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57 lines
2.3 KiB
57 lines
2.3 KiB
4 months ago
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/*
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* Copyright (c) 2011, The Linux Foundation. All rights reserved.
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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 <copybit.h>
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struct copybit_iterator : public copybit_region_t {
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copybit_iterator(const copybit_rect_t& rect) {
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mRect = rect;
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mCount = 1;
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this->next = iterate;
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}
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private:
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static int iterate(copybit_region_t const * self, copybit_rect_t* rect) {
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if (!self || !rect) {
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return 0;
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}
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copybit_iterator const* me = static_cast<copybit_iterator const*>(self);
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if (me->mCount) {
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rect->l = me->mRect.l;
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rect->t = me->mRect.t;
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rect->r = me->mRect.r;
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rect->b = me->mRect.b;
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me->mCount--;
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return 1;
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}
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return 0;
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}
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copybit_rect_t mRect;
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mutable int mCount;
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};
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