Region.cpp revision aef0445c6f1fbd818b594383217a13571bbd95ad
1edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project/* 2edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 3edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * 4edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * you may not use this file except in compliance with the License. 6edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * You may obtain a copy of the License at 7edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * 8edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * 10edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * See the License for the specific language governing permissions and 14edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project * limitations under the License. 15edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project */ 16edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 17edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#define LOG_TAG "Region" 18edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 1992dc3fc52cf097bd105460cf377779bdcf146d62Mark Salyzyn#include <inttypes.h> 2072b0ffe4c3776b33844bb00b9be5693bddd391f9Mathias Agopian#include <limits.h> 2172b0ffe4c3776b33844bb00b9be5693bddd391f9Mathias Agopian 2220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#include <utils/Log.h> 23edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <utils/String8.h> 24068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian#include <utils/CallStack.h> 2520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 2620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#include <ui/Rect.h> 27edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <ui/Region.h> 2820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#include <ui/Point.h> 2920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 3020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#include <private/ui/RegionHelper.h> 3120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 3220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 3320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#define VALIDATE_REGIONS (false) 3420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#define VALIDATE_WITH_CORECG (false) 3520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 3620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 3720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#if VALIDATE_WITH_CORECG 3820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#include <core/SkRegion.h> 3920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#endif 40edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 41edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectnamespace android { 4220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 4320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 4420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianenum { 4520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian op_nand = region_operator<Rect>::op_nand, 4620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian op_and = region_operator<Rect>::op_and, 4720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian op_or = region_operator<Rect>::op_or, 4820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian op_xor = region_operator<Rect>::op_xor 4920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian}; 50edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 513e010f3138593cc6953039ee0e3db8ee31881296Chris Craikenum { 523e010f3138593cc6953039ee0e3db8ee31881296Chris Craik direction_LTR, 533e010f3138593cc6953039ee0e3db8ee31881296Chris Craik direction_RTL 543e010f3138593cc6953039ee0e3db8ee31881296Chris Craik}; 553e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 56edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// ---------------------------------------------------------------------------- 57edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 583ab68558fa5a4b8f792a54965a010f03385bd271Mathias AgopianRegion::Region() { 593ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.add(Rect(0,0)); 60edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 61edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 62edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion::Region(const Region& rhs) 633ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian : mStorage(rhs.mStorage) 64edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 65d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian#if VALIDATE_REGIONS 66d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian validate(rhs, "rhs copy-ctor"); 67d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian#endif 68edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 69edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 703ab68558fa5a4b8f792a54965a010f03385bd271Mathias AgopianRegion::Region(const Rect& rhs) { 713ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.add(rhs); 72edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 73edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 7420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion::~Region() 75edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 76edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 77edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 783e010f3138593cc6953039ee0e3db8ee31881296Chris Craik/** 793e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * Copy rects from the src vector into the dst vector, resolving vertical T-Junctions along the way 803e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * 813e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * First pass through, divideSpanRTL will be set because the 'previous span' (indexing into the dst 823e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * vector) will be reversed. Each rectangle in the original list, starting from the bottom, will be 833e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * compared with the span directly below, and subdivided as needed to resolve T-junctions. 843e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * 853e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * The resulting temporary vector will be a completely reversed copy of the original, without any 863e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * bottom-up T-junctions. 873e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * 883e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * Second pass through, divideSpanRTL will be false since the previous span will index into the 893e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * final, correctly ordered region buffer. Each rectangle will be compared with the span directly 903e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * above it, and subdivided to resolve any remaining T-junctions. 913e010f3138593cc6953039ee0e3db8ee31881296Chris Craik */ 923e010f3138593cc6953039ee0e3db8ee31881296Chris Craikstatic void reverseRectsResolvingJunctions(const Rect* begin, const Rect* end, 933e010f3138593cc6953039ee0e3db8ee31881296Chris Craik Vector<Rect>& dst, int spanDirection) { 943e010f3138593cc6953039ee0e3db8ee31881296Chris Craik dst.clear(); 953e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 963e010f3138593cc6953039ee0e3db8ee31881296Chris Craik const Rect* current = end - 1; 973e010f3138593cc6953039ee0e3db8ee31881296Chris Craik int lastTop = current->top; 983e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 993e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // add first span immediately 1003e010f3138593cc6953039ee0e3db8ee31881296Chris Craik do { 1013e010f3138593cc6953039ee0e3db8ee31881296Chris Craik dst.add(*current); 1023e010f3138593cc6953039ee0e3db8ee31881296Chris Craik current--; 1033e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } while (current->top == lastTop && current >= begin); 1043e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 105d31824004277f554000417cea349d69f18655e95Dan Stoza int beginLastSpan = -1; 106d31824004277f554000417cea349d69f18655e95Dan Stoza int endLastSpan = -1; 1073e010f3138593cc6953039ee0e3db8ee31881296Chris Craik int top = -1; 1083e010f3138593cc6953039ee0e3db8ee31881296Chris Craik int bottom = -1; 1093e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1103e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // for all other spans, split if a t-junction exists in the span directly above 1113e010f3138593cc6953039ee0e3db8ee31881296Chris Craik while (current >= begin) { 1123e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (current->top != (current + 1)->top) { 1133e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // new span 1143e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if ((spanDirection == direction_RTL && current->bottom != (current + 1)->top) || 1153e010f3138593cc6953039ee0e3db8ee31881296Chris Craik (spanDirection == direction_LTR && current->top != (current + 1)->bottom)) { 1163e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // previous span not directly adjacent, don't check for T junctions 1173e010f3138593cc6953039ee0e3db8ee31881296Chris Craik beginLastSpan = INT_MAX; 1183e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } else { 1193e010f3138593cc6953039ee0e3db8ee31881296Chris Craik beginLastSpan = endLastSpan + 1; 1203e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 121d31824004277f554000417cea349d69f18655e95Dan Stoza endLastSpan = static_cast<int>(dst.size()) - 1; 1223e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1233e010f3138593cc6953039ee0e3db8ee31881296Chris Craik top = current->top; 1243e010f3138593cc6953039ee0e3db8ee31881296Chris Craik bottom = current->bottom; 1253e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1263e010f3138593cc6953039ee0e3db8ee31881296Chris Craik int left = current->left; 1273e010f3138593cc6953039ee0e3db8ee31881296Chris Craik int right = current->right; 1283e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 129d31824004277f554000417cea349d69f18655e95Dan Stoza for (int prevIndex = beginLastSpan; prevIndex <= endLastSpan; prevIndex++) { 130d31824004277f554000417cea349d69f18655e95Dan Stoza // prevIndex can't be -1 here because if endLastSpan is set to a 131d31824004277f554000417cea349d69f18655e95Dan Stoza // value greater than -1 (allowing the loop to execute), 132d31824004277f554000417cea349d69f18655e95Dan Stoza // beginLastSpan (and therefore prevIndex) will also be increased 133aef0445c6f1fbd818b594383217a13571bbd95adywen const Rect prev = dst[static_cast<size_t>(prevIndex)]; 1343e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (spanDirection == direction_RTL) { 1353e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // iterating over previous span RTL, quit if it's too far left 136aef0445c6f1fbd818b594383217a13571bbd95adywen if (prev.right <= left) break; 1373e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 138aef0445c6f1fbd818b594383217a13571bbd95adywen if (prev.right > left && prev.right < right) { 139aef0445c6f1fbd818b594383217a13571bbd95adywen dst.add(Rect(prev.right, top, right, bottom)); 140aef0445c6f1fbd818b594383217a13571bbd95adywen right = prev.right; 1413e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1423e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 143aef0445c6f1fbd818b594383217a13571bbd95adywen if (prev.left > left && prev.left < right) { 144aef0445c6f1fbd818b594383217a13571bbd95adywen dst.add(Rect(prev.left, top, right, bottom)); 145aef0445c6f1fbd818b594383217a13571bbd95adywen right = prev.left; 1463e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1473e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1483e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // if an entry in the previous span is too far right, nothing further left in the 1493e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // current span will need it 150aef0445c6f1fbd818b594383217a13571bbd95adywen if (prev.left >= right) { 1513e010f3138593cc6953039ee0e3db8ee31881296Chris Craik beginLastSpan = prevIndex; 1523e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1533e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } else { 1543e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // iterating over previous span LTR, quit if it's too far right 155aef0445c6f1fbd818b594383217a13571bbd95adywen if (prev.left >= right) break; 1563e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 157aef0445c6f1fbd818b594383217a13571bbd95adywen if (prev.left > left && prev.left < right) { 158aef0445c6f1fbd818b594383217a13571bbd95adywen dst.add(Rect(left, top, prev.left, bottom)); 159aef0445c6f1fbd818b594383217a13571bbd95adywen left = prev.left; 1603e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1613e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 162aef0445c6f1fbd818b594383217a13571bbd95adywen if (prev.right > left && prev.right < right) { 163aef0445c6f1fbd818b594383217a13571bbd95adywen dst.add(Rect(left, top, prev.right, bottom)); 164aef0445c6f1fbd818b594383217a13571bbd95adywen left = prev.right; 1653e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1663e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // if an entry in the previous span is too far left, nothing further right in the 1673e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // current span will need it 168aef0445c6f1fbd818b594383217a13571bbd95adywen if (prev.right <= left) { 1693e010f3138593cc6953039ee0e3db8ee31881296Chris Craik beginLastSpan = prevIndex; 1703e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1713e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1723e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1733e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1743e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (left < right) { 1753e010f3138593cc6953039ee0e3db8ee31881296Chris Craik dst.add(Rect(left, top, right, bottom)); 1763e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1773e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1783e010f3138593cc6953039ee0e3db8ee31881296Chris Craik current--; 1793e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1803e010f3138593cc6953039ee0e3db8ee31881296Chris Craik} 1813e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1823e010f3138593cc6953039ee0e3db8ee31881296Chris Craik/** 1833e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * Creates a new region with the same data as the argument, but divides rectangles as necessary to 1843e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * remove T-Junctions 1853e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * 1863e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * Note: the output will not necessarily be a very efficient representation of the region, since it 1873e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * may be that a triangle-based approach would generate significantly simpler geometry 1883e010f3138593cc6953039ee0e3db8ee31881296Chris Craik */ 1893e010f3138593cc6953039ee0e3db8ee31881296Chris CraikRegion Region::createTJunctionFreeRegion(const Region& r) { 1903e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (r.isEmpty()) return r; 1913e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (r.isRect()) return r; 1923e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1933e010f3138593cc6953039ee0e3db8ee31881296Chris Craik Vector<Rect> reversed; 1943e010f3138593cc6953039ee0e3db8ee31881296Chris Craik reverseRectsResolvingJunctions(r.begin(), r.end(), reversed, direction_RTL); 1953e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1963e010f3138593cc6953039ee0e3db8ee31881296Chris Craik Region outputRegion; 1973e010f3138593cc6953039ee0e3db8ee31881296Chris Craik reverseRectsResolvingJunctions(reversed.begin(), reversed.end(), 1983e010f3138593cc6953039ee0e3db8ee31881296Chris Craik outputRegion.mStorage, direction_LTR); 1993e010f3138593cc6953039ee0e3db8ee31881296Chris Craik outputRegion.mStorage.add(r.getBounds()); // to make region valid, mStorage must end with bounds 2003e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 2013e010f3138593cc6953039ee0e3db8ee31881296Chris Craik#if VALIDATE_REGIONS 2023e010f3138593cc6953039ee0e3db8ee31881296Chris Craik validate(outputRegion, "T-Junction free region"); 2033e010f3138593cc6953039ee0e3db8ee31881296Chris Craik#endif 2043e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 2053e010f3138593cc6953039ee0e3db8ee31881296Chris Craik return outputRegion; 2063e010f3138593cc6953039ee0e3db8ee31881296Chris Craik} 2073e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 20820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion& Region::operator = (const Region& rhs) 209edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 21020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#if VALIDATE_REGIONS 211d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian validate(*this, "this->operator="); 212d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian validate(rhs, "rhs.operator="); 21320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#endif 21420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian mStorage = rhs.mStorage; 21520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return *this; 216edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 217edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 2189f96145725ff3f265712d607d19078fb91a5c8ecMathias AgopianRegion& Region::makeBoundsSelf() 2199f96145725ff3f265712d607d19078fb91a5c8ecMathias Agopian{ 2203ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian if (mStorage.size() >= 2) { 2213ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian const Rect bounds(getBounds()); 2223ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.clear(); 2233ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.add(bounds); 2243ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian } 2259f96145725ff3f265712d607d19078fb91a5c8ecMathias Agopian return *this; 2269f96145725ff3f265712d607d19078fb91a5c8ecMathias Agopian} 2279f96145725ff3f265712d607d19078fb91a5c8ecMathias Agopian 2281c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wrightbool Region::contains(const Point& point) const { 2291c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wright return contains(point.x, point.y); 2301c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wright} 2311c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wright 2321c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wrightbool Region::contains(int x, int y) const { 2331c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wright const_iterator cur = begin(); 2341c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wright const_iterator const tail = end(); 2351c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wright while (cur != tail) { 2361c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wright if (y >= cur->top && y < cur->bottom && x >= cur->left && x < cur->right) { 2371c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wright return true; 2381c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wright } 2391c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wright cur++; 2401c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wright } 2411c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wright return false; 2421c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wright} 2431c284a9431f98bbefd27a30c3368bbf7366dff3aMichael Wright 244edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid Region::clear() 245edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 24620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian mStorage.clear(); 2473ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.add(Rect(0,0)); 248edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 249edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 250edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid Region::set(const Rect& r) 251edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 25220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian mStorage.clear(); 2533ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.add(r); 254edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 255edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 256d31824004277f554000417cea349d69f18655e95Dan Stozavoid Region::set(int32_t w, int32_t h) 2570926f50664c739eaee60341f8e8c694dc9a4f3ebMathias Agopian{ 25820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian mStorage.clear(); 259d31824004277f554000417cea349d69f18655e95Dan Stoza mStorage.add(Rect(w, h)); 2600926f50664c739eaee60341f8e8c694dc9a4f3ebMathias Agopian} 2610926f50664c739eaee60341f8e8c694dc9a4f3ebMathias Agopian 262fe4966d59b31ae6fd6dd4d81dd73d2f4f7be33feBernhard Rosenkraenzervoid Region::set(uint32_t w, uint32_t h) 263fe4966d59b31ae6fd6dd4d81dd73d2f4f7be33feBernhard Rosenkraenzer{ 264fe4966d59b31ae6fd6dd4d81dd73d2f4f7be33feBernhard Rosenkraenzer mStorage.clear(); 265fe4966d59b31ae6fd6dd4d81dd73d2f4f7be33feBernhard Rosenkraenzer mStorage.add(Rect(w, h)); 266fe4966d59b31ae6fd6dd4d81dd73d2f4f7be33feBernhard Rosenkraenzer} 267fe4966d59b31ae6fd6dd4d81dd73d2f4f7be33feBernhard Rosenkraenzer 2682ca79399b933935eb1b6c0ec1f746f8c4475369cMathias Agopianbool Region::isTriviallyEqual(const Region& region) const { 2692ca79399b933935eb1b6c0ec1f746f8c4475369cMathias Agopian return begin() == region.begin(); 2702ca79399b933935eb1b6c0ec1f746f8c4475369cMathias Agopian} 2712ca79399b933935eb1b6c0ec1f746f8c4475369cMathias Agopian 272edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// ---------------------------------------------------------------------------- 273edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 27420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianvoid Region::addRectUnchecked(int l, int t, int r, int b) 275edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 2763ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian Rect rect(l,t,r,b); 2773ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian size_t where = mStorage.size() - 1; 2783ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.insertAt(rect, where, 1); 279edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 280edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 28120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 28220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 28320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion& Region::orSelf(const Rect& r) { 28420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(r, op_or); 28520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 286b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain GuyRegion& Region::xorSelf(const Rect& r) { 287b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy return operationSelf(r, op_xor); 288b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy} 28920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion& Region::andSelf(const Rect& r) { 29020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(r, op_and); 29120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 29220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion& Region::subtractSelf(const Rect& r) { 29320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(r, op_nand); 29420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 29520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion& Region::operationSelf(const Rect& r, int op) { 29620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Region lhs(*this); 29720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, *this, lhs, r); 298edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return *this; 299edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 300edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 301edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// ---------------------------------------------------------------------------- 302edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 303edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion& Region::orSelf(const Region& rhs) { 30420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(rhs, op_or); 305edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 306b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain GuyRegion& Region::xorSelf(const Region& rhs) { 307b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy return operationSelf(rhs, op_xor); 308b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy} 309edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion& Region::andSelf(const Region& rhs) { 31020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(rhs, op_and); 311edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 312edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion& Region::subtractSelf(const Region& rhs) { 31320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(rhs, op_nand); 31420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 31520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion& Region::operationSelf(const Region& rhs, int op) { 31620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Region lhs(*this); 31720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, *this, lhs, rhs); 318edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return *this; 319edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 320edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 321edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion& Region::translateSelf(int x, int y) { 32220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (x|y) translate(*this, x, y); 323edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return *this; 324edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 325edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 32620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 32720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 328bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::merge(const Rect& rhs) const { 32920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, op_or); 33020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 331b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guyconst Region Region::mergeExclusive(const Rect& rhs) const { 332b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy return operation(rhs, op_xor); 333b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy} 334bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::intersect(const Rect& rhs) const { 33520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, op_and); 33620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 337bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::subtract(const Rect& rhs) const { 33820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, op_nand); 33920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 340bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::operation(const Rect& rhs, int op) const { 341edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Region result; 34220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, result, *this, rhs); 343edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return result; 344edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 345edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 34620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 34720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 348bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::merge(const Region& rhs) const { 34920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, op_or); 35020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 351b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guyconst Region Region::mergeExclusive(const Region& rhs) const { 352b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy return operation(rhs, op_xor); 353b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy} 354bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::intersect(const Region& rhs) const { 35520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, op_and); 356edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 357bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::subtract(const Region& rhs) const { 35820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, op_nand); 35920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 360bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::operation(const Region& rhs, int op) const { 361edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Region result; 36220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, result, *this, rhs); 363edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return result; 364edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 365edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 366bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::translate(int x, int y) const { 367edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Region result; 36820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian translate(result, *this, x, y); 369edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return result; 370edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 371edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 372edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// ---------------------------------------------------------------------------- 373edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 374edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion& Region::orSelf(const Region& rhs, int dx, int dy) { 37520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(rhs, dx, dy, op_or); 376edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 377b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain GuyRegion& Region::xorSelf(const Region& rhs, int dx, int dy) { 378b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy return operationSelf(rhs, dx, dy, op_xor); 379b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy} 380edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion& Region::andSelf(const Region& rhs, int dx, int dy) { 38120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(rhs, dx, dy, op_and); 382edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 383edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion& Region::subtractSelf(const Region& rhs, int dx, int dy) { 38420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(rhs, dx, dy, op_nand); 38520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 38620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion& Region::operationSelf(const Region& rhs, int dx, int dy, int op) { 38720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Region lhs(*this); 38820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, *this, lhs, rhs, dx, dy); 389edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return *this; 390edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 391edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 39220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 39320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 394bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::merge(const Region& rhs, int dx, int dy) const { 39520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, dx, dy, op_or); 396edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 397b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guyconst Region Region::mergeExclusive(const Region& rhs, int dx, int dy) const { 398b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy return operation(rhs, dx, dy, op_xor); 399b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy} 400bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::intersect(const Region& rhs, int dx, int dy) const { 40120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, dx, dy, op_and); 402edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 403bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::subtract(const Region& rhs, int dx, int dy) const { 40420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, dx, dy, op_nand); 40520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 406bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::operation(const Region& rhs, int dx, int dy, int op) const { 407edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Region result; 40820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, result, *this, rhs, dx, dy); 409edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return result; 410edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 411edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 412edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// ---------------------------------------------------------------------------- 413edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 41420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// This is our region rasterizer, which merges rects and spans together 41520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// to obtain an optimal region. 416d31824004277f554000417cea349d69f18655e95Dan Stozaclass Region::rasterizer : public region_operator<Rect>::region_rasterizer 41720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian{ 4183ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian Rect bounds; 41920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Vector<Rect>& storage; 42020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect* head; 42120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect* tail; 42220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Vector<Rect> span; 42320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect* cur; 42420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianpublic: 425d31824004277f554000417cea349d69f18655e95Dan Stoza rasterizer(Region& reg) 4263ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian : bounds(INT_MAX, 0, INT_MIN, 0), storage(reg.mStorage), head(), tail(), cur() { 42720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian storage.clear(); 42820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 42920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 430d31824004277f554000417cea349d69f18655e95Dan Stoza virtual ~rasterizer(); 431d31824004277f554000417cea349d69f18655e95Dan Stoza 432d31824004277f554000417cea349d69f18655e95Dan Stoza virtual void operator()(const Rect& rect); 433d31824004277f554000417cea349d69f18655e95Dan Stoza 434d31824004277f554000417cea349d69f18655e95Dan Stozaprivate: 435d31824004277f554000417cea349d69f18655e95Dan Stoza template<typename T> 436d31824004277f554000417cea349d69f18655e95Dan Stoza static inline T min(T rhs, T lhs) { return rhs < lhs ? rhs : lhs; } 437d31824004277f554000417cea349d69f18655e95Dan Stoza template<typename T> 438d31824004277f554000417cea349d69f18655e95Dan Stoza static inline T max(T rhs, T lhs) { return rhs > lhs ? rhs : lhs; } 439d31824004277f554000417cea349d69f18655e95Dan Stoza 440d31824004277f554000417cea349d69f18655e95Dan Stoza void flushSpan(); 441d31824004277f554000417cea349d69f18655e95Dan Stoza}; 442d31824004277f554000417cea349d69f18655e95Dan Stoza 443d31824004277f554000417cea349d69f18655e95Dan StozaRegion::rasterizer::~rasterizer() 444d31824004277f554000417cea349d69f18655e95Dan Stoza{ 445d31824004277f554000417cea349d69f18655e95Dan Stoza if (span.size()) { 446d31824004277f554000417cea349d69f18655e95Dan Stoza flushSpan(); 447d31824004277f554000417cea349d69f18655e95Dan Stoza } 448d31824004277f554000417cea349d69f18655e95Dan Stoza if (storage.size()) { 449d31824004277f554000417cea349d69f18655e95Dan Stoza bounds.top = storage.itemAt(0).top; 450d31824004277f554000417cea349d69f18655e95Dan Stoza bounds.bottom = storage.top().bottom; 451d31824004277f554000417cea349d69f18655e95Dan Stoza if (storage.size() == 1) { 452d31824004277f554000417cea349d69f18655e95Dan Stoza storage.clear(); 45320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 454d31824004277f554000417cea349d69f18655e95Dan Stoza } else { 455d31824004277f554000417cea349d69f18655e95Dan Stoza bounds.left = 0; 456d31824004277f554000417cea349d69f18655e95Dan Stoza bounds.right = 0; 45720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 458d31824004277f554000417cea349d69f18655e95Dan Stoza storage.add(bounds); 459d31824004277f554000417cea349d69f18655e95Dan Stoza} 460d31824004277f554000417cea349d69f18655e95Dan Stoza 461d31824004277f554000417cea349d69f18655e95Dan Stozavoid Region::rasterizer::operator()(const Rect& rect) 462d31824004277f554000417cea349d69f18655e95Dan Stoza{ 463d31824004277f554000417cea349d69f18655e95Dan Stoza //ALOGD(">>> %3d, %3d, %3d, %3d", 464d31824004277f554000417cea349d69f18655e95Dan Stoza // rect.left, rect.top, rect.right, rect.bottom); 465d31824004277f554000417cea349d69f18655e95Dan Stoza if (span.size()) { 466d31824004277f554000417cea349d69f18655e95Dan Stoza if (cur->top != rect.top) { 467d31824004277f554000417cea349d69f18655e95Dan Stoza flushSpan(); 468d31824004277f554000417cea349d69f18655e95Dan Stoza } else if (cur->right == rect.left) { 469d31824004277f554000417cea349d69f18655e95Dan Stoza cur->right = rect.right; 470d31824004277f554000417cea349d69f18655e95Dan Stoza return; 47120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 47220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 473d31824004277f554000417cea349d69f18655e95Dan Stoza span.add(rect); 474d31824004277f554000417cea349d69f18655e95Dan Stoza cur = span.editArray() + (span.size() - 1); 475d31824004277f554000417cea349d69f18655e95Dan Stoza} 476d31824004277f554000417cea349d69f18655e95Dan Stoza 477d31824004277f554000417cea349d69f18655e95Dan Stozavoid Region::rasterizer::flushSpan() 478d31824004277f554000417cea349d69f18655e95Dan Stoza{ 479d31824004277f554000417cea349d69f18655e95Dan Stoza bool merge = false; 480d31824004277f554000417cea349d69f18655e95Dan Stoza if (tail-head == ssize_t(span.size())) { 481d31824004277f554000417cea349d69f18655e95Dan Stoza Rect const* p = span.editArray(); 482d31824004277f554000417cea349d69f18655e95Dan Stoza Rect const* q = head; 483d31824004277f554000417cea349d69f18655e95Dan Stoza if (p->top == q->bottom) { 484d31824004277f554000417cea349d69f18655e95Dan Stoza merge = true; 485d31824004277f554000417cea349d69f18655e95Dan Stoza while (q != tail) { 486d31824004277f554000417cea349d69f18655e95Dan Stoza if ((p->left != q->left) || (p->right != q->right)) { 487d31824004277f554000417cea349d69f18655e95Dan Stoza merge = false; 488d31824004277f554000417cea349d69f18655e95Dan Stoza break; 48920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 490d31824004277f554000417cea349d69f18655e95Dan Stoza p++, q++; 49120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 49220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 493d31824004277f554000417cea349d69f18655e95Dan Stoza } 494d31824004277f554000417cea349d69f18655e95Dan Stoza if (merge) { 495d31824004277f554000417cea349d69f18655e95Dan Stoza const int bottom = span[0].bottom; 496d31824004277f554000417cea349d69f18655e95Dan Stoza Rect* r = head; 497d31824004277f554000417cea349d69f18655e95Dan Stoza while (r != tail) { 498d31824004277f554000417cea349d69f18655e95Dan Stoza r->bottom = bottom; 499d31824004277f554000417cea349d69f18655e95Dan Stoza r++; 50020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 501d31824004277f554000417cea349d69f18655e95Dan Stoza } else { 502d31824004277f554000417cea349d69f18655e95Dan Stoza bounds.left = min(span.itemAt(0).left, bounds.left); 503d31824004277f554000417cea349d69f18655e95Dan Stoza bounds.right = max(span.top().right, bounds.right); 504d31824004277f554000417cea349d69f18655e95Dan Stoza storage.appendVector(span); 505d31824004277f554000417cea349d69f18655e95Dan Stoza tail = storage.editArray() + storage.size(); 506d31824004277f554000417cea349d69f18655e95Dan Stoza head = tail - span.size(); 50720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 508d31824004277f554000417cea349d69f18655e95Dan Stoza span.clear(); 509d31824004277f554000417cea349d69f18655e95Dan Stoza} 51020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 511068d47f29dfead847999a7b33b4217ee9514152bMathias Agopianbool Region::validate(const Region& reg, const char* name, bool silent) 512edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 51320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian bool result = true; 51420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const_iterator cur = reg.begin(); 51520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const_iterator const tail = reg.end(); 516068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian const_iterator prev = cur; 51720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect b(*prev); 51820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian while (cur != tail) { 519068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (cur->isValid() == false) { 520068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, "%s: region contains an invalid Rect", name); 521068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian result = false; 522068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } 523068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (cur->right > region_operator<Rect>::max_value) { 524068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, "%s: rect->right > max_value", name); 525068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian result = false; 526068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } 527068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (cur->bottom > region_operator<Rect>::max_value) { 528068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, "%s: rect->right > max_value", name); 529068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian result = false; 530068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } 531068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (prev != cur) { 532068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian b.left = b.left < cur->left ? b.left : cur->left; 533068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian b.top = b.top < cur->top ? b.top : cur->top; 534068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian b.right = b.right > cur->right ? b.right : cur->right; 535068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian b.bottom = b.bottom > cur->bottom ? b.bottom : cur->bottom; 536068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if ((*prev < *cur) == false) { 537068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, "%s: region's Rects not sorted", name); 53820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian result = false; 539068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } 540068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (cur->top == prev->top) { 541068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (cur->bottom != prev->bottom) { 542068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, "%s: invalid span %p", name, cur); 543068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian result = false; 544068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } else if (cur->left < prev->right) { 545068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, 546068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian "%s: spans overlap horizontally prev=%p, cur=%p", 547068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian name, prev, cur); 548068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian result = false; 549068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } 550068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } else if (cur->top < prev->bottom) { 551068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, 552068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian "%s: spans overlap vertically prev=%p, cur=%p", 55320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian name, prev, cur); 55420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian result = false; 55520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 556068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian prev = cur; 55720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 55820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian cur++; 55920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 56020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (b != reg.getBounds()) { 56120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian result = false; 562068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, 563068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian "%s: invalid bounds [%d,%d,%d,%d] vs. [%d,%d,%d,%d]", name, 56420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian b.left, b.top, b.right, b.bottom, 56520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian reg.getBounds().left, reg.getBounds().top, 56620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian reg.getBounds().right, reg.getBounds().bottom); 56720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 5683ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian if (reg.mStorage.size() == 2) { 569068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian result = false; 570068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, "%s: mStorage size is 2, which is never valid", name); 5713ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian } 572068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (result == false && !silent) { 57320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian reg.dump(name); 574cab25d680e644d962041d05a319e485b96136a5dMathias Agopian CallStack stack(LOG_TAG); 57520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 57620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return result; 577edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 578edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 57920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianvoid Region::boolean_operation(int op, Region& dst, 58020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const Region& lhs, 58120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const Region& rhs, int dx, int dy) 582edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 583d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian#if VALIDATE_REGIONS 584d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian validate(lhs, "boolean_operation (before): lhs"); 585d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian validate(rhs, "boolean_operation (before): rhs"); 586d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian validate(dst, "boolean_operation (before): dst"); 587d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian#endif 588d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian 58920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian size_t lhs_count; 59020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect const * const lhs_rects = lhs.getArray(&lhs_count); 59120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 59220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian size_t rhs_count; 59320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect const * const rhs_rects = rhs.getArray(&rhs_count); 59420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 59520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian region_operator<Rect>::region lhs_region(lhs_rects, lhs_count); 59620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian region_operator<Rect>::region rhs_region(rhs_rects, rhs_count, dx, dy); 59720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian region_operator<Rect> operation(op, lhs_region, rhs_region); 59820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian { // scope for rasterizer (dtor has side effects) 59920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rasterizer r(dst); 60020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian operation(r); 60120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 60220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 60320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#if VALIDATE_REGIONS 60420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian validate(lhs, "boolean_operation: lhs"); 60520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian validate(rhs, "boolean_operation: rhs"); 60620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian validate(dst, "boolean_operation: dst"); 60720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#endif 60820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 60920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#if VALIDATE_WITH_CORECG 61020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion sk_lhs; 61120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion sk_rhs; 61220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion sk_dst; 61320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 61420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian for (size_t i=0 ; i<lhs_count ; i++) 61520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian sk_lhs.op( 61620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian lhs_rects[i].left + dx, 61720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian lhs_rects[i].top + dy, 61820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian lhs_rects[i].right + dx, 61920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian lhs_rects[i].bottom + dy, 62020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion::kUnion_Op); 62120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 62220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian for (size_t i=0 ; i<rhs_count ; i++) 62320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian sk_rhs.op( 62420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rhs_rects[i].left + dx, 62520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rhs_rects[i].top + dy, 62620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rhs_rects[i].right + dx, 62720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rhs_rects[i].bottom + dy, 62820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion::kUnion_Op); 62920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 63020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const char* name = "---"; 63120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion::Op sk_op; 63220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian switch (op) { 63320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian case op_or: sk_op = SkRegion::kUnion_Op; name="OR"; break; 634b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy case op_xor: sk_op = SkRegion::kUnion_XOR; name="XOR"; break; 63520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian case op_and: sk_op = SkRegion::kIntersect_Op; name="AND"; break; 63620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian case op_nand: sk_op = SkRegion::kDifference_Op; name="NAND"; break; 63720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 63820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian sk_dst.op(sk_lhs, sk_rhs, sk_op); 63920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 64020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (sk_dst.isEmpty() && dst.isEmpty()) 64120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return; 64220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 64320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian bool same = true; 64420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Region::const_iterator head = dst.begin(); 64520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Region::const_iterator const tail = dst.end(); 64620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion::Iterator it(sk_dst); 64720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian while (!it.done()) { 64820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (head != tail) { 64920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if ( 65020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head->left != it.rect().fLeft || 65120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head->top != it.rect().fTop || 65220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head->right != it.rect().fRight || 65320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head->bottom != it.rect().fBottom 65420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian ) { 65520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian same = false; 65620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian break; 65720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 65820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } else { 65920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian same = false; 66020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian break; 66120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 66220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head++; 66320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian it.next(); 66420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 66520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 66620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (head != tail) { 66720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian same = false; 66820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 66920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 67020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if(!same) { 6719d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD("---\nregion boolean %s failed", name); 67220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian lhs.dump("lhs"); 67320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rhs.dump("rhs"); 67420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian dst.dump("dst"); 6759d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD("should be"); 67620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion::Iterator it(sk_dst); 67720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian while (!it.done()) { 6789d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD(" [%3d, %3d, %3d, %3d]", 67920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian it.rect().fLeft, 68020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian it.rect().fTop, 68120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian it.rect().fRight, 68220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian it.rect().fBottom); 68320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian it.next(); 68420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 68520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 68620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#endif 687edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 688edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 68920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianvoid Region::boolean_operation(int op, Region& dst, 69020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const Region& lhs, 69120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const Rect& rhs, int dx, int dy) 69220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian{ 6930450452e8c6ea48341d57d8bc51d56252e9806b8Mathias Agopian if (!rhs.isValid()) { 694e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block ALOGE("Region::boolean_operation(op=%d) invalid Rect={%d,%d,%d,%d}", 6950450452e8c6ea48341d57d8bc51d56252e9806b8Mathias Agopian op, rhs.left, rhs.top, rhs.right, rhs.bottom); 6960857c8f7f1905008b285a5473c906639fdd0288bMathias Agopian return; 6970450452e8c6ea48341d57d8bc51d56252e9806b8Mathias Agopian } 6980450452e8c6ea48341d57d8bc51d56252e9806b8Mathias Agopian 69920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#if VALIDATE_WITH_CORECG || VALIDATE_REGIONS 70020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, dst, lhs, Region(rhs), dx, dy); 70120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#else 70220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian size_t lhs_count; 70320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect const * const lhs_rects = lhs.getArray(&lhs_count); 70420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 70520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian region_operator<Rect>::region lhs_region(lhs_rects, lhs_count); 70620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian region_operator<Rect>::region rhs_region(&rhs, 1, dx, dy); 70720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian region_operator<Rect> operation(op, lhs_region, rhs_region); 70820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian { // scope for rasterizer (dtor has side effects) 70920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rasterizer r(dst); 71020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian operation(r); 71120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 712edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 71320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#endif 71420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 71520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 71620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianvoid Region::boolean_operation(int op, Region& dst, 71720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const Region& lhs, const Region& rhs) 71820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian{ 71920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, dst, lhs, rhs, 0, 0); 72020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 72120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 72220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianvoid Region::boolean_operation(int op, Region& dst, 72320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const Region& lhs, const Rect& rhs) 72420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian{ 72520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, dst, lhs, rhs, 0, 0); 72620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 72720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 72820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianvoid Region::translate(Region& reg, int dx, int dy) 72920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian{ 7304c0a170585d5c8a1f3508ac55f799ebaf86e91dbMathias Agopian if ((dx || dy) && !reg.isEmpty()) { 73120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#if VALIDATE_REGIONS 73220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian validate(reg, "translate (before)"); 73320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#endif 73420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian size_t count = reg.mStorage.size(); 73520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect* rects = reg.mStorage.editArray(); 73620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian while (count) { 7376c7f25afb75ac155bad0b3bc17c0089d0337d060Mathias Agopian rects->offsetBy(dx, dy); 73820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rects++; 73920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian count--; 74020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 74120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#if VALIDATE_REGIONS 74220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian validate(reg, "translate (after)"); 74320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#endif 74420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 74520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 74620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 74720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianvoid Region::translate(Region& dst, const Region& reg, int dx, int dy) 74820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian{ 74920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian dst = reg; 75020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian translate(dst, dx, dy); 75120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 75220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 75320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 754edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 755e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopiansize_t Region::getFlattenedSize() const { 7563ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian return mStorage.size() * sizeof(Rect); 757edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 758edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 759e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopianstatus_t Region::flatten(void* buffer, size_t size) const { 760068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian#if VALIDATE_REGIONS 761068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian validate(*this, "Region::flatten"); 762068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian#endif 763e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian if (size < mStorage.size() * sizeof(Rect)) { 764e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian return NO_MEMORY; 765e142428a9c8b9d2380032cd4d7b55ee440fe8770Mathias Agopian } 7668683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian Rect* rects = reinterpret_cast<Rect*>(buffer); 7678683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian memcpy(rects, mStorage.array(), mStorage.size() * sizeof(Rect)); 7688683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian return NO_ERROR; 769edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 770edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 7718683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopianstatus_t Region::unflatten(void const* buffer, size_t size) { 772068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian Region result; 7738683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian if (size >= sizeof(Rect)) { 7748683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian Rect const* rects = reinterpret_cast<Rect const*>(buffer); 7758683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian size_t count = size / sizeof(Rect); 7768683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian if (count > 0) { 777068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian result.mStorage.clear(); 778068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ssize_t err = result.mStorage.insertAt(0, count); 7798683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian if (err < 0) { 7808683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian return status_t(err); 7818683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian } 782068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian memcpy(result.mStorage.editArray(), rects, count*sizeof(Rect)); 7838683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian } 7848683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian } 7853ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian#if VALIDATE_REGIONS 786068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian validate(result, "Region::unflatten"); 7873ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian#endif 788068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian 789068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (!result.validate(result, "Region::unflatten", true)) { 790068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE("Region::unflatten() failed, invalid region"); 791068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian return BAD_VALUE; 792068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } 793068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian mStorage = result.mStorage; 7948683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian return NO_ERROR; 79520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 79620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 79720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 79820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 79920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion::const_iterator Region::begin() const { 8003ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian return mStorage.array(); 80120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 80220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 80320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion::const_iterator Region::end() const { 8043ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian size_t numRects = isRect() ? 1 : mStorage.size() - 1; 8053ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian return mStorage.array() + numRects; 80620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 80720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 80820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRect const* Region::getArray(size_t* count) const { 809d31824004277f554000417cea349d69f18655e95Dan Stoza if (count) *count = static_cast<size_t>(end() - begin()); 810d31824004277f554000417cea349d69f18655e95Dan Stoza return begin(); 811edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 812edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 8132401ead70099c982796ecc3ec63ec8a5570948fcMathias AgopianSharedBuffer const* Region::getSharedBuffer(size_t* count) const { 8142401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian // We can get to the SharedBuffer of a Vector<Rect> because Rect has 8152401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian // a trivial destructor. 8162401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian SharedBuffer const* sb = SharedBuffer::bufferFromData(mStorage.array()); 8172401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian if (count) { 8182401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian size_t numRects = isRect() ? 1 : mStorage.size() - 1; 8192401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian count[0] = numRects; 8202401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian } 8212401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian sb->acquire(); 8222401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian return sb; 8232401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian} 8242401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian 82520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 82620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 827d31824004277f554000417cea349d69f18655e95Dan Stozavoid Region::dump(String8& out, const char* what, uint32_t /* flags */) const 828edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 82920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const_iterator head = begin(); 83020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const_iterator const tail = end(); 83120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 832d31824004277f554000417cea349d69f18655e95Dan Stoza out.appendFormat(" Region %s (this=%p, count=%" PRIdPTR ")\n", 833d31824004277f554000417cea349d69f18655e95Dan Stoza what, this, tail - head); 83420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian while (head != tail) { 835d31824004277f554000417cea349d69f18655e95Dan Stoza out.appendFormat(" [%3d, %3d, %3d, %3d]\n", head->left, head->top, 836d31824004277f554000417cea349d69f18655e95Dan Stoza head->right, head->bottom); 837d31824004277f554000417cea349d69f18655e95Dan Stoza ++head; 838edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 839edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 840edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 841d31824004277f554000417cea349d69f18655e95Dan Stozavoid Region::dump(const char* what, uint32_t /* flags */) const 842edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 84320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const_iterator head = begin(); 84420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const_iterator const tail = end(); 84592dc3fc52cf097bd105460cf377779bdcf146d62Mark Salyzyn ALOGD(" Region %s (this=%p, count=%" PRIdPTR ")\n", what, this, tail-head); 84620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian while (head != tail) { 8479d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD(" [%3d, %3d, %3d, %3d]\n", 84820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head->left, head->top, head->right, head->bottom); 84920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head++; 850edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 851edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 852edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 853edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// ---------------------------------------------------------------------------- 854edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 855edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project}; // namespace android 856