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/*
* Copyright (C) 2008 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 "jni.h"
#include "GraphicsJNI.h"
#include <android_runtime/AndroidRuntime.h>
#include "AndroidPicture.h"
#include "SkCanvas.h"
#include "SkStream.h"
#include "SkTemplates.h"
#include "CreateJavaOutputStreamAdaptor.h"
namespace android {
class SkPictureGlue {
public:
static jlong newPicture(JNIEnv* env, jobject, jlong srcHandle) {
const AndroidPicture* src = reinterpret_cast<AndroidPicture*>(srcHandle);
return reinterpret_cast<jlong>(new AndroidPicture(src));
}
static jlong deserialize(JNIEnv* env, jobject, jobject jstream,
jbyteArray jstorage) {
AndroidPicture* picture = NULL;
SkStream* strm = CreateJavaInputStreamAdaptor(env, jstream, jstorage);
if (strm) {
picture = AndroidPicture::CreateFromStream(strm);
delete strm;
}
return reinterpret_cast<jlong>(picture);
}
static void killPicture(JNIEnv* env, jobject, jlong pictureHandle) {
AndroidPicture* picture = reinterpret_cast<AndroidPicture*>(pictureHandle);
SkASSERT(picture);
delete picture;
}
static void draw(JNIEnv* env, jobject, jlong canvasHandle,
jlong pictureHandle) {
SkCanvas* canvas = GraphicsJNI::getNativeCanvas(canvasHandle);
AndroidPicture* picture = reinterpret_cast<AndroidPicture*>(pictureHandle);
SkASSERT(canvas);
SkASSERT(picture);
picture->draw(canvas);
}
static jboolean serialize(JNIEnv* env, jobject, jlong pictureHandle,
jobject jstream, jbyteArray jstorage) {
AndroidPicture* picture = reinterpret_cast<AndroidPicture*>(pictureHandle);
SkWStream* strm = CreateJavaOutputStreamAdaptor(env, jstream, jstorage);
if (NULL != strm) {
picture->serialize(strm);
delete strm;
return JNI_TRUE;
}
return JNI_FALSE;
}
static jint getWidth(JNIEnv* env, jobject jpic) {
NPE_CHECK_RETURN_ZERO(env, jpic);
AndroidPicture* pict = GraphicsJNI::getNativePicture(env, jpic);
int width = pict->width();
return static_cast<jint>(width);
}
static jint getHeight(JNIEnv* env, jobject jpic) {
NPE_CHECK_RETURN_ZERO(env, jpic);
AndroidPicture* pict = GraphicsJNI::getNativePicture(env, jpic);
int height = pict->height();
return static_cast<jint>(height);
}
static jlong beginRecording(JNIEnv* env, jobject, jlong pictHandle,
jint w, jint h) {
AndroidPicture* pict = reinterpret_cast<AndroidPicture*>(pictHandle);
// beginRecording does not ref its return value, it just returns it.
SkCanvas* canvas = pict->beginRecording(w, h);
// the java side will wrap this guy in a Canvas.java, which will call
// unref in its finalizer, so we have to ref it here, so that both that
// Canvas.java and our picture can both be owners
canvas->ref();
return reinterpret_cast<jlong>(canvas);
}
static void endRecording(JNIEnv* env, jobject, jlong pictHandle) {
AndroidPicture* pict = reinterpret_cast<AndroidPicture*>(pictHandle);
pict->endRecording();
}
};
static JNINativeMethod gPictureMethods[] = {
{"getWidth", "()I", (void*) SkPictureGlue::getWidth},
{"getHeight", "()I", (void*) SkPictureGlue::getHeight},
{"nativeConstructor", "(J)J", (void*) SkPictureGlue::newPicture},
{"nativeCreateFromStream", "(Ljava/io/InputStream;[B)J", (void*)SkPictureGlue::deserialize},
{"nativeBeginRecording", "(JII)J", (void*) SkPictureGlue::beginRecording},
{"nativeEndRecording", "(J)V", (void*) SkPictureGlue::endRecording},
{"nativeDraw", "(JJ)V", (void*) SkPictureGlue::draw},
{"nativeWriteToStream", "(JLjava/io/OutputStream;[B)Z", (void*)SkPictureGlue::serialize},
{"nativeDestructor","(J)V", (void*) SkPictureGlue::killPicture}
};
#include <android_runtime/AndroidRuntime.h>
#define REG(env, name, array) \
result = android::AndroidRuntime::registerNativeMethods(env, name, array, \
SK_ARRAY_COUNT(array)); \
if (result < 0) return result
int register_android_graphics_Picture(JNIEnv* env) {
int result;
REG(env, "android/graphics/Picture", gPictureMethods);
return result;
}
}
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