static void TestSubstitute(skiatest::Reporter* reporter) {
SkRefPtr<SkPDFTestDict> proxy = new SkPDFTestDict();
proxy->unref(); // SkRefPtr and new both took a reference.
SkRefPtr<SkPDFTestDict> stub = new SkPDFTestDict();
stub->unref(); // SkRefPtr and new both took a reference.
SkRefPtr<SkPDFInt> int33 = new SkPDFInt(33);
int33->unref(); // SkRefPtr and new both took a reference.
SkRefPtr<SkPDFDict> stubResource = new SkPDFDict();
stubResource->unref(); // SkRefPtr and new both took a reference.
SkRefPtr<SkPDFInt> int44 = new SkPDFInt(44);
int44->unref(); // SkRefPtr and new both took a reference.
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()));
}
// static
SkPDFGraphicState* SkPDFGraphicState::GetSMaskGraphicState(
SkPDFFormXObject* sMask, bool invert) {
// The practical chances of using the same mask more than once are unlikely
// enough that it's not worth canonicalizing.
SkAutoMutexAcquire lock(CanonicalPaintsMutex());
SkRefPtr<SkPDFDict> sMaskDict = new SkPDFDict("Mask");
sMaskDict->unref(); // SkRefPtr and new both took a reference.
sMaskDict->insertName("S", "Alpha");
sMaskDict->insert("G", new SkPDFObjRef(sMask))->unref();
SkPDFGraphicState* result = new SkPDFGraphicState;
result->fPopulated = true;
result->fSMask = true;
result->insertName("Type", "ExtGState");
result->insert("SMask", sMaskDict.get());
result->fResources.push(sMask);
sMask->ref();
if (invert) {
SkPDFObject* invertFunction = GetInvertFunction();
result->fResources.push(invertFunction);
invertFunction->ref();
sMaskDict->insert("TR", new SkPDFObjRef(invertFunction))->unref();
}
return result;
}
static void TestPDFStream(skiatest::Reporter* reporter) {
char streamBytes[] = "Test\nFoo\tBar";
SkRefPtr<SkMemoryStream> streamData = new SkMemoryStream(
streamBytes, strlen(streamBytes), true);
streamData->unref(); // SkRefPtr and new both took a reference.
SkRefPtr<SkPDFStream> stream = new SkPDFStream(streamData.get());
stream->unref(); // SkRefPtr and new both took a reference.
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)));
SkRefPtr<SkPDFStream> stream = new SkPDFStream(streamData2.get());
stream->unref(); // SkRefPtr and new both took a reference.
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);
}
}
SkPDFFormXObject::SkPDFFormXObject(SkPDFDevice* device) {
// We don't want to keep around device because we'd have two copies
// of content, so reference or copy everything we need (content and
// resources).
device->getResources(&fResources, false);
SkRefPtr<SkStream> content = device->content();
content->unref(); // SkRefPtr and content() both took a reference.
setData(content.get());
insertName("Type", "XObject");
insertName("Subtype", "Form");
insert("BBox", device->getMediaBox().get());
insert("Resources", device->getResourceDict());
// We invert the initial transform and apply that to the xobject so that
// it doesn't get applied twice. We can't just undo it because it's
// embedded in things like shaders and images.
if (!device->initialTransform().isIdentity()) {
SkMatrix inverse;
if (!device->initialTransform().invert(&inverse)) {
// The initial transform should be invertible.
SkASSERT(false);
inverse.reset();
}
insert("Matrix", SkPDFUtils::MatrixToArray(inverse))->unref();
}
// Right now SkPDFFormXObject is only used for saveLayer, which implies
// isolated blending. Do this conditionally if that changes.
SkRefPtr<SkPDFDict> group = new SkPDFDict("Group");
group->unref(); // SkRefPtr and new both took a reference.
group->insertName("S", "Transparency");
group->insert("I", new SkPDFBool(true))->unref(); // Isolated.
insert("Group", group.get());
}
SkPDFFunctionShader::SkPDFFunctionShader(SkPDFShader::State* state)
: SkPDFDict("Pattern"),
fState(state) {
SkString (*codeFunction)(const SkShader::GradientInfo& info) = NULL;
SkPoint transformPoints[2];
// Depending on the type of the gradient, we want to transform the
// coordinate space in different ways.
const SkShader::GradientInfo* info = &fState.get()->fInfo;
transformPoints[0] = info->fPoint[0];
transformPoints[1] = info->fPoint[1];
switch (fState.get()->fType) {
case SkShader::kLinear_GradientType:
codeFunction = &linearCode;
break;
case SkShader::kRadial_GradientType:
transformPoints[1] = transformPoints[0];
transformPoints[1].fX += info->fRadius[0];
codeFunction = &radialCode;
break;
case SkShader::kRadial2_GradientType: {
// Bail out if the radii are the same. Empty fResources signals
// an error and isValid will return false.
if (info->fRadius[0] == info->fRadius[1]) {
return;
}
transformPoints[1] = transformPoints[0];
SkScalar dr = info->fRadius[1] - info->fRadius[0];
transformPoints[1].fX += dr;
codeFunction = &twoPointRadialCode;
break;
}
case SkShader::kSweep_GradientType:
transformPoints[1] = transformPoints[0];
transformPoints[1].fX += 1;
codeFunction = &sweepCode;
break;
case SkShader::kColor_GradientType:
case SkShader::kNone_GradientType:
default:
return;
}
// Move any scaling (assuming a unit gradient) or translation
// (and rotation for linear gradient), of the final gradient from
// info->fPoints to the matrix (updating bbox appropriately). Now
// the gradient can be drawn on on the unit segment.
SkMatrix mapperMatrix;
unitToPointsMatrix(transformPoints, &mapperMatrix);
SkMatrix finalMatrix = fState.get()->fCanvasTransform;
finalMatrix.preConcat(mapperMatrix);
finalMatrix.preConcat(fState.get()->fShaderTransform);
SkRect bbox;
bbox.set(fState.get()->fBBox);
transformBBox(finalMatrix, &bbox);
SkRefPtr<SkPDFArray> domain = new SkPDFArray;
domain->unref(); // SkRefPtr and new both took a reference.
domain->reserve(4);
domain->appendScalar(bbox.fLeft);
domain->appendScalar(bbox.fRight);
domain->appendScalar(bbox.fTop);
domain->appendScalar(bbox.fBottom);
SkString functionCode;
// The two point radial gradient further references fState.get()->fInfo
// in translating from x, y coordinates to the t parameter. So, we have
// to transform the points and radii according to the calculated matrix.
if (fState.get()->fType == SkShader::kRadial2_GradientType) {
SkShader::GradientInfo twoPointRadialInfo = *info;
SkMatrix inverseMapperMatrix;
mapperMatrix.invert(&inverseMapperMatrix);
inverseMapperMatrix.mapPoints(twoPointRadialInfo.fPoint, 2);
twoPointRadialInfo.fRadius[0] =
inverseMapperMatrix.mapRadius(info->fRadius[0]);
twoPointRadialInfo.fRadius[1] =
inverseMapperMatrix.mapRadius(info->fRadius[1]);
functionCode = codeFunction(twoPointRadialInfo);
} else {
functionCode = codeFunction(*info);
}
SkRefPtr<SkPDFStream> function = makePSFunction(functionCode, domain.get());
// Pass one reference to fResources, SkRefPtr and new both took a reference.
fResources.push(function.get());
SkRefPtr<SkPDFDict> pdfShader = new SkPDFDict;
pdfShader->unref(); // SkRefPtr and new both took a reference.
pdfShader->insertInt("ShadingType", 1);
pdfShader->insertName("ColorSpace", "DeviceRGB");
pdfShader->insert("Domain", domain.get());
pdfShader->insert("Function", new SkPDFObjRef(function.get()))->unref();
insertInt("PatternType", 2);
insert("Matrix", SkPDFUtils::MatrixToArray(finalMatrix))->unref();
insert("Shading", pdfShader.get());
}
const SkRefPtr<SkPDFDict>& SkPDFDevice::getResourceDict() {
if (fResourceDict.get() == NULL) {
fResourceDict = new SkPDFDict;
fResourceDict->unref(); // SkRefPtr and new both took a reference.
if (fGraphicStateResources.count()) {
SkRefPtr<SkPDFDict> extGState = new SkPDFDict();
extGState->unref(); // SkRefPtr and new both took a reference.
for (int i = 0; i < fGraphicStateResources.count(); i++) {
SkString nameString("G");
nameString.appendS32(i);
extGState->insert(
nameString.c_str(),
new SkPDFObjRef(fGraphicStateResources[i]))->unref();
}
fResourceDict->insert("ExtGState", extGState.get());
}
if (fXObjectResources.count()) {
SkRefPtr<SkPDFDict> xObjects = new SkPDFDict();
xObjects->unref(); // SkRefPtr and new both took a reference.
for (int i = 0; i < fXObjectResources.count(); i++) {
SkString nameString("X");
nameString.appendS32(i);
xObjects->insert(
nameString.c_str(),
new SkPDFObjRef(fXObjectResources[i]))->unref();
}
fResourceDict->insert("XObject", xObjects.get());
}
if (fFontResources.count()) {
SkRefPtr<SkPDFDict> fonts = new SkPDFDict();
fonts->unref(); // SkRefPtr and new both took a reference.
for (int i = 0; i < fFontResources.count(); i++) {
SkString nameString("F");
nameString.appendS32(i);
fonts->insert(nameString.c_str(),
new SkPDFObjRef(fFontResources[i]))->unref();
}
fResourceDict->insert("Font", fonts.get());
}
if (fShaderResources.count()) {
SkRefPtr<SkPDFDict> patterns = new SkPDFDict();
patterns->unref(); // SkRefPtr and new both took a reference.
for (int i = 0; i < fShaderResources.count(); i++) {
SkString nameString("P");
nameString.appendS32(i);
patterns->insert(nameString.c_str(),
new SkPDFObjRef(fShaderResources[i]))->unref();
}
fResourceDict->insert("Pattern", patterns.get());
}
// For compatibility, add all proc sets (only used for output to PS
// devices).
const char procs[][7] = {"PDF", "Text", "ImageB", "ImageC", "ImageI"};
SkRefPtr<SkPDFArray> procSets = new SkPDFArray();
procSets->unref(); // SkRefPtr and new both took a reference.
procSets->reserve(SK_ARRAY_COUNT(procs));
for (size_t i = 0; i < SK_ARRAY_COUNT(procs); i++)
procSets->append(new SkPDFName(procs[i]))->unref();
fResourceDict->insert("ProcSet", procSets.get());
}
return fResourceDict;
}
static void TestPDFPrimitives(skiatest::Reporter* reporter) {
SkRefPtr<SkPDFInt> int42 = new SkPDFInt(42);
int42->unref(); // SkRefPtr and new both took a reference.
SimpleCheckObjectOutput(reporter, int42.get(), "42");
SkRefPtr<SkPDFScalar> realHalf = new SkPDFScalar(SK_ScalarHalf);
realHalf->unref(); // SkRefPtr and new both took a reference.
SimpleCheckObjectOutput(reporter, realHalf.get(), "0.5");
#if defined(SK_SCALAR_IS_FLOAT)
SkRefPtr<SkPDFScalar> bigScalar = new SkPDFScalar(110999.75f);
bigScalar->unref(); // SkRefPtr and new both took a reference.
#if !defined(SK_ALLOW_LARGE_PDF_SCALARS)
SimpleCheckObjectOutput(reporter, bigScalar.get(), "111000");
#else
SimpleCheckObjectOutput(reporter, bigScalar.get(), "110999.75");
SkRefPtr<SkPDFScalar> biggerScalar = new SkPDFScalar(50000000.1);
biggerScalar->unref(); // SkRefPtr and new both took a reference.
SimpleCheckObjectOutput(reporter, biggerScalar.get(), "50000000");
SkRefPtr<SkPDFScalar> smallestScalar = new SkPDFScalar(1.0/65536);
smallestScalar->unref(); // SkRefPtr and new both took a reference.
SimpleCheckObjectOutput(reporter, smallestScalar.get(), "0.00001526");
#endif
#endif
SkRefPtr<SkPDFString> stringSimple = new SkPDFString("test ) string ( foo");
stringSimple->unref(); // SkRefPtr and new both took a reference.
SimpleCheckObjectOutput(reporter, stringSimple.get(),
"(test \\) string \\( foo)");
SkRefPtr<SkPDFString> stringComplex =
new SkPDFString("\ttest ) string ( foo");
stringComplex->unref(); // SkRefPtr and new both took a reference.
SimpleCheckObjectOutput(reporter, stringComplex.get(),
"<0974657374202920737472696E67202820666F6F>");
SkRefPtr<SkPDFName> name = new SkPDFName("Test name\twith#tab");
name->unref(); // SkRefPtr and new both took a reference.
const char expectedResult[] = "/Test#20name#09with#23tab";
CheckObjectOutput(reporter, name.get(), expectedResult,
strlen(expectedResult), false, false);
SkRefPtr<SkPDFName> escapedName = new SkPDFName("A#/%()<>[]{}B");
escapedName->unref(); // SkRefPtr and new both took a reference.
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};
SkRefPtr<SkPDFName> highBitName = new SkPDFName((const char*)highBitCString);
highBitName->unref(); // SkRefPtr and new both took a reference.
const char highBitExpectedResult[] = "/#DE#ADbe#EF";
CheckObjectOutput(reporter, highBitName.get(), highBitExpectedResult,
strlen(highBitExpectedResult), false, false);
SkRefPtr<SkPDFArray> array = new SkPDFArray;
array->unref(); // SkRefPtr and new both took a reference.
SimpleCheckObjectOutput(reporter, array.get(), "[]");
array->append(int42.get());
SimpleCheckObjectOutput(reporter, array.get(), "[42]");
array->append(realHalf.get());
SimpleCheckObjectOutput(reporter, array.get(), "[42 0.5]");
SkRefPtr<SkPDFInt> int0 = new SkPDFInt(0);
int0->unref(); // SkRefPtr and new both took a reference.
array->append(int0.get());
SimpleCheckObjectOutput(reporter, array.get(), "[42 0.5 0]");
SkRefPtr<SkPDFInt> int1 = new SkPDFInt(1);
int1->unref(); // SkRefPtr and new both took a reference.
array->setAt(0, int1.get());
SimpleCheckObjectOutput(reporter, array.get(), "[1 0.5 0]");
SkRefPtr<SkPDFDict> dict = new SkPDFDict;
dict->unref(); // SkRefPtr and new both took a reference.
SimpleCheckObjectOutput(reporter, dict.get(), "<<>>");
SkRefPtr<SkPDFName> n1 = new SkPDFName("n1");
n1->unref(); // SkRefPtr and new both took a reference.
dict->insert(n1.get(), int42.get());
SimpleCheckObjectOutput(reporter, dict.get(), "<</n1 42\n>>");
SkRefPtr<SkPDFName> n2 = new SkPDFName("n2");
n2->unref(); // SkRefPtr and new both took a reference.
SkRefPtr<SkPDFName> n3 = new SkPDFName("n3");
n3->unref(); // SkRefPtr and new both took a reference.
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);
}
