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/*
* Copyright 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "shaders/shaders.h"
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <math/mat4.h>
#include <tonemap/tonemap.h>
#include <ui/ColorSpace.h>
#include <cmath>
namespace android {
using testing::Contains;
using testing::HasSubstr;
struct ShadersTest : public ::testing::Test {};
namespace {
MATCHER_P2(UniformEq, name, value, "") {
return arg.name == name && arg.value == value;
}
MATCHER_P(UniformNameEq, name, "") {
return arg.name == name;
}
template <typename T, std::enable_if_t<std::is_trivially_copyable<T>::value, bool> = true>
std::vector<uint8_t> buildUniformValue(T value) {
std::vector<uint8_t> result;
result.resize(sizeof(value));
std::memcpy(result.data(), &value, sizeof(value));
return result;
}
} // namespace
TEST_F(ShadersTest, buildLinearEffectUniforms_selectsNoOpGamutMatrices) {
shaders::LinearEffect effect =
shaders::LinearEffect{.inputDataspace = ui::Dataspace::V0_SRGB_LINEAR,
.outputDataspace = ui::Dataspace::V0_SRGB_LINEAR,
.fakeOutputDataspace = ui::Dataspace::UNKNOWN};
mat4 colorTransform = mat4::scale(vec4(.9, .9, .9, 1.));
auto uniforms =
shaders::buildLinearEffectUniforms(effect, colorTransform, 1.f, 1.f, 1.f, nullptr,
aidl::android::hardware::graphics::composer3::
RenderIntent::COLORIMETRIC);
EXPECT_THAT(uniforms,
Contains(UniformEq("in_rgbToXyz",
buildUniformValue<mat3>(
ColorSpace::linearExtendedSRGB().getRGBtoXYZ()))));
EXPECT_THAT(uniforms,
Contains(UniformEq("in_xyzToSrcRgb",
buildUniformValue<mat3>(
ColorSpace::linearSRGB().getXYZtoRGB()))));
// color transforms are already tested in renderengine's tests
EXPECT_THAT(uniforms, Contains(UniformNameEq("in_colorTransform")));
}
TEST_F(ShadersTest, buildLinearEffectUniforms_selectsGamutTransformMatrices) {
shaders::LinearEffect effect =
shaders::LinearEffect{.inputDataspace = ui::Dataspace::V0_SRGB,
.outputDataspace = ui::Dataspace::DISPLAY_P3,
.fakeOutputDataspace = ui::Dataspace::UNKNOWN};
ColorSpace inputColorSpace = ColorSpace::sRGB();
auto uniforms =
shaders::buildLinearEffectUniforms(effect, mat4(), 1.f, 1.f, 1.f, nullptr,
aidl::android::hardware::graphics::composer3::
RenderIntent::COLORIMETRIC);
EXPECT_THAT(uniforms,
Contains(UniformEq("in_rgbToXyz",
buildUniformValue<mat3>(
ColorSpace::linearExtendedSRGB().getRGBtoXYZ()))));
EXPECT_THAT(uniforms,
Contains(UniformEq("in_xyzToSrcRgb",
buildUniformValue<mat3>(inputColorSpace.getXYZtoRGB()))));
EXPECT_THAT(uniforms, Contains(UniformNameEq("in_colorTransform")));
}
} // namespace android
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