AuroraMiddleware/skia2
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Add SkGlyphRunList - v2

Browse Source 
Extend the glyph run system with a glyph run list. This
allows the processing of text blobs.

Add original text an cluster to runs for PDF.

PS - the original had read off the end of a buffer problem.

Change-Id: I9430f0c27aaa3d9458bfe3caba5f433b72fdf84c
Reviewed-on: https://skia-review.googlesource.com/136792
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Herb Derby <herb@google.com>
This commit is contained in:
Herb Derby 2018-06-18 19:13:37 -04:00 committed by Skia Commit-Bot
parent 198498b010
commit b9177cfaa8
3 changed files with 334 additions and 100 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

264
src/core/SkGlyphRun.cpp
View File

@ -19,9 +19,12 @@
#include "SkPaint.h"
#include "SkPaintPriv.h"
#include "SkStrikeCache.h"
#include "SkTextBlob.h"
#include "SkTextBlobRunIterator.h"
#include "SkTo.h"
#include "SkUtils.h"
namespace {
static SkTypeface::Encoding convert_encoding(SkPaint::TextEncoding encoding) {
switch (encoding) {
case SkPaint::kUTF8_TextEncoding: return SkTypeface::kUTF8_Encoding;
@ -30,8 +33,15 @@ static SkTypeface::Encoding convert_encoding(SkPaint::TextEncoding encoding) {
default: return SkTypeface::kUTF32_Encoding;
}
}
} // namespace
// -- SkGlyphSet ----------------------------------------------------------------------------------
uint32_t SkGlyphSet::uniqueSize() {
// The size is how big the vector is grown since being passed into reuse.
return fUniqueGlyphIDs->size() - fStartOfUniqueIDs;
}
uint16_t SkGlyphSet::add(SkGlyphID glyphID) {
static constexpr SkGlyphID kUndefGlyph{0};
@ -44,11 +54,13 @@ uint16_t SkGlyphSet::add(SkGlyphID glyphID) {
}
auto index = fIndices[glyphID];
if (index < fUniqueGlyphIDs->size() && (*fUniqueGlyphIDs)[index] == glyphID) {
// Remember we start at the end of what ever was passed in.
if (index < this->uniqueSize() && (*fUniqueGlyphIDs)[fStartOfUniqueIDs + index] == glyphID) {
return index;
}
uint16_t newIndex = SkTo<uint16_t>(fUniqueGlyphIDs->size());
uint16_t newIndex = SkTo<uint16_t>(this->uniqueSize());
fUniqueGlyphIDs->push_back(glyphID);
fIndices[glyphID] = newIndex;
return newIndex;
@ -58,15 +70,12 @@ void SkGlyphSet::reuse(uint32_t glyphUniverseSize, std::vector<SkGlyphID>* uniqu
SkASSERT(glyphUniverseSize <= (1 << 16));
fUniverseSize = glyphUniverseSize;
fUniqueGlyphIDs = uniqueGlyphIDs;
// If we're hanging onto these arrays for a long time, we don't want their size to drift
// endlessly upwards. It's unusual to see more than 256 unique glyphs used in a run,
// or a typeface with more than 4096 possible glyphs.
if (fUniqueGlyphIDs->size() > 256) {
fUniqueGlyphIDs->resize(256);
fUniqueGlyphIDs->shrink_to_fit();
}
fUniqueGlyphIDs->clear();
// Capture the vector end to act as the start of a new unique id vector.
fStartOfUniqueIDs = uniqueGlyphIDs->size();
// If we're hanging onto these arrays for a long time, we don't want their size to drift
// endlessly upwards. It's unusual to see a typeface with more than 4096 possible glyphs.
if (glyphUniverseSize < 4096 && fIndices.size() > 4096) {
fIndices.resize(4096);
fIndices.shrink_to_fit();
@ -77,6 +86,21 @@ void SkGlyphSet::reuse(uint32_t glyphUniverseSize, std::vector<SkGlyphID>* uniqu
}
// -- SkGlyphRun -----------------------------------------------------------------------------------
SkGlyphRun::SkGlyphRun(SkSpan<uint16_t> denseIndex,
SkSpan<SkPoint> positions,
SkSpan<SkGlyphID> scratchGlyphs,
SkSpan<SkGlyphID> uniqueGlyphIDs,
SkSpan<const char> text,
SkSpan<uint32_t> clusters)
: fDenseIndex{denseIndex}, fPositions{positions}
, fTemporaryShuntGlyphIDs{scratchGlyphs}
, fUniqueGlyphIDs{uniqueGlyphIDs}
, fText{text}
, fClusters{clusters} {
SkASSERT(denseIndex.size() == positions.size());
SkASSERT(denseIndex.size() == scratchGlyphs.size());
}
void SkGlyphRun::temporaryShuntToDrawPosText(const SkPaint& paint, SkBaseDevice* device) {
@ -93,12 +117,162 @@ void SkGlyphRun::temporaryShuntToCallback(TemporaryShuntCallback callback) {
callback(this->runSize(), bytes, pos);
}
// -- SkGlyphRunList -------------------------------------------------------------------------------
SkGlyphRunList::SkGlyphRunList(SkSpan<SkGlyphRun> glyphRuns, uint64_t uniqueID)
: fUniqueID{uniqueID}
, fGlyphRuns{glyphRuns} { }
// -- SkGlyphRunBuilder ----------------------------------------------------------------------------
void SkGlyphRunBuilder::prepareDrawText(
const SkPaint& paint, const void* bytes, size_t byteLength, SkPoint origin) {
this->initialize();
SkSpan<const char> originalText((const char*)bytes, byteLength);
if (paint.getTextEncoding() != SkPaint::kUTF8_TextEncoding) {
originalText = SkSpan<const char>();
}
this->drawText(paint, bytes, byteLength, origin, originalText, SkSpan<uint32_t>());
}
this->initializeDenseAndUnique(paint, bytes, byteLength);
void SkGlyphRunBuilder::prepareDrawPosTextH(const SkPaint& paint, const void* bytes,
size_t byteLength, const SkScalar* xpos,
SkScalar constY) {
this->initialize();
this->drawPosTextH(
paint, bytes, byteLength, xpos, constY, SkSpan<const char>(), SkSpan<uint32_t>());
}
void SkGlyphRunBuilder::prepareDrawPosText(const SkPaint& paint, const void* bytes,
size_t byteLength, const SkPoint* pos) {
this->initialize();
this->drawPosText(paint, bytes, byteLength, pos, SkSpan<const char>(), SkSpan<uint32_t>());
}
void SkGlyphRunBuilder::prepareTextBlob(
const SkPaint& paint, const SkTextBlob& blob, SkPoint origin) {
this->initialize();
fUniqueID = blob.uniqueID();
SkPaint runPaint = paint;
for (SkTextBlobRunIterator it(&blob); !it.done(); it.next()) {
// applyFontToPaint() always overwrites the exact same attributes,
// so it is safe to not re-seed the paint for this reason.
it.applyFontToPaint(&runPaint);
// These better be glyphs
SkASSERT(runPaint.getTextEncoding() == SkPaint::kGlyphID_TextEncoding);
auto text = SkSpan<const char>(it.text(), it.textSize());
auto clusters = SkSpan<uint32_t>(it.clusters(), it.glyphCount());
size_t glyphLen = it.glyphCount() * sizeof(SkGlyphID);
const SkPoint& offset = it.offset();
switch (it.positioning()) {
case SkTextBlob::kDefault_Positioning: {
auto dtOrigin = origin + offset;
this->drawText(runPaint, it.glyphs(), glyphLen, dtOrigin, text, clusters);
}
break;
case SkTextBlob::kHorizontal_Positioning: {
auto constY = origin.y() + offset.y();
this->drawPosTextH(
runPaint, it.glyphs(), glyphLen, it.pos(), constY, text, clusters);
}
break;
case SkTextBlob::kFull_Positioning:
this->drawPosText(
runPaint, it.glyphs(), glyphLen, (const SkPoint*)it.pos(), text, clusters);
break;
default:
SK_ABORT("unhandled positioning mode");
}
}
}
SkGlyphRun* SkGlyphRunBuilder::useGlyphRun() {
auto glyphRunList = this->useGlyphRunList();
SkASSERT(glyphRunList->size() == 1);
return &(*glyphRunList)[0];
}
SkGlyphRunList* SkGlyphRunBuilder::useGlyphRunList() {
new ((void*)&fScratchGlyphRunList) SkGlyphRunList{SkSpan<SkGlyphRun>(fGlyphRuns), fUniqueID};
return &fScratchGlyphRunList;
}
size_t SkGlyphRunBuilder::runSize() const { return fDenseIndex.size() - fLastDenseIndex; }
size_t SkGlyphRunBuilder::uniqueSize() const { return fUniqueGlyphs.size() - fLastUniqueIndex; }
void SkGlyphRunBuilder::initialize() {
fUniqueID = 0;
fDenseIndex.clear();
fPositions.clear();
fUniqueGlyphs.clear();
fGlyphRuns.clear();
fLastDenseIndex = 0;
fLastUniqueIndex = 0;
}
SkGlyphID* SkGlyphRunBuilder::addDenseAndUnique(
const SkPaint& paint, const void* bytes, size_t byteLength) {
size_t runSize = 0;
SkGlyphID* glyphIDs = nullptr;
auto encoding = paint.getTextEncoding();
auto typeface = SkPaintPriv::GetTypefaceOrDefault(paint);
if (encoding != SkPaint::kGlyphID_TextEncoding) {
auto tfEncoding = convert_encoding(encoding);
int utfSize = SkUTFN_CountUnichars(tfEncoding, bytes, byteLength);
if (utfSize > 0) {
runSize = SkTo<size_t>(utfSize);
fScratchGlyphIDs.resize(runSize);
typeface->charsToGlyphs(bytes, tfEncoding, fScratchGlyphIDs.data(), runSize);
glyphIDs = fScratchGlyphIDs.data();
}
} else {
runSize = byteLength / 2;
glyphIDs = (SkGlyphID*)bytes;
}
SkASSERT(glyphIDs != nullptr);
if (runSize > 0) {
fGlyphSet.reuse(typeface->countGlyphs(), &fUniqueGlyphs);
for (size_t i = 0; i < runSize; i++) {
fDenseIndex.push_back(fGlyphSet.add(glyphIDs[i]));
}
}
return glyphIDs;
}
void SkGlyphRunBuilder::addGlyphRunToList(
SkGlyphID* temporaryShuntGlyphIDs, SkSpan<const char> text, SkSpan<uint32_t> clusters) {
// Ignore empty runs.
if (fDenseIndex.size() != fLastDenseIndex) {
auto runSize = this->runSize();
auto uniqueSize = this->uniqueSize();
fGlyphRuns.emplace_back(
SkSpan<uint16_t>(&fDenseIndex[fLastDenseIndex], runSize),
SkSpan<SkPoint>(&fPositions[fLastDenseIndex], runSize),
SkSpan<SkGlyphID>(temporaryShuntGlyphIDs, runSize),
SkSpan<SkGlyphID>(&fUniqueGlyphs[fLastDenseIndex], uniqueSize),
text,
clusters);
fLastDenseIndex = fDenseIndex.size();
fLastUniqueIndex = fUniqueGlyphs.size();
}
}
void SkGlyphRunBuilder::drawText(
const SkPaint& paint, const void* bytes, size_t byteLength, SkPoint origin,
SkSpan<const char> text, SkSpan<uint32_t> clusters) {
SkGlyphID* temporaryShuntGlyphIDs = this->addDenseAndUnique(paint, bytes, byteLength);
fScratchAdvances.resize(this->uniqueSize());
{
@ -118,78 +292,38 @@ void SkGlyphRunBuilder::prepareDrawText(
if (paint.getTextAlign() == SkPaint::kCenter_Align) {
len.scale(SK_ScalarHalf);
}
for (size_t i = 0; i < this->runSize(); i++) {
for (size_t i = fLastDenseIndex; i < this->runSize(); i++) {
fPositions[i] -= len;
}
}
this->addGlyphRunToList(temporaryShuntGlyphIDs, text, clusters);
}
void SkGlyphRunBuilder::prepareDrawPosTextH(const SkPaint& paint, const void* bytes,
size_t byteLength, const SkScalar* xpos,
SkScalar constY) {
void SkGlyphRunBuilder::drawPosTextH(const SkPaint& paint, const void* bytes,
size_t byteLength, const SkScalar* xpos,
SkScalar constY,
SkSpan<const char> text, SkSpan<uint32_t> clusters) {
this->initializeDenseAndUnique(paint, bytes, byteLength);
SkGlyphID* temporaryShuntGlyphIDs = this->addDenseAndUnique(paint, bytes, byteLength);
for (size_t i = 0; i < runSize(); i++) {
fPositions.push_back(SkPoint::Make(xpos[i], constY));
}
this->addGlyphRunToList(temporaryShuntGlyphIDs, text, clusters);
}
void SkGlyphRunBuilder::prepareDrawPosText(const SkPaint& paint, const void* bytes,
size_t byteLength, const SkPoint* pos) {
this->initializeDenseAndUnique(paint, bytes, byteLength);
void SkGlyphRunBuilder::drawPosText(const SkPaint& paint, const void* bytes,
size_t byteLength, const SkPoint* pos,
SkSpan<const char> text, SkSpan<uint32_t> clusters) {
SkGlyphID* temporaryShuntGlyphIDs = this->addDenseAndUnique(paint, bytes, byteLength);
for (size_t i = 0; i < runSize(); i++) {
fPositions.push_back(pos[i]);
}
}
SkGlyphRun* SkGlyphRunBuilder::useGlyphRun() {
fScratchGlyphRun.~SkGlyphRun();
new ((void*)&fScratchGlyphRun) SkGlyphRun{SkSpan<uint16_t>(fDenseIndex),
SkSpan<SkPoint>(fPositions),
SkSpan<SkGlyphID>(
fTemporaryShuntGlyphIDs, fDenseIndex.size()),
SkSpan<SkGlyphID>(fUniqueGlyphs)};
return &fScratchGlyphRun;
}
void SkGlyphRunBuilder::initializeDenseAndUnique(
const SkPaint& paint, const void* bytes, size_t byteLength) {
fDenseIndex.clear();
fPositions.clear();
fUniqueGlyphs.clear();
fTemporaryShuntGlyphIDs = nullptr;
size_t runSize = 0;
const SkGlyphID* glyphIDs = nullptr;
auto encoding = paint.getTextEncoding();
auto typeface = SkPaintPriv::GetTypefaceOrDefault(paint);
if (encoding != SkPaint::kGlyphID_TextEncoding) {
auto tfEncoding = convert_encoding(encoding);
int utfSize = SkUTFN_CountUnichars(tfEncoding, bytes, byteLength);
if (utfSize > 0) {
runSize = SkTo<size_t>(utfSize);
fScratchGlyphIDs.resize(runSize);
typeface->charsToGlyphs(bytes, tfEncoding, fScratchGlyphIDs.data(), runSize);
glyphIDs = fScratchGlyphIDs.data();
}
} else {
runSize = byteLength / 2;
glyphIDs = (const SkGlyphID*)bytes;
}
SkASSERT(glyphIDs != nullptr);
if (runSize == 0) { return; }
fTemporaryShuntGlyphIDs = glyphIDs;
fGlyphSet.reuse(typeface->countGlyphs(), &fUniqueGlyphs);
for (size_t i = 0; i < runSize; i++) {
fDenseIndex.push_back(fGlyphSet.add(glyphIDs[i]));
}
this->addGlyphRunToList(temporaryShuntGlyphIDs, text, clusters);
}

104
src/core/SkGlyphRun.h
View File

@ -24,36 +24,32 @@ template <typename T>
class SkSpan {
public:
SkSpan() : fPtr{nullptr}, fSize{0} {}
SkSpan(const T* ptr, size_t size) : fPtr{ptr}, fSize{size} {}
explicit SkSpan(const std::vector<T>& v) : fPtr{v.data()}, fSize{v.size()} {}
const T& operator [] (ptrdiff_t i) const { return fPtr[i]; }
SkSpan(T* ptr, size_t size) : fPtr{ptr}, fSize{size} {}
explicit SkSpan(std::vector<T>& v) : fPtr{v.data()}, fSize{v.size()} {}
SkSpan& operator=( const SkSpan& other ) = default;
T& operator [] (ptrdiff_t i) const { return fPtr[i]; }
T* begin() const { return fPtr; }
T* end() const { return fPtr + fSize; }
const T* cbegin() const { return fPtr; }
const T* cend() const { return fPtr + fSize; }
const T* data() const { return fPtr; }
T* data() const { return fPtr; }
ptrdiff_t size() const { return fSize; }
bool empty() const { return fSize == 0; }
private:
const T* fPtr;
T* fPtr;
size_t fSize;
};
class SkGlyphRun {
public:
SkGlyphRun() = default;
SkGlyphRun(SkSpan<uint16_t> denseIndex,
SkSpan<SkPoint> positions,
SkSpan<SkGlyphID> scratchGlyphs,
SkSpan<SkGlyphID> uniqueGlyphIDs)
: fDenseIndex{denseIndex}
, fPositions{positions}
, fTemporaryShuntGlyphIDs{scratchGlyphs}
, fUniqueGlyphIDs{uniqueGlyphIDs} {
SkASSERT(denseIndex.size() == positions.size());
SkASSERT(denseIndex.size() == scratchGlyphs.size());
}
SkGlyphRun(SkSpan<uint16_t> denseIndex,
SkSpan<SkPoint> positions,
SkSpan<SkGlyphID> scratchGlyphs,
SkSpan<SkGlyphID> uniqueGlyphIDs,
SkSpan<const char> text,
SkSpan<uint32_t> clusters);
// The temporaryShunt calls are to allow inter-operating with existing code while glyph runs
// are developed.
@ -67,19 +63,43 @@ public:
private:
// Indices into the unique glyph IDs. On for each original glyph.
const SkSpan<uint16_t> fDenseIndex;
const SkSpan<uint16_t> fDenseIndex;
// The base line position of all the glyphs in source space.
const SkSpan<SkPoint> fPositions;
const SkSpan<SkPoint> fPositions;
// This is temporary while converting from the old per glyph code to the bulk code.
const SkSpan<SkGlyphID> fTemporaryShuntGlyphIDs;
const SkSpan<SkGlyphID> fTemporaryShuntGlyphIDs;
// The set of unique glyphs in the run.
const SkSpan<SkGlyphID> fUniqueGlyphIDs;
const SkSpan<SkGlyphID> fUniqueGlyphIDs;
// Original text from SkTextBlob if present. Will be empty of not present.
const SkSpan<const char> fText;
// Original clusters from SkTextBlob if present. Will be empty if not present.
const SkSpan<uint32_t> fClusters;
};
class SkGlyphRunList {
const uint64_t fUniqueID{0};
SkSpan<SkGlyphRun> fGlyphRuns;
public:
SkGlyphRunList() = default;
SkGlyphRunList(SkSpan<SkGlyphRun> glyphRuns, uint64_t uniqueID);
uint64_t uniqueID() const { return fUniqueID; }
auto begin() -> decltype(fGlyphRuns.begin()) { return fGlyphRuns.begin(); }
auto end() -> decltype(fGlyphRuns.end()) { return fGlyphRuns.end(); }
auto size() -> decltype(fGlyphRuns.size()) { return fGlyphRuns.size(); }
auto operator [] (ptrdiff_t i) -> decltype(fGlyphRuns[i]) { return fGlyphRuns[i]; }
};
// A faster set implementation that does not need any initialization, and reading the set items
// is order the number of items, and not the size of the universe.
// This implementation is based on the paper by Briggs and Torczon, "An Efficient Representation
// for Sparse Sets"
//
// This implementation assumes that the unique glyphs added are appended to a vector that may
// already have unique glyph from a previous computation. This allows the packing of multiple
// UniqueID sequences in a single vector.
class SkGlyphSet {
public:
SkGlyphSet() = default;
@ -87,15 +107,13 @@ public:
void reuse(uint32_t glyphUniverseSize, std::vector<SkGlyphID>* uniqueGlyphIDs);
private:
uint32_t uniqueSize();
uint32_t fUniverseSize{0};
size_t fStartOfUniqueIDs{0};
std::vector<uint16_t> fIndices;
std::vector<SkGlyphID>* fUniqueGlyphIDs{nullptr};
};
// Currently the old code is passing around SkGlyphRunBuilder because it facilitates working in the
// old single glyph lookup style with the cache. When the lower level code is transitioned over to
// the bulk glyph cache style, then the builder will only be used in the canvas, and only runs will
// be passed around.
class SkGlyphRunBuilder {
public:
SkGlyphRunBuilder() = default;
@ -106,32 +124,50 @@ public:
const SkScalar xpos[], SkScalar constY);
void prepareDrawPosText(
const SkPaint& paint, const void* bytes, size_t byteLength, const SkPoint pos[]);
void prepareTextBlob(const SkPaint& paint, const SkTextBlob& blob, SkPoint origin);
size_t runSize() const {return fDenseIndex.size();}
size_t uniqueSize() const {return fUniqueGlyphs.size();}
SkGlyphRunList* useGlyphRunList();
SkGlyphRun* useGlyphRun();
private:
void initializeDenseAndUnique(const SkPaint& paint, const void* bytes, size_t byteLength);
size_t runSize() const;
size_t uniqueSize() const;
void initialize();
SkGlyphID* addDenseAndUnique(const SkPaint& paint, const void* bytes, size_t byteLength);
void addGlyphRunToList(
SkGlyphID* temporaryShuntGlyphIDs, SkSpan<const char> text, SkSpan<uint32_t> clusters);
void drawText(
const SkPaint& paint, const void* bytes, size_t byteLength, SkPoint origin,
SkSpan<const char> text, SkSpan<uint32_t> clusters);
void drawPosTextH(
const SkPaint& paint, const void* bytes, size_t byteLength,
const SkScalar* xpos, SkScalar constY,
SkSpan<const char> text, SkSpan<uint32_t> clusters);
void drawPosText(
const SkPaint& paint, const void* bytes, size_t byteLength, const SkPoint* pos,
SkSpan<const char> text, SkSpan<uint32_t> clusters);
uint64_t fUniqueID{0};
std::vector<uint16_t> fDenseIndex;
std::vector<SkPoint> fPositions;
std::vector<SkGlyphID> fUniqueGlyphs;
size_t fLastDenseIndex{0};
size_t fLastUniqueIndex{0};
// Used as a temporary for preparing using utfN text.
std::vector<SkGlyphID> fScratchGlyphIDs;
// Used as temporary storage for calculating positions for drawText.
std::vector<SkPoint> fScratchAdvances;
// Used to temporarily use of a glyph run for bulk cache API calls (just an experiment at
// this point).
SkGlyphRun fScratchGlyphRun;
// Vector for accumulating runs. This is later deposited in fScratchGlyphRunList;
std::vector<SkGlyphRun> fGlyphRuns;
// Used as an aid to shunt from glyph runs to drawPosText. It will either be fScratchIDs or
// the bytes passed in.
const SkGlyphID* fTemporaryShuntGlyphIDs{nullptr};
// Used as temporary glyph run for the rest of the Text stack.
SkGlyphRunList fScratchGlyphRunList;
// Used for collecting the set of unique glyphs.
SkGlyphSet fGlyphSet;

66
tests/GlyphRunTest.cpp
View File

@ -7,9 +7,32 @@
#include "SkGlyphRun.h"
#include "SkTextBlob.h"
#include "Test.h"
DEF_TEST(GlyphRunInfo, reporter) {
DEF_TEST(GlyphSetBasic, reporter) {
SkGlyphSet set;
std::vector<SkGlyphID> unique;
set.reuse(10, &unique);
REPORTER_ASSERT(reporter, set.add(7) == 0);
REPORTER_ASSERT(reporter, set.add(3) == 1);
set.reuse(10, &unique);
REPORTER_ASSERT(reporter, set.add(5) == 0);
REPORTER_ASSERT(reporter, set.add(8) == 1);
REPORTER_ASSERT(reporter, set.add(3) == 2);
REPORTER_ASSERT(reporter, unique.size() == 5);
REPORTER_ASSERT(reporter, unique[0] == 7);
REPORTER_ASSERT(reporter, unique[1] == 3);
REPORTER_ASSERT(reporter, unique[2] == 5);
REPORTER_ASSERT(reporter, unique[3] == 8);
REPORTER_ASSERT(reporter, unique[4] == 3);
}
DEF_TEST(GlyphRunBasic, reporter) {
SkGlyphID glyphs[] = {100, 3, 240, 3, 234, 111, 3, 4, 10, 11};
uint16_t count = SK_ARRAY_COUNT(glyphs);
@ -18,5 +41,46 @@ DEF_TEST(GlyphRunInfo, reporter) {
SkGlyphRunBuilder builder;
builder.prepareDrawText(paint, glyphs, count, SkPoint::Make(0, 0));
}
DEF_TEST(GlyphRunBlob, reporter) {
constexpr uint16_t count = 10;
auto tf = SkTypeface::MakeFromName("monospace", SkFontStyle());
SkPaint font;
font.setTypeface(tf);
font.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
font.setTextAlign(SkPaint::kLeft_Align);
font.setStyle(SkPaint::kFill_Style);
font.setHinting(SkPaint::kNormal_Hinting);
font.setTextSize(1u);
SkTextBlobBuilder blobBuilder;
for (int runNum = 0; runNum < 2; runNum++) {
const auto& runBuffer = blobBuilder.allocRunPosH(font, count, runNum);
SkASSERT(runBuffer.utf8text == nullptr);
SkASSERT(runBuffer.clusters == nullptr);
for (int i = 0; i < count; i++) {
runBuffer.glyphs[i] = static_cast<SkGlyphID>(i + runNum * 10);
runBuffer.pos[i] = SkIntToScalar(i + runNum * 10);
}
}
auto blob = blobBuilder.make();
SkPaint paint;
paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
SkGlyphRunBuilder runBuilder;
runBuilder.prepareTextBlob(font, *blob, SkPoint::Make(0, 0));
auto runList = runBuilder.useGlyphRunList();
REPORTER_ASSERT(reporter, runList->size() == 2);
for (auto& run : *runList) {
REPORTER_ASSERT(reporter, run.runSize() == 10);
REPORTER_ASSERT(reporter, run.uniqueSize() == 10);
}
}