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/*
* Copyright (C) 2012 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 <stdint.h>
#include <sys/types.h>
#include <binder/IPCThreadState.h>
#include <private/android_filesystem_config.h>
#include <gui/AidlStatusUtil.h>
#include "Client.h"
#include "Layer.h"
#include "SurfaceFlinger.h"
namespace android {
using gui::aidl_utils::binderStatusFromStatusT;
// ---------------------------------------------------------------------------
const String16 sAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER");
// ---------------------------------------------------------------------------
Client::Client(const sp<SurfaceFlinger>& flinger)
: mFlinger(flinger)
{
}
status_t Client::initCheck() const {
return NO_ERROR;
}
void Client::attachLayer(const sp<IBinder>& handle, const sp<Layer>& layer)
{
Mutex::Autolock _l(mLock);
mLayers.add(handle, layer);
}
void Client::detachLayer(const Layer* layer)
{
Mutex::Autolock _l(mLock);
// we do a linear search here, because this doesn't happen often
const size_t count = mLayers.size();
for (size_t i=0 ; i<count ; i++) {
if (mLayers.valueAt(i) == layer) {
mLayers.removeItemsAt(i, 1);
break;
}
}
}
sp<Layer> Client::getLayerUser(const sp<IBinder>& handle) const
{
Mutex::Autolock _l(mLock);
sp<Layer> lbc;
wp<Layer> layer(mLayers.valueFor(handle));
if (layer != 0) {
lbc = layer.promote();
ALOGE_IF(lbc==0, "getLayerUser(name=%p) is dead", handle.get());
}
return lbc;
}
binder::Status Client::createSurface(const std::string& name, int32_t flags,
const sp<IBinder>& parent, const gui::LayerMetadata& metadata,
gui::CreateSurfaceResult* outResult) {
// We rely on createLayer to check permissions.
sp<IBinder> handle;
int32_t layerId;
uint32_t transformHint;
LayerCreationArgs args(mFlinger.get(), sp<Client>::fromExisting(this), name.c_str(),
static_cast<uint32_t>(flags), std::move(metadata));
const status_t status =
mFlinger->createLayer(args, &handle, parent, &layerId, nullptr, &transformHint);
if (status == NO_ERROR) {
outResult->handle = handle;
outResult->layerId = layerId;
outResult->transformHint = static_cast<int32_t>(transformHint);
}
return binderStatusFromStatusT(status);
}
binder::Status Client::clearLayerFrameStats(const sp<IBinder>& handle) {
status_t status;
sp<Layer> layer = getLayerUser(handle);
if (layer == nullptr) {
status = NAME_NOT_FOUND;
} else {
layer->clearFrameStats();
status = NO_ERROR;
}
return binderStatusFromStatusT(status);
}
binder::Status Client::getLayerFrameStats(const sp<IBinder>& handle, gui::FrameStats* outStats) {
status_t status;
sp<Layer> layer = getLayerUser(handle);
if (layer == nullptr) {
status = NAME_NOT_FOUND;
} else {
FrameStats stats;
layer->getFrameStats(&stats);
outStats->refreshPeriodNano = stats.refreshPeriodNano;
outStats->desiredPresentTimesNano.reserve(stats.desiredPresentTimesNano.size());
for (const auto& t : stats.desiredPresentTimesNano) {
outStats->desiredPresentTimesNano.push_back(t);
}
outStats->actualPresentTimesNano.reserve(stats.actualPresentTimesNano.size());
for (const auto& t : stats.actualPresentTimesNano) {
outStats->actualPresentTimesNano.push_back(t);
}
outStats->frameReadyTimesNano.reserve(stats.frameReadyTimesNano.size());
for (const auto& t : stats.frameReadyTimesNano) {
outStats->frameReadyTimesNano.push_back(t);
}
status = NO_ERROR;
}
return binderStatusFromStatusT(status);
}
binder::Status Client::mirrorSurface(const sp<IBinder>& mirrorFromHandle,
gui::MirrorSurfaceResult* outResult) {
sp<IBinder> handle;
int32_t layerId;
LayerCreationArgs args(mFlinger.get(), sp<Client>::fromExisting(this), "MirrorRoot",
0 /* flags */, gui::LayerMetadata());
status_t status = mFlinger->mirrorLayer(args, mirrorFromHandle, &handle, &layerId);
if (status == NO_ERROR) {
outResult->handle = handle;
outResult->layerId = layerId;
}
return binderStatusFromStatusT(status);
}
binder::Status Client::mirrorDisplay(int64_t displayId, gui::MirrorSurfaceResult* outResult) {
sp<IBinder> handle;
int32_t layerId;
LayerCreationArgs args(mFlinger.get(), sp<Client>::fromExisting(this),
"MirrorRoot-" + std::to_string(displayId), 0 /* flags */,
gui::LayerMetadata());
std::optional<DisplayId> id = DisplayId::fromValue(static_cast<uint64_t>(displayId));
status_t status = mFlinger->mirrorDisplay(*id, args, &handle, &layerId);
if (status == NO_ERROR) {
outResult->handle = handle;
outResult->layerId = layerId;
}
return binderStatusFromStatusT(status);
}
// ---------------------------------------------------------------------------
}; // namespace android
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