/* * Copyright (C) 2014 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. */ //#define LOG_NDEBUG 0 #define LOG_TAG "ZeroFilter" #include #include #include #include "ZeroFilter.h" namespace android { status_t ZeroFilter::setParameters(const sp &msg) { sp params; CHECK(msg->findMessage("params", ¶ms)); int32_t invert; if (params->findInt32("invert", &invert)) { mInvertData = (invert != 0); } return OK; } status_t ZeroFilter::processBuffers( const sp &srcBuffer, const sp &outBuffer) { // assuming identical input & output buffers, since we're a copy filter if (mInvertData) { uint32_t* src = (uint32_t*)srcBuffer->data(); uint32_t* dest = (uint32_t*)outBuffer->data(); for (size_t i = 0; i < srcBuffer->size() / 4; ++i) { *(dest++) = *(src++) ^ 0xFFFFFFFF; } } else { memcpy(outBuffer->data(), srcBuffer->data(), srcBuffer->size()); } outBuffer->setRange(0, srcBuffer->size()); return OK; } } // namespace android