blob: 1c830fc393704adf57edcf1dbbeff1639ceaebf7 [file] [log] [blame]
/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPath.h"
#include "include/core/SkRect.h"
#include "include/pathops/SkPathOps.h"
#include "include/private/base/SkTDArray.h"
#include "include/utils/SkRandom.h"
#include "tests/PathOpsExtendedTest.h"
#include "tests/PathOpsThreadedCommon.h"
#include "tests/Test.h"
#include <algorithm>
#include <cstdint>
static void testTightBoundsLines(PathOpsThreadState* data) {
SkRandom ran;
for (int index = 0; index < 1000; ++index) {
SkPath path;
int contourCount = ran.nextRangeU(1, 10);
for (int cIndex = 0; cIndex < contourCount; ++cIndex) {
int lineCount = ran.nextRangeU(1, 10);
path.moveTo(ran.nextRangeF(-1000, 1000), ran.nextRangeF(-1000, 1000));
for (int lIndex = 0; lIndex < lineCount; ++lIndex) {
path.lineTo(ran.nextRangeF(-1000, 1000), ran.nextRangeF(-1000, 1000));
}
if (ran.nextBool()) {
path.close();
}
}
SkRect classicBounds = path.getBounds();
SkRect tightBounds;
REPORTER_ASSERT(data->fReporter, TightBounds(path, &tightBounds));
REPORTER_ASSERT(data->fReporter, classicBounds == tightBounds);
}
}
DEF_TEST(PathOpsTightBoundsLines, reporter) {
initializeTests(reporter, "tightBoundsLines");
PathOpsThreadedTestRunner testRunner(reporter);
int outerCount = reporter->allowExtendedTest() ? 100 : 1;
for (int index = 0; index < outerCount; ++index) {
for (int idx2 = 0; idx2 < 10; ++idx2) {
*testRunner.fRunnables.append() =
new PathOpsThreadedRunnable(&testTightBoundsLines, 0, 0, 0, 0, &testRunner);
}
}
testRunner.render();
}
static void testTightBoundsQuads(PathOpsThreadState* data) {
SkRandom ran;
const int bitWidth = 32;
const int bitHeight = 32;
const float pathMin = 1;
const float pathMax = (float) (bitHeight - 2);
SkBitmap& bits = *data->fBitmap;
if (bits.width() == 0) {
bits.allocN32Pixels(bitWidth, bitHeight);
}
SkCanvas canvas(bits);
SkPaint paint;
for (int index = 0; index < 100; ++index) {
SkPath path;
int contourCount = ran.nextRangeU(1, 10);
for (int cIndex = 0; cIndex < contourCount; ++cIndex) {
int lineCount = ran.nextRangeU(1, 10);
path.moveTo(ran.nextRangeF(1, pathMax), ran.nextRangeF(pathMin, pathMax));
for (int lIndex = 0; lIndex < lineCount; ++lIndex) {
if (ran.nextBool()) {
path.lineTo(ran.nextRangeF(pathMin, pathMax), ran.nextRangeF(pathMin, pathMax));
} else {
path.quadTo(ran.nextRangeF(pathMin, pathMax), ran.nextRangeF(pathMin, pathMax),
ran.nextRangeF(pathMin, pathMax), ran.nextRangeF(pathMin, pathMax));
}
}
if (ran.nextBool()) {
path.close();
}
}
SkRect classicBounds = path.getBounds();
SkRect tightBounds;
REPORTER_ASSERT(data->fReporter, TightBounds(path, &tightBounds));
REPORTER_ASSERT(data->fReporter, classicBounds.contains(tightBounds));
canvas.drawColor(SK_ColorWHITE);
canvas.drawPath(path, paint);
SkIRect bitsWritten = {31, 31, 0, 0};
for (int y = 0; y < bitHeight; ++y) {
uint32_t* addr1 = data->fBitmap->getAddr32(0, y);
bool lineWritten = false;
for (int x = 0; x < bitWidth; ++x) {
if (addr1[x] == (uint32_t) -1) {
continue;
}
lineWritten = true;
bitsWritten.fLeft = std::min(bitsWritten.fLeft, x);
bitsWritten.fRight = std::max(bitsWritten.fRight, x);
}
if (!lineWritten) {
continue;
}
bitsWritten.fTop = std::min(bitsWritten.fTop, y);
bitsWritten.fBottom = std::max(bitsWritten.fBottom, y);
}
if (!bitsWritten.isEmpty()) {
SkIRect tightOut;
tightBounds.roundOut(&tightOut);
REPORTER_ASSERT(data->fReporter, tightOut.contains(bitsWritten));
}
}
}
DEF_TEST(PathOpsTightBoundsQuads, reporter) {
initializeTests(reporter, "tightBoundsQuads");
PathOpsThreadedTestRunner testRunner(reporter);
int outerCount = reporter->allowExtendedTest() ? 100 : 1;
for (int index = 0; index < outerCount; ++index) {
for (int idx2 = 0; idx2 < 10; ++idx2) {
*testRunner.fRunnables.append() =
new PathOpsThreadedRunnable(&testTightBoundsQuads, 0, 0, 0, 0, &testRunner);
}
}
testRunner.render();
}
DEF_TEST(PathOpsTightBoundsMove, reporter) {
SkPath path;
path.moveTo(10, 10);
path.close();
path.moveTo(20, 20);
path.lineTo(20, 20);
path.close();
path.moveTo(15, 15);
path.lineTo(15, 15);
path.close();
const SkRect& bounds = path.getBounds();
SkRect tight;
REPORTER_ASSERT(reporter, TightBounds(path, &tight));
REPORTER_ASSERT(reporter, bounds == tight);
}
DEF_TEST(PathOpsTightBoundsMoveOne, reporter) {
SkPath path;
path.moveTo(20, 20);
const SkRect& bounds = path.getBounds();
SkRect tight;
REPORTER_ASSERT(reporter, TightBounds(path, &tight));
REPORTER_ASSERT(reporter, bounds == tight);
}
DEF_TEST(PathOpsTightBoundsMoveTwo, reporter) {
SkPath path;
path.moveTo(20, 20);
path.moveTo(40, 40);
const SkRect& bounds = path.getBounds();
SkRect tight;
REPORTER_ASSERT(reporter, TightBounds(path, &tight));
REPORTER_ASSERT(reporter, bounds == tight);
}
DEF_TEST(PathOpsTightBoundsTiny, reporter) {
SkPath path;
path.moveTo(1, 1);
path.quadTo(1.000001f, 1, 1, 1);
const SkRect& bounds = path.getBounds();
SkRect tight;
REPORTER_ASSERT(reporter, TightBounds(path, &tight));
SkRect moveBounds = {1, 1, 1, 1};
REPORTER_ASSERT(reporter, bounds != tight);
REPORTER_ASSERT(reporter, moveBounds == tight);
}
DEF_TEST(PathOpsTightBoundsWellBehaved, reporter) {
SkPath path;
path.moveTo(1, 1);
path.quadTo(2, 3, 4, 5);
const SkRect& bounds = path.getBounds();
SkRect tight;
REPORTER_ASSERT(reporter, TightBounds(path, &tight));
REPORTER_ASSERT(reporter, bounds == tight);
}
DEF_TEST(PathOpsTightBoundsIllBehaved, reporter) {
SkPath path;
path.moveTo(1, 1);
path.quadTo(4, 3, 2, 2);
const SkRect& bounds = path.getBounds();
SkRect tight;
REPORTER_ASSERT(reporter, TightBounds(path, &tight));
REPORTER_ASSERT(reporter, bounds != tight);
}
DEF_TEST(PathOpsTightBoundsIllBehavedScaled, reporter) {
SkPath path;
path.moveTo(0, 0);
path.quadTo(1048578, 1048577, 1048576, 1048576);
const SkRect& bounds = path.getBounds();
SkRect tight;
REPORTER_ASSERT(reporter, TightBounds(path, &tight));
REPORTER_ASSERT(reporter, bounds != tight);
REPORTER_ASSERT(reporter, tight.right() == 1048576);
REPORTER_ASSERT(reporter, tight.bottom() == 1048576);
}