| /* |
| * Copyright 2010 The Android Open Source Project |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "Test.h" |
| #include "SkBitmap.h" |
| #include "SkCanvas.h" |
| #include "SkData.h" |
| #include "SkFlate.h" |
| #include "SkImageEncoder.h" |
| #include "SkMatrix.h" |
| #include "SkPDFCatalog.h" |
| #include "SkPDFDevice.h" |
| #include "SkPDFStream.h" |
| #include "SkPDFTypes.h" |
| #include "SkScalar.h" |
| #include "SkStream.h" |
| #include "SkTypes.h" |
| |
| class SkPDFTestDict : public SkPDFDict { |
| public: |
| virtual void getResources(const SkTSet<SkPDFObject*>& knownResourceObjects, |
| SkTSet<SkPDFObject*>* newResourceObjects) { |
| for (int i = 0; i < fResources.count(); i++) { |
| newResourceObjects->add(fResources[i]); |
| fResources[i]->ref(); |
| } |
| } |
| |
| void addResource(SkPDFObject* object) { |
| fResources.append(1, &object); |
| } |
| |
| private: |
| SkTDArray<SkPDFObject*> fResources; |
| }; |
| |
| #define DUMMY_TEXT "DCT compessed stream." |
| |
| static SkData* encode_to_dct_data(size_t* pixelRefOffset, const SkBitmap& bitmap) { |
| *pixelRefOffset = 0; |
| return SkData::NewWithProc(DUMMY_TEXT, sizeof(DUMMY_TEXT) - 1, NULL, NULL); |
| } |
| |
| static bool stream_equals(const SkDynamicMemoryWStream& stream, size_t offset, |
| const void* buffer, size_t len) { |
| SkAutoDataUnref data(stream.copyToData()); |
| if (offset + len > data->size()) { |
| return false; |
| } |
| return memcmp(data->bytes() + offset, buffer, len) == 0; |
| } |
| |
| static bool stream_contains(const SkDynamicMemoryWStream& stream, |
| const char* buffer) { |
| SkAutoDataUnref data(stream.copyToData()); |
| int len = strlen(buffer); // our buffer does not have EOSs. |
| |
| for (int offset = 0 ; offset < (int)data->size() - len; offset++) { |
| if (memcmp(data->bytes() + offset, buffer, len) == 0) { |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| static void CheckObjectOutput(skiatest::Reporter* reporter, SkPDFObject* obj, |
| const char* expectedData, size_t expectedSize, |
| bool indirect, bool compression) { |
| SkPDFDocument::Flags docFlags = (SkPDFDocument::Flags) 0; |
| if (!compression) { |
| docFlags = SkTBitOr(docFlags, SkPDFDocument::kFavorSpeedOverSize_Flags); |
| } |
| SkPDFCatalog catalog(docFlags); |
| size_t directSize = obj->getOutputSize(&catalog, false); |
| REPORTER_ASSERT(reporter, directSize == expectedSize); |
| |
| SkDynamicMemoryWStream buffer; |
| obj->emit(&buffer, &catalog, false); |
| REPORTER_ASSERT(reporter, directSize == buffer.getOffset()); |
| REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedData, |
| directSize)); |
| |
| if (indirect) { |
| // Indirect output. |
| static char header[] = "1 0 obj\n"; |
| static size_t headerLen = strlen(header); |
| static char footer[] = "\nendobj\n"; |
| static size_t footerLen = strlen(footer); |
| |
| catalog.addObject(obj, false); |
| |
| size_t indirectSize = obj->getOutputSize(&catalog, true); |
| REPORTER_ASSERT(reporter, |
| indirectSize == directSize + headerLen + footerLen); |
| |
| buffer.reset(); |
| obj->emit(&buffer, &catalog, true); |
| REPORTER_ASSERT(reporter, indirectSize == buffer.getOffset()); |
| REPORTER_ASSERT(reporter, stream_equals(buffer, 0, header, headerLen)); |
| REPORTER_ASSERT(reporter, stream_equals(buffer, headerLen, expectedData, |
| directSize)); |
| REPORTER_ASSERT(reporter, stream_equals(buffer, headerLen + directSize, |
| footer, footerLen)); |
| } |
| } |
| |
| static void SimpleCheckObjectOutput(skiatest::Reporter* reporter, |
| SkPDFObject* obj, |
| const char* expectedResult) { |
| CheckObjectOutput(reporter, obj, expectedResult, |
| strlen(expectedResult), true, false); |
| } |
| |
| static void TestPDFStream(skiatest::Reporter* reporter) { |
| char streamBytes[] = "Test\nFoo\tBar"; |
| SkAutoTUnref<SkMemoryStream> streamData(new SkMemoryStream( |
| streamBytes, strlen(streamBytes), true)); |
| SkAutoTUnref<SkPDFStream> stream(new SkPDFStream(streamData.get())); |
| SimpleCheckObjectOutput( |
| reporter, stream.get(), |
| "<</Length 12\n>> stream\nTest\nFoo\tBar\nendstream"); |
| stream->insert("Attribute", new SkPDFInt(42))->unref(); |
| SimpleCheckObjectOutput(reporter, stream.get(), |
| "<</Length 12\n/Attribute 42\n>> stream\n" |
| "Test\nFoo\tBar\nendstream"); |
| |
| if (SkFlate::HaveFlate()) { |
| char streamBytes2[] = "This is a longer string, so that compression " |
| "can do something with it. With shorter strings, " |
| "the short circuit logic cuts in and we end up " |
| "with an uncompressed string."; |
| SkAutoDataUnref streamData2(SkData::NewWithCopy(streamBytes2, |
| strlen(streamBytes2))); |
| SkAutoTUnref<SkPDFStream> stream(new SkPDFStream(streamData2.get())); |
| |
| SkDynamicMemoryWStream compressedByteStream; |
| SkFlate::Deflate(streamData2.get(), &compressedByteStream); |
| SkAutoDataUnref compressedData(compressedByteStream.copyToData()); |
| |
| // Check first without compression. |
| SkDynamicMemoryWStream expectedResult1; |
| expectedResult1.writeText("<</Length 167\n>> stream\n"); |
| expectedResult1.writeText(streamBytes2); |
| expectedResult1.writeText("\nendstream"); |
| SkAutoDataUnref expectedResultData1(expectedResult1.copyToData()); |
| CheckObjectOutput(reporter, stream.get(), |
| (const char*) expectedResultData1->data(), |
| expectedResultData1->size(), true, false); |
| |
| // Then again with compression. |
| SkDynamicMemoryWStream expectedResult2; |
| expectedResult2.writeText("<</Filter /FlateDecode\n/Length 116\n" |
| ">> stream\n"); |
| expectedResult2.write(compressedData->data(), compressedData->size()); |
| expectedResult2.writeText("\nendstream"); |
| SkAutoDataUnref expectedResultData2(expectedResult2.copyToData()); |
| CheckObjectOutput(reporter, stream.get(), |
| (const char*) expectedResultData2->data(), |
| expectedResultData2->size(), true, true); |
| } |
| } |
| |
| static void TestCatalog(skiatest::Reporter* reporter) { |
| SkPDFCatalog catalog((SkPDFDocument::Flags)0); |
| SkAutoTUnref<SkPDFInt> int1(new SkPDFInt(1)); |
| SkAutoTUnref<SkPDFInt> int2(new SkPDFInt(2)); |
| SkAutoTUnref<SkPDFInt> int3(new SkPDFInt(3)); |
| int1.get()->ref(); |
| SkAutoTUnref<SkPDFInt> int1Again(int1.get()); |
| |
| catalog.addObject(int1.get(), false); |
| catalog.addObject(int2.get(), false); |
| catalog.addObject(int3.get(), false); |
| |
| REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int1.get()) == 3); |
| REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int2.get()) == 3); |
| REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int3.get()) == 3); |
| |
| SkDynamicMemoryWStream buffer; |
| catalog.emitObjectNumber(&buffer, int1.get()); |
| catalog.emitObjectNumber(&buffer, int2.get()); |
| catalog.emitObjectNumber(&buffer, int3.get()); |
| catalog.emitObjectNumber(&buffer, int1Again.get()); |
| char expectedResult[] = "1 02 03 01 0"; |
| REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResult, |
| strlen(expectedResult))); |
| } |
| |
| static void TestObjectRef(skiatest::Reporter* reporter) { |
| SkAutoTUnref<SkPDFInt> int1(new SkPDFInt(1)); |
| SkAutoTUnref<SkPDFInt> int2(new SkPDFInt(2)); |
| SkAutoTUnref<SkPDFObjRef> int2ref(new SkPDFObjRef(int2.get())); |
| |
| SkPDFCatalog catalog((SkPDFDocument::Flags)0); |
| catalog.addObject(int1.get(), false); |
| catalog.addObject(int2.get(), false); |
| REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int1.get()) == 3); |
| REPORTER_ASSERT(reporter, catalog.getObjectNumberSize(int2.get()) == 3); |
| |
| char expectedResult[] = "2 0 R"; |
| SkDynamicMemoryWStream buffer; |
| int2ref->emitObject(&buffer, &catalog, false); |
| REPORTER_ASSERT(reporter, buffer.getOffset() == strlen(expectedResult)); |
| REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResult, |
| buffer.getOffset())); |
| } |
| |
| static void TestSubstitute(skiatest::Reporter* reporter) { |
| SkAutoTUnref<SkPDFTestDict> proxy(new SkPDFTestDict()); |
| SkAutoTUnref<SkPDFTestDict> stub(new SkPDFTestDict()); |
| SkAutoTUnref<SkPDFInt> int33(new SkPDFInt(33)); |
| SkAutoTUnref<SkPDFDict> stubResource(new SkPDFDict()); |
| SkAutoTUnref<SkPDFInt> int44(new SkPDFInt(44)); |
| |
| stub->insert("Value", int33.get()); |
| stubResource->insert("InnerValue", int44.get()); |
| stub->addResource(stubResource.get()); |
| |
| SkPDFCatalog catalog((SkPDFDocument::Flags)0); |
| catalog.addObject(proxy.get(), false); |
| catalog.setSubstitute(proxy.get(), stub.get()); |
| |
| SkDynamicMemoryWStream buffer; |
| proxy->emit(&buffer, &catalog, false); |
| catalog.emitSubstituteResources(&buffer, false); |
| |
| char objectResult[] = "2 0 obj\n<</Value 33\n>>\nendobj\n"; |
| REPORTER_ASSERT( |
| reporter, |
| catalog.setFileOffset(proxy.get(), 0) == strlen(objectResult)); |
| |
| char expectedResult[] = |
| "<</Value 33\n>>1 0 obj\n<</InnerValue 44\n>>\nendobj\n"; |
| REPORTER_ASSERT(reporter, buffer.getOffset() == strlen(expectedResult)); |
| REPORTER_ASSERT(reporter, stream_equals(buffer, 0, expectedResult, |
| buffer.getOffset())); |
| } |
| |
| // Create a bitmap that would be very eficiently compressed in a ZIP. |
| static void setup_bitmap(SkBitmap* bitmap, int width, int height) { |
| bitmap->setConfig(SkBitmap::kARGB_8888_Config, width, height); |
| bitmap->allocPixels(); |
| bitmap->eraseColor(SK_ColorWHITE); |
| } |
| |
| static void TestImage(skiatest::Reporter* reporter, const SkBitmap& bitmap, |
| const char* expected, bool useDCTEncoder) { |
| SkISize pageSize = SkISize::Make(bitmap.width(), bitmap.height()); |
| SkAutoTUnref<SkPDFDevice> dev(new SkPDFDevice(pageSize, pageSize, SkMatrix::I())); |
| |
| if (useDCTEncoder) { |
| dev->setDCTEncoder(encode_to_dct_data); |
| } |
| |
| SkCanvas c(dev); |
| c.drawBitmap(bitmap, 0, 0, NULL); |
| |
| SkPDFDocument doc; |
| doc.appendPage(dev); |
| |
| SkDynamicMemoryWStream stream; |
| doc.emitPDF(&stream); |
| |
| REPORTER_ASSERT(reporter, stream_contains(stream, expected)); |
| } |
| |
| static void TestUncompressed(skiatest::Reporter* reporter) { |
| SkBitmap bitmap; |
| setup_bitmap(&bitmap, 1, 1); |
| TestImage(reporter, bitmap, |
| "/Subtype /Image\n" |
| "/Width 1\n" |
| "/Height 1\n" |
| "/ColorSpace /DeviceRGB\n" |
| "/BitsPerComponent 8\n" |
| "/Length 3\n" |
| ">> stream", |
| true); |
| } |
| |
| static void TestFlateDecode(skiatest::Reporter* reporter) { |
| if (!SkFlate::HaveFlate()) { |
| return; |
| } |
| SkBitmap bitmap; |
| setup_bitmap(&bitmap, 10, 10); |
| TestImage(reporter, bitmap, |
| "/Subtype /Image\n" |
| "/Width 10\n" |
| "/Height 10\n" |
| "/ColorSpace /DeviceRGB\n" |
| "/BitsPerComponent 8\n" |
| "/Filter /FlateDecode\n" |
| "/Length 13\n" |
| ">> stream", |
| false); |
| } |
| |
| static void TestDCTDecode(skiatest::Reporter* reporter) { |
| SkBitmap bitmap; |
| setup_bitmap(&bitmap, 32, 32); |
| TestImage(reporter, bitmap, |
| "/Subtype /Image\n" |
| "/Width 32\n" |
| "/Height 32\n" |
| "/ColorSpace /DeviceRGB\n" |
| "/BitsPerComponent 8\n" |
| "/Filter /DCTDecode\n" |
| "/ColorTransform 0\n" |
| "/Length 21\n" |
| ">> stream", |
| true); |
| } |
| |
| static void TestImages(skiatest::Reporter* reporter) { |
| TestUncompressed(reporter); |
| TestFlateDecode(reporter); |
| TestDCTDecode(reporter); |
| } |
| |
| // This test used to assert without the fix submitted for |
| // http://code.google.com/p/skia/issues/detail?id=1083. |
| // SKP files might have invalid glyph ids. This test ensures they are ignored, |
| // and there is no assert on input data in Debug mode. |
| static void test_issue1083() { |
| SkISize pageSize = SkISize::Make(100, 100); |
| SkAutoTUnref<SkPDFDevice> dev(new SkPDFDevice(pageSize, pageSize, SkMatrix::I())); |
| |
| SkCanvas c(dev); |
| SkPaint paint; |
| paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding); |
| |
| uint16_t glyphID = 65000; |
| c.drawText(&glyphID, 2, 0, 0, paint); |
| |
| SkPDFDocument doc; |
| doc.appendPage(dev); |
| |
| SkDynamicMemoryWStream stream; |
| doc.emitPDF(&stream); |
| } |
| |
| DEF_TEST(PDFPrimitives, reporter) { |
| SkAutoTUnref<SkPDFInt> int42(new SkPDFInt(42)); |
| SimpleCheckObjectOutput(reporter, int42.get(), "42"); |
| |
| SkAutoTUnref<SkPDFScalar> realHalf(new SkPDFScalar(SK_ScalarHalf)); |
| SimpleCheckObjectOutput(reporter, realHalf.get(), "0.5"); |
| |
| SkAutoTUnref<SkPDFScalar> bigScalar(new SkPDFScalar(110999.75f)); |
| #if !defined(SK_ALLOW_LARGE_PDF_SCALARS) |
| SimpleCheckObjectOutput(reporter, bigScalar.get(), "111000"); |
| #else |
| SimpleCheckObjectOutput(reporter, bigScalar.get(), "110999.75"); |
| |
| SkAutoTUnref<SkPDFScalar> biggerScalar(new SkPDFScalar(50000000.1)); |
| SimpleCheckObjectOutput(reporter, biggerScalar.get(), "50000000"); |
| |
| SkAutoTUnref<SkPDFScalar> smallestScalar(new SkPDFScalar(1.0/65536)); |
| SimpleCheckObjectOutput(reporter, smallestScalar.get(), "0.00001526"); |
| #endif |
| |
| SkAutoTUnref<SkPDFString> stringSimple( |
| new SkPDFString("test ) string ( foo")); |
| SimpleCheckObjectOutput(reporter, stringSimple.get(), |
| "(test \\) string \\( foo)"); |
| SkAutoTUnref<SkPDFString> stringComplex( |
| new SkPDFString("\ttest ) string ( foo")); |
| SimpleCheckObjectOutput(reporter, stringComplex.get(), |
| "<0974657374202920737472696E67202820666F6F>"); |
| |
| SkAutoTUnref<SkPDFName> name(new SkPDFName("Test name\twith#tab")); |
| const char expectedResult[] = "/Test#20name#09with#23tab"; |
| CheckObjectOutput(reporter, name.get(), expectedResult, |
| strlen(expectedResult), false, false); |
| |
| SkAutoTUnref<SkPDFName> escapedName(new SkPDFName("A#/%()<>[]{}B")); |
| const char escapedNameExpected[] = "/A#23#2F#25#28#29#3C#3E#5B#5D#7B#7DB"; |
| CheckObjectOutput(reporter, escapedName.get(), escapedNameExpected, |
| strlen(escapedNameExpected), false, false); |
| |
| // Test that we correctly handle characters with the high-bit set. |
| const unsigned char highBitCString[] = {0xDE, 0xAD, 'b', 'e', 0xEF, 0}; |
| SkAutoTUnref<SkPDFName> highBitName( |
| new SkPDFName((const char*)highBitCString)); |
| const char highBitExpectedResult[] = "/#DE#ADbe#EF"; |
| CheckObjectOutput(reporter, highBitName.get(), highBitExpectedResult, |
| strlen(highBitExpectedResult), false, false); |
| |
| SkAutoTUnref<SkPDFArray> array(new SkPDFArray); |
| SimpleCheckObjectOutput(reporter, array.get(), "[]"); |
| array->append(int42.get()); |
| SimpleCheckObjectOutput(reporter, array.get(), "[42]"); |
| array->append(realHalf.get()); |
| SimpleCheckObjectOutput(reporter, array.get(), "[42 0.5]"); |
| SkAutoTUnref<SkPDFInt> int0(new SkPDFInt(0)); |
| array->append(int0.get()); |
| SimpleCheckObjectOutput(reporter, array.get(), "[42 0.5 0]"); |
| SkAutoTUnref<SkPDFInt> int1(new SkPDFInt(1)); |
| array->setAt(0, int1.get()); |
| SimpleCheckObjectOutput(reporter, array.get(), "[1 0.5 0]"); |
| |
| SkAutoTUnref<SkPDFDict> dict(new SkPDFDict); |
| SimpleCheckObjectOutput(reporter, dict.get(), "<<>>"); |
| SkAutoTUnref<SkPDFName> n1(new SkPDFName("n1")); |
| dict->insert(n1.get(), int42.get()); |
| SimpleCheckObjectOutput(reporter, dict.get(), "<</n1 42\n>>"); |
| SkAutoTUnref<SkPDFName> n2(new SkPDFName("n2")); |
| SkAutoTUnref<SkPDFName> n3(new SkPDFName("n3")); |
| dict->insert(n2.get(), realHalf.get()); |
| dict->insert(n3.get(), array.get()); |
| SimpleCheckObjectOutput(reporter, dict.get(), |
| "<</n1 42\n/n2 0.5\n/n3 [1 0.5 0]\n>>"); |
| |
| TestPDFStream(reporter); |
| |
| TestCatalog(reporter); |
| |
| TestObjectRef(reporter); |
| |
| TestSubstitute(reporter); |
| |
| test_issue1083(); |
| |
| TestImages(reporter); |
| } |