The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/images/SkStreamHelpers.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,40 @@
     1.4 +/*
     1.5 + * Copyright 2013 Google Inc.
     1.6 + *
     1.7 + * Use of this source code is governed by a BSD-style license that can be
     1.8 + * found in the LICENSE file.
     1.9 + */
    1.10 +
    1.11 +#include "SkStream.h"
    1.12 +#include "SkStreamHelpers.h"
    1.13 +#include "SkTypes.h"
    1.14 +
    1.15 +size_t CopyStreamToStorage(SkAutoMalloc* storage, SkStream* stream) {
    1.16 +    SkASSERT(storage != NULL);
    1.17 +    SkASSERT(stream != NULL);
    1.18 +
    1.19 +    if (stream->hasLength()) {
    1.20 +        const size_t length = stream->getLength();
    1.21 +        void* dst = storage->reset(length);
    1.22 +        if (stream->read(dst, length) != length) {
    1.23 +            return 0;
    1.24 +        }
    1.25 +        return length;
    1.26 +    }
    1.27 +
    1.28 +    SkDynamicMemoryWStream tempStream;
    1.29 +    // Arbitrary buffer size.
    1.30 +    const size_t bufferSize = 256 * 1024; // 256KB
    1.31 +    char buffer[bufferSize];
    1.32 +    SkDEBUGCODE(size_t debugLength = 0;)
    1.33 +    do {
    1.34 +        size_t bytesRead = stream->read(buffer, bufferSize);
    1.35 +        tempStream.write(buffer, bytesRead);
    1.36 +        SkDEBUGCODE(debugLength += bytesRead);
    1.37 +        SkASSERT(tempStream.bytesWritten() == debugLength);
    1.38 +    } while (!stream->isAtEnd());
    1.39 +    const size_t length = tempStream.bytesWritten();
    1.40 +    void* dst = storage->reset(length);
    1.41 +    tempStream.copyTo(dst);
    1.42 +    return length;
    1.43 +}