SkSGInvalidationController.cpp

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/*
 * Copyright 2017 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
#include "modules/sksg/include/SkSGInvalidationController.h"
 
#include "include/core/SkRect.h"
#include "src/base/SkTLazy.h"
 
namespace sksg {
 
InvalidationController::InvalidationController() : fBounds(SkRect::MakeEmpty()) {}
 
void InvalidationController::inval(const SkRect& r, const SkMatrix& ctm) {
    if (r.isEmpty()) {
        return;
    }
 
    SkTCopyOnFirstWrite<SkRect> rect(r);
 
    if (!ctm.isIdentity()) {
        ctm.mapRect(rect.writable());
    }
 
    fRects.push_back(*rect);
    fBounds.join(*rect);
}
 
void InvalidationController::reset() {
    fRects.clear();
    fBounds.setEmpty();
}
 
} // namespace sksg