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#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, pmf.a()));
REPORTER_ASSERT(r, SkScalarNearlyEqual(204.0f, pmf.r()));
REPORTER_ASSERT(r, SkScalarNearlyEqual(153.0f, pmf.g()));
REPORTER_ASSERT(r, SkScalarNearlyEqual( 51.0f, pmf.b()));
REPORTER_ASSERT(r, c == pmf.get());
// Test rounding. (Don't bother testing .5... we don't care which way it goes.)
pmf = SkPMFloat(254.6f, 204.3f, 153.1f, 50.8f);
REPORTER_ASSERT(r, c == pmf.get());
// Test clamping.
SkPMFloat clamped(SkPMFloat(510.0f, 153.0f, 1.0f, -0.2f).clamped());
REPORTER_ASSERT(r, SkScalarNearlyEqual(255.0f, clamped.a()));
REPORTER_ASSERT(r, SkScalarNearlyEqual(153.0f, clamped.r()));
REPORTER_ASSERT(r, SkScalarNearlyEqual( 1.0f, clamped.g()));
REPORTER_ASSERT(r, SkScalarNearlyEqual( 0.0f, clamped.b()));
// Test SkPMFloat <-> Sk4f conversion.
Sk4f fs = clamped;
SkPMFloat scaled = fs.multiply(Sk4f(0.25f));
REPORTER_ASSERT(r, SkScalarNearlyEqual(63.75f, scaled.a()));
REPORTER_ASSERT(r, SkScalarNearlyEqual(38.25f, scaled.r()));
REPORTER_ASSERT(r, SkScalarNearlyEqual( 0.25f, scaled.g()));
REPORTER_ASSERT(r, SkScalarNearlyEqual( 0.00f, scaled.b()));
// Test 4-at-a-time conversions.
SkPMColor colors[4] = { 0xFF000000, 0xFFFF0000, 0xFF00FF00, 0xFF0000FF };
SkPMFloat floats[4];
SkPMFloat::From4PMColors(floats, colors);
SkPMColor back[4];
SkPMFloat::To4PMColors(back, floats);
for (int i = 0; i < 4; i++) {
REPORTER_ASSERT(r, back[i] == colors[i]);
}
SkPMFloat::ClampTo4PMColors(back, floats);
for (int i = 0; i < 4; i++) {
REPORTER_ASSERT(r, back[i] == colors[i]);
}
}
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