SF: use AIDL composer
Open and use the new AIDL composer if supported by the device
Bug: 198690444
Test: Build
Change-Id: I190170913b2adc980a23b0916817b74777be7c81
diff --git a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
new file mode 100644
index 0000000..0a8cf5b
--- /dev/null
+++ b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
@@ -0,0 +1,1366 @@
+/*
+ * Copyright 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.
+ */
+
+#undef LOG_TAG
+#define LOG_TAG "HwcComposer"
+#define ATRACE_TAG ATRACE_TAG_GRAPHICS
+
+#include "ComposerHal.h"
+
+#include <android/binder_ibinder_platform.h>
+#include <android/binder_manager.h>
+#include <log/log.h>
+#include <utils/Trace.h>
+
+#include <aidl/android/hardware/graphics/composer3/BnComposerCallback.h>
+
+#include <algorithm>
+#include <cinttypes>
+
+namespace android {
+
+using hardware::hidl_handle;
+using hardware::hidl_vec;
+using hardware::Return;
+
+using aidl::android::hardware::graphics::composer3::BnComposerCallback;
+using aidl::android::hardware::graphics::composer3::Capability;
+using aidl::android::hardware::graphics::composer3::PowerMode;
+using aidl::android::hardware::graphics::composer3::VirtualDisplay;
+
+using AidlColorMode = aidl::android::hardware::graphics::composer3::ColorMode;
+using AidlContentType = aidl::android::hardware::graphics::composer3::ContentType;
+using AidlDisplayIdentification =
+ aidl::android::hardware::graphics::composer3::DisplayIdentification;
+using AidlDisplayContentSample = aidl::android::hardware::graphics::composer3::DisplayContentSample;
+using AidlDisplayAttribute = aidl::android::hardware::graphics::composer3::DisplayAttribute;
+using AidlDisplayCapability = aidl::android::hardware::graphics::composer3::DisplayCapability;
+using AidlExecuteCommandsStatus =
+ aidl::android::hardware::graphics::composer3::ExecuteCommandsStatus;
+using AidlHdrCapabilities = aidl::android::hardware::graphics::composer3::HdrCapabilities;
+using AidlPerFrameMetadata = aidl::android::hardware::graphics::composer3::PerFrameMetadata;
+using AidlPerFrameMetadataKey = aidl::android::hardware::graphics::composer3::PerFrameMetadataKey;
+using AidlPerFrameMetadataBlob = aidl::android::hardware::graphics::composer3::PerFrameMetadataBlob;
+using AidlRenderIntent = aidl::android::hardware::graphics::composer3::RenderIntent;
+using AidlVsyncPeriodChangeConstraints =
+ aidl::android::hardware::graphics::composer3::VsyncPeriodChangeConstraints;
+using AidlVsyncPeriodChangeTimeline =
+ aidl::android::hardware::graphics::composer3::VsyncPeriodChangeTimeline;
+using AidlLayerGenericMetadataKey =
+ aidl::android::hardware::graphics::composer3::LayerGenericMetadataKey;
+using AidlDisplayContentSamplingAttributes =
+ aidl::android::hardware::graphics::composer3::DisplayContentSamplingAttributes;
+using AidlFormatColorComponent = aidl::android::hardware::graphics::composer3::FormatColorComponent;
+using AidlDisplayConnectionType =
+ aidl::android::hardware::graphics::composer3::DisplayConnectionType;
+using AidlIComposerClient = aidl::android::hardware::graphics::composer3::IComposerClient;
+
+using AidlColorTransform = aidl::android::hardware::graphics::common::ColorTransform;
+using AidlDataspace = aidl::android::hardware::graphics::common::Dataspace;
+using AidlFRect = aidl::android::hardware::graphics::common::FRect;
+using AidlRect = aidl::android::hardware::graphics::common::Rect;
+using AidlTransform = aidl::android::hardware::graphics::common::Transform;
+
+namespace Hwc2 {
+
+namespace {
+
+template <typename To, typename From>
+To translate(From x) {
+ return static_cast<To>(x);
+}
+
+template <typename To, typename From>
+std::vector<To> translate(const std::vector<From>& in) {
+ std::vector<To> out;
+ out.reserve(in.size());
+ std::transform(in.begin(), in.end(), std::back_inserter(out),
+ [](From x) { return translate<To>(x); });
+ return out;
+}
+
+template <>
+AidlRect translate(IComposerClient::Rect x) {
+ return AidlRect{
+ .left = x.left,
+ .top = x.top,
+ .right = x.right,
+ .bottom = x.bottom,
+ };
+}
+
+template <>
+AidlFRect translate(IComposerClient::FRect x) {
+ return AidlFRect{
+ .left = x.left,
+ .top = x.top,
+ .right = x.right,
+ .bottom = x.bottom,
+ };
+}
+
+template <>
+Color translate(IComposerClient::Color x) {
+ return Color{
+ .r = static_cast<int8_t>(x.r),
+ .g = static_cast<int8_t>(x.g),
+ .b = static_cast<int8_t>(x.b),
+ .a = static_cast<int8_t>(x.a),
+ };
+}
+
+template <>
+AidlPerFrameMetadataBlob translate(IComposerClient::PerFrameMetadataBlob x) {
+ AidlPerFrameMetadataBlob blob;
+ blob.key = translate<AidlPerFrameMetadataKey>(x.key),
+ std::copy(blob.blob.begin(), blob.blob.end(), x.blob.begin());
+ return blob;
+}
+
+template <>
+AidlPerFrameMetadata translate(IComposerClient::PerFrameMetadata x) {
+ return AidlPerFrameMetadata{
+ .key = translate<AidlPerFrameMetadataKey>(x.key),
+ .value = x.value,
+ };
+}
+
+template <>
+DisplayedFrameStats translate(AidlDisplayContentSample x) {
+ return DisplayedFrameStats{
+ .numFrames = static_cast<uint64_t>(x.frameCount),
+ .component_0_sample = translate<uint64_t>(x.sampleComponent0),
+ .component_1_sample = translate<uint64_t>(x.sampleComponent1),
+ .component_2_sample = translate<uint64_t>(x.sampleComponent2),
+ .component_3_sample = translate<uint64_t>(x.sampleComponent3),
+ };
+}
+
+template <>
+AidlVsyncPeriodChangeConstraints translate(IComposerClient::VsyncPeriodChangeConstraints x) {
+ return AidlVsyncPeriodChangeConstraints{
+ .desiredTimeNanos = x.desiredTimeNanos,
+ .seamlessRequired = x.seamlessRequired,
+ };
+}
+
+template <>
+VsyncPeriodChangeTimeline translate(AidlVsyncPeriodChangeTimeline x) {
+ return VsyncPeriodChangeTimeline{
+ .newVsyncAppliedTimeNanos = x.newVsyncAppliedTimeNanos,
+ .refreshRequired = x.refreshRequired,
+ .refreshTimeNanos = x.refreshTimeNanos,
+ };
+}
+
+template <>
+IComposerClient::LayerGenericMetadataKey translate(AidlLayerGenericMetadataKey x) {
+ return IComposerClient::LayerGenericMetadataKey{
+ .name = x.name,
+ .mandatory = x.mandatory,
+ };
+}
+
+mat4 makeMat4(std::vector<float> in) {
+ return mat4(static_cast<const float*>(in.data()));
+}
+
+} // namespace
+
+class AidlIComposerCallbackWrapper : public BnComposerCallback {
+public:
+ AidlIComposerCallbackWrapper(sp<V2_4::IComposerCallback> callback)
+ : mCallback(std::move(callback)) {}
+
+ ::ndk::ScopedAStatus onHotplug(int64_t in_display, bool in_connected) override {
+ const auto connection = in_connected ? V2_4::IComposerCallback::Connection::CONNECTED
+ : V2_4::IComposerCallback::Connection::DISCONNECTED;
+ mCallback->onHotplug(translate<Display>(in_display), connection);
+ return ::ndk::ScopedAStatus::ok();
+ }
+
+ ::ndk::ScopedAStatus onRefresh(int64_t in_display) override {
+ mCallback->onRefresh(translate<Display>(in_display));
+ return ::ndk::ScopedAStatus::ok();
+ }
+ ::ndk::ScopedAStatus onSeamlessPossible(int64_t in_display) override {
+ mCallback->onSeamlessPossible(translate<Display>(in_display));
+ return ::ndk::ScopedAStatus::ok();
+ }
+ ::ndk::ScopedAStatus onVsync(int64_t in_display, int64_t in_timestamp,
+ int32_t in_vsyncPeriodNanos) override {
+ mCallback->onVsync_2_4(translate<Display>(in_display), in_timestamp,
+ static_cast<uint32_t>(in_vsyncPeriodNanos));
+ return ::ndk::ScopedAStatus::ok();
+ }
+ ::ndk::ScopedAStatus onVsyncPeriodTimingChanged(
+ int64_t in_display, const AidlVsyncPeriodChangeTimeline& in_updatedTimeline) override {
+ mCallback->onVsyncPeriodTimingChanged(translate<Display>(in_display),
+ translate<V2_4::VsyncPeriodChangeTimeline>(
+ in_updatedTimeline));
+ return ::ndk::ScopedAStatus::ok();
+ }
+
+private:
+ sp<V2_4::IComposerCallback> mCallback;
+};
+
+namespace impl {
+
+AidlComposer::AidlComposer(const std::string& serviceName) : mWriter(kWriterInitialSize) {
+ // This only waits if the service is actually declared
+ mAidlComposer = AidlIComposer::fromBinder(ndk::SpAIBinder(
+ AServiceManager_waitForService((AidlIComposer::descriptor + serviceName).c_str())));
+ if (!mAidlComposer) {
+ LOG_ALWAYS_FATAL("Failed to get AIDL composer service");
+ return;
+ }
+
+ if (!mAidlComposer->createClient(&mAidlComposerClient).isOk()) {
+ LOG_ALWAYS_FATAL("Can't create AidlComposerClient, fallback to HIDL");
+ return;
+ }
+
+ ALOGI("Loaded AIDL composer3 HAL service");
+}
+
+AidlComposer::~AidlComposer() = default;
+
+std::vector<IComposer::Capability> AidlComposer::getCapabilities() {
+ std::vector<Capability> capabilities;
+ const auto status = mAidlComposer->getCapabilities(&capabilities);
+ if (!status.isOk()) {
+ ALOGE("getCapabilities failed %s", status.getDescription().c_str());
+ return {};
+ }
+ return translate<IComposer::Capability>(capabilities);
+}
+
+std::string AidlComposer::dumpDebugInfo() {
+ std::string info;
+ const auto status = mAidlComposer->dumpDebugInfo(&info);
+ if (!status.isOk()) {
+ ALOGE("dumpDebugInfo failed %s", status.getDescription().c_str());
+ return {};
+ }
+ return info;
+}
+
+void AidlComposer::registerCallback(const sp<IComposerCallback>& callback) {
+ if (mAidlComposerCallback) {
+ ALOGE("Callback already registered");
+ }
+ mAidlComposerCallback = std::make_shared<AidlIComposerCallbackWrapper>(callback);
+ AIBinder_setMinSchedulerPolicy(mAidlComposerCallback->asBinder().get(), SCHED_FIFO, 2);
+
+ const auto status = mAidlComposerClient->registerCallback(mAidlComposerCallback);
+ if (!status.isOk()) {
+ ALOGE("registerCallback failed %s", status.getDescription().c_str());
+ }
+}
+
+void AidlComposer::resetCommands() {
+ mWriter.reset();
+}
+
+Error AidlComposer::executeCommands() {
+ return execute();
+}
+
+uint32_t AidlComposer::getMaxVirtualDisplayCount() {
+ int32_t count = 0;
+ const auto status = mAidlComposerClient->getMaxVirtualDisplayCount(&count);
+ if (!status.isOk()) {
+ ALOGE("getMaxVirtualDisplayCount failed %s", status.getDescription().c_str());
+ return 0;
+ }
+ return static_cast<uint32_t>(count);
+}
+
+Error AidlComposer::createVirtualDisplay(uint32_t width, uint32_t height, PixelFormat* format,
+ Display* outDisplay) {
+ using AidlPixelFormat = aidl::android::hardware::graphics::common::PixelFormat;
+ const int32_t bufferSlotCount = 1;
+ VirtualDisplay virtualDisplay;
+ const auto status =
+ mAidlComposerClient->createVirtualDisplay(static_cast<int32_t>(width),
+ static_cast<int32_t>(height),
+ static_cast<AidlPixelFormat>(*format),
+ bufferSlotCount, &virtualDisplay);
+
+ if (!status.isOk()) {
+ ALOGE("createVirtualDisplay failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+
+ *outDisplay = translate<Display>(virtualDisplay.display);
+ *format = static_cast<PixelFormat>(virtualDisplay.format);
+ return Error::NONE;
+}
+
+Error AidlComposer::destroyVirtualDisplay(Display display) {
+ const auto status = mAidlComposerClient->destroyVirtualDisplay(translate<int64_t>(display));
+ if (!status.isOk()) {
+ ALOGE("destroyVirtualDisplay failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ return Error::NONE;
+}
+
+Error AidlComposer::acceptDisplayChanges(Display display) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.acceptDisplayChanges();
+ return Error::NONE;
+}
+
+Error AidlComposer::createLayer(Display display, Layer* outLayer) {
+ int64_t layer;
+ const auto status = mAidlComposerClient->createLayer(translate<int64_t>(display),
+ kMaxLayerBufferCount, &layer);
+ if (!status.isOk()) {
+ ALOGE("createLayer failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+
+ *outLayer = translate<Layer>(layer);
+ return Error::NONE;
+}
+
+Error AidlComposer::destroyLayer(Display display, Layer layer) {
+ const auto status = mAidlComposerClient->destroyLayer(translate<int64_t>(display),
+ translate<int64_t>(layer));
+ if (!status.isOk()) {
+ ALOGE("destroyLayer failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ return Error::NONE;
+}
+
+Error AidlComposer::getActiveConfig(Display display, Config* outConfig) {
+ int32_t config;
+ const auto status = mAidlComposerClient->getActiveConfig(translate<int64_t>(display), &config);
+ if (!status.isOk()) {
+ ALOGE("getActiveConfig failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ *outConfig = translate<Config>(config);
+ return Error::NONE;
+}
+
+Error AidlComposer::getChangedCompositionTypes(
+ Display display, std::vector<Layer>* outLayers,
+ std::vector<IComposerClient::Composition>* outTypes) {
+ mReader.takeChangedCompositionTypes(display, outLayers, outTypes);
+ return Error::NONE;
+}
+
+Error AidlComposer::getColorModes(Display display, std::vector<ColorMode>* outModes) {
+ std::vector<AidlColorMode> modes;
+ const auto status = mAidlComposerClient->getColorModes(translate<int64_t>(display), &modes);
+ if (!status.isOk()) {
+ ALOGE("getColorModes failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ *outModes = translate<ColorMode>(modes);
+ return Error::NONE;
+}
+
+Error AidlComposer::getDisplayAttribute(Display display, Config config,
+ IComposerClient::Attribute attribute, int32_t* outValue) {
+ const auto status =
+ mAidlComposerClient->getDisplayAttribute(translate<int64_t>(display),
+ translate<int32_t>(config),
+ static_cast<AidlDisplayAttribute>(attribute),
+ outValue);
+ if (!status.isOk()) {
+ ALOGE("getDisplayAttribute failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ return Error::NONE;
+}
+
+Error AidlComposer::getDisplayConfigs(Display display, std::vector<Config>* outConfigs) {
+ std::vector<int32_t> configs;
+ const auto status =
+ mAidlComposerClient->getDisplayConfigs(translate<int64_t>(display), &configs);
+ if (!status.isOk()) {
+ ALOGE("getDisplayConfigs failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ *outConfigs = translate<Config>(configs);
+ return Error::NONE;
+}
+
+Error AidlComposer::getDisplayName(Display display, std::string* outName) {
+ const auto status = mAidlComposerClient->getDisplayName(translate<int64_t>(display), outName);
+ if (!status.isOk()) {
+ ALOGE("getDisplayName failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ return Error::NONE;
+}
+
+Error AidlComposer::getDisplayRequests(Display display, uint32_t* outDisplayRequestMask,
+ std::vector<Layer>* outLayers,
+ std::vector<uint32_t>* outLayerRequestMasks) {
+ mReader.takeDisplayRequests(display, outDisplayRequestMask, outLayers, outLayerRequestMasks);
+ return Error::NONE;
+}
+
+Error AidlComposer::getDozeSupport(Display display, bool* outSupport) {
+ const auto status =
+ mAidlComposerClient->getDozeSupport(translate<int64_t>(display), outSupport);
+ if (!status.isOk()) {
+ ALOGE("getDozeSupport failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ return Error::NONE;
+}
+
+Error AidlComposer::getHdrCapabilities(Display display, std::vector<Hdr>* outTypes,
+ float* outMaxLuminance, float* outMaxAverageLuminance,
+ float* outMinLuminance) {
+ AidlHdrCapabilities capabilities;
+ const auto status =
+ mAidlComposerClient->getHdrCapabilities(translate<int64_t>(display), &capabilities);
+ if (!status.isOk()) {
+ ALOGE("getHdrCapabilities failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+
+ *outTypes = translate<Hdr>(capabilities.types);
+ *outMaxLuminance = capabilities.maxLuminance;
+ *outMaxAverageLuminance = capabilities.maxAverageLuminance;
+ *outMinLuminance = capabilities.minLuminance;
+ return Error::NONE;
+}
+
+Error AidlComposer::getReleaseFences(Display display, std::vector<Layer>* outLayers,
+ std::vector<int>* outReleaseFences) {
+ mReader.takeReleaseFences(display, outLayers, outReleaseFences);
+ return Error::NONE;
+}
+
+Error AidlComposer::presentDisplay(Display display, int* outPresentFence) {
+ ATRACE_NAME("HwcPresentDisplay");
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.presentDisplay();
+
+ Error error = execute();
+ if (error != Error::NONE) {
+ return error;
+ }
+
+ mReader.takePresentFence(display, outPresentFence);
+
+ return Error::NONE;
+}
+
+Error AidlComposer::setActiveConfig(Display display, Config config) {
+ const auto status = mAidlComposerClient->setActiveConfig(translate<int64_t>(display),
+ translate<int32_t>(config));
+ if (!status.isOk()) {
+ ALOGE("setActiveConfig failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ return Error::NONE;
+}
+
+Error AidlComposer::setClientTarget(Display display, uint32_t slot, const sp<GraphicBuffer>& target,
+ int acquireFence, Dataspace dataspace,
+ const std::vector<IComposerClient::Rect>& damage) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+
+ const native_handle_t* handle = nullptr;
+ if (target.get()) {
+ handle = target->getNativeBuffer()->handle;
+ }
+
+ mWriter.setClientTarget(slot, handle, acquireFence,
+ translate<aidl::android::hardware::graphics::common::Dataspace>(
+ dataspace),
+ translate<AidlRect>(damage));
+ return Error::NONE;
+}
+
+Error AidlComposer::setColorMode(Display display, ColorMode mode, RenderIntent renderIntent) {
+ const auto status =
+ mAidlComposerClient->setColorMode(translate<int64_t>(display),
+ translate<AidlColorMode>(mode),
+ translate<AidlRenderIntent>(renderIntent));
+ if (!status.isOk()) {
+ ALOGE("setColorMode failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ return Error::NONE;
+}
+
+Error AidlComposer::setColorTransform(Display display, const float* matrix, ColorTransform hint) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.setColorTransform(matrix, translate<AidlColorTransform>(hint));
+ return Error::NONE;
+}
+
+Error AidlComposer::setOutputBuffer(Display display, const native_handle_t* buffer,
+ int releaseFence) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.setOutputBuffer(0, buffer, dup(releaseFence));
+ return Error::NONE;
+}
+
+Error AidlComposer::setPowerMode(Display display, IComposerClient::PowerMode mode) {
+ const auto status = mAidlComposerClient->setPowerMode(translate<int64_t>(display),
+ translate<PowerMode>(mode));
+ if (!status.isOk()) {
+ ALOGE("setPowerMode failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ return Error::NONE;
+}
+
+Error AidlComposer::setVsyncEnabled(Display display, IComposerClient::Vsync enabled) {
+ const bool enableVsync = enabled == IComposerClient::Vsync::ENABLE;
+ const auto status =
+ mAidlComposerClient->setVsyncEnabled(translate<int64_t>(display), enableVsync);
+ if (!status.isOk()) {
+ ALOGE("setVsyncEnabled failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ return Error::NONE;
+}
+
+Error AidlComposer::setClientTargetSlotCount(Display display) {
+ const int32_t bufferSlotCount = BufferQueue::NUM_BUFFER_SLOTS;
+ const auto status = mAidlComposerClient->setClientTargetSlotCount(translate<int64_t>(display),
+ bufferSlotCount);
+ if (!status.isOk()) {
+ ALOGE("setClientTargetSlotCount failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ return Error::NONE;
+}
+
+Error AidlComposer::validateDisplay(Display display, uint32_t* outNumTypes,
+ uint32_t* outNumRequests) {
+ ATRACE_NAME("HwcValidateDisplay");
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.validateDisplay();
+
+ Error error = execute();
+ if (error != Error::NONE) {
+ return error;
+ }
+
+ mReader.hasChanges(display, outNumTypes, outNumRequests);
+
+ return Error::NONE;
+}
+
+Error AidlComposer::presentOrValidateDisplay(Display display, uint32_t* outNumTypes,
+ uint32_t* outNumRequests, int* outPresentFence,
+ uint32_t* state) {
+ ATRACE_NAME("HwcPresentOrValidateDisplay");
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.presentOrvalidateDisplay();
+
+ Error error = execute();
+ if (error != Error::NONE) {
+ return error;
+ }
+
+ mReader.takePresentOrValidateStage(display, state);
+
+ if (*state == 1) { // Present succeeded
+ mReader.takePresentFence(display, outPresentFence);
+ }
+
+ if (*state == 0) { // Validate succeeded.
+ mReader.hasChanges(display, outNumTypes, outNumRequests);
+ }
+
+ return Error::NONE;
+}
+
+Error AidlComposer::setCursorPosition(Display display, Layer layer, int32_t x, int32_t y) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerCursorPosition(x, y);
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerBuffer(Display display, Layer layer, uint32_t slot,
+ const sp<GraphicBuffer>& buffer, int acquireFence) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+
+ const native_handle_t* handle = nullptr;
+ if (buffer.get()) {
+ handle = buffer->getNativeBuffer()->handle;
+ }
+
+ mWriter.setLayerBuffer(slot, handle, acquireFence);
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerSurfaceDamage(Display display, Layer layer,
+ const std::vector<IComposerClient::Rect>& damage) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerSurfaceDamage(translate<AidlRect>(damage));
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerBlendMode(Display display, Layer layer,
+ IComposerClient::BlendMode mode) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerBlendMode(translate<BlendMode>(mode));
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerColor(Display display, Layer layer,
+ const IComposerClient::Color& color) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerColor(translate<Color>(color));
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerCompositionType(Display display, Layer layer,
+ IComposerClient::Composition type) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerCompositionType(translate<Composition>(type));
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerDataspace(Display display, Layer layer, Dataspace dataspace) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerDataspace(translate<AidlDataspace>(dataspace));
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerDisplayFrame(Display display, Layer layer,
+ const IComposerClient::Rect& frame) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerDisplayFrame(translate<AidlRect>(frame));
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerPlaneAlpha(Display display, Layer layer, float alpha) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerPlaneAlpha(alpha);
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerSidebandStream(Display display, Layer layer,
+ const native_handle_t* stream) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerSidebandStream(stream);
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerSourceCrop(Display display, Layer layer,
+ const IComposerClient::FRect& crop) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerSourceCrop(translate<AidlFRect>(crop));
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerTransform(Display display, Layer layer, Transform transform) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerTransform(translate<AidlTransform>(transform));
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerVisibleRegion(Display display, Layer layer,
+ const std::vector<IComposerClient::Rect>& visible) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerVisibleRegion(translate<AidlRect>(visible));
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerZOrder(Display display, Layer layer, uint32_t z) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerZOrder(z);
+ return Error::NONE;
+}
+
+Error AidlComposer::execute() {
+ // prepare input command queue
+ bool queueChanged = false;
+ int32_t commandLength = 0;
+ std::vector<aidl::android::hardware::common::NativeHandle> commandHandles;
+ if (!mWriter.writeQueue(&queueChanged, &commandLength, &commandHandles)) {
+ mWriter.reset();
+ return Error::NO_RESOURCES;
+ }
+
+ // set up new input command queue if necessary
+ if (queueChanged) {
+ const auto status = mAidlComposerClient->setInputCommandQueue(mWriter.getMQDescriptor());
+ if (!status.isOk()) {
+ ALOGE("setInputCommandQueue failed %s", status.getDescription().c_str());
+ mWriter.reset();
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ }
+
+ if (commandLength == 0) {
+ mWriter.reset();
+ return Error::NONE;
+ }
+
+ AidlExecuteCommandsStatus commandStatus;
+ auto status =
+ mAidlComposerClient->executeCommands(commandLength, commandHandles, &commandStatus);
+ // executeCommands can fail because of out-of-fd and we do not want to
+ // abort() in that case
+ if (!status.isOk()) {
+ ALOGE("executeCommands failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+
+ // set up new output command queue if necessary
+ if (commandStatus.queueChanged) {
+ ::aidl::android::hardware::common::fmq::MQDescriptor<
+ int32_t, ::aidl::android::hardware::common::fmq::SynchronizedReadWrite>
+ outputCommandQueue;
+ status = mAidlComposerClient->getOutputCommandQueue(&outputCommandQueue);
+ if (!status.isOk()) {
+ ALOGE("getOutputCommandQueue failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+
+ mReader.setMQDescriptor(outputCommandQueue);
+ }
+
+ Error error;
+ if (mReader.readQueue(commandStatus.length, std::move(commandStatus.handles))) {
+ error = static_cast<Error>(mReader.parse());
+ mReader.reset();
+ } else {
+ error = Error::NO_RESOURCES;
+ }
+
+ if (error == Error::NONE) {
+ std::vector<AidlCommandReader::CommandError> commandErrors = mReader.takeErrors();
+
+ for (const auto& cmdErr : commandErrors) {
+ auto command = mWriter.getCommand(cmdErr.location);
+ if (command == Command::VALIDATE_DISPLAY || command == Command::PRESENT_DISPLAY ||
+ command == Command::PRESENT_OR_VALIDATE_DISPLAY) {
+ error = cmdErr.error;
+ } else {
+ ALOGW("command 0x%x generated error %d", command, cmdErr.error);
+ }
+ }
+ }
+
+ mWriter.reset();
+
+ return error;
+}
+
+Error AidlComposer::setLayerPerFrameMetadata(
+ Display display, Layer layer,
+ const std::vector<IComposerClient::PerFrameMetadata>& perFrameMetadatas) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerPerFrameMetadata(translate<AidlPerFrameMetadata>(perFrameMetadatas));
+ return Error::NONE;
+}
+
+std::vector<IComposerClient::PerFrameMetadataKey> AidlComposer::getPerFrameMetadataKeys(
+ Display display) {
+ std::vector<AidlPerFrameMetadataKey> keys;
+ const auto status =
+ mAidlComposerClient->getPerFrameMetadataKeys(translate<int64_t>(display), &keys);
+ if (!status.isOk()) {
+ ALOGE("getPerFrameMetadataKeys failed %s", status.getDescription().c_str());
+ return {};
+ }
+ return translate<IComposerClient::PerFrameMetadataKey>(keys);
+}
+
+Error AidlComposer::getRenderIntents(Display display, ColorMode colorMode,
+ std::vector<RenderIntent>* outRenderIntents) {
+ std::vector<AidlRenderIntent> renderIntents;
+ const auto status = mAidlComposerClient->getRenderIntents(translate<int64_t>(display),
+ translate<AidlColorMode>(colorMode),
+ &renderIntents);
+ if (!status.isOk()) {
+ ALOGE("getRenderIntents failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ *outRenderIntents = translate<RenderIntent>(renderIntents);
+ return Error::NONE;
+}
+
+Error AidlComposer::getDataspaceSaturationMatrix(Dataspace dataspace, mat4* outMatrix) {
+ std::vector<float> matrix;
+ const auto status =
+ mAidlComposerClient->getDataspaceSaturationMatrix(translate<AidlDataspace>(dataspace),
+ &matrix);
+ if (!status.isOk()) {
+ ALOGE("getDataspaceSaturationMatrix failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ *outMatrix = makeMat4(matrix);
+ return Error::NONE;
+}
+
+Error AidlComposer::getDisplayIdentificationData(Display display, uint8_t* outPort,
+ std::vector<uint8_t>* outData) {
+ AidlDisplayIdentification displayIdentification;
+ const auto status =
+ mAidlComposerClient->getDisplayIdentificationData(translate<int64_t>(display),
+ &displayIdentification);
+ if (!status.isOk()) {
+ ALOGE("getDisplayIdentificationData failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+
+ *outPort = static_cast<uint8_t>(displayIdentification.port);
+ *outData = displayIdentification.data;
+
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerColorTransform(Display display, Layer layer, const float* matrix) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerColorTransform(matrix);
+ return Error::NONE;
+}
+
+Error AidlComposer::getDisplayedContentSamplingAttributes(Display display, PixelFormat* outFormat,
+ Dataspace* outDataspace,
+ uint8_t* outComponentMask) {
+ if (!outFormat || !outDataspace || !outComponentMask) {
+ return Error::BAD_PARAMETER;
+ }
+
+ AidlDisplayContentSamplingAttributes attributes;
+ const auto status =
+ mAidlComposerClient->getDisplayedContentSamplingAttributes(translate<int64_t>(display),
+ &attributes);
+ if (!status.isOk()) {
+ ALOGE("getDisplayedContentSamplingAttributes failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+
+ *outFormat = translate<PixelFormat>(attributes.format);
+ *outDataspace = translate<Dataspace>(attributes.dataspace);
+ *outComponentMask = static_cast<uint8_t>(attributes.componentMask);
+ return Error::NONE;
+}
+
+Error AidlComposer::setDisplayContentSamplingEnabled(Display display, bool enabled,
+ uint8_t componentMask, uint64_t maxFrames) {
+ const auto status =
+ mAidlComposerClient
+ ->setDisplayedContentSamplingEnabled(translate<int64_t>(display), enabled,
+ static_cast<AidlFormatColorComponent>(
+ componentMask),
+ static_cast<int64_t>(maxFrames));
+ if (!status.isOk()) {
+ ALOGE("setDisplayedContentSamplingEnabled failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ return Error::NONE;
+}
+
+Error AidlComposer::getDisplayedContentSample(Display display, uint64_t maxFrames,
+ uint64_t timestamp, DisplayedFrameStats* outStats) {
+ if (!outStats) {
+ return Error::BAD_PARAMETER;
+ }
+
+ AidlDisplayContentSample sample;
+ const auto status =
+ mAidlComposerClient->getDisplayedContentSample(translate<int64_t>(display),
+ static_cast<int64_t>(maxFrames),
+ static_cast<int64_t>(timestamp),
+ &sample);
+ if (!status.isOk()) {
+ ALOGE("getDisplayedContentSample failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ *outStats = translate<DisplayedFrameStats>(sample);
+ return Error::NONE;
+}
+
+Error AidlComposer::setLayerPerFrameMetadataBlobs(
+ Display display, Layer layer,
+ const std::vector<IComposerClient::PerFrameMetadataBlob>& metadata) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerPerFrameMetadataBlobs(translate<AidlPerFrameMetadataBlob>(metadata));
+ return Error::NONE;
+}
+
+Error AidlComposer::setDisplayBrightness(Display display, float brightness) {
+ const auto status =
+ mAidlComposerClient->setDisplayBrightness(translate<int64_t>(display), brightness);
+ if (!status.isOk()) {
+ ALOGE("setDisplayBrightness failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ return Error::NONE;
+}
+
+Error AidlComposer::getDisplayCapabilities(Display display,
+ std::vector<DisplayCapability>* outCapabilities) {
+ std::vector<AidlDisplayCapability> capabilities;
+ const auto status =
+ mAidlComposerClient->getDisplayCapabilities(translate<int64_t>(display), &capabilities);
+ if (!status.isOk()) {
+ ALOGE("getDisplayCapabilities failed %s", status.getDescription().c_str());
+ return static_cast<Error>(status.getServiceSpecificError());
+ }
+ *outCapabilities = translate<DisplayCapability>(capabilities);
+ return Error::NONE;
+}
+
+V2_4::Error AidlComposer::getDisplayConnectionType(
+ Display display, IComposerClient::DisplayConnectionType* outType) {
+ AidlDisplayConnectionType type;
+ const auto status =
+ mAidlComposerClient->getDisplayConnectionType(translate<int64_t>(display), &type);
+ if (!status.isOk()) {
+ ALOGE("getDisplayConnectionType failed %s", status.getDescription().c_str());
+ return static_cast<V2_4::Error>(status.getServiceSpecificError());
+ }
+ *outType = translate<IComposerClient::DisplayConnectionType>(type);
+ return V2_4::Error::NONE;
+}
+
+V2_4::Error AidlComposer::getDisplayVsyncPeriod(Display display, VsyncPeriodNanos* outVsyncPeriod) {
+ int32_t vsyncPeriod;
+ const auto status =
+ mAidlComposerClient->getDisplayVsyncPeriod(translate<int64_t>(display), &vsyncPeriod);
+ if (!status.isOk()) {
+ ALOGE("getDisplayVsyncPeriod failed %s", status.getDescription().c_str());
+ return static_cast<V2_4::Error>(status.getServiceSpecificError());
+ }
+ *outVsyncPeriod = translate<VsyncPeriodNanos>(vsyncPeriod);
+ return V2_4::Error::NONE;
+}
+
+V2_4::Error AidlComposer::setActiveConfigWithConstraints(
+ Display display, Config config,
+ const IComposerClient::VsyncPeriodChangeConstraints& vsyncPeriodChangeConstraints,
+ VsyncPeriodChangeTimeline* outTimeline) {
+ AidlVsyncPeriodChangeTimeline timeline;
+ const auto status =
+ mAidlComposerClient
+ ->setActiveConfigWithConstraints(translate<int64_t>(display),
+ translate<int32_t>(config),
+ translate<AidlVsyncPeriodChangeConstraints>(
+ vsyncPeriodChangeConstraints),
+ &timeline);
+ if (!status.isOk()) {
+ ALOGE("setActiveConfigWithConstraints failed %s", status.getDescription().c_str());
+ return static_cast<V2_4::Error>(status.getServiceSpecificError());
+ }
+ *outTimeline = translate<VsyncPeriodChangeTimeline>(timeline);
+ return V2_4::Error::NONE;
+}
+
+V2_4::Error AidlComposer::setAutoLowLatencyMode(Display display, bool on) {
+ const auto status = mAidlComposerClient->setAutoLowLatencyMode(translate<int64_t>(display), on);
+ if (!status.isOk()) {
+ ALOGE("setAutoLowLatencyMode failed %s", status.getDescription().c_str());
+ return static_cast<V2_4::Error>(status.getServiceSpecificError());
+ }
+ return V2_4::Error::NONE;
+}
+
+V2_4::Error AidlComposer::getSupportedContentTypes(
+ Display displayId, std::vector<IComposerClient::ContentType>* outSupportedContentTypes) {
+ std::vector<AidlContentType> types;
+ const auto status =
+ mAidlComposerClient->getSupportedContentTypes(translate<int64_t>(displayId), &types);
+ if (!status.isOk()) {
+ ALOGE("getSupportedContentTypes failed %s", status.getDescription().c_str());
+ return static_cast<V2_4::Error>(status.getServiceSpecificError());
+ }
+ *outSupportedContentTypes = translate<IComposerClient::ContentType>(types);
+ return V2_4::Error::NONE;
+}
+
+V2_4::Error AidlComposer::setContentType(Display display,
+ IComposerClient::ContentType contentType) {
+ const auto status =
+ mAidlComposerClient->setContentType(translate<int64_t>(display),
+ translate<AidlContentType>(contentType));
+ if (!status.isOk()) {
+ ALOGE("setContentType failed %s", status.getDescription().c_str());
+ return static_cast<V2_4::Error>(status.getServiceSpecificError());
+ }
+ return V2_4::Error::NONE;
+}
+
+V2_4::Error AidlComposer::setLayerGenericMetadata(Display display, Layer layer,
+ const std::string& key, bool mandatory,
+ const std::vector<uint8_t>& value) {
+ mWriter.selectDisplay(translate<int64_t>(display));
+ mWriter.selectLayer(translate<int64_t>(layer));
+ mWriter.setLayerGenericMetadata(key, mandatory, value);
+ return V2_4::Error::NONE;
+}
+
+V2_4::Error AidlComposer::getLayerGenericMetadataKeys(
+ std::vector<IComposerClient::LayerGenericMetadataKey>* outKeys) {
+ std::vector<AidlLayerGenericMetadataKey> keys;
+ const auto status = mAidlComposerClient->getLayerGenericMetadataKeys(&keys);
+ if (!status.isOk()) {
+ ALOGE("getLayerGenericMetadataKeys failed %s", status.getDescription().c_str());
+ return static_cast<V2_4::Error>(status.getServiceSpecificError());
+ }
+ *outKeys = translate<IComposerClient::LayerGenericMetadataKey>(keys);
+ return V2_4::Error::NONE;
+}
+
+Error AidlComposer::getClientTargetProperty(
+ Display display, IComposerClient::ClientTargetProperty* outClientTargetProperty) {
+ mReader.takeClientTargetProperty(display, outClientTargetProperty);
+ return Error::NONE;
+}
+
+AidlCommandReader::~AidlCommandReader() {
+ resetData();
+}
+
+int AidlCommandReader::parse() {
+ resetData();
+
+ Command command;
+ uint16_t length = 0;
+
+ while (!isEmpty()) {
+ if (!beginCommand(&command, &length)) {
+ break;
+ }
+
+ bool parsed = false;
+ switch (command) {
+ case Command::SELECT_DISPLAY:
+ parsed = parseSelectDisplay(length);
+ break;
+ case Command::SET_ERROR:
+ parsed = parseSetError(length);
+ break;
+ case Command::SET_CHANGED_COMPOSITION_TYPES:
+ parsed = parseSetChangedCompositionTypes(length);
+ break;
+ case Command::SET_DISPLAY_REQUESTS:
+ parsed = parseSetDisplayRequests(length);
+ break;
+ case Command::SET_PRESENT_FENCE:
+ parsed = parseSetPresentFence(length);
+ break;
+ case Command::SET_RELEASE_FENCES:
+ parsed = parseSetReleaseFences(length);
+ break;
+ case Command ::SET_PRESENT_OR_VALIDATE_DISPLAY_RESULT:
+ parsed = parseSetPresentOrValidateDisplayResult(length);
+ break;
+ case Command::SET_CLIENT_TARGET_PROPERTY:
+ parsed = parseSetClientTargetProperty(length);
+ break;
+ default:
+ parsed = false;
+ break;
+ }
+
+ endCommand();
+
+ if (!parsed) {
+ ALOGE("failed to parse command 0x%x length %" PRIu16, command, length);
+ break;
+ }
+ }
+
+ return isEmpty() ? 0 : AidlIComposerClient::EX_NO_RESOURCES;
+}
+
+bool AidlCommandReader::parseSelectDisplay(uint16_t length) {
+ if (length != CommandWriterBase::kSelectDisplayLength) {
+ return false;
+ }
+
+ mCurrentReturnData = &mReturnData[read64()];
+
+ return true;
+}
+
+bool AidlCommandReader::parseSetError(uint16_t length) {
+ if (length != CommandWriterBase::kSetErrorLength) {
+ return false;
+ }
+
+ auto location = read();
+ auto error = static_cast<Error>(readSigned());
+
+ mErrors.emplace_back(CommandError{location, error});
+
+ return true;
+}
+
+bool AidlCommandReader::parseSetChangedCompositionTypes(uint16_t length) {
+ // (layer id [64bit], composition type [32bit]) pairs
+ static constexpr int kCommandWords = 3;
+
+ if (length % kCommandWords != 0 || !mCurrentReturnData) {
+ return false;
+ }
+
+ uint32_t count = length / kCommandWords;
+ mCurrentReturnData->changedLayers.reserve(count);
+ mCurrentReturnData->compositionTypes.reserve(count);
+ while (count > 0) {
+ auto layer = read64();
+ auto type = static_cast<IComposerClient::Composition>(readSigned());
+
+ mCurrentReturnData->changedLayers.push_back(layer);
+ mCurrentReturnData->compositionTypes.push_back(type);
+
+ count--;
+ }
+
+ return true;
+}
+
+bool AidlCommandReader::parseSetDisplayRequests(uint16_t length) {
+ // display requests [32 bit] followed by
+ // (layer id [64bit], layer requests [32bit]) pairs
+ static constexpr int kDisplayRequestsWords = 1;
+ static constexpr int kCommandWords = 3;
+ if (length % kCommandWords != kDisplayRequestsWords || !mCurrentReturnData) {
+ return false;
+ }
+
+ mCurrentReturnData->displayRequests = read();
+
+ uint32_t count = (length - kDisplayRequestsWords) / kCommandWords;
+ mCurrentReturnData->requestedLayers.reserve(count);
+ mCurrentReturnData->requestMasks.reserve(count);
+ while (count > 0) {
+ auto layer = read64();
+ auto layerRequestMask = read();
+
+ mCurrentReturnData->requestedLayers.push_back(layer);
+ mCurrentReturnData->requestMasks.push_back(layerRequestMask);
+
+ count--;
+ }
+
+ return true;
+}
+
+bool AidlCommandReader::parseSetPresentFence(uint16_t length) {
+ if (length != CommandWriterBase::kSetPresentFenceLength || !mCurrentReturnData) {
+ return false;
+ }
+
+ if (mCurrentReturnData->presentFence >= 0) {
+ close(mCurrentReturnData->presentFence);
+ }
+ mCurrentReturnData->presentFence = readFence();
+
+ return true;
+}
+
+bool AidlCommandReader::parseSetReleaseFences(uint16_t length) {
+ // (layer id [64bit], release fence index [32bit]) pairs
+ static constexpr int kCommandWords = 3;
+
+ if (length % kCommandWords != 0 || !mCurrentReturnData) {
+ return false;
+ }
+
+ uint32_t count = length / kCommandWords;
+ mCurrentReturnData->releasedLayers.reserve(count);
+ mCurrentReturnData->releaseFences.reserve(count);
+ while (count > 0) {
+ auto layer = read64();
+ auto fence = readFence();
+
+ mCurrentReturnData->releasedLayers.push_back(layer);
+ mCurrentReturnData->releaseFences.push_back(fence);
+
+ count--;
+ }
+
+ return true;
+}
+
+bool AidlCommandReader::parseSetPresentOrValidateDisplayResult(uint16_t length) {
+ if (length != CommandWriterBase::kPresentOrValidateDisplayResultLength || !mCurrentReturnData) {
+ return false;
+ }
+ mCurrentReturnData->presentOrValidateState = read();
+ return true;
+}
+
+bool AidlCommandReader::parseSetClientTargetProperty(uint16_t length) {
+ if (length != CommandWriterBase::kSetClientTargetPropertyLength || !mCurrentReturnData) {
+ return false;
+ }
+ mCurrentReturnData->clientTargetProperty.pixelFormat = static_cast<PixelFormat>(readSigned());
+ mCurrentReturnData->clientTargetProperty.dataspace = static_cast<Dataspace>(readSigned());
+ return true;
+}
+
+void AidlCommandReader::resetData() {
+ mErrors.clear();
+
+ for (auto& data : mReturnData) {
+ if (data.second.presentFence >= 0) {
+ close(data.second.presentFence);
+ }
+ for (auto fence : data.second.releaseFences) {
+ if (fence >= 0) {
+ close(fence);
+ }
+ }
+ }
+
+ mReturnData.clear();
+ mCurrentReturnData = nullptr;
+}
+
+std::vector<AidlCommandReader::CommandError> AidlCommandReader::takeErrors() {
+ return std::move(mErrors);
+}
+
+bool AidlCommandReader::hasChanges(Display display, uint32_t* outNumChangedCompositionTypes,
+ uint32_t* outNumLayerRequestMasks) const {
+ auto found = mReturnData.find(display);
+ if (found == mReturnData.end()) {
+ *outNumChangedCompositionTypes = 0;
+ *outNumLayerRequestMasks = 0;
+ return false;
+ }
+
+ const ReturnData& data = found->second;
+
+ *outNumChangedCompositionTypes = static_cast<uint32_t>(data.compositionTypes.size());
+ *outNumLayerRequestMasks = static_cast<uint32_t>(data.requestMasks.size());
+
+ return !(data.compositionTypes.empty() && data.requestMasks.empty());
+}
+
+void AidlCommandReader::takeChangedCompositionTypes(
+ Display display, std::vector<Layer>* outLayers,
+ std::vector<IComposerClient::Composition>* outTypes) {
+ auto found = mReturnData.find(display);
+ if (found == mReturnData.end()) {
+ outLayers->clear();
+ outTypes->clear();
+ return;
+ }
+
+ ReturnData& data = found->second;
+
+ *outLayers = std::move(data.changedLayers);
+ *outTypes = std::move(data.compositionTypes);
+}
+
+void AidlCommandReader::takeDisplayRequests(Display display, uint32_t* outDisplayRequestMask,
+ std::vector<Layer>* outLayers,
+ std::vector<uint32_t>* outLayerRequestMasks) {
+ auto found = mReturnData.find(display);
+ if (found == mReturnData.end()) {
+ *outDisplayRequestMask = 0;
+ outLayers->clear();
+ outLayerRequestMasks->clear();
+ return;
+ }
+
+ ReturnData& data = found->second;
+
+ *outDisplayRequestMask = data.displayRequests;
+ *outLayers = std::move(data.requestedLayers);
+ *outLayerRequestMasks = std::move(data.requestMasks);
+}
+
+void AidlCommandReader::takeReleaseFences(Display display, std::vector<Layer>* outLayers,
+ std::vector<int>* outReleaseFences) {
+ auto found = mReturnData.find(display);
+ if (found == mReturnData.end()) {
+ outLayers->clear();
+ outReleaseFences->clear();
+ return;
+ }
+
+ ReturnData& data = found->second;
+
+ *outLayers = std::move(data.releasedLayers);
+ *outReleaseFences = std::move(data.releaseFences);
+}
+
+void AidlCommandReader::takePresentFence(Display display, int* outPresentFence) {
+ auto found = mReturnData.find(display);
+ if (found == mReturnData.end()) {
+ *outPresentFence = -1;
+ return;
+ }
+
+ ReturnData& data = found->second;
+
+ *outPresentFence = data.presentFence;
+ data.presentFence = -1;
+}
+
+void AidlCommandReader::takePresentOrValidateStage(Display display, uint32_t* state) {
+ auto found = mReturnData.find(display);
+ if (found == mReturnData.end()) {
+ *state = static_cast<uint32_t>(-1);
+ return;
+ }
+ ReturnData& data = found->second;
+ *state = data.presentOrValidateState;
+}
+
+void AidlCommandReader::takeClientTargetProperty(
+ Display display, IComposerClient::ClientTargetProperty* outClientTargetProperty) {
+ auto found = mReturnData.find(display);
+
+ // If not found, return the default values.
+ if (found == mReturnData.end()) {
+ outClientTargetProperty->pixelFormat = PixelFormat::RGBA_8888;
+ outClientTargetProperty->dataspace = Dataspace::UNKNOWN;
+ return;
+ }
+
+ ReturnData& data = found->second;
+ *outClientTargetProperty = data.clientTargetProperty;
+}
+
+} // namespace impl
+} // namespace Hwc2
+} // namespace android