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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkPMFloat.h"
#include "Test.h"
DEF_TEST(SkPMFloat, r) {
// Test SkPMColor <-> SkPMFloat
SkPMColor c = SkPreMultiplyColor(0xFFCC9933);
SkPMFloat pmf(c);
REPORTER_ASSERT(r, SkScalarNearlyEqual(255.0f, 255*pmf.a()));
REPORTER_ASSERT(r, SkScalarNearlyEqual(204.0f, 255*pmf.r()));
REPORTER_ASSERT(r, SkScalarNearlyEqual(153.0f, 255*pmf.g()));
REPORTER_ASSERT(r, SkScalarNearlyEqual( 51.0f, 255*pmf.b()));
REPORTER_ASSERT(r, c == pmf.round());
// Test rounding.
pmf = SkPMFloat(254.5f/255, 203.5f/255, 153.1f/255, 50.8f/255);
REPORTER_ASSERT(r, c == pmf.round());
SkPMFloat clamped(SkPMFloat(510.0f/255, 153.0f/255, 1.0f/255, -0.2f/255).round());
REPORTER_ASSERT(r, SkScalarNearlyEqual(255.0f, 255*clamped.a()));
REPORTER_ASSERT(r, SkScalarNearlyEqual(153.0f, 255*clamped.r()));
REPORTER_ASSERT(r, SkScalarNearlyEqual( 1.0f, 255*clamped.g()));
REPORTER_ASSERT(r, SkScalarNearlyEqual( 0.0f, 255*clamped.b()));
// Test SkPMFloat <-> Sk4f conversion.
Sk4f fs = clamped;
SkPMFloat scaled = fs * Sk4f(0.25f);
REPORTER_ASSERT(r, SkScalarNearlyEqual(63.75f, 255*scaled.a()));
REPORTER_ASSERT(r, SkScalarNearlyEqual(38.25f, 255*scaled.r()));
REPORTER_ASSERT(r, SkScalarNearlyEqual( 0.25f, 255*scaled.g()));
REPORTER_ASSERT(r, SkScalarNearlyEqual( 0.00f, 255*scaled.b()));
}
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