WindowSurface.cpp revision 6ef57d7b368ebbac5f2b27c36a9032fee1cda8b1
1/* 2 * Copyright 2014 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#include <WindowSurface.h> 18 19#include <gui/SurfaceComposerClient.h> 20#include <gui/ISurfaceComposer.h> 21#include <gui/Surface.h> 22#include <ui/DisplayInfo.h> 23 24using namespace android; 25 26WindowSurface::WindowSurface() { 27 status_t err; 28 29 sp<SurfaceComposerClient> surfaceComposerClient = new SurfaceComposerClient; 30 err = surfaceComposerClient->initCheck(); 31 if (err != NO_ERROR) { 32 fprintf(stderr, "SurfaceComposerClient::initCheck error: %#x\n", err); 33 return; 34 } 35 36 // Get main display parameters. 37 sp<IBinder> mainDpy = SurfaceComposerClient::getBuiltInDisplay( 38 ISurfaceComposer::eDisplayIdMain); 39 DisplayInfo mainDpyInfo; 40 err = SurfaceComposerClient::getDisplayInfo(mainDpy, &mainDpyInfo); 41 if (err != NO_ERROR) { 42 fprintf(stderr, "ERROR: unable to get display characteristics\n"); 43 return; 44 } 45 46 sp<SurfaceControl> sc = surfaceComposerClient->createSurface( 47 String8("Benchmark"), mainDpyInfo.w, mainDpyInfo.h, 48 PIXEL_FORMAT_RGBA_8888, ISurfaceComposerClient::eOpaque); 49 if (sc == NULL || !sc->isValid()) { 50 fprintf(stderr, "Failed to create SurfaceControl\n"); 51 return; 52 } 53 54 SurfaceComposerClient::openGlobalTransaction(); 55 err = sc->setLayer(0x7FFFFFFF); // always on top 56 if (err != NO_ERROR) { 57 fprintf(stderr, "SurfaceComposer::setLayer error: %#x\n", err); 58 return; 59 } 60 61 err = sc->show(); 62 if (err != NO_ERROR) { 63 fprintf(stderr, "SurfaceComposer::show error: %#x\n", err); 64 return; 65 } 66 SurfaceComposerClient::closeGlobalTransaction(); 67 68 mSurfaceControl = sc; 69} 70 71EGLNativeWindowType WindowSurface::getSurface() const { 72 sp<ANativeWindow> anw = mSurfaceControl->getSurface(); 73 return (EGLNativeWindowType) anw.get(); 74} 75 76