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add test for http://code.google.com/p/chromium/issues/detail?id=131181

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git-svn-id: http://skia.googlecode.com/svn/trunk@4266 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@google.com 2012-06-15 18:26:04 +00:00
parent 945bbe1456
commit b59ed51564
1 changed files with 49 additions and 0 deletions
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49
tests/DrawPathTest.cpp
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@ -28,6 +28,54 @@ static SkCanvas* new_canvas(int w, int h) {
///////////////////////////////////////////////////////////////////////////////
static void moveToH(SkPath* path, const uint32_t raw[]) {
const float* fptr = (const float*)raw;
path->moveTo(fptr[0], fptr[1]);
}
static void cubicToH(SkPath* path, const uint32_t raw[]) {
const float* fptr = (const float*)raw;
path->cubicTo(fptr[0], fptr[1], fptr[2], fptr[3], fptr[4], fptr[5]);
}
// This used to assert, because we performed a cast (int)(pt[0].fX * scale) to
// arrive at an int (SkFDot6) rather than calling sk_float_round2int. The assert
// was that the initial line-segment produced by the cubic was not monotonically
// going down (i.e. the initial DY was negative). By rounding the floats, we get
// the more proper result.
//
// http://code.google.com/p/chromium/issues/detail?id=131181
//
static void test_crbug131181(skiatest::Reporter*) {
/*
fX = 18.8943768,
fY = 129.121277
}, {
fX = 18.8937435,
fY = 129.121689
}, {
fX = 18.8950119,
fY = 129.120422
}, {
fX = 18.5030727,
fY = 129.13121
*/
uint32_t data[] = {
0x419727af, 0x43011f0c, 0x41972663, 0x43011f27,
0x419728fc, 0x43011ed4, 0x4194064b, 0x43012197
};
SkPath path;
moveToH(&path, &data[0]);
cubicToH(&path, &data[2]);
SkAutoTUnref<SkCanvas> canvas(new_canvas(640, 480));
SkPaint paint;
paint.setAntiAlias(true);
canvas->drawPath(path, paint);
}
// Need to exercise drawing an inverse-path whose bounds intersect the clip,
// but whose edges do not (since its a quad which draws only in the bottom half
// of its bounds).
@ -138,6 +186,7 @@ static void TestDrawPath(skiatest::Reporter* reporter) {
test_bigcubic(reporter);
test_crbug_124652(reporter);
test_inversepathwithclip(reporter);
// test_crbug131181(reporter);
}
#include "TestClassDef.h"