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();
}
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.
}
static void fuzz_drawPath(Fuzz* fuzz) {
SkPaint p;
init_paint(fuzz, &p);
sk_sp<SkSurface> surface;
init_surface(fuzz, &surface);
// TODO(kjlubick): put the ability to fuzz a path in shared file, with
// other common things (e.g. rects, lines)
uint8_t i, j;
fuzz->nextRange(&i, 0, 10); // set i to number of operations to perform
SkPath path;
SkScalar a, b, c, d, e, f;
for (int k = 0; k < i; ++k) {
fuzz->nextRange(&j, 0, 5); // set j to choose operation to perform
switch (j) {
case 0:
fuzz->next(&a, &b);
path.moveTo(a, b);
break;
case 1:
fuzz->next(&a, &b);
path.lineTo(a, b);
break;
case 2:
fuzz->next(&a, &b, &c, &d);
path.quadTo(a, b, c, d);
break;
case 3:
fuzz->next(&a, &b, &c, &d, &e);
path.conicTo(a, b, c, d, e);
break;
case 4:
fuzz->next(&a, &b, &c, &d, &e, &f);
path.cubicTo(a, b, c, d, e, f);
break;
case 5:
fuzz->next(&a, &b, &c, &d, &e);
path.arcTo(a, b, c, d, e);
break;
}
}
path.close();
SkCanvas* cnv = surface->getCanvas();
cnv->drawPath(path, p);
bool bl;
fuzz->next(&bl);
cnv->clipPath(path, kIntersect_SkClipOp, bl);
}
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.
}
static void
_prepare_sized_pattern(mbe_t *mbe, mbe_pattern_t *ptn) {
SkCanvas *canvas = mbe->canvas;
SkPath path;
co_aix x, y;
co_aix reverse[6];
*mbe->saved_region = canvas->getTotalClip();
compute_reverse(ptn->matrix, reverse);
x = 0; y = 0;
matrix_trans_pos(reverse, &x, &y);
path.moveTo(CO_AIX_2_SKSCALAR(x), CO_AIX_2_SKSCALAR(y));
x = 0; y = ptn->h;
matrix_trans_pos(reverse, &x, &y);
path.moveTo(CO_AIX_2_SKSCALAR(x), CO_AIX_2_SKSCALAR(y));
x = ptn->w; y = ptn->h;
matrix_trans_pos(reverse, &x, &y);
path.moveTo(CO_AIX_2_SKSCALAR(x), CO_AIX_2_SKSCALAR(y));
path.close();
canvas->clipPath(path, SkRegion::kIntersect_Op);
}
static void test_clip_bound_opt(skiatest::Reporter* reporter) {
// Test for crbug.com/229011
SkRect rect1 = SkRect::MakeXYWH(SkIntToScalar(4), SkIntToScalar(4),
SkIntToScalar(2), SkIntToScalar(2));
SkRect rect2 = SkRect::MakeXYWH(SkIntToScalar(7), SkIntToScalar(7),
SkIntToScalar(1), SkIntToScalar(1));
SkRect rect3 = SkRect::MakeXYWH(SkIntToScalar(6), SkIntToScalar(6),
SkIntToScalar(1), SkIntToScalar(1));
SkPath invPath;
invPath.addOval(rect1);
invPath.setFillType(SkPath::kInverseEvenOdd_FillType);
SkPath path;
path.addOval(rect2);
SkPath path2;
path2.addOval(rect3);
SkIRect clipBounds;
SkPictureRecorder recorder;
// Testing conservative-raster-clip that is enabled by PictureRecord
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->clipPath(invPath, SkRegion::kIntersect_Op);
bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
REPORTER_ASSERT(reporter, true == nonEmpty);
REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft);
REPORTER_ASSERT(reporter, 0 == clipBounds.fTop);
REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom);
REPORTER_ASSERT(reporter, 10 == clipBounds.fRight);
}
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->clipPath(path, SkRegion::kIntersect_Op);
canvas->clipPath(invPath, SkRegion::kIntersect_Op);
bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
REPORTER_ASSERT(reporter, true == nonEmpty);
REPORTER_ASSERT(reporter, 7 == clipBounds.fLeft);
REPORTER_ASSERT(reporter, 7 == clipBounds.fTop);
REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom);
REPORTER_ASSERT(reporter, 8 == clipBounds.fRight);
}
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->clipPath(path, SkRegion::kIntersect_Op);
canvas->clipPath(invPath, SkRegion::kUnion_Op);
bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
REPORTER_ASSERT(reporter, true == nonEmpty);
REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft);
REPORTER_ASSERT(reporter, 0 == clipBounds.fTop);
REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom);
REPORTER_ASSERT(reporter, 10 == clipBounds.fRight);
}
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->clipPath(path, SkRegion::kDifference_Op);
bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
REPORTER_ASSERT(reporter, true == nonEmpty);
REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft);
REPORTER_ASSERT(reporter, 0 == clipBounds.fTop);
REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom);
REPORTER_ASSERT(reporter, 10 == clipBounds.fRight);
}
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->clipPath(path, SkRegion::kReverseDifference_Op);
bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
// True clip is actually empty in this case, but the best
// determination we can make using only bounds as input is that the
// clip is included in the bounds of 'path'.
REPORTER_ASSERT(reporter, true == nonEmpty);
REPORTER_ASSERT(reporter, 7 == clipBounds.fLeft);
REPORTER_ASSERT(reporter, 7 == clipBounds.fTop);
REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom);
REPORTER_ASSERT(reporter, 8 == clipBounds.fRight);
}
{
SkCanvas* canvas = recorder.beginRecording(10, 10);
canvas->clipPath(path, SkRegion::kIntersect_Op);
canvas->clipPath(path2, SkRegion::kXOR_Op);
bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds);
REPORTER_ASSERT(reporter, true == nonEmpty);
REPORTER_ASSERT(reporter, 6 == clipBounds.fLeft);
REPORTER_ASSERT(reporter, 6 == clipBounds.fTop);
REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom);
REPORTER_ASSERT(reporter, 8 == clipBounds.fRight);
}
}
static void test_gpu_veto(skiatest::Reporter* reporter) {
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(100, 100);
{
SkPath path;
path.moveTo(0, 0);
path.lineTo(50, 50);
SkScalar intervals[] = { 1.0f, 1.0f };
sk_sp<SkPathEffect> dash(SkDashPathEffect::Make(intervals, 2, 0));
SkPaint paint;
paint.setStyle(SkPaint::kStroke_Style);
paint.setPathEffect(dash);
for (int i = 0; i < 50; ++i) {
canvas->drawPath(path, paint);
}
}
sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
// path effects currently render an SkPicture undesireable for GPU rendering
const char *reason = nullptr;
REPORTER_ASSERT(reporter,
!SkPictureGpuAnalyzer(picture).suitableForGpuRasterization(&reason));
REPORTER_ASSERT(reporter, reason);
canvas = recorder.beginRecording(100, 100);
{
SkPath path;
path.moveTo(0, 0);
path.lineTo(0, 50);
path.lineTo(25, 25);
path.lineTo(50, 50);
path.lineTo(50, 0);
path.close();
REPORTER_ASSERT(reporter, !path.isConvex());
SkPaint paint;
paint.setAntiAlias(true);
for (int i = 0; i < 50; ++i) {
canvas->drawPath(path, paint);
}
}
picture = recorder.finishRecordingAsPicture();
// A lot of small AA concave paths should be fine for GPU rendering
REPORTER_ASSERT(reporter, SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
canvas = recorder.beginRecording(100, 100);
{
SkPath path;
path.moveTo(0, 0);
path.lineTo(0, 100);
path.lineTo(50, 50);
path.lineTo(100, 100);
path.lineTo(100, 0);
path.close();
REPORTER_ASSERT(reporter, !path.isConvex());
SkPaint paint;
paint.setAntiAlias(true);
for (int i = 0; i < 50; ++i) {
canvas->drawPath(path, paint);
}
}
picture = recorder.finishRecordingAsPicture();
// A lot of large AA concave paths currently render an SkPicture undesireable for GPU rendering
REPORTER_ASSERT(reporter, !SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
canvas = recorder.beginRecording(100, 100);
{
SkPath path;
path.moveTo(0, 0);
path.lineTo(0, 50);
path.lineTo(25, 25);
path.lineTo(50, 50);
path.lineTo(50, 0);
path.close();
REPORTER_ASSERT(reporter, !path.isConvex());
SkPaint paint;
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(0);
for (int i = 0; i < 50; ++i) {
canvas->drawPath(path, paint);
}
}
picture = recorder.finishRecordingAsPicture();
// hairline stroked AA concave paths are fine for GPU rendering
REPORTER_ASSERT(reporter, SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
canvas = recorder.beginRecording(100, 100);
{
SkPaint paint;
SkScalar intervals [] = { 10, 20 };
paint.setPathEffect(SkDashPathEffect::Make(intervals, 2, 25));
SkPoint points [2] = { { 0, 0 }, { 100, 0 } };
for (int i = 0; i < 50; ++i) {
canvas->drawPoints(SkCanvas::kLines_PointMode, 2, points, paint);
}
}
picture = recorder.finishRecordingAsPicture();
// fast-path dashed effects are fine for GPU rendering ...
REPORTER_ASSERT(reporter, SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
canvas = recorder.beginRecording(100, 100);
{
SkPaint paint;
SkScalar intervals [] = { 10, 20 };
paint.setPathEffect(SkDashPathEffect::Make(intervals, 2, 25));
for (int i = 0; i < 50; ++i) {
canvas->drawRect(SkRect::MakeWH(10, 10), paint);
}
}
picture = recorder.finishRecordingAsPicture();
// ... but only when applied to drawPoint() calls
REPORTER_ASSERT(reporter, !SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
canvas = recorder.beginRecording(100, 100);
{
const SkPath convexClip = make_convex_path();
const SkPath concaveClip = make_concave_path();
for (int i = 0; i < 50; ++i) {
canvas->clipPath(convexClip);
canvas->clipPath(concaveClip);
canvas->clipPath(convexClip, SkRegion::kIntersect_Op, true);
canvas->drawRect(SkRect::MakeWH(100, 100), SkPaint());
}
}
picture = recorder.finishRecordingAsPicture();
// Convex clips and non-AA concave clips are fine on the GPU.
REPORTER_ASSERT(reporter, SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
canvas = recorder.beginRecording(100, 100);
{
const SkPath concaveClip = make_concave_path();
for (int i = 0; i < 50; ++i) {
canvas->clipPath(concaveClip, SkRegion::kIntersect_Op, true);
canvas->drawRect(SkRect::MakeWH(100, 100), SkPaint());
}
}
picture = recorder.finishRecordingAsPicture();
// ... but AA concave clips are not.
REPORTER_ASSERT(reporter, !SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
// Nest the previous picture inside a new one.
canvas = recorder.beginRecording(100, 100);
{
canvas->drawPicture(picture);
}
picture = recorder.finishRecordingAsPicture();
REPORTER_ASSERT(reporter, !SkPictureGpuAnalyzer(picture).suitableForGpuRasterization());
}