/*
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* Copyright 2006 The Android Open Source Project
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkRect.h"
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#include "SkMalloc.h"
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void SkIRect::join(int32_t left, int32_t top, int32_t right, int32_t bottom) {
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// do nothing if the params are empty
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if (left >= right || top >= bottom) {
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return;
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}
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// if we are empty, just assign
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if (fLeft >= fRight || fTop >= fBottom) {
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this->set(left, top, right, bottom);
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} else {
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if (left < fLeft) fLeft = left;
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if (top < fTop) fTop = top;
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if (right > fRight) fRight = right;
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if (bottom > fBottom) fBottom = bottom;
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}
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}
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/////////////////////////////////////////////////////////////////////////////
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void SkRect::toQuad(SkPoint quad[4]) const {
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SkASSERT(quad);
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quad[0].set(fLeft, fTop);
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quad[1].set(fRight, fTop);
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quad[2].set(fRight, fBottom);
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quad[3].set(fLeft, fBottom);
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}
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#include "SkNx.h"
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bool SkRect::setBoundsCheck(const SkPoint pts[], int count) {
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SkASSERT((pts && count > 0) || count == 0);
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if (count <= 0) {
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this->setEmpty();
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return true;
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}
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Sk4s min, max;
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if (count & 1) {
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min = max = Sk4s(pts->fX, pts->fY,
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pts->fX, pts->fY);
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pts += 1;
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count -= 1;
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} else {
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min = max = Sk4s::Load(pts);
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pts += 2;
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count -= 2;
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}
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Sk4s accum = min * 0;
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while (count) {
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Sk4s xy = Sk4s::Load(pts);
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accum = accum * xy;
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min = Sk4s::Min(min, xy);
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max = Sk4s::Max(max, xy);
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pts += 2;
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count -= 2;
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}
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bool all_finite = (accum * 0 == 0).allTrue();
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if (all_finite) {
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this->set(SkTMin(min[0], min[2]), SkTMin(min[1], min[3]),
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SkTMax(max[0], max[2]), SkTMax(max[1], max[3]));
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} else {
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this->setEmpty();
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}
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return all_finite;
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}
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void SkRect::setBoundsNoCheck(const SkPoint pts[], int count) {
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if (!this->setBoundsCheck(pts, count)) {
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this->set(SK_ScalarNaN, SK_ScalarNaN, SK_ScalarNaN, SK_ScalarNaN);
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}
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}
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#define CHECK_INTERSECT(al, at, ar, ab, bl, bt, br, bb) \
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SkScalar L = SkMaxScalar(al, bl); \
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SkScalar R = SkMinScalar(ar, br); \
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SkScalar T = SkMaxScalar(at, bt); \
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SkScalar B = SkMinScalar(ab, bb); \
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do { if (!(L < R && T < B)) return false; } while (0)
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// do the !(opposite) check so we return false if either arg is NaN
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bool SkRect::intersect(SkScalar left, SkScalar top, SkScalar right, SkScalar bottom) {
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CHECK_INTERSECT(left, top, right, bottom, fLeft, fTop, fRight, fBottom);
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this->setLTRB(L, T, R, B);
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return true;
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}
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bool SkRect::intersect(const SkRect& r) {
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return this->intersect(r.fLeft, r.fTop, r.fRight, r.fBottom);
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}
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bool SkRect::intersect(const SkRect& a, const SkRect& b) {
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CHECK_INTERSECT(a.fLeft, a.fTop, a.fRight, a.fBottom, b.fLeft, b.fTop, b.fRight, b.fBottom);
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this->setLTRB(L, T, R, B);
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return true;
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}
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void SkRect::join(SkScalar left, SkScalar top, SkScalar right, SkScalar bottom) {
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// do nothing if the params are empty
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if (left >= right || top >= bottom) {
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return;
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}
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// if we are empty, just assign
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if (fLeft >= fRight || fTop >= fBottom) {
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this->set(left, top, right, bottom);
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} else {
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fLeft = SkMinScalar(fLeft, left);
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fTop = SkMinScalar(fTop, top);
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fRight = SkMaxScalar(fRight, right);
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fBottom = SkMaxScalar(fBottom, bottom);
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}
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}
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////////////////////////////////////////////////////////////////////////////////////////////////
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#include "SkString.h"
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#include "SkStringUtils.h"
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static const char* set_scalar(SkString* storage, SkScalar value, SkScalarAsStringType asType) {
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storage->reset();
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SkAppendScalar(storage, value, asType);
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return storage->c_str();
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}
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void SkRect::dump(bool asHex) const {
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SkScalarAsStringType asType = asHex ? kHex_SkScalarAsStringType : kDec_SkScalarAsStringType;
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SkString line;
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if (asHex) {
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SkString tmp;
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line.printf( "SkRect::MakeLTRB(%s, /* %f */\n", set_scalar(&tmp, fLeft, asType), fLeft);
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line.appendf(" %s, /* %f */\n", set_scalar(&tmp, fTop, asType), fTop);
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line.appendf(" %s, /* %f */\n", set_scalar(&tmp, fRight, asType), fRight);
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line.appendf(" %s /* %f */);", set_scalar(&tmp, fBottom, asType), fBottom);
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} else {
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SkString strL, strT, strR, strB;
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SkAppendScalarDec(&strL, fLeft);
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SkAppendScalarDec(&strT, fTop);
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SkAppendScalarDec(&strR, fRight);
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SkAppendScalarDec(&strB, fBottom);
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line.printf("SkRect::MakeLTRB(%s, %s, %s, %s);",
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strL.c_str(), strT.c_str(), strR.c_str(), strB.c_str());
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}
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SkDebugf("%s\n", line.c_str());
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}
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