PorterDuff.cpp revision e3a40ea488c7cfa396d5901255719a6ddab791d4 
1/* libs/android_runtime/android/graphics/PorterDuff.cpp
2**
3** Copyright 2006, The Android Open Source Project
4**
5** Licensed under the Apache License, Version 2.0 (the "License");
6** you may not use this file except in compliance with the License.
7** You may obtain a copy of the License at
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
11** Unless required by applicable law or agreed to in writing, software
12** distributed under the License is distributed on an "AS IS" BASIS,
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** See the License for the specific language governing permissions and
15** limitations under the License.
16*/
17
18// This file was generated from the C++ include file: SkPorterDuff.h
19// Any changes made to this file will be discarded by the build.
20// To change this file, either edit the include, or device/tools/gluemaker/main.cpp,
21// or one of the auxilary file specifications in device/tools/gluemaker.
22
23#include "jni.h"
24#include "GraphicsJNI.h"
25#include "core_jni_helpers.h"
26
27#include "SkXfermode.h"
28
29namespace android {
30
31class SkPorterDuffGlue {
32public:
33
34    static jlong CreateXfermode(JNIEnv* env, jobject, jint modeHandle) {
35        // validate that the Java enum values match our expectations
36        static_assert(0  == SkXfermode::kClear_Mode,    "xfermode_mismatch");
37        static_assert(1  == SkXfermode::kSrc_Mode,      "xfermode_mismatch");
38        static_assert(2  == SkXfermode::kDst_Mode,      "xfermode_mismatch");
39        static_assert(3  == SkXfermode::kSrcOver_Mode,  "xfermode_mismatch");
40        static_assert(4  == SkXfermode::kDstOver_Mode,  "xfermode_mismatch");
41        static_assert(5  == SkXfermode::kSrcIn_Mode,    "xfermode_mismatch");
42        static_assert(6  == SkXfermode::kDstIn_Mode,    "xfermode_mismatch");
43        static_assert(7  == SkXfermode::kSrcOut_Mode,   "xfermode_mismatch");
44        static_assert(8  == SkXfermode::kDstOut_Mode,   "xfermode_mismatch");
45        static_assert(9  == SkXfermode::kSrcATop_Mode,  "xfermode_mismatch");
46        static_assert(10 == SkXfermode::kDstATop_Mode,  "xfermode_mismatch");
47        static_assert(11 == SkXfermode::kXor_Mode,      "xfermode_mismatch");
48        static_assert(16 == SkXfermode::kDarken_Mode,   "xfermode_mismatch");
49        static_assert(17 == SkXfermode::kLighten_Mode,  "xfermode_mismatch");
50        static_assert(13 == SkXfermode::kModulate_Mode, "xfermode_mismatch");
51        static_assert(14 == SkXfermode::kScreen_Mode,   "xfermode_mismatch");
52        static_assert(12 == SkXfermode::kPlus_Mode,     "xfermode_mismatch");
53        static_assert(15 == SkXfermode::kOverlay_Mode,  "xfermode_mismatch");
54
55        SkXfermode::Mode mode = static_cast<SkXfermode::Mode>(modeHandle);
56        return reinterpret_cast<jlong>(SkXfermode::Create(mode));
57    }
58
59};
60
61static JNINativeMethod methods[] = {
62    {"nativeCreateXfermode","(I)J", (void*) SkPorterDuffGlue::CreateXfermode},
63};
64
65int register_android_graphics_PorterDuff(JNIEnv* env) {
66    return RegisterMethodsOrDie(env, "android/graphics/PorterDuffXfermode", methods, NELEM(methods));
67}
68
69}
70