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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 "SkCanvas.h"
#include "SkPicture.h"
#include "SkTemplates.h"
#include "CreateJavaOutputStreamAdaptor.h"
namespace android {
class SkPictureGlue {
public:
static SkPicture* newPicture(JNIEnv* env, jobject, const SkPicture* src) {
if (src) {
return new SkPicture(*src);
} else {
return new SkPicture;
}
}
static SkPicture* deserialize(JNIEnv* env, jobject, jobject jstream,
jbyteArray jstorage) {
SkPicture* picture = NULL;
SkStream* strm = CreateJavaInputStreamAdaptor(env, jstream, jstorage);
if (strm) {
picture = new SkPicture(strm);
delete strm;
}
return picture;
}
static void killPicture(JNIEnv* env, jobject, SkPicture* picture) {
SkASSERT(picture);
delete picture;
}
static void draw(JNIEnv* env, jobject, SkCanvas* canvas,
SkPicture* picture) {
SkASSERT(canvas);
SkASSERT(picture);
picture->draw(canvas);
}
static bool serialize(JNIEnv* env, jobject, SkPicture* picture,
jobject jstream, jbyteArray jstorage) {
SkWStream* strm = CreateJavaOutputStreamAdaptor(env, jstream, jstorage);
if (NULL != strm) {
picture->serialize(strm);
delete strm;
return true;
}
return false;
}
static int getWidth(JNIEnv* env, jobject jpic) {
NPE_CHECK_RETURN_ZERO(env, jpic);
return GraphicsJNI::getNativePicture(env, jpic)->width();
}
static int getHeight(JNIEnv* env, jobject jpic) {
NPE_CHECK_RETURN_ZERO(env, jpic);
return GraphicsJNI::getNativePicture(env, jpic)->height();
}
static SkCanvas* beginRecording(JNIEnv* env, jobject, SkPicture* pict,
int w, int h) {
// 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 canvas;
}
static void endRecording(JNIEnv* env, jobject, SkPicture* pict) {
pict->endRecording();
}
};
static JNINativeMethod gPictureMethods[] = {
{"getWidth", "()I", (void*) SkPictureGlue::getWidth},
{"getHeight", "()I", (void*) SkPictureGlue::getHeight},
{"nativeConstructor", "(I)I", (void*) SkPictureGlue::newPicture},
{"nativeCreateFromStream", "(Ljava/io/InputStream;[B)I", (void*)SkPictureGlue::deserialize},
{"nativeBeginRecording", "(III)I", (void*) SkPictureGlue::beginRecording},
{"nativeEndRecording", "(I)V", (void*) SkPictureGlue::endRecording},
{"nativeDraw", "(II)V", (void*) SkPictureGlue::draw},
{"nativeWriteToStream", "(ILjava/io/OutputStream;[B)Z", (void*)SkPictureGlue::serialize},
{"nativeDestructor","(I)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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