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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include "Frame.h"
     18 #include <SkRect.h>
     19 
     20 namespace android {
     21 namespace uirenderer {
     22 namespace renderthread {
     23 
     24 void Frame::map(const SkRect& in, int32_t* out) const {
     25     /* The rectangles are specified relative to the bottom-left of the surface
     26      * and the x and y components of each rectangle specify the bottom-left
     27      * position of that rectangle.
     28      *
     29      * HWUI does everything with 0,0 being top-left, so need to map
     30      * the rect
     31      */
     32     SkIRect idirty;
     33     in.roundOut(&idirty);
     34     int32_t y = mHeight - (idirty.y() + idirty.height());
     35     // layout: {x, y, width, height}
     36     out[0] = idirty.x();
     37     out[1] = y;
     38     out[2] = idirty.width();
     39     out[3] = idirty.height();
     40 }
     41 
     42 } /* namespace renderthread */
     43 } /* namespace uirenderer */
     44 } /* namespace android */
     45