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    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
82EGLNativeWindowType WindowSurface::getSurface() const {
83    sp<ANativeWindow> anw = mSurfaceControl->getSurface();
84    return (EGLNativeWindowType) anw.get();
85}
86
87