99 lines
4.1 KiB
C++
99 lines
4.1 KiB
C++
/*
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* Copyright 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "shaders/shaders.h"
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#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include <math/mat4.h>
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#include <tonemap/tonemap.h>
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#include <ui/ColorSpace.h>
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#include <cmath>
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namespace android {
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using testing::Contains;
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using testing::HasSubstr;
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struct ShadersTest : public ::testing::Test {};
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namespace {
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MATCHER_P2(UniformEq, name, value, "") {
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return arg.name == name && arg.value == value;
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}
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template <typename T, std::enable_if_t<std::is_trivially_copyable<T>::value, bool> = true>
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std::vector<uint8_t> buildUniformValue(T value) {
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std::vector<uint8_t> result;
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result.resize(sizeof(value));
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std::memcpy(result.data(), &value, sizeof(value));
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return result;
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}
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} // namespace
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TEST_F(ShadersTest, buildLinearEffectUniforms_selectsNoOpGamutMatrices) {
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shaders::LinearEffect effect =
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shaders::LinearEffect{.inputDataspace = ui::Dataspace::V0_SRGB_LINEAR,
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.outputDataspace = ui::Dataspace::V0_SRGB_LINEAR,
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.fakeInputDataspace = ui::Dataspace::UNKNOWN};
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mat4 colorTransform = mat4::scale(vec4(.9, .9, .9, 1.));
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auto uniforms =
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shaders::buildLinearEffectUniforms(effect, colorTransform, 1.f, 1.f, 1.f, nullptr,
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aidl::android::hardware::graphics::composer3::
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RenderIntent::COLORIMETRIC);
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EXPECT_THAT(uniforms, Contains(UniformEq("in_rgbToXyz", buildUniformValue<mat4>(mat4()))));
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EXPECT_THAT(uniforms,
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Contains(UniformEq("in_xyzToRgb", buildUniformValue<mat4>(colorTransform))));
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}
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TEST_F(ShadersTest, buildLinearEffectUniforms_selectsGamutTransformMatrices) {
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shaders::LinearEffect effect =
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shaders::LinearEffect{.inputDataspace = ui::Dataspace::V0_SRGB,
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.outputDataspace = ui::Dataspace::DISPLAY_P3,
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.fakeInputDataspace = ui::Dataspace::UNKNOWN};
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ColorSpace inputColorSpace = ColorSpace::sRGB();
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ColorSpace outputColorSpace = ColorSpace::DisplayP3();
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auto uniforms =
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shaders::buildLinearEffectUniforms(effect, mat4(), 1.f, 1.f, 1.f, nullptr,
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aidl::android::hardware::graphics::composer3::
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RenderIntent::COLORIMETRIC);
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EXPECT_THAT(uniforms,
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Contains(UniformEq("in_rgbToXyz",
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buildUniformValue<mat4>(mat4(inputColorSpace.getRGBtoXYZ())))));
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EXPECT_THAT(uniforms,
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Contains(UniformEq("in_xyzToRgb",
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buildUniformValue<mat4>(mat4(outputColorSpace.getXYZtoRGB())))));
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}
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TEST_F(ShadersTest, buildLinearEffectUniforms_respectsFakeInputDataspace) {
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shaders::LinearEffect effect =
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shaders::LinearEffect{.inputDataspace = ui::Dataspace::V0_SRGB,
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.outputDataspace = ui::Dataspace::DISPLAY_P3,
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.fakeInputDataspace = ui::Dataspace::DISPLAY_P3};
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auto uniforms =
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shaders::buildLinearEffectUniforms(effect, mat4(), 1.f, 1.f, 1.f, nullptr,
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aidl::android::hardware::graphics::composer3::
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RenderIntent::COLORIMETRIC);
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EXPECT_THAT(uniforms, Contains(UniformEq("in_rgbToXyz", buildUniformValue<mat4>(mat4()))));
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EXPECT_THAT(uniforms, Contains(UniformEq("in_xyzToRgb", buildUniformValue<mat4>(mat4()))));
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}
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} // namespace android
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