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7012162d2f
skia2/tests/PathTest.cpp
schenney@chromium.org 6c31d9d9b4 Fixing PathTest. It was always broken in the convexity test code due 
to a failure to correctly use SkScalar.

git-svn-id: http://skia.googlecode.com/svn/trunk@2904 2bbb7eff-a529-9590-31e7-b0007b416f81
2011-12-20 16:33:30 +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 "SkPaint.h"
#include "SkPath.h"
#include "SkParse.h"
#include "SkReader32.h"
#include "SkSize.h"
#include "SkWriter32.h"
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, (bool)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::Convexity c = SkPath::ComputeConvexity(path);
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);
SkPath line;
line.moveTo(12*SK_Scalar1, 20*SK_Scalar1);
line.lineTo(-12*SK_Scalar1, -20*SK_Scalar1);
line.close();
check_convexity(reporter, pt, SkPath::kConvex_Convexity);
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);
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);
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);
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);
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);
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);
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);
}
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) {
static const SkPath::Convexity C = SkPath::kConcave_Convexity;
static const SkPath::Convexity V = SkPath::kConvex_Convexity;
SkPath path;
REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path));
path.addCircle(0, 0, 10);
REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path));
path.addCircle(0, 0, 10); // 2nd circle
REPORTER_ASSERT(reporter, C == SkPath::ComputeConvexity(path));
path.reset();
path.addRect(0, 0, 10, 10, SkPath::kCCW_Direction);
REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path));
path.reset();
path.addRect(0, 0, 10, 10, SkPath::kCW_Direction);
REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path));
static const struct {
const char* fPathStr;
SkPath::Convexity fExpectedConvexity;
} gRec[] = {
{ "", SkPath::kConvex_Convexity },
{ "0 0", SkPath::kConvex_Convexity },
{ "0 0 10 10", SkPath::kConvex_Convexity },
{ "0 0 10 10 20 20 0 0 10 10", SkPath::kConcave_Convexity },
{ "0 0 10 10 10 20", SkPath::kConvex_Convexity },
{ "0 0 10 10 10 0", SkPath::kConvex_Convexity },
{ "0 0 10 10 10 0 0 10", SkPath::kConcave_Convexity },
{ "0 0 10 0 0 10 -10 -10", SkPath::kConcave_Convexity },
};
for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); ++i) {
SkPath path;
setFromString(&path, gRec[i].fPathStr);
SkPath::Convexity c = SkPath::ComputeConvexity(path);
REPORTER_ASSERT(reporter, c == gRec[i].fExpectedConvexity);
}
}
// 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}};
// 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
};
SkPoint* lastPass = re;
SkPoint* lastClose = f8;
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));
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_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]);
SkWriter32 writer(100);
p.flatten(writer);
size_t size = writer.size();
SkAutoMalloc storage(size);
writer.flatten(storage.get());
SkReader32 reader(storage.get(), size);
SkPath p1;
REPORTER_ASSERT(reporter, p1 != p);
p1.unflatten(reader);
REPORTER_ASSERT(reporter, p1 == p);
}
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;
SkRect bounds;
// Lone moveTo case
p.moveTo(SK_Scalar1, SK_Scalar1);
bounds.set(0, 0, 0, 0);
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, 1 == p.countPoints());
REPORTER_ASSERT(reporter, bounds == p.getBounds());
// MoveTo-MoveTo case
p.moveTo(SK_Scalar1*2, SK_Scalar1);
bounds.set(SK_Scalar1, SK_Scalar1, 2*SK_Scalar1, SK_Scalar1);
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, 2 == p.countPoints());
REPORTER_ASSERT(reporter, bounds == p.getBounds());
// moveTo-close case
p.reset();
p.moveTo(SK_Scalar1, SK_Scalar1);
p.close();
bounds.set(0, 0, 0, 0);
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, 1 == p.countPoints());
REPORTER_ASSERT(reporter, bounds == p.getBounds());
// moveTo-close-moveTo-close case
p.moveTo(SK_Scalar1*2, SK_Scalar1);
p.close();
bounds.set(SK_Scalar1, SK_Scalar1, 2*SK_Scalar1, SK_Scalar1);
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, 2 == p.countPoints());
REPORTER_ASSERT(reporter, bounds == p.getBounds());
// moveTo-line case
p.reset();
p.moveTo(SK_Scalar1, SK_Scalar1);
p.lineTo(SK_Scalar1, SK_Scalar1);
bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1);
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, 2 == p.countPoints());
REPORTER_ASSERT(reporter, bounds == p.getBounds());
// moveTo-lineTo-moveTo-lineTo case
p.moveTo(SK_Scalar1*2, SK_Scalar1);
p.lineTo(SK_Scalar1*2, SK_Scalar1);
bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1*2, SK_Scalar1);
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, 4 == p.countPoints());
REPORTER_ASSERT(reporter, bounds == p.getBounds());
// moveTo-line-close case
p.reset();
p.moveTo(SK_Scalar1, SK_Scalar1);
p.lineTo(SK_Scalar1, SK_Scalar1);
p.close();
bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1);
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, 2 == p.countPoints());
REPORTER_ASSERT(reporter, bounds == p.getBounds());
// moveTo-line-close-moveTo-line-close case
p.moveTo(SK_Scalar1*2, SK_Scalar1);
p.lineTo(SK_Scalar1*2, SK_Scalar1);
p.close();
bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1*2, SK_Scalar1);
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, 4 == p.countPoints());
REPORTER_ASSERT(reporter, bounds == p.getBounds());
// moveTo-quadTo case
p.reset();
p.moveTo(SK_Scalar1, SK_Scalar1);
p.quadTo(SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1);
bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1);
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, 3 == p.countPoints());
REPORTER_ASSERT(reporter, bounds == p.getBounds());
// moveTo-quadTo-close case
p.close();
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, 3 == p.countPoints());
REPORTER_ASSERT(reporter, bounds == p.getBounds());
// moveTo-quadTo-moveTo-quadTo case
p.reset();
p.moveTo(SK_Scalar1, SK_Scalar1);
p.quadTo(SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1);
p.moveTo(SK_Scalar1*2, SK_Scalar1);
p.quadTo(SK_Scalar1*2, SK_Scalar1, SK_Scalar1*2, SK_Scalar1);
bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1*2, SK_Scalar1);
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, 6 == p.countPoints());
REPORTER_ASSERT(reporter, bounds == p.getBounds());
// moveTo-cubicTo case
p.reset();
p.moveTo(SK_Scalar1, SK_Scalar1);
p.cubicTo(SK_Scalar1, SK_Scalar1,
SK_Scalar1, SK_Scalar1,
SK_Scalar1, SK_Scalar1);
bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1);
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, 4 == p.countPoints());
REPORTER_ASSERT(reporter, bounds == p.getBounds());
// moveTo-quadTo-close case
p.close();
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, 4 == p.countPoints());
REPORTER_ASSERT(reporter, bounds == p.getBounds());
// moveTo-quadTo-moveTo-quadTo case
p.reset();
p.moveTo(SK_Scalar1, SK_Scalar1);
p.cubicTo(SK_Scalar1, SK_Scalar1,
SK_Scalar1, SK_Scalar1,
SK_Scalar1, SK_Scalar1);
p.moveTo(SK_Scalar1*2, SK_Scalar1);
p.cubicTo(SK_Scalar1*2, SK_Scalar1,
SK_Scalar1*2, SK_Scalar1,
SK_Scalar1*2, SK_Scalar1);
bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1*2, SK_Scalar1);
REPORTER_ASSERT(reporter, !p.isEmpty());
REPORTER_ASSERT(reporter, 8 == p.countPoints());
REPORTER_ASSERT(reporter, bounds == p.getBounds());
}
struct SegmentInfo {
SkPath fPath;
int fPointCount;
};
#define kCurveSegmentMask (SkPath::kQuad_SegmentMask | SkPath::kCubic_SegmentMask)
void TestPath(skiatest::Reporter* reporter);
void TestPath(skiatest::Reporter* reporter) {
{
SkSize size;
size.fWidth = 3.4f;
size.width();
size = SkSize::Make(3,4);
SkISize isize = SkISize::Make(3,4);
}
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.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));
// does getPoints return the right result
REPORTER_ASSERT(reporter, p.getPoints(NULL, 5) == 4);
SkPoint pts[4];
int count = p.getPoints(pts, 4);
REPORTER_ASSERT(reporter, count == 4);
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_isRect(reporter);
SkPoint pt;
p.moveTo(SK_Scalar1, 0);
p.getLastPt(&pt);
REPORTER_ASSERT(reporter, pt.fX == SK_Scalar1);
REPORTER_ASSERT(reporter, !p.isEmpty());
test_zero_length_paths(reporter);
test_convexity(reporter);
test_convexity2(reporter);
test_close(reporter);
p.reset();
p.moveTo(0, 0);
p.quadTo(100, 100, 200, 200);
REPORTER_ASSERT(reporter, SkPath::kQuad_SegmentMask == p.getSegmentMasks());
REPORTER_ASSERT(reporter, !p.isEmpty());
p.cubicTo(100, 100, 200, 200, 300, 300);
REPORTER_ASSERT(reporter, kCurveSegmentMask == p.getSegmentMasks());
REPORTER_ASSERT(reporter, !p.isEmpty());
p.reset();
p.moveTo(0, 0);
p.cubicTo(100, 100, 200, 200, 300, 300);
REPORTER_ASSERT(reporter, SkPath::kCubic_SegmentMask == p.getSegmentMasks());
REPORTER_ASSERT(reporter, !p.isEmpty());
test_flattening(reporter);
test_transform(reporter);
test_bounds(reporter);
}
#include "TestClassDef.h"
DEFINE_TESTCLASS("Path", PathTestClass, TestPath)
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