1/* Copyright (c) 2013, The Linux Foundation. All rights reserved. 2* Redistribution and use in source and binary forms, with or without 3* * modification, are permitted provided that the following conditions are 4* met: 5* * Redistributions of source code must retain the above copyrigh 6* notice, this list of conditions and the following disclaimer 7* * Redistributions in binary form must reproduce the above 8* copyright notice, this list of conditions and the following 9* disclaimer in the documentation and/or other materials provided 10* with the distribution. 11* * Neither the name of The Linux Foundation nor the names of its 12* contributors may be used to endorse or promote products derived 13* from this software without specific prior written permission. 14* 15* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 16* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 17* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 18* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 19* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 22* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 23* * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 24* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 25* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26*/ 27 28#include "cb_utils.h" 29#include "cb_swap_rect.h" 30/* get union of two rects into 3rd rect */ 31void getUnion(hwc_rect_t& rect1,hwc_rect_t& rect2, hwc_rect_t& irect) { 32 33 irect.left = min(rect1.left, rect2.left); 34 irect.top = min(rect1.top, rect2.top); 35 irect.right = max(rect1.right, rect2.right); 36 irect.bottom = max(rect1.bottom, rect2.bottom); 37} 38 39using namespace android; 40using namespace qhwc; 41namespace qdutils { 42 43int CBUtils::getuiClearRegion(hwc_display_contents_1_t* list, 44 hwc_rect_t &clearWormholeRect, LayerProp *layerProp) { 45 46 size_t last = list->numHwLayers - 1; 47 hwc_rect_t fbFrame = list->hwLayers[last].displayFrame; 48 Rect fbFrameRect(fbFrame.left,fbFrame.top,fbFrame.right,fbFrame.bottom); 49 Region wormholeRegion(fbFrameRect); 50 51 if(cb_swap_rect::getInstance().checkSwapRectFeature_on() == true){ 52 wormholeRegion.set(0,0); 53 for(size_t i = 0 ; i < last; i++) { 54 if(((list->hwLayers[i].blending == HWC_BLENDING_NONE) && 55 (list->hwLayers[i].planeAlpha == 0xFF)) || 56 !(layerProp[i].mFlags & HWC_COPYBIT) || 57 (list->hwLayers[i].flags & HWC_SKIP_HWC_COMPOSITION)) 58 continue ; 59 hwc_rect_t displayFrame = list->hwLayers[i].displayFrame; 60 Rect tmpRect(displayFrame.left,displayFrame.top, 61 displayFrame.right,displayFrame.bottom); 62 wormholeRegion.set(tmpRect); 63 } 64 }else{ 65 for (size_t i = 0 ; i < last; i++) { 66 // need to take care only in per pixel blending. 67 // Restrict calculation only for copybit layers. 68 if((list->hwLayers[i].blending != HWC_BLENDING_NONE) || 69 (list->hwLayers[i].planeAlpha != 0xFF) || 70 !(layerProp[i].mFlags & HWC_COPYBIT)) 71 continue ; 72 hwc_rect_t displayFrame = list->hwLayers[i].displayFrame; 73 Rect tmpRect(displayFrame.left,displayFrame.top,displayFrame.right, 74 displayFrame.bottom); 75 Region tmpRegion(tmpRect); 76 wormholeRegion.subtractSelf(wormholeRegion.intersect(tmpRegion)); 77 } 78 } 79 if(wormholeRegion.isEmpty()){ 80 return 0; 81 } 82 //TO DO :- 1. remove union and call clear for each rect. 83 Region::const_iterator it = wormholeRegion.begin(); 84 Region::const_iterator const end = wormholeRegion.end(); 85 while (it != end) { 86 const Rect& r = *it++; 87 hwc_rect_t tmpWormRect = {r.left,r.top,r.right,r.bottom}; 88 int dst_w = clearWormholeRect.right - clearWormholeRect.left; 89 int dst_h = clearWormholeRect.bottom - clearWormholeRect.top; 90 91 if (!(dst_w || dst_h)) 92 clearWormholeRect = tmpWormRect; 93 else 94 getUnion(clearWormholeRect, tmpWormRect, clearWormholeRect); 95 96 } 97 return 1; 98} 99 100}//namespace qdutils 101