129 lines
4.2 KiB
C++
129 lines
4.2 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "jni.h"
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#include "GraphicsJNI.h"
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#include <android_runtime/AndroidRuntime.h>
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#include "SkCanvas.h"
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#include "SkPicture.h"
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#include "SkTemplates.h"
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#include "CreateJavaOutputStreamAdaptor.h"
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namespace android {
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class SkPictureGlue {
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public:
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static SkPicture* newPicture(JNIEnv* env, jobject, const SkPicture* src) {
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if (src) {
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return new SkPicture(*src);
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} else {
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return new SkPicture;
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}
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}
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static SkPicture* deserialize(JNIEnv* env, jobject, jobject jstream,
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jbyteArray jstorage) {
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SkPicture* picture = NULL;
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SkStream* strm = CreateJavaInputStreamAdaptor(env, jstream, jstorage);
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if (strm) {
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picture = new SkPicture(strm);
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delete strm;
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}
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return picture;
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}
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static void killPicture(JNIEnv* env, jobject, SkPicture* picture) {
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SkASSERT(picture);
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delete picture;
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}
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static void draw(JNIEnv* env, jobject, SkCanvas* canvas,
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SkPicture* picture) {
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SkASSERT(canvas);
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SkASSERT(picture);
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picture->draw(canvas);
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}
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static bool serialize(JNIEnv* env, jobject, SkPicture* picture,
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jobject jstream, jbyteArray jstorage) {
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SkWStream* strm = CreateJavaOutputStreamAdaptor(env, jstream, jstorage);
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if (NULL != strm) {
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picture->serialize(strm);
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delete strm;
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return true;
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}
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return false;
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}
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static int getWidth(JNIEnv* env, jobject jpic) {
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NPE_CHECK_RETURN_ZERO(env, jpic);
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return GraphicsJNI::getNativePicture(env, jpic)->width();
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}
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static int getHeight(JNIEnv* env, jobject jpic) {
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NPE_CHECK_RETURN_ZERO(env, jpic);
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return GraphicsJNI::getNativePicture(env, jpic)->height();
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}
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static SkCanvas* beginRecording(JNIEnv* env, jobject, SkPicture* pict,
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int w, int h) {
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// beginRecording does not ref its return value, it just returns it.
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SkCanvas* canvas = pict->beginRecording(w, h);
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// the java side will wrap this guy in a Canvas.java, which will call
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// unref in its finalizer, so we have to ref it here, so that both that
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// Canvas.java and our picture can both be owners
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canvas->ref();
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return canvas;
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}
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static void endRecording(JNIEnv* env, jobject, SkPicture* pict) {
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pict->endRecording();
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}
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};
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static JNINativeMethod gPictureMethods[] = {
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{"getWidth", "()I", (void*) SkPictureGlue::getWidth},
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{"getHeight", "()I", (void*) SkPictureGlue::getHeight},
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{"nativeConstructor", "(I)I", (void*) SkPictureGlue::newPicture},
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{"nativeCreateFromStream", "(Ljava/io/InputStream;[B)I", (void*)SkPictureGlue::deserialize},
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{"nativeBeginRecording", "(III)I", (void*) SkPictureGlue::beginRecording},
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{"nativeEndRecording", "(I)V", (void*) SkPictureGlue::endRecording},
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{"nativeDraw", "(II)V", (void*) SkPictureGlue::draw},
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{"nativeWriteToStream", "(ILjava/io/OutputStream;[B)Z", (void*)SkPictureGlue::serialize},
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{"nativeDestructor","(I)V", (void*) SkPictureGlue::killPicture}
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};
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#include <android_runtime/AndroidRuntime.h>
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#define REG(env, name, array) \
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result = android::AndroidRuntime::registerNativeMethods(env, name, array, \
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SK_ARRAY_COUNT(array)); \
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if (result < 0) return result
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int register_android_graphics_Picture(JNIEnv* env) {
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int result;
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REG(env, "android/graphics/Picture", gPictureMethods);
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return result;
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}
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}
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