scroggo@google.com | dbf9f88 | 2013-08-21 15:01:48 +0000 | [diff] [blame] | 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 | |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 8 | #ifndef SkStreamPriv_DEFINED |
| 9 | #define SkStreamPriv_DEFINED |
scroggo@google.com | dbf9f88 | 2013-08-21 15:01:48 +0000 | [diff] [blame] | 10 | |
| 11 | class SkAutoMalloc; |
| 12 | class SkStream; |
halcanary | e322482 | 2014-07-14 09:12:12 -0700 | [diff] [blame] | 13 | class SkStreamRewindable; |
krajcevski | 99ffe24 | 2014-06-03 13:04:35 -0700 | [diff] [blame] | 14 | class SkData; |
scroggo@google.com | dbf9f88 | 2013-08-21 15:01:48 +0000 | [diff] [blame] | 15 | |
| 16 | /** |
| 17 | * Copy the provided stream to memory allocated by storage. |
| 18 | * Used by SkImageDecoder_libbmp and SkImageDecoder_libico. |
| 19 | * @param storage Allocator to hold the memory. Will be reset to be large |
| 20 | * enough to hold the entire stream. Upon successful return, |
| 21 | * storage->get() will point to data holding the SkStream's entire |
| 22 | * contents. |
| 23 | * @param stream SkStream to be copied into storage. |
| 24 | * @return size_t Total number of bytes in the SkStream, which is also the |
| 25 | * number of bytes pointed to by storage->get(). Returns 0 on failure. |
| 26 | */ |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 27 | size_t SkCopyStreamToStorage(SkAutoMalloc* storage, SkStream* stream); |
scroggo@google.com | dbf9f88 | 2013-08-21 15:01:48 +0000 | [diff] [blame] | 28 | |
krajcevski | 99ffe24 | 2014-06-03 13:04:35 -0700 | [diff] [blame] | 29 | /** |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 30 | * Copy the provided stream to an SkData variable. |
krajcevski | 99ffe24 | 2014-06-03 13:04:35 -0700 | [diff] [blame] | 31 | * @param stream SkStream to be copied into data. |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 32 | * @return SkData* The resulting SkData after the copy. This data |
| 33 | * will have a ref count of one upon return and belongs to the |
| 34 | * caller. Returns NULL on failure. |
krajcevski | 99ffe24 | 2014-06-03 13:04:35 -0700 | [diff] [blame] | 35 | */ |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 36 | SkData *SkCopyStreamToData(SkStream* stream); |
krajcevski | 99ffe24 | 2014-06-03 13:04:35 -0700 | [diff] [blame] | 37 | |
halcanary | e322482 | 2014-07-14 09:12:12 -0700 | [diff] [blame] | 38 | /** |
| 39 | * Attempt to convert this stream to a StreamRewindable in the |
| 40 | * cheapest possible manner (calling duplicate() if possible, and |
| 41 | * otherwise allocating memory for a copy). The position of the |
| 42 | * input stream is left in an indeterminate state. |
| 43 | */ |
| 44 | SkStreamRewindable* SkStreamRewindableFromSkStream(SkStream* stream); |
| 45 | |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 46 | #endif // SkStreamPriv_DEFINED |