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::getInternalDisplayToken();
38 if (mainDpy == nullptr) {
39 fprintf(stderr, "ERROR: no internal display\n");
40 return;
41 }
42
43 DisplayInfo mainDpyInfo;
44 err = SurfaceComposerClient::getDisplayInfo(mainDpy, &mainDpyInfo);
45 if (err != NO_ERROR) {
46 fprintf(stderr, "ERROR: unable to get display characteristics\n");
47 return;
48 }
49
50 uint32_t width, height;
51 if (mainDpyInfo.orientation != DISPLAY_ORIENTATION_0 &&
52 mainDpyInfo.orientation != DISPLAY_ORIENTATION_180) {
53 // rotated
54 width = mainDpyInfo.h;
55 height = mainDpyInfo.w;
56 } else {
57 width = mainDpyInfo.w;
58 height = mainDpyInfo.h;
59 }
60
61 sp<SurfaceControl> sc = surfaceComposerClient->createSurface(
62 String8("Benchmark"), width, height,
63 PIXEL_FORMAT_RGBX_8888, ISurfaceComposerClient::eOpaque);
64 if (sc == NULL || !sc->isValid()) {
65 fprintf(stderr, "Failed to create SurfaceControl\n");
66 return;
67 }
68
69 SurfaceComposerClient::Transaction{}
70 .setLayer(sc, 0x7FFFFFFF) // always on top
71 .show(sc)
72 .apply();
73
74 mSurfaceControl = sc;
75 }
76
getSurface() const77 EGLNativeWindowType WindowSurface::getSurface() const {
78 sp<ANativeWindow> anw = mSurfaceControl->getSurface();
79 return (EGLNativeWindowType) anw.get();
80 }
81
82