replicant-frameworks_native/services/surfaceflinger/tests/screencap/screencap.cpp
Jeff Brown 9d4e3d2f42 Banish DisplayID from the SurfaceFlinger API.
Use only display tokens in the API to refer to new displays.

Don't require the caller to specify the display when creating
a surface (since in general a surface could be shown on
any display).

This is intended to be a minimum change just to update the API.
Note that SurfaceFlinger still uses DisplayID in a few places
internally that might cause some features not to work properly
when there are multiple displays (LayerScreenshot, for example).

Change-Id: I3d91eec2da406eefd97bcd53655d403ad865a7e6
2012-08-27 14:40:17 -07:00

65 lines
1.8 KiB
C++

/*
* Copyright (C) 2010 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 <utils/Log.h>
#include <binder/IPCThreadState.h>
#include <binder/ProcessState.h>
#include <binder/IServiceManager.h>
#include <binder/IMemory.h>
#include <gui/ISurfaceComposer.h>
#include <SkImageEncoder.h>
#include <SkBitmap.h>
using namespace android;
int main(int argc, char** argv)
{
if (argc != 2) {
printf("usage: %s path\n", argv[0]);
exit(0);
}
const String16 name("SurfaceFlinger");
sp<ISurfaceComposer> composer;
getService(name, &composer);
sp<IMemoryHeap> heap;
uint32_t w, h;
PixelFormat f;
sp<IBinder> display(composer->getBuiltInDisplay(ISurfaceComposer::eDisplayIdMain));
status_t err = composer->captureScreen(display, &heap, &w, &h, &f, 0, 0);
if (err != NO_ERROR) {
fprintf(stderr, "screen capture failed: %s\n", strerror(-err));
exit(0);
}
printf("screen capture success: w=%u, h=%u, pixels=%p\n",
w, h, heap->getBase());
printf("saving file as PNG in %s ...\n", argv[1]);
SkBitmap b;
b.setConfig(SkBitmap::kARGB_8888_Config, w, h);
b.setPixels(heap->getBase());
SkImageEncoder::EncodeFile(argv[1], b,
SkImageEncoder::kPNG_Type, SkImageEncoder::kDefaultQuality);
return 0;
}