add quick-n-dirty test for concat on matrix44
Review URL: https://codereview.appspot.com/6827069
git-svn-id: http://skia.googlecode.com/svn/trunk@6371 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tests/Matrix44Test.cpp b/tests/Matrix44Test.cpp
index 7037877..6e70c5f 100644
--- a/tests/Matrix44Test.cpp
+++ b/tests/Matrix44Test.cpp
@@ -76,6 +76,44 @@
}
}
+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 @@
0, 0, 0, 1);
}
+ test_concat(reporter);
+
if (false) { // avoid bit rot, suppress warning (working on making this pass)
test_common_angles(reporter);
}