2c9b11f029
We replace the blank/unblank calls in surfaceFlinger with a more generic setPowerMode() routine. Some displays support different power modes (for example, with reduced color palettes). Depending on the use case we should be able to toggle these modes, so as to achieve incremental power savings. Initially, three power modes will be supported: - HWC_POWER_MODE_OFF - HWC_POWER_MODE_DOZE - HWC_POWER_MODE_NORMAL HWC_POWER_MODE_OFF will correspond to blanking the display, while HWC_POWER_MODE_NORMAL will correspond to unblanking. HWC_POWER_MODE_DOZE will put the display into a low power setting, if it is supported in hardware. If such a low power mode is not supported, it should be treated as a call to set the mode to HWC_POWER_MODE_NORMAL. As a consequence of adding the mPowerMode field, the mScreenAcquired is no longer required, and thus references to it are removed and replaced equivalent references to mPowerMode. We also add the glue code to connect the services invocation of setting a power mode and the HAL implementation in HWComposer. Bug: 13472578 Change-Id: I431595ecf16d2f2c94259272db3dd42f29636204 Signed-off-by: Prashant Malani <pmalani@google.com>
436 lines
16 KiB
C++
436 lines
16 KiB
C++
/*
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* Copyright (C) 2007 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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// tag as surfaceflinger
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#define LOG_TAG "SurfaceFlinger"
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#include <stdint.h>
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#include <sys/types.h>
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#include <binder/Parcel.h>
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#include <binder/IMemory.h>
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#include <binder/IPCThreadState.h>
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#include <binder/IServiceManager.h>
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#include <gui/BitTube.h>
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#include <gui/IDisplayEventConnection.h>
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#include <gui/ISurfaceComposer.h>
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#include <gui/IGraphicBufferProducer.h>
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#include <private/gui/LayerState.h>
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#include <ui/DisplayInfo.h>
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#include <utils/Log.h>
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// ---------------------------------------------------------------------------
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namespace android {
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class IDisplayEventConnection;
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class BpSurfaceComposer : public BpInterface<ISurfaceComposer>
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{
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public:
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BpSurfaceComposer(const sp<IBinder>& impl)
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: BpInterface<ISurfaceComposer>(impl)
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{
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}
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virtual sp<ISurfaceComposerClient> createConnection()
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{
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uint32_t n;
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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remote()->transact(BnSurfaceComposer::CREATE_CONNECTION, data, &reply);
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return interface_cast<ISurfaceComposerClient>(reply.readStrongBinder());
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}
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virtual sp<IGraphicBufferAlloc> createGraphicBufferAlloc()
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{
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uint32_t n;
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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remote()->transact(BnSurfaceComposer::CREATE_GRAPHIC_BUFFER_ALLOC, data, &reply);
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return interface_cast<IGraphicBufferAlloc>(reply.readStrongBinder());
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}
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virtual void setTransactionState(
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const Vector<ComposerState>& state,
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const Vector<DisplayState>& displays,
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uint32_t flags)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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{
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Vector<ComposerState>::const_iterator b(state.begin());
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Vector<ComposerState>::const_iterator e(state.end());
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data.writeInt32(state.size());
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for ( ; b != e ; ++b ) {
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b->write(data);
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}
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}
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{
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Vector<DisplayState>::const_iterator b(displays.begin());
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Vector<DisplayState>::const_iterator e(displays.end());
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data.writeInt32(displays.size());
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for ( ; b != e ; ++b ) {
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b->write(data);
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}
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}
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data.writeInt32(flags);
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remote()->transact(BnSurfaceComposer::SET_TRANSACTION_STATE, data, &reply);
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}
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virtual void bootFinished()
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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remote()->transact(BnSurfaceComposer::BOOT_FINISHED, data, &reply);
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}
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virtual status_t captureScreen(const sp<IBinder>& display,
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const sp<IGraphicBufferProducer>& producer,
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Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
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uint32_t minLayerZ, uint32_t maxLayerZ,
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bool useIdentityTransform)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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data.writeStrongBinder(display);
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data.writeStrongBinder(producer->asBinder());
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data.write(sourceCrop);
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data.writeInt32(reqWidth);
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data.writeInt32(reqHeight);
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data.writeInt32(minLayerZ);
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data.writeInt32(maxLayerZ);
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data.writeInt32(static_cast<int32_t>(useIdentityTransform));
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remote()->transact(BnSurfaceComposer::CAPTURE_SCREEN, data, &reply);
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return reply.readInt32();
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}
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virtual bool authenticateSurfaceTexture(
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const sp<IGraphicBufferProducer>& bufferProducer) const
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{
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Parcel data, reply;
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int err = NO_ERROR;
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err = data.writeInterfaceToken(
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ISurfaceComposer::getInterfaceDescriptor());
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if (err != NO_ERROR) {
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ALOGE("ISurfaceComposer::authenticateSurfaceTexture: error writing "
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"interface descriptor: %s (%d)", strerror(-err), -err);
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return false;
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}
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err = data.writeStrongBinder(bufferProducer->asBinder());
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if (err != NO_ERROR) {
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ALOGE("ISurfaceComposer::authenticateSurfaceTexture: error writing "
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"strong binder to parcel: %s (%d)", strerror(-err), -err);
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return false;
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}
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err = remote()->transact(BnSurfaceComposer::AUTHENTICATE_SURFACE, data,
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&reply);
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if (err != NO_ERROR) {
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ALOGE("ISurfaceComposer::authenticateSurfaceTexture: error "
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"performing transaction: %s (%d)", strerror(-err), -err);
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return false;
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}
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int32_t result = 0;
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err = reply.readInt32(&result);
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if (err != NO_ERROR) {
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ALOGE("ISurfaceComposer::authenticateSurfaceTexture: error "
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"retrieving result: %s (%d)", strerror(-err), -err);
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return false;
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}
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return result != 0;
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}
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virtual sp<IDisplayEventConnection> createDisplayEventConnection()
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{
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Parcel data, reply;
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sp<IDisplayEventConnection> result;
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int err = data.writeInterfaceToken(
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ISurfaceComposer::getInterfaceDescriptor());
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if (err != NO_ERROR) {
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return result;
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}
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err = remote()->transact(
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BnSurfaceComposer::CREATE_DISPLAY_EVENT_CONNECTION,
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data, &reply);
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if (err != NO_ERROR) {
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ALOGE("ISurfaceComposer::createDisplayEventConnection: error performing "
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"transaction: %s (%d)", strerror(-err), -err);
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return result;
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}
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result = interface_cast<IDisplayEventConnection>(reply.readStrongBinder());
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return result;
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}
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virtual sp<IBinder> createDisplay(const String8& displayName, bool secure)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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data.writeString8(displayName);
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data.writeInt32(secure ? 1 : 0);
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remote()->transact(BnSurfaceComposer::CREATE_DISPLAY, data, &reply);
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return reply.readStrongBinder();
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}
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virtual void destroyDisplay(const sp<IBinder>& display)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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data.writeStrongBinder(display);
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remote()->transact(BnSurfaceComposer::DESTROY_DISPLAY, data, &reply);
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}
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virtual sp<IBinder> getBuiltInDisplay(int32_t id)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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data.writeInt32(id);
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remote()->transact(BnSurfaceComposer::GET_BUILT_IN_DISPLAY, data, &reply);
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return reply.readStrongBinder();
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}
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virtual void setPowerMode(const sp<IBinder>& display, int mode)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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data.writeStrongBinder(display);
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data.writeInt32(mode);
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remote()->transact(BnSurfaceComposer::SET_POWER_MODE, data, &reply);
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}
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virtual status_t getDisplayConfigs(const sp<IBinder>& display,
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Vector<DisplayInfo>* configs)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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data.writeStrongBinder(display);
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remote()->transact(BnSurfaceComposer::GET_DISPLAY_CONFIGS, data, &reply);
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status_t result = reply.readInt32();
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if (result == NO_ERROR) {
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size_t numConfigs = static_cast<size_t>(reply.readInt32());
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configs->clear();
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configs->resize(numConfigs);
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for (size_t c = 0; c < numConfigs; ++c) {
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memcpy(&(configs->editItemAt(c)),
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reply.readInplace(sizeof(DisplayInfo)),
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sizeof(DisplayInfo));
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}
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}
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return result;
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}
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virtual int getActiveConfig(const sp<IBinder>& display)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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data.writeStrongBinder(display);
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remote()->transact(BnSurfaceComposer::GET_ACTIVE_CONFIG, data, &reply);
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return reply.readInt32();
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}
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virtual status_t setActiveConfig(const sp<IBinder>& display, int id)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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data.writeStrongBinder(display);
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data.writeInt32(id);
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remote()->transact(BnSurfaceComposer::SET_ACTIVE_CONFIG, data, &reply);
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return reply.readInt32();
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}
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virtual status_t clearAnimationFrameStats() {
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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remote()->transact(BnSurfaceComposer::CLEAR_ANIMATION_FRAME_STATS, data, &reply);
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return reply.readInt32();
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}
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virtual status_t getAnimationFrameStats(FrameStats* outStats) const {
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
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remote()->transact(BnSurfaceComposer::GET_ANIMATION_FRAME_STATS, data, &reply);
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reply.read(*outStats);
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return reply.readInt32();
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}
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};
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IMPLEMENT_META_INTERFACE(SurfaceComposer, "android.ui.ISurfaceComposer");
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// ----------------------------------------------------------------------
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status_t BnSurfaceComposer::onTransact(
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uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
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{
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switch(code) {
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case CREATE_CONNECTION: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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sp<IBinder> b = createConnection()->asBinder();
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reply->writeStrongBinder(b);
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return NO_ERROR;
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}
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case CREATE_GRAPHIC_BUFFER_ALLOC: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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sp<IBinder> b = createGraphicBufferAlloc()->asBinder();
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reply->writeStrongBinder(b);
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return NO_ERROR;
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}
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case SET_TRANSACTION_STATE: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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size_t count = data.readInt32();
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ComposerState s;
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Vector<ComposerState> state;
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state.setCapacity(count);
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for (size_t i=0 ; i<count ; i++) {
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s.read(data);
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state.add(s);
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}
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count = data.readInt32();
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DisplayState d;
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Vector<DisplayState> displays;
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displays.setCapacity(count);
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for (size_t i=0 ; i<count ; i++) {
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d.read(data);
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displays.add(d);
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}
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uint32_t flags = data.readInt32();
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setTransactionState(state, displays, flags);
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return NO_ERROR;
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}
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case BOOT_FINISHED: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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bootFinished();
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return NO_ERROR;
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}
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case CAPTURE_SCREEN: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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sp<IBinder> display = data.readStrongBinder();
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sp<IGraphicBufferProducer> producer =
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interface_cast<IGraphicBufferProducer>(data.readStrongBinder());
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Rect sourceCrop;
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data.read(sourceCrop);
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uint32_t reqWidth = data.readInt32();
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uint32_t reqHeight = data.readInt32();
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uint32_t minLayerZ = data.readInt32();
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uint32_t maxLayerZ = data.readInt32();
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bool useIdentityTransform = static_cast<bool>(data.readInt32());
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status_t res = captureScreen(display, producer,
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sourceCrop, reqWidth, reqHeight, minLayerZ, maxLayerZ,
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useIdentityTransform);
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reply->writeInt32(res);
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return NO_ERROR;
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}
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case AUTHENTICATE_SURFACE: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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sp<IGraphicBufferProducer> bufferProducer =
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interface_cast<IGraphicBufferProducer>(data.readStrongBinder());
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int32_t result = authenticateSurfaceTexture(bufferProducer) ? 1 : 0;
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reply->writeInt32(result);
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return NO_ERROR;
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}
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case CREATE_DISPLAY_EVENT_CONNECTION: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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sp<IDisplayEventConnection> connection(createDisplayEventConnection());
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reply->writeStrongBinder(connection->asBinder());
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return NO_ERROR;
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}
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case CREATE_DISPLAY: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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String8 displayName = data.readString8();
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bool secure = bool(data.readInt32());
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sp<IBinder> display(createDisplay(displayName, secure));
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reply->writeStrongBinder(display);
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return NO_ERROR;
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}
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case DESTROY_DISPLAY: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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sp<IBinder> display = data.readStrongBinder();
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destroyDisplay(display);
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return NO_ERROR;
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}
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case GET_BUILT_IN_DISPLAY: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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int32_t id = data.readInt32();
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sp<IBinder> display(getBuiltInDisplay(id));
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reply->writeStrongBinder(display);
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return NO_ERROR;
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}
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case GET_DISPLAY_CONFIGS: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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Vector<DisplayInfo> configs;
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sp<IBinder> display = data.readStrongBinder();
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status_t result = getDisplayConfigs(display, &configs);
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reply->writeInt32(result);
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if (result == NO_ERROR) {
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reply->writeInt32(static_cast<int32_t>(configs.size()));
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for (size_t c = 0; c < configs.size(); ++c) {
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memcpy(reply->writeInplace(sizeof(DisplayInfo)),
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&configs[c], sizeof(DisplayInfo));
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}
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}
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return NO_ERROR;
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}
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case GET_ACTIVE_CONFIG: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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sp<IBinder> display = data.readStrongBinder();
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int id = getActiveConfig(display);
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reply->writeInt32(id);
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return NO_ERROR;
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}
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case SET_ACTIVE_CONFIG: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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sp<IBinder> display = data.readStrongBinder();
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int id = data.readInt32();
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status_t result = setActiveConfig(display, id);
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reply->writeInt32(result);
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return NO_ERROR;
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}
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case CLEAR_ANIMATION_FRAME_STATS: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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status_t result = clearAnimationFrameStats();
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reply->writeInt32(result);
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return NO_ERROR;
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}
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case GET_ANIMATION_FRAME_STATS: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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FrameStats stats;
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status_t result = getAnimationFrameStats(&stats);
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reply->write(stats);
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reply->writeInt32(result);
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return NO_ERROR;
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}
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case SET_POWER_MODE: {
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CHECK_INTERFACE(ISurfaceComposer, data, reply);
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sp<IBinder> display = data.readStrongBinder();
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int32_t mode = data.readInt32();
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setPowerMode(display, mode);
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return NO_ERROR;
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}
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default: {
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return BBinder::onTransact(code, data, reply, flags);
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}
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}
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// should be unreachable
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return NO_ERROR;
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}
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// ----------------------------------------------------------------------------
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};
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