// Copyright 2016 The PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <cstdint>
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#include <memory>
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#include <vector>
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#include "core/fxcodec/codec/codec_int.h"
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#include "core/fxge/include/fx_dib.h"
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CCodec_JpxModule g_module;
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struct DecoderDeleter {
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void operator()(CJPX_Decoder* decoder) { g_module.DestroyDecoder(decoder); }
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};
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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std::unique_ptr<CJPX_Decoder, DecoderDeleter> decoder(
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g_module.CreateDecoder(data, size, nullptr));
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if (!decoder)
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return 0;
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uint32_t width;
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uint32_t height;
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uint32_t components;
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g_module.GetImageInfo(decoder.get(), &width, &height, &components);
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FXDIB_Format format;
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if (components == 1) {
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format = FXDIB_8bppRgb;
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} else if (components <= 3) {
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format = FXDIB_Rgb;
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} else if (components == 4) {
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format = FXDIB_Rgb32;
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} else {
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width = (width * components + 2) / 3;
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format = FXDIB_Rgb;
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}
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std::unique_ptr<CFX_DIBitmap> bitmap(new CFX_DIBitmap);
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if (!bitmap->Create(width, height, format))
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return 0;
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std::vector<uint8_t> output_offsets(components);
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for (uint32_t i = 0; i < components; ++i)
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output_offsets[i] = i;
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g_module.Decode(decoder.get(), bitmap->GetBuffer(), bitmap->GetPitch(),
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output_offsets);
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return 0;
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}
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