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Commit 541d9420 authored by Mathias Agopian's avatar Mathias Agopian
Browse files

new screencap command 

this captures the framebuffer via surfaceflinger APIs and outputs
it to stdout. this is intended to be used by adbd.

Change-Id: I057e331d28dd92bd45a2c7037ab93e220bbd65f3
parent eb6e22f2

cmds/screencap/Android.mk

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Original line number Diff line number Diff line 
LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)



LOCAL_SRC_FILES:= \

	screencap.cpp



LOCAL_SHARED_LIBRARIES := \

	libcutils \

	libutils \

	libbinder \

    libui \

    libsurfaceflinger_client



LOCAL_MODULE:= screencap



LOCAL_MODULE_TAGS := optional



include $(BUILD_EXECUTABLE)

cmds/screencap/screencap.cpp

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Original line number Diff line number Diff line 
/*

 * 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 <unistd.h>

#include <fcntl.h>



#include <utils/Log.h>



#include <binder/IPCThreadState.h>

#include <binder/ProcessState.h>

#include <binder/IServiceManager.h>



#include <binder/IMemory.h>

#include <surfaceflinger/ISurfaceComposer.h>



using namespace android;



int main(int argc, char** argv)

{

    const String16 name("SurfaceFlinger");

    sp<ISurfaceComposer> composer;

    if (getService(name, &composer) != NO_ERROR)

        return 0;



    sp<IMemoryHeap> heap;

    uint32_t w, h;

    PixelFormat f;

    status_t err = composer->captureScreen(0, &heap, &w, &h, &f);

    if (err != NO_ERROR)

        return 0;



    uint8_t* base = (uint8_t*)heap->getBase();

    int fd = dup(STDOUT_FILENO);

    write(fd, &w, 4);

    write(fd, &h, 4);

    write(fd, &f, 4);

    write(fd, base, w*h*4);

    close(fd);

    return 0;

}