79a7542081
- reverse sense of Blend mixer to be (dst, src, mode) - change pipeline register convention to be (dst, src) Bug: skia: Change-Id: I1f1d990001ad941cb8d44e1488c5f14077e181f8 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/201386 Commit-Queue: Mike Reed <reed@google.com> Reviewed-by: Mike Klein <mtklein@google.com>
62 lines
2.4 KiB
C++
62 lines
2.4 KiB
C++
/*
|
|
* Copyright 2019 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include "SkMixer.h"
|
|
#include "Test.h"
|
|
#include "SkColorData.h"
|
|
#include "SkMixerBase.h"
|
|
|
|
static void check_color(skiatest::Reporter* reporter,
|
|
const SkPMColor4f& result, const SkPMColor4f& expected) {
|
|
const float tol = 1/510.f; // made up
|
|
for (int i = 0; i < 4; ++i) {
|
|
REPORTER_ASSERT(reporter, SkScalarNearlyEqual(result[i], expected[i], tol));
|
|
}
|
|
}
|
|
|
|
static void check_mixer(skiatest::Reporter* reporter, sk_sp<SkMixer> mixer,
|
|
const SkPMColor4f& a, const SkPMColor4f& b, const SkPMColor4f& expected) {
|
|
SkPMColor4f result = as_MB(mixer)->test_mix(a, b);
|
|
check_color(reporter, result, expected);
|
|
|
|
auto data = mixer->serialize();
|
|
auto m2 = SkMixerBase::Deserialize(data->data(), data->size());
|
|
SkPMColor4f r2 = as_MB(m2)->test_mix(a, b);
|
|
REPORTER_ASSERT(reporter, result == r2);
|
|
}
|
|
|
|
DEF_TEST(Mixer, r) {
|
|
const SkPMColor4f transparent = {0, 0, 0, 0};
|
|
const SkPMColor4f red = {1, 0, 0, 1};
|
|
const SkPMColor4f magenta = {1, 0, 1, 1};
|
|
const SkPMColor4f blue = {0, 0, 1, 1};
|
|
|
|
auto first = SkMixer::MakeFirst();
|
|
auto second = SkMixer::MakeSecond();
|
|
check_mixer(r, first, red, blue, red);
|
|
check_mixer(r, second, red, blue, blue);
|
|
|
|
check_mixer(r, first->makeReverse(), red, blue, blue);
|
|
check_mixer(r, second->makeReverse(), red, blue, red);
|
|
|
|
check_mixer(r, SkMixer::MakeLerp(0), red, blue, red);
|
|
check_mixer(r, SkMixer::MakeLerp(0.0001f), red, blue, red);
|
|
check_mixer(r, SkMixer::MakeLerp(0.5f), red, blue, {0.5f, 0, 0.5f, 1});
|
|
check_mixer(r, SkMixer::MakeLerp(0.9999f), red, blue, blue);
|
|
check_mixer(r, SkMixer::MakeLerp(1), red, blue, blue);
|
|
|
|
check_mixer(r, SkMixer::MakeBlend(SkBlendMode::kClear), red, blue, transparent);
|
|
check_mixer(r, SkMixer::MakeBlend(SkBlendMode::kSrc), red, blue, blue);
|
|
check_mixer(r, SkMixer::MakeBlend(SkBlendMode::kDst), red, blue, red);
|
|
check_mixer(r, SkMixer::MakeBlend(SkBlendMode::kPlus), red, blue, magenta);
|
|
|
|
// mx should average the results of Plus and Clear
|
|
auto mx = SkMixer::MakeLerp(0.5f)->makeMerge(SkMixer::MakeBlend(SkBlendMode::kPlus),
|
|
SkMixer::MakeConst(0));
|
|
check_mixer(r, mx, red, blue, {0.5f, 0, 0.5f, 0.5f});
|
|
}
|