/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdint.h>
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#include <sys/types.h>
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#include <binder/IPCThreadState.h>
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#include <private/android_filesystem_config.h>
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#include "Client.h"
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#include "Layer.h"
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#include "SurfaceFlinger.h"
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namespace android {
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// ---------------------------------------------------------------------------
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const String16 sAccessSurfaceFlinger("android.permission.ACCESS_SURFACE_FLINGER");
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// ---------------------------------------------------------------------------
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Client::Client(const sp<SurfaceFlinger>& flinger)
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: mFlinger(flinger)
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{
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}
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status_t Client::initCheck() const {
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return NO_ERROR;
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}
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void Client::attachLayer(const sp<IBinder>& handle, const sp<Layer>& layer)
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{
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Mutex::Autolock _l(mLock);
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mLayers.add(handle, layer);
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}
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void Client::detachLayer(const Layer* layer)
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{
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Mutex::Autolock _l(mLock);
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// we do a linear search here, because this doesn't happen often
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const size_t count = mLayers.size();
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for (size_t i=0 ; i<count ; i++) {
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if (mLayers.valueAt(i) == layer) {
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mLayers.removeItemsAt(i, 1);
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break;
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}
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}
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}
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sp<Layer> Client::getLayerUser(const sp<IBinder>& handle) const
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{
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Mutex::Autolock _l(mLock);
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sp<Layer> lbc;
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wp<Layer> layer(mLayers.valueFor(handle));
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if (layer != 0) {
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lbc = layer.promote();
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ALOGE_IF(lbc==0, "getLayerUser(name=%p) is dead", handle.get());
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}
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return lbc;
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}
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status_t Client::createSurface(const String8& name, uint32_t w, uint32_t h, PixelFormat format,
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uint32_t flags, const sp<IBinder>& parentHandle,
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LayerMetadata metadata, sp<IBinder>* handle,
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sp<IGraphicBufferProducer>* gbp) {
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// We rely on createLayer to check permissions.
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return mFlinger->createLayer(name, this, w, h, format, flags, std::move(metadata), handle, gbp,
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parentHandle);
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}
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status_t Client::createWithSurfaceParent(const String8& name, uint32_t w, uint32_t h,
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PixelFormat format, uint32_t flags,
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const sp<IGraphicBufferProducer>& parent,
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LayerMetadata metadata, sp<IBinder>* handle,
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sp<IGraphicBufferProducer>* gbp) {
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if (mFlinger->authenticateSurfaceTexture(parent) == false) {
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ALOGE("failed to authenticate surface texture");
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return BAD_VALUE;
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}
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const auto& layer = (static_cast<MonitoredProducer*>(parent.get()))->getLayer();
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if (layer == nullptr) {
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ALOGE("failed to find parent layer");
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return BAD_VALUE;
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}
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return mFlinger->createLayer(name, this, w, h, format, flags, std::move(metadata), handle, gbp,
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nullptr, layer);
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}
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status_t Client::clearLayerFrameStats(const sp<IBinder>& handle) const {
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sp<Layer> layer = getLayerUser(handle);
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if (layer == nullptr) {
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return NAME_NOT_FOUND;
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}
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layer->clearFrameStats();
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return NO_ERROR;
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}
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status_t Client::getLayerFrameStats(const sp<IBinder>& handle, FrameStats* outStats) const {
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sp<Layer> layer = getLayerUser(handle);
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if (layer == nullptr) {
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return NAME_NOT_FOUND;
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}
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layer->getFrameStats(outStats);
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return NO_ERROR;
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}
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// ---------------------------------------------------------------------------
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}; // namespace android
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