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skia2/tests/PathTest.cpp
sugoi@google.com 54f0d1b711 Tests : Unused parameters cleanup 
I removed unused parameters in the tests wherever it was trivial to do so. I'm trying to get the easy ones out of the way before we get into more involved discussions around this.
Review URL: https://codereview.appspot.com/7394055

git-svn-id: http://skia.googlecode.com/svn/trunk@7891 2bbb7eff-a529-9590-31e7-b0007b416f81
2013-02-27 19:17:41 +00:00

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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Test.h"
#include "SkCanvas.h"
#include "SkPaint.h"
#include "SkPath.h"
#include "SkParse.h"
#include "SkParsePath.h"
#include "SkPathEffect.h"
#include "SkRandom.h"
#include "SkReader32.h"
#include "SkSize.h"
#include "SkWriter32.h"
#include "SkSurface.h"
#if defined(WIN32)
#define SUPPRESS_VISIBILITY_WARNING
#else
#define SUPPRESS_VISIBILITY_WARNING __attribute__((visibility("hidden")))
#endif
static SkSurface* new_surface(int w, int h) {
SkImage::Info info = {
w, h, SkImage::kPMColor_ColorType, SkImage::kPremul_AlphaType
};
return SkSurface::NewRaster(info);
}
static void build_path_170666(SkPath& path) {
path.moveTo(17.9459f, 21.6344f);
path.lineTo(139.545f, -47.8105f);
path.lineTo(139.545f, -47.8105f);
path.lineTo(131.07f, -47.3888f);
path.lineTo(131.07f, -47.3888f);
path.lineTo(122.586f, -46.9532f);
path.lineTo(122.586f, -46.9532f);
path.lineTo(18076.6f, 31390.9f);
path.lineTo(18076.6f, 31390.9f);
path.lineTo(18085.1f, 31390.5f);
path.lineTo(18085.1f, 31390.5f);
path.lineTo(18076.6f, 31390.9f);
path.lineTo(18076.6f, 31390.9f);
path.lineTo(17955, 31460.3f);
path.lineTo(17955, 31460.3f);
path.lineTo(17963.5f, 31459.9f);
path.lineTo(17963.5f, 31459.9f);
path.lineTo(17971.9f, 31459.5f);
path.lineTo(17971.9f, 31459.5f);
path.lineTo(17.9551f, 21.6205f);
path.lineTo(17.9551f, 21.6205f);
path.lineTo(9.47091f, 22.0561f);
path.lineTo(9.47091f, 22.0561f);
path.lineTo(17.9459f, 21.6344f);
path.lineTo(17.9459f, 21.6344f);
path.close();path.moveTo(0.995934f, 22.4779f);
path.lineTo(0.986725f, 22.4918f);
path.lineTo(0.986725f, 22.4918f);
path.lineTo(17955, 31460.4f);
path.lineTo(17955, 31460.4f);
path.lineTo(17971.9f, 31459.5f);
path.lineTo(17971.9f, 31459.5f);
path.lineTo(18093.6f, 31390.1f);
path.lineTo(18093.6f, 31390.1f);
path.lineTo(18093.6f, 31390);
path.lineTo(18093.6f, 31390);
path.lineTo(139.555f, -47.8244f);
path.lineTo(139.555f, -47.8244f);
path.lineTo(122.595f, -46.9671f);
path.lineTo(122.595f, -46.9671f);
path.lineTo(0.995934f, 22.4779f);
path.lineTo(0.995934f, 22.4779f);
path.close();
path.moveTo(5.43941f, 25.5223f);
path.lineTo(798267, -28871.1f);
path.lineTo(798267, -28871.1f);
path.lineTo(3.12512e+06f, -113102);
path.lineTo(3.12512e+06f, -113102);
path.cubicTo(5.16324e+06f, -186882, 8.15247e+06f, -295092, 1.1957e+07f, -432813);
path.cubicTo(1.95659e+07f, -708257, 3.04359e+07f, -1.10175e+06f, 4.34798e+07f, -1.57394e+06f);
path.cubicTo(6.95677e+07f, -2.51831e+06f, 1.04352e+08f, -3.77748e+06f, 1.39135e+08f, -5.03666e+06f);
path.cubicTo(1.73919e+08f, -6.29583e+06f, 2.08703e+08f, -7.555e+06f, 2.34791e+08f, -8.49938e+06f);
path.cubicTo(2.47835e+08f, -8.97157e+06f, 2.58705e+08f, -9.36506e+06f, 2.66314e+08f, -9.6405e+06f);
path.cubicTo(2.70118e+08f, -9.77823e+06f, 2.73108e+08f, -9.88644e+06f, 2.75146e+08f, -9.96022e+06f);
path.cubicTo(2.76165e+08f, -9.99711e+06f, 2.76946e+08f, -1.00254e+07f, 2.77473e+08f, -1.00444e+07f);
path.lineTo(2.78271e+08f, -1.00733e+07f);
path.lineTo(2.78271e+08f, -1.00733e+07f);
path.cubicTo(2.78271e+08f, -1.00733e+07f, 2.08703e+08f, -7.555e+06f, 135.238f, 23.3517f);
path.cubicTo(131.191f, 23.4981f, 125.995f, 23.7976f, 123.631f, 24.0206f);
path.cubicTo(121.267f, 24.2436f, 122.631f, 24.3056f, 126.677f, 24.1591f);
path.cubicTo(2.08703e+08f, -7.555e+06f, 2.78271e+08f, -1.00733e+07f, 2.78271e+08f, -1.00733e+07f);
path.lineTo(2.77473e+08f, -1.00444e+07f);
path.lineTo(2.77473e+08f, -1.00444e+07f);
path.cubicTo(2.76946e+08f, -1.00254e+07f, 2.76165e+08f, -9.99711e+06f, 2.75146e+08f, -9.96022e+06f);
path.cubicTo(2.73108e+08f, -9.88644e+06f, 2.70118e+08f, -9.77823e+06f, 2.66314e+08f, -9.6405e+06f);
path.cubicTo(2.58705e+08f, -9.36506e+06f, 2.47835e+08f, -8.97157e+06f, 2.34791e+08f, -8.49938e+06f);
path.cubicTo(2.08703e+08f, -7.555e+06f, 1.73919e+08f, -6.29583e+06f, 1.39135e+08f, -5.03666e+06f);
path.cubicTo(1.04352e+08f, -3.77749e+06f, 6.95677e+07f, -2.51831e+06f, 4.34798e+07f, -1.57394e+06f);
path.cubicTo(3.04359e+07f, -1.10175e+06f, 1.95659e+07f, -708258, 1.1957e+07f, -432814);
path.cubicTo(8.15248e+06f, -295092, 5.16324e+06f, -186883, 3.12513e+06f, -113103);
path.lineTo(798284, -28872);
path.lineTo(798284, -28872);
path.lineTo(22.4044f, 24.6677f);
path.lineTo(22.4044f, 24.6677f);
path.cubicTo(22.5186f, 24.5432f, 18.8134f, 24.6337f, 14.1287f, 24.8697f);
path.cubicTo(9.4439f, 25.1057f, 5.55359f, 25.3978f, 5.43941f, 25.5223f);
path.close();
}
static void build_path_simple_170666(SkPath& path) {
path.moveTo(126.677f, 24.1591f);
path.cubicTo(2.08703e+08f, -7.555e+06f, 2.78271e+08f, -1.00733e+07f, 2.78271e+08f, -1.00733e+07f);
}
// This used to assert in the SK_DEBUG build, as the clip step would fail with
// too-few interations in our cubic-line intersection code. That code now runs
// 24 interations (instead of 16).
static void test_crbug_170666() {
SkPath path;
SkPaint paint;
paint.setAntiAlias(true);
SkAutoTUnref<SkSurface> surface(new_surface(1000, 1000));
build_path_simple_170666(path);
surface->getCanvas()->drawPath(path, paint);
build_path_170666(path);
surface->getCanvas()->drawPath(path, paint);
}
// Make sure we stay non-finite once we get there (unless we reset or rewind).
static void test_addrect_isfinite(skiatest::Reporter* reporter) {
SkPath path;
path.addRect(SkRect::MakeWH(50, 100));
REPORTER_ASSERT(reporter, path.isFinite());
path.moveTo(0, 0);
path.lineTo(SK_ScalarInfinity, 42);
REPORTER_ASSERT(reporter, !path.isFinite());
path.addRect(SkRect::MakeWH(50, 100));
REPORTER_ASSERT(reporter, !path.isFinite());
path.reset();
REPORTER_ASSERT(reporter, path.isFinite());
path.addRect(SkRect::MakeWH(50, 100));
REPORTER_ASSERT(reporter, path.isFinite());
}
static void build_big_path(SkPath* path, bool reducedCase) {
if (reducedCase) {
path->moveTo(577330, 1971.72f);
path->cubicTo(10.7082f, -116.596f, 262.057f, 45.6468f, 294.694f, 1.96237f);
} else {
path->moveTo(60.1631f, 7.70567f);
path->quadTo(60.1631f, 7.70567f, 0.99474f, 0.901199f);
path->lineTo(577379, 1977.77f);
path->quadTo(577364, 1979.57f, 577325, 1980.26f);
path->quadTo(577286, 1980.95f, 577245, 1980.13f);
path->quadTo(577205, 1979.3f, 577187, 1977.45f);
path->quadTo(577168, 1975.6f, 577183, 1973.8f);
path->quadTo(577198, 1972, 577238, 1971.31f);
path->quadTo(577277, 1970.62f, 577317, 1971.45f);
path->quadTo(577330, 1971.72f, 577341, 1972.11f);
path->cubicTo(10.7082f, -116.596f, 262.057f, 45.6468f, 294.694f, 1.96237f);
path->moveTo(306.718f, -32.912f);
path->cubicTo(30.531f, 10.0005f, 1502.47f, 13.2804f, 84.3088f, 9.99601f);
}
}
static void test_clipped_cubic() {
SkAutoTUnref<SkSurface> surface(new_surface(640, 480));
// This path used to assert, because our cubic-chopping code incorrectly
// moved control points after the chop. This test should be run in SK_DEBUG
// mode to ensure that we no long assert.
SkPath path;
for (int doReducedCase = 0; doReducedCase <= 1; ++doReducedCase) {
build_big_path(&path, SkToBool(doReducedCase));
SkPaint paint;
for (int doAA = 0; doAA <= 1; ++doAA) {
paint.setAntiAlias(SkToBool(doAA));
surface->getCanvas()->drawPath(path, paint);
}
}
}
// Inspired by http://ie.microsoft.com/testdrive/Performance/Chalkboard/
// which triggered an assert, from a tricky cubic. This test replicates that
// example, so we can ensure that we handle it (in SkEdge.cpp), and don't
// assert in the SK_DEBUG build.
static void test_tricky_cubic() {
const SkPoint pts[] = {
{ SkDoubleToScalar(18.8943768), SkDoubleToScalar(129.121277) },
{ SkDoubleToScalar(18.8937435), SkDoubleToScalar(129.121689) },
{ SkDoubleToScalar(18.8950119), SkDoubleToScalar(129.120422) },
{ SkDoubleToScalar(18.5030727), SkDoubleToScalar(129.13121) },
};
SkPath path;
path.moveTo(pts[0]);
path.cubicTo(pts[1], pts[2], pts[3]);
SkPaint paint;
paint.setAntiAlias(true);
SkSurface* surface = new_surface(19, 130);
surface->getCanvas()->drawPath(path, paint);
surface->unref();
}
// Inspired by http://code.google.com/p/chromium/issues/detail?id=141651
//
static void test_isfinite_after_transform(skiatest::Reporter* reporter) {
SkPath path;
path.quadTo(157, 366, 286, 208);
path.arcTo(37, 442, 315, 163, 957494590897113.0f);
SkMatrix matrix;
matrix.setScale(1000*1000, 1000*1000);
// Be sure that path::transform correctly updates isFinite and the bounds
// if the transformation overflows. The previous bug was that isFinite was
// set to true in this case, but the bounds were not set to empty (which
// they should be).
while (path.isFinite()) {
REPORTER_ASSERT(reporter, path.getBounds().isFinite());
REPORTER_ASSERT(reporter, !path.getBounds().isEmpty());
path.transform(matrix);
}
REPORTER_ASSERT(reporter, path.getBounds().isEmpty());
matrix.setTranslate(SK_Scalar1, SK_Scalar1);
path.transform(matrix);
// we need to still be non-finite
REPORTER_ASSERT(reporter, !path.isFinite());
REPORTER_ASSERT(reporter, path.getBounds().isEmpty());
}
static void add_corner_arc(SkPath* path, const SkRect& rect,
SkScalar xIn, SkScalar yIn,
int startAngle)
{
SkScalar rx = SkMinScalar(rect.width(), xIn);
SkScalar ry = SkMinScalar(rect.height(), yIn);
SkRect arcRect;
arcRect.set(-rx, -ry, rx, ry);
switch (startAngle) {
case 0:
arcRect.offset(rect.fRight - arcRect.fRight, rect.fBottom - arcRect.fBottom);
break;
case 90:
arcRect.offset(rect.fLeft - arcRect.fLeft, rect.fBottom - arcRect.fBottom);
break;
case 180:
arcRect.offset(rect.fLeft - arcRect.fLeft, rect.fTop - arcRect.fTop);
break;
case 270:
arcRect.offset(rect.fRight - arcRect.fRight, rect.fTop - arcRect.fTop);
break;
default:
break;
}
path->arcTo(arcRect, SkIntToScalar(startAngle), SkIntToScalar(90), false);
}
static void make_arb_round_rect(SkPath* path, const SkRect& r,
SkScalar xCorner, SkScalar yCorner) {
// we are lazy here and use the same x & y for each corner
add_corner_arc(path, r, xCorner, yCorner, 270);
add_corner_arc(path, r, xCorner, yCorner, 0);
add_corner_arc(path, r, xCorner, yCorner, 90);
add_corner_arc(path, r, xCorner, yCorner, 180);
path->close();
}
// Chrome creates its own round rects with each corner possibly being different.
// Performance will suffer if they are not convex.
// Note: PathBench::ArbRoundRectBench performs almost exactly
// the same test (but with drawing)
static void test_arb_round_rect_is_convex(skiatest::Reporter* reporter) {
SkRandom rand;
SkRect r;
for (int i = 0; i < 5000; ++i) {
SkScalar size = rand.nextUScalar1() * 30;
if (size < SK_Scalar1) {
continue;
}
r.fLeft = rand.nextUScalar1() * 300;
r.fTop = rand.nextUScalar1() * 300;
r.fRight = r.fLeft + 2 * size;
r.fBottom = r.fTop + 2 * size;
SkPath temp;
make_arb_round_rect(&temp, r, r.width() / 10, r.height() / 15);
REPORTER_ASSERT(reporter, temp.isConvex());
}
}
// Chrome will sometimes create a 0 radius round rect. The degenerate
// quads prevent the path from being converted to a rect
// Note: PathBench::ArbRoundRectBench performs almost exactly
// the same test (but with drawing)
static void test_arb_zero_rad_round_rect_is_rect(skiatest::Reporter* reporter) {
SkRandom rand;
SkRect r;
for (int i = 0; i < 5000; ++i) {
SkScalar size = rand.nextUScalar1() * 30;
if (size < SK_Scalar1) {
continue;
}
r.fLeft = rand.nextUScalar1() * 300;
r.fTop = rand.nextUScalar1() * 300;
r.fRight = r.fLeft + 2 * size;
r.fBottom = r.fTop + 2 * size;
SkPath temp;
make_arb_round_rect(&temp, r, 0, 0);
SkRect result;
REPORTER_ASSERT(reporter, temp.isRect(&result));
REPORTER_ASSERT(reporter, r == result);
}
}
static void test_rect_isfinite(skiatest::Reporter* reporter) {
const SkScalar inf = SK_ScalarInfinity;
const SkScalar nan = SK_ScalarNaN;
SkRect r;
r.setEmpty();
REPORTER_ASSERT(reporter, r.isFinite());
r.set(0, 0, inf, -inf);
REPORTER_ASSERT(reporter, !r.isFinite());
r.set(0, 0, nan, 0);
REPORTER_ASSERT(reporter, !r.isFinite());
SkPoint pts[] = {
{ 0, 0 },
{ SK_Scalar1, 0 },
{ 0, SK_Scalar1 },
};
bool isFine = r.setBoundsCheck(pts, 3);
REPORTER_ASSERT(reporter, isFine);
REPORTER_ASSERT(reporter, !r.isEmpty());
pts[1].set(inf, 0);
isFine = r.setBoundsCheck(pts, 3);
REPORTER_ASSERT(reporter, !isFine);
REPORTER_ASSERT(reporter, r.isEmpty());
pts[1].set(nan, 0);
isFine = r.setBoundsCheck(pts, 3);
REPORTER_ASSERT(reporter, !isFine);
REPORTER_ASSERT(reporter, r.isEmpty());
}
static void test_path_isfinite(skiatest::Reporter* reporter) {
const SkScalar inf = SK_ScalarInfinity;
const SkScalar negInf = SK_ScalarNegativeInfinity;
const SkScalar nan = SK_ScalarNaN;
SkPath path;
REPORTER_ASSERT(reporter, path.isFinite());
path.reset();
REPORTER_ASSERT(reporter, path.isFinite());
path.reset();
path.moveTo(SK_Scalar1, 0);
REPORTER_ASSERT(reporter, path.isFinite());
path.reset();
path.moveTo(inf, negInf);
REPORTER_ASSERT(reporter, !path.isFinite());
path.reset();
path.moveTo(nan, 0);
REPORTER_ASSERT(reporter, !path.isFinite());
}
static void test_isfinite(skiatest::Reporter* reporter) {
test_rect_isfinite(reporter);
test_path_isfinite(reporter);
}
// assert that we always
// start with a moveTo
// only have 1 moveTo
// only have Lines after that
// end with a single close
// only have (at most) 1 close
//
static void test_poly(skiatest::Reporter* reporter, const SkPath& path,
const SkPoint srcPts[], bool expectClose) {
SkPath::RawIter iter(path);
SkPoint pts[4];
bool firstTime = true;
bool foundClose = false;
for (;;) {
switch (iter.next(pts)) {
case SkPath::kMove_Verb:
REPORTER_ASSERT(reporter, firstTime);
REPORTER_ASSERT(reporter, pts[0] == srcPts[0]);
srcPts++;
firstTime = false;
break;
case SkPath::kLine_Verb:
REPORTER_ASSERT(reporter, !firstTime);
REPORTER_ASSERT(reporter, pts[1] == srcPts[0]);
srcPts++;
break;
case SkPath::kQuad_Verb:
REPORTER_ASSERT(reporter, !"unexpected quad verb");
break;
case SkPath::kCubic_Verb:
REPORTER_ASSERT(reporter, !"unexpected cubic verb");
break;
case SkPath::kClose_Verb:
REPORTER_ASSERT(reporter, !firstTime);
REPORTER_ASSERT(reporter, !foundClose);
REPORTER_ASSERT(reporter, expectClose);
foundClose = true;
break;
case SkPath::kDone_Verb:
goto DONE;
}
}
DONE:
REPORTER_ASSERT(reporter, foundClose == expectClose);
}
static void test_addPoly(skiatest::Reporter* reporter) {
SkPoint pts[32];
SkRandom rand;
for (size_t i = 0; i < SK_ARRAY_COUNT(pts); ++i) {
pts[i].fX = rand.nextSScalar1();
pts[i].fY = rand.nextSScalar1();
}
for (int doClose = 0; doClose <= 1; ++doClose) {
for (size_t count = 1; count <= SK_ARRAY_COUNT(pts); ++count) {
SkPath path;
path.addPoly(pts, count, SkToBool(doClose));
test_poly(reporter, path, pts, SkToBool(doClose));
}
}
}
static void test_strokerec(skiatest::Reporter* reporter) {
SkStrokeRec rec(SkStrokeRec::kFill_InitStyle);
REPORTER_ASSERT(reporter, rec.isFillStyle());
rec.setHairlineStyle();
REPORTER_ASSERT(reporter, rec.isHairlineStyle());
rec.setStrokeStyle(SK_Scalar1, false);
REPORTER_ASSERT(reporter, SkStrokeRec::kStroke_Style == rec.getStyle());
rec.setStrokeStyle(SK_Scalar1, true);
REPORTER_ASSERT(reporter, SkStrokeRec::kStrokeAndFill_Style == rec.getStyle());
rec.setStrokeStyle(0, false);
REPORTER_ASSERT(reporter, SkStrokeRec::kHairline_Style == rec.getStyle());
rec.setStrokeStyle(0, true);
REPORTER_ASSERT(reporter, SkStrokeRec::kFill_Style == rec.getStyle());
}
// Set this for paths that don't have a consistent direction such as a bowtie.
// (cheapComputeDirection is not expected to catch these.)
static const SkPath::Direction kDontCheckDir = static_cast<SkPath::Direction>(-1);
static void check_direction(skiatest::Reporter* reporter, const SkPath& path,
SkPath::Direction expected) {
if (expected == kDontCheckDir) {
return;
}
SkPath copy(path); // we make a copy so that we don't cache the result on the passed in path.
SkPath::Direction dir;
if (copy.cheapComputeDirection(&dir)) {
REPORTER_ASSERT(reporter, dir == expected);
} else {
REPORTER_ASSERT(reporter, SkPath::kUnknown_Direction == expected);
}
}
static void test_direction(skiatest::Reporter* reporter) {
size_t i;
SkPath path;
REPORTER_ASSERT(reporter, !path.cheapComputeDirection(NULL));
REPORTER_ASSERT(reporter, !path.cheapIsDirection(SkPath::kCW_Direction));
REPORTER_ASSERT(reporter, !path.cheapIsDirection(SkPath::kCCW_Direction));
REPORTER_ASSERT(reporter, path.cheapIsDirection(SkPath::kUnknown_Direction));
static const char* gDegen[] = {
"M 10 10",
"M 10 10 M 20 20",
"M 10 10 L 20 20",
"M 10 10 L 10 10 L 10 10",
"M 10 10 Q 10 10 10 10",
"M 10 10 C 10 10 10 10 10 10",
};
for (i = 0; i < SK_ARRAY_COUNT(gDegen); ++i) {
path.reset();
bool valid = SkParsePath::FromSVGString(gDegen[i], &path);
REPORTER_ASSERT(reporter, valid);
REPORTER_ASSERT(reporter, !path.cheapComputeDirection(NULL));
}
static const char* gCW[] = {
"M 10 10 L 10 10 Q 20 10 20 20",
"M 10 10 C 20 10 20 20 20 20",
"M 20 10 Q 20 20 30 20 L 10 20", // test double-back at y-max
// rect with top two corners replaced by cubics with identical middle
// control points
"M 10 10 C 10 0 10 0 20 0 L 40 0 C 50 0 50 0 50 10",
"M 20 10 L 0 10 Q 10 10 20 0", // left, degenerate serif
};
for (i = 0; i < SK_ARRAY_COUNT(gCW); ++i) {
path.reset();
bool valid = SkParsePath::FromSVGString(gCW[i], &path);
REPORTER_ASSERT(reporter, valid);
check_direction(reporter, path, SkPath::kCW_Direction);
}
static const char* gCCW[] = {
"M 10 10 L 10 10 Q 20 10 20 -20",
"M 10 10 C 20 10 20 -20 20 -20",
"M 20 10 Q 20 20 10 20 L 30 20", // test double-back at y-max
// rect with top two corners replaced by cubics with identical middle
// control points
"M 50 10 C 50 0 50 0 40 0 L 20 0 C 10 0 10 0 10 10",
"M 10 10 L 30 10 Q 20 10 10 0", // right, degenerate serif
};
for (i = 0; i < SK_ARRAY_COUNT(gCCW); ++i) {
path.reset();
bool valid = SkParsePath::FromSVGString(gCCW[i], &path);
REPORTER_ASSERT(reporter, valid);
check_direction(reporter, path, SkPath::kCCW_Direction);
}
// Test two donuts, each wound a different direction. Only the outer contour
// determines the cheap direction
path.reset();
path.addCircle(0, 0, SkIntToScalar(2), SkPath::kCW_Direction);
path.addCircle(0, 0, SkIntToScalar(1), SkPath::kCCW_Direction);
check_direction(reporter, path, SkPath::kCW_Direction);
path.reset();
path.addCircle(0, 0, SkIntToScalar(1), SkPath::kCW_Direction);
path.addCircle(0, 0, SkIntToScalar(2), SkPath::kCCW_Direction);
check_direction(reporter, path, SkPath::kCCW_Direction);
#ifdef SK_SCALAR_IS_FLOAT
// triangle with one point really far from the origin.
path.reset();
// the first point is roughly 1.05e10, 1.05e10
path.moveTo(SkFloatToScalar(SkBits2Float(0x501c7652)), SkFloatToScalar(SkBits2Float(0x501c7652)));
path.lineTo(110 * SK_Scalar1, -10 * SK_Scalar1);
path.lineTo(-10 * SK_Scalar1, 60 * SK_Scalar1);
check_direction(reporter, path, SkPath::kCCW_Direction);
#endif
}
static void add_rect(SkPath* path, const SkRect& r) {
path->moveTo(r.fLeft, r.fTop);
path->lineTo(r.fRight, r.fTop);
path->lineTo(r.fRight, r.fBottom);
path->lineTo(r.fLeft, r.fBottom);
path->close();
}
static void test_bounds(skiatest::Reporter* reporter) {
static const SkRect rects[] = {
{ SkIntToScalar(10), SkIntToScalar(160), SkIntToScalar(610), SkIntToScalar(160) },
{ SkIntToScalar(610), SkIntToScalar(160), SkIntToScalar(610), SkIntToScalar(199) },
{ SkIntToScalar(10), SkIntToScalar(198), SkIntToScalar(610), SkIntToScalar(199) },
{ SkIntToScalar(10), SkIntToScalar(160), SkIntToScalar(10), SkIntToScalar(199) },
};
SkPath path0, path1;
for (size_t i = 0; i < SK_ARRAY_COUNT(rects); ++i) {
path0.addRect(rects[i]);
add_rect(&path1, rects[i]);
}
REPORTER_ASSERT(reporter, path0.getBounds() == path1.getBounds());
}
static void stroke_cubic(const SkPoint pts[4]) {
SkPath path;
path.moveTo(pts[0]);
path.cubicTo(pts[1], pts[2], pts[3]);
SkPaint paint;
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(SK_Scalar1 * 2);
SkPath fill;
paint.getFillPath(path, &fill);
}
// just ensure this can run w/o any SkASSERTS firing in the debug build
// we used to assert due to differences in how we determine a degenerate vector
// but that was fixed with the introduction of SkPoint::CanNormalize
static void stroke_tiny_cubic() {
SkPoint p0[] = {
{ 372.0f, 92.0f },
{ 372.0f, 92.0f },
{ 372.0f, 92.0f },
{ 372.0f, 92.0f },
};
stroke_cubic(p0);
SkPoint p1[] = {
{ 372.0f, 92.0f },
{ 372.0007f, 92.000755f },
{ 371.99927f, 92.003922f },
{ 371.99826f, 92.003899f },
};
stroke_cubic(p1);
}
static void check_close(skiatest::Reporter* reporter, const SkPath& path) {
for (int i = 0; i < 2; ++i) {
SkPath::Iter iter(path, SkToBool(i));
SkPoint mv;
SkPoint pts[4];
SkPath::Verb v;
int nMT = 0;
int nCL = 0;
mv.set(0, 0);
while (SkPath::kDone_Verb != (v = iter.next(pts))) {
switch (v) {
case SkPath::kMove_Verb:
mv = pts[0];
++nMT;
break;
case SkPath::kClose_Verb:
REPORTER_ASSERT(reporter, mv == pts[0]);
++nCL;
break;
default:
break;
}
}
// if we force a close on the interator we should have a close
// for every moveTo
REPORTER_ASSERT(reporter, !i || nMT == nCL);
}
}
static void test_close(skiatest::Reporter* reporter) {
SkPath closePt;
closePt.moveTo(0, 0);
closePt.close();
check_close(reporter, closePt);
SkPath openPt;
openPt.moveTo(0, 0);
check_close(reporter, openPt);
SkPath empty;
check_close(reporter, empty);
empty.close();
check_close(reporter, empty);
SkPath rect;
rect.addRect(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1, 10*SK_Scalar1);
check_close(reporter, rect);
rect.close();
check_close(reporter, rect);
SkPath quad;
quad.quadTo(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1, 10*SK_Scalar1);
check_close(reporter, quad);
quad.close();
check_close(reporter, quad);
SkPath cubic;
quad.cubicTo(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1,
10*SK_Scalar1, 20 * SK_Scalar1, 20*SK_Scalar1);
check_close(reporter, cubic);
cubic.close();
check_close(reporter, cubic);
SkPath line;
line.moveTo(SK_Scalar1, SK_Scalar1);
line.lineTo(10 * SK_Scalar1, 10*SK_Scalar1);
check_close(reporter, line);
line.close();
check_close(reporter, line);
SkPath rect2;
rect2.addRect(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1, 10*SK_Scalar1);
rect2.close();
rect2.addRect(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1, 10*SK_Scalar1);
check_close(reporter, rect2);
rect2.close();
check_close(reporter, rect2);
SkPath oval3;
oval3.addOval(SkRect::MakeWH(SK_Scalar1*100,SK_Scalar1*100));
oval3.close();
oval3.addOval(SkRect::MakeWH(SK_Scalar1*200,SK_Scalar1*200));
check_close(reporter, oval3);
oval3.close();
check_close(reporter, oval3);
SkPath moves;
moves.moveTo(SK_Scalar1, SK_Scalar1);
moves.moveTo(5 * SK_Scalar1, SK_Scalar1);
moves.moveTo(SK_Scalar1, 10 * SK_Scalar1);
moves.moveTo(10 *SK_Scalar1, SK_Scalar1);
check_close(reporter, moves);
stroke_tiny_cubic();
}
static void check_convexity(skiatest::Reporter* reporter, const SkPath& path,
SkPath::Convexity expected) {
SkPath copy(path); // we make a copy so that we don't cache the result on the passed in path.
SkPath::Convexity c = copy.getConvexity();
REPORTER_ASSERT(reporter, c == expected);
}
static void test_convexity2(skiatest::Reporter* reporter) {
SkPath pt;
pt.moveTo(0, 0);
pt.close();
check_convexity(reporter, pt, SkPath::kConvex_Convexity);
check_direction(reporter, pt, SkPath::kUnknown_Direction);
SkPath line;
line.moveTo(12*SK_Scalar1, 20*SK_Scalar1);
line.lineTo(-12*SK_Scalar1, -20*SK_Scalar1);
line.close();
check_convexity(reporter, line, SkPath::kConvex_Convexity);
check_direction(reporter, line, SkPath::kUnknown_Direction);
SkPath triLeft;
triLeft.moveTo(0, 0);
triLeft.lineTo(SK_Scalar1, 0);
triLeft.lineTo(SK_Scalar1, SK_Scalar1);
triLeft.close();
check_convexity(reporter, triLeft, SkPath::kConvex_Convexity);
check_direction(reporter, triLeft, SkPath::kCW_Direction);
SkPath triRight;
triRight.moveTo(0, 0);
triRight.lineTo(-SK_Scalar1, 0);
triRight.lineTo(SK_Scalar1, SK_Scalar1);
triRight.close();
check_convexity(reporter, triRight, SkPath::kConvex_Convexity);
check_direction(reporter, triRight, SkPath::kCCW_Direction);
SkPath square;
square.moveTo(0, 0);
square.lineTo(SK_Scalar1, 0);
square.lineTo(SK_Scalar1, SK_Scalar1);
square.lineTo(0, SK_Scalar1);
square.close();
check_convexity(reporter, square, SkPath::kConvex_Convexity);
check_direction(reporter, square, SkPath::kCW_Direction);
SkPath redundantSquare;
redundantSquare.moveTo(0, 0);
redundantSquare.lineTo(0, 0);
redundantSquare.lineTo(0, 0);
redundantSquare.lineTo(SK_Scalar1, 0);
redundantSquare.lineTo(SK_Scalar1, 0);
redundantSquare.lineTo(SK_Scalar1, 0);
redundantSquare.lineTo(SK_Scalar1, SK_Scalar1);
redundantSquare.lineTo(SK_Scalar1, SK_Scalar1);
redundantSquare.lineTo(SK_Scalar1, SK_Scalar1);
redundantSquare.lineTo(0, SK_Scalar1);
redundantSquare.lineTo(0, SK_Scalar1);
redundantSquare.lineTo(0, SK_Scalar1);
redundantSquare.close();
check_convexity(reporter, redundantSquare, SkPath::kConvex_Convexity);
check_direction(reporter, redundantSquare, SkPath::kCW_Direction);
SkPath bowTie;
bowTie.moveTo(0, 0);
bowTie.lineTo(0, 0);
bowTie.lineTo(0, 0);
bowTie.lineTo(SK_Scalar1, SK_Scalar1);
bowTie.lineTo(SK_Scalar1, SK_Scalar1);
bowTie.lineTo(SK_Scalar1, SK_Scalar1);
bowTie.lineTo(SK_Scalar1, 0);
bowTie.lineTo(SK_Scalar1, 0);
bowTie.lineTo(SK_Scalar1, 0);
bowTie.lineTo(0, SK_Scalar1);
bowTie.lineTo(0, SK_Scalar1);
bowTie.lineTo(0, SK_Scalar1);
bowTie.close();
check_convexity(reporter, bowTie, SkPath::kConcave_Convexity);
check_direction(reporter, bowTie, kDontCheckDir);
SkPath spiral;
spiral.moveTo(0, 0);
spiral.lineTo(100*SK_Scalar1, 0);
spiral.lineTo(100*SK_Scalar1, 100*SK_Scalar1);
spiral.lineTo(0, 100*SK_Scalar1);
spiral.lineTo(0, 50*SK_Scalar1);
spiral.lineTo(50*SK_Scalar1, 50*SK_Scalar1);
spiral.lineTo(50*SK_Scalar1, 75*SK_Scalar1);
spiral.close();
check_convexity(reporter, spiral, SkPath::kConcave_Convexity);
check_direction(reporter, spiral, kDontCheckDir);
SkPath dent;
dent.moveTo(0, 0);
dent.lineTo(100*SK_Scalar1, 100*SK_Scalar1);
dent.lineTo(0, 100*SK_Scalar1);
dent.lineTo(-50*SK_Scalar1, 200*SK_Scalar1);
dent.lineTo(-200*SK_Scalar1, 100*SK_Scalar1);
dent.close();
check_convexity(reporter, dent, SkPath::kConcave_Convexity);
check_direction(reporter, dent, SkPath::kCW_Direction);
}
static void check_convex_bounds(skiatest::Reporter* reporter, const SkPath& p,
const SkRect& bounds) {
REPORTER_ASSERT(reporter, p.isConvex());
REPORTER_ASSERT(reporter, p.getBounds() == bounds);
SkPath p2(p);
REPORTER_ASSERT(reporter, p2.isConvex());
REPORTER_ASSERT(reporter, p2.getBounds() == bounds);
SkPath other;
other.swap(p2);
REPORTER_ASSERT(reporter, other.isConvex());
REPORTER_ASSERT(reporter, other.getBounds() == bounds);
}
static void setFromString(SkPath* path, const char str[]) {
bool first = true;
while (str) {
SkScalar x, y;
str = SkParse::FindScalar(str, &x);
if (NULL == str) {
break;
}
str = SkParse::FindScalar(str, &y);
SkASSERT(str);
if (first) {
path->moveTo(x, y);
first = false;
} else {
path->lineTo(x, y);
}
}
}
static void test_convexity(skiatest::Reporter* reporter) {
SkPath path;
check_convexity(reporter, path, SkPath::kConvex_Convexity);
path.addCircle(0, 0, SkIntToScalar(10));
check_convexity(reporter, path, SkPath::kConvex_Convexity);
path.addCircle(0, 0, SkIntToScalar(10)); // 2nd circle
check_convexity(reporter, path, SkPath::kConcave_Convexity);
path.reset();
path.addRect(0, 0, SkIntToScalar(10), SkIntToScalar(10), SkPath::kCCW_Direction);
check_convexity(reporter, path, SkPath::kConvex_Convexity);
REPORTER_ASSERT(reporter, path.cheapIsDirection(SkPath::kCCW_Direction));
path.reset();
path.addRect(0, 0, SkIntToScalar(10), SkIntToScalar(10), SkPath::kCW_Direction);
check_convexity(reporter, path, SkPath::kConvex_Convexity);
REPORTER_ASSERT(reporter, path.cheapIsDirection(SkPath::kCW_Direction));
static const struct {
const char* fPathStr;
SkPath::Convexity fExpectedConvexity;
SkPath::Direction fExpectedDirection;
} gRec[] = {
{ "", SkPath::kConvex_Convexity, SkPath::kUnknown_Direction },
{ "0 0", SkPath::kConvex_Convexity, SkPath::kUnknown_Direction },
{ "0 0 10 10", SkPath::kConvex_Convexity, SkPath::kUnknown_Direction },
{ "0 0 10 10 20 20 0 0 10 10", SkPath::kConcave_Convexity, SkPath::kUnknown_Direction },
{ "0 0 10 10 10 20", SkPath::kConvex_Convexity, SkPath::kCW_Direction },
{ "0 0 10 10 10 0", SkPath::kConvex_Convexity, SkPath::kCCW_Direction },
{ "0 0 10 10 10 0 0 10", SkPath::kConcave_Convexity, kDontCheckDir },
{ "0 0 10 0 0 10 -10 -10", SkPath::kConcave_Convexity, SkPath::kCW_Direction },
};
for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); ++i) {
SkPath path;
setFromString(&path, gRec[i].fPathStr);
check_convexity(reporter, path, gRec[i].fExpectedConvexity);
check_direction(reporter, path, gRec[i].fExpectedDirection);
}
}
static void test_isLine(skiatest::Reporter* reporter) {
SkPath path;
SkPoint pts[2];
const SkScalar value = SkIntToScalar(5);
REPORTER_ASSERT(reporter, !path.isLine(NULL));
// set some non-zero values
pts[0].set(value, value);
pts[1].set(value, value);
REPORTER_ASSERT(reporter, !path.isLine(pts));
// check that pts was untouched
REPORTER_ASSERT(reporter, pts[0].equals(value, value));
REPORTER_ASSERT(reporter, pts[1].equals(value, value));
const SkScalar moveX = SkIntToScalar(1);
const SkScalar moveY = SkIntToScalar(2);
SkASSERT(value != moveX && value != moveY);
path.moveTo(moveX, moveY);
REPORTER_ASSERT(reporter, !path.isLine(NULL));
REPORTER_ASSERT(reporter, !path.isLine(pts));
// check that pts was untouched
REPORTER_ASSERT(reporter, pts[0].equals(value, value));
REPORTER_ASSERT(reporter, pts[1].equals(value, value));
const SkScalar lineX = SkIntToScalar(2);
const SkScalar lineY = SkIntToScalar(2);
SkASSERT(value != lineX && value != lineY);
path.lineTo(lineX, lineY);
REPORTER_ASSERT(reporter, path.isLine(NULL));
REPORTER_ASSERT(reporter, !pts[0].equals(moveX, moveY));
REPORTER_ASSERT(reporter, !pts[1].equals(lineX, lineY));
REPORTER_ASSERT(reporter, path.isLine(pts));
REPORTER_ASSERT(reporter, pts[0].equals(moveX, moveY));
REPORTER_ASSERT(reporter, pts[1].equals(lineX, lineY));
path.lineTo(0, 0); // too many points/verbs
REPORTER_ASSERT(reporter, !path.isLine(NULL));
REPORTER_ASSERT(reporter, !path.isLine(pts));
REPORTER_ASSERT(reporter, pts[0].equals(moveX, moveY));
REPORTER_ASSERT(reporter, pts[1].equals(lineX, lineY));
}
static void test_conservativelyContains(skiatest::Reporter* reporter) {
SkPath path;
// kBaseRect is used to construct most our test paths: a rect, a circle, and a round-rect.
static const SkRect kBaseRect = SkRect::MakeWH(SkIntToScalar(100), SkIntToScalar(100));
// A circle that bounds kBaseRect (with a significant amount of slop)
SkScalar circleR = SkMaxScalar(kBaseRect.width(), kBaseRect.height());
circleR = SkScalarMul(circleR, SkFloatToScalar(1.75f)) / 2;
static const SkPoint kCircleC = {kBaseRect.centerX(), kBaseRect.centerY()};
// round-rect radii
static const SkScalar kRRRadii[] = {SkIntToScalar(5), SkIntToScalar(3)};
static const struct SUPPRESS_VISIBILITY_WARNING {
SkRect fQueryRect;
bool fInRect;
bool fInCircle;
bool fInRR;
} kQueries[] = {
{kBaseRect, true, true, false},
// rect well inside of kBaseRect
{SkRect::MakeLTRB(kBaseRect.fLeft + SkFloatToScalar(0.25f)*kBaseRect.width(),
kBaseRect.fTop + SkFloatToScalar(0.25f)*kBaseRect.height(),
kBaseRect.fRight - SkFloatToScalar(0.25f)*kBaseRect.width(),
kBaseRect.fBottom - SkFloatToScalar(0.25f)*kBaseRect.height()),
true, true, true},
// rects with edges off by one from kBaseRect's edges
{SkRect::MakeXYWH(kBaseRect.fLeft, kBaseRect.fTop,
kBaseRect.width(), kBaseRect.height() + 1),
false, true, false},
{SkRect::MakeXYWH(kBaseRect.fLeft, kBaseRect.fTop,
kBaseRect.width() + 1, kBaseRect.height()),
false, true, false},
{SkRect::MakeXYWH(kBaseRect.fLeft, kBaseRect.fTop,
kBaseRect.width() + 1, kBaseRect.height() + 1),
false, true, false},
{SkRect::MakeXYWH(kBaseRect.fLeft - 1, kBaseRect.fTop,
kBaseRect.width(), kBaseRect.height()),
false, true, false},
{SkRect::MakeXYWH(kBaseRect.fLeft, kBaseRect.fTop - 1,
kBaseRect.width(), kBaseRect.height()),
false, true, false},
{SkRect::MakeXYWH(kBaseRect.fLeft - 1, kBaseRect.fTop,
kBaseRect.width() + 2, kBaseRect.height()),
false, true, false},
{SkRect::MakeXYWH(kBaseRect.fLeft, kBaseRect.fTop - 1,
kBaseRect.width() + 2, kBaseRect.height()),
false, true, false},
// zero-w/h rects at each corner of kBaseRect
{SkRect::MakeXYWH(kBaseRect.fLeft, kBaseRect.fTop, 0, 0), true, true, false},
{SkRect::MakeXYWH(kBaseRect.fRight, kBaseRect.fTop, 0, 0), true, true, false},
{SkRect::MakeXYWH(kBaseRect.fLeft, kBaseRect.fBottom, 0, 0), true, true, false},
{SkRect::MakeXYWH(kBaseRect.fRight, kBaseRect.fBottom, 0, 0), true, true, false},
// far away rect
{SkRect::MakeXYWH(10 * kBaseRect.fRight, 10 * kBaseRect.fBottom,
SkIntToScalar(10), SkIntToScalar(10)),
false, false, false},
// very large rect containing kBaseRect
{SkRect::MakeXYWH(kBaseRect.fLeft - 5 * kBaseRect.width(),
kBaseRect.fTop - 5 * kBaseRect.height(),
11 * kBaseRect.width(), 11 * kBaseRect.height()),
false, false, false},
// skinny rect that spans same y-range as kBaseRect
{SkRect::MakeXYWH(kBaseRect.centerX(), kBaseRect.fTop,
SkIntToScalar(1), kBaseRect.height()),
true, true, true},
// short rect that spans same x-range as kBaseRect
{SkRect::MakeXYWH(kBaseRect.fLeft, kBaseRect.centerY(), kBaseRect.width(), SkScalar(1)),
true, true, true},
// skinny rect that spans slightly larger y-range than kBaseRect
{SkRect::MakeXYWH(kBaseRect.centerX(), kBaseRect.fTop,
SkIntToScalar(1), kBaseRect.height() + 1),
false, true, false},
// short rect that spans slightly larger x-range than kBaseRect
{SkRect::MakeXYWH(kBaseRect.fLeft, kBaseRect.centerY(),
kBaseRect.width() + 1, SkScalar(1)),
false, true, false},
};
for (int inv = 0; inv < 4; ++inv) {
for (size_t q = 0; q < SK_ARRAY_COUNT(kQueries); ++q) {
SkRect qRect = kQueries[q].fQueryRect;
if (inv & 0x1) {
SkTSwap(qRect.fLeft, qRect.fRight);
}
if (inv & 0x2) {
SkTSwap(qRect.fTop, qRect.fBottom);
}
for (int d = 0; d < 2; ++d) {
SkPath::Direction dir = d ? SkPath::kCCW_Direction : SkPath::kCW_Direction;
path.reset();
path.addRect(kBaseRect, dir);
REPORTER_ASSERT(reporter, kQueries[q].fInRect ==
path.conservativelyContainsRect(qRect));
path.reset();
path.addCircle(kCircleC.fX, kCircleC.fY, circleR, dir);
REPORTER_ASSERT(reporter, kQueries[q].fInCircle ==
path.conservativelyContainsRect(qRect));
path.reset();
path.addRoundRect(kBaseRect, kRRRadii[0], kRRRadii[1], dir);
REPORTER_ASSERT(reporter, kQueries[q].fInRR ==
path.conservativelyContainsRect(qRect));
}
// Slightly non-convex shape, shouldn't contain any rects.
path.reset();
path.moveTo(0, 0);
path.lineTo(SkIntToScalar(50), SkFloatToScalar(0.05f));
path.lineTo(SkIntToScalar(100), 0);
path.lineTo(SkIntToScalar(100), SkIntToScalar(100));
path.lineTo(0, SkIntToScalar(100));
path.close();
REPORTER_ASSERT(reporter, !path.conservativelyContainsRect(qRect));
}
}
// make sure a minimal convex shape works, a right tri with edges along pos x and y axes.
path.reset();
path.moveTo(0, 0);
path.lineTo(SkIntToScalar(100), 0);
path.lineTo(0, SkIntToScalar(100));
// inside, on along top edge
REPORTER_ASSERT(reporter, path.conservativelyContainsRect(SkRect::MakeXYWH(SkIntToScalar(50), 0,
SkIntToScalar(10),
SkIntToScalar(10))));
// above
REPORTER_ASSERT(reporter, !path.conservativelyContainsRect(
SkRect::MakeXYWH(SkIntToScalar(50),
SkIntToScalar(-10),
SkIntToScalar(10),
SkIntToScalar(10))));
// to the left
REPORTER_ASSERT(reporter, !path.conservativelyContainsRect(SkRect::MakeXYWH(SkIntToScalar(-10),
SkIntToScalar(5),
SkIntToScalar(5),
SkIntToScalar(5))));
// outside the diagonal edge
REPORTER_ASSERT(reporter, !path.conservativelyContainsRect(SkRect::MakeXYWH(SkIntToScalar(10),
SkIntToScalar(200),
SkIntToScalar(20),
SkIntToScalar(5))));
}
// Simple isRect test is inline TestPath, below.
// test_isRect provides more extensive testing.
static void test_isRect(skiatest::Reporter* reporter) {
// passing tests (all moveTo / lineTo...
SkPoint r1[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}};
SkPoint r2[] = {{1, 0}, {1, 1}, {0, 1}, {0, 0}};
SkPoint r3[] = {{1, 1}, {0, 1}, {0, 0}, {1, 0}};
SkPoint r4[] = {{0, 1}, {0, 0}, {1, 0}, {1, 1}};
SkPoint r5[] = {{0, 0}, {0, 1}, {1, 1}, {1, 0}};
SkPoint r6[] = {{0, 1}, {1, 1}, {1, 0}, {0, 0}};
SkPoint r7[] = {{1, 1}, {1, 0}, {0, 0}, {0, 1}};
SkPoint r8[] = {{1, 0}, {0, 0}, {0, 1}, {1, 1}};
SkPoint r9[] = {{0, 1}, {1, 1}, {1, 0}, {0, 0}};
SkPoint ra[] = {{0, 0}, {0, .5f}, {0, 1}, {.5f, 1}, {1, 1}, {1, .5f},
{1, 0}, {.5f, 0}};
SkPoint rb[] = {{0, 0}, {.5f, 0}, {1, 0}, {1, .5f}, {1, 1}, {.5f, 1},
{0, 1}, {0, .5f}};
SkPoint rc[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {0, 0}};
SkPoint rd[] = {{0, 0}, {0, 1}, {1, 1}, {1, 0}, {0, 0}};
SkPoint re[] = {{0, 0}, {1, 0}, {1, 0}, {1, 1}, {0, 1}};
SkPoint rf[] = {{1, 0}, {8, 0}, {8, 8}, {0, 8}, {0, 0}};
// failing tests
SkPoint f1[] = {{0, 0}, {1, 0}, {1, 1}}; // too few points
SkPoint f2[] = {{0, 0}, {1, 1}, {0, 1}, {1, 0}}; // diagonal
SkPoint f3[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {0, 0}, {1, 0}}; // wraps
SkPoint f4[] = {{0, 0}, {1, 0}, {0, 0}, {1, 0}, {1, 1}, {0, 1}}; // backs up
SkPoint f5[] = {{0, 0}, {1, 0}, {1, 1}, {2, 0}}; // end overshoots
SkPoint f6[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {0, 2}}; // end overshoots
SkPoint f7[] = {{0, 0}, {1, 0}, {1, 1}, {0, 2}}; // end overshoots
SkPoint f8[] = {{0, 0}, {1, 0}, {1, 1}, {1, 0}}; // 'L'
SkPoint f9[] = {{1, 0}, {8, 0}, {8, 8}, {0, 8}, {0, 0}, {2, 0}}; // overlaps
SkPoint fa[] = {{1, 0}, {8, 0}, {8, 8}, {0, 8}, {0, -1}, {1, -1}}; // non colinear gap
SkPoint fb[] = {{1, 0}, {8, 0}, {8, 8}, {0, 8}, {0, 1}}; // falls short
// failing, no close
SkPoint c1[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}}; // close doesn't match
SkPoint c2[] = {{0, 0}, {1, 0}, {1, 2}, {0, 2}, {0, 1}}; // ditto
size_t testLen[] = {
sizeof(r1), sizeof(r2), sizeof(r3), sizeof(r4), sizeof(r5), sizeof(r6),
sizeof(r7), sizeof(r8), sizeof(r9), sizeof(ra), sizeof(rb), sizeof(rc),
sizeof(rd), sizeof(re), sizeof(rf),
sizeof(f1), sizeof(f2), sizeof(f3), sizeof(f4), sizeof(f5), sizeof(f6),
sizeof(f7), sizeof(f8), sizeof(f9), sizeof(fa), sizeof(fb),
sizeof(c1), sizeof(c2)
};
SkPoint* tests[] = {
r1, r2, r3, r4, r5, r6, r7, r8, r9, ra, rb, rc, rd, re, rf,
f1, f2, f3, f4, f5, f6, f7, f8, f9, fa, fb,
c1, c2
};
SkPoint* lastPass = rf;
SkPoint* lastClose = fb;
bool fail = false;
bool close = true;
const size_t testCount = sizeof(tests) / sizeof(tests[0]);
size_t index;
for (size_t testIndex = 0; testIndex < testCount; ++testIndex) {
SkPath path;
path.moveTo(tests[testIndex][0].fX, tests[testIndex][0].fY);
for (index = 1; index < testLen[testIndex] / sizeof(SkPoint); ++index) {
path.lineTo(tests[testIndex][index].fX, tests[testIndex][index].fY);
}
if (close) {
path.close();
}
REPORTER_ASSERT(reporter, fail ^ path.isRect(0));
REPORTER_ASSERT(reporter, fail ^ path.isRect(NULL, NULL));
if (!fail) {
SkRect computed, expected;
expected.set(tests[testIndex], testLen[testIndex] / sizeof(SkPoint));
REPORTER_ASSERT(reporter, path.isRect(&computed));
REPORTER_ASSERT(reporter, expected == computed);
bool isClosed;
SkPath::Direction direction, cheapDirection;
REPORTER_ASSERT(reporter, path.cheapComputeDirection(&cheapDirection));
REPORTER_ASSERT(reporter, path.isRect(&isClosed, &direction));
REPORTER_ASSERT(reporter, isClosed == close);
REPORTER_ASSERT(reporter, direction == cheapDirection);
} else {
SkRect computed;
computed.set(123, 456, 789, 1011);
REPORTER_ASSERT(reporter, !path.isRect(&computed));
REPORTER_ASSERT(reporter, computed.fLeft == 123 && computed.fTop == 456);
REPORTER_ASSERT(reporter, computed.fRight == 789 && computed.fBottom == 1011);
bool isClosed = (bool) -1;
SkPath::Direction direction = (SkPath::Direction) -1;
REPORTER_ASSERT(reporter, !path.isRect(&isClosed, &direction));
REPORTER_ASSERT(reporter, isClosed == (bool) -1);
REPORTER_ASSERT(reporter, direction == (SkPath::Direction) -1);
}
if (tests[testIndex] == lastPass) {
fail = true;
}
if (tests[testIndex] == lastClose) {
close = false;
}
}
// fail, close then line
SkPath path1;
path1.moveTo(r1[0].fX, r1[0].fY);
for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) {
path1.lineTo(r1[index].fX, r1[index].fY);
}
path1.close();
path1.lineTo(1, 0);
REPORTER_ASSERT(reporter, fail ^ path1.isRect(0));
// fail, move in the middle
path1.reset();
path1.moveTo(r1[0].fX, r1[0].fY);
for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) {
if (index == 2) {
path1.moveTo(1, .5f);
}
path1.lineTo(r1[index].fX, r1[index].fY);
}
path1.close();
REPORTER_ASSERT(reporter, fail ^ path1.isRect(0));
// fail, move on the edge
path1.reset();
for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) {
path1.moveTo(r1[index - 1].fX, r1[index - 1].fY);
path1.lineTo(r1[index].fX, r1[index].fY);
}
path1.close();
REPORTER_ASSERT(reporter, fail ^ path1.isRect(0));
// fail, quad
path1.reset();
path1.moveTo(r1[0].fX, r1[0].fY);
for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) {
if (index == 2) {
path1.quadTo(1, .5f, 1, .5f);
}
path1.lineTo(r1[index].fX, r1[index].fY);
}
path1.close();
REPORTER_ASSERT(reporter, fail ^ path1.isRect(0));
// fail, cubic
path1.reset();
path1.moveTo(r1[0].fX, r1[0].fY);
for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) {
if (index == 2) {
path1.cubicTo(1, .5f, 1, .5f, 1, .5f);
}
path1.lineTo(r1[index].fX, r1[index].fY);
}
path1.close();
REPORTER_ASSERT(reporter, fail ^ path1.isRect(0));
}
static void test_isNestedRects(skiatest::Reporter* reporter) {
// passing tests (all moveTo / lineTo...
SkPoint r1[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}};
SkPoint r2[] = {{1, 0}, {1, 1}, {0, 1}, {0, 0}};
SkPoint r3[] = {{1, 1}, {0, 1}, {0, 0}, {1, 0}};
SkPoint r4[] = {{0, 1}, {0, 0}, {1, 0}, {1, 1}};
SkPoint r5[] = {{0, 0}, {0, 1}, {1, 1}, {1, 0}};
SkPoint r6[] = {{0, 1}, {1, 1}, {1, 0}, {0, 0}};
SkPoint r7[] = {{1, 1}, {1, 0}, {0, 0}, {0, 1}};
SkPoint r8[] = {{1, 0}, {0, 0}, {0, 1}, {1, 1}};
SkPoint r9[] = {{0, 1}, {1, 1}, {1, 0}, {0, 0}};
SkPoint ra[] = {{0, 0}, {0, .5f}, {0, 1}, {.5f, 1}, {1, 1}, {1, .5f},
{1, 0}, {.5f, 0}};
SkPoint rb[] = {{0, 0}, {.5f, 0}, {1, 0}, {1, .5f}, {1, 1}, {.5f, 1},
{0, 1}, {0, .5f}};
SkPoint rc[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {0, 0}};
SkPoint rd[] = {{0, 0}, {0, 1}, {1, 1}, {1, 0}, {0, 0}};
SkPoint re[] = {{0, 0}, {1, 0}, {1, 0}, {1, 1}, {0, 1}};
// failing tests
SkPoint f1[] = {{0, 0}, {1, 0}, {1, 1}}; // too few points
SkPoint f2[] = {{0, 0}, {1, 1}, {0, 1}, {1, 0}}; // diagonal
SkPoint f3[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {0, 0}, {1, 0}}; // wraps
SkPoint f4[] = {{0, 0}, {1, 0}, {0, 0}, {1, 0}, {1, 1}, {0, 1}}; // backs up
SkPoint f5[] = {{0, 0}, {1, 0}, {1, 1}, {2, 0}}; // end overshoots
SkPoint f6[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {0, 2}}; // end overshoots
SkPoint f7[] = {{0, 0}, {1, 0}, {1, 1}, {0, 2}}; // end overshoots
SkPoint f8[] = {{0, 0}, {1, 0}, {1, 1}, {1, 0}}; // 'L'
// failing, no close
SkPoint c1[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}}; // close doesn't match
SkPoint c2[] = {{0, 0}, {1, 0}, {1, 2}, {0, 2}, {0, 1}}; // ditto
size_t testLen[] = {
sizeof(r1), sizeof(r2), sizeof(r3), sizeof(r4), sizeof(r5), sizeof(r6),
sizeof(r7), sizeof(r8), sizeof(r9), sizeof(ra), sizeof(rb), sizeof(rc),
sizeof(rd), sizeof(re),
sizeof(f1), sizeof(f2), sizeof(f3), sizeof(f4), sizeof(f5), sizeof(f6),
sizeof(f7), sizeof(f8),
sizeof(c1), sizeof(c2)
};
SkPoint* tests[] = {
r1, r2, r3, r4, r5, r6, r7, r8, r9, ra, rb, rc, rd, re,
f1, f2, f3, f4, f5, f6, f7, f8,
c1, c2
};
const SkPoint* lastPass = re;
const SkPoint* lastClose = f8;
const size_t testCount = sizeof(tests) / sizeof(tests[0]);
size_t index;
for (int rectFirst = 0; rectFirst <= 1; ++rectFirst) {
bool fail = false;
bool close = true;
for (size_t testIndex = 0; testIndex < testCount; ++testIndex) {
SkPath path;
if (rectFirst) {
path.addRect(-1, -1, 2, 2, SkPath::kCW_Direction);
}
path.moveTo(tests[testIndex][0].fX, tests[testIndex][0].fY);
for (index = 1; index < testLen[testIndex] / sizeof(SkPoint); ++index) {
path.lineTo(tests[testIndex][index].fX, tests[testIndex][index].fY);
}
if (close) {
path.close();
}
if (!rectFirst) {
path.addRect(-1, -1, 2, 2, SkPath::kCCW_Direction);
}
REPORTER_ASSERT(reporter, fail ^ path.isNestedRects(0));
if (!fail) {
SkRect expected[2], computed[2];
SkRect testBounds;
testBounds.set(tests[testIndex], testLen[testIndex] / sizeof(SkPoint));
expected[0] = SkRect::MakeLTRB(-1, -1, 2, 2);
expected[1] = testBounds;
REPORTER_ASSERT(reporter, path.isNestedRects(computed));
REPORTER_ASSERT(reporter, expected[0] == computed[0]);
REPORTER_ASSERT(reporter, expected[1] == computed[1]);
}
if (tests[testIndex] == lastPass) {
fail = true;
}
if (tests[testIndex] == lastClose) {
close = false;
}
}
// fail, close then line
SkPath path1;
if (rectFirst) {
path1.addRect(-1, -1, 2, 2, SkPath::kCW_Direction);
}
path1.moveTo(r1[0].fX, r1[0].fY);
for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) {
path1.lineTo(r1[index].fX, r1[index].fY);
}
path1.close();
path1.lineTo(1, 0);
if (!rectFirst) {
path1.addRect(-1, -1, 2, 2, SkPath::kCCW_Direction);
}
REPORTER_ASSERT(reporter, fail ^ path1.isNestedRects(0));
// fail, move in the middle
path1.reset();
if (rectFirst) {
path1.addRect(-1, -1, 2, 2, SkPath::kCW_Direction);
}
path1.moveTo(r1[0].fX, r1[0].fY);
for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) {
if (index == 2) {
path1.moveTo(1, .5f);
}
path1.lineTo(r1[index].fX, r1[index].fY);
}
path1.close();
if (!rectFirst) {
path1.addRect(-1, -1, 2, 2, SkPath::kCCW_Direction);
}
REPORTER_ASSERT(reporter, fail ^ path1.isNestedRects(0));
// fail, move on the edge
path1.reset();
if (rectFirst) {
path1.addRect(-1, -1, 2, 2, SkPath::kCW_Direction);
}
for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) {
path1.moveTo(r1[index - 1].fX, r1[index - 1].fY);
path1.lineTo(r1[index].fX, r1[index].fY);
}
path1.close();
if (!rectFirst) {
path1.addRect(-1, -1, 2, 2, SkPath::kCCW_Direction);
}
REPORTER_ASSERT(reporter, fail ^ path1.isNestedRects(0));
// fail, quad
path1.reset();
if (rectFirst) {
path1.addRect(-1, -1, 2, 2, SkPath::kCW_Direction);
}
path1.moveTo(r1[0].fX, r1[0].fY);
for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) {
if (index == 2) {
path1.quadTo(1, .5f, 1, .5f);
}
path1.lineTo(r1[index].fX, r1[index].fY);
}
path1.close();
if (!rectFirst) {
path1.addRect(-1, -1, 2, 2, SkPath::kCCW_Direction);
}
REPORTER_ASSERT(reporter, fail ^ path1.isNestedRects(0));
// fail, cubic
path1.reset();
if (rectFirst) {
path1.addRect(-1, -1, 2, 2, SkPath::kCW_Direction);
}
path1.moveTo(r1[0].fX, r1[0].fY);
for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) {
if (index == 2) {
path1.cubicTo(1, .5f, 1, .5f, 1, .5f);
}
path1.lineTo(r1[index].fX, r1[index].fY);
}
path1.close();
if (!rectFirst) {
path1.addRect(-1, -1, 2, 2, SkPath::kCCW_Direction);
}
REPORTER_ASSERT(reporter, fail ^ path1.isNestedRects(0));
// fail, not nested
path1.reset();
path1.addRect(1, 1, 3, 3, SkPath::kCW_Direction);
path1.addRect(2, 2, 4, 4, SkPath::kCW_Direction);
REPORTER_ASSERT(reporter, fail ^ path1.isNestedRects(0));
}
// pass, stroke rect
SkPath src, dst;
src.addRect(1, 1, 7, 7, SkPath::kCW_Direction);
SkPaint strokePaint;
strokePaint.setStyle(SkPaint::kStroke_Style);
strokePaint.setStrokeWidth(2);
strokePaint.getFillPath(src, &dst);
REPORTER_ASSERT(reporter, dst.isNestedRects(0));
}
static void write_and_read_back(skiatest::Reporter* reporter,
const SkPath& p) {
SkWriter32 writer(100);
writer.writePath(p);
size_t size = writer.size();
SkAutoMalloc storage(size);
writer.flatten(storage.get());
SkReader32 reader(storage.get(), size);
SkPath readBack;
REPORTER_ASSERT(reporter, readBack != p);
reader.readPath(&readBack);
REPORTER_ASSERT(reporter, readBack == p);
REPORTER_ASSERT(reporter, readBack.getConvexityOrUnknown() ==
p.getConvexityOrUnknown());
REPORTER_ASSERT(reporter, readBack.isOval(NULL) == p.isOval(NULL));
const SkRect& origBounds = p.getBounds();
const SkRect& readBackBounds = readBack.getBounds();
REPORTER_ASSERT(reporter, origBounds == readBackBounds);
}
static void test_flattening(skiatest::Reporter* reporter) {
SkPath p;
static const SkPoint pts[] = {
{ 0, 0 },
{ SkIntToScalar(10), SkIntToScalar(10) },
{ SkIntToScalar(20), SkIntToScalar(10) }, { SkIntToScalar(20), 0 },
{ 0, 0 }, { 0, SkIntToScalar(10) }, { SkIntToScalar(1), SkIntToScalar(10) }
};
p.moveTo(pts[0]);
p.lineTo(pts[1]);
p.quadTo(pts[2], pts[3]);
p.cubicTo(pts[4], pts[5], pts[6]);
write_and_read_back(reporter, p);
// create a buffer that should be much larger than the path so we don't
// kill our stack if writer goes too far.
char buffer[1024];
uint32_t size1 = p.writeToMemory(NULL);
uint32_t size2 = p.writeToMemory(buffer);
REPORTER_ASSERT(reporter, size1 == size2);
SkPath p2;
uint32_t size3 = p2.readFromMemory(buffer);
REPORTER_ASSERT(reporter, size1 == size3);
REPORTER_ASSERT(reporter, p == p2);
char buffer2[1024];
size3 = p2.writeToMemory(buffer2);
REPORTER_ASSERT(reporter, size1 == size3);
REPORTER_ASSERT(reporter, memcmp(buffer, buffer2, size1) == 0);
// test persistence of the oval flag & convexity
{
SkPath oval;
SkRect rect = SkRect::MakeWH(10, 10);
oval.addOval(rect);
write_and_read_back(reporter, oval);
}
}
static void test_transform(skiatest::Reporter* reporter) {
SkPath p, p1;
static const SkPoint pts[] = {
{ 0, 0 },
{ SkIntToScalar(10), SkIntToScalar(10) },
{ SkIntToScalar(20), SkIntToScalar(10) }, { SkIntToScalar(20), 0 },
{ 0, 0 }, { 0, SkIntToScalar(10) }, { SkIntToScalar(1), SkIntToScalar(10) }
};
p.moveTo(pts[0]);
p.lineTo(pts[1]);
p.quadTo(pts[2], pts[3]);
p.cubicTo(pts[4], pts[5], pts[6]);
SkMatrix matrix;
matrix.reset();
p.transform(matrix, &p1);
REPORTER_ASSERT(reporter, p == p1);
matrix.setScale(SK_Scalar1 * 2, SK_Scalar1 * 3);
p.transform(matrix, &p1);
SkPoint pts1[7];
int count = p1.getPoints(pts1, 7);
REPORTER_ASSERT(reporter, 7 == count);
for (int i = 0; i < count; ++i) {
SkPoint newPt = SkPoint::Make(pts[i].fX * 2, pts[i].fY * 3);
REPORTER_ASSERT(reporter, newPt == pts1[i]);
}
}
static void test_zero_length_paths(skiatest::Reporter* reporter) {
SkPath p;
uint8_t verbs[32];
struct SUPPRESS_VISIBILITY_WARNING zeroPathTestData {
const char* testPath;
const size_t numResultPts;
const SkRect resultBound;
const SkPath::Verb* resultVerbs;
const size_t numResultVerbs;
};
static const SkPath::Verb resultVerbs1[] = { SkPath::kMove_Verb };
static const SkPath::Verb resultVerbs2[] = { SkPath::kMove_Verb, SkPath::kMove_Verb };
static const SkPath::Verb resultVerbs3[] = { SkPath::kMove_Verb, SkPath::kClose_Verb };
static const SkPath::Verb resultVerbs4[] = { SkPath::kMove_Verb, SkPath::kClose_Verb, SkPath::kMove_Verb, SkPath::kClose_Verb };
static const SkPath::Verb resultVerbs5[] = { SkPath::kMove_Verb, SkPath::kLine_Verb };
static const SkPath::Verb resultVerbs6[] = { SkPath::kMove_Verb, SkPath::kLine_Verb, SkPath::kMove_Verb, SkPath::kLine_Verb };
static const SkPath::Verb resultVerbs7[] = { SkPath::kMove_Verb, SkPath::kLine_Verb, SkPath::kClose_Verb };
static const SkPath::Verb resultVerbs8[] = {
SkPath::kMove_Verb, SkPath::kLine_Verb, SkPath::kClose_Verb, SkPath::kMove_Verb, SkPath::kLine_Verb, SkPath::kClose_Verb
};
static const SkPath::Verb resultVerbs9[] = { SkPath::kMove_Verb, SkPath::kQuad_Verb };
static const SkPath::Verb resultVerbs10[] = { SkPath::kMove_Verb, SkPath::kQuad_Verb, SkPath::kMove_Verb, SkPath::kQuad_Verb };
static const SkPath::Verb resultVerbs11[] = { SkPath::kMove_Verb, SkPath::kQuad_Verb, SkPath::kClose_Verb };
static const SkPath::Verb resultVerbs12[] = {
SkPath::kMove_Verb, SkPath::kQuad_Verb, SkPath::kClose_Verb, SkPath::kMove_Verb, SkPath::kQuad_Verb, SkPath::kClose_Verb
};
static const SkPath::Verb resultVerbs13[] = { SkPath::kMove_Verb, SkPath::kCubic_Verb };
static const SkPath::Verb resultVerbs14[] = { SkPath::kMove_Verb, SkPath::kCubic_Verb, SkPath::kMove_Verb, SkPath::kCubic_Verb };
static const SkPath::Verb resultVerbs15[] = { SkPath::kMove_Verb, SkPath::kCubic_Verb, SkPath::kClose_Verb };
static const SkPath::Verb resultVerbs16[] = {
SkPath::kMove_Verb, SkPath::kCubic_Verb, SkPath::kClose_Verb, SkPath::kMove_Verb, SkPath::kCubic_Verb, SkPath::kClose_Verb
};
static const struct zeroPathTestData gZeroLengthTests[] = {
{ "M 1 1", 1, {0, 0, 0, 0}, resultVerbs1, SK_ARRAY_COUNT(resultVerbs1) },
{ "M 1 1 M 2 1", 2, {SK_Scalar1, SK_Scalar1, 2*SK_Scalar1, SK_Scalar1}, resultVerbs2, SK_ARRAY_COUNT(resultVerbs2) },
{ "M 1 1 z", 1, {0, 0, 0, 0}, resultVerbs3, SK_ARRAY_COUNT(resultVerbs3) },
{ "M 1 1 z M 2 1 z", 2, {SK_Scalar1, SK_Scalar1, 2*SK_Scalar1, SK_Scalar1}, resultVerbs4, SK_ARRAY_COUNT(resultVerbs4) },
{ "M 1 1 L 1 1", 2, {SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1}, resultVerbs5, SK_ARRAY_COUNT(resultVerbs5) },
{ "M 1 1 L 1 1 M 2 1 L 2 1", 4, {SK_Scalar1, SK_Scalar1, 2*SK_Scalar1, SK_Scalar1}, resultVerbs6, SK_ARRAY_COUNT(resultVerbs6) },
{ "M 1 1 L 1 1 z", 2, {SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1}, resultVerbs7, SK_ARRAY_COUNT(resultVerbs7) },
{ "M 1 1 L 1 1 z M 2 1 L 2 1 z", 4, {SK_Scalar1, SK_Scalar1, 2*SK_Scalar1, SK_Scalar1}, resultVerbs8, SK_ARRAY_COUNT(resultVerbs8) },
{ "M 1 1 Q 1 1 1 1", 3, {SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1}, resultVerbs9, SK_ARRAY_COUNT(resultVerbs9) },
{ "M 1 1 Q 1 1 1 1 M 2 1 Q 2 1 2 1", 6, {SK_Scalar1, SK_Scalar1, 2*SK_Scalar1, SK_Scalar1}, resultVerbs10, SK_ARRAY_COUNT(resultVerbs10) },
{ "M 1 1 Q 1 1 1 1 z", 3, {SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1}, resultVerbs11, SK_ARRAY_COUNT(resultVerbs11) },
{ "M 1 1 Q 1 1 1 1 z M 2 1 Q 2 1 2 1 z", 6, {SK_Scalar1, SK_Scalar1, 2*SK_Scalar1, SK_Scalar1}, resultVerbs12, SK_ARRAY_COUNT(resultVerbs12) },
{ "M 1 1 C 1 1 1 1 1 1", 4, {SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1}, resultVerbs13, SK_ARRAY_COUNT(resultVerbs13) },
{ "M 1 1 C 1 1 1 1 1 1 M 2 1 C 2 1 2 1 2 1", 8, {SK_Scalar1, SK_Scalar1, 2*SK_Scalar1, SK_Scalar1}, resultVerbs14,
SK_ARRAY_COUNT(resultVerbs14)
},
{ "M 1 1 C 1 1 1 1 1 1 z", 4, {SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1}, resultVerbs15, SK_ARRAY_COUNT(resultVerbs15) },
{ "M 1 1 C 1 1 1 1 1 1 z M 2 1 C 2 1 2 1 2 1 z", 8, {SK_Scalar1, SK_Scalar1, 2*SK_Scalar1, SK_Scalar1}, resultVerbs16,
SK_ARRAY_COUNT(resultVerbs16)
}
};
for (size_t i = 0; i < SK_ARRAY_COUNT(gZeroLengthTests); ++i) {
p.reset();
bool valid = SkParsePath::FromSVGString(gZeroLengthTests[i].testPath, &p);
REPORTER_ASSERT(reporter, valid);
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, gZeroLengthTests[i].numResultPts == (size_t)p.countPoints());
REPORTER_ASSERT(reporter, gZeroLengthTests[i].resultBound == p.getBounds());
REPORTER_ASSERT(reporter, gZeroLengthTests[i].numResultVerbs == (size_t)p.getVerbs(verbs, SK_ARRAY_COUNT(verbs)));
for (size_t j = 0; j < gZeroLengthTests[i].numResultVerbs; ++j) {
REPORTER_ASSERT(reporter, gZeroLengthTests[i].resultVerbs[j] == verbs[j]);
}
}
}
struct SegmentInfo {
SkPath fPath;
int fPointCount;
};
#define kCurveSegmentMask (SkPath::kQuad_SegmentMask | SkPath::kCubic_SegmentMask)
static void test_segment_masks(skiatest::Reporter* reporter) {
SkPath p, p2;
p.moveTo(0, 0);
p.quadTo(100, 100, 200, 200);
REPORTER_ASSERT(reporter, SkPath::kQuad_SegmentMask == p.getSegmentMasks());
REPORTER_ASSERT(reporter, !p.isEmpty());
p2 = p;
REPORTER_ASSERT(reporter, p2.getSegmentMasks() == p.getSegmentMasks());
p.cubicTo(100, 100, 200, 200, 300, 300);
REPORTER_ASSERT(reporter, kCurveSegmentMask == p.getSegmentMasks());
REPORTER_ASSERT(reporter, !p.isEmpty());
p2 = p;
REPORTER_ASSERT(reporter, p2.getSegmentMasks() == p.getSegmentMasks());
p.reset();
p.moveTo(0, 0);
p.cubicTo(100, 100, 200, 200, 300, 300);
REPORTER_ASSERT(reporter, SkPath::kCubic_SegmentMask == p.getSegmentMasks());
p2 = p;
REPORTER_ASSERT(reporter, p2.getSegmentMasks() == p.getSegmentMasks());
REPORTER_ASSERT(reporter, !p.isEmpty());
}
static void test_iter(skiatest::Reporter* reporter) {
SkPath p;
SkPoint pts[4];
// Test an iterator with no path
SkPath::Iter noPathIter;
REPORTER_ASSERT(reporter, noPathIter.next(pts) == SkPath::kDone_Verb);
// Test that setting an empty path works
noPathIter.setPath(p, false);
REPORTER_ASSERT(reporter, noPathIter.next(pts) == SkPath::kDone_Verb);
// Test that close path makes no difference for an empty path
noPathIter.setPath(p, true);
REPORTER_ASSERT(reporter, noPathIter.next(pts) == SkPath::kDone_Verb);
// Test an iterator with an initial empty path
SkPath::Iter iter(p, false);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb);
// Test that close path makes no difference
iter.setPath(p, true);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb);
struct iterTestData {
const char* testPath;
const bool forceClose;
const bool consumeDegenerates;
const size_t* numResultPtsPerVerb;
const SkPoint* resultPts;
const SkPath::Verb* resultVerbs;
const size_t numResultVerbs;
};
static const SkPath::Verb resultVerbs1[] = { SkPath::kDone_Verb };
static const SkPath::Verb resultVerbs2[] = {
SkPath::kMove_Verb, SkPath::kLine_Verb, SkPath::kLine_Verb, SkPath::kDone_Verb
};
static const SkPath::Verb resultVerbs3[] = {
SkPath::kMove_Verb, SkPath::kLine_Verb, SkPath::kLine_Verb, SkPath::kLine_Verb, SkPath::kClose_Verb, SkPath::kDone_Verb
};
static const SkPath::Verb resultVerbs4[] = {
SkPath::kMove_Verb, SkPath::kLine_Verb, SkPath::kMove_Verb, SkPath::kClose_Verb, SkPath::kDone_Verb
};
static const SkPath::Verb resultVerbs5[] = {
SkPath::kMove_Verb, SkPath::kLine_Verb, SkPath::kClose_Verb, SkPath::kMove_Verb, SkPath::kClose_Verb, SkPath::kDone_Verb
};
static const size_t resultPtsSizes1[] = { 0 };
static const size_t resultPtsSizes2[] = { 1, 2, 2, 0 };
static const size_t resultPtsSizes3[] = { 1, 2, 2, 2, 1, 0 };
static const size_t resultPtsSizes4[] = { 1, 2, 1, 1, 0 };
static const size_t resultPtsSizes5[] = { 1, 2, 1, 1, 1, 0 };
static const SkPoint* resultPts1 = 0;
static const SkPoint resultPts2[] = {
{ SK_Scalar1, 0 }, { SK_Scalar1, 0 }, { SK_Scalar1, SK_Scalar1 }, { SK_Scalar1, SK_Scalar1 }, { 0, SK_Scalar1 }
};
static const SkPoint resultPts3[] = {
{ SK_Scalar1, 0 }, { SK_Scalar1, 0 }, { SK_Scalar1, SK_Scalar1 }, { SK_Scalar1, SK_Scalar1 }, { 0, SK_Scalar1 },
{ 0, SK_Scalar1 }, { SK_Scalar1, 0 }, { SK_Scalar1, 0 }
};
static const SkPoint resultPts4[] = {
{ SK_Scalar1, 0 }, { SK_Scalar1, 0 }, { SK_Scalar1, 0 }, { 0, 0 }, { 0, 0 }
};
static const SkPoint resultPts5[] = {
{ SK_Scalar1, 0 }, { SK_Scalar1, 0 }, { SK_Scalar1, 0 }, { SK_Scalar1, 0 }, { 0, 0 }, { 0, 0 }
};
static const struct iterTestData gIterTests[] = {
{ "M 1 0", false, true, resultPtsSizes1, resultPts1, resultVerbs1, SK_ARRAY_COUNT(resultVerbs1) },
{ "M 1 0 M 2 0 M 3 0 M 4 0 M 5 0", false, true, resultPtsSizes1, resultPts1, resultVerbs1, SK_ARRAY_COUNT(resultVerbs1) },
{ "M 1 0 M 1 0 M 3 0 M 4 0 M 5 0", true, true, resultPtsSizes1, resultPts1, resultVerbs1, SK_ARRAY_COUNT(resultVerbs1) },
{ "z", false, true, resultPtsSizes1, resultPts1, resultVerbs1, SK_ARRAY_COUNT(resultVerbs1) },
{ "z", true, true, resultPtsSizes1, resultPts1, resultVerbs1, SK_ARRAY_COUNT(resultVerbs1) },
{ "z M 1 0 z z M 2 0 z M 3 0 M 4 0 z", false, true, resultPtsSizes1, resultPts1, resultVerbs1, SK_ARRAY_COUNT(resultVerbs1) },
{ "z M 1 0 z z M 2 0 z M 3 0 M 4 0 z", true, true, resultPtsSizes1, resultPts1, resultVerbs1, SK_ARRAY_COUNT(resultVerbs1) },
{ "M 1 0 L 1 1 L 0 1 M 0 0 z", false, true, resultPtsSizes2, resultPts2, resultVerbs2, SK_ARRAY_COUNT(resultVerbs2) },
{ "M 1 0 L 1 1 L 0 1 M 0 0 z", true, true, resultPtsSizes3, resultPts3, resultVerbs3, SK_ARRAY_COUNT(resultVerbs3) },
{ "M 1 0 L 1 0 M 0 0 z", false, true, resultPtsSizes1, resultPts1, resultVerbs1, SK_ARRAY_COUNT(resultVerbs1) },
{ "M 1 0 L 1 0 M 0 0 z", true, true, resultPtsSizes1, resultPts1, resultVerbs1, SK_ARRAY_COUNT(resultVerbs1) },
{ "M 1 0 L 1 0 M 0 0 z", false, false, resultPtsSizes4, resultPts4, resultVerbs4, SK_ARRAY_COUNT(resultVerbs4) },
{ "M 1 0 L 1 0 M 0 0 z", true, false, resultPtsSizes5, resultPts5, resultVerbs5, SK_ARRAY_COUNT(resultVerbs5) }
};
for (size_t i = 0; i < SK_ARRAY_COUNT(gIterTests); ++i) {
p.reset();
bool valid = SkParsePath::FromSVGString(gIterTests[i].testPath, &p);
REPORTER_ASSERT(reporter, valid);
iter.setPath(p, gIterTests[i].forceClose);
int j = 0, l = 0;
do {
REPORTER_ASSERT(reporter, iter.next(pts, gIterTests[i].consumeDegenerates) == gIterTests[i].resultVerbs[j]);
for (int k = 0; k < (int)gIterTests[i].numResultPtsPerVerb[j]; ++k) {
REPORTER_ASSERT(reporter, pts[k] == gIterTests[i].resultPts[l++]);
}
} while (gIterTests[i].resultVerbs[j++] != SkPath::kDone_Verb);
REPORTER_ASSERT(reporter, j == (int)gIterTests[i].numResultVerbs);
}
// The GM degeneratesegments.cpp test is more extensive
}
static void test_raw_iter(skiatest::Reporter* reporter) {
SkPath p;
SkPoint pts[4];
// Test an iterator with no path
SkPath::RawIter noPathIter;
REPORTER_ASSERT(reporter, noPathIter.next(pts) == SkPath::kDone_Verb);
// Test that setting an empty path works
noPathIter.setPath(p);
REPORTER_ASSERT(reporter, noPathIter.next(pts) == SkPath::kDone_Verb);
// Test an iterator with an initial empty path
SkPath::RawIter iter(p);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb);
// Test that a move-only path returns the move.
p.moveTo(SK_Scalar1, 0);
iter.setPath(p);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb);
REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1);
REPORTER_ASSERT(reporter, pts[0].fY == 0);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb);
// No matter how many moves we add, we should get them all back
p.moveTo(SK_Scalar1*2, SK_Scalar1);
p.moveTo(SK_Scalar1*3, SK_Scalar1*2);
iter.setPath(p);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb);
REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1);
REPORTER_ASSERT(reporter, pts[0].fY == 0);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb);
REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1*2);
REPORTER_ASSERT(reporter, pts[0].fY == SK_Scalar1);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb);
REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1*3);
REPORTER_ASSERT(reporter, pts[0].fY == SK_Scalar1*2);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb);
// Initial close is never ever stored
p.reset();
p.close();
iter.setPath(p);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb);
// Move/close sequences
p.reset();
p.close(); // Not stored, no purpose
p.moveTo(SK_Scalar1, 0);
p.close();
p.close(); // Not stored, no purpose
p.moveTo(SK_Scalar1*2, SK_Scalar1);
p.close();
p.moveTo(SK_Scalar1*3, SK_Scalar1*2);
p.moveTo(SK_Scalar1*4, SK_Scalar1*3);
p.close();
iter.setPath(p);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb);
REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1);
REPORTER_ASSERT(reporter, pts[0].fY == 0);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kClose_Verb);
REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1);
REPORTER_ASSERT(reporter, pts[0].fY == 0);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb);
REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1*2);
REPORTER_ASSERT(reporter, pts[0].fY == SK_Scalar1);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kClose_Verb);
REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1*2);
REPORTER_ASSERT(reporter, pts[0].fY == SK_Scalar1);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb);
REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1*3);
REPORTER_ASSERT(reporter, pts[0].fY == SK_Scalar1*2);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb);
REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1*4);
REPORTER_ASSERT(reporter, pts[0].fY == SK_Scalar1*3);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kClose_Verb);
REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1*4);
REPORTER_ASSERT(reporter, pts[0].fY == SK_Scalar1*3);
REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb);
// Generate random paths and verify
SkPoint randomPts[25];
for (int i = 0; i < 5; ++i) {
for (int j = 0; j < 5; ++j) {
randomPts[i*5+j].set(SK_Scalar1*i, SK_Scalar1*j);
}
}
// Max of 10 segments, max 3 points per segment
SkRandom rand(9876543);
SkPoint expectedPts[31]; // May have leading moveTo
SkPath::Verb expectedVerbs[22]; // May have leading moveTo
SkPath::Verb nextVerb;
for (int i = 0; i < 500; ++i) {
p.reset();
bool lastWasClose = true;
bool haveMoveTo = false;
SkPoint lastMoveToPt = { 0, 0 };
int numPoints = 0;
int numVerbs = (rand.nextU() >> 16) % 10;
int numIterVerbs = 0;
for (int j = 0; j < numVerbs; ++j) {
do {
nextVerb = static_cast<SkPath::Verb>((rand.nextU() >> 16) % SkPath::kDone_Verb);
} while (lastWasClose && nextVerb == SkPath::kClose_Verb);
switch (nextVerb) {
case SkPath::kMove_Verb:
expectedPts[numPoints] = randomPts[(rand.nextU() >> 16) % 25];
p.moveTo(expectedPts[numPoints]);
lastMoveToPt = expectedPts[numPoints];
numPoints += 1;
lastWasClose = false;
haveMoveTo = true;
break;
case SkPath::kLine_Verb:
if (!haveMoveTo) {
expectedPts[numPoints++] = lastMoveToPt;
expectedVerbs[numIterVerbs++] = SkPath::kMove_Verb;
haveMoveTo = true;
}
expectedPts[numPoints] = randomPts[(rand.nextU() >> 16) % 25];
p.lineTo(expectedPts[numPoints]);
numPoints += 1;
lastWasClose = false;
break;
case SkPath::kQuad_Verb:
if (!haveMoveTo) {
expectedPts[numPoints++] = lastMoveToPt;
expectedVerbs[numIterVerbs++] = SkPath::kMove_Verb;
haveMoveTo = true;
}
expectedPts[numPoints] = randomPts[(rand.nextU() >> 16) % 25];
expectedPts[numPoints + 1] = randomPts[(rand.nextU() >> 16) % 25];
p.quadTo(expectedPts[numPoints], expectedPts[numPoints + 1]);
numPoints += 2;
lastWasClose = false;
break;
case SkPath::kCubic_Verb:
if (!haveMoveTo) {
expectedPts[numPoints++] = lastMoveToPt;
expectedVerbs[numIterVerbs++] = SkPath::kMove_Verb;
haveMoveTo = true;
}
expectedPts[numPoints] = randomPts[(rand.nextU() >> 16) % 25];
expectedPts[numPoints + 1] = randomPts[(rand.nextU() >> 16) % 25];
expectedPts[numPoints + 2] = randomPts[(rand.nextU() >> 16) % 25];
p.cubicTo(expectedPts[numPoints], expectedPts[numPoints + 1],
expectedPts[numPoints + 2]);
numPoints += 3;
lastWasClose = false;
break;
case SkPath::kClose_Verb:
p.close();
haveMoveTo = false;
lastWasClose = true;
break;
default:;
}
expectedVerbs[numIterVerbs++] = nextVerb;
}
iter.setPath(p);
numVerbs = numIterVerbs;
numIterVerbs = 0;
int numIterPts = 0;
SkPoint lastMoveTo;
SkPoint lastPt;
lastMoveTo.set(0, 0);
lastPt.set(0, 0);
while ((nextVerb = iter.next(pts)) != SkPath::kDone_Verb) {
REPORTER_ASSERT(reporter, nextVerb == expectedVerbs[numIterVerbs]);
numIterVerbs++;
switch (nextVerb) {
case SkPath::kMove_Verb:
REPORTER_ASSERT(reporter, numIterPts < numPoints);
REPORTER_ASSERT(reporter, pts[0] == expectedPts[numIterPts]);
lastPt = lastMoveTo = pts[0];
numIterPts += 1;
break;
case SkPath::kLine_Verb:
REPORTER_ASSERT(reporter, numIterPts < numPoints + 1);
REPORTER_ASSERT(reporter, pts[0] == lastPt);
REPORTER_ASSERT(reporter, pts[1] == expectedPts[numIterPts]);
lastPt = pts[1];
numIterPts += 1;
break;
case SkPath::kQuad_Verb:
REPORTER_ASSERT(reporter, numIterPts < numPoints + 2);
REPORTER_ASSERT(reporter, pts[0] == lastPt);
REPORTER_ASSERT(reporter, pts[1] == expectedPts[numIterPts]);
REPORTER_ASSERT(reporter, pts[2] == expectedPts[numIterPts + 1]);
lastPt = pts[2];
numIterPts += 2;
break;
case SkPath::kCubic_Verb:
REPORTER_ASSERT(reporter, numIterPts < numPoints + 3);
REPORTER_ASSERT(reporter, pts[0] == lastPt);
REPORTER_ASSERT(reporter, pts[1] == expectedPts[numIterPts]);
REPORTER_ASSERT(reporter, pts[2] == expectedPts[numIterPts + 1]);
REPORTER_ASSERT(reporter, pts[3] == expectedPts[numIterPts + 2]);
lastPt = pts[3];
numIterPts += 3;
break;
case SkPath::kClose_Verb:
REPORTER_ASSERT(reporter, pts[0] == lastMoveTo);
lastPt = lastMoveTo;
break;
default:;
}
}
REPORTER_ASSERT(reporter, numIterPts == numPoints);
REPORTER_ASSERT(reporter, numIterVerbs == numVerbs);
}
}
static void check_for_circle(skiatest::Reporter* reporter,
const SkPath& path,
bool expectedCircle,
SkPath::Direction expectedDir) {
SkRect rect;
REPORTER_ASSERT(reporter, path.isOval(&rect) == expectedCircle);
REPORTER_ASSERT(reporter, path.cheapIsDirection(expectedDir));
if (expectedCircle) {
REPORTER_ASSERT(reporter, rect.height() == rect.width());
}
}
static void test_circle_skew(skiatest::Reporter* reporter,
const SkPath& path,
SkPath::Direction dir) {
SkPath tmp;
SkMatrix m;
m.setSkew(SkIntToScalar(3), SkIntToScalar(5));
path.transform(m, &tmp);
// this matrix reverses the direction.
if (SkPath::kCCW_Direction == dir) {
dir = SkPath::kCW_Direction;
} else {
SkASSERT(SkPath::kCW_Direction == dir);
dir = SkPath::kCCW_Direction;
}
check_for_circle(reporter, tmp, false, dir);
}
static void test_circle_translate(skiatest::Reporter* reporter,
const SkPath& path,
SkPath::Direction dir) {
SkPath tmp;
// translate at small offset
SkMatrix m;
m.setTranslate(SkIntToScalar(15), SkIntToScalar(15));
path.transform(m, &tmp);
check_for_circle(reporter, tmp, true, dir);
tmp.reset();
m.reset();
// translate at a relatively big offset
m.setTranslate(SkIntToScalar(1000), SkIntToScalar(1000));
path.transform(m, &tmp);
check_for_circle(reporter, tmp, true, dir);
}
static void test_circle_rotate(skiatest::Reporter* reporter,
const SkPath& path,
SkPath::Direction dir) {
for (int angle = 0; angle < 360; ++angle) {
SkPath tmp;
SkMatrix m;
m.setRotate(SkIntToScalar(angle));
path.transform(m, &tmp);
// TODO: a rotated circle whose rotated angle is not a multiple of 90
// degrees is not an oval anymore, this can be improved. we made this
// for the simplicity of our implementation.
if (angle % 90 == 0) {
check_for_circle(reporter, tmp, true, dir);
} else {
check_for_circle(reporter, tmp, false, dir);
}
}
}
static void test_circle_mirror_x(skiatest::Reporter* reporter,
const SkPath& path,
SkPath::Direction dir) {
SkPath tmp;
SkMatrix m;
m.reset();
m.setScaleX(-SK_Scalar1);
path.transform(m, &tmp);
if (SkPath::kCW_Direction == dir) {
dir = SkPath::kCCW_Direction;
} else {
SkASSERT(SkPath::kCCW_Direction == dir);
dir = SkPath::kCW_Direction;
}
check_for_circle(reporter, tmp, true, dir);
}
static void test_circle_mirror_y(skiatest::Reporter* reporter,
const SkPath& path,
SkPath::Direction dir) {
SkPath tmp;
SkMatrix m;
m.reset();
m.setScaleY(-SK_Scalar1);
path.transform(m, &tmp);
if (SkPath::kCW_Direction == dir) {
dir = SkPath::kCCW_Direction;
} else {
SkASSERT(SkPath::kCCW_Direction == dir);
dir = SkPath::kCW_Direction;
}
check_for_circle(reporter, tmp, true, dir);
}
static void test_circle_mirror_xy(skiatest::Reporter* reporter,
const SkPath& path,
SkPath::Direction dir) {
SkPath tmp;
SkMatrix m;
m.reset();
m.setScaleX(-SK_Scalar1);
m.setScaleY(-SK_Scalar1);
path.transform(m, &tmp);
check_for_circle(reporter, tmp, true, dir);
}
static void test_circle_with_direction(skiatest::Reporter* reporter,
SkPath::Direction dir) {
SkPath path;
// circle at origin
path.addCircle(0, 0, SkIntToScalar(20), dir);
check_for_circle(reporter, path, true, dir);
test_circle_rotate(reporter, path, dir);
test_circle_translate(reporter, path, dir);
test_circle_skew(reporter, path, dir);
// circle at an offset at (10, 10)
path.reset();
path.addCircle(SkIntToScalar(10), SkIntToScalar(10),
SkIntToScalar(20), dir);
check_for_circle(reporter, path, true, dir);
test_circle_rotate(reporter, path, dir);
test_circle_translate(reporter, path, dir);
test_circle_skew(reporter, path, dir);
test_circle_mirror_x(reporter, path, dir);
test_circle_mirror_y(reporter, path, dir);
test_circle_mirror_xy(reporter, path, dir);
}
static void test_circle_with_add_paths(skiatest::Reporter* reporter) {
SkPath path;
SkPath circle;
SkPath rect;
SkPath empty;
static const SkPath::Direction kCircleDir = SkPath::kCW_Direction;
static const SkPath::Direction kCircleDirOpposite = SkPath::kCCW_Direction;
circle.addCircle(0, 0, SkIntToScalar(10), kCircleDir);
rect.addRect(SkIntToScalar(5), SkIntToScalar(5),
SkIntToScalar(20), SkIntToScalar(20), SkPath::kCW_Direction);
SkMatrix translate;
translate.setTranslate(SkIntToScalar(12), SkIntToScalar(12));
// For simplicity, all the path concatenation related operations
// would mark it non-circle, though in theory it's still a circle.
// empty + circle (translate)
path = empty;
path.addPath(circle, translate);
check_for_circle(reporter, path, false, kCircleDir);
// circle + empty (translate)
path = circle;
path.addPath(empty, translate);
check_for_circle(reporter, path, false, kCircleDir);
// test reverseAddPath
path = circle;
path.reverseAddPath(rect);
check_for_circle(reporter, path, false, kCircleDirOpposite);
}
static void test_circle(skiatest::Reporter* reporter) {
test_circle_with_direction(reporter, SkPath::kCW_Direction);
test_circle_with_direction(reporter, SkPath::kCCW_Direction);
// multiple addCircle()
SkPath path;
path.addCircle(0, 0, SkIntToScalar(10), SkPath::kCW_Direction);
path.addCircle(0, 0, SkIntToScalar(20), SkPath::kCW_Direction);
check_for_circle(reporter, path, false, SkPath::kCW_Direction);
// some extra lineTo() would make isOval() fail
path.reset();
path.addCircle(0, 0, SkIntToScalar(10), SkPath::kCW_Direction);
path.lineTo(0, 0);
check_for_circle(reporter, path, false, SkPath::kCW_Direction);
// not back to the original point
path.reset();
path.addCircle(0, 0, SkIntToScalar(10), SkPath::kCW_Direction);
path.setLastPt(SkIntToScalar(5), SkIntToScalar(5));
check_for_circle(reporter, path, false, SkPath::kCW_Direction);
test_circle_with_add_paths(reporter);
}
static void test_oval(skiatest::Reporter* reporter) {
SkRect rect;
SkMatrix m;
SkPath path;
rect = SkRect::MakeWH(SkIntToScalar(30), SkIntToScalar(50));
path.addOval(rect);
REPORTER_ASSERT(reporter, path.isOval(NULL));
m.setRotate(SkIntToScalar(90));
SkPath tmp;
path.transform(m, &tmp);
// an oval rotated 90 degrees is still an oval.
REPORTER_ASSERT(reporter, tmp.isOval(NULL));
m.reset();
m.setRotate(SkIntToScalar(30));
tmp.reset();
path.transform(m, &tmp);
// an oval rotated 30 degrees is not an oval anymore.
REPORTER_ASSERT(reporter, !tmp.isOval(NULL));
// since empty path being transformed.
path.reset();
tmp.reset();
m.reset();
path.transform(m, &tmp);
REPORTER_ASSERT(reporter, !tmp.isOval(NULL));
// empty path is not an oval
tmp.reset();
REPORTER_ASSERT(reporter, !tmp.isOval(NULL));
// only has moveTo()s
tmp.reset();
tmp.moveTo(0, 0);
tmp.moveTo(SkIntToScalar(10), SkIntToScalar(10));
REPORTER_ASSERT(reporter, !tmp.isOval(NULL));
// mimic WebKit's calling convention,
// call moveTo() first and then call addOval()
path.reset();
path.moveTo(0, 0);
path.addOval(rect);
REPORTER_ASSERT(reporter, path.isOval(NULL));
// copy path
path.reset();
tmp.reset();
tmp.addOval(rect);
path = tmp;
REPORTER_ASSERT(reporter, path.isOval(NULL));
}
static void TestPath(skiatest::Reporter* reporter) {
SkTSize<SkScalar>::Make(3,4);
SkPath p, p2;
SkRect bounds, bounds2;
REPORTER_ASSERT(reporter, p.isEmpty());
REPORTER_ASSERT(reporter, 0 == p.countPoints());
REPORTER_ASSERT(reporter, 0 == p.countVerbs());
REPORTER_ASSERT(reporter, 0 == p.getSegmentMasks());
REPORTER_ASSERT(reporter, p.isConvex());
REPORTER_ASSERT(reporter, p.getFillType() == SkPath::kWinding_FillType);
REPORTER_ASSERT(reporter, !p.isInverseFillType());
REPORTER_ASSERT(reporter, p == p2);
REPORTER_ASSERT(reporter, !(p != p2));
REPORTER_ASSERT(reporter, p.getBounds().isEmpty());
bounds.set(0, 0, SK_Scalar1, SK_Scalar1);
p.addRoundRect(bounds, SK_Scalar1, SK_Scalar1);
check_convex_bounds(reporter, p, bounds);
// we have quads or cubics
REPORTER_ASSERT(reporter, p.getSegmentMasks() & kCurveSegmentMask);
REPORTER_ASSERT(reporter, !p.isEmpty());
p.reset();
REPORTER_ASSERT(reporter, 0 == p.getSegmentMasks());
REPORTER_ASSERT(reporter, p.isEmpty());
p.addOval(bounds);
check_convex_bounds(reporter, p, bounds);
REPORTER_ASSERT(reporter, !p.isEmpty());
p.reset();
p.addRect(bounds);
check_convex_bounds(reporter, p, bounds);
// we have only lines
REPORTER_ASSERT(reporter, SkPath::kLine_SegmentMask == p.getSegmentMasks());
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, p != p2);
REPORTER_ASSERT(reporter, !(p == p2));
// do getPoints and getVerbs return the right result
REPORTER_ASSERT(reporter, p.getPoints(NULL, 0) == 4);
REPORTER_ASSERT(reporter, p.getVerbs(NULL, 0) == 5);
SkPoint pts[4];
int count = p.getPoints(pts, 4);
REPORTER_ASSERT(reporter, count == 4);
uint8_t verbs[6];
verbs[5] = 0xff;
p.getVerbs(verbs, 5);
REPORTER_ASSERT(reporter, SkPath::kMove_Verb == verbs[0]);
REPORTER_ASSERT(reporter, SkPath::kLine_Verb == verbs[1]);
REPORTER_ASSERT(reporter, SkPath::kLine_Verb == verbs[2]);
REPORTER_ASSERT(reporter, SkPath::kLine_Verb == verbs[3]);
REPORTER_ASSERT(reporter, SkPath::kClose_Verb == verbs[4]);
REPORTER_ASSERT(reporter, 0xff == verbs[5]);
bounds2.set(pts, 4);
REPORTER_ASSERT(reporter, bounds == bounds2);
bounds.offset(SK_Scalar1*3, SK_Scalar1*4);
p.offset(SK_Scalar1*3, SK_Scalar1*4);
REPORTER_ASSERT(reporter, bounds == p.getBounds());
REPORTER_ASSERT(reporter, p.isRect(NULL));
bounds2.setEmpty();
REPORTER_ASSERT(reporter, p.isRect(&bounds2));
REPORTER_ASSERT(reporter, bounds == bounds2);
// now force p to not be a rect
bounds.set(0, 0, SK_Scalar1/2, SK_Scalar1/2);
p.addRect(bounds);
REPORTER_ASSERT(reporter, !p.isRect(NULL));
test_isLine(reporter);
test_isRect(reporter);
test_isNestedRects(reporter);
test_zero_length_paths(reporter);
test_direction(reporter);
test_convexity(reporter);
test_convexity2(reporter);
test_conservativelyContains(reporter);
test_close(reporter);
test_segment_masks(reporter);
test_flattening(reporter);
test_transform(reporter);
test_bounds(reporter);
test_iter(reporter);
test_raw_iter(reporter);
test_circle(reporter);
test_oval(reporter);
test_strokerec(reporter);
test_addPoly(reporter);
test_isfinite(reporter);
test_isfinite_after_transform(reporter);
test_arb_round_rect_is_convex(reporter);
test_arb_zero_rad_round_rect_is_rect(reporter);
test_addrect_isfinite(reporter);
test_tricky_cubic();
test_clipped_cubic();
test_crbug_170666();
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("Path", PathTestClass, TestPath)
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