void SkRasterClip::translate(int dx, int dy, SkRasterClip* dst) const {
if (NULL == dst) {
return;
}
AUTO_RASTERCLIP_VALIDATE(*this);
if (this->isEmpty()) {
dst->setEmpty();
return;
}
if (0 == (dx | dy)) {
*dst = *this;
return;
}
dst->fIsBW = fIsBW;
if (fIsBW) {
fBW.translate(dx, dy, &dst->fBW);
dst->fAA.setEmpty();
} else {
fAA.translate(dx, dy, &dst->fAA);
dst->fBW.setEmpty();
}
}
bool SkRasterClip::setRect(const SkIRect& rect) {
AUTO_RASTERCLIP_VALIDATE(*this);
fIsBW = true;
fAA.setEmpty();
return fBW.setRect(rect);
}
void SkRasterClip::convertToAA() {
AUTO_RASTERCLIP_VALIDATE(*this);
SkASSERT(fIsBW);
fAA.setRegion(fBW);
fIsBW = false;
}
bool SkRasterClip::op(const SkPath& path, const SkMatrix& matrix, const SkIRect& bounds,
SkRegion::Op op, bool doAA) {
AUTO_RASTERCLIP_VALIDATE(*this);
if (fForceConservativeRects) {
SkIRect ir;
switch (mutate_conservative_op(&op, path.isInverseFillType())) {
case kDoNothing_MutateResult:
return !this->isEmpty();
case kReplaceClippedAgainstGlobalBounds_MutateResult:
ir = bounds;
break;
case kContinue_MutateResult: {
SkRect bounds = path.getBounds();
matrix.mapRect(&bounds);
ir = bounds.roundOut();
break;
}
}
return this->op(ir, op);
}
// base is used to limit the size (and therefore memory allocation) of the
// region that results from scan converting devPath.
SkRegion base;
SkPath devPath;
if (matrix.isIdentity()) {
devPath = path;
} else {
path.transform(matrix, &devPath);
devPath.setIsVolatile(true);
}
if (SkRegion::kIntersect_Op == op) {
// since we are intersect, we can do better (tighter) with currRgn's
// bounds, than just using the device. However, if currRgn is complex,
// our region blitter may hork, so we do that case in two steps.
if (this->isRect()) {
// FIXME: we should also be able to do this when this->isBW(),
// but relaxing the test above triggers GM asserts in
// SkRgnBuilder::blitH(). We need to investigate what's going on.
return this->setPath(devPath, this->bwRgn(), doAA);
} else {
base.setRect(this->getBounds());
SkRasterClip clip(fForceConservativeRects);
clip.setPath(devPath, base, doAA);
return this->op(clip, op);
}
} else {
base.setRect(bounds);
if (SkRegion::kReplace_Op == op) {
return this->setPath(devPath, base, doAA);
} else {
SkRasterClip clip(fForceConservativeRects);
clip.setPath(devPath, base, doAA);
return this->op(clip, op);
}
}
}
const SkRegion& SkRasterClip::forceGetBW() {
AUTO_RASTERCLIP_VALIDATE(*this);
if (!fIsBW) {
fBW.setRect(fAA.getBounds());
}
return fBW;
}
bool SkRasterClip::setEmpty() {
AUTO_RASTERCLIP_VALIDATE(*this);
fIsBW = true;
fBW.setEmpty();
fAA.setEmpty();
return false;
}
SkRasterClip::SkRasterClip(const SkRasterClip& src) {
AUTO_RASTERCLIP_VALIDATE(src);
fIsBW = src.fIsBW;
if (fIsBW) {
fBW = src.fBW;
} else {
fAA = src.fAA;
}
}
bool SkRasterClip::op(const SkRegion& rgn, SkRegion::Op op) {
AUTO_RASTERCLIP_VALIDATE(*this);
if (fIsBW) {
return fBW.op(rgn, op);
} else {
SkAAClip tmp;
tmp.setRegion(rgn);
return fAA.op(tmp, op);
}
}
void SkRasterClip::convertToAA() {
AUTO_RASTERCLIP_VALIDATE(*this);
SkASSERT(fIsBW);
fAA.setRegion(fBW);
fIsBW = false;
// since we are being explicitly asked to convert-to-aa, we pass false so we don't "optimize"
// ourselves back to BW.
(void)this->updateCacheAndReturnNonEmpty(false);
}
bool SkRasterClip::op(const SkRegion& rgn, SkRegion::Op op) {
AUTO_RASTERCLIP_VALIDATE(*this);
if (fIsBW) {
(void)fBW.op(rgn, op);
} else {
SkAAClip tmp;
tmp.setRegion(rgn);
(void)fAA.op(tmp, op);
}
return this->updateCacheAndReturnNonEmpty();
}
bool SkRasterClip::op(const SkRect& localRect, const SkMatrix& matrix, const SkIRect& bounds,
SkRegion::Op op, bool doAA) {
AUTO_RASTERCLIP_VALIDATE(*this);
SkRect devRect;
if (fForceConservativeRects) {
SkIRect ir;
switch (mutate_conservative_op(&op, false)) {
case kDoNothing_MutateResult:
return !this->isEmpty();
case kReplaceClippedAgainstGlobalBounds_MutateResult:
ir = bounds;
break;
case kContinue_MutateResult:
matrix.mapRect(&devRect, localRect);
ir = devRect.roundOut();
break;
}
return this->op(ir, op);
}
const bool isScaleTrans = matrix.isScaleTranslate();
if (!isScaleTrans) {
SkPath path;
path.addRect(localRect);
path.setIsVolatile(true);
return this->op(path, matrix, bounds, op, doAA);
}
matrix.mapRect(&devRect, localRect);
if (fIsBW && doAA) {
// check that the rect really needs aa, or is it close enought to
// integer boundaries that we can just treat it as a BW rect?
if (nearly_integral(devRect.fLeft) && nearly_integral(devRect.fTop) &&
nearly_integral(devRect.fRight) && nearly_integral(devRect.fBottom)) {
doAA = false;
}
}
if (fIsBW && !doAA) {
SkIRect ir;
devRect.round(&ir);
(void)fBW.op(ir, op);
} else {
if (fIsBW) {
this->convertToAA();
}
(void)fAA.op(devRect, op, doAA);
}
return this->updateCacheAndReturnNonEmpty();
}
SkRasterClip::SkRasterClip(const SkRasterClip& src) {
AUTO_RASTERCLIP_VALIDATE(src);
fIsBW = src.fIsBW;
if (fIsBW) {
fBW = src.fBW;
} else {
fAA = src.fAA;
}
fIsEmpty = src.isEmpty();
fIsRect = src.isRect();
SkDEBUGCODE(this->validate();)
}
bool SkRasterClip::setPath(const SkPath& path, const SkRegion& clip, bool doAA) {
AUTO_RASTERCLIP_VALIDATE(*this);
if (this->isBW() && !doAA) {
return fBW.setPath(path, clip);
} else {
// TODO: since we are going to over-write fAA completely (aren't we?)
// we should just clear our BW data (if any) and set fIsAA=true
if (this->isBW()) {
this->convertToAA();
}
return fAA.setPath(path, &clip, doAA);
}
}
bool SkRasterClip::op(const SkPath& path, const SkMatrix& matrix, const SkIRect& devBounds,
SkRegion::Op op, bool doAA) {
AUTO_RASTERCLIP_VALIDATE(*this);
SkIRect bounds(devBounds);
this->applyClipRestriction(op, &bounds);
// base is used to limit the size (and therefore memory allocation) of the
// region that results from scan converting devPath.
SkRegion base;
SkPath devPath;
if (matrix.isIdentity()) {
devPath = path;
} else {
path.transform(matrix, &devPath);
devPath.setIsVolatile(true);
}
if (SkRegion::kIntersect_Op == op) {
// since we are intersect, we can do better (tighter) with currRgn's
// bounds, than just using the device. However, if currRgn is complex,
// our region blitter may hork, so we do that case in two steps.
if (this->isRect()) {
// FIXME: we should also be able to do this when this->isBW(),
// but relaxing the test above triggers GM asserts in
// SkRgnBuilder::blitH(). We need to investigate what's going on.
return this->setPath(devPath, this->bwRgn(), doAA);
} else {
base.setRect(this->getBounds());
SkRasterClip clip;
clip.setPath(devPath, base, doAA);
return this->op(clip, op);
}
} else {
base.setRect(bounds);
if (SkRegion::kReplace_Op == op) {
return this->setPath(devPath, base, doAA);
} else {
SkRasterClip clip;
clip.setPath(devPath, base, doAA);
return this->op(clip, op);
}
}
}
bool SkRasterClip::setPath(const SkPath& path, const SkRegion& clip, bool doAA) {
AUTO_RASTERCLIP_VALIDATE(*this);
if (fForceConservativeRects) {
return this->setConservativeRect(path.getBounds(), clip.getBounds(), path.isInverseFillType());
}
if (this->isBW() && !doAA) {
(void)fBW.setPath(path, clip);
} else {
// TODO: since we are going to over-write fAA completely (aren't we?)
// we should just clear our BW data (if any) and set fIsAA=true
if (this->isBW()) {
this->convertToAA();
}
(void)fAA.setPath(path, &clip, doAA);
}
return this->updateCacheAndReturnNonEmpty();
}
bool SkRasterClip::op(const SkRect& r, const SkISize& size, SkRegion::Op op, bool doAA) {
AUTO_RASTERCLIP_VALIDATE(*this);
if (fForceConservativeRects) {
SkIRect ir;
switch (mutate_conservative_op(&op, false)) {
case kDoNothing_MutateResult:
return !this->isEmpty();
case kReplaceClippedAgainstGlobalBounds_MutateResult:
ir = SkIRect::MakeSize(size);
break;
case kContinue_MutateResult:
ir = r.roundOut();
break;
}
return this->op(ir, op);
}
if (fIsBW && doAA) {
// check that the rect really needs aa, or is it close enought to
// integer boundaries that we can just treat it as a BW rect?
if (nearly_integral(r.fLeft) && nearly_integral(r.fTop) &&
nearly_integral(r.fRight) && nearly_integral(r.fBottom)) {
doAA = false;
}
}
if (fIsBW && !doAA) {
SkIRect ir;
r.round(&ir);
(void)fBW.op(ir, op);
} else {
if (fIsBW) {
this->convertToAA();
}
(void)fAA.op(r, op, doAA);
}
return this->updateCacheAndReturnNonEmpty();
}
bool SkRasterClip::op(const SkRect& r, SkRegion::Op op, bool doAA) {
AUTO_RASTERCLIP_VALIDATE(*this);
if (doAA) {
// check that the rect really needs aa
if (is_integral(r.fLeft) && is_integral(r.fTop) &&
is_integral(r.fRight) && is_integral(r.fBottom)) {
doAA = false;
}
}
if (fIsBW && !doAA) {
SkIRect ir;
r.round(&ir);
return fBW.op(ir, op);
} else {
if (fIsBW) {
this->convertToAA();
}
return fAA.op(r, op, doAA);
}
}
bool SkRasterClip::op(const SkRasterClip& clip, SkRegion::Op op) {
AUTO_RASTERCLIP_VALIDATE(*this);
clip.validate();
if (this->isBW() && clip.isBW()) {
return fBW.op(clip.fBW, op);
} else {
SkAAClip tmp;
const SkAAClip* other;
if (this->isBW()) {
this->convertToAA();
}
if (clip.isBW()) {
tmp.setRegion(clip.bwRgn());
other = &tmp;
} else {
other = &clip.aaRgn();
}
return fAA.op(*other, op);
}
}
bool SkRasterClip::op(const SkRect& localRect, const SkMatrix& matrix, const SkIRect& devBounds,
SkRegion::Op op, bool doAA) {
AUTO_RASTERCLIP_VALIDATE(*this);
SkRect devRect;
const bool isScaleTrans = matrix.isScaleTranslate();
if (!isScaleTrans) {
SkPath path;
path.addRect(localRect);
path.setIsVolatile(true);
return this->op(path, matrix, devBounds, op, doAA);
}
matrix.mapRect(&devRect, localRect);
if (fIsBW && doAA) {
// check that the rect really needs aa, or is it close enought to
// integer boundaries that we can just treat it as a BW rect?
if (nearly_integral(devRect.fLeft) && nearly_integral(devRect.fTop) &&
nearly_integral(devRect.fRight) && nearly_integral(devRect.fBottom)) {
doAA = false;
}
}
if (fIsBW && !doAA) {
SkIRect ir;
devRect.round(&ir);
this->applyClipRestriction(op, &ir);
(void)fBW.op(ir, op);
} else {
if (fIsBW) {
this->convertToAA();
}
this->applyClipRestriction(op, &devRect);
(void)fAA.op(devRect, op, doAA);
}
return this->updateCacheAndReturnNonEmpty();
}
bool SkRasterClip::op(const SkRect& r, SkRegion::Op op, bool doAA) {
AUTO_RASTERCLIP_VALIDATE(*this);
if (fIsBW && doAA) {
// check that the rect really needs aa, or is it close enought to
// integer boundaries that we can just treat it as a BW rect?
if (nearly_integral(r.fLeft) && nearly_integral(r.fTop) &&
nearly_integral(r.fRight) && nearly_integral(r.fBottom)) {
doAA = false;
}
}
if (fIsBW && !doAA) {
SkIRect ir;
r.round(&ir);
(void)fBW.op(ir, op);
} else {
if (fIsBW) {
this->convertToAA();
}
(void)fAA.op(r, op, doAA);
}
return this->updateCacheAndReturnNonEmpty();
}
bool SkRasterClip::op(const SkIRect& rect, SkRegion::Op op) {
AUTO_RASTERCLIP_VALIDATE(*this);
return fIsBW ? fBW.op(rect, op) : fAA.op(rect, op);
}
SkRasterClip::~SkRasterClip() {
AUTO_RASTERCLIP_VALIDATE(*this);
}
bool SkRasterClip::op(const SkIRect& rect, SkRegion::Op op) {
AUTO_RASTERCLIP_VALIDATE(*this);
fIsBW ? fBW.op(rect, op) : fAA.op(rect, op);
return this->updateCacheAndReturnNonEmpty();
}