1bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy/* 2bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy * Copyright (C) 2010 The Android Open Source Project 3bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy * 4bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy * Licensed under the Apache License, Version 2.0 (the "License"); 5bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy * you may not use this file except in compliance with the License. 6bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy * You may obtain a copy of the License at 7bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy * 8bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy * http://www.apache.org/licenses/LICENSE-2.0 9bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy * 10bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy * Unless required by applicable law or agreed to in writing, software 11bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy * distributed under the License is distributed on an "AS IS" BASIS, 12bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy * See the License for the specific language governing permissions and 14bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy * limitations under the License. 15bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy */ 16bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 1791eff22b5d7f8fe551bae01331948858ce932a96Chris Craik#pragma once 185b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 1991eff22b5d7f8fe551bae01331948858ce932a96Chris Craik#include "Vertex.h" 20bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 215cbbce535744b89df5ecea95de21ee3733298260Romain Guy#include <utils/Log.h> 225cbbce535744b89df5ecea95de21ee3733298260Romain Guy 2391eff22b5d7f8fe551bae01331948858ce932a96Chris Craik#include <algorithm> 2491eff22b5d7f8fe551bae01331948858ce932a96Chris Craik#include <cmath> 2591eff22b5d7f8fe551bae01331948858ce932a96Chris Craik#include <iomanip> 2691eff22b5d7f8fe551bae01331948858ce932a96Chris Craik#include <ostream> 2791eff22b5d7f8fe551bae01331948858ce932a96Chris Craik#include <SkRect.h> 2832f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik 29bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guynamespace android { 309d5316e3f56d138504565ff311145ac01621dff4Romain Guynamespace uirenderer { 31bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 3262d307c2402777d5e53b4590af5f32f8c55afd81Chris Craik#define RECT_STRING "%5.2f %5.2f %5.2f %5.2f" 3328ce94a4ffc7576f40776d212f1ada79fafaa061Chris Craik#define RECT_ARGS(r) \ 3428ce94a4ffc7576f40776d212f1ada79fafaa061Chris Craik (r).left, (r).top, (r).right, (r).bottom 353f085429fd47ebd32ac2463b3eae2a5a6c17be25Chris Craik#define SK_RECT_ARGS(r) \ 363f085429fd47ebd32ac2463b3eae2a5a6c17be25Chris Craik (r).left(), (r).top(), (r).right(), (r).bottom() 3728ce94a4ffc7576f40776d212f1ada79fafaa061Chris Craik 38bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy/////////////////////////////////////////////////////////////////////////////// 39bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy// Structs 40bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy/////////////////////////////////////////////////////////////////////////////// 41bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 4283b186a246e8ffd52b91a17c0019dd8c9c9d21b1Mathias Agopianclass Rect { 4383b186a246e8ffd52b91a17c0019dd8c9c9d21b1Mathias Agopianpublic: 447ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy float left; 457ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy float top; 467ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy float right; 477ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy float bottom; 487ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 495b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy // Used by Region 505b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy typedef float value_type; 515b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 5283b186a246e8ffd52b91a17c0019dd8c9c9d21b1Mathias Agopian // we don't provide copy-ctor and operator= on purpose 5383b186a246e8ffd52b91a17c0019dd8c9c9d21b1Mathias Agopian // because we want the compiler generated versions 5483b186a246e8ffd52b91a17c0019dd8c9c9d21b1Mathias Agopian 555b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inline Rect(): 567ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy left(0), 577ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy top(0), 587ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy right(0), 597ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bottom(0) { 607ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 617ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 625b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inline Rect(float left, float top, float right, float bottom): 637ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy left(left), 647ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy top(top), 657ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy right(right), 667ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bottom(bottom) { 677ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 687ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 695b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inline Rect(float width, float height): 705b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy left(0.0f), 715b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy top(0.0f), 725b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy right(width), 735b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bottom(height) { 745b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 755b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 76f53bfc911fa88c15b25f38553a5647ad00f221a3Chih-Hung Hsieh inline Rect(const SkIRect& rect): // NOLINT, implicit 7782457c51176855b9be0b441010870093a6feb414Chris Craik left(rect.fLeft), 7882457c51176855b9be0b441010870093a6feb414Chris Craik top(rect.fTop), 7982457c51176855b9be0b441010870093a6feb414Chris Craik right(rect.fRight), 8082457c51176855b9be0b441010870093a6feb414Chris Craik bottom(rect.fBottom) { 8182457c51176855b9be0b441010870093a6feb414Chris Craik } 8282457c51176855b9be0b441010870093a6feb414Chris Craik 83faecb78a6b11c780db47bc940ca7662899ab5d5eChih-Hung Hsieh inline Rect(const SkRect& rect): // NOLINT, implicit 84af6f7ed8dd4288a41d0a07a1f0f0be7d6d035b33ztenghui left(rect.fLeft), 85af6f7ed8dd4288a41d0a07a1f0f0be7d6d035b33ztenghui top(rect.fTop), 86af6f7ed8dd4288a41d0a07a1f0f0be7d6d035b33ztenghui right(rect.fRight), 87af6f7ed8dd4288a41d0a07a1f0f0be7d6d035b33ztenghui bottom(rect.fBottom) { 88af6f7ed8dd4288a41d0a07a1f0f0be7d6d035b33ztenghui } 89af6f7ed8dd4288a41d0a07a1f0f0be7d6d035b33ztenghui 907ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy friend int operator==(const Rect& a, const Rect& b) { 917ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return !memcmp(&a, &b, sizeof(a)); 927ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 937ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 947ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy friend int operator!=(const Rect& a, const Rect& b) { 957ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return memcmp(&a, &b, sizeof(a)); 967ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 977ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 985b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inline void clear() { 995b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy left = top = right = bottom = 0.0f; 1005b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 1015b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 1025b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inline bool isEmpty() const { 10383b186a246e8ffd52b91a17c0019dd8c9c9d21b1Mathias Agopian // this is written in such way this it'll handle NANs to return 10483b186a246e8ffd52b91a17c0019dd8c9c9d21b1Mathias Agopian // true (empty) 10583b186a246e8ffd52b91a17c0019dd8c9c9d21b1Mathias Agopian return !((left < right) && (top < bottom)); 1067ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 1077ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 1085b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inline void setEmpty() { 1095b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy left = top = right = bottom = 0.0f; 1107ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 1117ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 1125b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inline void set(float left, float top, float right, float bottom) { 1137ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy this->left = left; 1147ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy this->right = right; 1157ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy this->top = top; 1167ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy this->bottom = bottom; 1177ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 1187ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 1195b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy inline void set(const Rect& r) { 1207ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy set(r.left, r.top, r.right, r.bottom); 1217ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 1227ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 123487a92caef2eb90a62e8f8d7a6fe6315f1c1d8d8Rob Tsuk inline void set(const SkIRect& r) { 124487a92caef2eb90a62e8f8d7a6fe6315f1c1d8d8Rob Tsuk set(r.left(), r.top(), r.right(), r.bottom()); 125487a92caef2eb90a62e8f8d7a6fe6315f1c1d8d8Rob Tsuk } 126487a92caef2eb90a62e8f8d7a6fe6315f1c1d8d8Rob Tsuk 1278aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy inline float getWidth() const { 1287ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return right - left; 1297ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 1307ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 1318aef54fa17f2a3753d9a8f2027629bc480088f69Romain Guy inline float getHeight() const { 1327ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return bottom - top; 1337ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 1347ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 13583b186a246e8ffd52b91a17c0019dd8c9c9d21b1Mathias Agopian bool intersects(float l, float t, float r, float b) const { 136ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik float tempLeft = std::max(left, l); 137ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik float tempTop = std::max(top, t); 138ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik float tempRight = std::min(right, r); 139ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik float tempBottom = std::min(bottom, b); 140ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik 141ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik return ((tempLeft < tempRight) && (tempTop < tempBottom)); // !isEmpty 1427ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 1437ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 1447ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy bool intersects(const Rect& r) const { 1457ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy return intersects(r.left, r.top, r.right, r.bottom); 1467ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 1477ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 148ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik /** 149ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik * This method is named 'doIntersect' instead of 'intersect' so as not to be confused with 150ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik * SkRect::intersect / android.graphics.Rect#intersect behavior, which do not modify the object 151ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik * if the intersection of the rects would be empty. 152ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik */ 153ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik void doIntersect(float l, float t, float r, float b) { 154ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik left = std::max(left, l); 155ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik top = std::max(top, t); 156ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik right = std::min(right, r); 157ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik bottom = std::min(bottom, b); 1587ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 1597ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 160ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik void doIntersect(const Rect& r) { 161ac02eb9035a13a3d09c2def9ed63d04225eb2509Chris Craik doIntersect(r.left, r.top, r.right, r.bottom); 1627ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 1637ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy 1642db5e993b626794eb07a0ff354269f9a77da81b3Romain Guy inline bool contains(float l, float t, float r, float b) const { 165ec31f83bd3af1f900d1ee9116b15f56904c66dcdRomain Guy return l >= left && t >= top && r <= right && b <= bottom; 166ec31f83bd3af1f900d1ee9116b15f56904c66dcdRomain Guy } 167ec31f83bd3af1f900d1ee9116b15f56904c66dcdRomain Guy 1682db5e993b626794eb07a0ff354269f9a77da81b3Romain Guy inline bool contains(const Rect& r) const { 169ec31f83bd3af1f900d1ee9116b15f56904c66dcdRomain Guy return contains(r.left, r.top, r.right, r.bottom); 170ec31f83bd3af1f900d1ee9116b15f56904c66dcdRomain Guy } 171ec31f83bd3af1f900d1ee9116b15f56904c66dcdRomain Guy 172079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bool unionWith(const Rect& r) { 173079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy if (r.left < r.right && r.top < r.bottom) { 174079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy if (left < right && top < bottom) { 175079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy if (left > r.left) left = r.left; 176079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy if (top > r.top) top = r.top; 177079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy if (right < r.right) right = r.right; 178079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy if (bottom < r.bottom) bottom = r.bottom; 179079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return true; 180079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy } else { 181079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy left = r.left; 182079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy top = r.top; 183079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy right = r.right; 184079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy bottom = r.bottom; 185079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return true; 186079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy } 187079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy } 188079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy return false; 189079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy } 190079ba2c85b15e882629b8d188f5fbdb42f7f8eeaRomain Guy 1915b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy void translate(float dx, float dy) { 1925b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy left += dx; 1935b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy right += dx; 1945b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy top += dy; 1955b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy bottom += dy; 1965b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy } 1975b3b35296e8b2c8d3f07d32bb645d5414db41a1dRomain Guy 198e4aa95e3627226bcb0d8cc3e42dca6e4df8f421cChris Craik void inset(float delta) { 199e4aa95e3627226bcb0d8cc3e42dca6e4df8f421cChris Craik outset(-delta); 200e4aa95e3627226bcb0d8cc3e42dca6e4df8f421cChris Craik } 201e4aa95e3627226bcb0d8cc3e42dca6e4df8f421cChris Craik 202c3566d06421c8acc0aafb18f7e307e5725ce87e1Chris Craik void outset(float delta) { 203c3566d06421c8acc0aafb18f7e307e5725ce87e1Chris Craik left -= delta; 204c3566d06421c8acc0aafb18f7e307e5725ce87e1Chris Craik top -= delta; 205c3566d06421c8acc0aafb18f7e307e5725ce87e1Chris Craik right += delta; 206c3566d06421c8acc0aafb18f7e307e5725ce87e1Chris Craik bottom += delta; 207c3566d06421c8acc0aafb18f7e307e5725ce87e1Chris Craik } 208c3566d06421c8acc0aafb18f7e307e5725ce87e1Chris Craik 20905f3d6e5111fd08df5cd9aae2c3d28399dc0e7f5Chris Craik void outset(float xdelta, float ydelta) { 21005f3d6e5111fd08df5cd9aae2c3d28399dc0e7f5Chris Craik left -= xdelta; 21105f3d6e5111fd08df5cd9aae2c3d28399dc0e7f5Chris Craik top -= ydelta; 21205f3d6e5111fd08df5cd9aae2c3d28399dc0e7f5Chris Craik right += xdelta; 21305f3d6e5111fd08df5cd9aae2c3d28399dc0e7f5Chris Craik bottom += ydelta; 21405f3d6e5111fd08df5cd9aae2c3d28399dc0e7f5Chris Craik } 21505f3d6e5111fd08df5cd9aae2c3d28399dc0e7f5Chris Craik 2165e49b307eb99269db2db257760508b8efd7bb97dChris Craik /** 21732f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik * Similar to snapToPixelBoundaries, but estimates bounds conservatively to handle GL rounding 21832f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik * errors. 2195e49b307eb99269db2db257760508b8efd7bb97dChris Craik * 22032f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik * This function should be used whenever estimating the damage rect of geometry already mapped 22132f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik * into layer space. 2225e49b307eb99269db2db257760508b8efd7bb97dChris Craik */ 22332f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik void snapGeometryToPixelBoundaries(bool snapOut) { 22432f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik if (snapOut) { 22532f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik /* For AA geometry with a ramp perimeter, don't snap by rounding - AA geometry will have 22632f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik * a 0.5 pixel perimeter not accounted for in its bounds. Instead, snap by 22732f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik * conservatively rounding out the bounds with floor/ceil. 22832f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik * 22932f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik * In order to avoid changing integer bounds with floor/ceil due to rounding errors 23032f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik * inset the bounds first by the fudge factor. Very small fraction-of-a-pixel errors 23132f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik * from this inset will only incur similarly small errors in output, due to transparency 23232f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik * in extreme outside of the geometry. 23332f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik */ 234564acf7c9bff822f608cda0d5df0a64a9f9aaefdChris Craik left = floorf(left + Vertex::GeometryFudgeFactor()); 235564acf7c9bff822f608cda0d5df0a64a9f9aaefdChris Craik top = floorf(top + Vertex::GeometryFudgeFactor()); 236564acf7c9bff822f608cda0d5df0a64a9f9aaefdChris Craik right = ceilf(right - Vertex::GeometryFudgeFactor()); 237564acf7c9bff822f608cda0d5df0a64a9f9aaefdChris Craik bottom = ceilf(bottom - Vertex::GeometryFudgeFactor()); 23832f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik } else { 23932f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik /* For other geometry, we do the regular rounding in order to snap, but also outset the 24032f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik * bounds by a fudge factor. This ensures that ambiguous geometry (e.g. a non-AA Rect 24132f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik * with top left at (0.5, 0.5)) will err on the side of a larger damage rect. 24232f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik */ 243564acf7c9bff822f608cda0d5df0a64a9f9aaefdChris Craik left = floorf(left + 0.5f - Vertex::GeometryFudgeFactor()); 244564acf7c9bff822f608cda0d5df0a64a9f9aaefdChris Craik top = floorf(top + 0.5f - Vertex::GeometryFudgeFactor()); 245564acf7c9bff822f608cda0d5df0a64a9f9aaefdChris Craik right = floorf(right + 0.5f + Vertex::GeometryFudgeFactor()); 246564acf7c9bff822f608cda0d5df0a64a9f9aaefdChris Craik bottom = floorf(bottom + 0.5f + Vertex::GeometryFudgeFactor()); 24732f05e343c5ffb17f3235942bcda651bd3b9f1d6Chris Craik } 2485e49b307eb99269db2db257760508b8efd7bb97dChris Craik } 2495e49b307eb99269db2db257760508b8efd7bb97dChris Craik 250bf434114cbf55b216fdc76fc8d65a75e84c9dab5Romain Guy void snapToPixelBoundaries() { 251ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy left = floorf(left + 0.5f); 252ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy top = floorf(top + 0.5f); 253ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy right = floorf(right + 0.5f); 254ae88e5e8e9cb6c9539314c4360c5b20f8ec1fefcRomain Guy bottom = floorf(bottom + 0.5f); 255bf434114cbf55b216fdc76fc8d65a75e84c9dab5Romain Guy } 256bf434114cbf55b216fdc76fc8d65a75e84c9dab5Romain Guy 257f0a590781b2c3e34132b2011d3956135add73ae0Chris Craik void roundOut() { 258f0a590781b2c3e34132b2011d3956135add73ae0Chris Craik left = floorf(left); 259f0a590781b2c3e34132b2011d3956135add73ae0Chris Craik top = floorf(top); 260f0a590781b2c3e34132b2011d3956135add73ae0Chris Craik right = ceilf(right); 261f0a590781b2c3e34132b2011d3956135add73ae0Chris Craik bottom = ceilf(bottom); 262f0a590781b2c3e34132b2011d3956135add73ae0Chris Craik } 263f0a590781b2c3e34132b2011d3956135add73ae0Chris Craik 26415c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik /* 26515c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik * Similar to unionWith, except this makes the assumption that both rects are non-empty 26615c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik * to avoid both emptiness checks. 26715c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik */ 26815c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik void expandToCover(const Rect& other) { 26915c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik left = std::min(left, other.left); 27015c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik top = std::min(top, other.top); 27115c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik right = std::max(right, other.right); 27215c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik bottom = std::max(bottom, other.bottom); 27315c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik } 27415c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik 27515c3f19a445b8df575911a16e8a6dba755a084b5Chris Craik void expandToCover(float x, float y) { 276df72b63928cc1492b72ba9a4e99d5e714f93ccc6Chris Craik left = std::min(left, x); 277df72b63928cc1492b72ba9a4e99d5e714f93ccc6Chris Craik top = std::min(top, y); 278df72b63928cc1492b72ba9a4e99d5e714f93ccc6Chris Craik right = std::max(right, x); 279df72b63928cc1492b72ba9a4e99d5e714f93ccc6Chris Craik bottom = std::max(bottom, y); 280c93e45cf045f41aea95f856173e4043d988a5a5cChris Craik } 281c93e45cf045f41aea95f856173e4043d988a5a5cChris Craik 282487a92caef2eb90a62e8f8d7a6fe6315f1c1d8d8Rob Tsuk SkRect toSkRect() const { 283487a92caef2eb90a62e8f8d7a6fe6315f1c1d8d8Rob Tsuk return SkRect::MakeLTRB(left, top, right, bottom); 284487a92caef2eb90a62e8f8d7a6fe6315f1c1d8d8Rob Tsuk } 285487a92caef2eb90a62e8f8d7a6fe6315f1c1d8d8Rob Tsuk 286487a92caef2eb90a62e8f8d7a6fe6315f1c1d8d8Rob Tsuk SkIRect toSkIRect() const { 287487a92caef2eb90a62e8f8d7a6fe6315f1c1d8d8Rob Tsuk return SkIRect::MakeLTRB(left, top, right, bottom); 288487a92caef2eb90a62e8f8d7a6fe6315f1c1d8d8Rob Tsuk } 289487a92caef2eb90a62e8f8d7a6fe6315f1c1d8d8Rob Tsuk 290e84a208317e0ed388fcdad1e6743c7849acb51b0Chris Craik void dump(const char* label = nullptr) const { 2918ecf41c61a5185207a21d64681e8ebc2502b7b2aChris Craik ALOGD("%s[l=%.2f t=%.2f r=%.2f b=%.2f]", label ? label : "Rect", left, top, right, bottom); 2927ae7ac48aa2b53453c9805075171ecd5bcafd7deRomain Guy } 29391eff22b5d7f8fe551bae01331948858ce932a96Chris Craik 29491eff22b5d7f8fe551bae01331948858ce932a96Chris Craik friend std::ostream& operator<<(std::ostream& os, const Rect& rect) { 29591eff22b5d7f8fe551bae01331948858ce932a96Chris Craik if (rect.isEmpty()) { 296034a10bf216cdef251928edf72d93668d81515f8Chris Craik // Print empty, but continue, since empty rects may still have useful coordinate info 297034a10bf216cdef251928edf72d93668d81515f8Chris Craik os << "(empty)"; 29891eff22b5d7f8fe551bae01331948858ce932a96Chris Craik } 29991eff22b5d7f8fe551bae01331948858ce932a96Chris Craik 30091eff22b5d7f8fe551bae01331948858ce932a96Chris Craik if (rect.left == 0 && rect.top == 0) { 30191eff22b5d7f8fe551bae01331948858ce932a96Chris Craik return os << "[" << rect.right << " x " << rect.bottom << "]"; 30291eff22b5d7f8fe551bae01331948858ce932a96Chris Craik } 30391eff22b5d7f8fe551bae01331948858ce932a96Chris Craik 30491eff22b5d7f8fe551bae01331948858ce932a96Chris Craik return os << "[" << rect.left 30591eff22b5d7f8fe551bae01331948858ce932a96Chris Craik << " " << rect.top 30691eff22b5d7f8fe551bae01331948858ce932a96Chris Craik << " " << rect.right 30791eff22b5d7f8fe551bae01331948858ce932a96Chris Craik << " " << rect.bottom << "]"; 30891eff22b5d7f8fe551bae01331948858ce932a96Chris Craik } 30983b186a246e8ffd52b91a17c0019dd8c9c9d21b1Mathias Agopian}; // class Rect 310bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 3119d5316e3f56d138504565ff311145ac01621dff4Romain Guy}; // namespace uirenderer 312bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy}; // namespace android 313bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4Romain Guy 314