4debcac8c3
http://codereview.appspot.com/6208055/ git-svn-id: http://skia.googlecode.com/svn/trunk@3924 2bbb7eff-a529-9590-31e7-b0007b416f81
327 lines
14 KiB
C++
327 lines
14 KiB
C++
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/*
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* Copyright 2010 The Android Open Source Project
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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 "Test.h"
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#include "SkData.h"
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#include "SkFlate.h"
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#include "SkPDFCatalog.h"
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#include "SkPDFStream.h"
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#include "SkPDFTypes.h"
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#include "SkScalar.h"
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#include "SkStream.h"
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#include "SkTypes.h"
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class SkPDFTestDict : public SkPDFDict {
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public:
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void getResources(SkTDArray<SkPDFObject*>* resourceList) {
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resourceList->setReserve(resourceList->count() + fResources.count());
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for (int i = 0; i < fResources.count(); i++) {
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resourceList->push(fResources[i]);
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fResources[i]->ref();
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}
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}
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void addResource(SkPDFObject* object) {
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fResources.append(1, &object);
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}
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private:
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SkTDArray<SkPDFObject*> fResources;
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};
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static bool stream_equals(const SkDynamicMemoryWStream& stream, size_t offset,
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const void* buffer, size_t len) {
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SkAutoDataUnref data(stream.copyToData());
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if (offset + len > data.size()) {
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return false;
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}
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return memcmp(data.bytes() + offset, buffer, len) == 0;
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}
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static void CheckObjectOutput(skiatest::Reporter* reporter, SkPDFObject* obj,
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const char* expectedData, size_t expectedSize,
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bool indirect, bool compression) {
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SkPDFDocument::Flags docFlags = (SkPDFDocument::Flags) 0;
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if (!compression) {
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docFlags = SkTBitOr(docFlags, SkPDFDocument::kNoCompression_Flag);
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}
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SkPDFCatalog catalog(docFlags);
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size_t directSize = obj->getOutputSize(&catalog, false);
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REPORTER_ASSERT(reporter, directSize == expectedSize);
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SkDynamicMemoryWStream buffer;
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obj->emit(&buffer, &catalog, false);
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REPORTER_ASSERT(reporter, directSize == buffer.getOffset());
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REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedData,
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directSize));
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if (indirect) {
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// Indirect output.
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static char header[] = "1 0 obj\n";
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static size_t headerLen = strlen(header);
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static char footer[] = "\nendobj\n";
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static size_t footerLen = strlen(footer);
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catalog.addObject(obj, false);
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size_t indirectSize = obj->getOutputSize(&catalog, true);
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REPORTER_ASSERT(reporter,
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indirectSize == directSize + headerLen + footerLen);
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buffer.reset();
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obj->emit(&buffer, &catalog, true);
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REPORTER_ASSERT(reporter, indirectSize == buffer.getOffset());
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REPORTER_ASSERT(reporter, stream_equals(buffer, 0, header, headerLen));
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REPORTER_ASSERT(reporter, stream_equals(buffer, headerLen, expectedData,
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directSize));
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REPORTER_ASSERT(reporter, stream_equals(buffer, headerLen + directSize,
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footer, footerLen));
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}
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}
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static void SimpleCheckObjectOutput(skiatest::Reporter* reporter,
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SkPDFObject* obj,
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const char* expectedResult) {
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CheckObjectOutput(reporter, obj, expectedResult,
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strlen(expectedResult), true, false);
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}
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static void TestPDFStream(skiatest::Reporter* reporter) {
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char streamBytes[] = "Test\nFoo\tBar";
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SkRefPtr<SkMemoryStream> streamData = new SkMemoryStream(
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streamBytes, strlen(streamBytes), true);
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streamData->unref(); // SkRefPtr and new both took a reference.
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SkRefPtr<SkPDFStream> stream = new SkPDFStream(streamData.get());
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stream->unref(); // SkRefPtr and new both took a reference.
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SimpleCheckObjectOutput(
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reporter, stream.get(),
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"<</Length 12\n>> stream\nTest\nFoo\tBar\nendstream");
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stream->insert("Attribute", new SkPDFInt(42))->unref();
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SimpleCheckObjectOutput(reporter, stream.get(),
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"<</Length 12\n/Attribute 42\n>> stream\n"
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"Test\nFoo\tBar\nendstream");
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if (SkFlate::HaveFlate()) {
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char streamBytes2[] = "This is a longer string, so that compression "
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"can do something with it. With shorter strings, "
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"the short circuit logic cuts in and we end up "
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"with an uncompressed string.";
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SkAutoDataUnref streamData2(SkData::NewWithCopy(streamBytes2,
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strlen(streamBytes2)));
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SkRefPtr<SkPDFStream> stream = new SkPDFStream(streamData2.get());
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stream->unref(); // SkRefPtr and new both took a reference.
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SkDynamicMemoryWStream compressedByteStream;
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SkFlate::Deflate(streamData2.get(), &compressedByteStream);
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SkAutoDataUnref compressedData(compressedByteStream.copyToData());
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// Check first without compression.
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SkDynamicMemoryWStream expectedResult1;
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expectedResult1.writeText("<</Length 167\n>> stream\n");
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expectedResult1.writeText(streamBytes2);
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expectedResult1.writeText("\nendstream");
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SkAutoDataUnref expectedResultData1(expectedResult1.copyToData());
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CheckObjectOutput(reporter, stream.get(),
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(const char*) expectedResultData1.data(),
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expectedResultData1.size(), true, false);
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// Then again with compression.
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SkDynamicMemoryWStream expectedResult2;
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expectedResult2.writeText("<</Filter /FlateDecode\n/Length 116\n"
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">> stream\n");
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expectedResult2.write(compressedData.data(), compressedData.size());
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expectedResult2.writeText("\nendstream");
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SkAutoDataUnref expectedResultData2(expectedResult2.copyToData());
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CheckObjectOutput(reporter, stream.get(),
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(const char*) expectedResultData2.data(),
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expectedResultData2.size(), true, true);
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}
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}
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static void TestCatalog(skiatest::Reporter* reporter) {
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SkPDFCatalog catalog((SkPDFDocument::Flags)0);
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SkRefPtr<SkPDFInt> int1 = new SkPDFInt(1);
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int1->unref(); // SkRefPtr and new both took a reference.
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SkRefPtr<SkPDFInt> int2 = new SkPDFInt(2);
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int2->unref(); // SkRefPtr and new both took a reference.
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SkRefPtr<SkPDFInt> int3 = new SkPDFInt(3);
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int3->unref(); // SkRefPtr and new both took a reference.
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SkRefPtr<SkPDFInt> int1Again(int1.get());
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catalog.addObject(int1.get(), false);
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catalog.addObject(int2.get(), false);
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catalog.addObject(int3.get(), false);
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REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int1.get()) == 3);
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REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int2.get()) == 3);
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REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int3.get()) == 3);
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SkDynamicMemoryWStream buffer;
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catalog.emitObjectNumber(&buffer, int1.get());
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catalog.emitObjectNumber(&buffer, int2.get());
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catalog.emitObjectNumber(&buffer, int3.get());
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catalog.emitObjectNumber(&buffer, int1Again.get());
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char expectedResult[] = "1 02 03 01 0";
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REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResult,
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strlen(expectedResult)));
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}
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static void TestObjectRef(skiatest::Reporter* reporter) {
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SkRefPtr<SkPDFInt> int1 = new SkPDFInt(1);
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int1->unref(); // SkRefPtr and new both took a reference.
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SkRefPtr<SkPDFInt> int2 = new SkPDFInt(2);
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int2->unref(); // SkRefPtr and new both took a reference.
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SkRefPtr<SkPDFObjRef> int2ref = new SkPDFObjRef(int2.get());
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int2ref->unref(); // SkRefPtr and new both took a reference.
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SkPDFCatalog catalog((SkPDFDocument::Flags)0);
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catalog.addObject(int1.get(), false);
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catalog.addObject(int2.get(), false);
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REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int1.get()) == 3);
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REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int2.get()) == 3);
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char expectedResult[] = "2 0 R";
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SkDynamicMemoryWStream buffer;
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int2ref->emitObject(&buffer, &catalog, false);
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REPORTER_ASSERT(reporter, buffer.getOffset() == strlen(expectedResult));
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REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResult,
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buffer.getOffset()));
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}
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static void TestSubstitute(skiatest::Reporter* reporter) {
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SkRefPtr<SkPDFTestDict> proxy = new SkPDFTestDict();
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proxy->unref(); // SkRefPtr and new both took a reference.
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SkRefPtr<SkPDFTestDict> stub = new SkPDFTestDict();
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stub->unref(); // SkRefPtr and new both took a reference.
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SkRefPtr<SkPDFInt> int33 = new SkPDFInt(33);
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int33->unref(); // SkRefPtr and new both took a reference.
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SkRefPtr<SkPDFDict> stubResource = new SkPDFDict();
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stubResource->unref(); // SkRefPtr and new both took a reference.
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SkRefPtr<SkPDFInt> int44 = new SkPDFInt(44);
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int44->unref(); // SkRefPtr and new both took a reference.
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stub->insert("Value", int33.get());
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stubResource->insert("InnerValue", int44.get());
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stub->addResource(stubResource.get());
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SkPDFCatalog catalog((SkPDFDocument::Flags)0);
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catalog.addObject(proxy.get(), false);
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catalog.setSubstitute(proxy.get(), stub.get());
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SkDynamicMemoryWStream buffer;
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proxy->emit(&buffer, &catalog, false);
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catalog.emitSubstituteResources(&buffer, false);
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char objectResult[] = "2 0 obj\n<</Value 33\n>>\nendobj\n";
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REPORTER_ASSERT(
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reporter,
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catalog.setFileOffset(proxy.get(), 0) == strlen(objectResult));
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char expectedResult[] =
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"<</Value 33\n>>1 0 obj\n<</InnerValue 44\n>>\nendobj\n";
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REPORTER_ASSERT(reporter, buffer.getOffset() == strlen(expectedResult));
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REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResult,
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buffer.getOffset()));
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}
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static void TestPDFPrimitives(skiatest::Reporter* reporter) {
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SkRefPtr<SkPDFInt> int42 = new SkPDFInt(42);
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int42->unref(); // SkRefPtr and new both took a reference.
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SimpleCheckObjectOutput(reporter, int42.get(), "42");
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SkRefPtr<SkPDFScalar> realHalf = new SkPDFScalar(SK_ScalarHalf);
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realHalf->unref(); // SkRefPtr and new both took a reference.
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SimpleCheckObjectOutput(reporter, realHalf.get(), "0.5");
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#if defined(SK_SCALAR_IS_FLOAT)
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SkRefPtr<SkPDFScalar> bigScalar = new SkPDFScalar(110999.75);
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bigScalar->unref(); // SkRefPtr and new both took a reference.
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#if !defined(SK_ALLOW_LARGE_PDF_SCALARS)
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SimpleCheckObjectOutput(reporter, bigScalar.get(), "111000");
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#else
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SimpleCheckObjectOutput(reporter, bigScalar.get(), "110999.75");
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SkRefPtr<SkPDFScalar> biggerScalar = new SkPDFScalar(50000000.1);
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biggerScalar->unref(); // SkRefPtr and new both took a reference.
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SimpleCheckObjectOutput(reporter, biggerScalar.get(), "50000000");
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SkRefPtr<SkPDFScalar> smallestScalar = new SkPDFScalar(1.0/65536);
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smallestScalar->unref(); // SkRefPtr and new both took a reference.
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SimpleCheckObjectOutput(reporter, smallestScalar.get(), "0.00001526");
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#endif
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#endif
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SkRefPtr<SkPDFString> stringSimple = new SkPDFString("test ) string ( foo");
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stringSimple->unref(); // SkRefPtr and new both took a reference.
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SimpleCheckObjectOutput(reporter, stringSimple.get(),
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"(test \\) string \\( foo)");
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SkRefPtr<SkPDFString> stringComplex =
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new SkPDFString("\ttest ) string ( foo");
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stringComplex->unref(); // SkRefPtr and new both took a reference.
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SimpleCheckObjectOutput(reporter, stringComplex.get(),
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"<0974657374202920737472696E67202820666F6F>");
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SkRefPtr<SkPDFName> name = new SkPDFName("Test name\twith#tab");
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name->unref(); // SkRefPtr and new both took a reference.
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const char expectedResult[] = "/Test#20name#09with#23tab";
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CheckObjectOutput(reporter, name.get(), expectedResult,
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strlen(expectedResult), false, false);
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// Test that we correctly handle characters with the high-bit set.
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const unsigned char highBitCString[] = {0xDE, 0xAD, 'b', 'e', 0xEF, 0};
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SkRefPtr<SkPDFName> highBitName = new SkPDFName((const char*)highBitCString);
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highBitName->unref(); // SkRefPtr and new both took a reference.
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const char highBitExpectedResult[] = "/#DE#ADbe#EF";
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CheckObjectOutput(reporter, highBitName.get(), highBitExpectedResult,
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strlen(highBitExpectedResult), false, false);
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SkRefPtr<SkPDFArray> array = new SkPDFArray;
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array->unref(); // SkRefPtr and new both took a reference.
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SimpleCheckObjectOutput(reporter, array.get(), "[]");
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array->append(int42.get());
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SimpleCheckObjectOutput(reporter, array.get(), "[42]");
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array->append(realHalf.get());
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SimpleCheckObjectOutput(reporter, array.get(), "[42 0.5]");
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SkRefPtr<SkPDFInt> int0 = new SkPDFInt(0);
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int0->unref(); // SkRefPtr and new both took a reference.
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array->append(int0.get());
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SimpleCheckObjectOutput(reporter, array.get(), "[42 0.5 0]");
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SkRefPtr<SkPDFInt> int1 = new SkPDFInt(1);
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int1->unref(); // SkRefPtr and new both took a reference.
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array->setAt(0, int1.get());
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SimpleCheckObjectOutput(reporter, array.get(), "[1 0.5 0]");
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SkRefPtr<SkPDFDict> dict = new SkPDFDict;
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dict->unref(); // SkRefPtr and new both took a reference.
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SimpleCheckObjectOutput(reporter, dict.get(), "<<>>");
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SkRefPtr<SkPDFName> n1 = new SkPDFName("n1");
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n1->unref(); // SkRefPtr and new both took a reference.
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dict->insert(n1.get(), int42.get());
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SimpleCheckObjectOutput(reporter, dict.get(), "<</n1 42\n>>");
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SkRefPtr<SkPDFName> n2 = new SkPDFName("n2");
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n2->unref(); // SkRefPtr and new both took a reference.
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SkRefPtr<SkPDFName> n3 = new SkPDFName("n3");
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n3->unref(); // SkRefPtr and new both took a reference.
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dict->insert(n2.get(), realHalf.get());
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dict->insert(n3.get(), array.get());
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SimpleCheckObjectOutput(reporter, dict.get(),
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"<</n1 42\n/n2 0.5\n/n3 [1 0.5 0]\n>>");
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TestPDFStream(reporter);
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TestCatalog(reporter);
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TestObjectRef(reporter);
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TestSubstitute(reporter);
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}
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#include "TestClassDef.h"
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DEFINE_TESTCLASS("PDFPrimitives", PDFPrimitivesTestClass, TestPDFPrimitives)
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