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more rgn==aaclip tests

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git-svn-id: http://skia.googlecode.com/svn/trunk@2744 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@google.com 2011-11-23 19:43:46 +00:00
parent 2cdfade4e8
commit a052aca410
1 changed files with 44 additions and 13 deletions
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57
tests/AAClipTest.cpp
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@ -57,16 +57,17 @@ static bool operator==(const SkMask& a, const SkMask& b) {
}
static void copyToMask(const SkRegion& rgn, SkMask* mask) {
mask->fFormat = SkMask::kA8_Format;
if (rgn.isEmpty()) {
mask->fImage = NULL;
mask->fBounds.setEmpty();
mask->fRowBytes = 0;
mask->fImage = NULL;
return;
}
mask->fBounds = rgn.getBounds();
mask->fRowBytes = mask->fBounds.width();
mask->fFormat = SkMask::kA8_Format;
mask->fImage = SkMask::AllocImage(mask->computeImageSize());
sk_bzero(mask->fImage, mask->computeImageSize());
@ -101,23 +102,53 @@ static void make_rand_rgn(SkRegion* rgn, SkRandom& rand) {
}
}
static bool operator==(const SkRegion& rgn, const SkAAClip& aaclip) {
SkMask mask0, mask1;
copyToMask(rgn, &mask0);
aaclip.copyToMask(&mask1);
bool eq = (mask0 == mask1);
SkMask::FreeImage(mask0.fImage);
SkMask::FreeImage(mask1.fImage);
return eq;
}
static bool equalsAAClip(const SkRegion& rgn) {
SkAAClip aaclip;
aaclip.setRegion(rgn);
return rgn == aaclip;
}
static void setRgnToPath(SkRegion* rgn, const SkPath& path) {
SkIRect ir;
path.getBounds().round(&ir);
rgn->setPath(path, SkRegion(ir));
}
// aaclip.setRegion should create idential masks to the region
static void test_rgn(skiatest::Reporter* reporter) {
SkRandom rand;
for (int i = 0; i < 1000; i++) {
SkRegion rgn;
make_rand_rgn(&rgn, rand);
SkMask mask0;
copyToMask(rgn, &mask0);
SkAAClip aaclip;
aaclip.setRegion(rgn);
SkMask mask1;
aaclip.copyToMask(&mask1);
REPORTER_ASSERT(reporter, mask0 == mask1);
SkMask::FreeImage(mask0.fImage);
SkMask::FreeImage(mask1.fImage);
REPORTER_ASSERT(reporter, equalsAAClip(rgn));
}
{
SkRegion rgn;
SkPath path;
path.addCircle(0, 0, SkIntToScalar(30));
setRgnToPath(&rgn, path);
REPORTER_ASSERT(reporter, equalsAAClip(rgn));
path.reset();
path.moveTo(0, 0);
path.lineTo(SkIntToScalar(100), 0);
path.lineTo(SkIntToScalar(100 - 20), SkIntToScalar(20));
path.lineTo(SkIntToScalar(20), SkIntToScalar(20));
setRgnToPath(&rgn, path);
REPORTER_ASSERT(reporter, equalsAAClip(rgn));
}
}