virtual void onDraw(SkCanvas* canvas) {
constexpr SkScalar kOffset = 35000.0f;
constexpr SkScalar kExtents = 1000.0f;
SkPictureRecorder recorder;
// We record a picture of huge vertical extents in which we clear the canvas to red, create
// a 'extents' by 'extents' round rect clip at a vertical offset of 'offset', then draw
// green into that.
SkCanvas* rec = recorder.beginRecording(kExtents, kOffset + kExtents, nullptr, 0);
rec->drawColor(SK_ColorRED);
rec->save();
SkRect r = SkRect::MakeXYWH(-kExtents, kOffset - kExtents, 2 * kExtents, 2 * kExtents);
SkPath p;
p.addRoundRect(r, 5, 5);
rec->clipPath(p, true);
rec->drawColor(SK_ColorGREEN);
rec->restore();
sk_sp<SkPicture> pict(recorder.finishRecordingAsPicture());
// Next we play that picture into another picture of the same size.
pict->playback(recorder.beginRecording(pict->cullRect().width(),
pict->cullRect().height(),
nullptr, 0));
sk_sp<SkPicture> pict2(recorder.finishRecordingAsPicture());
// Finally we play the part of that second picture that should be green into the canvas.
canvas->save();
canvas->translate(kExtents / 2, -(kOffset - kExtents / 2));
pict2->playback(canvas);
canvas->restore();
// If the image is red, we erroneously decided the clipPath was empty and didn't record
// the green drawColor, if it's green we're all good.
}
virtual void onDrawContent(SkCanvas* canvas) {
canvas->drawColor(SK_ColorWHITE);
canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
static const CanvasProc gProc[] = {
show_text, show_thick, show_hair, show_fill
};
SkRect r = { 0, 0, SkIntToScalar(W), SkIntToScalar(H) };
SkPath clipPath;
r.inset(SK_Scalar1 / 4, SK_Scalar1 / 4);
clipPath.addRoundRect(r, SkIntToScalar(20), SkIntToScalar(20));
// clipPath.toggleInverseFillType();
for (int aa = 0; aa <= 1; ++aa) {
canvas->save();
for (size_t i = 0; i < SK_ARRAY_COUNT(gProc); ++i) {
canvas->save();
canvas->clipPath(clipPath, SkRegion::kIntersect_Op, true);
// canvas->drawColor(SK_ColorWHITE);
gProc[i](canvas, SkToBool(aa));
canvas->restore();
canvas->translate(W * SK_Scalar1 * 8 / 7, 0);
}
canvas->restore();
canvas->translate(0, H * SK_Scalar1 * 8 / 7);
}
}
PathEffectView()
{
SkRandom rand;
int steps = 20;
SkScalar dist = SkIntToScalar(400);
SkScalar x = SkIntToScalar(20);
SkScalar y = SkIntToScalar(50);
fPath.moveTo(x, y);
for (int i = 0; i < steps; i++)
{
x += dist/steps;
SkScalar tmpY = y + SkIntToScalar(rand.nextS() % 25);
if (i == steps/2) {
fPath.moveTo(x, tmpY);
} else {
fPath.lineTo(x, tmpY);
}
}
{
SkRect oval;
oval.set(SkIntToScalar(20), SkIntToScalar(30),
SkIntToScalar(100), SkIntToScalar(60));
oval.offset(x, 0);
fPath.addRoundRect(oval, SkIntToScalar(8), SkIntToScalar(8));
}
fClickPt.set(SkIntToScalar(200), SkIntToScalar(200));
}
void onOnceBeforeDraw() override {
SkRandom rand;
int steps = 20;
SkScalar dist = SkIntToScalar(400);
SkScalar x = SkIntToScalar(20);
SkScalar y = SkIntToScalar(50);
fPath.moveTo(x, y);
for (int i = 0; i < steps; i++) {
x += dist/steps;
SkScalar tmpY = y + SkIntToScalar(rand.nextS() % 25);
if (i == steps/2) {
fPath.moveTo(x, tmpY);
} else {
fPath.lineTo(x, tmpY);
}
}
{
SkRect oval;
oval.set(SkIntToScalar(20), SkIntToScalar(30),
SkIntToScalar(100), SkIntToScalar(60));
oval.offset(x, 0);
fPath.addRoundRect(oval, SkIntToScalar(8), SkIntToScalar(8));
}
fClickPt.set(SkIntToScalar(200), SkIntToScalar(200));
this->setBGColor(0xFFDDDDDD);
}
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 onDraw(SkCanvas* canvas) override {
SkPictureRecorder recorder;
SkCanvas* rec = recorder.beginRecording(1200, 900, nullptr, 0);
SkPath p;
SkRect r = {
SkIntToScalar(100),
SkIntToScalar(200),
SkIntToScalar(400),
SkIntToScalar(700)
};
p.addRoundRect(r, SkIntToScalar(50), SkIntToScalar(50));
rec->clipPath(p, SkRegion::kIntersect_Op, true);
rec->translate(SkIntToScalar(250), SkIntToScalar(250));
rec->clipPath(p, SkRegion::kIntersect_Op, true);
rec->drawColor(0xffff0000);
sk_sp<SkPicture> pict(recorder.finishRecordingAsPicture());
canvas->setAllowSimplifyClip(true);
canvas->save();
canvas->drawPicture(pict);
canvas->restore();
canvas->setAllowSimplifyClip(false);
canvas->save();
canvas->translate(SkIntToScalar(1200 / 2), 0);
canvas->drawPicture(pict);
canvas->restore();
}
static void setAAClip(SkAAClip* clip, const SkIRect& rect)
{
SkRect r;
r.set(rect);
SkPath path;
path.addRoundRect(r, SkIntToScalar(5), SkIntToScalar(5));
clip->setPath(path);
}
void onDraw(SkCanvas* canvas) override {
canvas->translate(8.5f, 8.5f);
const SkRect rect = { 0, 0, 80, 80 };
const SkScalar RAD = rect.width()/8;
int i = 0;
for (int insetFirst = 0; insetFirst <= 1; ++insetFirst) {
for (int doEvenOdd = 0; doEvenOdd <= 1; ++doEvenOdd) {
for (int outerRR = 0; outerRR <= 1; ++outerRR) {
for (int innerRR = 0; innerRR <= 1; ++innerRR) {
for (int outerCW = 0; outerCW <= 1; ++outerCW) {
for (int innerCW = 0; innerCW <= 1; ++innerCW) {
SkPath path;
path.setFillType(doEvenOdd ? SkPath::kEvenOdd_FillType : SkPath::kWinding_FillType);
SkPath::Direction outerDir = outerCW ? SkPath::kCW_Direction : SkPath::kCCW_Direction;
SkPath::Direction innerDir = innerCW ? SkPath::kCW_Direction : SkPath::kCCW_Direction;
SkRect r = insetFirst ? inset(rect) : rect;
if (outerRR) {
path.addRoundRect(r, RAD, RAD, outerDir);
} else {
path.addRect(r, outerDir);
}
r = insetFirst ? rect : inset(rect);
if (innerRR) {
path.addRoundRect(r, RAD, RAD, innerDir);
} else {
path.addRect(r, innerDir);
}
SkScalar dx = (i / 8) * rect.width() * 6 / 5;
SkScalar dy = (i % 8) * rect.height() * 6 / 5;
i++;
path.offset(dx, dy);
this->show(canvas, path);
}
}
}
}
}
}
}
AAClipBuilderBench(void* param, bool doPath, bool doAA) : INHERITED(param) {
fDoPath = doPath;
fDoAA = doAA;
fName.printf("aaclip_build_%s_%s", doPath ? "path" : "rect",
doAA ? "AA" : "BW");
fRegion.setRect(0, 0, 640, 480);
fRect.set(fRegion.getBounds());
fRect.inset(SK_Scalar1/4, SK_Scalar1/4);
fPath.addRoundRect(fRect, SkIntToScalar(20), SkIntToScalar(20));
}
virtual void onDraw(SkCanvas* canvas) {
createShader();
createMaskFilter();
canvas->save();
// draw a letter "M" with a green & red striped texture and a
// stipple mask with a round rect soft clip
SkPaint paint;
paint.setAntiAlias(true);
sk_tool_utils::set_portable_typeface(&paint);
paint.setTextSize(72);
paint.setShader(fShader.get());
paint.setMaskFilter(fMaskFilter.get());
SkRect temp;
temp.set(SkIntToScalar(115),
SkIntToScalar(75),
SkIntToScalar(144),
SkIntToScalar(110));
SkPath path;
path.addRoundRect(temp, SkIntToScalar(5), SkIntToScalar(5));
canvas->clipPath(path, SkRegion::kReplace_Op, true); // AA is on
canvas->drawText("M", 1,
SkIntToScalar(100), SkIntToScalar(100),
paint);
canvas->restore();
// Now draw stroked versions of the "M" and the round rect so we can
// see what is going on
SkPaint paint2;
paint2.setColor(SK_ColorBLACK);
paint2.setAntiAlias(true);
sk_tool_utils::set_portable_typeface(&paint2);
paint2.setTextSize(72);
paint2.setStyle(SkPaint::kStroke_Style);
paint2.setStrokeWidth(1);
canvas->drawText("M", 1,
SkIntToScalar(100), SkIntToScalar(100),
paint2);
paint2.setColor(SK_ColorGRAY);
canvas->drawPath(path, paint2);
}
virtual void onDraw(SkCanvas* canvas)
{
this->drawBG(canvas);
fSweep = SampleCode::GetAnimScalar(SkIntToScalar(360)/24,
SkIntToScalar(360));
// fSweep = SkFloatToScalar(359.99f);
SkRect r;
SkPaint paint;
paint.setAntiAlias(true);
paint.setStrokeWidth(SkIntToScalar(2));
paint.setStyle(SkPaint::kStroke_Style);
r.set(0, 0, SkIntToScalar(200), SkIntToScalar(200));
r.offset(SkIntToScalar(20), SkIntToScalar(20));
if (false) {
const SkScalar d = SkIntToScalar(3);
const SkScalar rad[] = { d, d, d, d, d, d, d, d };
SkPath path;
path.addRoundRect(r, rad);
canvas->drawPath(path, paint);
return;
}
drawRectWithLines(canvas, r, paint);
// printf("----- sweep %g %X\n", SkScalarToFloat(fSweep), SkDegreesToRadians(fSweep));
paint.setStyle(SkPaint::kFill_Style);
paint.setColor(0x800000FF);
canvas->drawArc(r, 0, fSweep, true, paint);
paint.setColor(0x800FF000);
canvas->drawArc(r, 0, fSweep, false, paint);
paint.setStyle(SkPaint::kStroke_Style);
paint.setColor(SK_ColorRED);
canvas->drawArc(r, 0, fSweep, true, paint);
paint.setStrokeWidth(0);
paint.setColor(SK_ColorBLUE);
canvas->drawArc(r, 0, fSweep, false, paint);
drawArcs(canvas);
this->inval(NULL);
}
static VertexBuffer* tessellateRoundRect(const TessellationCache::Description& description) {
SkRect rect = SkRect::MakeWH(description.shape.roundRect.width,
description.shape.roundRect.height);
float rx = description.shape.roundRect.rx;
float ry = description.shape.roundRect.ry;
if (description.style == SkPaint::kStrokeAndFill_Style) {
float outset = description.strokeWidth / 2;
rect.outset(outset, outset);
rx += outset;
ry += outset;
}
SkPath path;
path.addRoundRect(rect, rx, ry);
return tessellatePath(description, path);
}
void draw(SkCanvas* canvas) {
SkPaint paint;
paint.setAntiAlias(true);
for (auto xradius : { 0, 7, 13, 20 } ) {
for (auto yradius : { 0, 9, 18, 40 } ) {
SkPath path;
path.addRoundRect({10, 10, 36, 46}, xradius, yradius);
paint.setColor(path.isRect(nullptr) ? SK_ColorRED : path.isOval(nullptr) ?
SK_ColorBLUE : path.isConvex() ? SK_ColorGRAY : SK_ColorGREEN);
canvas->drawPath(path, paint);
canvas->translate(64, 0);
}
canvas->translate(-256, 64);
}
}
PathTexture* RoundRectShapeCache::getRoundRect(float width, float height,
float rx, float ry, SkPaint* paint) {
RoundRectShapeCacheEntry entry(width, height, rx, ry, paint);
PathTexture* texture = get(entry);
if (!texture) {
SkPath path;
SkRect r;
r.set(0.0f, 0.0f, width, height);
path.addRoundRect(r, rx, ry, SkPath::kCW_Direction);
texture = addTexture(entry, &path, paint);
}
return texture;
}
AAClipBench(bool doPath, bool doAA)
: fDoPath(doPath)
, fDoAA(doAA) {
fName.printf("aaclip_%s_%s",
doPath ? "path" : "rect",
doAA ? "AA" : "BW");
fClipRect.set(10.5f, 10.5f,
50.5f, 50.5f);
fClipPath.addRoundRect(fClipRect, SkIntToScalar(10), SkIntToScalar(10));
fDrawRect.set(SkIntToScalar(0), SkIntToScalar(0),
SkIntToScalar(100), SkIntToScalar(100));
SkASSERT(fClipPath.isConvex());
}
virtual void onDrawContent(SkCanvas* canvas) {
#if 1
SkAAClip aaclip;
SkPath path;
SkRect bounds;
bounds.set(0, 0, 20, 20);
bounds.inset(SK_ScalarHalf, SK_ScalarHalf);
// path.addRect(bounds);
// path.addOval(bounds);
path.addRoundRect(bounds, 4, 4);
aaclip.setPath(path);
canvas->translate(30, 30);
drawClip(canvas, aaclip);
SkAAClip aaclip2;
path.offset(10, 10);
aaclip2.setPath(path);
canvas->translate(30, 0);
drawClip(canvas, aaclip2);
SkAAClip aaclip3;
aaclip3.op(aaclip, aaclip2, SkRegion::kIntersect_Op);
canvas->translate(30, 0);
drawClip(canvas, aaclip3);
#endif
#if 0
SkRect r;
r.set(0, 0, this->width(), this->height());
r.inset(20, 20);
canvas->clipRect(r);
SkPath path;
path.addRect(r);
SkPaint paint;
paint.setAntiAlias(true);
paint.setColor(SK_ColorRED);
canvas->drawPath(path, paint);
#endif
}
void recurse(SkCanvas* canvas,
int depth,
const SkPoint& offset) {
canvas->save();
SkRect temp = SkRect::MakeLTRB(0, 0,
fSizes[depth].fX, fSizes[depth].fY);
temp.offset(offset);
SkPath path;
path.addRoundRect(temp, SkIntToScalar(3), SkIntToScalar(3));
SkASSERT(path.isConvex());
canvas->clipPath(path,
0 == depth ? SkRegion::kReplace_Op :
SkRegion::kIntersect_Op,
fDoAA);
if (kNestingDepth == depth) {
// we only draw the draw rect at the lowest nesting level
SkPaint paint;
paint.setColor(0xff000000 | fRandom.nextU());
canvas->drawRect(fDrawRect, paint);
} else {
SkPoint childOffset = offset;
this->recurse(canvas, depth+1, childOffset);
childOffset += fSizes[depth+1];
this->recurse(canvas, depth+1, childOffset);
childOffset.fX = offset.fX + fSizes[depth+1].fX;
childOffset.fY = offset.fY;
this->recurse(canvas, depth+1, childOffset);
childOffset.fX = offset.fX;
childOffset.fY = offset.fY + fSizes[depth+1].fY;
this->recurse(canvas, depth+1, childOffset);
}
canvas->restore();
}
PathTexture* PathCache::getRoundRect(float width, float height,
float rx, float ry, const SkPaint* paint) {
PathDescription entry(kShapeRoundRect, paint);
entry.shape.roundRect.mWidth = width;
entry.shape.roundRect.mHeight = height;
entry.shape.roundRect.mRx = rx;
entry.shape.roundRect.mRy = ry;
PathTexture* texture = get(entry);
if (!texture) {
SkPath path;
SkRect r;
r.set(0.0f, 0.0f, width, height);
path.addRoundRect(r, rx, ry, SkPath::kCW_Direction);
texture = addTexture(entry, &path, paint);
}
return texture;
}
static void TestParsePath(skiatest::Reporter* reporter) {
for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); i++) {
SkPath path;
bool success = SkParsePath::FromSVGString(gRec[i].fStr, &path);
REPORTER_ASSERT(reporter, success);
const SkRect& expectedBounds = gRec[i].fBounds;
const SkRect& pathBounds = path.getBounds();
REPORTER_ASSERT(reporter, expectedBounds == pathBounds);
test_to_from(reporter, path);
}
SkRect r;
r.set(0, 0, SkFloatToScalar(10), SkFloatToScalar(10.5f));
SkPath p;
p.addRect(r);
test_to_from(reporter, p);
p.addOval(r);
test_to_from(reporter, p);
p.addRoundRect(r, SkFloatToScalar(4), SkFloatToScalar(4.5f));
test_to_from(reporter, p);
}
virtual void onDraw(SkCanvas* canvas) {
int offset = 35000;
int extents = 1000;
// We record a picture of huge vertical extents in which we clear the canvas to red, create
// a 'extents' by 'extents' round rect clip at a vertical offset of 'offset', then draw
// green into that.
SkPicture pict;
SkCanvas* rec = pict.beginRecording(100, offset + extents);
rec->drawColor(0xffff0000);
rec->save();
SkRect r = {
SkIntToScalar(-extents),
SkIntToScalar(offset - extents),
SkIntToScalar(extents),
SkIntToScalar(offset + extents)
};
SkPath p;
p.addRoundRect(r, 5, 5);
rec->clipPath(p, SkRegion::kIntersect_Op, true);
rec->drawColor(0xff00ff00);
rec->restore();
pict.endRecording();
// Next we play that picture into another picture of the same size.
SkPicture pict2;
pict.draw(pict2.beginRecording(100, offset + extents));
pict2.endRecording();
// Finally we play the part of that second picture that should be green into the canvas.
canvas->save();
canvas->translate(SkIntToScalar(extents / 2),
SkIntToScalar(-(offset - extents / 2)));
pict2.draw(canvas);
canvas->restore();
// If the image is red, we erroneously decided the clipPath was empty and didn't record
// the green drawColor, if it's green we're all good.
}
SkPath makePath() {
SkPath path;
for (uint32_t cIndex = 0; cIndex < fPathContourCount; ++cIndex) {
uint32_t segments = makeSegmentCount();
for (uint32_t sIndex = 0; sIndex < segments; ++sIndex) {
RandomAddPath addPathType = makeAddPathType();
++fAddCount;
if (fPrintName) {
SkDebugf("%.*s%s\n", fPathDepth * 3, fTab,
gRandomAddPathNames[addPathType]);
}
switch (addPathType) {
case kAddArc: {
SkRect oval = makeRect();
SkScalar startAngle = makeAngle();
SkScalar sweepAngle = makeAngle();
path.addArc(oval, startAngle, sweepAngle);
validate(path);
} break;
case kAddRoundRect1: {
SkRect rect = makeRect();
SkScalar rx = makeScalar(), ry = makeScalar();
SkPath::Direction dir = makeDirection();
path.addRoundRect(rect, rx, ry, dir);
validate(path);
} break;
case kAddRoundRect2: {
SkRect rect = makeRect();
SkScalar radii[8];
makeScalarArray(SK_ARRAY_COUNT(radii), radii);
SkPath::Direction dir = makeDirection();
path.addRoundRect(rect, radii, dir);
validate(path);
} break;
case kAddRRect: {
SkRRect rrect = makeRRect();
SkPath::Direction dir = makeDirection();
path.addRRect(rrect, dir);
validate(path);
} break;
case kAddPoly: {
SkTDArray<SkPoint> points;
makePointArray(&points);
bool close = makeBool();
path.addPoly(&points[0], points.count(), close);
validate(path);
} break;
case kAddPath1:
if (fPathDepth < fPathDepthLimit) {
++fPathDepth;
SkPath src = makePath();
validate(src);
SkScalar dx = makeScalar();
SkScalar dy = makeScalar();
SkPath::AddPathMode mode = makeAddPathMode();
path.addPath(src, dx, dy, mode);
--fPathDepth;
validate(path);
}
break;
case kAddPath2:
if (fPathDepth < fPathDepthLimit) {
++fPathDepth;
SkPath src = makePath();
validate(src);
SkPath::AddPathMode mode = makeAddPathMode();
path.addPath(src, mode);
--fPathDepth;
validate(path);
}
break;
case kAddPath3:
if (fPathDepth < fPathDepthLimit) {
++fPathDepth;
SkPath src = makePath();
validate(src);
SkMatrix matrix = makeMatrix();
SkPath::AddPathMode mode = makeAddPathMode();
path.addPath(src, matrix, mode);
--fPathDepth;
validate(path);
}
break;
case kReverseAddPath:
if (fPathDepth < fPathDepthLimit) {
++fPathDepth;
SkPath src = makePath();
validate(src);
path.reverseAddPath(src);
--fPathDepth;
validate(path);
}
break;
case kMoveToPath: {
SkScalar x = makeScalar();
SkScalar y = makeScalar();
path.moveTo(x, y);
validate(path);
} break;
case kRMoveToPath: {
SkScalar x = makeScalar();
SkScalar y = makeScalar();
path.rMoveTo(x, y);
validate(path);
} break;
case kLineToPath: {
SkScalar x = makeScalar();
SkScalar y = makeScalar();
path.lineTo(x, y);
validate(path);
} break;
case kRLineToPath: {
SkScalar x = makeScalar();
SkScalar y = makeScalar();
path.rLineTo(x, y);
validate(path);
} break;
case kQuadToPath: {
SkPoint pt[2];
makePointArray(SK_ARRAY_COUNT(pt), pt);
path.quadTo(pt[0], pt[1]);
validate(path);
} break;
case kRQuadToPath: {
SkPoint pt[2];
makePointArray(SK_ARRAY_COUNT(pt), pt);
path.rQuadTo(pt[0].fX, pt[0].fY, pt[1].fX, pt[1].fY);
validate(path);
} break;
case kConicToPath: {
SkPoint pt[2];
makePointArray(SK_ARRAY_COUNT(pt), pt);
SkScalar weight = makeScalar();
path.conicTo(pt[0], pt[1], weight);
validate(path);
} break;
case kRConicToPath: {
SkPoint pt[2];
makePointArray(SK_ARRAY_COUNT(pt), pt);
SkScalar weight = makeScalar();
path.rConicTo(pt[0].fX, pt[0].fY, pt[1].fX, pt[1].fY, weight);
validate(path);
} break;
case kCubicToPath: {
SkPoint pt[3];
makePointArray(SK_ARRAY_COUNT(pt), pt);
path.cubicTo(pt[0], pt[1], pt[2]);
validate(path);
} break;
case kRCubicToPath: {
SkPoint pt[3];
makePointArray(SK_ARRAY_COUNT(pt), pt);
path.rCubicTo(pt[0].fX, pt[0].fY, pt[1].fX, pt[1].fY, pt[2].fX, pt[2].fY);
validate(path);
} break;
case kArcToPath: {
SkPoint pt[2];
makePointArray(SK_ARRAY_COUNT(pt), pt);
SkScalar radius = makeScalar();
path.arcTo(pt[0], pt[1], radius);
validate(path);
} break;
case kArcTo2Path: {
SkRect oval = makeRect();
SkScalar startAngle = makeAngle();
SkScalar sweepAngle = makeAngle();
bool forceMoveTo = makeBool();
path.arcTo(oval, startAngle, sweepAngle, forceMoveTo);
validate(path);
} break;
case kClosePath:
path.close();
validate(path);
break;
}
}
}
return path;
}