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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.
*/
#include "SkData.h"
#include "SkStream.h"
#include "SkStreamHelpers.h"
#include "SkTypes.h"
size_t CopyStreamToStorage(SkAutoMalloc* storage, SkStream* stream) {
SkASSERT(storage != NULL);
SkASSERT(stream != NULL);
if (stream->hasLength()) {
const size_t length = stream->getLength();
void* dst = storage->reset(length);
if (stream->read(dst, length) != length) {
return 0;
}
return length;
}
SkDynamicMemoryWStream tempStream;
// Arbitrary buffer size.
const size_t bufferSize = 256 * 1024; // 256KB
char buffer[bufferSize];
SkDEBUGCODE(size_t debugLength = 0;)
do {
size_t bytesRead = stream->read(buffer, bufferSize);
tempStream.write(buffer, bytesRead);
SkDEBUGCODE(debugLength += bytesRead);
SkASSERT(tempStream.bytesWritten() == debugLength);
} while (!stream->isAtEnd());
const size_t length = tempStream.bytesWritten();
void* dst = storage->reset(length);
tempStream.copyTo(dst);
return length;
}
SkData *CopyStreamToData(SkStream* stream) {
SkASSERT(stream != NULL);
if (stream->hasLength()) {
const size_t length = stream->getLength();
void* dst = sk_malloc_throw(length);
if (stream->read(dst, length) != length) {
return 0;
}
return SkData::NewFromMalloc(dst, length);
}
SkDynamicMemoryWStream tempStream;
// Arbitrary buffer size.
const size_t bufferSize = 256 * 1024; // 256KB
char buffer[bufferSize];
SkDEBUGCODE(size_t debugLength = 0;)
do {
size_t bytesRead = stream->read(buffer, bufferSize);
tempStream.write(buffer, bytesRead);
SkDEBUGCODE(debugLength += bytesRead);
SkASSERT(tempStream.bytesWritten() == debugLength);
} while (!stream->isAtEnd());
return tempStream.copyToData();
}
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