diff options
Diffstat (limited to 'media/libstagefright/filters/IntrinsicBlurFilter.cpp')
-rw-r--r-- | media/libstagefright/filters/IntrinsicBlurFilter.cpp | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/media/libstagefright/filters/IntrinsicBlurFilter.cpp b/media/libstagefright/filters/IntrinsicBlurFilter.cpp new file mode 100644 index 0000000..cbcf699 --- /dev/null +++ b/media/libstagefright/filters/IntrinsicBlurFilter.cpp @@ -0,0 +1,99 @@ +/* + * 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 "IntrinsicBlurFilter" + +#include <utils/Log.h> + +#include <media/stagefright/foundation/ABuffer.h> +#include <media/stagefright/foundation/ADebug.h> +#include <media/stagefright/foundation/AMessage.h> + +#include "IntrinsicBlurFilter.h" + +namespace android { + +status_t IntrinsicBlurFilter::configure(const sp<AMessage> &msg) { + status_t err = SimpleFilter::configure(msg); + if (err != OK) { + return err; + } + + if (!msg->findString("cacheDir", &mCacheDir)) { + ALOGE("Failed to find cache directory in config message."); + return NAME_NOT_FOUND; + } + + return OK; +} + +status_t IntrinsicBlurFilter::start() { + // TODO: use a single RS context object for entire application + mRS = new RSC::RS(); + + if (!mRS->init(mCacheDir.c_str())) { + ALOGE("Failed to initialize RenderScript context."); + return NO_INIT; + } + + // 32-bit elements for ARGB8888 + RSC::sp<const RSC::Element> e = RSC::Element::U8_4(mRS); + + RSC::Type::Builder tb(mRS, e); + tb.setX(mWidth); + tb.setY(mHeight); + RSC::sp<const RSC::Type> t = tb.create(); + + mAllocIn = RSC::Allocation::createTyped(mRS, t); + mAllocOut = RSC::Allocation::createTyped(mRS, t); + + mBlur = RSC::ScriptIntrinsicBlur::create(mRS, e); + mBlur->setRadius(mBlurRadius); + mBlur->setInput(mAllocIn); + + return OK; +} + +void IntrinsicBlurFilter::reset() { + mBlur.clear(); + mAllocOut.clear(); + mAllocIn.clear(); + mRS.clear(); +} + +status_t IntrinsicBlurFilter::setParameters(const sp<AMessage> &msg) { + sp<AMessage> params; + CHECK(msg->findMessage("params", ¶ms)); + + float blurRadius; + if (params->findFloat("blur-radius", &blurRadius)) { + mBlurRadius = blurRadius; + } + + return OK; +} + +status_t IntrinsicBlurFilter::processBuffers( + const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer) { + mAllocIn->copy1DRangeFrom(0, mWidth * mHeight, srcBuffer->data()); + mBlur->forEach(mAllocOut); + mAllocOut->copy1DRangeTo(0, mWidth * mHeight, outBuffer->data()); + + return OK; +} + +} // namespace android |