1 /* 2 * Copyright (C) 2014 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 //#define LOG_NDEBUG 0 18 #define LOG_TAG "IntrinsicBlurFilter" 19 20 #include <utils/Log.h> 21 22 #include <media/stagefright/foundation/ABuffer.h> 23 #include <media/stagefright/foundation/ADebug.h> 24 #include <media/stagefright/foundation/AMessage.h> 25 26 #include "IntrinsicBlurFilter.h" 27 28 namespace android { 29 30 status_t IntrinsicBlurFilter::configure(const sp<AMessage> &msg) { 31 status_t err = SimpleFilter::configure(msg); 32 if (err != OK) { 33 return err; 34 } 35 36 if (!msg->findString("cacheDir", &mCacheDir)) { 37 ALOGE("Failed to find cache directory in config message."); 38 return NAME_NOT_FOUND; 39 } 40 41 return OK; 42 } 43 44 status_t IntrinsicBlurFilter::start() { 45 // TODO: use a single RS context object for entire application 46 mRS = new RSC::RS(); 47 48 if (!mRS->init(mCacheDir.c_str())) { 49 ALOGE("Failed to initialize RenderScript context."); 50 return NO_INIT; 51 } 52 53 // 32-bit elements for ARGB8888 54 RSC::sp<const RSC::Element> e = RSC::Element::U8_4(mRS); 55 56 RSC::Type::Builder tb(mRS, e); 57 tb.setX(mWidth); 58 tb.setY(mHeight); 59 RSC::sp<const RSC::Type> t = tb.create(); 60 61 mAllocIn = RSC::Allocation::createTyped(mRS, t); 62 mAllocOut = RSC::Allocation::createTyped(mRS, t); 63 64 mBlur = RSC::ScriptIntrinsicBlur::create(mRS, e); 65 mBlur->setRadius(mBlurRadius); 66 mBlur->setInput(mAllocIn); 67 68 return OK; 69 } 70 71 void IntrinsicBlurFilter::reset() { 72 mBlur.clear(); 73 mAllocOut.clear(); 74 mAllocIn.clear(); 75 mRS.clear(); 76 } 77 78 status_t IntrinsicBlurFilter::setParameters(const sp<AMessage> &msg) { 79 sp<AMessage> params; 80 CHECK(msg->findMessage("params", ¶ms)); 81 82 float blurRadius; 83 if (params->findFloat("blur-radius", &blurRadius)) { 84 mBlurRadius = blurRadius; 85 } 86 87 return OK; 88 } 89 90 status_t IntrinsicBlurFilter::processBuffers( 91 const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer) { 92 mAllocIn->copy1DRangeFrom(0, mWidth * mHeight, srcBuffer->data()); 93 mBlur->forEach(mAllocOut); 94 mAllocOut->copy1DRangeTo(0, mWidth * mHeight, outBuffer->data()); 95 96 return OK; 97 } 98 99 } // namespace android 100