71 lines
2.5 KiB
C++
71 lines
2.5 KiB
C++
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/**
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* Copyright (C) 2021 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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// This PoC is written taking reference from frameworks/base/native/graphics/jni/imagedecoder.cpp
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#include <android/imagedecoder.h>
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#include <binder/IPCThreadState.h>
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#include <vector>
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#include "../includes/common.h"
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constexpr int32_t kMaxDimension = 5000;
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struct DecoderDeleter {
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void operator()(AImageDecoder *decoder) const { AImageDecoder_delete(decoder); }
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};
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using DecoderPointer = std::unique_ptr<AImageDecoder, DecoderDeleter>;
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DecoderPointer makeDecoder(const uint8_t *data, size_t size) {
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AImageDecoder *decoder = nullptr;
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int result = AImageDecoder_createFromBuffer(data, size, &decoder);
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if (result != ANDROID_IMAGE_DECODER_SUCCESS) {
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return nullptr;
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}
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return DecoderPointer(decoder);
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}
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int main(int argc, char **argv) {
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FAIL_CHECK(argc >= 2);
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android::ProcessState::self()->startThreadPool();
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char *filename = argv[1];
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FILE *file = fopen(filename, "r");
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FAIL_CHECK(file);
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fseek(file, 0, SEEK_END);
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size_t size = ftell(file);
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fseek(file, 0, SEEK_SET);
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std::vector<uint8_t> buffer(size);
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fread((void *)buffer.data(), 1, size, file);
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fclose(file);
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DecoderPointer decoder = makeDecoder(buffer.data(), size);
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FAIL_CHECK(decoder);
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const AImageDecoderHeaderInfo *info = AImageDecoder_getHeaderInfo(decoder.get());
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int32_t width = AImageDecoderHeaderInfo_getWidth(info);
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int32_t height = AImageDecoderHeaderInfo_getHeight(info);
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FAIL_CHECK(width <= kMaxDimension && height <= kMaxDimension);
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size_t stride = AImageDecoder_getMinimumStride(decoder.get());
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size_t pixelSize = height * stride;
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std::vector<uint8_t> pixels(pixelSize);
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time_t test_started = start_timer();
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while (timer_active(test_started)) {
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int32_t result = AImageDecoder_decodeImage(decoder.get(), pixels.data(), stride, pixelSize);
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if (result != ANDROID_IMAGE_DECODER_SUCCESS) {
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break;
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}
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}
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return EXIT_SUCCESS;
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}
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