3 files changed, 181 insertions, 0 deletions
diff --git a/media/libvpx/vpx_mem/include/vpx_mem_intrnl.h b/media/libvpx/vpx_mem/include/vpx_mem_intrnl.h
new file mode 100644
index 000000000..c4dd78550
--- /dev/null
+++ b/media/libvpx/vpx_mem/include/vpx_mem_intrnl.h
@@ -0,0 +1,31 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VPX_MEM_INCLUDE_VPX_MEM_INTRNL_H_
+#define VPX_MEM_INCLUDE_VPX_MEM_INTRNL_H_
+#include "./vpx_config.h"
+
+#define ADDRESS_STORAGE_SIZE      sizeof(size_t)
+
+#ifndef DEFAULT_ALIGNMENT
+# if defined(VXWORKS)
+#  define DEFAULT_ALIGNMENT        32        /*default addr alignment to use in
+calls to vpx_* functions other
+than vpx_memalign*/
+# else
+#  define DEFAULT_ALIGNMENT        (2 * sizeof(void*))  /* NOLINT */
+# endif
+#endif
+
+/*returns an addr aligned to the byte boundary specified by align*/
+#define align_addr(addr,align) (void*)(((size_t)(addr) + ((align) - 1)) & (size_t)-(align))
+
+#endif  // VPX_MEM_INCLUDE_VPX_MEM_INTRNL_H_
diff --git a/media/libvpx/vpx_mem/vpx_mem.c b/media/libvpx/vpx_mem/vpx_mem.c
new file mode 100644
index 000000000..b60d7319c
--- /dev/null
+++ b/media/libvpx/vpx_mem/vpx_mem.c
@@ -0,0 +1,103 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#define __VPX_MEM_C__
+
+#include "vpx_mem.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "include/vpx_mem_intrnl.h"
+#include "vpx/vpx_integer.h"
+
+void *vpx_memalign(size_t align, size_t size) {
+  void *addr,
+       * x = NULL;
+
+  addr = malloc(size + align - 1 + ADDRESS_STORAGE_SIZE);
+
+  if (addr) {
+    x = align_addr((unsigned char *)addr + ADDRESS_STORAGE_SIZE, (int)align);
+    /* save the actual malloc address */
+    ((size_t *)x)[-1] = (size_t)addr;
+  }
+
+  return x;
+}
+
+void *vpx_malloc(size_t size) {
+  return vpx_memalign(DEFAULT_ALIGNMENT, size);
+}
+
+void *vpx_calloc(size_t num, size_t size) {
+  void *x;
+
+  x = vpx_memalign(DEFAULT_ALIGNMENT, num * size);
+
+  if (x)
+    memset(x, 0, num * size);
+
+  return x;
+}
+
+void *vpx_realloc(void *memblk, size_t size) {
+  void *addr,
+       * new_addr = NULL;
+  int align = DEFAULT_ALIGNMENT;
+
+  /*
+  The realloc() function changes the size of the object pointed to by
+  ptr to the size specified by size, and returns a pointer to the
+  possibly moved block. The contents are unchanged up to the lesser
+  of the new and old sizes. If ptr is null, realloc() behaves like
+  malloc() for the specified size. If size is zero (0) and ptr is
+  not a null pointer, the object pointed to is freed.
+  */
+  if (!memblk)
+    new_addr = vpx_malloc(size);
+  else if (!size)
+    vpx_free(memblk);
+  else {
+    addr   = (void *)(((size_t *)memblk)[-1]);
+    memblk = NULL;
+
+    new_addr = realloc(addr, size + align + ADDRESS_STORAGE_SIZE);
+
+    if (new_addr) {
+      addr = new_addr;
+      new_addr = (void *)(((size_t)
+                           ((unsigned char *)new_addr + ADDRESS_STORAGE_SIZE) + (align - 1)) &
+                          (size_t) - align);
+      /* save the actual malloc address */
+      ((size_t *)new_addr)[-1] = (size_t)addr;
+    }
+  }
+
+  return new_addr;
+}
+
+void vpx_free(void *memblk) {
+  if (memblk) {
+    void *addr = (void *)(((size_t *)memblk)[-1]);
+    free(addr);
+  }
+}
+
+#if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
+void *vpx_memset16(void *dest, int val, size_t length) {
+  int i;
+  void *orig = dest;
+  uint16_t *dest16 = dest;
+  for (i = 0; i < length; i++)
+    *dest16++ = val;
+  return orig;
+}
+#endif  // CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
diff --git a/media/libvpx/vpx_mem/vpx_mem.h b/media/libvpx/vpx_mem/vpx_mem.h
new file mode 100644
index 000000000..a027714a0
--- /dev/null
+++ b/media/libvpx/vpx_mem/vpx_mem.h
@@ -0,0 +1,47 @@
+/*
+ *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+
+#ifndef VPX_MEM_VPX_MEM_H_
+#define VPX_MEM_VPX_MEM_H_
+
+#include "vpx_config.h"
+#if defined(__uClinux__)
+# include <lddk.h>
+#endif
+
+#include <stdlib.h>
+#include <stddef.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+  void *vpx_memalign(size_t align, size_t size);
+  void *vpx_malloc(size_t size);
+  void *vpx_calloc(size_t num, size_t size);
+  void *vpx_realloc(void *memblk, size_t size);
+  void vpx_free(void *memblk);
+
+#if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
+  void *vpx_memset16(void *dest, int val, size_t length);
+#endif
+
+#include <string.h>
+
+#ifdef VPX_MEM_PLTFRM
+# include VPX_MEM_PLTFRM
+#endif
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif  // VPX_MEM_VPX_MEM_H_