Picture.cpp revision 9066cfe9886ac131c34d59ed0e2d287b0e3c0087
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "jni.h" 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "GraphicsJNI.h" 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <android_runtime/AndroidRuntime.h> 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "SkCanvas.h" 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "SkPicture.h" 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "SkTemplates.h" 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include "CreateJavaOutputStreamAdaptor.h" 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectnamespace android { 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectclass SkPictureGlue { 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic: 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static SkPicture* newPicture(JNIEnv* env, jobject, const SkPicture* src) { 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (src) { 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SkPicture(*src); 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SkPicture; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static SkPicture* deserialize(JNIEnv* env, jobject, jobject jstream, 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jbyteArray jstorage) { 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkPicture* picture = NULL; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkStream* strm = CreateJavaInputStreamAdaptor(env, jstream, jstorage); 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (strm) { 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project picture = new SkPicture(strm); 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project delete strm; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return picture; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static void killPicture(JNIEnv* env, jobject, SkPicture* picture) { 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkASSERT(picture); 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project delete picture; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static void draw(JNIEnv* env, jobject, SkCanvas* canvas, 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkPicture* picture) { 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkASSERT(canvas); 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkASSERT(picture); 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project picture->draw(canvas); 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static bool serialize(JNIEnv* env, jobject, SkPicture* picture, 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project jobject jstream, jbyteArray jstorage) { 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkWStream* strm = CreateJavaOutputStreamAdaptor(env, jstream, jstorage); 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (NULL != strm) { 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project picture->serialize(strm); 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project delete strm; 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getWidth(JNIEnv* env, jobject jpic) { 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project NPE_CHECK_RETURN_ZERO(env, jpic); 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return GraphicsJNI::getNativePicture(env, jpic)->width(); 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getHeight(JNIEnv* env, jobject jpic) { 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project NPE_CHECK_RETURN_ZERO(env, jpic); 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return GraphicsJNI::getNativePicture(env, jpic)->height(); 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static SkCanvas* beginRecording(JNIEnv* env, jobject, SkPicture* pict, 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int w, int h) { 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // beginRecording does not ref its return value, it just returns it. 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SkCanvas* canvas = pict->beginRecording(w, h); 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the java side will wrap this guy in a Canvas.java, which will call 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // unref in its finalizer, so we have to ref it here, so that both that 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Canvas.java and our picture can both be owners 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas->ref(); 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return canvas; 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static void endRecording(JNIEnv* env, jobject, SkPicture* pict) { 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pict->endRecording(); 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectstatic JNINativeMethod gPictureMethods[] = { 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getWidth", "()I", (void*) SkPictureGlue::getWidth}, 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"getHeight", "()I", (void*) SkPictureGlue::getHeight}, 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"nativeConstructor", "(I)I", (void*) SkPictureGlue::newPicture}, 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"nativeCreateFromStream", "(Ljava/io/InputStream;[B)I", (void*)SkPictureGlue::deserialize}, 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"nativeBeginRecording", "(III)I", (void*) SkPictureGlue::beginRecording}, 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"nativeEndRecording", "(I)V", (void*) SkPictureGlue::endRecording}, 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"nativeDraw", "(II)V", (void*) SkPictureGlue::draw}, 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"nativeWriteToStream", "(ILjava/io/OutputStream;[B)Z", (void*)SkPictureGlue::serialize}, 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project {"nativeDestructor","(I)V", (void*) SkPictureGlue::killPicture} 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project}; 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#include <android_runtime/AndroidRuntime.h> 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project#define REG(env, name, array) \ 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result = android::AndroidRuntime::registerNativeMethods(env, name, array, \ 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SK_ARRAY_COUNT(array)); \ 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (result < 0) return result 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectint register_android_graphics_Picture(JNIEnv* env) { 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int result; 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project REG(env, "android/graphics/Picture", gPictureMethods); 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return result; 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 129