static void TestWStream(skiatest::Reporter* reporter) {
SkDynamicMemoryWStream ds;
const char s[] = "abcdefghijklmnopqrstuvwxyz";
int i;
for (i = 0; i < 100; i++) {
REPORTER_ASSERT(reporter, ds.write(s, 26));
}
REPORTER_ASSERT(reporter, ds.bytesWritten() == 100 * 26);
char* dst = new char[100 * 26 + 1];
dst[100*26] = '*';
ds.copyTo(dst);
REPORTER_ASSERT(reporter, dst[100*26] == '*');
for (i = 0; i < 100; i++) {
REPORTER_ASSERT(reporter, memcmp(&dst[i * 26], s, 26) == 0);
}
{
std::unique_ptr<SkStreamAsset> stream(ds.detachAsStream());
REPORTER_ASSERT(reporter, 100 * 26 == stream->getLength());
REPORTER_ASSERT(reporter, ds.bytesWritten() == 0);
test_loop_stream(reporter, stream.get(), s, 26, 100);
std::unique_ptr<SkStreamAsset> stream2(stream->duplicate());
test_loop_stream(reporter, stream2.get(), s, 26, 100);
std::unique_ptr<SkStreamAsset> stream3(stream->fork());
REPORTER_ASSERT(reporter, stream3->isAtEnd());
char tmp;
size_t bytes = stream->read(&tmp, 1);
REPORTER_ASSERT(reporter, 0 == bytes);
stream3->rewind();
test_loop_stream(reporter, stream3.get(), s, 26, 100);
}
for (i = 0; i < 100; i++) {
REPORTER_ASSERT(reporter, ds.write(s, 26));
}
REPORTER_ASSERT(reporter, ds.bytesWritten() == 100 * 26);
{
// Test that this works after a snapshot.
std::unique_ptr<SkStreamAsset> stream(ds.detachAsStream());
REPORTER_ASSERT(reporter, ds.bytesWritten() == 0);
test_loop_stream(reporter, stream.get(), s, 26, 100);
std::unique_ptr<SkStreamAsset> stream2(stream->duplicate());
test_loop_stream(reporter, stream2.get(), s, 26, 100);
}
delete[] dst;
SkString tmpDir = skiatest::GetTmpDir();
if (!tmpDir.isEmpty()) {
test_filestreams(reporter, tmpDir.c_str());
}
}
void SkPDFStream::emitObject(SkWStream* stream,
const SkPDFObjNumMap& objNumMap,
const SkPDFSubstituteMap& substitutes) {
if (fState == kUnused_State) {
fState = kNoCompression_State;
SkDynamicMemoryWStream compressedData;
SkAssertResult(
SkFlate::Deflate(fDataStream.get(), &compressedData));
SkAssertResult(fDataStream->rewind());
if (compressedData.getOffset() < this->dataSize()) {
SkAutoTDelete<SkStream> compressed(
compressedData.detachAsStream());
this->setData(compressed.get());
this->insertName("Filter", "FlateDecode");
}
fState = kCompressed_State;
this->insertInt("Length", this->dataSize());
}
this->INHERITED::emitObject(stream, objNumMap, substitutes);
stream->writeText(" stream\n");
stream->writeStream(fDataStream.get(), fDataStream->getLength());
SkAssertResult(fDataStream->rewind());
stream->writeText("\nendstream");
}
static void TestPackedUInt(skiatest::Reporter* reporter) {
// we know that packeduint tries to write 1, 2 or 4 bytes for the length,
// so we test values around each of those transitions (and a few others)
const size_t sizes[] = {
0, 1, 2, 0xFC, 0xFD, 0xFE, 0xFF, 0x100, 0x101, 32767, 32768, 32769,
0xFFFD, 0xFFFE, 0xFFFF, 0x10000, 0x10001,
0xFFFFFD, 0xFFFFFE, 0xFFFFFF, 0x1000000, 0x1000001,
0x7FFFFFFE, 0x7FFFFFFF, 0x80000000, 0x80000001, 0xFFFFFFFE, 0xFFFFFFFF
};
size_t i;
SkDynamicMemoryWStream wstream;
for (i = 0; i < SK_ARRAY_COUNT(sizes); ++i) {
bool success = wstream.writePackedUInt(sizes[i]);
REPORTER_ASSERT(reporter, success);
}
std::unique_ptr<SkStreamAsset> rstream(wstream.detachAsStream());
for (i = 0; i < SK_ARRAY_COUNT(sizes); ++i) {
size_t n;
if (!rstream->readPackedUInt(&n)) {
ERRORF(reporter, "[%d] sizes:%x could not be read\n", i, sizes[i]);
}
if (sizes[i] != n) {
ERRORF(reporter, "[%d] sizes:%x != n:%x\n", i, sizes[i], n);
}
}
}
DEF_TEST(StreamPeek_BlockMemoryStream, rep) {
const static int kSeed = 1234;
SkRandom valueSource(kSeed);
SkRandom rand(kSeed << 1);
uint8_t buffer[4096];
SkDynamicMemoryWStream dynamicMemoryWStream;
for (int i = 0; i < 32; ++i) {
// Randomize the length of the blocks.
size_t size = rand.nextRangeU(1, sizeof(buffer));
for (size_t j = 0; j < size; ++j) {
buffer[j] = valueSource.nextU() & 0xFF;
}
dynamicMemoryWStream.write(buffer, size);
}
SkAutoTDelete<SkStreamAsset> asset(dynamicMemoryWStream.detachAsStream());
SkAutoTUnref<SkData> expected(SkData::NewUninitialized(asset->getLength()));
uint8_t* expectedPtr = static_cast<uint8_t*>(expected->writable_data());
valueSource.setSeed(kSeed); // reseed.
// We want the exact same same "random" string of numbers to put
// in expected. i.e.: don't rely on SkDynamicMemoryStream to work
// correctly while we are testing SkDynamicMemoryStream.
for (size_t i = 0; i < asset->getLength(); ++i) {
expectedPtr[i] = valueSource.nextU() & 0xFF;
}
stream_peek_test(rep, asset, expected);
}
static void serialize_and_compare_typeface(sk_sp<SkTypeface> typeface, const char* text,
skiatest::Reporter* reporter)
{
// Create a paint with the typeface.
SkPaint paint;
paint.setColor(SK_ColorGRAY);
paint.setTextSize(SkIntToScalar(30));
paint.setTypeface(std::move(typeface));
// Paint some text.
SkPictureRecorder recorder;
SkIRect canvasRect = SkIRect::MakeWH(kBitmapSize, kBitmapSize);
SkCanvas* canvas = recorder.beginRecording(SkIntToScalar(canvasRect.width()),
SkIntToScalar(canvasRect.height()),
nullptr, 0);
canvas->drawColor(SK_ColorWHITE);
canvas->drawText(text, 2, 24, 32, paint);
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
// Serlialize picture and create its clone from stream.
SkDynamicMemoryWStream stream;
picture->serialize(&stream);
std::unique_ptr<SkStream> inputStream(stream.detachAsStream());
sk_sp<SkPicture> loadedPicture(SkPicture::MakeFromStream(inputStream.get()));
// Draw both original and clone picture and compare bitmaps -- they should be identical.
SkBitmap origBitmap = draw_picture(*picture);
SkBitmap destBitmap = draw_picture(*loadedPicture);
compare_bitmaps(reporter, origBitmap, destBitmap);
}
// Test that image encoding failures do not break picture serialization/deserialization.
DEF_TEST(Image_Serialize_Encoding_Failure, reporter) {
SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(100, 100));
surface->getCanvas()->clear(SK_ColorGREEN);
SkAutoTUnref<SkImage> image(surface->newImageSnapshot());
REPORTER_ASSERT(reporter, image);
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(100, 100);
canvas->drawImage(image, 0, 0);
SkAutoTUnref<SkPicture> picture(recorder.endRecording());
REPORTER_ASSERT(reporter, picture);
REPORTER_ASSERT(reporter, picture->approximateOpCount() > 0);
MockSerializer emptySerializer([]() -> SkData* { return SkData::NewEmpty(); });
MockSerializer nullSerializer([]() -> SkData* { return nullptr; });
MockSerializer* serializers[] = { &emptySerializer, &nullSerializer };
for (size_t i = 0; i < SK_ARRAY_COUNT(serializers); ++i) {
SkDynamicMemoryWStream wstream;
REPORTER_ASSERT(reporter, !serializers[i]->didEncode());
picture->serialize(&wstream, serializers[i]);
REPORTER_ASSERT(reporter, serializers[i]->didEncode());
SkAutoTDelete<SkStream> rstream(wstream.detachAsStream());
SkAutoTUnref<SkPicture> deserialized(SkPicture::CreateFromStream(rstream));
REPORTER_ASSERT(reporter, deserialized);
REPORTER_ASSERT(reporter, deserialized->approximateOpCount() > 0);
}
}
DEF_TEST(SkDeflateWStream, r) {
SkRandom random(123456);
for (int i = 0; i < 50; ++i) {
uint32_t size = random.nextULessThan(10000);
SkAutoTMalloc<uint8_t> buffer(size);
for (uint32_t j = 0; j < size; ++j) {
buffer[j] = random.nextU() & 0xff;
}
SkDynamicMemoryWStream dynamicMemoryWStream;
{
SkDeflateWStream deflateWStream(&dynamicMemoryWStream);
uint32_t j = 0;
while (j < size) {
uint32_t writeSize =
SkTMin(size - j, random.nextRangeU(1, 400));
if (!deflateWStream.write(&buffer[j], writeSize)) {
ERRORF(r, "something went wrong.");
return;
}
j += writeSize;
}
}
SkAutoTDelete<SkStreamAsset> compressed(
dynamicMemoryWStream.detachAsStream());
SkAutoTDelete<SkStreamAsset> decompressed(stream_inflate(compressed));
if (decompressed->getLength() != size) {
ERRORF(r, "Decompression failed to get right size [%d]."
" %u != %u", i, (unsigned)(decompressed->getLength()),
(unsigned)size);
SkString s = SkStringPrintf("/tmp/deftst_compressed_%d", i);
SkFILEWStream o(s.c_str());
o.writeStream(compressed.get(), compressed->getLength());
compressed->rewind();
s = SkStringPrintf("/tmp/deftst_input_%d", i);
SkFILEWStream o2(s.c_str());
o2.write(&buffer[0], size);
continue;
}
uint32_t minLength = SkTMin(size,
(uint32_t)(decompressed->getLength()));
for (uint32_t i = 0; i < minLength; ++i) {
uint8_t c;
SkDEBUGCODE(size_t rb =)decompressed->read(&c, sizeof(uint8_t));
SkASSERT(sizeof(uint8_t) == rb);
if (buffer[i] != c) {
ERRORF(r, "Decompression failed at byte %u.", (unsigned)i);
break;
}
}
}
}
/**
* Creates a content stream which fills the pattern P0 across bounds.
* @param gsIndex A graphics state resource index to apply, or <0 if no
* graphics state to apply.
*/
static SkStream* create_pattern_fill_content(int gsIndex, SkRect& bounds) {
SkDynamicMemoryWStream content;
if (gsIndex >= 0) {
SkPDFUtils::ApplyGraphicState(gsIndex, &content);
}
SkPDFUtils::ApplyPattern(0, &content);
SkPDFUtils::AppendRectangle(bounds, &content);
SkPDFUtils::PaintPath(SkPaint::kFill_Style, SkPath::kEvenOdd_FillType,
&content);
return content.detachAsStream();
}
static SkString emit_to_string(T& obj, Catalog* catPtr = nullptr) {
Catalog catalog;
SkDynamicMemoryWStream buffer;
if (!catPtr) {
catPtr = &catalog;
}
obj.emitObject(&buffer, catPtr->numbers, catPtr->substitutes);
SkAutoTDelete<SkStreamAsset> asset(buffer.detachAsStream());
SkString tmp(asset->getLength());
asset->read(tmp.writable_str(), asset->getLength());
return tmp;
}
void draw(SkCanvas* canvas) {
SkPictureRecorder recorder;
SkCanvas* pictureCanvas = recorder.beginRecording({0, 0, 256, 256});
SkPaint paint;
pictureCanvas->drawRect(SkRect::MakeWH(200, 200), paint);
paint.setColor(SK_ColorWHITE);
pictureCanvas->drawRect(SkRect::MakeLTRB(20, 20, 180, 180), paint);
sk_sp<SkPicture> picture = recorder.finishRecordingAsPicture();
SkDynamicMemoryWStream writableStream;
picture->serialize(&writableStream);
std::unique_ptr<SkStreamAsset> readableStream = writableStream.detachAsStream();
sk_sp<SkPicture> copy = SkPicture::MakeFromStream(readableStream.get());
copy->playback(canvas);
}
static void emit_image_xobject(SkWStream* stream,
const SkImage* image,
bool alpha,
const sk_sp<SkPDFObject>& smask,
const SkPDFObjNumMap& objNumMap,
const SkPDFSubstituteMap& substitutes) {
SkBitmap bitmap;
image_get_ro_pixels(image, &bitmap); // TODO(halcanary): test
SkAutoLockPixels autoLockPixels(bitmap); // with malformed images.
// Write to a temporary buffer to get the compressed length.
SkDynamicMemoryWStream buffer;
SkDeflateWStream deflateWStream(&buffer);
if (alpha) {
bitmap_alpha_to_a8(bitmap, &deflateWStream);
} else {
bitmap_to_pdf_pixels(bitmap, &deflateWStream);
}
deflateWStream.finalize(); // call before detachAsStream().
std::unique_ptr<SkStreamAsset> asset(buffer.detachAsStream());
SkPDFDict pdfDict("XObject");
pdfDict.insertName("Subtype", "Image");
pdfDict.insertInt("Width", bitmap.width());
pdfDict.insertInt("Height", bitmap.height());
if (alpha) {
pdfDict.insertName("ColorSpace", "DeviceGray");
} else if (bitmap.colorType() == kIndex_8_SkColorType) {
SkASSERT(1 == pdf_color_component_count(bitmap.colorType()));
pdfDict.insertObject("ColorSpace",
make_indexed_color_space(bitmap.getColorTable(),
bitmap.alphaType()));
} else if (1 == pdf_color_component_count(bitmap.colorType())) {
pdfDict.insertName("ColorSpace", "DeviceGray");
} else {
pdfDict.insertName("ColorSpace", "DeviceRGB");
}
if (smask) {
pdfDict.insertObjRef("SMask", smask);
}
pdfDict.insertInt("BitsPerComponent", 8);
pdfDict.insertName("Filter", "FlateDecode");
pdfDict.insertInt("Length", asset->getLength());
pdfDict.emitObject(stream, objNumMap, substitutes);
pdf_stream_begin(stream);
stream->writeStream(asset.get(), asset->getLength());
pdf_stream_end(stream);
}
void SerializeTask::draw() {
SkPicture recorded;
RecordPicture(fGM.get(), &recorded);
SkDynamicMemoryWStream wStream;
recorded.serialize(&wStream, &trivial_bitmap_encoder);
SkAutoTUnref<SkStream> rStream(wStream.detachAsStream());
SkAutoTUnref<SkPicture> reconstructed(SkPicture::CreateFromStream(rStream));
SkBitmap bitmap;
SetupBitmap(fReference.config(), fGM.get(), &bitmap);
DrawPicture(reconstructed, &bitmap);
if (!BitmapsEqual(bitmap, fReference)) {
this->fail();
this->spawnChild(SkNEW_ARGS(WriteTask, (*this, bitmap)));
}
}
DEF_TEST(Picture_preserveCullRect, r) {
SkPictureRecorder recorder;
SkCanvas* c = recorder.beginRecording(SkRect::MakeLTRB(1, 2, 3, 4));
c->clear(SK_ColorCYAN);
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
SkDynamicMemoryWStream wstream;
picture->serialize(&wstream);
SkAutoTDelete<SkStream> rstream(wstream.detachAsStream());
sk_sp<SkPicture> deserializedPicture(SkPicture::MakeFromStream(rstream));
REPORTER_ASSERT(r, deserializedPicture != nullptr);
REPORTER_ASSERT(r, deserializedPicture->cullRect().left() == 1);
REPORTER_ASSERT(r, deserializedPicture->cullRect().top() == 2);
REPORTER_ASSERT(r, deserializedPicture->cullRect().right() == 3);
REPORTER_ASSERT(r, deserializedPicture->cullRect().bottom() == 4);
}
void PDFDefaultBitmap::emitObject(SkWStream* stream,
const SkPDFObjNumMap& objNumMap,
const SkPDFSubstituteMap& substitutes) const {
SkAutoLockPixels autoLockPixels(fBitmap);
SkASSERT(fBitmap.colorType() != kIndex_8_SkColorType ||
fBitmap.getColorTable());
// Write to a temporary buffer to get the compressed length.
SkDynamicMemoryWStream buffer;
SkDeflateWStream deflateWStream(&buffer);
bitmap_to_pdf_pixels(fBitmap, &deflateWStream);
deflateWStream.finalize(); // call before detachAsStream().
SkAutoTDelete<SkStreamAsset> asset(buffer.detachAsStream());
SkPDFDict pdfDict("XObject");
pdfDict.insertName("Subtype", "Image");
pdfDict.insertInt("Width", fBitmap.width());
pdfDict.insertInt("Height", fBitmap.height());
if (fBitmap.colorType() == kIndex_8_SkColorType) {
SkASSERT(1 == pdf_color_component_count(fBitmap.colorType()));
pdfDict.insertObject("ColorSpace",
make_indexed_color_space(fBitmap.getColorTable()));
} else if (1 == pdf_color_component_count(fBitmap.colorType())) {
pdfDict.insertName("ColorSpace", "DeviceGray");
} else {
pdfDict.insertName("ColorSpace", "DeviceRGB");
}
pdfDict.insertInt("BitsPerComponent", 8);
if (fSMask) {
pdfDict.insertObjRef("SMask", SkRef(fSMask.get()));
}
pdfDict.insertName("Filter", "FlateDecode");
pdfDict.insertInt("Length", asset->getLength());
pdfDict.emitObject(stream, objNumMap, substitutes);
pdf_stream_begin(stream);
stream->writeStream(asset.get(), asset->getLength());
pdf_stream_end(stream);
}
bool SkPDFStream::populate(SkPDFCatalog* catalog) {
#ifdef SK_NO_FLATE
if (fState == kUnused_State) {
fState = kNoCompression_State;
insertInt("Length", this->dataSize());
}
return true;
#else // !SK_NO_FLATE
if (fState == kUnused_State) {
fState = kNoCompression_State;
SkDynamicMemoryWStream compressedData;
SkAssertResult(
SkFlate::Deflate(fDataStream.get(), &compressedData));
SkAssertResult(fDataStream->rewind());
if (compressedData.getOffset() < this->dataSize()) {
SkAutoTDelete<SkStream> compressed(
compressedData.detachAsStream());
this->setData(compressed.get());
insertName("Filter", "FlateDecode");
}
fState = kCompressed_State;
insertInt("Length", this->dataSize());
}
else if (fState == kNoCompression_State) {
if (!fSubstitute.get()) {
fSubstitute.reset(new SkPDFStream(*this));
catalog->setSubstitute(this, fSubstitute.get());
}
return false;
}
return true;
#endif // SK_NO_FLATE
}
static void Run(Task* task) {
SkString name = task->src->name();
// We'll skip drawing this Src/Sink pair if:
// - the Src vetoes the Sink;
// - this Src / Sink combination is on the blacklist;
// - it's a dry run.
SkString note(task->src->veto(task->sink->flags()) ? " (veto)" : "");
SkString whyBlacklisted = is_blacklisted(task->sink.tag, task->src.tag,
task->src.options, name.c_str());
if (!whyBlacklisted.isEmpty()) {
note.appendf(" (--blacklist %s)", whyBlacklisted.c_str());
}
SkString log;
WallTimer timer;
timer.start();
if (!FLAGS_dryRun && note.isEmpty()) {
SkBitmap bitmap;
SkDynamicMemoryWStream stream;
if (FLAGS_pre_log) {
SkDebugf("\nRunning %s->%s", name.c_str(), task->sink.tag);
}
start(task->sink.tag, task->src.tag, task->src.options, name.c_str());
Error err = task->sink->draw(*task->src, &bitmap, &stream, &log);
if (!err.isEmpty()) {
timer.end();
if (err.isFatal()) {
fail(SkStringPrintf("%s %s %s %s: %s",
task->sink.tag,
task->src.tag,
task->src.options,
name.c_str(),
err.c_str()));
} else {
note.appendf(" (skipped: %s)", err.c_str());
}
done(timer.fWall, task->sink.tag, task->src.tag, task->src.options,
name, note, log);
return;
}
SkAutoTDelete<SkStreamAsset> data(stream.detachAsStream());
SkString md5;
if (!FLAGS_writePath.isEmpty() || !FLAGS_readPath.isEmpty()) {
SkMD5 hash;
if (data->getLength()) {
hash.writeStream(data, data->getLength());
data->rewind();
} else {
// If we're BGRA (Linux, Windows), swizzle over to RGBA (Mac, Android).
// This helps eliminate multiple 0-pixel-diff hashes on gold.skia.org.
// (Android's general slow speed breaks the tie arbitrarily in RGBA's favor.)
// We might consider promoting 565 to RGBA too.
if (bitmap.colorType() == kBGRA_8888_SkColorType) {
SkBitmap swizzle;
SkAssertResult(bitmap.copyTo(&swizzle, kRGBA_8888_SkColorType));
hash.write(swizzle.getPixels(), swizzle.getSize());
} else {
hash.write(bitmap.getPixels(), bitmap.getSize());
}
}
SkMD5::Digest digest;
hash.finish(digest);
for (int i = 0; i < 16; i++) {
md5.appendf("%02x", digest.data[i]);
}
}
if (!FLAGS_readPath.isEmpty() &&
!gGold.contains(Gold(task->sink.tag, task->src.tag,
task->src.options, name, md5))) {
fail(SkStringPrintf("%s not found for %s %s %s %s in %s",
md5.c_str(),
task->sink.tag,
task->src.tag,
task->src.options,
name.c_str(),
FLAGS_readPath[0]));
}
if (!FLAGS_writePath.isEmpty()) {
const char* ext = task->sink->fileExtension();
if (data->getLength()) {
WriteToDisk(*task, md5, ext, data, data->getLength(), nullptr);
SkASSERT(bitmap.drawsNothing());
} else if (!bitmap.drawsNothing()) {
WriteToDisk(*task, md5, ext, nullptr, 0, &bitmap);
}
}
}
timer.end();
done(timer.fWall, task->sink.tag, task->src.tag, task->src.options, name, note, log);
}
static sk_sp<SkPicture> copy_picture_via_serialization(SkPicture* src) {
SkDynamicMemoryWStream wstream;
src->serialize(&wstream);
std::unique_ptr<SkStreamAsset> rstream(wstream.detachAsStream());
return SkPicture::MakeFromStream(rstream.get());
}
static SkPDFIndirectReference make_function_shader(SkPDFDocument* doc,
const SkPDFGradientShader::Key& state) {
SkPoint transformPoints[2];
const SkShader::GradientInfo& info = state.fInfo;
SkMatrix finalMatrix = state.fCanvasTransform;
finalMatrix.preConcat(state.fShaderTransform);
bool doStitchFunctions = (state.fType == SkShader::kLinear_GradientType ||
state.fType == SkShader::kRadial_GradientType ||
state.fType == SkShader::kConical_GradientType) &&
(SkTileMode)info.fTileMode == SkTileMode::kClamp &&
!finalMatrix.hasPerspective();
int32_t shadingType = 1;
auto pdfShader = SkPDFMakeDict();
// The two point radial gradient further references
// state.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 (doStitchFunctions) {
pdfShader->insertObject("Function", gradientStitchCode(info));
shadingType = (state.fType == SkShader::kLinear_GradientType) ? 2 : 3;
auto extend = SkPDFMakeArray();
extend->reserve(2);
extend->appendBool(true);
extend->appendBool(true);
pdfShader->insertObject("Extend", std::move(extend));
std::unique_ptr<SkPDFArray> coords;
if (state.fType == SkShader::kConical_GradientType) {
SkScalar r1 = info.fRadius[0];
SkScalar r2 = info.fRadius[1];
SkPoint pt1 = info.fPoint[0];
SkPoint pt2 = info.fPoint[1];
FixUpRadius(pt1, r1, pt2, r2);
coords = SkPDFMakeArray(pt1.x(),
pt1.y(),
r1,
pt2.x(),
pt2.y(),
r2);
} else if (state.fType == SkShader::kRadial_GradientType) {
const SkPoint& pt1 = info.fPoint[0];
coords = SkPDFMakeArray(pt1.x(),
pt1.y(),
0,
pt1.x(),
pt1.y(),
info.fRadius[0]);
} else {
const SkPoint& pt1 = info.fPoint[0];
const SkPoint& pt2 = info.fPoint[1];
coords = SkPDFMakeArray(pt1.x(),
pt1.y(),
pt2.x(),
pt2.y());
}
pdfShader->insertObject("Coords", std::move(coords));
} else {
// Depending on the type of the gradient, we want to transform the
// coordinate space in different ways.
transformPoints[0] = info.fPoint[0];
transformPoints[1] = info.fPoint[1];
switch (state.fType) {
case SkShader::kLinear_GradientType:
break;
case SkShader::kRadial_GradientType:
transformPoints[1] = transformPoints[0];
transformPoints[1].fX += info.fRadius[0];
break;
case SkShader::kConical_GradientType: {
transformPoints[1] = transformPoints[0];
transformPoints[1].fX += SK_Scalar1;
break;
}
case SkShader::kSweep_GradientType:
transformPoints[1] = transformPoints[0];
transformPoints[1].fX += SK_Scalar1;
break;
case SkShader::kColor_GradientType:
case SkShader::kNone_GradientType:
default:
return SkPDFIndirectReference();
}
// 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;
unit_to_points_matrix(transformPoints, &mapperMatrix);
finalMatrix.preConcat(mapperMatrix);
// Preserves as much as possible in the final matrix, and only removes
// the perspective. The inverse of the perspective is stored in
// perspectiveInverseOnly matrix and has 3 useful numbers
// (p0, p1, p2), while everything else is either 0 or 1.
// In this way the shader will handle it eficiently, with minimal code.
SkMatrix perspectiveInverseOnly = SkMatrix::I();
if (finalMatrix.hasPerspective()) {
if (!split_perspective(finalMatrix,
&finalMatrix, &perspectiveInverseOnly)) {
return SkPDFIndirectReference();
}
}
SkRect bbox;
bbox.set(state.fBBox);
if (!SkPDFUtils::InverseTransformBBox(finalMatrix, &bbox)) {
return SkPDFIndirectReference();
}
SkDynamicMemoryWStream functionCode;
SkShader::GradientInfo infoCopy = info;
if (state.fType == SkShader::kConical_GradientType) {
SkMatrix inverseMapperMatrix;
if (!mapperMatrix.invert(&inverseMapperMatrix)) {
return SkPDFIndirectReference();
}
inverseMapperMatrix.mapPoints(infoCopy.fPoint, 2);
infoCopy.fRadius[0] = inverseMapperMatrix.mapRadius(info.fRadius[0]);
infoCopy.fRadius[1] = inverseMapperMatrix.mapRadius(info.fRadius[1]);
}
switch (state.fType) {
case SkShader::kLinear_GradientType:
linearCode(infoCopy, perspectiveInverseOnly, &functionCode);
break;
case SkShader::kRadial_GradientType:
radialCode(infoCopy, perspectiveInverseOnly, &functionCode);
break;
case SkShader::kConical_GradientType:
twoPointConicalCode(infoCopy, perspectiveInverseOnly, &functionCode);
break;
case SkShader::kSweep_GradientType:
sweepCode(infoCopy, perspectiveInverseOnly, &functionCode);
break;
default:
SkASSERT(false);
}
pdfShader->insertObject(
"Domain", SkPDFMakeArray(bbox.left(), bbox.right(), bbox.top(), bbox.bottom()));
auto domain = SkPDFMakeArray(bbox.left(), bbox.right(), bbox.top(), bbox.bottom());
std::unique_ptr<SkPDFArray> rangeObject = SkPDFMakeArray(0, 1, 0, 1, 0, 1);
pdfShader->insertRef("Function",
make_ps_function(functionCode.detachAsStream(), std::move(domain),
std::move(rangeObject), doc));
}
pdfShader->insertInt("ShadingType", shadingType);
pdfShader->insertName("ColorSpace", "DeviceRGB");
SkPDFDict pdfFunctionShader("Pattern");
pdfFunctionShader.insertInt("PatternType", 2);
pdfFunctionShader.insertObject("Matrix", SkPDFUtils::MatrixToArray(finalMatrix));
pdfFunctionShader.insertObject("Shading", std::move(pdfShader));
return doc->emit(pdfFunctionShader);
}
DEF_TEST(StreamEmptyStreamMemoryBase, r) {
SkDynamicMemoryWStream tmp;
SkAutoTDelete<SkStreamAsset> asset(tmp.detachAsStream());
REPORTER_ASSERT(r, nullptr == asset->getMemoryBase());
}
static sk_sp<SkPicture> round_trip_serialize(SkPicture* src) {
SkDynamicMemoryWStream stream;
src->serialize(&stream);
SkAutoTDelete<SkStream> reader(stream.detachAsStream());
return SkPicture::MakeFromStream(reader);
}
static sk_sp<SkPicture> copy_picture_via_serialization(SkPicture* src) {
SkDynamicMemoryWStream wstream;
src->serialize(&wstream);
SkAutoTDelete<SkStreamAsset> rstream(wstream.detachAsStream());
return SkPicture::MakeFromStream(rstream);
}
DEF_TEST(StreamEmptyStreamMemoryBase, r) {
SkDynamicMemoryWStream tmp;
std::unique_ptr<SkStreamAsset> asset(tmp.detachAsStream());
REPORTER_ASSERT(r, nullptr == asset->getMemoryBase());
}
static void Run(Task* task) {
SkString name = task->src->name();
SkString note;
SkString whyBlacklisted = is_blacklisted(task->sink.tag, task->src.tag,
task->src.options, name.c_str());
if (!whyBlacklisted.isEmpty()) {
note.appendf(" (--blacklist %s)", whyBlacklisted.c_str());
}
SkString log;
WallTimer timer;
timer.start();
if (!FLAGS_dryRun && whyBlacklisted.isEmpty()) {
SkBitmap bitmap;
SkDynamicMemoryWStream stream;
start(task->sink.tag, task->src.tag, task->src.options, name.c_str());
Error err = task->sink->draw(*task->src, &bitmap, &stream, &log);
if (!err.isEmpty()) {
timer.end();
if (err.isFatal()) {
fail(SkStringPrintf("%s %s %s %s: %s",
task->sink.tag,
task->src.tag,
task->src.options,
name.c_str(),
err.c_str()));
} else {
note.appendf(" (skipped: %s)", err.c_str());
}
done(timer.fWall, task->sink.tag, task->src.tag, task->src.options,
name, note, log);
return;
}
SkAutoTDelete<SkStreamAsset> data(stream.detachAsStream());
SkString md5;
if (!FLAGS_writePath.isEmpty() || !FLAGS_readPath.isEmpty()) {
SkMD5 hash;
if (data->getLength()) {
hash.writeStream(data, data->getLength());
data->rewind();
} else {
hash.write(bitmap.getPixels(), bitmap.getSize());
}
SkMD5::Digest digest;
hash.finish(digest);
for (int i = 0; i < 16; i++) {
md5.appendf("%02x", digest.data[i]);
}
}
if (!FLAGS_readPath.isEmpty() &&
!gGold.contains(Gold(task->sink.tag, task->src.tag,
task->src.options, name, md5))) {
fail(SkStringPrintf("%s not found for %s %s %s %s in %s",
md5.c_str(),
task->sink.tag,
task->src.tag,
task->src.options,
name.c_str(),
FLAGS_readPath[0]));
}
if (!FLAGS_writePath.isEmpty()) {
const char* ext = task->sink->fileExtension();
if (data->getLength()) {
WriteToDisk(*task, md5, ext, data, data->getLength(), NULL);
SkASSERT(bitmap.drawsNothing());
} else if (!bitmap.drawsNothing()) {
WriteToDisk(*task, md5, ext, NULL, 0, &bitmap);
}
}
}
timer.end();
done(timer.fWall, task->sink.tag, task->src.tag, task->src.options, name, note, log);
}
static void add_type3_font_info(SkPDFCanon* canon,
SkPDFDict* font,
SkTypeface* typeface,
const SkBitSet& subset,
SkGlyphID firstGlyphID,
SkGlyphID lastGlyphID) {
const SkAdvancedTypefaceMetrics* metrics = SkPDFFont::GetMetrics(typeface, canon);
SkASSERT(lastGlyphID >= firstGlyphID);
// Remove unused glyphs at the end of the range.
// Keep the lastGlyphID >= firstGlyphID invariant true.
while (lastGlyphID > firstGlyphID && !subset.has(lastGlyphID)) {
--lastGlyphID;
}
int unitsPerEm;
auto cache = SkPDFFont::MakeVectorCache(typeface, &unitsPerEm);
SkASSERT(cache);
SkScalar emSize = (SkScalar)unitsPerEm;
font->insertName("Subtype", "Type3");
// Flip about the x-axis and scale by 1/emSize.
SkMatrix fontMatrix;
fontMatrix.setScale(SkScalarInvert(emSize), -SkScalarInvert(emSize));
font->insertObject("FontMatrix", SkPDFUtils::MatrixToArray(fontMatrix));
auto charProcs = sk_make_sp<SkPDFDict>();
auto encoding = sk_make_sp<SkPDFDict>("Encoding");
auto encDiffs = sk_make_sp<SkPDFArray>();
// length(firstGlyphID .. lastGlyphID) == lastGlyphID - firstGlyphID + 1
// plus 1 for glyph 0;
SkASSERT(firstGlyphID > 0);
SkASSERT(lastGlyphID >= firstGlyphID);
int glyphCount = lastGlyphID - firstGlyphID + 2;
// one other entry for the index of first glyph.
encDiffs->reserve(glyphCount + 1);
encDiffs->appendInt(0); // index of first glyph
auto widthArray = sk_make_sp<SkPDFArray>();
widthArray->reserve(glyphCount);
SkIRect bbox = SkIRect::MakeEmpty();
sk_sp<SkPDFStream> emptyStream;
for (SkGlyphID gID : SingleByteGlyphIdIterator(firstGlyphID, lastGlyphID)) {
bool skipGlyph = gID != 0 && !subset.has(gID);
SkString characterName;
SkScalar advance = 0.0f;
SkIRect glyphBBox;
if (skipGlyph) {
characterName.set("g0");
} else {
characterName.printf("g%X", gID);
const SkGlyph& glyph = cache->getGlyphIDMetrics(gID);
advance = SkFloatToScalar(glyph.fAdvanceX);
glyphBBox = SkIRect::MakeXYWH(glyph.fLeft, glyph.fTop,
glyph.fWidth, glyph.fHeight);
bbox.join(glyphBBox);
const SkPath* path = cache->findPath(glyph);
if (path && !path->isEmpty()) {
SkDynamicMemoryWStream content;
setGlyphWidthAndBoundingBox(SkFloatToScalar(glyph.fAdvanceX), glyphBBox,
&content);
SkPDFUtils::EmitPath(*path, SkPaint::kFill_Style, &content);
SkPDFUtils::PaintPath(SkPaint::kFill_Style, path->getFillType(),
&content);
charProcs->insertObjRef(
characterName, sk_make_sp<SkPDFStream>(
std::unique_ptr<SkStreamAsset>(content.detachAsStream())));
} else {
if (!emptyStream) {
emptyStream = sk_make_sp<SkPDFStream>(
std::unique_ptr<SkStreamAsset>(
new SkMemoryStream((size_t)0)));
}
charProcs->insertObjRef(characterName, emptyStream);
}
}
encDiffs->appendName(characterName.c_str());
widthArray->appendScalar(advance);
}
encoding->insertObject("Differences", std::move(encDiffs));
font->insertInt("FirstChar", 0);
font->insertInt("LastChar", lastGlyphID - firstGlyphID + 1);
/* FontBBox: "A rectangle expressed in the glyph coordinate
system, specifying the font bounding box. This is the smallest
rectangle enclosing the shape that would result if all of the
glyphs of the font were placed with their origins coincident and
then filled." */
auto fontBBox = sk_make_sp<SkPDFArray>();
fontBBox->reserve(4);
fontBBox->appendInt(bbox.left());
fontBBox->appendInt(bbox.bottom());
fontBBox->appendInt(bbox.right());
fontBBox->appendInt(bbox.top());
font->insertObject("FontBBox", std::move(fontBBox));
font->insertName("CIDToGIDMap", "Identity");
if (metrics && metrics->fGlyphToUnicode.count() > 0) {
font->insertObjRef("ToUnicode",
SkPDFMakeToUnicodeCmap(metrics->fGlyphToUnicode,
&subset,
false,
firstGlyphID,
lastGlyphID));
}
auto descriptor = sk_make_sp<SkPDFDict>("FontDescriptor");
int32_t fontDescriptorFlags = kPdfSymbolic;
if (metrics) {
// Type3 FontDescriptor does not require all the same fields.
descriptor->insertName("FontName", metrics->fPostScriptName);
descriptor->insertInt("ItalicAngle", metrics->fItalicAngle);
fontDescriptorFlags |= (int32_t)metrics->fStyle;
// Adobe requests CapHeight, XHeight, and StemV be added
// to "greatly help our workflow downstream".
if (metrics->fCapHeight != 0) { descriptor->insertInt("CapHeight", metrics->fCapHeight); }
if (metrics->fStemV != 0) { descriptor->insertInt("StemV", metrics->fStemV); }
SkScalar xHeight = cache->getFontMetrics().fXHeight;
if (xHeight != 0) {
descriptor->insertScalar("XHeight", xHeight);
}
}
descriptor->insertInt("Flags", fontDescriptorFlags);
font->insertObjRef("FontDescriptor", std::move(descriptor));
font->insertObject("Widths", std::move(widthArray));
font->insertObject("Encoding", std::move(encoding));
font->insertObject("CharProcs", std::move(charProcs));
}
static void Run(const Task& task) {
SkString name = task.src->name();
SkString log;
if (!FLAGS_dryRun) {
SkBitmap bitmap;
SkDynamicMemoryWStream stream;
start(task.sink.tag.c_str(), task.src.tag.c_str(),
task.src.options.c_str(), name.c_str());
Error err = task.sink->draw(*task.src, &bitmap, &stream, &log);
if (!log.isEmpty()) {
info("%s %s %s %s:\n%s\n", task.sink.tag.c_str()
, task.src.tag.c_str()
, task.src.options.c_str()
, name.c_str()
, log.c_str());
}
if (!err.isEmpty()) {
if (err.isFatal()) {
fail(SkStringPrintf("%s %s %s %s: %s",
task.sink.tag.c_str(),
task.src.tag.c_str(),
task.src.options.c_str(),
name.c_str(),
err.c_str()));
} else {
done(task.sink.tag.c_str(), task.src.tag.c_str(),
task.src.options.c_str(), name.c_str());
return;
}
}
// We're likely switching threads here, so we must capture by value, [=] or [foo,bar].
SkStreamAsset* data = stream.detachAsStream();
gDefinitelyThreadSafeWork.add([task,name,bitmap,data]{
SkAutoTDelete<SkStreamAsset> ownedData(data);
// Why doesn't the copy constructor do this when we have pre-locked pixels?
bitmap.lockPixels();
SkString md5;
if (!FLAGS_writePath.isEmpty() || !FLAGS_readPath.isEmpty()) {
SkMD5 hash;
if (data->getLength()) {
hash.writeStream(data, data->getLength());
data->rewind();
} else {
// If we're BGRA (Linux, Windows), swizzle over to RGBA (Mac, Android).
// This helps eliminate multiple 0-pixel-diff hashes on gold.skia.org.
// (Android's general slow speed breaks the tie arbitrarily in RGBA's favor.)
// We might consider promoting 565 to RGBA too.
if (bitmap.colorType() == kBGRA_8888_SkColorType) {
SkBitmap swizzle;
SkAssertResult(bitmap.copyTo(&swizzle, kRGBA_8888_SkColorType));
hash.write(swizzle.getPixels(), swizzle.getSize());
} else {
hash.write(bitmap.getPixels(), bitmap.getSize());
}
}
SkMD5::Digest digest;
hash.finish(digest);
for (int i = 0; i < 16; i++) {
md5.appendf("%02x", digest.data[i]);
}
}
if (!FLAGS_readPath.isEmpty() &&
!gGold.contains(Gold(task.sink.tag, task.src.tag,
task.src.options, name, md5))) {
fail(SkStringPrintf("%s not found for %s %s %s %s in %s",
md5.c_str(),
task.sink.tag.c_str(),
task.src.tag.c_str(),
task.src.options.c_str(),
name.c_str(),
FLAGS_readPath[0]));
}
if (!FLAGS_writePath.isEmpty()) {
const char* ext = task.sink->fileExtension();
if (data->getLength()) {
WriteToDisk(task, md5, ext, data, data->getLength(), nullptr);
SkASSERT(bitmap.drawsNothing());
} else if (!bitmap.drawsNothing()) {
WriteToDisk(task, md5, ext, nullptr, 0, &bitmap);
}
}
});
}
done(task.sink.tag.c_str(), task.src.tag.c_str(), task.src.options.c_str(), name.c_str());
}
