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/*
* Copyright 2011, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "BaseLayerAndroid.h"
#include "CreateJavaOutputStreamAdaptor.h"
#include "PictureSet.h"
#include "SkPicture.h"
#include <JNIUtility.h>
#include <JNIHelp.h>
#include <jni.h>
namespace android {
static bool nativeSerializeViewState(JNIEnv* env, jobject, jint jbaseLayer,
jobject jstream, jbyteArray jstorage)
{
BaseLayerAndroid* baseLayer = (BaseLayerAndroid*) jbaseLayer;
if (!baseLayer)
return false;
SkWStream *stream = CreateJavaOutputStreamAdaptor(env, jstream, jstorage);
#if USE(ACCELERATED_COMPOSITING)
stream->write32(baseLayer->getBackgroundColor().rgb());
#else
stream->write32(0);
#endif
SkPicture picture;
PictureSet* content = baseLayer->content();
baseLayer->drawCanvas(picture.beginRecording(content->width(), content->height(),
SkPicture::kUsePathBoundsForClip_RecordingFlag));
picture.endRecording();
if (!stream)
return false;
picture.serialize(stream);
delete stream;
return true;
}
static BaseLayerAndroid* nativeDeserializeViewState(JNIEnv* env, jobject, jobject jstream,
jbyteArray jstorage)
{
SkStream* stream = CreateJavaInputStreamAdaptor(env, jstream, jstorage);
if (!stream)
return 0;
BaseLayerAndroid* layer = new BaseLayerAndroid();
Color color = stream->readU32();
#if USE(ACCELERATED_COMPOSITING)
layer->setBackgroundColor(color);
#endif
SkPicture* picture = new SkPicture(stream);
delete stream;
layer->setContent(picture);
return layer;
}
/*
* JNI registration
*/
static JNINativeMethod gSerializerMethods[] = {
{ "nativeSerializeViewState", "(ILjava/io/OutputStream;[B)Z",
(void*) nativeSerializeViewState },
{ "nativeDeserializeViewState", "(Ljava/io/InputStream;[B)I",
(void*) nativeDeserializeViewState },
};
int registerViewStateSerializer(JNIEnv* env)
{
return jniRegisterNativeMethods(env, "android/webkit/ViewStateSerializer",
gSerializerMethods, NELEM(gSerializerMethods));
}
}
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