f79ec0f398
Add the copybit iterator which takes a single rectangle as an input. Change-Id: I6fd496450c29ed06ffbfad62b5c880e837450791
58 lines
2.3 KiB
C++
58 lines
2.3 KiB
C++
/*
|
|
* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above
|
|
* copyright notice, this list of conditions and the following
|
|
* disclaimer in the documentation and/or other materials provided
|
|
* with the distribution.
|
|
* * Neither the name of Code Aurora Forum, Inc. nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
|
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
|
|
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
|
|
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
|
|
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <copybit.h>
|
|
struct copybit_iterator : public copybit_region_t {
|
|
copybit_iterator(const copybit_rect_t& rect) {
|
|
mRect = rect;
|
|
mCount = 1;
|
|
this->next = iterate;
|
|
}
|
|
private:
|
|
static int iterate(copybit_region_t const * self, copybit_rect_t* rect) {
|
|
if (!self || !rect) {
|
|
return 0;
|
|
}
|
|
|
|
copybit_iterator const* me = static_cast<copybit_iterator const*>(self);
|
|
if (me->mCount) {
|
|
rect->l = me->mRect.l;
|
|
rect->t = me->mRect.t;
|
|
rect->r = me->mRect.r;
|
|
rect->b = me->mRect.b;
|
|
me->mCount--;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
copybit_rect_t mRect;
|
|
mutable int mCount;
|
|
};
|
|
|