1/* libs/android_runtime/android/graphics/ColorFilter.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#include "jni.h" 19#include "GraphicsJNI.h" 20#include <android_runtime/AndroidRuntime.h> 21 22#include "SkColorFilter.h" 23#include "SkColorMatrixFilter.h" 24#include "SkPorterDuff.h" 25 26#include <Caches.h> 27 28namespace android { 29 30using namespace uirenderer; 31 32class SkColorFilterGlue { 33public: 34 static void finalizer(JNIEnv* env, jobject clazz, jlong skFilterHandle) { 35 SkColorFilter* filter = reinterpret_cast<SkColorFilter *>(skFilterHandle); 36 if (filter) SkSafeUnref(filter); 37 } 38 39 static jlong CreatePorterDuffFilter(JNIEnv* env, jobject, jint srcColor, 40 jint modeHandle) { 41 SkPorterDuff::Mode mode = (SkPorterDuff::Mode) modeHandle; 42 return reinterpret_cast<jlong>(SkColorFilter::CreateModeFilter(srcColor, SkPorterDuff::ToXfermodeMode(mode))); 43 } 44 45 static jlong CreateLightingFilter(JNIEnv* env, jobject, jint mul, jint add) { 46 return reinterpret_cast<jlong>(SkColorFilter::CreateLightingFilter(mul, add)); 47 } 48 49 static jlong CreateColorMatrixFilter(JNIEnv* env, jobject, jfloatArray jarray) { 50 AutoJavaFloatArray autoArray(env, jarray, 20); 51 const float* src = autoArray.ptr(); 52 53#ifdef SK_SCALAR_IS_FLOAT 54 return reinterpret_cast<jlong>(SkColorMatrixFilter::Create(src)); 55#else 56 SkASSERT(false); 57#endif 58 } 59}; 60 61static JNINativeMethod colorfilter_methods[] = { 62 {"destroyFilter", "(J)V", (void*) SkColorFilterGlue::finalizer} 63}; 64 65static JNINativeMethod porterduff_methods[] = { 66 { "native_CreatePorterDuffFilter", "(II)J", (void*) SkColorFilterGlue::CreatePorterDuffFilter }, 67}; 68 69static JNINativeMethod lighting_methods[] = { 70 { "native_CreateLightingFilter", "(II)J", (void*) SkColorFilterGlue::CreateLightingFilter }, 71}; 72 73static JNINativeMethod colormatrix_methods[] = { 74 { "nativeColorMatrixFilter", "([F)J", (void*) SkColorFilterGlue::CreateColorMatrixFilter }, 75}; 76 77#define REG(env, name, array) \ 78 result = android::AndroidRuntime::registerNativeMethods(env, name, array, \ 79 SK_ARRAY_COUNT(array)); \ 80 if (result < 0) return result 81 82int register_android_graphics_ColorFilter(JNIEnv* env) { 83 int result; 84 85 REG(env, "android/graphics/ColorFilter", colorfilter_methods); 86 REG(env, "android/graphics/PorterDuffColorFilter", porterduff_methods); 87 REG(env, "android/graphics/LightingColorFilter", lighting_methods); 88 REG(env, "android/graphics/ColorMatrixColorFilter", colormatrix_methods); 89 90 return 0; 91} 92 93} 94