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
24 using namespace android;
25
WindowSurface()26 WindowSurface::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 uint32_t width, height;
47 if (mainDpyInfo.orientation != DISPLAY_ORIENTATION_0 &&
48 mainDpyInfo.orientation != DISPLAY_ORIENTATION_180) {
49 // rotated
50 width = mainDpyInfo.h;
51 height = mainDpyInfo.w;
52 } else {
53 width = mainDpyInfo.w;
54 height = mainDpyInfo.h;
55 }
56
57 sp<SurfaceControl> sc = surfaceComposerClient->createSurface(
58 String8("Benchmark"), width, height,
59 PIXEL_FORMAT_RGBX_8888, ISurfaceComposerClient::eOpaque);
60 if (sc == NULL || !sc->isValid()) {
61 fprintf(stderr, "Failed to create SurfaceControl\n");
62 return;
63 }
64
65 SurfaceComposerClient::openGlobalTransaction();
66 err = sc->setLayer(0x7FFFFFFF); // always on top
67 if (err != NO_ERROR) {
68 fprintf(stderr, "SurfaceComposer::setLayer error: %#x\n", err);
69 return;
70 }
71
72 err = sc->show();
73 if (err != NO_ERROR) {
74 fprintf(stderr, "SurfaceComposer::show error: %#x\n", err);
75 return;
76 }
77 SurfaceComposerClient::closeGlobalTransaction();
78
79 mSurfaceControl = sc;
80 }
81
getSurface() const82 EGLNativeWindowType WindowSurface::getSurface() const {
83 sp<ANativeWindow> anw = mSurfaceControl->getSurface();
84 return (EGLNativeWindowType) anw.get();
85 }
86
87