Region.cpp revision 6c7f25afb75ac155bad0b3bc17c0089d0337d060
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 1972b0ffe4c3776b33844bb00b9be5693bddd391f9Mathias Agopian#include <limits.h> 2072b0ffe4c3776b33844bb00b9be5693bddd391f9Mathias Agopian 2120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#include <utils/Log.h> 22edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <utils/String8.h> 23068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian#include <utils/CallStack.h> 2420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 2520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#include <ui/Rect.h> 26edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project#include <ui/Region.h> 2720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#include <ui/Point.h> 2820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 2920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#include <private/ui/RegionHelper.h> 3020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 3120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 3220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#define VALIDATE_REGIONS (false) 3320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#define VALIDATE_WITH_CORECG (false) 3420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 3520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 3620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#if VALIDATE_WITH_CORECG 3720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#include <core/SkRegion.h> 3820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#endif 39edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 40edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectnamespace android { 4120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 4220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 4320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianenum { 4420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian op_nand = region_operator<Rect>::op_nand, 4520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian op_and = region_operator<Rect>::op_and, 4620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian op_or = region_operator<Rect>::op_or, 4720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian op_xor = region_operator<Rect>::op_xor 4820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian}; 49edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 503e010f3138593cc6953039ee0e3db8ee31881296Chris Craikenum { 513e010f3138593cc6953039ee0e3db8ee31881296Chris Craik direction_LTR, 523e010f3138593cc6953039ee0e3db8ee31881296Chris Craik direction_RTL 533e010f3138593cc6953039ee0e3db8ee31881296Chris Craik}; 543e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 55edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// ---------------------------------------------------------------------------- 56edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 573ab68558fa5a4b8f792a54965a010f03385bd271Mathias AgopianRegion::Region() { 583ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.add(Rect(0,0)); 59edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 60edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 61edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion::Region(const Region& rhs) 623ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian : mStorage(rhs.mStorage) 63edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 64d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian#if VALIDATE_REGIONS 65d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian validate(rhs, "rhs copy-ctor"); 66d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian#endif 67edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 68edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 693ab68558fa5a4b8f792a54965a010f03385bd271Mathias AgopianRegion::Region(const Rect& rhs) { 703ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.add(rhs); 71edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 72edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 7320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion::~Region() 74edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 75edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 76edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 773e010f3138593cc6953039ee0e3db8ee31881296Chris Craik/** 783e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * Copy rects from the src vector into the dst vector, resolving vertical T-Junctions along the way 793e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * 803e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * First pass through, divideSpanRTL will be set because the 'previous span' (indexing into the dst 813e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * vector) will be reversed. Each rectangle in the original list, starting from the bottom, will be 823e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * compared with the span directly below, and subdivided as needed to resolve T-junctions. 833e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * 843e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * The resulting temporary vector will be a completely reversed copy of the original, without any 853e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * bottom-up T-junctions. 863e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * 873e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * Second pass through, divideSpanRTL will be false since the previous span will index into the 883e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * final, correctly ordered region buffer. Each rectangle will be compared with the span directly 893e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * above it, and subdivided to resolve any remaining T-junctions. 903e010f3138593cc6953039ee0e3db8ee31881296Chris Craik */ 913e010f3138593cc6953039ee0e3db8ee31881296Chris Craikstatic void reverseRectsResolvingJunctions(const Rect* begin, const Rect* end, 923e010f3138593cc6953039ee0e3db8ee31881296Chris Craik Vector<Rect>& dst, int spanDirection) { 933e010f3138593cc6953039ee0e3db8ee31881296Chris Craik dst.clear(); 943e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 953e010f3138593cc6953039ee0e3db8ee31881296Chris Craik const Rect* current = end - 1; 963e010f3138593cc6953039ee0e3db8ee31881296Chris Craik int lastTop = current->top; 973e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 983e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // add first span immediately 993e010f3138593cc6953039ee0e3db8ee31881296Chris Craik do { 1003e010f3138593cc6953039ee0e3db8ee31881296Chris Craik dst.add(*current); 1013e010f3138593cc6953039ee0e3db8ee31881296Chris Craik current--; 1023e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } while (current->top == lastTop && current >= begin); 1033e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1043e010f3138593cc6953039ee0e3db8ee31881296Chris Craik unsigned int beginLastSpan = -1; 1053e010f3138593cc6953039ee0e3db8ee31881296Chris Craik unsigned int endLastSpan = -1; 1063e010f3138593cc6953039ee0e3db8ee31881296Chris Craik int top = -1; 1073e010f3138593cc6953039ee0e3db8ee31881296Chris Craik int bottom = -1; 1083e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1093e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // for all other spans, split if a t-junction exists in the span directly above 1103e010f3138593cc6953039ee0e3db8ee31881296Chris Craik while (current >= begin) { 1113e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (current->top != (current + 1)->top) { 1123e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // new span 1133e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if ((spanDirection == direction_RTL && current->bottom != (current + 1)->top) || 1143e010f3138593cc6953039ee0e3db8ee31881296Chris Craik (spanDirection == direction_LTR && current->top != (current + 1)->bottom)) { 1153e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // previous span not directly adjacent, don't check for T junctions 1163e010f3138593cc6953039ee0e3db8ee31881296Chris Craik beginLastSpan = INT_MAX; 1173e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } else { 1183e010f3138593cc6953039ee0e3db8ee31881296Chris Craik beginLastSpan = endLastSpan + 1; 1193e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1203e010f3138593cc6953039ee0e3db8ee31881296Chris Craik endLastSpan = dst.size() - 1; 1213e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1223e010f3138593cc6953039ee0e3db8ee31881296Chris Craik top = current->top; 1233e010f3138593cc6953039ee0e3db8ee31881296Chris Craik bottom = current->bottom; 1243e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1253e010f3138593cc6953039ee0e3db8ee31881296Chris Craik int left = current->left; 1263e010f3138593cc6953039ee0e3db8ee31881296Chris Craik int right = current->right; 1273e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1283e010f3138593cc6953039ee0e3db8ee31881296Chris Craik for (unsigned int prevIndex = beginLastSpan; prevIndex <= endLastSpan; prevIndex++) { 1293e010f3138593cc6953039ee0e3db8ee31881296Chris Craik const Rect* prev = &dst[prevIndex]; 1303e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (spanDirection == direction_RTL) { 1313e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // iterating over previous span RTL, quit if it's too far left 1323e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (prev->right <= left) break; 1333e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1343e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (prev->right > left && prev->right < right) { 1353e010f3138593cc6953039ee0e3db8ee31881296Chris Craik dst.add(Rect(prev->right, top, right, bottom)); 1363e010f3138593cc6953039ee0e3db8ee31881296Chris Craik right = prev->right; 1373e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1383e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1393e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (prev->left > left && prev->left < right) { 1403e010f3138593cc6953039ee0e3db8ee31881296Chris Craik dst.add(Rect(prev->left, top, right, bottom)); 1413e010f3138593cc6953039ee0e3db8ee31881296Chris Craik right = prev->left; 1423e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1433e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1443e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // if an entry in the previous span is too far right, nothing further left in the 1453e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // current span will need it 1463e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (prev->left >= right) { 1473e010f3138593cc6953039ee0e3db8ee31881296Chris Craik beginLastSpan = prevIndex; 1483e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1493e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } else { 1503e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // iterating over previous span LTR, quit if it's too far right 1513e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (prev->left >= right) break; 1523e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1533e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (prev->left > left && prev->left < right) { 1543e010f3138593cc6953039ee0e3db8ee31881296Chris Craik dst.add(Rect(left, top, prev->left, bottom)); 1553e010f3138593cc6953039ee0e3db8ee31881296Chris Craik left = prev->left; 1563e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1573e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1583e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (prev->right > left && prev->right < right) { 1593e010f3138593cc6953039ee0e3db8ee31881296Chris Craik dst.add(Rect(left, top, prev->right, bottom)); 1603e010f3138593cc6953039ee0e3db8ee31881296Chris Craik left = prev->right; 1613e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1623e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // if an entry in the previous span is too far left, nothing further right in the 1633e010f3138593cc6953039ee0e3db8ee31881296Chris Craik // current span will need it 1643e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (prev->right <= left) { 1653e010f3138593cc6953039ee0e3db8ee31881296Chris Craik beginLastSpan = prevIndex; 1663e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1673e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1683e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1693e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1703e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (left < right) { 1713e010f3138593cc6953039ee0e3db8ee31881296Chris Craik dst.add(Rect(left, top, right, bottom)); 1723e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1733e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1743e010f3138593cc6953039ee0e3db8ee31881296Chris Craik current--; 1753e010f3138593cc6953039ee0e3db8ee31881296Chris Craik } 1763e010f3138593cc6953039ee0e3db8ee31881296Chris Craik} 1773e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1783e010f3138593cc6953039ee0e3db8ee31881296Chris Craik/** 1793e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * Creates a new region with the same data as the argument, but divides rectangles as necessary to 1803e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * remove T-Junctions 1813e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * 1823e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * Note: the output will not necessarily be a very efficient representation of the region, since it 1833e010f3138593cc6953039ee0e3db8ee31881296Chris Craik * may be that a triangle-based approach would generate significantly simpler geometry 1843e010f3138593cc6953039ee0e3db8ee31881296Chris Craik */ 1853e010f3138593cc6953039ee0e3db8ee31881296Chris CraikRegion Region::createTJunctionFreeRegion(const Region& r) { 1863e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (r.isEmpty()) return r; 1873e010f3138593cc6953039ee0e3db8ee31881296Chris Craik if (r.isRect()) return r; 1883e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1893e010f3138593cc6953039ee0e3db8ee31881296Chris Craik Vector<Rect> reversed; 1903e010f3138593cc6953039ee0e3db8ee31881296Chris Craik reverseRectsResolvingJunctions(r.begin(), r.end(), reversed, direction_RTL); 1913e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1923e010f3138593cc6953039ee0e3db8ee31881296Chris Craik Region outputRegion; 1933e010f3138593cc6953039ee0e3db8ee31881296Chris Craik reverseRectsResolvingJunctions(reversed.begin(), reversed.end(), 1943e010f3138593cc6953039ee0e3db8ee31881296Chris Craik outputRegion.mStorage, direction_LTR); 1953e010f3138593cc6953039ee0e3db8ee31881296Chris Craik outputRegion.mStorage.add(r.getBounds()); // to make region valid, mStorage must end with bounds 1963e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 1973e010f3138593cc6953039ee0e3db8ee31881296Chris Craik#if VALIDATE_REGIONS 1983e010f3138593cc6953039ee0e3db8ee31881296Chris Craik validate(outputRegion, "T-Junction free region"); 1993e010f3138593cc6953039ee0e3db8ee31881296Chris Craik#endif 2003e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 2013e010f3138593cc6953039ee0e3db8ee31881296Chris Craik return outputRegion; 2023e010f3138593cc6953039ee0e3db8ee31881296Chris Craik} 2033e010f3138593cc6953039ee0e3db8ee31881296Chris Craik 20420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion& Region::operator = (const Region& rhs) 205edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 20620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#if VALIDATE_REGIONS 207d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian validate(*this, "this->operator="); 208d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian validate(rhs, "rhs.operator="); 20920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#endif 21020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian mStorage = rhs.mStorage; 21120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return *this; 212edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 213edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 2149f96145725ff3f265712d607d19078fb91a5c8ecMathias AgopianRegion& Region::makeBoundsSelf() 2159f96145725ff3f265712d607d19078fb91a5c8ecMathias Agopian{ 2163ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian if (mStorage.size() >= 2) { 2173ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian const Rect bounds(getBounds()); 2183ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.clear(); 2193ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.add(bounds); 2203ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian } 2219f96145725ff3f265712d607d19078fb91a5c8ecMathias Agopian return *this; 2229f96145725ff3f265712d607d19078fb91a5c8ecMathias Agopian} 2239f96145725ff3f265712d607d19078fb91a5c8ecMathias Agopian 224edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid Region::clear() 225edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 22620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian mStorage.clear(); 2273ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.add(Rect(0,0)); 228edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 229edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 230edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid Region::set(const Rect& r) 231edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 23220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian mStorage.clear(); 2333ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.add(r); 234edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 235edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 2360926f50664c739eaee60341f8e8c694dc9a4f3ebMathias Agopianvoid Region::set(uint32_t w, uint32_t h) 2370926f50664c739eaee60341f8e8c694dc9a4f3ebMathias Agopian{ 23820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian mStorage.clear(); 2393ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.add(Rect(w,h)); 2400926f50664c739eaee60341f8e8c694dc9a4f3ebMathias Agopian} 2410926f50664c739eaee60341f8e8c694dc9a4f3ebMathias Agopian 2422ca79399b933935eb1b6c0ec1f746f8c4475369cMathias Agopianbool Region::isTriviallyEqual(const Region& region) const { 2432ca79399b933935eb1b6c0ec1f746f8c4475369cMathias Agopian return begin() == region.begin(); 2442ca79399b933935eb1b6c0ec1f746f8c4475369cMathias Agopian} 2452ca79399b933935eb1b6c0ec1f746f8c4475369cMathias Agopian 246edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// ---------------------------------------------------------------------------- 247edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 24820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianvoid Region::addRectUnchecked(int l, int t, int r, int b) 249edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 2503ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian Rect rect(l,t,r,b); 2513ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian size_t where = mStorage.size() - 1; 2523ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian mStorage.insertAt(rect, where, 1); 253edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 254edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 25520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 25620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 25720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion& Region::orSelf(const Rect& r) { 25820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(r, op_or); 25920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 260b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain GuyRegion& Region::xorSelf(const Rect& r) { 261b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy return operationSelf(r, op_xor); 262b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy} 26320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion& Region::andSelf(const Rect& r) { 26420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(r, op_and); 26520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 26620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion& Region::subtractSelf(const Rect& r) { 26720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(r, op_nand); 26820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 26920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion& Region::operationSelf(const Rect& r, int op) { 27020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Region lhs(*this); 27120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, *this, lhs, r); 272edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return *this; 273edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 274edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 275edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// ---------------------------------------------------------------------------- 276edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 277edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion& Region::orSelf(const Region& rhs) { 27820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(rhs, op_or); 279edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 280b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain GuyRegion& Region::xorSelf(const Region& rhs) { 281b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy return operationSelf(rhs, op_xor); 282b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy} 283edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion& Region::andSelf(const Region& rhs) { 28420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(rhs, op_and); 285edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 286edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion& Region::subtractSelf(const Region& rhs) { 28720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(rhs, op_nand); 28820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 28920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion& Region::operationSelf(const Region& rhs, int op) { 29020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Region lhs(*this); 29120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, *this, lhs, rhs); 292edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return *this; 293edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 294edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 295edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion& Region::translateSelf(int x, int y) { 29620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (x|y) translate(*this, x, y); 297edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return *this; 298edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 299edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 30020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 30120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 302bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::merge(const Rect& rhs) const { 30320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, op_or); 30420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 305b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guyconst Region Region::mergeExclusive(const Rect& rhs) const { 306b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy return operation(rhs, op_xor); 307b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy} 308bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::intersect(const Rect& rhs) const { 30920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, op_and); 31020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 311bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::subtract(const Rect& rhs) const { 31220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, op_nand); 31320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 314bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::operation(const Rect& rhs, int op) const { 315edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Region result; 31620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, result, *this, rhs); 317edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return result; 318edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 319edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 32020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 32120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 322bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::merge(const Region& rhs) const { 32320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, op_or); 32420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 325b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guyconst Region Region::mergeExclusive(const Region& rhs) const { 326b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy return operation(rhs, op_xor); 327b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy} 328bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::intersect(const Region& rhs) const { 32920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, op_and); 330edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 331bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::subtract(const Region& rhs) const { 33220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, op_nand); 33320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 334bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::operation(const Region& rhs, int op) const { 335edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Region result; 33620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, result, *this, rhs); 337edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return result; 338edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 339edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 340bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::translate(int x, int y) const { 341edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Region result; 34220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian translate(result, *this, x, y); 343edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return result; 344edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 345edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 346edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// ---------------------------------------------------------------------------- 347edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 348edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion& Region::orSelf(const Region& rhs, int dx, int dy) { 34920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(rhs, dx, dy, op_or); 350edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 351b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain GuyRegion& Region::xorSelf(const Region& rhs, int dx, int dy) { 352b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy return operationSelf(rhs, dx, dy, op_xor); 353b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy} 354edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion& Region::andSelf(const Region& rhs, int dx, int dy) { 35520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(rhs, dx, dy, op_and); 356edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 357edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source ProjectRegion& Region::subtractSelf(const Region& rhs, int dx, int dy) { 35820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operationSelf(rhs, dx, dy, op_nand); 35920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 36020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion& Region::operationSelf(const Region& rhs, int dx, int dy, int op) { 36120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Region lhs(*this); 36220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, *this, lhs, rhs, dx, dy); 363edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return *this; 364edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 365edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 36620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 36720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 368bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::merge(const Region& rhs, int dx, int dy) const { 36920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, dx, dy, op_or); 370edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 371b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guyconst Region Region::mergeExclusive(const Region& rhs, int dx, int dy) const { 372b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy return operation(rhs, dx, dy, op_xor); 373b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy} 374bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::intersect(const Region& rhs, int dx, int dy) const { 37520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, dx, dy, op_and); 376edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 377bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::subtract(const Region& rhs, int dx, int dy) const { 37820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return operation(rhs, dx, dy, op_nand); 37920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 380bed9dd128dfbdc7d9dbca005078536dadc0b9359Mathias Agopianconst Region Region::operation(const Region& rhs, int dx, int dy, int op) const { 381edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project Region result; 38220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, result, *this, rhs, dx, dy); 383edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project return result; 384edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 385edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 386edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// ---------------------------------------------------------------------------- 387edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 38820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// This is our region rasterizer, which merges rects and spans together 38920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// to obtain an optimal region. 39020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianclass Region::rasterizer : public region_operator<Rect>::region_rasterizer 39120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian{ 3923ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian Rect bounds; 39320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Vector<Rect>& storage; 39420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect* head; 39520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect* tail; 39620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Vector<Rect> span; 39720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect* cur; 39820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianpublic: 39920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rasterizer(Region& reg) 4003ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian : bounds(INT_MAX, 0, INT_MIN, 0), storage(reg.mStorage), head(), tail(), cur() { 40120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian storage.clear(); 40220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 40320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 40420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian ~rasterizer() { 40520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (span.size()) { 40620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian flushSpan(); 40720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 40820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (storage.size()) { 40920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian bounds.top = storage.itemAt(0).top; 41020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian bounds.bottom = storage.top().bottom; 41120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (storage.size() == 1) { 41220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian storage.clear(); 41320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 41420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } else { 41520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian bounds.left = 0; 41620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian bounds.right = 0; 41720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 4183ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian storage.add(bounds); 41920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 42020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 42120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian virtual void operator()(const Rect& rect) { 4229d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block //ALOGD(">>> %3d, %3d, %3d, %3d", 42320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian // rect.left, rect.top, rect.right, rect.bottom); 42420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (span.size()) { 42520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (cur->top != rect.top) { 42620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian flushSpan(); 42720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } else if (cur->right == rect.left) { 42820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian cur->right = rect.right; 42920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return; 43020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 43120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 43220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian span.add(rect); 43320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian cur = span.editArray() + (span.size() - 1); 43420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 43520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianprivate: 43620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian template<typename T> 43720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian static inline T min(T rhs, T lhs) { return rhs < lhs ? rhs : lhs; } 43820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian template<typename T> 43920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian static inline T max(T rhs, T lhs) { return rhs > lhs ? rhs : lhs; } 44020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian void flushSpan() { 44120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian bool merge = false; 44220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (tail-head == ssize_t(span.size())) { 443b801624dc4f03c930ec35f406f07fa5fd8f65dd9Romain Guy Rect const* p = span.editArray(); 44420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect const* q = head; 44520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (p->top == q->bottom) { 44620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian merge = true; 44720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian while (q != tail) { 44820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if ((p->left != q->left) || (p->right != q->right)) { 44920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian merge = false; 45020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian break; 45120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 45220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian p++, q++; 45320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 45420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 45520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 45620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (merge) { 45720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const int bottom = span[0].bottom; 45820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect* r = head; 45920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian while (r != tail) { 46020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian r->bottom = bottom; 46120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian r++; 46220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 46320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } else { 46420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian bounds.left = min(span.itemAt(0).left, bounds.left); 46520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian bounds.right = max(span.top().right, bounds.right); 46620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian storage.appendVector(span); 46720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian tail = storage.editArray() + storage.size(); 46820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head = tail - span.size(); 46920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 47020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian span.clear(); 47120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 47220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian}; 47320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 474068d47f29dfead847999a7b33b4217ee9514152bMathias Agopianbool Region::validate(const Region& reg, const char* name, bool silent) 475edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 47620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian bool result = true; 47720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const_iterator cur = reg.begin(); 47820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const_iterator const tail = reg.end(); 479068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian const_iterator prev = cur; 48020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect b(*prev); 48120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian while (cur != tail) { 482068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (cur->isValid() == false) { 483068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, "%s: region contains an invalid Rect", name); 484068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian result = false; 485068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } 486068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (cur->right > region_operator<Rect>::max_value) { 487068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, "%s: rect->right > max_value", name); 488068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian result = false; 489068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } 490068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (cur->bottom > region_operator<Rect>::max_value) { 491068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, "%s: rect->right > max_value", name); 492068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian result = false; 493068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } 494068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (prev != cur) { 495068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian b.left = b.left < cur->left ? b.left : cur->left; 496068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian b.top = b.top < cur->top ? b.top : cur->top; 497068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian b.right = b.right > cur->right ? b.right : cur->right; 498068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian b.bottom = b.bottom > cur->bottom ? b.bottom : cur->bottom; 499068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if ((*prev < *cur) == false) { 500068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, "%s: region's Rects not sorted", name); 50120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian result = false; 502068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } 503068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (cur->top == prev->top) { 504068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (cur->bottom != prev->bottom) { 505068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, "%s: invalid span %p", name, cur); 506068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian result = false; 507068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } else if (cur->left < prev->right) { 508068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, 509068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian "%s: spans overlap horizontally prev=%p, cur=%p", 510068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian name, prev, cur); 511068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian result = false; 512068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } 513068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } else if (cur->top < prev->bottom) { 514068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, 515068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian "%s: spans overlap vertically prev=%p, cur=%p", 51620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian name, prev, cur); 51720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian result = false; 51820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 519068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian prev = cur; 52020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 52120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian cur++; 52220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 52320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (b != reg.getBounds()) { 52420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian result = false; 525068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, 526068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian "%s: invalid bounds [%d,%d,%d,%d] vs. [%d,%d,%d,%d]", name, 52720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian b.left, b.top, b.right, b.bottom, 52820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian reg.getBounds().left, reg.getBounds().top, 52920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian reg.getBounds().right, reg.getBounds().bottom); 53020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 5313ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian if (reg.mStorage.size() == 2) { 532068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian result = false; 533068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE_IF(!silent, "%s: mStorage size is 2, which is never valid", name); 5343ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian } 535068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (result == false && !silent) { 53620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian reg.dump(name); 537cab25d680e644d962041d05a319e485b96136a5dMathias Agopian CallStack stack(LOG_TAG); 53820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 53920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return result; 540edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 541edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 54220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianvoid Region::boolean_operation(int op, Region& dst, 54320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const Region& lhs, 54420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const Region& rhs, int dx, int dy) 545edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 546d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian#if VALIDATE_REGIONS 547d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian validate(lhs, "boolean_operation (before): lhs"); 548d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian validate(rhs, "boolean_operation (before): rhs"); 549d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian validate(dst, "boolean_operation (before): dst"); 550d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian#endif 551d0b55c011a311b677493ba72804bf1bc4df68224Mathias Agopian 55220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian size_t lhs_count; 55320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect const * const lhs_rects = lhs.getArray(&lhs_count); 55420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 55520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian size_t rhs_count; 55620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect const * const rhs_rects = rhs.getArray(&rhs_count); 55720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 55820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian region_operator<Rect>::region lhs_region(lhs_rects, lhs_count); 55920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian region_operator<Rect>::region rhs_region(rhs_rects, rhs_count, dx, dy); 56020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian region_operator<Rect> operation(op, lhs_region, rhs_region); 56120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian { // scope for rasterizer (dtor has side effects) 56220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rasterizer r(dst); 56320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian operation(r); 56420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 56520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 56620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#if VALIDATE_REGIONS 56720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian validate(lhs, "boolean_operation: lhs"); 56820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian validate(rhs, "boolean_operation: rhs"); 56920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian validate(dst, "boolean_operation: dst"); 57020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#endif 57120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 57220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#if VALIDATE_WITH_CORECG 57320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion sk_lhs; 57420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion sk_rhs; 57520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion sk_dst; 57620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 57720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian for (size_t i=0 ; i<lhs_count ; i++) 57820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian sk_lhs.op( 57920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian lhs_rects[i].left + dx, 58020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian lhs_rects[i].top + dy, 58120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian lhs_rects[i].right + dx, 58220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian lhs_rects[i].bottom + dy, 58320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion::kUnion_Op); 58420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 58520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian for (size_t i=0 ; i<rhs_count ; i++) 58620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian sk_rhs.op( 58720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rhs_rects[i].left + dx, 58820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rhs_rects[i].top + dy, 58920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rhs_rects[i].right + dx, 59020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rhs_rects[i].bottom + dy, 59120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion::kUnion_Op); 59220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 59320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const char* name = "---"; 59420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion::Op sk_op; 59520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian switch (op) { 59620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian case op_or: sk_op = SkRegion::kUnion_Op; name="OR"; break; 597b8a2e98cd7edbe7513543670c94f6b5efa74462fRomain Guy case op_xor: sk_op = SkRegion::kUnion_XOR; name="XOR"; break; 59820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian case op_and: sk_op = SkRegion::kIntersect_Op; name="AND"; break; 59920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian case op_nand: sk_op = SkRegion::kDifference_Op; name="NAND"; break; 60020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 60120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian sk_dst.op(sk_lhs, sk_rhs, sk_op); 60220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 60320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (sk_dst.isEmpty() && dst.isEmpty()) 60420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return; 60520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 60620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian bool same = true; 60720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Region::const_iterator head = dst.begin(); 60820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Region::const_iterator const tail = dst.end(); 60920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion::Iterator it(sk_dst); 61020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian while (!it.done()) { 61120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (head != tail) { 61220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if ( 61320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head->left != it.rect().fLeft || 61420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head->top != it.rect().fTop || 61520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head->right != it.rect().fRight || 61620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head->bottom != it.rect().fBottom 61720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian ) { 61820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian same = false; 61920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian break; 62020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 62120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } else { 62220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian same = false; 62320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian break; 62420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 62520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head++; 62620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian it.next(); 62720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 62820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 62920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (head != tail) { 63020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian same = false; 63120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 63220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 63320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if(!same) { 6349d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD("---\nregion boolean %s failed", name); 63520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian lhs.dump("lhs"); 63620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rhs.dump("rhs"); 63720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian dst.dump("dst"); 6389d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD("should be"); 63920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian SkRegion::Iterator it(sk_dst); 64020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian while (!it.done()) { 6419d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD(" [%3d, %3d, %3d, %3d]", 64220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian it.rect().fLeft, 64320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian it.rect().fTop, 64420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian it.rect().fRight, 64520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian it.rect().fBottom); 64620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian it.next(); 64720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 64820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 64920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#endif 650edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 651edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 65220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianvoid Region::boolean_operation(int op, Region& dst, 65320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const Region& lhs, 65420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const Rect& rhs, int dx, int dy) 65520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian{ 6560450452e8c6ea48341d57d8bc51d56252e9806b8Mathias Agopian if (!rhs.isValid()) { 657e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block ALOGE("Region::boolean_operation(op=%d) invalid Rect={%d,%d,%d,%d}", 6580450452e8c6ea48341d57d8bc51d56252e9806b8Mathias Agopian op, rhs.left, rhs.top, rhs.right, rhs.bottom); 6590857c8f7f1905008b285a5473c906639fdd0288bMathias Agopian return; 6600450452e8c6ea48341d57d8bc51d56252e9806b8Mathias Agopian } 6610450452e8c6ea48341d57d8bc51d56252e9806b8Mathias Agopian 66220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#if VALIDATE_WITH_CORECG || VALIDATE_REGIONS 66320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, dst, lhs, Region(rhs), dx, dy); 66420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#else 66520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian size_t lhs_count; 66620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect const * const lhs_rects = lhs.getArray(&lhs_count); 66720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 66820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian region_operator<Rect>::region lhs_region(lhs_rects, lhs_count); 66920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian region_operator<Rect>::region rhs_region(&rhs, 1, dx, dy); 67020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian region_operator<Rect> operation(op, lhs_region, rhs_region); 67120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian { // scope for rasterizer (dtor has side effects) 67220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rasterizer r(dst); 67320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian operation(r); 67420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 675edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 67620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#endif 67720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 67820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 67920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianvoid Region::boolean_operation(int op, Region& dst, 68020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const Region& lhs, const Region& rhs) 68120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian{ 68220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, dst, lhs, rhs, 0, 0); 68320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 68420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 68520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianvoid Region::boolean_operation(int op, Region& dst, 68620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const Region& lhs, const Rect& rhs) 68720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian{ 68820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian boolean_operation(op, dst, lhs, rhs, 0, 0); 68920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 69020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 69120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianvoid Region::translate(Region& reg, int dx, int dy) 69220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian{ 6934c0a170585d5c8a1f3508ac55f799ebaf86e91dbMathias Agopian if ((dx || dy) && !reg.isEmpty()) { 69420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#if VALIDATE_REGIONS 69520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian validate(reg, "translate (before)"); 69620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#endif 69720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian size_t count = reg.mStorage.size(); 69820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian Rect* rects = reg.mStorage.editArray(); 69920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian while (count) { 7006c7f25afb75ac155bad0b3bc17c0089d0337d060Mathias Agopian rects->offsetBy(dx, dy); 70120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian rects++; 70220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian count--; 70320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 70420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#if VALIDATE_REGIONS 70520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian validate(reg, "translate (after)"); 70620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian#endif 70720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian } 70820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 70920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 71020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopianvoid Region::translate(Region& dst, const Region& reg, int dx, int dy) 71120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian{ 71220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian dst = reg; 71320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian translate(dst, dx, dy); 71420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 71520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 71620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 717edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 7188683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopiansize_t Region::getSize() const { 7193ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian return mStorage.size() * sizeof(Rect); 720edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 721edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 7228683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopianstatus_t Region::flatten(void* buffer) const { 723068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian#if VALIDATE_REGIONS 724068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian validate(*this, "Region::flatten"); 725068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian#endif 7268683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian Rect* rects = reinterpret_cast<Rect*>(buffer); 7278683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian memcpy(rects, mStorage.array(), mStorage.size() * sizeof(Rect)); 7288683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian return NO_ERROR; 729edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 730edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 7318683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopianstatus_t Region::unflatten(void const* buffer, size_t size) { 732068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian Region result; 7338683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian if (size >= sizeof(Rect)) { 7348683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian Rect const* rects = reinterpret_cast<Rect const*>(buffer); 7358683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian size_t count = size / sizeof(Rect); 7368683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian if (count > 0) { 737068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian result.mStorage.clear(); 738068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ssize_t err = result.mStorage.insertAt(0, count); 7398683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian if (err < 0) { 7408683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian return status_t(err); 7418683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian } 742068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian memcpy(result.mStorage.editArray(), rects, count*sizeof(Rect)); 7438683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian } 7448683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian } 7453ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian#if VALIDATE_REGIONS 746068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian validate(result, "Region::unflatten"); 7473ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian#endif 748068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian 749068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian if (!result.validate(result, "Region::unflatten", true)) { 750068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian ALOGE("Region::unflatten() failed, invalid region"); 751068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian return BAD_VALUE; 752068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian } 753068d47f29dfead847999a7b33b4217ee9514152bMathias Agopian mStorage = result.mStorage; 7548683fca395d01734ec7946e9f0595ec5d7b754c6Mathias Agopian return NO_ERROR; 75520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 75620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 75720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 75820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 75920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion::const_iterator Region::begin() const { 7603ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian return mStorage.array(); 76120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 76220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 76320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRegion::const_iterator Region::end() const { 7643ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian size_t numRects = isRect() ? 1 : mStorage.size() - 1; 7653ab68558fa5a4b8f792a54965a010f03385bd271Mathias Agopian return mStorage.array() + numRects; 76620f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian} 76720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 76820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias AgopianRect const* Region::getArray(size_t* count) const { 76920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const_iterator const b(begin()); 77020f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const_iterator const e(end()); 77120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian if (count) *count = e-b; 77220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian return b; 773edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 774edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 7752401ead70099c982796ecc3ec63ec8a5570948fcMathias AgopianSharedBuffer const* Region::getSharedBuffer(size_t* count) const { 7762401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian // We can get to the SharedBuffer of a Vector<Rect> because Rect has 7772401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian // a trivial destructor. 7782401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian SharedBuffer const* sb = SharedBuffer::bufferFromData(mStorage.array()); 7792401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian if (count) { 7802401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian size_t numRects = isRect() ? 1 : mStorage.size() - 1; 7812401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian count[0] = numRects; 7822401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian } 7832401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian sb->acquire(); 7842401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian return sb; 7852401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian} 7862401ead70099c982796ecc3ec63ec8a5570948fcMathias Agopian 78720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian// ---------------------------------------------------------------------------- 78820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 789edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid Region::dump(String8& out, const char* what, uint32_t flags) const 790edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 791edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project (void)flags; 79220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const_iterator head = begin(); 79320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const_iterator const tail = end(); 79420f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 795edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project size_t SIZE = 256; 796edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project char buffer[SIZE]; 79720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian 79820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian snprintf(buffer, SIZE, " Region %s (this=%p, count=%d)\n", 79920f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian what, this, tail-head); 800edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out.append(buffer); 80120f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian while (head != tail) { 802edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project snprintf(buffer, SIZE, " [%3d, %3d, %3d, %3d]\n", 80320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head->left, head->top, head->right, head->bottom); 804edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project out.append(buffer); 80520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head++; 806edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 807edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 808edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 809edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Projectvoid Region::dump(const char* what, uint32_t flags) const 810edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project{ 811edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project (void)flags; 81220f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const_iterator head = begin(); 81320f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian const_iterator const tail = end(); 8149d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD(" Region %s (this=%p, count=%d)\n", what, this, tail-head); 81520f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian while (head != tail) { 8169d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD(" [%3d, %3d, %3d, %3d]\n", 81720f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head->left, head->top, head->right, head->bottom); 81820f68782a4ea71c6a977d7f87d8288d3daa265ecMathias Agopian head++; 819edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project } 820edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project} 821edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 822edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project// ---------------------------------------------------------------------------- 823edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project 824edbf3b6af777b721cd2a1ef461947e51e88241e1The Android Open Source Project}; // namespace android 825