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-rw-r--r--media/libvpx/vpx_mem/include/vpx_mem_intrnl.h31
-rw-r--r--media/libvpx/vpx_mem/vpx_mem.c103
-rw-r--r--media/libvpx/vpx_mem/vpx_mem.h47
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_