simple test app for screen capture API

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)

LOCAL_SRC_FILES:= \

	screencap.cpp

LOCAL_SHARED_LIBRARIES := \

	libcutils \

	libutils \

	libbinder \

	libskia \

    libui \

    libsurfaceflinger_client

LOCAL_MODULE:= test-screencap

LOCAL_MODULE_TAGS := tests

LOCAL_C_INCLUDES += \

	external/skia/include/core \

	external/skia/include/effects \

	external/skia/include/images \

	external/skia/src/ports \

	external/skia/include/utils

include $(BUILD_EXECUTABLE)

/*

 * 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 <surfaceflinger/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;

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

    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;

}