void draw_fill(SkCanvas* canvas, const SkRect& rect, SkScalar width) {
if (rect.isEmpty()) {
return;
}
SkPaint paint;
paint.setColor(0x1f1f0f0f);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(width);
SkPath path;
SkScalar maxSide = SkTMax(rect.width(), rect.height()) / 2;
SkPoint center = { rect.fLeft + maxSide, rect.fTop + maxSide };
path.addCircle(center.fX, center.fY, maxSide);
canvas->drawPath(path, paint);
paint.setStyle(SkPaint::kFill_Style);
path.reset();
path.addCircle(center.fX, center.fY, maxSide - width / 2);
paint.setColor(0x3f0f1f3f);
canvas->drawPath(path, paint);
path.reset();
path.setFillType(SkPath::kEvenOdd_FillType);
path.addCircle(center.fX, center.fY, maxSide + width / 2);
SkRect outside = SkRect::MakeXYWH(center.fX - maxSide - width, center.fY - maxSide - width,
(maxSide + width) * 2, (maxSide + width) * 2);
path.addRect(outside);
canvas->drawPath(path, paint);
}
virtual void onDraw(SkCanvas* canvas) {
if (false) test_rev(canvas); // avoid bit rot, suppress warning
SkRect r = { 10, 10, 100, 60 };
SkPath path;
path.addRect(r); test_rev(canvas, path);
canvas->translate(0, 100);
path.offset(20, 20);
path.addRect(r); test_rev(canvas, path);
canvas->translate(0, 100);
path.reset();
path.moveTo(10, 10); path.lineTo(30, 30);
path.addOval(r);
r.offset(50, 20);
path.addOval(r);
test_rev(canvas, path);
SkPaint paint;
paint.setTextSize(SkIntToScalar(100));
SkTypeface* hira = SkTypeface::CreateFromName("Hiragino Maru Gothic Pro", SkTypeface::kNormal);
SkSafeUnref(paint.setTypeface(hira));
path.reset();
paint.getTextPath("e", 1, 50, 50, &path);
canvas->translate(0, 100);
test_rev(canvas, path);
}
static void test_undetected_paths(skiatest::Reporter* reporter) {
SkPath path;
path.moveTo(0, 62.5f);
path.lineTo(0, 3.5f);
path.conicTo(0, 0, 3.5f, 0, 0.70710677f);
path.lineTo(196.5f, 0);
path.conicTo(200, 0, 200, 3.5f, 0.70710677f);
path.lineTo(200, 62.5f);
path.conicTo(200, 66, 196.5f, 66, 0.70710677f);
path.lineTo(3.5f, 66);
path.conicTo(0, 66, 0, 62.5, 0.70710677f);
path.close();
force_path_contains_rrect(reporter, path);
path.reset();
path.moveTo(0, 81.5f);
path.lineTo(0, 3.5f);
path.conicTo(0, 0, 3.5f, 0, 0.70710677f);
path.lineTo(149.5, 0);
path.conicTo(153, 0, 153, 3.5f, 0.70710677f);
path.lineTo(153, 81.5f);
path.conicTo(153, 85, 149.5f, 85, 0.70710677f);
path.lineTo(3.5f, 85);
path.conicTo(0, 85, 0, 81.5f, 0.70710677f);
path.close();
force_path_contains_rrect(reporter, path);
path.reset();
path.moveTo(14, 1189);
path.lineTo(14, 21);
path.conicTo(14, 14, 21, 14, 0.70710677f);
path.lineTo(1363, 14);
path.conicTo(1370, 14, 1370, 21, 0.70710677f);
path.lineTo(1370, 1189);
path.conicTo(1370, 1196, 1363, 1196, 0.70710677f);
path.lineTo(21, 1196);
path.conicTo(14, 1196, 14, 1189, 0.70710677f);
path.close();
force_path_contains_rrect(reporter, path);
path.reset();
path.moveTo(14, 1743);
path.lineTo(14, 21);
path.conicTo(14, 14, 21, 14, 0.70710677f);
path.lineTo(1363, 14);
path.conicTo(1370, 14, 1370, 21, 0.70710677f);
path.lineTo(1370, 1743);
path.conicTo(1370, 1750, 1363, 1750, 0.70710677f);
path.lineTo(21, 1750);
path.conicTo(14, 1750, 14, 1743, 0.70710677f);
path.close();
force_path_contains_rrect(reporter, path);
}
virtual void onDraw(SkCanvas* canvas) {
// explicitly add spaces, to test a prev. bug
const char* text = "Ham bur ge fons";
int len = SkToInt(strlen(text));
SkPath path;
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextSize(SkIntToScalar(48));
canvas->translate(SkIntToScalar(10), SkIntToScalar(64));
canvas->drawText(text, len, 0, 0, paint);
paint.getTextPath(text, len, 0, 0, &path);
strokePath(canvas, path);
path.reset();
SkAutoTArray<SkPoint> pos(len);
SkAutoTArray<SkScalar> widths(len);
paint.getTextWidths(text, len, &widths[0]);
SkLCGRandom rand;
SkScalar x = SkIntToScalar(20);
SkScalar y = SkIntToScalar(100);
for (int i = 0; i < len; ++i) {
pos[i].set(x, y + rand.nextSScalar1() * 24);
x += widths[i];
}
canvas->translate(0, SkIntToScalar(64));
canvas->drawPosText(text, len, &pos[0], paint);
paint.getPosTextPath(text, len, &pos[0], &path);
strokePath(canvas, path);
}
// Need to exercise drawing an inverse-path whose bounds intersect the clip,
// but whose edges do not (since its a quad which draws only in the bottom half
// of its bounds).
// In the debug build, we used to assert in this case, until it was fixed.
//
static void test_inversepathwithclip() {
SkPath path;
path.moveTo(0, 20);
path.quadTo(10, 10, 20, 20);
path.toggleInverseFillType();
SkPaint paint;
auto surface(SkSurface::MakeRasterN32Premul(640, 480));
SkCanvas* canvas = surface->getCanvas();
canvas->save();
canvas->clipRect(SkRect::MakeWH(19, 11));
paint.setAntiAlias(false);
canvas->drawPath(path, paint);
paint.setAntiAlias(true);
canvas->drawPath(path, paint);
canvas->restore();
// Now do the test again, with the path flipped, so we only draw in the
// top half of our bounds, and have the clip intersect our bounds at the
// bottom.
path.reset(); // preserves our filltype
path.moveTo(0, 10);
path.quadTo(10, 20, 20, 10);
canvas->clipRect(SkRect::MakeXYWH(0, 19, 19, 11));
paint.setAntiAlias(false);
canvas->drawPath(path, paint);
paint.setAntiAlias(true);
canvas->drawPath(path, paint);
}
void operate(const SkPath& one, const SkPath& two, ShapeOp op, SkPath& result) {
result.reset();
result.setFillType(SkPath::kEvenOdd_FillType);
// turn path into list of segments
SkTArray<Op::Contour> contours;
// FIXME: add self-intersecting cubics' T values to segment
Op::EdgeBuilder builder(one, contours);
const int aXorMask = builder.xorMask();
builder.addOperand(two);
const int bXorMask = builder.xorMask();
builder.finish();
SkTDArray<Op::Contour*> contourList;
makeContourList(contours, contourList);
Op::Contour** currentPtr = contourList.begin();
if (!currentPtr) {
return;
}
Op::Contour** listEnd = contourList.end();
// find all intersections between segments
do {
Op::Contour** nextPtr = currentPtr;
Op::Contour* current = *currentPtr++;
Op::Contour* next;
do {
next = *nextPtr++;
} while (addIntersectTs(current, next) && nextPtr != listEnd);
} while (currentPtr != listEnd);
// eat through coincident edges
coincidenceCheck(contourList);
fixOtherTIndex(contourList);
// construct closed contours
Op::PathWrapper wrapper(result);
bridgeOp(contourList, op, aXorMask, bXorMask, wrapper);
}
static void test_path_bounds(skiatest::Reporter* reporter) {
SkPath path;
SkAAClip clip;
const int height = 40;
const SkScalar sheight = SkIntToScalar(height);
path.addOval(SkRect::MakeWH(sheight, sheight));
REPORTER_ASSERT(reporter, sheight == path.getBounds().height());
clip.setPath(path, nullptr, true);
REPORTER_ASSERT(reporter, height == clip.getBounds().height());
// this is the trimmed height of this cubic (with aa). The critical thing
// for this test is that it is less than height, which represents just
// the bounds of the path's control-points.
//
// This used to fail until we tracked the MinY in the BuilderBlitter.
//
const int teardrop_height = 12;
path.reset();
imoveTo(path, 0, 20);
icubicTo(path, 40, 40, 40, 0, 0, 20);
REPORTER_ASSERT(reporter, sheight == path.getBounds().height());
clip.setPath(path, nullptr, true);
REPORTER_ASSERT(reporter, teardrop_height == clip.getBounds().height());
}
virtual void onDraw(int loops, SkCanvas* canvas) {
SkPaint paint;
this->setupPaint(&paint);
for (int i = 0; i < loops; ++i) {
// jostle the clip regions each time to prevent caching
fClipRect.offset((i % 2) == 0 ? SkIntToScalar(10) : SkIntToScalar(-10), 0);
fClipPath.reset();
fClipPath.addRoundRect(fClipRect,
SkIntToScalar(5), SkIntToScalar(5));
SkASSERT(fClipPath.isConvex());
canvas->save();
#if 1
if (fDoPath) {
canvas->clipPath(fClipPath, kReplace_SkClipOp, fDoAA);
} else {
canvas->clipRect(fClipRect, kReplace_SkClipOp, fDoAA);
}
canvas->drawRect(fDrawRect, paint);
#else
// this path tests out directly draw the clip primitive
// use it to comparing just drawing the clip vs. drawing using
// the clip
if (fDoPath) {
canvas->drawPath(fClipPath, paint);
} else {
canvas->drawRect(fClipRect, paint);
}
#endif
canvas->restore();
}
}
void SkPathStroker::finishContour(bool close, bool currIsLine) {
if (fSegmentCount > 0) {
SkPoint pt;
if (close) {
fJoiner(&fOuter, &fInner, fPrevUnitNormal, fPrevPt,
fFirstUnitNormal, fRadius, fInvMiterLimit,
fPrevIsLine, currIsLine);
fOuter.close();
// now add fInner as its own contour
fInner.getLastPt(&pt);
fOuter.moveTo(pt.fX, pt.fY);
fOuter.reversePathTo(fInner);
fOuter.close();
} else { // add caps to start and end
// cap the end
fInner.getLastPt(&pt);
fCapper(&fOuter, fPrevPt, fPrevNormal, pt,
currIsLine ? &fInner : NULL);
fOuter.reversePathTo(fInner);
// cap the start
fCapper(&fOuter, fFirstPt, -fFirstNormal, fFirstOuterPt,
fPrevIsLine ? &fInner : NULL);
fOuter.close();
}
}
fInner.reset();
fSegmentCount = -1;
}
static void patheffect_slide(SkCanvas* canvas) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
SkPath path;
path.moveTo(20, 20);
path.lineTo(70, 120);
path.lineTo(120, 30);
path.lineTo(170, 80);
path.lineTo(240, 50);
size_t i;
canvas->save();
for (i = 0; i < SK_ARRAY_COUNT(gPE); i++) {
gPE[i](&paint);
canvas->drawPath(path, paint);
canvas->translate(0, 75);
}
canvas->restore();
path.reset();
SkRect r = { 0, 0, 250, 120 };
path.addOval(r, SkPath::kCW_Direction);
r.inset(50, 50);
path.addRect(r, SkPath::kCCW_Direction);
canvas->translate(320, 20);
for (i = 0; i < SK_ARRAY_COUNT(gPE2); i++) {
gPE2[i](&paint);
canvas->drawPath(path, paint);
canvas->translate(0, 160);
}
}
void SampleWindow::onSizeChange() {
this->INHERITED::onSizeChange();
SkView::F2BIter iter(this);
SkView* view = iter.next();
view->setSize(this->width(), this->height());
// rebuild our clippath
{
const SkScalar W = this->width();
const SkScalar H = this->height();
fClipPath.reset();
#if 0
for (SkScalar y = SK_Scalar1; y < H; y += SkIntToScalar(32)) {
SkRect r;
r.set(SK_Scalar1, y, SkIntToScalar(30), y + SkIntToScalar(30));
for (; r.fLeft < W; r.offset(SkIntToScalar(32), 0))
fClipPath.addRect(r);
}
#else
SkRect r;
r.set(0, 0, W, H);
fClipPath.addRect(r, SkPath::kCCW_Direction);
r.set(W/4, H/4, W*3/4, H*3/4);
fClipPath.addRect(r, SkPath::kCW_Direction);
#endif
}
this->updateTitle(); // to refresh our config
}
DEF_TEST(contour_measure, reporter) {
SkPath path;
path.addCircle(0, 0, 100);
path.addCircle(0, 0, 10);
SkContourMeasureIter fact(path, false);
path.reset(); // we should not need the path avert we created the factory
auto cm0 = fact.next();
auto cm1 = fact.next();
REPORTER_ASSERT(reporter, cm0->isClosed());
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(cm0->length(), 200 * SK_ScalarPI, 1.5f));
test_90_degrees(cm0, 100, reporter);
REPORTER_ASSERT(reporter, cm1->isClosed());
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(cm1->length(), 20 * SK_ScalarPI, 0.5f));
test_90_degrees(cm1, 10, reporter);
auto cm2 = fact.next();
REPORTER_ASSERT(reporter, !cm2);
test_empty_contours(reporter);
test_MLM_contours(reporter);
}
void onDraw(SkCanvas* canvas) override {
SkPaint p;
p.setColor(SK_ColorRED);
p.setAntiAlias(true);
canvas->clear(0xFFFFFFFF);
canvas->save();
canvas->rotate(1);
const SkScalar R = 115.2f, C = 128.0f;
SkPath path;
path.moveTo(C + R, C);
for (int i = 1; i < 8; ++i) {
SkScalar a = 2.6927937f * i;
SkScalar cosine;
SkScalar sine = SkScalarSinCos(a, &cosine);
path.lineTo(C + R * cosine, C + R * sine);
}
canvas->drawPath(path, p);
canvas->restore();
canvas->save();
canvas->translate(200, 0);
canvas->rotate(1);
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeWidth(5);
canvas->drawPath(path, p);
canvas->restore();
// The following two paths test if we correctly cumulates the alpha on the middle pixel
// column where the left rect and the right rect abut.
p.setStyle(SkPaint::kFill_Style);
canvas->translate(0, 300);
path.reset();
path.addRect({20, 20, 100.4999f, 100});
path.addRect({100.5001f, 20, 200, 100});
canvas->drawPath(path, p);
canvas->translate(300, 0);
path.reset();
path.addRect({20, 20, 100.1f, 100});
path.addRect({100.9f, 20, 200, 100});
canvas->drawPath(path, p);
}
void
skiaDrawLine(caskbench_context_t *ctx, shapes_t *args)
{
path.reset();
path.moveTo(args->x, args->y);
path.lineTo(args->x + args->width, args->y + args->height);
ctx->skia_canvas->drawPath(path, *(ctx->skia_paint));
}
void
skiaDrawQuadraticCurve(caskbench_context_t *ctx, shapes_t *args)
{
path.reset();
path.moveTo(args->x, args->y);
path.rQuadTo(args->dx1, args->dy1,
args->width, args->height);
ctx->skia_canvas->drawPath(path, *(ctx->skia_paint));
}
/**
* Called on a background thread. Here we can only modify fBackPaths.
*/
void runAnimationTask(double t, double dt, int w, int h) override {
const float tsec = static_cast<float>(t);
this->INHERITED::runAnimationTask(t, 0.5 * dt, w, h);
for (int i = 0; i < kNumPaths; ++i) {
const Glyph& glyph = fGlyphs[i];
const SkMatrix& backMatrix = fBackMatrices[i];
const Sk2f matrix[3] = {
Sk2f(backMatrix.getScaleX(), backMatrix.getSkewY()),
Sk2f(backMatrix.getSkewX(), backMatrix.getScaleY()),
Sk2f(backMatrix.getTranslateX(), backMatrix.getTranslateY())
};
SkPath* backpath = &fBackPaths[i];
backpath->reset();
backpath->setFillType(SkPath::kEvenOdd_FillType);
SkPath::RawIter iter(glyph.fPath);
SkPath::Verb verb;
SkPoint pts[4];
while ((verb = iter.next(pts)) != SkPath::kDone_Verb) {
switch (verb) {
case SkPath::kMove_Verb: {
SkPoint pt = fWaves.apply(tsec, matrix, pts[0]);
backpath->moveTo(pt.x(), pt.y());
break;
}
case SkPath::kLine_Verb: {
SkPoint endpt = fWaves.apply(tsec, matrix, pts[1]);
backpath->lineTo(endpt.x(), endpt.y());
break;
}
case SkPath::kQuad_Verb: {
SkPoint controlPt = fWaves.apply(tsec, matrix, pts[1]);
SkPoint endpt = fWaves.apply(tsec, matrix, pts[2]);
backpath->quadTo(controlPt.x(), controlPt.y(), endpt.x(), endpt.y());
break;
}
case SkPath::kClose_Verb: {
backpath->close();
break;
}
case SkPath::kCubic_Verb:
case SkPath::kConic_Verb:
case SkPath::kDone_Verb:
SK_ABORT("Unexpected path verb");
break;
}
}
}
}
static void test_convexity(skiatest::Reporter* reporter) {
static const SkPath::Convexity C = SkPath::kConcave_Convexity;
static const SkPath::Convexity V = SkPath::kConvex_Convexity;
SkPath path;
REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path));
path.addCircle(0, 0, 10);
REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path));
path.addCircle(0, 0, 10); // 2nd circle
REPORTER_ASSERT(reporter, C == SkPath::ComputeConvexity(path));
path.reset();
path.addRect(0, 0, 10, 10, SkPath::kCCW_Direction);
REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path));
path.reset();
path.addRect(0, 0, 10, 10, SkPath::kCW_Direction);
REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path));
static const struct {
const char* fPathStr;
SkPath::Convexity fExpectedConvexity;
} gRec[] = {
{ "", SkPath::kConvex_Convexity },
{ "0 0", SkPath::kConvex_Convexity },
{ "0 0 10 10", SkPath::kConvex_Convexity },
{ "0 0 10 10 20 20 0 0 10 10", SkPath::kConcave_Convexity },
{ "0 0 10 10 10 20", SkPath::kConvex_Convexity },
{ "0 0 10 10 10 0", SkPath::kConvex_Convexity },
{ "0 0 10 10 10 0 0 10", SkPath::kConcave_Convexity },
{ "0 0 10 0 0 10 -10 -10", SkPath::kConcave_Convexity },
};
for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); ++i) {
SkPath path;
setFromString(&path, gRec[i].fPathStr);
SkPath::Convexity c = SkPath::ComputeConvexity(path);
REPORTER_ASSERT(reporter, c == gRec[i].fExpectedConvexity);
}
}
DEF_TEST(PathMeasureConic, reporter) {
SkPoint stdP, hiP, pts[] = {{0,0}, {100,0}, {100,0}};
SkPath p;
p.moveTo(0, 0);
p.conicTo(pts[1], pts[2], 1);
SkPathMeasure stdm(p, false);
REPORTER_ASSERT(reporter, stdm.getPosTan(20, &stdP, nullptr));
p.reset();
p.moveTo(0, 0);
p.conicTo(pts[1], pts[2], 10);
stdm.setPath(&p, false);
REPORTER_ASSERT(reporter, stdm.getPosTan(20, &hiP, nullptr));
REPORTER_ASSERT(reporter, 19.5f < stdP.fX && stdP.fX < 20.5f);
REPORTER_ASSERT(reporter, 19.5f < hiP.fX && hiP.fX < 20.5f);
}
void
skiaDrawTriangle(caskbench_context_t *ctx, shapes_t *args)
{
// Temporarily disable anti-aliasing to work around crash in GlShader
ctx->skia_paint->setAntiAlias(false);
path.reset();
path.moveTo(args->x, args->y + 2*args->radius);
path.rLineTo(2*args->radius, 0);
path.rLineTo(-args->radius, -2*args->radius);
path.close();
ctx->skia_canvas->drawPath(path, *(ctx->skia_paint));
ctx->skia_paint->setAntiAlias(true);
}
void
skiaDrawStar(caskbench_context_t *ctx, shapes_t *args)
{
int px = args->x + 2*args->radius * star_points[0][0]/200.0;
int py = args->y + 2*args->radius * star_points[0][1]/200.0;
path.reset();
path.moveTo(px, py);
for (int p = 1; p < 10; p++ ) {
px = args->x + 2*args->radius * star_points[p][0]/200.0;
py = args->y + 2*args->radius * star_points[p][1]/200.0;
path.lineTo(px, py);
}
path.close();
ctx->skia_canvas->drawPath(path, *(ctx->skia_paint));
}
virtual void onDraw(SkCanvas* canvas) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
SkPath path;
path.moveTo(20, 20);
path.lineTo(70, 120);
path.lineTo(120, 30);
path.lineTo(170, 80);
path.lineTo(240, 50);
size_t i;
canvas->save();
for (i = 0; i < SK_ARRAY_COUNT(gPE); i++) {
gPE[i](&paint);
canvas->drawPath(path, paint);
canvas->translate(0, 75);
}
canvas->restore();
path.reset();
SkRect r = { 0, 0, 250, 120 };
path.addOval(r, SkPath::kCW_Direction);
r.inset(50, 50);
path.addRect(r, SkPath::kCCW_Direction);
canvas->translate(320, 20);
for (i = 0; i < SK_ARRAY_COUNT(gPE2); i++) {
gPE2[i](&paint);
canvas->drawPath(path, paint);
canvas->translate(0, 160);
}
SkIRect rect = SkIRect::MakeXYWH(20, 20, 60, 60);
for (i = 0; i < SK_ARRAY_COUNT(gPE); i++) {
SkPaint p;
p.setAntiAlias(true);
p.setStyle(SkPaint::kFill_Style);
gPE[i](&p);
canvas->drawIRect(rect, p);
canvas->translate(75, 0);
}
}
static void writePng(const SkConic& c, const SkConic ch[2], const char* name) {
const int scale = 10;
SkConic conic, chopped[2];
for (int index = 0; index < 3; ++index) {
conic.fPts[index].fX = c.fPts[index].fX * scale;
conic.fPts[index].fY = c.fPts[index].fY * scale;
for (int chIndex = 0; chIndex < 2; ++chIndex) {
chopped[chIndex].fPts[index].fX = ch[chIndex].fPts[index].fX * scale;
chopped[chIndex].fPts[index].fY = ch[chIndex].fPts[index].fY * scale;
}
}
conic.fW = c.fW;
chopped[0].fW = ch[0].fW;
chopped[1].fW = ch[1].fW;
SkBitmap bitmap;
SkRect bounds;
conic.computeTightBounds(&bounds);
bounds.outset(10, 10);
bitmap.tryAllocPixels(SkImageInfo::MakeN32Premul(
SkScalarRoundToInt(bounds.width()), SkScalarRoundToInt(bounds.height())));
SkCanvas canvas(bitmap);
SkPaint paint;
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
canvas.translate(-bounds.fLeft, -bounds.fTop);
canvas.drawColor(SK_ColorWHITE);
SkPath path;
path.moveTo(conic.fPts[0]);
path.conicTo(conic.fPts[1], conic.fPts[2], conic.fW);
paint.setARGB(0x80, 0xFF, 0, 0);
canvas.drawPath(path, paint);
path.reset();
path.moveTo(chopped[0].fPts[0]);
path.conicTo(chopped[0].fPts[1], chopped[0].fPts[2], chopped[0].fW);
path.moveTo(chopped[1].fPts[0]);
path.conicTo(chopped[1].fPts[1], chopped[1].fPts[2], chopped[1].fW);
paint.setARGB(0x80, 0, 0, 0xFF);
canvas.drawPath(path, paint);
SkString filename("c:\\Users\\caryclark\\Documents\\");
filename.appendf("%s.png", name);
SkImageEncoder::EncodeFile(filename.c_str(), bitmap,
SkImageEncoder::kPNG_Type, 100);
}
DEF_TEST(cubic_scan_error_crbug_844457_and_845489, reporter) {
auto surface(SkSurface::MakeRasterN32Premul(100, 100));
SkCanvas* canvas = surface->getCanvas();
SkPaint p;
SkPath path;
path.moveTo(-30/64.0, -31/64.0);
path.cubicTo(-31/64.0, -31/64,-31/64.0, -31/64,-31/64.0, 100);
path.lineTo(100, 100);
canvas->drawPath(path, p);
// May need to define SK_RASTERIZE_EVEN_ROUNDING to trigger the need for this test
path.reset();
path.moveTo(-30/64.0f, -31/64.0f + 1/256.0f);
path.cubicTo(-31/64.0f + 1/256.0f, -31/64.0f + 1/256.0f,
-31/64.0f + 1/256.0f, -31/64.0f + 1/256.0f,
-31/64.0f + 1/256.0f, 100);
path.lineTo(100, 100);
canvas->drawPath(path, p);
}
static void writeDPng(const SkDConic& dC, const char* name) {
const int scale = 5;
SkDConic dConic = {{{ {dC.fPts[0].fX * scale, dC.fPts[0].fY * scale },
{dC.fPts[1].fX * scale, dC.fPts[1].fY * scale },
{dC.fPts[2].fX * scale, dC.fPts[2].fY * scale }}}, dC.fWeight };
SkBitmap bitmap;
SkDRect bounds;
bounds.setBounds(dConic);
bounds.fLeft -= 10;
bounds.fTop -= 10;
bounds.fRight += 10;
bounds.fBottom += 10;
bitmap.tryAllocPixels(SkImageInfo::MakeN32Premul(
SkScalarRoundToInt(SkDoubleToScalar(bounds.width())),
SkScalarRoundToInt(SkDoubleToScalar(bounds.height()))));
SkCanvas canvas(bitmap);
SkPaint paint;
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
canvas.translate(SkDoubleToScalar(-bounds.fLeft), SkDoubleToScalar(-bounds.fTop));
canvas.drawColor(SK_ColorWHITE);
SkPath path;
path.moveTo(dConic.fPts[0].asSkPoint());
path.conicTo(dConic.fPts[1].asSkPoint(), dConic.fPts[2].asSkPoint(), dConic.fWeight);
paint.setARGB(0x80, 0xFF, 0, 0);
canvas.drawPath(path, paint);
path.reset();
const int chops = 2;
for (int tIndex = 0; tIndex < chops; ++tIndex) {
SkDConic chopped = dConic.subDivide(tIndex / (double) chops,
(tIndex + 1) / (double) chops);
path.moveTo(chopped.fPts[0].asSkPoint());
path.conicTo(chopped.fPts[1].asSkPoint(), chopped.fPts[2].asSkPoint(), chopped.fWeight);
}
paint.setARGB(0x80, 0, 0, 0xFF);
canvas.drawPath(path, paint);
SkString filename("c:\\Users\\caryclark\\Documents\\");
filename.appendf("%s.png", name);
SkImageEncoder::EncodeFile(filename.c_str(), bitmap,
SkImageEncoder::kPNG_Type, 100);
}
DEF_TEST(SkOpBuilderFuzz665, reporter) {
SkPath path;
path.setFillType(SkPath::kEvenOdd_FillType);
path.moveTo(SkBits2Float(0xcc4264a7), SkBits2Float(0x4bb12e50)); // -5.0959e+07f, 2.32235e+07f
path.lineTo(SkBits2Float(0xcc4264b0), SkBits2Float(0x4bb12e48)); // -5.0959e+07f, 2.32234e+07f
path.lineTo(SkBits2Float(0xcc4264a7), SkBits2Float(0x4bb12e50)); // -5.0959e+07f, 2.32235e+07f
path.close();
SkPath path1(path);
path.reset();
path.setFillType(SkPath::kWinding_FillType);
path.moveTo(SkBits2Float(0x43213333), SkBits2Float(0x43080000)); // 161.2f, 136
path.lineTo(SkBits2Float(0x43038000), SkBits2Float(0x43080000)); // 131.5f, 136
path.cubicTo(SkBits2Float(0x43038000), SkBits2Float(0x42f00000), SkBits2Float(0x42f16666), SkBits2Float(0x42d53333), SkBits2Float(0x42d3cccd), SkBits2Float(0x42cd6666)); // 131.5f, 120, 120.7f, 106.6f, 105.9f, 102.7f
path.lineTo(SkBits2Float(0x42e33333), SkBits2Float(0x42940000)); // 113.6f, 74
SkPath path2(path);
SkOpBuilder builder;
builder.add(path1, kUnion_SkPathOp);
builder.add(path2, kUnion_SkPathOp);
SkPath result;
builder.resolve(&result);
}
static void draw_fins(SkCanvas* canvas, const SkPoint& offset, float angle, const SkPaint& paint) {
SkScalar cos, sin;
// first fin
sin = SkScalarSinCos(angle + (SK_ScalarPI/4), &cos);
sin *= kRadius / 2.0f;
cos *= kRadius / 2.0f;
SkPath p;
p.moveTo(offset.fX, offset.fY);
p.lineTo(offset.fX + cos, offset.fY + sin);
canvas->drawPath(p, paint);
// second fin
sin = SkScalarSinCos(angle - (SK_ScalarPI/4), &cos);
sin *= kRadius / 2.0f;
cos *= kRadius / 2.0f;
p.reset();
p.moveTo(offset.fX, offset.fY);
p.lineTo(offset.fX + cos, offset.fY + sin);
canvas->drawPath(p, paint);
}
void onDraw(SkCanvas* canvas) override {
SkRect r = { 10, 10, 100, 60 };
SkPath path;
path.addRect(r); test_rev(canvas, path);
canvas->translate(0, 100);
path.offset(20, 20);
path.addRect(r); test_rev(canvas, path);
canvas->translate(0, 100);
path.reset();
path.moveTo(10, 10); path.lineTo(30, 30);
path.addOval(r);
r.offset(50, 20);
path.addOval(r);
test_rev(canvas, path);
path = hiragino_maru_goth_pro_e();
canvas->translate(0, 100);
test_rev(canvas, path);
}
// Need to exercise drawing an inverse-path whose bounds intersect the clip,
// but whose edges do not (since its a quad which draws only in the bottom half
// of its bounds).
// In the debug build, we used to assert in this case, until it was fixed.
//
static void test_inversepathwithclip(skiatest::Reporter* reporter) {
SkPath path;
path.moveTo(0, SkIntToScalar(20));
path.quadTo(SkIntToScalar(10), SkIntToScalar(10),
SkIntToScalar(20), SkIntToScalar(20));
path.toggleInverseFillType();
SkPaint paint;
SkAutoTUnref<SkCanvas> canvas(new_canvas(640, 480));
canvas.get()->save();
canvas.get()->clipRect(SkRect::MakeWH(SkIntToScalar(19), SkIntToScalar(11)));
paint.setAntiAlias(false);
canvas.get()->drawPath(path, paint);
paint.setAntiAlias(true);
canvas.get()->drawPath(path, paint);
canvas.get()->restore();
// Now do the test again, with the path flipped, so we only draw in the
// top half of our bounds, and have the clip intersect our bounds at the
// bottom.
path.reset(); // preserves our filltype
path.moveTo(0, SkIntToScalar(10));
path.quadTo(SkIntToScalar(10), SkIntToScalar(20),
SkIntToScalar(20), SkIntToScalar(10));
canvas.get()->clipRect(SkRect::MakeXYWH(SkIntToScalar(0), SkIntToScalar(19),
SkIntToScalar(19), SkIntToScalar(11)));
paint.setAntiAlias(false);
canvas.get()->drawPath(path, paint);
paint.setAntiAlias(true);
canvas.get()->drawPath(path, paint);
}
// aaclip.setRegion should create idential masks to the region
static void test_rgn(skiatest::Reporter* reporter) {
SkRandom rand;
for (int i = 0; i < 1000; i++) {
SkRegion rgn;
make_rand_rgn(&rgn, rand);
REPORTER_ASSERT(reporter, equalsAAClip(rgn));
}
{
SkRegion rgn;
SkPath path;
path.addCircle(0, 0, SkIntToScalar(30));
setRgnToPath(&rgn, path);
REPORTER_ASSERT(reporter, equalsAAClip(rgn));
path.reset();
path.moveTo(0, 0);
path.lineTo(SkIntToScalar(100), 0);
path.lineTo(SkIntToScalar(100 - 20), SkIntToScalar(20));
path.lineTo(SkIntToScalar(20), SkIntToScalar(20));
setRgnToPath(&rgn, path);
REPORTER_ASSERT(reporter, equalsAAClip(rgn));
}
}
static void test_stroke(SkCanvas* canvas) {
if (true) {
SkPath path;
dump(path);
path.reset(); path.moveTo(0, 0);
dump(path);
path.reset(); path.moveTo(100, 100);
dump(path);
path.reset(); path.moveTo(0, 0); path.moveTo(100, 100);
dump(path);
path.reset(); path.moveTo(0, 0); path.lineTo(100, 100);
dump(path);
path.reset(); path.moveTo(0, 0); path.lineTo(100, 100); path.moveTo(200, 200);
dump(path);
}
#if 0
// TEST 1 - The rectangle as it's expected to look
var canvas = document.createElement('canvas');
document.body.appendChild(canvas);
var ctx = canvas.getContext("2d");
#else
SkJSCanvas ctx(canvas);
#endif
ctx.save();
ctx.lineWidth = 2;
ctx.beginPath();
ctx.moveTo(10, 100);
ctx.lineTo(150, 100);
ctx.lineTo(150, 15);
ctx.lineTo(10, 15);
ctx.closePath();
// no extra moveTo here
// ctx.moveTo(175, 125);
ctx.stroke();
ctx.restore();
ctx.fillText("As Expected", 10, 10);
#if 0
// TEST 2 - Includes an extra moveTo call before stroke; the rectangle appears larger
canvas = document.createElement('canvas');
document.body.appendChild(canvas);
ctx = canvas.getContext("2d");
#else
canvas->translate(200, 0);
#endif
ctx.save();
ctx.lineWidth = 2;
ctx.beginPath();
ctx.moveTo(10, 100);
ctx.lineTo(150, 100);
ctx.lineTo(150, 15);
ctx.lineTo(10, 15);
ctx.closePath();
ctx.moveTo(175, 125);
ctx.stroke();
ctx.restore();
ctx.fillText("Larger Rectangle", 10, 10);
#if 0
// TEST 3 - Identical to test 2 except the line width is 1
canvas = document.createElement('canvas');
document.body.appendChild(canvas);
ctx = canvas.getContext("2d");
#else
canvas->translate(200, 0);
#endif
ctx.save();
ctx.lineWidth = 1;
ctx.beginPath();
ctx.moveTo(10, 100);
ctx.lineTo(150, 100);
ctx.lineTo(150, 15);
ctx.lineTo(10, 15);
ctx.closePath();
ctx.moveTo(175, 125);
ctx.stroke();
ctx.restore();
ctx.fillText("As Expected - line width 1", 10, 10);
}