af9c85dee1
SkPDFStream copy constructor
SkPDFStream Substitute mechanism
SkPDFStream::setData(NULL);
SkPDFStream SK_NO_FLATE logic
BUG=skia:3585
TBR=bsalomon@google.com,reed@google.com
Review URL: https://codereview.chromium.org/1041183002
73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
/*
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* Copyright 2015 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkFlate.h"
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#include "SkRandom.h"
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#include "Test.h"
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DEF_TEST(SkDeflateWStream, r) {
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SkRandom random(123456);
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for (int i = 0; i < 50; ++i) {
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uint32_t size = random.nextULessThan(10000);
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SkAutoTMalloc<uint8_t> buffer(size);
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for (uint32_t j = 0; j < size; ++j) {
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buffer[j] = random.nextU() & 0xff;
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}
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SkDynamicMemoryWStream dynamicMemoryWStream;
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{
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SkDeflateWStream deflateWStream(&dynamicMemoryWStream);
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uint32_t j = 0;
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while (j < size) {
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uint32_t writeSize =
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SkTMin(size - j, random.nextRangeU(1, 400));
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if (!deflateWStream.write(&buffer[j], writeSize)) {
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ERRORF(r, "something went wrong.");
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return;
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}
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j += writeSize;
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}
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}
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SkAutoTDelete<SkStreamAsset> compressed(
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dynamicMemoryWStream.detachAsStream());
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SkDynamicMemoryWStream decompressedDynamicMemoryWStream;
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SkAssertResult(SkFlate::Inflate(compressed,
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&decompressedDynamicMemoryWStream));
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SkAutoTDelete<SkStreamAsset> decompressed(
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decompressedDynamicMemoryWStream.detachAsStream());
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if (decompressed->getLength() != size) {
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ERRORF(r, "Decompression failed to get right size [%d]."
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" %u != %u", i, (unsigned)(decompressed->getLength()),
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(unsigned)size);
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SkString s = SkStringPrintf("/tmp/deftst_compressed_%d", i);
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SkFILEWStream o(s.c_str());
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o.writeStream(compressed.get(), compressed->getLength());
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compressed->rewind();
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s = SkStringPrintf("/tmp/deftst_input_%d", i);
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SkFILEWStream o2(s.c_str());
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o2.write(&buffer[0], size);
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continue;
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}
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uint32_t minLength = SkTMin(size,
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(uint32_t)(decompressed->getLength()));
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for (uint32_t i = 0; i < minLength; ++i) {
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uint8_t c;
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SkDEBUGCODE(size_t rb =)decompressed->read(&c, sizeof(uint8_t));
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SkASSERT(sizeof(uint8_t) == rb);
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if (buffer[i] != c) {
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ERRORF(r, "Decompression failed at byte %u.", (unsigned)i);
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break;
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}
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}
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}
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}
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