1fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/* 2fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Copyright 2010 Google Inc. 3fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * 4fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * Use of this source code is governed by a BSD-style license that can be 5fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot * found in the LICENSE file. 6fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot */ 7fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 8fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#ifndef GrRect_DEFINED 9fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#define GrRect_DEFINED 10fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 11fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkTypes.h" 12fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#include "SkRect.h" 13fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 14fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotstruct GrIRect16 { 15fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot int16_t fLeft, fTop, fRight, fBottom; 16fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 17fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot static GrIRect16 SK_WARN_UNUSED_RESULT MakeEmpty() { 18fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot GrIRect16 r; 19fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot r.setEmpty(); 20fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return r; 21fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 22fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 23fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot static GrIRect16 SK_WARN_UNUSED_RESULT MakeWH(int16_t w, int16_t h) { 24fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot GrIRect16 r; 25fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot r.set(0, 0, w, h); 26fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return r; 27fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 28fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 29fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot static GrIRect16 SK_WARN_UNUSED_RESULT MakeXYWH(int16_t x, int16_t y, int16_t w, int16_t h) { 30fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot GrIRect16 r; 31fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot r.set(x, y, x + w, y + h); 32fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return r; 33fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 34fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 35fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot int width() const { return fRight - fLeft; } 36fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot int height() const { return fBottom - fTop; } 37fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot int area() const { return this->width() * this->height(); } 38fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot bool isEmpty() const { return fLeft >= fRight || fTop >= fBottom; } 39fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 40fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void setEmpty() { memset(this, 0, sizeof(*this)); } 41fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 42fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void set(int16_t left, int16_t top, int16_t right, int16_t bottom) { 43fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fLeft = left; 44fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTop = top; 45fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fRight = right; 46fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fBottom = bottom; 47fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 48fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 49fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot void set(const SkIRect& r) { 50fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fLeft = SkToS16(r.fLeft); 51fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fTop = SkToS16(r.fTop); 52fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fRight = SkToS16(r.fRight); 53fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot fBottom = SkToS16(r.fBottom); 54fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot } 55fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot}; 56fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 57fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/** Returns true if the rectangles have a nonzero area of overlap. It assumed that rects can be 58fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot infinitely small but not "inverted". */ 59fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotstatic inline bool GrRectsOverlap(const SkRect& a, const SkRect& b) { 60fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // See skbug.com/6607 about the isFinite() checks. 61fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkASSERT(!a.isFinite() || (a.fLeft <= a.fRight && a.fTop <= a.fBottom)); 62fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkASSERT(!b.isFinite() || (b.fLeft <= b.fRight && b.fTop <= b.fBottom)); 63fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return a.fRight > b.fLeft && a.fBottom > b.fTop && b.fRight > a.fLeft && b.fBottom > a.fTop; 64fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 65fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot 66fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot/** Returns true if the rectangles overlap or share an edge or corner. It assumed that rects can be 67fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot infinitely small but not "inverted". */ 68fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robotstatic inline bool GrRectsTouchOrOverlap(const SkRect& a, const SkRect& b) { 69fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot // See skbug.com/6607 about the isFinite() checks. 70fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkASSERT(!a.isFinite() || (a.fLeft <= a.fRight && a.fTop <= a.fBottom)); 71fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot SkASSERT(!b.isFinite() || (b.fLeft <= b.fRight && b.fTop <= b.fBottom)); 72fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot return a.fRight >= b.fLeft && a.fBottom >= b.fTop && b.fRight >= a.fLeft && b.fBottom >= a.fTop; 73fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot} 74fe17456d5e528078ce69b5f15cf7adf1fab963fandroid-build-team Robot#endif 75