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Diffstat (limited to 'tests/SkColor4fTest.cpp')
-rw-r--r-- | tests/SkColor4fTest.cpp | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/tests/SkColor4fTest.cpp b/tests/SkColor4fTest.cpp deleted file mode 100644 index b09b0c479a..0000000000 --- a/tests/SkColor4fTest.cpp +++ /dev/null @@ -1,62 +0,0 @@ -/* - * Copyright 2016 Google Inc. - * - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include "SkColor.h" -#include "SkShader.h" -#include "SkColorMatrixFilter.h" -#include "Test.h" -#include "SkRandom.h" - -DEF_TEST(SkColor4f_FromColor, reporter) { - const struct { - SkColor fC; - SkColor4f fC4; - } recs[] = { - { SK_ColorBLACK, { 1, 0, 0, 0 } }, - { SK_ColorWHITE, { 1, 1, 1, 1 } }, - { SK_ColorRED, { 1, 1, 0, 0 } }, - { SK_ColorGREEN, { 1, 0, 1, 0 } }, - { SK_ColorBLUE, { 1, 0, 0, 1 } }, - { 0, { 0, 0, 0, 0 } }, - { 0x55AAFF00, { 1/3.0f, 2/3.0f, 1, 0 } }, - }; - - for (const auto& r : recs) { - SkColor4f c4 = SkColor4f::FromColor(r.fC); - REPORTER_ASSERT(reporter, c4 == r.fC4); - } -} - -static bool nearly_equal(float a, float b) { - const float kTolerance = 1.0f / (1 << 20); - return fabsf(a - b) < kTolerance; -} - -DEF_TEST(SkColor4f_premul, reporter) { - SkRandom rand; - - for (int i = 0; i < 1000000; ++i) { - // First just test opaque colors, so that the premul should be exact - SkColor4f c4 { - 1, rand.nextUScalar1(), rand.nextUScalar1(), rand.nextUScalar1() - }; - SkPM4f pm4 = c4.premul(); - REPORTER_ASSERT(reporter, pm4.fVec[SK_A_INDEX] == c4.fA); - REPORTER_ASSERT(reporter, pm4.fVec[SK_R_INDEX] == c4.fA * c4.fR); - REPORTER_ASSERT(reporter, pm4.fVec[SK_G_INDEX] == c4.fA * c4.fG); - REPORTER_ASSERT(reporter, pm4.fVec[SK_B_INDEX] == c4.fA * c4.fB); - - // We compare with a tolerance, in case our premul multiply is implemented at slightly - // different precision than the test code. - c4.fA = rand.nextUScalar1(); - pm4 = c4.premul(); - REPORTER_ASSERT(reporter, pm4.fVec[SK_A_INDEX] == c4.fA); - REPORTER_ASSERT(reporter, nearly_equal(pm4.fVec[SK_R_INDEX], c4.fA * c4.fR)); - REPORTER_ASSERT(reporter, nearly_equal(pm4.fVec[SK_G_INDEX], c4.fA * c4.fG)); - REPORTER_ASSERT(reporter, nearly_equal(pm4.fVec[SK_B_INDEX], c4.fA * c4.fB)); - } -} |