diff options
author | reed <reed@google.com> | 2016-01-22 00:04:30 -0800 |
---|---|---|
committer | Commit bot <commit-bot@chromium.org> | 2016-01-22 00:04:30 -0800 |
commit | 2a2bdc698460c38ac9e24ba4abdeefec67bcba37 (patch) | |
tree | fd2660e993c369874be1966a95ebc673194aabb4 /tests/SkColor4fTest.cpp | |
parent | 7765000709dc64eb23be7df47d1f995d1f787115 (diff) |
Revert of experiment: float color components (patchset #6 id:100001 of https://codereview.chromium.org/1617813002/ )
Reason for revert:
broke some colormatrix tests
Original issue's description:
> experiment: float color components
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1617813002
>
> Committed: https://skia.googlesource.com/skia/+/353c148d8e8c9031daca34c6f9d6bcc6f08706c7
TBR=fmalita@chromium.org,mtklein@google.com,herb@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:
Review URL: https://codereview.chromium.org/1623453002
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)); - } -} |