bool
PathSkia::StrokeContainsPoint(const StrokeOptions &aStrokeOptions,
const Point &aPoint,
const Matrix &aTransform) const
{
Matrix inverse = aTransform;
inverse.Invert();
Point transformed = inverse * aPoint;
SkPaint paint;
StrokeOptionsToPaint(paint, aStrokeOptions);
SkPath strokePath;
paint.getFillPath(mPath, &strokePath);
Rect bounds = aTransform.TransformBounds(SkRectToRect(strokePath.getBounds()));
if (aPoint.x < bounds.x || aPoint.y < bounds.y ||
aPoint.x > bounds.XMost() || aPoint.y > bounds.YMost()) {
return false;
}
SkRegion pointRect;
pointRect.setRect(int32_t(SkFloatToScalar(transformed.x - 1.f)),
int32_t(SkFloatToScalar(transformed.y - 1.f)),
int32_t(SkFloatToScalar(transformed.x + 1.f)),
int32_t(SkFloatToScalar(transformed.y + 1.f)));
SkRegion pathRegion;
return pathRegion.setPath(strokePath, pointRect);
}
bool Sk2DPathEffect::filterPath(SkPath* dst, const SkPath& src, SkStrokeRec*) {
if (!fMatrixIsInvertible) {
return false;
}
SkPath tmp;
SkIRect ir;
src.transform(fInverse, &tmp);
tmp.getBounds().round(&ir);
if (!ir.isEmpty()) {
this->begin(ir, dst);
SkRegion rgn;
rgn.setPath(tmp, SkRegion(ir));
SkRegion::Iterator iter(rgn);
for (; !iter.done(); iter.next()) {
const SkIRect& rect = iter.rect();
for (int y = rect.fTop; y < rect.fBottom; ++y) {
this->nextSpan(rect.fLeft, y, rect.width(), dst);
}
}
this->end(dst);
}
return true;
}
bool SkHitTestPath(const SkPath& path, SkRect& target, bool hires) {
if (target.isEmpty()) {
return false;
}
bool isInverse = path.isInverseFillType();
if (path.isEmpty()) {
return isInverse;
}
SkRect bounds = path.getBounds();
bool sects = SkRect::Intersects(target, bounds);
if (isInverse) {
if (!sects) {
return true;
}
} else {
if (!sects) {
return false;
}
if (target.contains(bounds)) {
return true;
}
}
SkPath devPath;
const SkPath* pathPtr;
SkRect devTarget;
if (hires) {
const SkScalar coordLimit = SkIntToScalar(16384);
const SkRect limit = { 0, 0, coordLimit, coordLimit };
SkMatrix matrix;
matrix.setRectToRect(bounds, limit, SkMatrix::kFill_ScaleToFit);
path.transform(matrix, &devPath);
matrix.mapRect(&devTarget, target);
pathPtr = &devPath;
} else {
devTarget = target;
pathPtr = &path;
}
SkIRect iTarget;
devTarget.round(&iTarget);
if (iTarget.isEmpty()) {
iTarget.fLeft = SkScalarFloorToInt(devTarget.fLeft);
iTarget.fTop = SkScalarFloorToInt(devTarget.fTop);
iTarget.fRight = iTarget.fLeft + 1;
iTarget.fBottom = iTarget.fTop + 1;
}
SkRegion clip(iTarget);
SkRegion rgn;
return rgn.setPath(*pathPtr, clip) ^ isInverse;
}
static jboolean Region_setPath(JNIEnv* env, jobject, jlong dstHandle,
jlong pathHandle, jlong clipHandle) {
SkRegion* dst = reinterpret_cast<SkRegion*>(dstHandle);
const SkPath* path = reinterpret_cast<SkPath*>(pathHandle);
const SkRegion* clip = reinterpret_cast<SkRegion*>(clipHandle);
SkASSERT(dst && path && clip);
bool result = dst->setPath(*path, *clip);
return boolTojboolean(result);
}
bool SkPathContainsPoint(SkPath* originalPath, const FloatPoint& point, SkPath::FillType ft)
{
SkRegion rgn;
SkRegion clip;
SkPath::FillType originalFillType = originalPath->getFillType();
const SkPath* path = originalPath;
SkPath scaledPath;
int scale = 1;
SkRect bounds;
// FIXME: This #ifdef can go away once we're firmly using the new Skia.
// During the transition, this makes the code compatible with both versions.
#ifdef SK_USE_OLD_255_TO_256
bounds = originalPath->getBounds();
#else
originalPath->computeBounds(&bounds, SkPath::kFast_BoundsType);
#endif
// We can immediately return false if the point is outside the bounding rect
if (!bounds.contains(SkFloatToScalar(point.x()), SkFloatToScalar(point.y())))
return false;
originalPath->setFillType(ft);
// Skia has trouble with coordinates close to the max signed 16-bit values
// If we have those, we need to scale.
//
// TODO: remove this code once Skia is patched to work properly with large
// values
const SkScalar kMaxCoordinate = SkIntToScalar(1<<15);
SkScalar biggestCoord = std::max(std::max(std::max(bounds.fRight, bounds.fBottom), -bounds.fLeft), -bounds.fTop);
if (biggestCoord > kMaxCoordinate) {
scale = SkScalarCeil(SkScalarDiv(biggestCoord, kMaxCoordinate));
SkMatrix m;
m.setScale(SkScalarInvert(SkIntToScalar(scale)), SkScalarInvert(SkIntToScalar(scale)));
originalPath->transform(m, &scaledPath);
path = &scaledPath;
}
int x = static_cast<int>(floorf(point.x() / scale));
int y = static_cast<int>(floorf(point.y() / scale));
clip.setRect(x, y, x + 1, y + 1);
bool contains = rgn.setPath(*path, clip);
originalPath->setFillType(originalFillType);
return contains;
}
static bool test_pathregion() {
SkPath path;
SkRegion region;
path.moveTo(25071800.f, -141823808.f);
path.lineTo(25075500.f, -141824000.f);
path.lineTo(25075400.f, -141827712.f);
path.lineTo(25071810.f, -141827600.f);
path.close();
SkIRect bounds;
path.getBounds().round(&bounds);
SkRegion clip(bounds);
return region.setPath(path, clip); // <-- !! DOWN !!
}
bool SkPathContainsPoint(SkPath* originalPath, const FloatPoint& point, SkPath::FillType ft)
{
SkRegion rgn;
SkRegion clip;
SkPath::FillType originalFillType = originalPath->getFillType();
const SkPath* path = originalPath;
SkPath scaledPath;
int scale = 1;
SkRect bounds = originalPath->getBounds();
// We can immediately return false if the point is outside the bounding
// rect. We don't use bounds.contains() here, since it would exclude
// points on the right and bottom edges of the bounding rect, and we want
// to include them.
SkScalar fX = SkFloatToScalar(point.x());
SkScalar fY = SkFloatToScalar(point.y());
if (fX < bounds.fLeft || fX > bounds.fRight || fY < bounds.fTop || fY > bounds.fBottom)
return false;
originalPath->setFillType(ft);
// Skia has trouble with coordinates close to the max signed 16-bit values
// If we have those, we need to scale.
//
// TODO: remove this code once Skia is patched to work properly with large
// values
const SkScalar kMaxCoordinate = SkIntToScalar(1<<15);
SkScalar biggestCoord = std::max(std::max(std::max(bounds.fRight, bounds.fBottom), -bounds.fLeft), -bounds.fTop);
if (biggestCoord > kMaxCoordinate) {
scale = SkScalarCeil(SkScalarDiv(biggestCoord, kMaxCoordinate));
SkMatrix m;
m.setScale(SkScalarInvert(SkIntToScalar(scale)), SkScalarInvert(SkIntToScalar(scale)));
originalPath->transform(m, &scaledPath);
path = &scaledPath;
}
int x = static_cast<int>(floorf(point.x() / scale));
int y = static_cast<int>(floorf(point.y() / scale));
clip.setRect(x - 1, y - 1, x + 1, y + 1);
bool contains = rgn.setPath(*path, clip);
originalPath->setFillType(originalFillType);
return contains;
}
static void test_pathregion() {
SkPath path;
SkRegion region;
path.moveTo(25071800.f, -141823808.f);
path.lineTo(25075500.f, -141824000.f);
path.lineTo(25075400.f, -141827712.f);
path.lineTo(25071810.f, -141827600.f);
path.close();
SkIRect bounds;
path.getBounds().round(&bounds);
SkRegion clip(bounds);
bool result = region.setPath(path, clip); // <-- !! DOWN !!
SkDebugf("----- result %d\n", result);
}
bool SkPathContainsPoint(const SkPath& originalPath, const FloatPoint& point, SkPath::FillType ft)
{
SkRect bounds = originalPath.getBounds();
// We can immediately return false if the point is outside the bounding
// rect. We don't use bounds.contains() here, since it would exclude
// points on the right and bottom edges of the bounding rect, and we want
// to include them.
SkScalar fX = SkFloatToScalar(point.x());
SkScalar fY = SkFloatToScalar(point.y());
if (fX < bounds.fLeft || fX > bounds.fRight || fY < bounds.fTop || fY > bounds.fBottom)
return false;
// Scale the path to a large size before hit testing for two reasons:
// 1) Skia has trouble with coordinates close to the max signed 16-bit values, so we scale larger paths down.
// TODO: when Skia is patched to work properly with large values, this will not be necessary.
// 2) Skia does not support analytic hit testing, so we scale paths up to do raster hit testing with subpixel accuracy.
// 3) Scale the x/y axis separately so an extreme large/small scale factor on one axis won't
// ruin the resolution of the other axis.
SkScalar biggestCoordX = std::max(bounds.fRight, -bounds.fLeft);
SkScalar biggestCoordY = std::max(bounds.fBottom, -bounds.fTop);
if (SkScalarNearlyZero(biggestCoordX) || SkScalarNearlyZero(biggestCoordY))
return false;
biggestCoordX = std::max(biggestCoordX, std::fabs(fX) + 1);
biggestCoordY = std::max(biggestCoordY, std::fabs(fY) + 1);
const SkScalar kMaxCoordinate = SkIntToScalar(1 << 15);
SkScalar scaleX = kMaxCoordinate / biggestCoordX;
SkScalar scaleY = kMaxCoordinate / biggestCoordY;
SkRegion rgn;
SkRegion clip;
SkMatrix m;
SkPath scaledPath(originalPath);
scaledPath.setFillType(ft);
m.setScale(scaleX, scaleY);
scaledPath.transform(m, 0);
int x = static_cast<int>(floorf(0.5f + point.x() * scaleX));
int y = static_cast<int>(floorf(0.5f + point.y() * scaleY));
clip.setRect(x - 1, y - 1, x + 1, y + 1);
return rgn.setPath(scaledPath, clip);
}
bool SkPathContainsPoint(SkPath* originalPath, const FloatPoint& point, SkPath::FillType ft)
{
SkRect bounds = originalPath->getBounds();
// We can immediately return false if the point is outside the bounding
// rect. We don't use bounds.contains() here, since it would exclude
// points on the right and bottom edges of the bounding rect, and we want
// to include them.
SkScalar fX = SkFloatToScalar(point.x());
SkScalar fY = SkFloatToScalar(point.y());
if (fX < bounds.fLeft || fX > bounds.fRight || fY < bounds.fTop || fY > bounds.fBottom)
return false;
// Scale the path to a large size before hit testing for two reasons:
// 1) Skia has trouble with coordinates close to the max signed 16-bit values, so we scale larger paths down.
// TODO: when Skia is patched to work properly with large values, this will not be necessary.
// 2) Skia does not support analytic hit testing, so we scale paths up to do raster hit testing with subpixel accuracy.
SkScalar biggestCoord = std::max(std::max(std::max(bounds.fRight, bounds.fBottom), -bounds.fLeft), -bounds.fTop);
if (SkScalarNearlyZero(biggestCoord))
return false;
biggestCoord = std::max(std::max(biggestCoord, fX + 1), fY + 1);
const SkScalar kMaxCoordinate = SkIntToScalar(1 << 15);
SkScalar scale = SkScalarDiv(kMaxCoordinate, biggestCoord);
SkRegion rgn;
SkRegion clip;
SkMatrix m;
SkPath scaledPath;
SkPath::FillType originalFillType = originalPath->getFillType();
originalPath->setFillType(ft);
m.setScale(scale, scale);
originalPath->transform(m, &scaledPath);
int x = static_cast<int>(floorf(0.5f + point.x() * scale));
int y = static_cast<int>(floorf(0.5f + point.y() * scale));
clip.setRect(x - 1, y - 1, x + 1, y + 1);
bool contains = rgn.setPath(scaledPath, clip);
originalPath->setFillType(originalFillType);
return contains;
}
bool
PathSkia::ContainsPoint(const Point &aPoint, const Matrix &aTransform) const
{
Matrix inverse = aTransform;
inverse.Invert();
Point transformed = inverse * aPoint;
Rect bounds = GetBounds(aTransform);
if (aPoint.x < bounds.x || aPoint.y < bounds.y ||
aPoint.x > bounds.XMost() || aPoint.y > bounds.YMost()) {
return false;
}
SkRegion pointRect;
pointRect.setRect(SkFloatToScalar(transformed.x - 1), SkFloatToScalar(transformed.y - 1),
SkFloatToScalar(transformed.x + 1), SkFloatToScalar(transformed.y + 1));
SkRegion pathRegion;
return pathRegion.setPath(mPath, pointRect);
}
