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1 /*
2  * Copyright (C) 2007 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 <android_runtime/AndroidRuntime.h>
20 
21 #include "SkAvoidXfermode.h"
22 #include "SkPixelXorXfermode.h"
23 
24 namespace android {
25 
26 class SkXfermodeGlue {
27 public:
28 
finalizer(JNIEnv * env,jobject,jlong objHandle)29     static void finalizer(JNIEnv* env, jobject, jlong objHandle)
30     {
31         SkXfermode* obj = reinterpret_cast<SkXfermode *>(objHandle);
32         SkSafeUnref(obj);
33     }
34 
avoid_create(JNIEnv * env,jobject,jint opColor,jint tolerance,jint modeHandle)35     static jlong avoid_create(JNIEnv* env, jobject, jint opColor,
36                                 jint tolerance, jint modeHandle)
37     {
38         SkAvoidXfermode::Mode mode = static_cast<SkAvoidXfermode::Mode>(modeHandle);
39         return reinterpret_cast<jlong>(SkAvoidXfermode::Create(opColor, tolerance, mode));
40     }
41 
pixelxor_create(JNIEnv * env,jobject,jint opColor)42     static jlong pixelxor_create(JNIEnv* env, jobject, jint opColor)
43     {
44         return reinterpret_cast<jlong>(SkPixelXorXfermode::Create(opColor));
45     }
46 };
47 
48 ///////////////////////////////////////////////////////////////////////////////
49 
50 static JNINativeMethod gXfermodeMethods[] = {
51     {"finalizer", "(J)V", (void*) SkXfermodeGlue::finalizer}
52 };
53 
54 static JNINativeMethod gAvoidMethods[] = {
55     {"nativeCreate", "(III)J", (void*) SkXfermodeGlue::avoid_create}
56 };
57 
58 static JNINativeMethod gPixelXorMethods[] = {
59     {"nativeCreate", "(I)J", (void*) SkXfermodeGlue::pixelxor_create}
60 };
61 
62 #include <android_runtime/AndroidRuntime.h>
63 
64 #define REG(env, name, array)                                              \
65     result = android::AndroidRuntime::registerNativeMethods(env, name, array, \
66                                                   SK_ARRAY_COUNT(array));  \
67     if (result < 0) return result
68 
register_android_graphics_Xfermode(JNIEnv * env)69 int register_android_graphics_Xfermode(JNIEnv* env) {
70     int result;
71 
72     REG(env, "android/graphics/Xfermode", gXfermodeMethods);
73     REG(env, "android/graphics/AvoidXfermode", gAvoidMethods);
74     REG(env, "android/graphics/PixelXorXfermode", gPixelXorMethods);
75 
76     return 0;
77 }
78 
79 }
80