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/*
* Copyright (C) 2021 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.
*/
#pragma once
#include <android-base/logging.h>
// hwc2 types
#include <hardware/hwcomposer2.h>
// new hwc3 types used by exynosdisplay
#include "ExynosHwc3Types.h"
// aidl types
#include "include/IComposerHal.h"
namespace aidl::android::hardware::graphics::composer3::impl {
// hwc2 to aidl conversion
namespace h2a {
template <typename T, typename U>
inline void translate(const T& in, U& out) {
out = static_cast<U>(in);
}
template <typename T, typename U>
inline void translate(const std::vector<T>& in, std::vector<U>& out) {
out.clear();
for (auto const &t : in) {
U u;
translate(t, u);
out.emplace_back(std::move(u));
}
}
template<>
inline void translate(const hwc_vsync_period_change_timeline_t& in,
VsyncPeriodChangeTimeline& out) {
out.newVsyncAppliedTimeNanos = in.newVsyncAppliedTimeNanos;
out.refreshRequired = in.refreshRequired;
out.refreshTimeNanos = in.refreshTimeNanos;
}
template<>
inline void translate(const int32_t& fd, ndk::ScopedFileDescriptor& sfd) {
// ownership of fd is transferred to sfd
sfd = ndk::ScopedFileDescriptor(fd);
}
template<>
inline void translate(const hwc_client_target_property& in, ClientTargetProperty& out) {
translate(in.pixelFormat, out.pixelFormat);
translate(in.dataspace, out.dataspace);
}
template<>
inline void translate(const HwcMountOrientation& in, common::Transform& out) {
switch (in) {
case HwcMountOrientation::ROT_0:
out = common::Transform::NONE;
break;
case HwcMountOrientation::ROT_90:
out = common::Transform::ROT_90;
break;
case HwcMountOrientation::ROT_180:
out = common::Transform::ROT_180;
break;
case HwcMountOrientation::ROT_270:
out = common::Transform::ROT_270;
break;
default:
LOG(WARNING) << "unrecoganized display orientation: " << static_cast<uint32_t>(in);
out = common::Transform::NONE;
break;
}
}
} // namespace h2a
// aidl to hwc2 conversion
namespace a2h {
template <typename T, typename U>
inline void translate(const T& in, U& out) {
out = static_cast<U>(in);
}
template <typename T, typename U>
inline void translate(const std::vector<std::optional<T>>& in, std::vector<U>& out) {
out.clear();
for (auto const &t : in) {
U u;
if (t) {
translate(*t, u);
out.emplace_back(std::move(u));
}
}
}
template <typename T, typename U>
inline void translate(const std::vector<T>& in, std::vector<U>& out) {
out.clear();
for (auto const &t : in) {
U u;
translate(t, u);
out.emplace_back(std::move(u));
}
}
template<>
inline void translate(const common::Rect& in, hwc_rect_t& out) {
out.left = in.left;
out.top = in.top;
out.right =in.right;
out.bottom =in.bottom;
}
template<>
inline void translate(const common::FRect& in, hwc_frect_t& out) {
out.left = in.left;
out.top = in.top;
out.right =in.right;
out.bottom =in.bottom;
}
template <>
inline void translate(const VsyncPeriodChangeConstraints& in,
hwc_vsync_period_change_constraints_t& out) {
out.desiredTimeNanos = in.desiredTimeNanos;
out.seamlessRequired = in.seamlessRequired;
}
template<>
inline void translate(const ndk::ScopedFileDescriptor& in, int32_t& out) {
// it's not defined as const. drop the const to avoid dup
auto& sfd = const_cast<ndk::ScopedFileDescriptor&>(in);
// take the ownership
out = sfd.get();
*sfd.getR() = -1;
}
template<>
inline void translate(const bool& in, hwc2_vsync_t& out) {
// HWC_VSYNC_DISABLE is 2
out = in ? HWC2_VSYNC_ENABLE : HWC2_VSYNC_DISABLE;
}
template<>
inline void translate(const Color& in, hwc_color_t& out) {
const auto floatColorToUint8Clamped = [](float val) -> uint8_t {
const auto intVal = static_cast<uint64_t>(std::round(255.0f * val));
const auto minVal = static_cast<uint64_t>(0);
const auto maxVal = static_cast<uint64_t>(255);
return std::clamp(intVal, minVal, maxVal);
};
out.r = floatColorToUint8Clamped(in.r);
out.g = floatColorToUint8Clamped(in.g);
out.b = floatColorToUint8Clamped(in.b);
out.a = floatColorToUint8Clamped(in.a);
}
} // namespace a2h
} // namespace aidl::android::hardware::graphics::composer3::impl
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