libs/gui/ISurfaceComposerClient.cpp

   1 /*
   2  * Copyright (C) 2007 The Android Open Source Project
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 // tag as surfaceflinger
  18 #define LOG_TAG "SurfaceFlinger"
  19
  20 #include <gui/ISurfaceComposerClient.h>
  21
  22 #include <gui/IGraphicBufferProducer.h>
  23
  24 #include <binder/SafeInterface.h>
  25
  26 #include <ui/FrameStats.h>
  27
  28 namespace android {
  29
  30 namespace { // Anonymous
  31
  32 enum class Tag : uint32_t {
  33     CREATE_SURFACE = IBinder::FIRST_CALL_TRANSACTION,
  34     DESTROY_SURFACE,
  35     CLEAR_LAYER_FRAME_STATS,
  36     GET_LAYER_FRAME_STATS,
  37     LAST = GET_LAYER_FRAME_STATS,
  38 };
  39
  40 } // Anonymous namespace
  41
  42 class BpSurfaceComposerClient : public SafeBpInterface<ISurfaceComposerClient> {
  43 public:
  44     explicit BpSurfaceComposerClient(const sp<IBinder>& impl)
  45           : SafeBpInterface<ISurfaceComposerClient>(impl, "BpSurfaceComposerClient") {}
  46
  47     ~BpSurfaceComposerClient() override;
  48
  49     status_t createSurface(const String8& name, uint32_t width, uint32_t height, PixelFormat format,
  50                            uint32_t flags, const sp<IBinder>& parent, uint32_t windowType,
  51                            uint32_t ownerUid, sp<IBinder>* handle,
  52                            sp<IGraphicBufferProducer>* gbp) override {
  53         return callRemote<decltype(&ISurfaceComposerClient::createSurface)>(Tag::CREATE_SURFACE,
  54                                                                             name, width, height,
  55                                                                             format, flags, parent,
  56                                                                             windowType, ownerUid,
  57                                                                             handle, gbp);
  58     }
  59
  60     status_t destroySurface(const sp<IBinder>& handle) override {
  61         return callRemote<decltype(&ISurfaceComposerClient::destroySurface)>(Tag::DESTROY_SURFACE,
  62                                                                              handle);
  63     }
  64
  65     status_t clearLayerFrameStats(const sp<IBinder>& handle) const override {
  66         return callRemote<decltype(
  67                 &ISurfaceComposerClient::clearLayerFrameStats)>(Tag::CLEAR_LAYER_FRAME_STATS,
  68                                                                 handle);
  69     }
  70
  71     status_t getLayerFrameStats(const sp<IBinder>& handle, FrameStats* outStats) const override {
  72         return callRemote<decltype(
  73                 &ISurfaceComposerClient::getLayerFrameStats)>(Tag::GET_LAYER_FRAME_STATS, handle,
  74                                                               outStats);
  75     }
  76 };
  77
  78 // Out-of-line virtual method definition to trigger vtable emission in this
  79 // translation unit (see clang warning -Wweak-vtables)
  80 BpSurfaceComposerClient::~BpSurfaceComposerClient() {}
  81
  82 IMPLEMENT_META_INTERFACE(SurfaceComposerClient, "android.ui.ISurfaceComposerClient");
  83
  84 // ----------------------------------------------------------------------
  85
  86 status_t BnSurfaceComposerClient::onTransact(uint32_t code, const Parcel& data, Parcel* reply,
  87                                              uint32_t flags) {
  88     if (code < IBinder::FIRST_CALL_TRANSACTION || code > static_cast<uint32_t>(Tag::LAST)) {
  89         return BBinder::onTransact(code, data, reply, flags);
  90     }
  91     auto tag = static_cast<Tag>(code);
  92     switch (tag) {
  93         case Tag::CREATE_SURFACE:
  94             return callLocal(data, reply, &ISurfaceComposerClient::createSurface);
  95         case Tag::DESTROY_SURFACE:
  96             return callLocal(data, reply, &ISurfaceComposerClient::destroySurface);
  97         case Tag::CLEAR_LAYER_FRAME_STATS:
  98             return callLocal(data, reply, &ISurfaceComposerClient::clearLayerFrameStats);
  99         case Tag::GET_LAYER_FRAME_STATS:
 100             return callLocal(data, reply, &ISurfaceComposerClient::getLayerFrameStats);
 101     }
 102 }
 103
 104 } // namespace android