static SkPDFDict* get_gradient_resource_dict(
SkPDFObject* functionShader,
SkPDFObject* gState) {
SkTDArray<SkPDFObject*> patterns;
if (functionShader) {
patterns.push(functionShader);
}
SkTDArray<SkPDFObject*> graphicStates;
if (gState) {
graphicStates.push(gState);
}
return SkPDFResourceDict::Create(&graphicStates, &patterns, NULL, NULL);
}
// https://www.w3.org/TR/SVG/painting.html#StrokeDasharrayProperty
bool SkSVGAttributeParser::parseDashArray(SkSVGDashArray* dashArray) {
bool parsedValue = false;
if (this->parseExpectedStringToken("none")) {
*dashArray = SkSVGDashArray(SkSVGDashArray::Type::kNone);
parsedValue = true;
} else if (this->parseExpectedStringToken("inherit")) {
*dashArray = SkSVGDashArray(SkSVGDashArray::Type::kInherit);
parsedValue = true;
} else {
SkTDArray<SkSVGLength> dashes;
for (;;) {
SkSVGLength dash;
// parseLength() also consumes trailing separators.
if (!this->parseLength(&dash)) {
break;
}
dashes.push(dash);
parsedValue = true;
}
if (parsedValue) {
*dashArray = SkSVGDashArray(std::move(dashes));
}
}
return parsedValue && this->parseEOSToken();
}
static bool verify_query(SkIRect query, DataRect rects[],
SkTDArray<void*>& found) {
SkTDArray<void*> expected;
// manually intersect with every rectangle
for (int i = 0; i < NUM_RECTS; ++i) {
if (SkIRect::IntersectsNoEmptyCheck(query, rects[i].rect)) {
expected.push(rects[i].data);
}
}
if (expected.count() != found.count()) {
return false;
}
if (0 == expected.count()) {
return true;
}
// Just cast to long since sorting by the value of the void*'s was being problematic...
SkTQSort(reinterpret_cast<long*>(expected.begin()),
reinterpret_cast<long*>(expected.end() - 1));
SkTQSort(reinterpret_cast<long*>(found.begin()),
reinterpret_cast<long*>(found.end() - 1));
return found == expected;
}
void SkRTree::insert(const SkRect boundsArray[], int N) {
SkASSERT(0 == fCount);
SkTDArray<Branch> branches;
branches.setReserve(N);
for (int i = 0; i < N; i++) {
const SkRect& bounds = boundsArray[i];
if (bounds.isEmpty()) {
continue;
}
Branch* b = branches.push();
b->fBounds = bounds;
b->fOpIndex = i;
}
fCount = branches.count();
if (fCount) {
if (1 == fCount) {
fNodes.setReserve(1);
Node* n = this->allocateNodeAtLevel(0);
n->fNumChildren = 1;
n->fChildren[0] = branches[0];
fRoot.fSubtree = n;
fRoot.fBounds = branches[0].fBounds;
} else {
fNodes.setReserve(CountNodes(fCount, fAspectRatio));
fRoot = this->bulkLoad(&branches);
}
}
}
static sk_sp<SkPDFStream> get_subset_font_stream(
std::unique_ptr<SkStreamAsset> fontAsset,
const SkBitSet& glyphUsage,
const char* fontName,
int ttcIndex) {
// Generate glyph id array in format needed by sfntly.
// TODO(halcanary): sfntly should take a more compact format.
SkTDArray<unsigned> subset;
if (!glyphUsage.has(0)) {
subset.push(0); // Always include glyph 0.
}
glyphUsage.exportTo(&subset);
unsigned char* subsetFont{nullptr};
sk_sp<SkData> fontData(stream_to_data(std::move(fontAsset)));
#if defined(SK_BUILD_FOR_GOOGLE3)
// TODO(halcanary): update SK_BUILD_FOR_GOOGLE3 to newest version of Sfntly.
(void)ttcIndex;
int subsetFontSize = SfntlyWrapper::SubsetFont(fontName,
fontData->bytes(),
fontData->size(),
subset.begin(),
subset.count(),
&subsetFont);
#else
(void)fontName;
int subsetFontSize = SfntlyWrapper::SubsetFont(ttcIndex,
fontData->bytes(),
fontData->size(),
subset.begin(),
subset.count(),
&subsetFont);
#endif
fontData.reset();
subset.reset();
SkASSERT(subsetFontSize > 0 || subsetFont == nullptr);
if (subsetFontSize < 1) {
return nullptr;
}
SkASSERT(subsetFont != nullptr);
auto subsetStream = sk_make_sp<SkPDFStream>(
SkData::MakeWithProc(
subsetFont, subsetFontSize,
[](const void* p, void*) { delete[] (unsigned char*)p; },
nullptr));
subsetStream->dict()->insertInt("Length1", subsetFontSize);
return subsetStream;
}
GrTextureStripAtlas* GrTextureStripAtlas::GetAtlas(const GrTextureStripAtlas::Desc& desc) {
static SkTDArray<AtlasEntry> gAtlasEntries;
static GrTHashTable<AtlasEntry, AtlasHashKey, 8> gAtlasCache;
AtlasHashKey key;
key.setKeyData(desc.asKey());
AtlasEntry* entry = gAtlasCache.find(key);
if (NULL != entry) {
return entry->fAtlas;
} else {
entry = gAtlasEntries.push();
entry->fAtlas = SkNEW_ARGS(GrTextureStripAtlas, (desc));
entry->fKey = key;
gAtlasCache.insert(key, entry);
return entry->fAtlas;
}
}
static bool verify_query(SkRect query, SkRect rects[], SkTDArray<unsigned>& found) {
SkTDArray<unsigned> expected;
// manually intersect with every rectangle
for (int i = 0; i < NUM_RECTS; ++i) {
if (SkRect::Intersects(query, rects[i])) {
expected.push(i);
}
}
if (expected.count() != found.count()) {
return false;
}
if (0 == expected.count()) {
return true;
}
return found == expected;
}
void SkPDFDocument::getCountOfFontTypes(
int counts[SkAdvancedTypefaceMetrics::kNotEmbeddable_Font + 1]) const {
sk_bzero(counts, sizeof(int) *
(SkAdvancedTypefaceMetrics::kNotEmbeddable_Font + 1));
SkTDArray<SkFontID> seenFonts;
for (int pageNumber = 0; pageNumber < fPages.count(); pageNumber++) {
const SkTDArray<SkPDFFont*>& fontResources =
fPages[pageNumber]->getFontResources();
for (int font = 0; font < fontResources.count(); font++) {
SkFontID fontID = fontResources[font]->typeface()->uniqueID();
if (seenFonts.find(fontID) == -1) {
counts[fontResources[font]->getType()]++;
seenFonts.push(fontID);
}
}
}
}
static void gather_tests() {
if (!FLAGS_src.contains("tests")) {
return;
}
for (const skiatest::TestRegistry* r = skiatest::TestRegistry::Head(); r; r = r->next()) {
if (!in_shard()) {
continue;
}
// Despite its name, factory() is returning a reference to
// link-time static const POD data.
const skiatest::Test& test = r->factory();
if (SkCommandLineFlags::ShouldSkip(FLAGS_match, test.name)) {
continue;
}
if (test.needsGpu && gpu_supported()) {
(FLAGS_gpu_threading ? gThreadedTests : gGPUTests).push(test);
} else if (!test.needsGpu && FLAGS_cpu) {
gThreadedTests.push(test);
}
}
}
// https://www.w3.org/TR/SVG/shapes.html#PolygonElementPointsAttribute
bool SkSVGAttributeParser::parsePoints(SkSVGPointsType* points) {
SkTDArray<SkPoint> pts;
bool parsedValue = false;
for (;;) {
this->parseWSToken();
SkScalar x, y;
if (!this->parseScalarToken(&x)) {
break;
}
// comma-wsp:
// (wsp+ comma? wsp*) | (comma wsp*)
bool wsp = this->parseWSToken();
bool comma = this->parseExpectedStringToken(",");
if (!(wsp || comma)) {
break;
}
this->parseWSToken();
if (!this->parseScalarToken(&y)) {
break;
}
pts.push(SkPoint::Make(x, y));
parsedValue = true;
}
if (parsedValue && this->parseEOSToken()) {
*points = pts;
return true;
}
return false;
}
// TODO(halcanary): expose notEmbeddableCount in SkDocument
void GetCountOfFontTypes(
const SkTDArray<SkPDFDevice*>& pageDevices,
int counts[SkAdvancedTypefaceMetrics::kOther_Font + 1],
int* notSubsettableCount,
int* notEmbeddableCount) {
sk_bzero(counts, sizeof(int) *
(SkAdvancedTypefaceMetrics::kOther_Font + 1));
SkTDArray<SkFontID> seenFonts;
int notSubsettable = 0;
int notEmbeddable = 0;
for (int pageNumber = 0; pageNumber < pageDevices.count(); pageNumber++) {
const SkTDArray<SkPDFFont*>& fontResources =
pageDevices[pageNumber]->getFontResources();
for (int font = 0; font < fontResources.count(); font++) {
SkFontID fontID = fontResources[font]->typeface()->uniqueID();
if (seenFonts.find(fontID) == -1) {
counts[fontResources[font]->getType()]++;
seenFonts.push(fontID);
if (!fontResources[font]->canSubset()) {
notSubsettable++;
}
if (!fontResources[font]->canEmbed()) {
notEmbeddable++;
}
}
}
}
if (notSubsettableCount) {
*notSubsettableCount = notSubsettable;
}
if (notEmbeddableCount) {
*notEmbeddableCount = notEmbeddable;
}
}
// static
void SkPDFPage::GeneratePageTree(const SkTDArray<SkPDFPage*>& pages,
SkPDFCatalog* catalog,
SkTDArray<SkPDFDict*>* pageTree,
SkPDFDict** rootNode) {
// PDF wants a tree describing all the pages in the document. We arbitrary
// choose 8 (kNodeSize) as the number of allowed children. The internal
// nodes have type "Pages" with an array of children, a parent pointer, and
// the number of leaves below the node as "Count." The leaves are passed
// into the method, have type "Page" and need a parent pointer. This method
// builds the tree bottom up, skipping internal nodes that would have only
// one child.
static const int kNodeSize = 8;
SkAutoTUnref<SkPDFName> kidsName(new SkPDFName("Kids"));
SkAutoTUnref<SkPDFName> countName(new SkPDFName("Count"));
SkAutoTUnref<SkPDFName> parentName(new SkPDFName("Parent"));
// curNodes takes a reference to its items, which it passes to pageTree.
SkTDArray<SkPDFDict*> curNodes;
curNodes.setReserve(pages.count());
for (int i = 0; i < pages.count(); i++) {
SkSafeRef(pages[i]);
curNodes.push(pages[i]);
}
// nextRoundNodes passes its references to nodes on to curNodes.
SkTDArray<SkPDFDict*> nextRoundNodes;
nextRoundNodes.setReserve((pages.count() + kNodeSize - 1)/kNodeSize);
int treeCapacity = kNodeSize;
do {
for (int i = 0; i < curNodes.count(); ) {
if (i > 0 && i + 1 == curNodes.count()) {
nextRoundNodes.push(curNodes[i]);
break;
}
SkPDFDict* newNode = new SkPDFDict("Pages");
SkAutoTUnref<SkPDFObjRef> newNodeRef(new SkPDFObjRef(newNode));
SkAutoTUnref<SkPDFArray> kids(new SkPDFArray);
kids->reserve(kNodeSize);
int count = 0;
for (; i < curNodes.count() && count < kNodeSize; i++, count++) {
curNodes[i]->insert(parentName.get(), newNodeRef.get());
kids->append(new SkPDFObjRef(curNodes[i]))->unref();
// TODO(vandebo): put the objects in strict access order.
// Probably doesn't matter because they are so small.
if (curNodes[i] != pages[0]) {
pageTree->push(curNodes[i]); // Transfer reference.
catalog->addObject(curNodes[i], false);
} else {
SkSafeUnref(curNodes[i]);
catalog->addObject(curNodes[i], true);
}
}
// treeCapacity is the number of leaf nodes possible for the
// current set of subtrees being generated. (i.e. 8, 64, 512, ...).
// It is hard to count the number of leaf nodes in the current
// subtree. However, by construction, we know that unless it's the
// last subtree for the current depth, the leaf count will be
// treeCapacity, otherwise it's what ever is left over after
// consuming treeCapacity chunks.
int pageCount = treeCapacity;
if (i == curNodes.count()) {
pageCount = ((pages.count() - 1) % treeCapacity) + 1;
}
newNode->insert(countName.get(), new SkPDFInt(pageCount))->unref();
newNode->insert(kidsName.get(), kids.get());
nextRoundNodes.push(newNode); // Transfer reference.
}
curNodes = nextRoundNodes;
nextRoundNodes.rewind();
treeCapacity *= kNodeSize;
} while (curNodes.count() > 1);
pageTree->push(curNodes[0]); // Transfer reference.
catalog->addObject(curNodes[0], false);
if (rootNode) {
*rootNode = curNodes[0];
}
}
// static
void SkPDFPage::GeneratePageTree(const SkTDArray<SkPDFPage*>& pages,
SkPDFCatalog* catalog,
SkTDArray<SkPDFDict*>* pageTree,
SkPDFDict** rootNode) {
// PDF wants a tree describing all the pages in the document. We arbitrary
// choose 8 (kNodeSize) as the number of allowed children. The internal
// nodes have type "Pages" with an array of children, a parent pointer, and
// the number of leaves below the node as "Count." The leaves are passed
// into the method, have type "Page" and need a parent pointer. This method
// builds the tree bottom up, skipping internal nodes that would have only
// one child.
static const int kNodeSize = 8;
SkRefPtr<SkPDFName> kidsName = new SkPDFName("Kids");
kidsName->unref(); // SkRefPtr and new both took a reference.
SkRefPtr<SkPDFName> countName = new SkPDFName("Count");
countName->unref(); // SkRefPtr and new both took a reference.
SkRefPtr<SkPDFName> parentName = new SkPDFName("Parent");
parentName->unref(); // SkRefPtr and new both took a reference.
// curNodes takes a reference to its items, which it passes to pageTree.
SkTDArray<SkPDFDict*> curNodes;
curNodes.setReserve(pages.count());
for (int i = 0; i < pages.count(); i++) {
SkSafeRef(pages[i]);
curNodes.push(pages[i]);
}
// nextRoundNodes passes its references to nodes on to curNodes.
SkTDArray<SkPDFDict*> nextRoundNodes;
nextRoundNodes.setReserve((pages.count() + kNodeSize - 1)/kNodeSize);
int treeCapacity = kNodeSize;
do {
for (int i = 0; i < curNodes.count(); ) {
if (i > 0 && i + 1 == curNodes.count()) {
nextRoundNodes.push(curNodes[i]);
break;
}
SkPDFDict* newNode = new SkPDFDict("Pages");
SkRefPtr<SkPDFObjRef> newNodeRef = new SkPDFObjRef(newNode);
newNodeRef->unref(); // SkRefPtr and new both took a reference.
SkRefPtr<SkPDFArray> kids = new SkPDFArray;
kids->unref(); // SkRefPtr and new both took a reference.
kids->reserve(kNodeSize);
int count = 0;
for (; i < curNodes.count() && count < kNodeSize; i++, count++) {
curNodes[i]->insert(parentName.get(), newNodeRef.get());
kids->append(new SkPDFObjRef(curNodes[i]))->unref();
// TODO(vandebo): put the objects in strict access order.
// Probably doesn't matter because they are so small.
if (curNodes[i] != pages[0]) {
pageTree->push(curNodes[i]); // Transfer reference.
catalog->addObject(curNodes[i], false);
} else {
SkSafeUnref(curNodes[i]);
catalog->addObject(curNodes[i], true);
}
}
newNode->insert(kidsName.get(), kids.get());
int pageCount = treeCapacity;
if (count < kNodeSize) {
pageCount = pages.count() % treeCapacity;
}
newNode->insert(countName.get(), new SkPDFInt(pageCount))->unref();
nextRoundNodes.push(newNode); // Transfer reference.
}
curNodes = nextRoundNodes;
nextRoundNodes.rewind();
treeCapacity *= kNodeSize;
} while (curNodes.count() > 1);
pageTree->push(curNodes[0]); // Transfer reference.
catalog->addObject(curNodes[0], false);
if (rootNode) {
*rootNode = curNodes[0];
}
}
static bool emit_pdf_document(const SkTDArray<const SkPDFDevice*>& pageDevices,
SkWStream* stream) {
if (pageDevices.isEmpty()) {
return false;
}
SkTDArray<SkPDFDict*> pages;
SkAutoTUnref<SkPDFDict> dests(SkNEW(SkPDFDict));
for (int i = 0; i < pageDevices.count(); i++) {
SkASSERT(pageDevices[i]);
SkASSERT(i == 0 ||
pageDevices[i - 1]->getCanon() == pageDevices[i]->getCanon());
SkAutoTUnref<SkPDFDict> page(create_pdf_page(pageDevices[i]));
pageDevices[i]->appendDestinations(dests, page.get());
pages.push(page.detach());
}
SkTDArray<SkPDFDict*> pageTree;
SkAutoTUnref<SkPDFDict> docCatalog(SkNEW_ARGS(SkPDFDict, ("Catalog")));
SkPDFDict* pageTreeRoot;
generate_page_tree(pages, &pageTree, &pageTreeRoot);
docCatalog->insertObjRef("Pages", SkRef(pageTreeRoot));
if (dests->size() > 0) {
docCatalog->insertObjRef("Dests", dests.detach());
}
/* TODO(vandebo): output intent
SkAutoTUnref<SkPDFDict> outputIntent = new SkPDFDict("OutputIntent");
outputIntent->insertName("S", "GTS_PDFA1");
outputIntent->insertString("OutputConditionIdentifier", "sRGB");
SkAutoTUnref<SkPDFArray> intentArray(new SkPDFArray);
intentArray->appendObject(SkRef(outputIntent.get()));
docCatalog->insertObject("OutputIntent", intentArray.detach());
*/
// Build font subsetting info before proceeding.
SkPDFSubstituteMap substitutes;
perform_font_subsetting(pageDevices, &substitutes);
SkPDFObjNumMap objNumMap;
if (objNumMap.addObject(docCatalog.get())) {
docCatalog->addResources(&objNumMap, substitutes);
}
size_t baseOffset = stream->bytesWritten();
emit_pdf_header(stream);
SkTDArray<int32_t> offsets;
for (int i = 0; i < objNumMap.objects().count(); ++i) {
SkPDFObject* object = objNumMap.objects()[i];
size_t offset = stream->bytesWritten();
// This assert checks that size(pdf_header) > 0 and that
// the output stream correctly reports bytesWritten().
SkASSERT(offset > baseOffset);
offsets.push(SkToS32(offset - baseOffset));
SkASSERT(object == substitutes.getSubstitute(object));
SkASSERT(objNumMap.getObjectNumber(object) == i + 1);
stream->writeDecAsText(i + 1);
stream->writeText(" 0 obj\n"); // Generation number is always 0.
object->emitObject(stream, objNumMap, substitutes);
stream->writeText("\nendobj\n");
}
int32_t xRefFileOffset = SkToS32(stream->bytesWritten() - baseOffset);
// Include the zeroth object in the count.
int32_t objCount = SkToS32(offsets.count() + 1);
stream->writeText("xref\n0 ");
stream->writeDecAsText(objCount);
stream->writeText("\n0000000000 65535 f \n");
for (int i = 0; i < offsets.count(); i++) {
SkASSERT(offsets[i] > 0);
stream->writeBigDecAsText(offsets[i], 10);
stream->writeText(" 00000 n \n");
}
emit_pdf_footer(stream, objNumMap, substitutes, docCatalog.get(), objCount,
xRefFileOffset);
// The page tree has both child and parent pointers, so it creates a
// reference cycle. We must clear that cycle to properly reclaim memory.
for (int i = 0; i < pageTree.count(); i++) {
pageTree[i]->clear();
}
pageTree.safeUnrefAll();
pages.unrefAll();
return true;
}
void draw_paths(SkCanvas* canvas, ShadowMode mode) {
SkTArray<SkPath> paths;
paths.push_back().addRoundRect(SkRect::MakeWH(50, 50), 10, 10);
SkRRect oddRRect;
oddRRect.setNinePatch(SkRect::MakeWH(50, 50), 9, 13, 6, 16);
paths.push_back().addRRect(oddRRect);
paths.push_back().addRect(SkRect::MakeWH(50, 50));
paths.push_back().addCircle(25, 25, 25);
paths.push_back().cubicTo(100, 50, 20, 100, 0, 0);
paths.push_back().addOval(SkRect::MakeWH(20, 60));
// star
SkTArray<SkPath> concavePaths;
concavePaths.push_back().moveTo(0.0f, -33.3333f);
concavePaths.back().lineTo(9.62f, -16.6667f);
concavePaths.back().lineTo(28.867f, -16.6667f);
concavePaths.back().lineTo(19.24f, 0.0f);
concavePaths.back().lineTo(28.867f, 16.6667f);
concavePaths.back().lineTo(9.62f, 16.6667f);
concavePaths.back().lineTo(0.0f, 33.3333f);
concavePaths.back().lineTo(-9.62f, 16.6667f);
concavePaths.back().lineTo(-28.867f, 16.6667f);
concavePaths.back().lineTo(-19.24f, 0.0f);
concavePaths.back().lineTo(-28.867f, -16.6667f);
concavePaths.back().lineTo(-9.62f, -16.6667f);
concavePaths.back().close();
// dumbbell
concavePaths.push_back().moveTo(50, 0);
concavePaths.back().cubicTo(100, 25, 60, 50, 50, 0);
concavePaths.back().cubicTo(0, -25, 40, -50, 50, 0);
static constexpr SkScalar kPad = 15.f;
static constexpr SkScalar kLightR = 100.f;
static constexpr SkScalar kHeight = 50.f;
// transform light position relative to canvas to handle tiling
SkPoint lightXY = canvas->getTotalMatrix().mapXY(250, 400);
SkPoint3 lightPos = { lightXY.fX, lightXY.fY, 500 };
canvas->translate(3 * kPad, 3 * kPad);
canvas->save();
SkScalar x = 0;
SkScalar dy = 0;
SkTDArray<SkMatrix> matrices;
matrices.push()->reset();
SkMatrix* m = matrices.push();
m->setRotate(33.f, 25.f, 25.f);
m->postScale(1.2f, 0.8f, 25.f, 25.f);
for (auto& m : matrices) {
for (int flags : { kNone_ShadowFlag, kTransparentOccluder_ShadowFlag }) {
for (const auto& path : paths) {
SkRect postMBounds = path.getBounds();
m.mapRect(&postMBounds);
SkScalar w = postMBounds.width() + kHeight;
SkScalar dx = w + kPad;
if (x + dx > kW - 3 * kPad) {
canvas->restore();
canvas->translate(0, dy);
canvas->save();
x = 0;
dy = 0;
}
canvas->save();
canvas->concat(m);
if (kDebugColorNoOccluders == mode || kDebugColorOccluders == mode) {
draw_shadow(canvas, path, kHeight, SK_ColorRED, lightPos, kLightR,
true, flags);
draw_shadow(canvas, path, kHeight, SK_ColorBLUE, lightPos, kLightR,
false, flags);
} else if (kGrayscale == mode) {
SkColor ambientColor = SkColorSetARGB(0.1f * 255, 0, 0, 0);
SkColor spotColor = SkColorSetARGB(0.25f * 255, 0, 0, 0);
SkShadowUtils::DrawShadow(canvas, path, SkPoint3{0, 0, kHeight}, lightPos,
kLightR, ambientColor, spotColor, flags);
}
SkPaint paint;
paint.setAntiAlias(true);
if (kDebugColorNoOccluders == mode) {
// Draw the path outline in green on top of the ambient and spot shadows.
if (SkToBool(flags & kTransparentOccluder_ShadowFlag)) {
paint.setColor(SK_ColorCYAN);
} else {
paint.setColor(SK_ColorGREEN);
}
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(0);
} else {
paint.setColor(kDebugColorOccluders == mode ? SK_ColorLTGRAY : SK_ColorWHITE);
if (SkToBool(flags & kTransparentOccluder_ShadowFlag)) {
paint.setAlpha(128);
}
paint.setStyle(SkPaint::kFill_Style);
}
canvas->drawPath(path, paint);
canvas->restore();
canvas->translate(dx, 0);
x += dx;
dy = SkTMax(dy, postMBounds.height() + kPad + kHeight);
}
}
}
// concave paths
canvas->restore();
canvas->translate(kPad, dy);
canvas->save();
x = kPad;
dy = 0;
for (auto& m : matrices) {
// for the concave paths we are not clipping, so transparent and opaque are the same
for (const auto& path : concavePaths) {
SkRect postMBounds = path.getBounds();
m.mapRect(&postMBounds);
SkScalar w = postMBounds.width() + kHeight;
SkScalar dx = w + kPad;
canvas->save();
canvas->concat(m);
if (kDebugColorNoOccluders == mode || kDebugColorOccluders == mode) {
draw_shadow(canvas, path, kHeight, SK_ColorRED, lightPos, kLightR,
true, kNone_ShadowFlag);
draw_shadow(canvas, path, kHeight, SK_ColorBLUE, lightPos, kLightR,
false, kNone_ShadowFlag);
} else if (kGrayscale == mode) {
SkColor ambientColor = SkColorSetARGB(0.1f * 255, 0, 0, 0);
SkColor spotColor = SkColorSetARGB(0.25f * 255, 0, 0, 0);
SkShadowUtils::DrawShadow(canvas, path, SkPoint3{ 0, 0, kHeight }, lightPos,
kLightR, ambientColor, spotColor, kNone_ShadowFlag);
}
SkPaint paint;
paint.setAntiAlias(true);
if (kDebugColorNoOccluders == mode) {
// Draw the path outline in green on top of the ambient and spot shadows.
paint.setColor(SK_ColorGREEN);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(0);
} else {
paint.setColor(kDebugColorOccluders == mode ? SK_ColorLTGRAY : SK_ColorWHITE);
paint.setStyle(SkPaint::kFill_Style);
}
canvas->drawPath(path, paint);
canvas->restore();
canvas->translate(dx, 0);
x += dx;
dy = SkTMax(dy, postMBounds.height() + kPad + kHeight);
}
}
// Show where the light is in x,y as a circle (specified in device space).
SkMatrix invCanvasM = canvas->getTotalMatrix();
if (invCanvasM.invert(&invCanvasM)) {
canvas->save();
canvas->concat(invCanvasM);
SkPaint paint;
paint.setColor(SK_ColorBLACK);
paint.setAntiAlias(true);
canvas->drawCircle(lightPos.fX, lightPos.fY, kLightR / 10.f, paint);
canvas->restore();
}
}
void SkCommandLineFlags::Parse(int argc, char** argv) {
// Only allow calling this function once.
static bool gOnce;
if (gOnce) {
SkDebugf("Parse should only be called once at the beginning of main!\n");
SkASSERT(false);
return;
}
gOnce = true;
bool helpPrinted = false;
// Loop over argv, starting with 1, since the first is just the name of the program.
for (int i = 1; i < argc; i++) {
if (0 == strcmp("-h", argv[i]) || 0 == strcmp("--help", argv[i])) {
// Print help message.
SkTDArray<const char*> helpFlags;
for (int j = i + 1; j < argc; j++) {
if (SkStrStartsWith(argv[j], '-')) {
break;
}
helpFlags.append(1, &argv[j]);
}
if (0 == helpFlags.count()) {
// Only print general help message if help for specific flags is not requested.
SkDebugf("%s\n%s\n", argv[0], gUsage.c_str());
}
SkDebugf("Flags:\n");
if (0 == helpFlags.count()) {
// If no flags followed --help, print them all
SkTDArray<SkFlagInfo*> allFlags;
for (SkFlagInfo* flag = SkCommandLineFlags::gHead; flag;
flag = flag->next()) {
allFlags.push(flag);
}
SkTQSort(&allFlags[0], &allFlags[allFlags.count() - 1],
CompareFlagsByName());
for (int i = 0; i < allFlags.count(); ++i) {
print_help_for_flag(allFlags[i]);
if (allFlags[i]->extendedHelp().size() > 0) {
SkDebugf(" Use '--help %s' for more information.\n",
allFlags[i]->name().c_str());
}
}
} else {
for (SkFlagInfo* flag = SkCommandLineFlags::gHead; flag;
flag = flag->next()) {
for (int k = 0; k < helpFlags.count(); k++) {
if (flag->name().equals(helpFlags[k]) ||
flag->shortName().equals(helpFlags[k])) {
print_extended_help_for_flag(flag);
helpFlags.remove(k);
break;
}
}
}
}
if (helpFlags.count() > 0) {
SkDebugf("Requested help for unrecognized flags:\n");
for (int k = 0; k < helpFlags.count(); k++) {
SkDebugf(" --%s\n", helpFlags[k]);
}
}
helpPrinted = true;
}
if (!helpPrinted) {
bool flagMatched = false;
SkFlagInfo* flag = gHead;
while (flag != nullptr) {
if (flag->match(argv[i])) {
flagMatched = true;
switch (flag->getFlagType()) {
case SkFlagInfo::kBool_FlagType:
// Can be handled by match, above, but can also be set by the next
// string.
if (i+1 < argc && !SkStrStartsWith(argv[i+1], '-')) {
i++;
bool value;
if (parse_bool_arg(argv[i], &value)) {
flag->setBool(value);
}
}
break;
case SkFlagInfo::kString_FlagType:
flag->resetStrings();
// Add all arguments until another flag is reached.
while (i+1 < argc) {
char* end = nullptr;
// Negative numbers aren't flags.
ignore_result(strtod(argv[i+1], &end));
if (end == argv[i+1] && SkStrStartsWith(argv[i+1], '-')) {
break;
}
i++;
flag->append(argv[i]);
}
break;
case SkFlagInfo::kInt_FlagType:
i++;
flag->setInt(atoi(argv[i]));
break;
case SkFlagInfo::kDouble_FlagType:
i++;
flag->setDouble(atof(argv[i]));
break;
default:
SkDEBUGFAIL("Invalid flag type");
}
break;
}
flag = flag->next();
}
if (!flagMatched) {
#if SK_BUILD_FOR_MAC
if (SkStrStartsWith(argv[i], "NSDocumentRevisions")
|| SkStrStartsWith(argv[i], "-NSDocumentRevisions")) {
i++; // skip YES
} else
#endif
if (FLAGS_undefok) {
SkDebugf("FYI: ignoring unknown flag '%s'.\n", argv[i]);
} else {
SkDebugf("Got unknown flag '%s'. Exiting.\n", argv[i]);
exit(-1);
}
}
}
}
// Since all of the flags have been set, release the memory used by each
// flag. FLAGS_x can still be used after this.
SkFlagInfo* flag = gHead;
gHead = nullptr;
while (flag != nullptr) {
SkFlagInfo* next = flag->next();
delete flag;
flag = next;
}
if (helpPrinted) {
exit(0);
}
}
