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* Copyright 2013 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#ifndef SkStreamPriv_DEFINED
#define SkStreamPriv_DEFINED
#include "include/core/SkRefCnt.h"
#include "include/core/SkStream.h"
class SkData;
* Copy the provided stream to an SkData variable.
* Note: Assumes the stream is at the beginning. If it has a length,
* but is not at the beginning, this call will fail (return NULL).
* @param stream SkStream to be copied into data.
* @return The resulting SkData after the copy, nullptr on failure.
sk_sp<SkData> SkCopyStreamToData(SkStream* stream);
* Copies the input stream from the current position to the end.
* Does not rewind the input stream.
bool SkStreamCopy(SkWStream* out, SkStream* input);
/** A SkWStream that writes all output to SkDebugf, for debugging purposes. */
class SkDebugfStream final : public SkWStream {
bool write(const void* buffer, size_t size) override;
size_t bytesWritten() const override;
size_t fBytesWritten = 0;
// If the stream supports identifying the current position and total length, this returns
// true if there are not enough bytes in the stream to fulfill a read of the given length.
// Otherwise, it returns false.
// False does *not* mean a read will succeed of the given length, but true means we are
// certain it will fail.
bool StreamRemainingLengthIsBelow(SkStream* stream, size_t len);
#endif // SkStreamPriv_DEFINED