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/*
* Copyright 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <WindowSurface.h>
#include <utility>
#include <gui/ISurfaceComposer.h>
#include <gui/Surface.h>
#include <gui/SurfaceComposerClient.h>
#include <ui/DisplayMode.h>
#include <ui/DisplayState.h>
using namespace android;
WindowSurface::WindowSurface() {
status_t err;
sp<SurfaceComposerClient> surfaceComposerClient = new SurfaceComposerClient;
err = surfaceComposerClient->initCheck();
if (err != NO_ERROR) {
fprintf(stderr, "SurfaceComposerClient::initCheck error: %#x\n", err);
return;
}
const auto ids = SurfaceComposerClient::getPhysicalDisplayIds();
if (ids.empty()) {
fprintf(stderr, "Failed to get ID for any displays.\n");
return;
}
// display 0 is picked for now, can extend to support all displays if needed
const auto displayToken = SurfaceComposerClient::getPhysicalDisplayToken(ids.front());
if (displayToken == nullptr) {
fprintf(stderr, "ERROR: no display\n");
return;
}
ui::DisplayMode displayMode;
err = SurfaceComposerClient::getActiveDisplayMode(displayToken, &displayMode);
if (err != NO_ERROR) {
fprintf(stderr, "ERROR: unable to get active display mode\n");
return;
}
ui::DisplayState displayState;
err = SurfaceComposerClient::getDisplayState(displayToken, &displayState);
if (err != NO_ERROR) {
fprintf(stderr, "ERROR: unable to get display state\n");
return;
}
const ui::Size& resolution = displayMode.resolution;
auto width = resolution.getWidth();
auto height = resolution.getHeight();
if (displayState.orientation == ui::ROTATION_90 ||
displayState.orientation == ui::ROTATION_270) {
std::swap(width, height);
}
sp<SurfaceControl> sc = surfaceComposerClient->createSurface(
String8("Benchmark"), width, height,
PIXEL_FORMAT_RGBX_8888, ISurfaceComposerClient::eOpaque);
if (sc == nullptr || !sc->isValid()) {
fprintf(stderr, "Failed to create SurfaceControl\n");
return;
}
SurfaceComposerClient::Transaction{}
.setLayer(sc, 0x7FFFFFFF)
.show(sc)
.apply();
mSurfaceControl = sc;
}
EGLNativeWindowType WindowSurface::getSurface() const {
sp<ANativeWindow> anw = mSurfaceControl->getSurface();
return (EGLNativeWindowType) anw.get();
}
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