From 70f1a6c64ecb891d77aee576bd045f8b4a03f2a3 Mon Sep 17 00:00:00 2001 From: benjaminwagner Date: Thu, 7 Apr 2016 09:23:11 -0700 Subject: Add pinned versions of *ToFixed. BUG=skia:4632 GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1707023002 Review URL: https://codereview.chromium.org/1707023002 --- tests/MathTest.cpp | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) (limited to 'tests/MathTest.cpp') 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(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)); +} -- cgit v1.2.3