2b9ee63c24
This is a follow on to (Crop the fast path dashed lines to the cull rect - https://codereview.chromium.org/699623003/) Review URL: https://codereview.chromium.org/701133002
89 lines
3.5 KiB
C++
89 lines
3.5 KiB
C++
/*
|
|
* Copyright 2014 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 "SkDashPathEffect.h"
|
|
#include "SkWriteBuffer.h"
|
|
|
|
// crbug.com/348821 was rooted in SkDashPathEffect refusing to flatten and unflatten itself when
|
|
// fInitialDashLength < 0 (a signal the effect is nonsense). Here we test that it flattens.
|
|
|
|
DEF_TEST(DashPathEffectTest_crbug_348821, r) {
|
|
SkScalar intervals[] = { 1.76934361e+36f, 2.80259693e-45f }; // Values from bug.
|
|
const int count = 2;
|
|
SkScalar phase = SK_ScalarInfinity; // Used to force the bad fInitialDashLength = -1 path.
|
|
SkAutoTUnref<SkDashPathEffect> dash(SkDashPathEffect::Create(intervals, count, phase));
|
|
|
|
// NULL -> refuses to work with flattening framework.
|
|
REPORTER_ASSERT(r, dash->getFactory() != NULL);
|
|
|
|
SkWriteBuffer buffer;
|
|
buffer.writeFlattenable(dash);
|
|
REPORTER_ASSERT(r, buffer.bytesWritten() > 12); // We'd write 12 if broken, >=40 if not.
|
|
}
|
|
|
|
// Test out the asPoint culling behavior.
|
|
DEF_TEST(DashPathEffectTest_asPoints, r) {
|
|
|
|
const SkScalar intervals[] = { 1.0f, 1.0f };
|
|
const int count = 2;
|
|
SkAutoTUnref<SkDashPathEffect> dash(SkDashPathEffect::Create(intervals, count, 0.0f));
|
|
|
|
SkRect cull = SkRect::MakeWH(1.0f, 1.0f);
|
|
|
|
const struct {
|
|
SkPoint fPts[2];
|
|
bool fExpectedResult;
|
|
} testCases[] = {
|
|
{ { { -5.0f, 0.5f }, { -4.0f, 0.5f } }, false }, // off to the left
|
|
{ { { 4.0f, 0.5f }, { 5.0f, 0.5f } }, false }, // off to the right
|
|
{ { { 0.5f, 4.0f }, { 0.5f, 5.0f } }, false }, // off the bottom
|
|
{ { { 0.5f, -5.0f }, { 0.5f, -4.0f } }, false }, // off the top
|
|
{ { { 0.5f, 0.2f }, { 0.5f, 0.8f } }, true }, // entirely inside vertical
|
|
{ { { 0.2f, 0.5f }, { 0.8f, 0.5f } }, true }, // entirely inside horizontal
|
|
{ { { 0.5f, -5.0f }, { 0.5f, 5.0f } }, true }, // straddles both sides vertically
|
|
{ { { -5.0f, 0.5f }, { 5.0f, 0.5f } }, true }, // straddles both sides horizontally
|
|
{ { { 0.5f, -5.0f }, { 0.5f, 0.5f } }, true }, // straddles top
|
|
{ { { 0.5f, 5.0f }, { 0.5f, 0.5f } }, true }, // straddles bottom
|
|
{ { { -5.0f, 0.5f }, { 0.5f, 0.5f } }, true }, // straddles left
|
|
{ { { 5.0f, 0.5f }, { 0.5f, 0.5f } }, true }, // straddles right
|
|
{ { { 0.5f, 0.5f }, { 0.5f, 0.5f } }, false }, // zero length
|
|
};
|
|
|
|
SkPaint paint;
|
|
paint.setStyle(SkPaint::kStroke_Style);
|
|
paint.setStrokeWidth(1.0f);
|
|
SkStrokeRec rec(paint);
|
|
|
|
static const int kNumMats = 3;
|
|
SkMatrix mats[kNumMats];
|
|
mats[0].reset();
|
|
mats[1].setRotate(90, 0.5f, 0.5f);
|
|
mats[2].setTranslate(10.0f, 10.0f);
|
|
|
|
for (int i = 0; i < kNumMats; ++i) {
|
|
for (int j = 0; j < (int)SK_ARRAY_COUNT(testCases); ++j) {
|
|
for (int k = 0; k < 2; ++k) { // exercise alternating endpoints
|
|
SkPathEffect::PointData results;
|
|
SkPath src;
|
|
|
|
src.moveTo(testCases[j].fPts[k]);
|
|
src.lineTo(testCases[j].fPts[(k+1)%2]);
|
|
|
|
bool actualResult = dash->asPoints(&results, src, rec, mats[i], &cull);
|
|
if (i < 2) {
|
|
REPORTER_ASSERT(r, actualResult == testCases[j].fExpectedResult);
|
|
} else {
|
|
// On the third pass all the lines should be outside the translated cull rect
|
|
REPORTER_ASSERT(r, !actualResult);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|