1 /*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "jni.h"
18 #include "GraphicsJNI.h"
19 #include "core_jni_helpers.h"
20
21 #include "Picture.h"
22
23 #include "SkCanvas.h"
24 #include "SkStream.h"
25 #include "SkTemplates.h"
26 #include "CreateJavaOutputStreamAdaptor.h"
27
28 namespace android {
29
android_graphics_Picture_newPicture(JNIEnv * env,jobject,jlong srcHandle)30 static jlong android_graphics_Picture_newPicture(JNIEnv* env, jobject, jlong srcHandle) {
31 const Picture* src = reinterpret_cast<Picture*>(srcHandle);
32 return reinterpret_cast<jlong>(new Picture(src));
33 }
34
android_graphics_Picture_deserialize(JNIEnv * env,jobject,jobject jstream,jbyteArray jstorage)35 static jlong android_graphics_Picture_deserialize(JNIEnv* env, jobject, jobject jstream,
36 jbyteArray jstorage) {
37 Picture* picture = NULL;
38 SkStream* strm = CreateJavaInputStreamAdaptor(env, jstream, jstorage);
39 if (strm) {
40 picture = Picture::CreateFromStream(strm);
41 delete strm;
42 }
43 return reinterpret_cast<jlong>(picture);
44 }
45
android_graphics_Picture_killPicture(JNIEnv * env,jobject,jlong pictureHandle)46 static void android_graphics_Picture_killPicture(JNIEnv* env, jobject, jlong pictureHandle) {
47 Picture* picture = reinterpret_cast<Picture*>(pictureHandle);
48 SkASSERT(picture);
49 delete picture;
50 }
51
android_graphics_Picture_draw(JNIEnv * env,jobject,jlong canvasHandle,jlong pictureHandle)52 static void android_graphics_Picture_draw(JNIEnv* env, jobject, jlong canvasHandle,
53 jlong pictureHandle) {
54 Canvas* canvas = reinterpret_cast<Canvas*>(canvasHandle);
55 Picture* picture = reinterpret_cast<Picture*>(pictureHandle);
56 SkASSERT(canvas);
57 SkASSERT(picture);
58 picture->draw(canvas);
59 }
60
android_graphics_Picture_serialize(JNIEnv * env,jobject,jlong pictureHandle,jobject jstream,jbyteArray jstorage)61 static jboolean android_graphics_Picture_serialize(JNIEnv* env, jobject, jlong pictureHandle,
62 jobject jstream, jbyteArray jstorage) {
63 Picture* picture = reinterpret_cast<Picture*>(pictureHandle);
64 SkWStream* strm = CreateJavaOutputStreamAdaptor(env, jstream, jstorage);
65
66 if (NULL != strm) {
67 picture->serialize(strm);
68 delete strm;
69 return JNI_TRUE;
70 }
71 return JNI_FALSE;
72 }
73
android_graphics_Picture_getWidth(JNIEnv * env,jobject,jlong pictureHandle)74 static jint android_graphics_Picture_getWidth(JNIEnv* env, jobject, jlong pictureHandle) {
75 Picture* pict = reinterpret_cast<Picture*>(pictureHandle);
76 return static_cast<jint>(pict->width());
77 }
78
android_graphics_Picture_getHeight(JNIEnv * env,jobject,jlong pictureHandle)79 static jint android_graphics_Picture_getHeight(JNIEnv* env, jobject, jlong pictureHandle) {
80 Picture* pict = reinterpret_cast<Picture*>(pictureHandle);
81 return static_cast<jint>(pict->height());
82 }
83
android_graphics_Picture_beginRecording(JNIEnv * env,jobject,jlong pictHandle,jint w,jint h)84 static jlong android_graphics_Picture_beginRecording(JNIEnv* env, jobject, jlong pictHandle,
85 jint w, jint h) {
86 Picture* pict = reinterpret_cast<Picture*>(pictHandle);
87 Canvas* canvas = pict->beginRecording(w, h);
88 return reinterpret_cast<jlong>(canvas);
89 }
90
android_graphics_Picture_endRecording(JNIEnv * env,jobject,jlong pictHandle)91 static void android_graphics_Picture_endRecording(JNIEnv* env, jobject, jlong pictHandle) {
92 Picture* pict = reinterpret_cast<Picture*>(pictHandle);
93 pict->endRecording();
94 }
95
96 static JNINativeMethod gMethods[] = {
97 {"nativeGetWidth", "(J)I", (void*) android_graphics_Picture_getWidth},
98 {"nativeGetHeight", "(J)I", (void*) android_graphics_Picture_getHeight},
99 {"nativeConstructor", "(J)J", (void*) android_graphics_Picture_newPicture},
100 {"nativeCreateFromStream", "(Ljava/io/InputStream;[B)J", (void*)android_graphics_Picture_deserialize},
101 {"nativeBeginRecording", "(JII)J", (void*) android_graphics_Picture_beginRecording},
102 {"nativeEndRecording", "(J)V", (void*) android_graphics_Picture_endRecording},
103 {"nativeDraw", "(JJ)V", (void*) android_graphics_Picture_draw},
104 {"nativeWriteToStream", "(JLjava/io/OutputStream;[B)Z", (void*)android_graphics_Picture_serialize},
105 {"nativeDestructor","(J)V", (void*) android_graphics_Picture_killPicture}
106 };
107
register_android_graphics_Picture(JNIEnv * env)108 int register_android_graphics_Picture(JNIEnv* env) {
109 return RegisterMethodsOrDie(env, "android/graphics/Picture", gMethods, NELEM(gMethods));
110 }
111
112 }; // namespace android
113