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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkOpPE.h"
#include "SkStrokeRec.h"
#include "SkReadBuffer.h"
#include "SkWriteBuffer.h"
sk_sp<SkPathEffect> SkMergePathEffect::Make(sk_sp<SkPathEffect> one, sk_sp<SkPathEffect> two,
SkPathOp op) {
return sk_sp<SkPathEffect>(new SkOpPE(std::move(one), std::move(two), op));
}
SkOpPE::SkOpPE(sk_sp<SkPathEffect> one, sk_sp<SkPathEffect> two, SkPathOp op)
: fOne(std::move(one)), fTwo(std::move(two)), fOp(op) {}
bool SkOpPE::filterPath(SkPath* dst, const SkPath& src, SkStrokeRec* rec,
const SkRect* cull) const {
SkPath one, two;
if (fOne) {
if (!fOne->filterPath(&one, src, rec, cull)) {
return false;
}
} else {
one = src;
}
if (fTwo) {
if (!fTwo->filterPath(&two, src, rec, cull)) {
return false;
}
} else {
two = src;
}
return Op(one, two, fOp, dst);
}
void SkOpPE::flatten(SkWriteBuffer& buffer) const {
buffer.writeFlattenable(fOne.get());
buffer.writeFlattenable(fTwo.get());
buffer.write32(fOp);
}
sk_sp<SkFlattenable> SkOpPE::CreateProc(SkReadBuffer& buffer) {
auto one = buffer.readPathEffect();
auto two = buffer.readPathEffect();
SkPathOp op = buffer.read32LE(kReverseDifference_SkPathOp);
return buffer.isValid() ? SkMergePathEffect::Make(std::move(one), std::move(two), op) : nullptr;
}
//////////////////////////////////////////////////////////////////////////////////////////////////
sk_sp<SkPathEffect> SkMatrixPathEffect::MakeTranslate(SkScalar dx, SkScalar dy) {
if (!SkScalarsAreFinite(dx, dy)) {
return nullptr;
}
return sk_sp<SkPathEffect>(new SkMatrixPE(SkMatrix::MakeTrans(dx, dy)));
}
sk_sp<SkPathEffect> SkMatrixPathEffect::Make(const SkMatrix& matrix) {
if (!matrix.isFinite()) {
return nullptr;
}
return sk_sp<SkPathEffect>(new SkMatrixPE(matrix));
}
SkMatrixPE::SkMatrixPE(const SkMatrix& matrix) : fMatrix(matrix) {
SkASSERT(matrix.isFinite());
}
bool SkMatrixPE::filterPath(SkPath* dst, const SkPath& src, SkStrokeRec*, const SkRect*) const {
src.transform(fMatrix, dst);
return true;
}
void SkMatrixPE::flatten(SkWriteBuffer& buffer) const {
buffer.writeMatrix(fMatrix);
}
sk_sp<SkFlattenable> SkMatrixPE::CreateProc(SkReadBuffer& buffer) {
SkMatrix mx;
buffer.readMatrix(&mx);
return buffer.isValid() ? SkMatrixPathEffect::Make(mx) : nullptr;
}
//////////////////////////////////////////////////////////////////////////////////////////////////
sk_sp<SkPathEffect> SkStrokePathEffect::Make(SkScalar width, SkPaint::Join join, SkPaint::Cap cap,
SkScalar miter) {
if (!SkScalarsAreFinite(width, miter) || width < 0 || miter < 0) {
return nullptr;
}
return sk_sp<SkPathEffect>(new SkStrokePE(width, join, cap, miter));
}
SkStrokePE::SkStrokePE(SkScalar width, SkPaint::Join join, SkPaint::Cap cap, SkScalar miter)
: fWidth(width), fMiter(miter), fJoin(join), fCap(cap) {}
bool SkStrokePE::filterPath(SkPath* dst, const SkPath& src, SkStrokeRec*, const SkRect*) const {
SkStrokeRec rec(SkStrokeRec::kFill_InitStyle);
rec.setStrokeStyle(fWidth);
rec.setStrokeParams(fCap, fJoin, fMiter);
return rec.applyToPath(dst, src);
}
void SkStrokePE::flatten(SkWriteBuffer& buffer) const {
buffer.writeScalar(fWidth);
buffer.writeScalar(fMiter);
buffer.write32(fJoin);
buffer.write32(fCap);
}
sk_sp<SkFlattenable> SkStrokePE::CreateProc(SkReadBuffer& buffer) {
SkScalar width = buffer.readScalar();
SkScalar miter = buffer.readScalar();
SkPaint::Join join = buffer.read32LE(SkPaint::kLast_Join);
SkPaint::Cap cap = buffer.read32LE(SkPaint::kLast_Cap);
return buffer.isValid() ? SkStrokePathEffect::Make(width, join, cap, miter) : nullptr;
}
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