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Commit b5cb7c15 authored by Huihong Luo's avatar Huihong Luo
Browse files

Migrate display related methods to AIDL 

This migrates display related methods from ISurfaceComposer.h to the AIDL interface.

Bug: 219574942
Test: manual
Merged-In: I11f011ce61bdd6dfbd8e0f1a1af8925820e3de58
Change-Id: I11f011ce61bdd6dfbd8e0f1a1af8925820e3de58
(cherry picked from commit 07e72366)
parent 3f6ac9e0

libs/gui/ISurfaceComposer.cpp

+0 −116
Original line number Diff line number Diff line
@@ -226,81 +226,6 @@ public: 
        return result;

    }



    sp<IBinder> createDisplay(const String8& displayName, bool secure) override {

        Parcel data, reply;

        data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());

        status_t status = data.writeString8(displayName);

        if (status) {

            return nullptr;

        }

        status = data.writeBool(secure);

        if (status) {

            return nullptr;

        }



        status = remote()->transact(BnSurfaceComposer::CREATE_DISPLAY, data, &reply);

        if (status) {

            return nullptr;

        }

        sp<IBinder> display;

        status = reply.readNullableStrongBinder(&display);

        if (status) {

            return nullptr;

        }

        return display;

    }



    void destroyDisplay(const sp<IBinder>& display) override {

        Parcel data, reply;

        data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());

        data.writeStrongBinder(display);

        remote()->transact(BnSurfaceComposer::DESTROY_DISPLAY, data, &reply);

    }



    std::vector<PhysicalDisplayId> getPhysicalDisplayIds() const override {

        Parcel data, reply;

        data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());

        if (remote()->transact(BnSurfaceComposer::GET_PHYSICAL_DISPLAY_IDS, data, &reply) ==

            NO_ERROR) {

            std::vector<uint64_t> rawIds;

            if (reply.readUint64Vector(&rawIds) == NO_ERROR) {

                std::vector<PhysicalDisplayId> displayIds;

                displayIds.reserve(rawIds.size());



                for (const uint64_t rawId : rawIds) {

                    if (const auto id = DisplayId::fromValue<PhysicalDisplayId>(rawId)) {

                        displayIds.push_back(*id);

                    }

                }

                return displayIds;

            }

        }



        return {};

    }



    status_t getPrimaryPhysicalDisplayId(PhysicalDisplayId* displayId) const override {

        Parcel data, reply;

        SAFE_PARCEL(data.writeInterfaceToken, ISurfaceComposer::getInterfaceDescriptor());

        SAFE_PARCEL(remote()->transact, BnSurfaceComposer::GET_PRIMARY_PHYSICAL_DISPLAY_ID, data,

                    &reply);

        uint64_t rawId;

        SAFE_PARCEL(reply.readUint64, &rawId);

        if (const auto id = DisplayId::fromValue<PhysicalDisplayId>(rawId)) {

            *displayId = *id;

            return NO_ERROR;

        }

        return NAME_NOT_FOUND;

    }



    sp<IBinder> getPhysicalDisplayToken(PhysicalDisplayId displayId) const override {

        Parcel data, reply;

        data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());

        data.writeUint64(displayId.value);

        remote()->transact(BnSurfaceComposer::GET_PHYSICAL_DISPLAY_TOKEN, data, &reply);

        return reply.readStrongBinder();

    }



    void setPowerMode(const sp<IBinder>& display, int mode) override {

        Parcel data, reply;

        data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
@@ -1467,29 +1392,6 @@ status_t BnSurfaceComposer::onTransact( 
            reply->writeStrongBinder(IInterface::asBinder(connection));

            return NO_ERROR;

        }

        case CREATE_DISPLAY: {

            CHECK_INTERFACE(ISurfaceComposer, data, reply);

            String8 displayName;

            SAFE_PARCEL(data.readString8, &displayName);

            bool secure = false;

            SAFE_PARCEL(data.readBool, &secure);

            sp<IBinder> display = createDisplay(displayName, secure);

            SAFE_PARCEL(reply->writeStrongBinder, display);

            return NO_ERROR;

        }

        case DESTROY_DISPLAY: {

            CHECK_INTERFACE(ISurfaceComposer, data, reply);

            sp<IBinder> display = data.readStrongBinder();

            destroyDisplay(display);

            return NO_ERROR;

        }

        case GET_PHYSICAL_DISPLAY_TOKEN: {

            CHECK_INTERFACE(ISurfaceComposer, data, reply);

            const auto id = DisplayId::fromValue<PhysicalDisplayId>(data.readUint64());

            if (!id) return BAD_VALUE;

            reply->writeStrongBinder(getPhysicalDisplayToken(*id));

            return NO_ERROR;

        }

        case GET_DISPLAY_STATE: {

            CHECK_INTERFACE(ISurfaceComposer, data, reply);

            ui::DisplayState state;
@@ -1826,24 +1728,6 @@ status_t BnSurfaceComposer::onTransact( 
            }

            return error;

        }

        case GET_PHYSICAL_DISPLAY_IDS: {

            CHECK_INTERFACE(ISurfaceComposer, data, reply);

            std::vector<PhysicalDisplayId> ids = getPhysicalDisplayIds();

            std::vector<uint64_t> rawIds(ids.size());

            std::transform(ids.begin(), ids.end(), rawIds.begin(),

                           [](PhysicalDisplayId id) { return id.value; });

            return reply->writeUint64Vector(rawIds);

        }

        case GET_PRIMARY_PHYSICAL_DISPLAY_ID: {

            CHECK_INTERFACE(ISurfaceComposer, data, reply);

            PhysicalDisplayId id;

            status_t result = getPrimaryPhysicalDisplayId(&id);

            if (result != NO_ERROR) {

                ALOGE("getPrimaryPhysicalDisplayId: Failed to get id");

                return result;

            }

            return reply->writeUint64(id.value);

        }

        case ADD_REGION_SAMPLING_LISTENER: {

            CHECK_INTERFACE(ISurfaceComposer, data, reply);

            Rect samplingArea;

libs/gui/Surface.cpp

+3 −2
Original line number Diff line number Diff line
@@ -45,6 +45,7 @@ 
#include <gui/ISurfaceComposer.h>

#include <gui/LayerState.h>

#include <private/gui/ComposerService.h>

#include <private/gui/ComposerServiceAIDL.h>



namespace android {
@@ -343,7 +344,7 @@ status_t Surface::getFrameTimestamps(uint64_t frameNumber, 
status_t Surface::getWideColorSupport(bool* supported) {

    ATRACE_CALL();



    const sp<IBinder> display = composerService()->getInternalDisplayToken();

    const sp<IBinder> display = ComposerServiceAIDL::getInstance().getInternalDisplayToken();

    if (display == nullptr) {

        return NAME_NOT_FOUND;

    }
@@ -356,7 +357,7 @@ status_t Surface::getWideColorSupport(bool* supported) { 
status_t Surface::getHdrSupport(bool* supported) {

    ATRACE_CALL();



    const sp<IBinder> display = composerService()->getInternalDisplayToken();

    const sp<IBinder> display = ComposerServiceAIDL::getInstance().getInternalDisplayToken();

    if (display == nullptr) {

        return NAME_NOT_FOUND;

    }

libs/gui/SurfaceComposerClient.cpp

+35 −8
Original line number Diff line number Diff line
@@ -1022,32 +1022,59 @@ status_t SurfaceComposerClient::Transaction::apply(bool synchronous, bool oneWay 
// ---------------------------------------------------------------------------



sp<IBinder> SurfaceComposerClient::createDisplay(const String8& displayName, bool secure) {

    return ComposerService::getComposerService()->createDisplay(displayName,

            secure);

    sp<IBinder> display = nullptr;

    binder::Status status =

            ComposerServiceAIDL::getComposerService()->createDisplay(std::string(

                                                                             displayName.string()),

                                                                     secure, &display);

    return status.isOk() ? display : nullptr;

}



void SurfaceComposerClient::destroyDisplay(const sp<IBinder>& display) {

    return ComposerService::getComposerService()->destroyDisplay(display);

    ComposerServiceAIDL::getComposerService()->destroyDisplay(display);

}



std::vector<PhysicalDisplayId> SurfaceComposerClient::getPhysicalDisplayIds() {

    return ComposerService::getComposerService()->getPhysicalDisplayIds();

    std::vector<int64_t> displayIds;

    std::vector<PhysicalDisplayId> physicalDisplayIds;

    binder::Status status =

            ComposerServiceAIDL::getComposerService()->getPhysicalDisplayIds(&displayIds);

    if (status.isOk()) {

        physicalDisplayIds.reserve(displayIds.size());

        for (auto item : displayIds) {

            auto id = DisplayId::fromValue<PhysicalDisplayId>(static_cast<uint64_t>(item));

            physicalDisplayIds.push_back(*id);

        }

    }

    return physicalDisplayIds;

}



status_t SurfaceComposerClient::getPrimaryPhysicalDisplayId(PhysicalDisplayId* id) {

    return ComposerService::getComposerService()->getPrimaryPhysicalDisplayId(id);

    int64_t displayId;

    binder::Status status =

            ComposerServiceAIDL::getComposerService()->getPrimaryPhysicalDisplayId(&displayId);

    if (status.isOk()) {

        *id = *DisplayId::fromValue<PhysicalDisplayId>(static_cast<uint64_t>(displayId));

    }

    return status.transactionError();

}



std::optional<PhysicalDisplayId> SurfaceComposerClient::getInternalDisplayId() {

    return ComposerService::getComposerService()->getInternalDisplayId();

    ComposerServiceAIDL& instance = ComposerServiceAIDL::getInstance();

    return instance.getInternalDisplayId();

}



sp<IBinder> SurfaceComposerClient::getPhysicalDisplayToken(PhysicalDisplayId displayId) {

    return ComposerService::getComposerService()->getPhysicalDisplayToken(displayId);

    sp<IBinder> display = nullptr;

    binder::Status status =

            ComposerServiceAIDL::getComposerService()->getPhysicalDisplayToken(displayId.value,

                                                                               &display);

    return status.isOk() ? display : nullptr;

}



sp<IBinder> SurfaceComposerClient::getInternalDisplayToken() {

    return ComposerService::getComposerService()->getInternalDisplayToken();

    ComposerServiceAIDL& instance = ComposerServiceAIDL::getInstance();

    return instance.getInternalDisplayToken();

}



void SurfaceComposerClient::Transaction::setAnimationTransaction() {

libs/gui/aidl/android/gui/ISurfaceComposer.aidl

+22 −0
Original line number Diff line number Diff line
@@ -22,6 +22,28 @@ import android.gui.IScreenCaptureListener; 


/** @hide */

interface ISurfaceComposer {



    /* create a virtual display

     * requires ACCESS_SURFACE_FLINGER permission.

     */

    @nullable IBinder createDisplay(@utf8InCpp String displayName, boolean secure);



    /* destroy a virtual display

     * requires ACCESS_SURFACE_FLINGER permission.

     */

    void destroyDisplay(IBinder display);



    /* get stable IDs for connected physical displays.

     */

    long[] getPhysicalDisplayIds();



    long getPrimaryPhysicalDisplayId();



    /* get token for a physical display given its stable ID obtained via getPhysicalDisplayIds or a

     * DisplayEventReceiver hotplug event.

     */

    @nullable IBinder getPhysicalDisplayToken(long displayId);



    /**

     * Capture the specified screen. This requires READ_FRAME_BUFFER

     * permission.  This function will fail if there is a secure window on

libs/gui/include/gui/ISurfaceComposer.h

+5 −39
Original line number Diff line number Diff line
@@ -138,40 +138,6 @@ public: 
            VsyncSource vsyncSource = eVsyncSourceApp,

            EventRegistrationFlags eventRegistration = {}) = 0;



    /* create a virtual display

     * requires ACCESS_SURFACE_FLINGER permission.

     */

    virtual sp<IBinder> createDisplay(const String8& displayName,

            bool secure) = 0;



    /* destroy a virtual display

     * requires ACCESS_SURFACE_FLINGER permission.

     */

    virtual void destroyDisplay(const sp<IBinder>& display) = 0;



    /* get stable IDs for connected physical displays.

     */

    virtual std::vector<PhysicalDisplayId> getPhysicalDisplayIds() const = 0;



    virtual status_t getPrimaryPhysicalDisplayId(PhysicalDisplayId*) const = 0;



    // TODO(b/74619554): Remove this stopgap once the framework is display-agnostic.

    std::optional<PhysicalDisplayId> getInternalDisplayId() const {

        const auto displayIds = getPhysicalDisplayIds();

        return displayIds.empty() ? std::nullopt : std::make_optional(displayIds.front());

    }



    /* get token for a physical display given its stable ID obtained via getPhysicalDisplayIds or a

     * DisplayEventReceiver hotplug event.

     */

    virtual sp<IBinder> getPhysicalDisplayToken(PhysicalDisplayId displayId) const = 0;



    // TODO(b/74619554): Remove this stopgap once the framework is display-agnostic.

    sp<IBinder> getInternalDisplayToken() const {

        const auto displayId = getInternalDisplayId();

        return displayId ? getPhysicalDisplayToken(*displayId) : nullptr;

    }



    /* open/close transactions. requires ACCESS_SURFACE_FLINGER permission */

    virtual status_t setTransactionState(

            const FrameTimelineInfo& frameTimelineInfo, const Vector<ComposerState>& state,
@@ -597,9 +563,9 @@ public: 
        CREATE_CONNECTION,

        GET_STATIC_DISPLAY_INFO,

        CREATE_DISPLAY_EVENT_CONNECTION,

        CREATE_DISPLAY,

        DESTROY_DISPLAY,

        GET_PHYSICAL_DISPLAY_TOKEN,

        CREATE_DISPLAY,             // Deprecated. Autogenerated by .aidl now.

        DESTROY_DISPLAY,            // Deprecated. Autogenerated by .aidl now.

        GET_PHYSICAL_DISPLAY_TOKEN, // Deprecated. Autogenerated by .aidl now.

        SET_TRANSACTION_STATE,

        AUTHENTICATE_SURFACE,

        GET_SUPPORTED_FRAME_TIMESTAMPS,
@@ -627,7 +593,7 @@ public: 
        GET_PROTECTED_CONTENT_SUPPORT,

        IS_WIDE_COLOR_DISPLAY,

        GET_DISPLAY_NATIVE_PRIMARIES,

        GET_PHYSICAL_DISPLAY_IDS,

        GET_PHYSICAL_DISPLAY_IDS, // Deprecated. Autogenerated by .aidl now.

        ADD_REGION_SAMPLING_LISTENER,

        REMOVE_REGION_SAMPLING_LISTENER,

        SET_DESIRED_DISPLAY_MODE_SPECS,
@@ -659,7 +625,7 @@ public: 
        REMOVE_TUNNEL_MODE_ENABLED_LISTENER,

        ADD_WINDOW_INFOS_LISTENER,

        REMOVE_WINDOW_INFOS_LISTENER,

        GET_PRIMARY_PHYSICAL_DISPLAY_ID,

        GET_PRIMARY_PHYSICAL_DISPLAY_ID, // Deprecated. Autogenerated by .aidl now.

        GET_DISPLAY_DECORATION_SUPPORT,

        GET_BOOT_DISPLAY_MODE_SUPPORT,

        SET_BOOT_DISPLAY_MODE,