1befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed/* 25070c694011ddc30673ec68a9d1d74dc713c49f2Duy Truong * Copyright (c) 2011, The Linux Foundation. All rights reserved. 3befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed 4befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * Redistribution and use in source and binary forms, with or without 5befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * modification, are permitted provided that the following conditions are 6befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * met: 7befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * * Redistributions of source code must retain the above copyright 8befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * notice, this list of conditions and the following disclaimer. 9befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * * Redistributions in binary form must reproduce the above 10befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * copyright notice, this list of conditions and the following 11befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * disclaimer in the documentation and/or other materials provided 12befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * with the distribution. 135070c694011ddc30673ec68a9d1d74dc713c49f2Duy Truong * * Neither the name of The Linux Foundation nor the names of its 14befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * contributors may be used to endorse or promote products derived 15befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * from this software without specific prior written permission. 16befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * 17befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed */ 29befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed 30befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed#include <copybit.h> 31befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmedstruct copybit_iterator : public copybit_region_t { 32befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed copybit_iterator(const copybit_rect_t& rect) { 33befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed mRect = rect; 34befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed mCount = 1; 35befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed this->next = iterate; 36befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed } 37befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmedprivate: 38befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed static int iterate(copybit_region_t const * self, copybit_rect_t* rect) { 39befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed if (!self || !rect) { 40befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed return 0; 41befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed } 42befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed 43befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed copybit_iterator const* me = static_cast<copybit_iterator const*>(self); 44befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed if (me->mCount) { 45befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed rect->l = me->mRect.l; 46befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed rect->t = me->mRect.t; 47befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed rect->r = me->mRect.r; 48befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed rect->b = me->mRect.b; 49befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed me->mCount--; 50befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed return 1; 51befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed } 52befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed return 0; 53befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed } 54befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed copybit_rect_t mRect; 55befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed mutable int mCount; 56befc466069680cb8a65b1f22ad44723d949128c8Naseer Ahmed}; 57