| /* libs/android_runtime/android/graphics/ColorFilter.cpp |
| ** |
| ** Copyright 2006, The Android Open Source Project |
| ** |
| ** Licensed under the Apache License, Version 2.0 (the "License"); |
| ** you may not use this file except in compliance with the License. |
| ** You may obtain a copy of the License at |
| ** |
| ** http://www.apache.org/licenses/LICENSE-2.0 |
| ** |
| ** Unless required by applicable law or agreed to in writing, software |
| ** distributed under the License is distributed on an "AS IS" BASIS, |
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ** See the License for the specific language governing permissions and |
| ** limitations under the License. |
| */ |
| |
| #include "jni.h" |
| #include "GraphicsJNI.h" |
| #include <android_runtime/AndroidRuntime.h> |
| |
| #include "SkColorFilter.h" |
| #include "SkColorMatrixFilter.h" |
| #include "SkPorterDuff.h" |
| |
| #include <Caches.h> |
| |
| namespace android { |
| |
| using namespace uirenderer; |
| |
| class SkColorFilterGlue { |
| public: |
| static void finalizer(JNIEnv* env, jobject clazz, jlong skFilterHandle) { |
| SkColorFilter* filter = reinterpret_cast<SkColorFilter *>(skFilterHandle); |
| if (filter) SkSafeUnref(filter); |
| } |
| |
| static jlong CreatePorterDuffFilter(JNIEnv* env, jobject, jint srcColor, |
| jint modeHandle) { |
| SkPorterDuff::Mode mode = (SkPorterDuff::Mode) modeHandle; |
| return reinterpret_cast<jlong>(SkColorFilter::CreateModeFilter(srcColor, SkPorterDuff::ToXfermodeMode(mode))); |
| } |
| |
| static jlong CreateLightingFilter(JNIEnv* env, jobject, jint mul, jint add) { |
| return reinterpret_cast<jlong>(SkColorFilter::CreateLightingFilter(mul, add)); |
| } |
| |
| static jlong CreateColorMatrixFilter(JNIEnv* env, jobject, jfloatArray jarray) { |
| AutoJavaFloatArray autoArray(env, jarray, 20); |
| const float* src = autoArray.ptr(); |
| |
| #ifdef SK_SCALAR_IS_FIXED |
| SkFixed array[20]; |
| for (int i = 0; i < 20; i++) { |
| array[i] = SkFloatToScalar(src[i]); |
| } |
| return reinterpret_cast<jlong>(new SkColorMatrixFilter(array)); |
| #else |
| return reinterpret_cast<jlong>(new SkColorMatrixFilter(src)); |
| #endif |
| } |
| }; |
| |
| static JNINativeMethod colorfilter_methods[] = { |
| {"destroyFilter", "(J)V", (void*) SkColorFilterGlue::finalizer} |
| }; |
| |
| static JNINativeMethod porterduff_methods[] = { |
| { "native_CreatePorterDuffFilter", "(II)J", (void*) SkColorFilterGlue::CreatePorterDuffFilter }, |
| }; |
| |
| static JNINativeMethod lighting_methods[] = { |
| { "native_CreateLightingFilter", "(II)J", (void*) SkColorFilterGlue::CreateLightingFilter }, |
| }; |
| |
| static JNINativeMethod colormatrix_methods[] = { |
| { "nativeColorMatrixFilter", "([F)J", (void*) SkColorFilterGlue::CreateColorMatrixFilter }, |
| }; |
| |
| #define REG(env, name, array) \ |
| result = android::AndroidRuntime::registerNativeMethods(env, name, array, \ |
| SK_ARRAY_COUNT(array)); \ |
| if (result < 0) return result |
| |
| int register_android_graphics_ColorFilter(JNIEnv* env) { |
| int result; |
| |
| REG(env, "android/graphics/ColorFilter", colorfilter_methods); |
| REG(env, "android/graphics/PorterDuffColorFilter", porterduff_methods); |
| REG(env, "android/graphics/LightingColorFilter", lighting_methods); |
| REG(env, "android/graphics/ColorMatrixColorFilter", colormatrix_methods); |
| |
| return 0; |
| } |
| |
| } |