add cairo

1 files changed, 139 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/src/cairo-freelist-private.h b/libs/cairo-1.16.0/src/cairo-freelist-private.h
new file mode 100644
index 0000000..f85f689
--- /dev/null
+++ b/libs/cairo-1.16.0/src/cairo-freelist-private.h
@@ -0,0 +1,139 @@
+/*
+ * Copyright © 2006 Joonas Pihlaja
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting documentation, and
+ * that the name of the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  The copyright holders make no representations
+ * about the suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+#ifndef CAIRO_FREELIST_H
+#define CAIRO_FREELIST_H
+
+#include "cairo-types-private.h"
+#include "cairo-compiler-private.h"
+#include "cairo-freelist-type-private.h"
+
+/* for stand-alone compilation*/
+#ifndef VG
+#define VG(x)
+#endif
+
+#ifndef NULL
+#define NULL (void *) 0
+#endif
+
+/* Initialise a freelist that will be responsible for allocating
+ * nodes of size nodesize. */
+cairo_private void
+_cairo_freelist_init (cairo_freelist_t *freelist, unsigned nodesize);
+
+/* Deallocate any nodes in the freelist. */
+cairo_private void
+_cairo_freelist_fini (cairo_freelist_t *freelist);
+
+/* Allocate a new node from the freelist.  If the freelist contains no
+ * nodes, a new one will be allocated using malloc().  The caller is
+ * responsible for calling _cairo_freelist_free() or free() on the
+ * returned node.  Returns %NULL on memory allocation error. */
+cairo_private void *
+_cairo_freelist_alloc (cairo_freelist_t *freelist);
+
+/* Allocate a new node from the freelist.  If the freelist contains no
+ * nodes, a new one will be allocated using calloc().  The caller is
+ * responsible for calling _cairo_freelist_free() or free() on the
+ * returned node.  Returns %NULL on memory allocation error. */
+cairo_private void *
+_cairo_freelist_calloc (cairo_freelist_t *freelist);
+
+/* Return a node to the freelist. This does not deallocate the memory,
+ * but makes it available for later reuse by
+ * _cairo_freelist_alloc(). */
+cairo_private void
+_cairo_freelist_free (cairo_freelist_t *freelist, void *node);
+
+
+cairo_private void
+_cairo_freepool_init (cairo_freepool_t *freepool, unsigned nodesize);
+
+cairo_private void
+_cairo_freepool_fini (cairo_freepool_t *freepool);
+
+static inline void
+_cairo_freepool_reset (cairo_freepool_t *freepool)
+{
+    while (freepool->pools != &freepool->embedded_pool) {
+	cairo_freelist_pool_t *pool = freepool->pools;
+	freepool->pools = pool->next;
+	pool->next = freepool->freepools;
+	freepool->freepools = pool;
+    }
+
+    freepool->embedded_pool.rem = sizeof (freepool->embedded_data);
+    freepool->embedded_pool.data = freepool->embedded_data;
+}
+
+cairo_private void *
+_cairo_freepool_alloc_from_new_pool (cairo_freepool_t *freepool);
+
+static inline void *
+_cairo_freepool_alloc_from_pool (cairo_freepool_t *freepool)
+{
+    cairo_freelist_pool_t *pool;
+    uint8_t *ptr;
+
+    pool = freepool->pools;
+    if (unlikely (freepool->nodesize > pool->rem))
+	return _cairo_freepool_alloc_from_new_pool (freepool);
+
+    ptr = pool->data;
+    pool->data += freepool->nodesize;
+    pool->rem -= freepool->nodesize;
+    VG (VALGRIND_MAKE_MEM_UNDEFINED (ptr, freepool->nodesize));
+    return ptr;
+}
+
+static inline void *
+_cairo_freepool_alloc (cairo_freepool_t *freepool)
+{
+    cairo_freelist_node_t *node;
+
+    node = freepool->first_free_node;
+    if (node == NULL)
+	return _cairo_freepool_alloc_from_pool (freepool);
+
+    VG (VALGRIND_MAKE_MEM_DEFINED (node, sizeof (node->next)));
+    freepool->first_free_node = node->next;
+    VG (VALGRIND_MAKE_MEM_UNDEFINED (node, freepool->nodesize));
+
+    return node;
+}
+
+cairo_private cairo_status_t
+_cairo_freepool_alloc_array (cairo_freepool_t *freepool,
+			     int count,
+			     void **array);
+
+static inline void
+_cairo_freepool_free (cairo_freepool_t *freepool, void *ptr)
+{
+    cairo_freelist_node_t *node = ptr;
+
+    node->next = freepool->first_free_node;
+    freepool->first_free_node = node;
+    VG (VALGRIND_MAKE_MEM_UNDEFINED (node, freepool->nodesize));
+}
+
+#endif /* CAIRO_FREELIST_H */