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add quick-n-dirty test for concat on matrix44

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Review URL: https://codereview.appspot.com/6827069

git-svn-id: http://skia.googlecode.com/svn/trunk@6371 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
reed@google.com 2012-11-09 21:25:06 +00:00
parent caa3a3beb6
commit 80b577eba6
1 changed files with 40 additions and 0 deletions
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40
tests/Matrix44Test.cpp
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@ -76,6 +76,44 @@ static void test_common_angles(skiatest::Reporter* reporter) {
}
}
static void test_concat(skiatest::Reporter* reporter) {
int i;
SkMatrix44 a, b, c, d;
a.setTranslate(10, 10, 10);
b.setScale(2, 2, 2);
SkScalar src[8] = {
0, 0, 0, 1,
1, 1, 1, 1
};
SkScalar dst[8];
c.setConcat(a, b);
d = a;
d.preConcat(b);
REPORTER_ASSERT(reporter, d == c);
c.map(src, dst); c.map(src + 4, dst + 4);
for (i = 0; i < 3; ++i) {
REPORTER_ASSERT(reporter, 10 == dst[i]);
REPORTER_ASSERT(reporter, 12 == dst[i + 4]);
}
c.setConcat(b, a);
d = a;
d.postConcat(b);
REPORTER_ASSERT(reporter, d == c);
c.map(src, dst); c.map(src + 4, dst + 4);
for (i = 0; i < 3; ++i) {
REPORTER_ASSERT(reporter, 20 == dst[i]);
REPORTER_ASSERT(reporter, 22 == dst[i + 4]);
}
}
static void TestMatrix44(skiatest::Reporter* reporter) {
#ifdef SK_SCALAR_IS_FLOAT
SkMatrix44 mat, inverse, iden1, iden2, rot;
@ -139,6 +177,8 @@ static void TestMatrix44(skiatest::Reporter* reporter) {
0, 0, 0, 1);
}
test_concat(reporter);
if (false) { // avoid bit rot, suppress warning (working on making this pass)
test_common_angles(reporter);
}