1 // Copyright (C) 2022 The Android Open Source Project 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #include <memory> 16 17 #include "Display.h" 18 #include "DisplaySurface.h" 19 #include "host-common/GfxstreamFatalError.h" 20 #include "host-common/logging.h" 21 22 namespace gfxstream { 23 24 using android::base::AutoLock; 25 using emugl::ABORT_REASON_OTHER; 26 using emugl::FatalError; 27 ~DisplaySurfaceUser()28DisplaySurfaceUser::~DisplaySurfaceUser() { 29 if (mBoundSurface != nullptr) { 30 GFXSTREAM_ABORT(FatalError(ABORT_REASON_OTHER)) 31 << "Failed to unbind a DisplaySurface before DisplaySurfaceUser destruction."; 32 } 33 } 34 bindToSurface(DisplaySurface * surface)35void DisplaySurfaceUser::bindToSurface(DisplaySurface* surface) { 36 AutoLock lock(mMutex); 37 if (mBoundSurface != nullptr) { 38 GFXSTREAM_ABORT(FatalError(ABORT_REASON_OTHER)) 39 << "Attempting to bind a DisplaySurface while another is already bound."; 40 } 41 42 this->bindToSurfaceImpl(surface); 43 surface->registerUser(this); 44 mBoundSurface = surface; 45 } 46 unbindFromSurface()47void DisplaySurfaceUser::unbindFromSurface() { 48 AutoLock lock(mMutex); 49 this->unbindFromSurfaceImpl(); 50 if (mBoundSurface != nullptr) { 51 mBoundSurface->unregisterUser(this); 52 mBoundSurface = nullptr; 53 } 54 } 55 56 } // namespace gfxstream 57