b86bc17763
Define rect helper functions used by SDE. Change-Id: Ib8e0bc9493a40fa59a3cf90a115352edd4264a92
60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
/*
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* Copyright (c) 2015, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <utils/rect.h>
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namespace sde {
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bool IsValidRect(const LayerRect &rect) {
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return ((rect.bottom > rect.top) && (rect.right > rect.left));
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}
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LayerRect GetIntersection(const LayerRect &rect1, const LayerRect &rect2) {
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LayerRect res;
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if (!IsValidRect(rect1) || !IsValidRect(rect2)) {
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return LayerRect();
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}
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res.left = MAX(rect1.left, rect2.left);
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res.top = MAX(rect1.top, rect2.top);
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res.right = MIN(rect1.right, rect2.right);
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res.bottom = MIN(rect1.bottom, rect2.bottom);
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if (!IsValidRect(res)) {
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return LayerRect();
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}
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return res;
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}
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} // namespace sde
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