1 files changed, 124 insertions, 0 deletions
diff --git a/gfx/skia/skia/src/effects/SkOpPathEffect.cpp b/gfx/skia/skia/src/effects/SkOpPathEffect.cpp
new file mode 100644
index 0000000000..e7b8a604bd
--- /dev/null
+++ b/gfx/skia/skia/src/effects/SkOpPathEffect.cpp
@@ -0,0 +1,124 @@
+/*
+ * 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 "include/core/SkStrokeRec.h"
+#include "src/core/SkReadBuffer.h"
+#include "src/core/SkWriteBuffer.h"
+#include "src/effects/SkOpPE.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::onFilterPath(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::onFilterPath(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::onFilterPath(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;
+}
+
+