intel_resolve_map_set(struct intel_resolve_map *head,
+                     uint32_t level,
+                     uint32_t layer,
+                     enum gen6_hiz_op need)
+{
+   struct intel_resolve_map **tail = &head->next;
+   struct intel_resolve_map *prev = head;
+
+   while (*tail) {
+      if ((*tail)->level == level && (*tail)->layer == layer) {
+         (*tail)->need = need;
+        return;
+      }
+      prev = *tail;
+      tail = &(*tail)->next;
+   }
+
+   *tail = malloc(sizeof(**tail));
+   (*tail)->prev = prev;
+   (*tail)->next = NULL;
+   (*tail)->level = level;
+   (*tail)->layer = layer;
+   (*tail)->need = need;
+}
+
+/**
+ * \brief Get an element from the map.
+ * \return null if element is not contained in map.
+ */
+struct intel_resolve_map*
+intel_resolve_map_get(struct intel_resolve_map *head,
+                     uint32_t level,
+                     uint32_t layer)
+{
+   struct intel_resolve_map *item = head->next;
+
+   while (item) {
+      if (item->level == level && item->layer == layer)
+        break;
+      else
+        item = item->next;
+   }
+
+   return item;
+}
+
+/**
+ * \brief Remove and free an element from the map.
+ */
+void
+intel_resolve_map_remove(struct intel_resolve_map *elem)
+{
+   if (elem->prev)
+      elem->prev->next = elem->next;
+   if (elem->next)
+      elem->next->prev = elem->prev;
+   free(elem);
+}
+
+/**
+ * \brief Remove and free all elements of the map.
+ */
+void
+intel_resolve_map_clear(struct intel_resolve_map *head)
+{
+   struct intel_resolve_map *next = head->next;
+   struct intel_resolve_map *trash;
+
+   while (next) {
+      trash = next;
+      next = next->next;
+      free(trash);
+   }
+
+   head->next = NULL;
+}