1/*
2 * Copyright 2013 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#ifndef SkStreamHelpers_DEFINED
9#define SkStreamHelpers_DEFINED
10
11class SkAutoMalloc;
12class SkStream;
13class SkData;
14
15/**
16 *  Copy the provided stream to memory allocated by storage.
17 *  Used by SkImageDecoder_libbmp and SkImageDecoder_libico.
18 *  @param storage Allocator to hold the memory. Will be reset to be large
19 *      enough to hold the entire stream. Upon successful return,
20 *      storage->get() will point to data holding the SkStream's entire
21 *      contents.
22 *  @param stream SkStream to be copied into storage.
23 *  @return size_t Total number of bytes in the SkStream, which is also the
24 *      number of bytes pointed to by storage->get(). Returns 0 on failure.
25 */
26size_t CopyStreamToStorage(SkAutoMalloc* storage, SkStream* stream);
27
28/**
29 *  Copy the provided stream to an SkData variable. Used by SkImageDecoder_libktx.
30 *  @param stream SkStream to be copied into data.
31 *  @return SkData* The resulting SkData after the copy. This data will have a
32 *      ref count of one upon return and belongs to the caller. Returns NULL on failure.
33 */
34SkData *CopyStreamToData(SkStream* stream);
35
36#endif // SkStreamHelpers_DEFINED
37