#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]); } }