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authorGravatar reed@google.com <reed@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81>2011-02-08 21:56:39 +0000
committerGravatar reed@google.com <reed@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81>2011-02-08 21:56:39 +0000
commit077910e20cda41d7981084fbd047a108894bc8df (patch)
treef4dd5f34b703772700e04976a42d52277d86c107 /tests
parent48543277728fdf66b993f17421f65fba532a23a2 (diff)
add SkScalarIsFinite(), and use it for a more portable impl of SkRect::isValidCoords()
git-svn-id: http://skia.googlecode.com/svn/trunk@775 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'tests')
-rw-r--r--tests/MathTest.cpp35
1 files changed, 35 insertions, 0 deletions
diff --git a/tests/MathTest.cpp b/tests/MathTest.cpp
index 2555d73866..9aed9f9aa0 100644
--- a/tests/MathTest.cpp
+++ b/tests/MathTest.cpp
@@ -146,6 +146,40 @@ static void unittest_fastfloat(skiatest::Reporter* reporter) {
}
}
+static float make_zero() {
+ return sk_float_sin(0);
+}
+
+static void unittest_isfinite(skiatest::Reporter* reporter) {
+#ifdef SK_SCALAR_IS_FLOAT
+ float nan = ::asin(2);
+ float inf = 1.0 / make_zero();
+ float big = 3.40282e+038;
+
+ REPORTER_ASSERT(reporter, SkScalarIsNaN(nan));
+ REPORTER_ASSERT(reporter, !SkScalarIsNaN(inf));
+ REPORTER_ASSERT(reporter, !SkScalarIsNaN(big));
+ REPORTER_ASSERT(reporter, !SkScalarIsNaN(-big));
+ REPORTER_ASSERT(reporter, !SkScalarIsNaN(0));
+
+ REPORTER_ASSERT(reporter, !SkScalarIsFinite(nan));
+ REPORTER_ASSERT(reporter, !SkScalarIsFinite(inf));
+ REPORTER_ASSERT(reporter, SkScalarIsFinite(big));
+ REPORTER_ASSERT(reporter, SkScalarIsFinite(-big));
+ REPORTER_ASSERT(reporter, SkScalarIsFinite(0));
+#else
+ REPORTER_ASSERT(reporter, SkScalarIsNaN(0x80000000));
+ REPORTER_ASSERT(reporter, !SkScalarIsNaN(0x7FFFFFFF));
+ REPORTER_ASSERT(reporter, !SkScalarIsNaN(0x80000001));
+ REPORTER_ASSERT(reporter, !SkScalarIsNaN(0));
+
+ REPORTER_ASSERT(reporter, !SkScalarIsFinite(0x80000000));
+ REPORTER_ASSERT(reporter, SkScalarIsFinite(0x7FFFFFFF));
+ REPORTER_ASSERT(reporter, SkScalarIsFinite(0x80000001));
+ REPORTER_ASSERT(reporter, SkScalarIsFinite(0));
+#endif
+}
+
#endif
static void test_muldiv255(skiatest::Reporter* reporter) {
@@ -309,6 +343,7 @@ static void TestMath(skiatest::Reporter* reporter) {
#ifdef SK_CAN_USE_FLOAT
unittest_fastfloat(reporter);
+ unittest_isfinite(reporter);
#endif
#ifdef SkLONGLONG