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 #include <ui/Region.h>
31 /* get union of two rects into 3rd rect */
getUnion(hwc_rect_t & rect1,hwc_rect_t & rect2,hwc_rect_t & irect)32 void getUnion(hwc_rect_t& rect1,hwc_rect_t& rect2, hwc_rect_t& irect) {
33
34 irect.left = min(rect1.left, rect2.left);
35 irect.top = min(rect1.top, rect2.top);
36 irect.right = max(rect1.right, rect2.right);
37 irect.bottom = max(rect1.bottom, rect2.bottom);
38 }
39
40 using namespace android;
41 using namespace qhwc;
42 namespace qdutils {
43
getuiClearRegion(hwc_display_contents_1_t * list,hwc_rect_t & clearWormholeRect,LayerProp * layerProp)44 int CBUtils::getuiClearRegion(hwc_display_contents_1_t* list,
45 hwc_rect_t &clearWormholeRect, LayerProp *layerProp) {
46
47 size_t last = list->numHwLayers - 1;
48 hwc_rect_t fbFrame = list->hwLayers[last].displayFrame;
49 Rect fbFrameRect(fbFrame.left,fbFrame.top,fbFrame.right,fbFrame.bottom);
50 Region wormholeRegion(fbFrameRect);
51
52 if(cb_swap_rect::getInstance().checkSwapRectFeature_on() == true){
53 wormholeRegion.set(0,0);
54 for(size_t i = 0 ; i < last; i++) {
55 if((list->hwLayers[i].blending == HWC_BLENDING_NONE) ||
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 !(layerProp[i].mFlags & HWC_COPYBIT))
70 continue ;
71 hwc_rect_t displayFrame = list->hwLayers[i].displayFrame;
72 Rect tmpRect(displayFrame.left,displayFrame.top,displayFrame.right,
73 displayFrame.bottom);
74 Region tmpRegion(tmpRect);
75 wormholeRegion.subtractSelf(wormholeRegion.intersect(tmpRegion));
76 }
77 }
78 if(wormholeRegion.isEmpty()){
79 return 0;
80 }
81 //TO DO :- 1. remove union and call clear for each rect.
82 Region::const_iterator it = wormholeRegion.begin();
83 Region::const_iterator const end = wormholeRegion.end();
84 while (it != end) {
85 const Rect& r = *it++;
86 hwc_rect_t tmpWormRect = {r.left,r.top,r.right,r.bottom};
87 int dst_w = clearWormholeRect.right - clearWormholeRect.left;
88 int dst_h = clearWormholeRect.bottom - clearWormholeRect.top;
89
90 if (!(dst_w || dst_h))
91 clearWormholeRect = tmpWormRect;
92 else
93 getUnion(clearWormholeRect, tmpWormRect, clearWormholeRect);
94
95 }
96 return 1;
97 }
98
99 }//namespace qdutils
100