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68 lines
2.3 KiB
68 lines
2.3 KiB
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "JpegStub.h"
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#define LOG_NDEBUG 0
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#define LOG_TAG "EmulatedCamera_JPEGStub"
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#include <errno.h>
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#include <log/log.h>
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#include <stdlib.h>
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#include "Compressor.h"
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extern "C" void JpegStub_init(JpegStub* stub) {
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stub->mCompressor = static_cast<void*>(new Compressor());
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}
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extern "C" void JpegStub_cleanup(JpegStub* stub) {
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delete reinterpret_cast<Compressor*>(stub->mCompressor);
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stub->mCompressor = nullptr;
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}
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extern "C" int JpegStub_compress(JpegStub* stub,
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const void* buffer,
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int width,
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int height,
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int quality,
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ExifData* exifData)
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{
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Compressor* compressor = reinterpret_cast<Compressor*>(stub->mCompressor);
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if (compressor->compress(reinterpret_cast<const unsigned char*>(buffer),
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width, height, quality, exifData)) {
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ALOGV("%s: Compressed JPEG: %d[%dx%d] -> %zu bytes",
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__FUNCTION__, (width * height * 12) / 8,
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width, height, compressor->getCompressedData().size());
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return 0;
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}
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ALOGE("%s: JPEG compression failed", __FUNCTION__);
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return errno ? errno : EINVAL;
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}
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extern "C" void JpegStub_getCompressedImage(JpegStub* stub, void* buff) {
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Compressor* compressor = reinterpret_cast<Compressor*>(stub->mCompressor);
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const std::vector<unsigned char>& data = compressor->getCompressedData();
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memcpy(buff, &data[0], data.size());
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}
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extern "C" size_t JpegStub_getCompressedSize(JpegStub* stub) {
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Compressor* compressor = reinterpret_cast<Compressor*>(stub->mCompressor);
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return compressor->getCompressedData().size();
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}
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