diff options
Diffstat (limited to 'tests/MathTest.cpp')
| -rw-r--r-- | tests/MathTest.cpp | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/tests/MathTest.cpp b/tests/MathTest.cpp index 580cd941fa..9343277f8d 100644 --- a/tests/MathTest.cpp +++ b/tests/MathTest.cpp @@ -5,6 +5,8 @@ * found in the LICENSE file. */ +#include "float.h" + #include "SkColorPriv.h" #include "SkEndian.h" #include "SkFixed.h" @@ -697,3 +699,41 @@ DEF_TEST(divmod_s32, r) { DEF_TEST(divmod_s64, r) { test_divmod<int64_t>(r); } + +DEF_TEST(PinToFixed, reporter) { + // double + REPORTER_ASSERT(reporter, 0 == SkDoublePinToFixed(0.0)); + REPORTER_ASSERT(reporter, 0x10000 == SkDoublePinToFixed(1.0)); + REPORTER_ASSERT(reporter, 0x7FFFFFFE == SkDoublePinToFixed(32767.999984741)); + REPORTER_ASSERT(reporter, 0x7FFFFFFF == SkDoublePinToFixed(32767.999984742)); + REPORTER_ASSERT(reporter, 0x7FFFFFFF == SkDoublePinToFixed(32767.999999999)); + REPORTER_ASSERT(reporter, 0x7FFFFFFF == SkDoublePinToFixed(32768.0)); + REPORTER_ASSERT(reporter, 0x7FFFFFFF == SkDoublePinToFixed(5e10)); + REPORTER_ASSERT(reporter, 0x7FFFFFFF == SkDoublePinToFixed(DBL_MAX)); + REPORTER_ASSERT(reporter, -0x10000 == SkDoublePinToFixed(-1.0)); + // SK_FixedMin is defined to be -SK_FixedMax. + REPORTER_ASSERT(reporter, -0x7FFFFFFE == SkDoublePinToFixed(-32767.999984741)); + REPORTER_ASSERT(reporter, -0x7FFFFFFF == SkDoublePinToFixed(-32767.999984742)); + REPORTER_ASSERT(reporter, -0x7FFFFFFF == SkDoublePinToFixed(-32767.999999999)); + REPORTER_ASSERT(reporter, -0x7FFFFFFF == SkDoublePinToFixed(-32768.0)); + REPORTER_ASSERT(reporter, -0x7FFFFFFF == SkDoublePinToFixed(-5e10)); + REPORTER_ASSERT(reporter, -0x7FFFFFFF == SkDoublePinToFixed(-DBL_MAX)); + + // float + REPORTER_ASSERT(reporter, 0 == SkFloatPinToFixed(0.0f)); + REPORTER_ASSERT(reporter, 0x10000 == SkFloatPinToFixed(1.0f)); + // SkFixed has more precision than float near SK_FixedMax, so SkFloatPinToFixed will never + // produce output between 0x7FFFFF80 and 0x7FFFFFFF. + REPORTER_ASSERT(reporter, 0x7FFFFF80 == SkFloatPinToFixed(32767.9990f)); + REPORTER_ASSERT(reporter, 0x7FFFFFFF == SkFloatPinToFixed(32767.9991f)); + REPORTER_ASSERT(reporter, 0x7FFFFFFF == SkFloatPinToFixed(32768.0f)); + REPORTER_ASSERT(reporter, 0x7FFFFFFF == SkFloatPinToFixed(5e10f)); + REPORTER_ASSERT(reporter, 0x7FFFFFFF == SkFloatPinToFixed(FLT_MAX)); + REPORTER_ASSERT(reporter, -0x10000 == SkFloatPinToFixed(-1.0f)); + // SK_FixedMin is defined to be -SK_FixedMax. + REPORTER_ASSERT(reporter, -0x7FFFFF80 == SkFloatPinToFixed(-32767.9990f)); + REPORTER_ASSERT(reporter, -0x7FFFFFFF == SkFloatPinToFixed(-32767.9991f)); + REPORTER_ASSERT(reporter, -0x7FFFFFFF == SkFloatPinToFixed(-32768.0f)); + REPORTER_ASSERT(reporter, -0x7FFFFFFF == SkFloatPinToFixed(-5e10f)); + REPORTER_ASSERT(reporter, -0x7FFFFFFF == SkFloatPinToFixed(-FLT_MAX)); +} |