The Tor Browser / file comparison
comparison: gfx/skia/trunk/src/images/SkStreamHelpers.cpp
gfx/skia/trunk/src/images/SkStreamHelpers.cpp
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
equal
deleted
inserted
replaced
| -1:000000000000 | 0:f0964945739a |
|---|---|
| 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 #include "SkStream.h" | |
| 9 #include "SkStreamHelpers.h" | |
| 10 #include "SkTypes.h" | |
| 11 | |
| 12 size_t CopyStreamToStorage(SkAutoMalloc* storage, SkStream* stream) { | |
| 13 SkASSERT(storage != NULL); | |
| 14 SkASSERT(stream != NULL); | |
| 15 | |
| 16 if (stream->hasLength()) { | |
| 17 const size_t length = stream->getLength(); | |
| 18 void* dst = storage->reset(length); | |
| 19 if (stream->read(dst, length) != length) { | |
| 20 return 0; | |
| 21 } | |
| 22 return length; | |
| 23 } | |
| 24 | |
| 25 SkDynamicMemoryWStream tempStream; | |
| 26 // Arbitrary buffer size. | |
| 27 const size_t bufferSize = 256 * 1024; // 256KB | |
| 28 char buffer[bufferSize]; | |
| 29 SkDEBUGCODE(size_t debugLength = 0;) | |
| 30 do { | |
| 31 size_t bytesRead = stream->read(buffer, bufferSize); | |
| 32 tempStream.write(buffer, bytesRead); | |
| 33 SkDEBUGCODE(debugLength += bytesRead); | |
| 34 SkASSERT(tempStream.bytesWritten() == debugLength); | |
| 35 } while (!stream->isAtEnd()); | |
| 36 const size_t length = tempStream.bytesWritten(); | |
| 37 void* dst = storage->reset(length); | |
| 38 tempStream.copyTo(dst); | |
| 39 return length; | |
| 40 } |
