// Copyright 2016 The PDFium Authors. All rights reserved.
|
// Use of this source code is governed by a BSD-style license that can be
|
// found in the LICENSE file.
|
|
#ifndef TESTING_LIBFUZZER_XFA_CODEC_FUZZER_H_
|
#define TESTING_LIBFUZZER_XFA_CODEC_FUZZER_H_
|
|
#include <memory>
|
|
#include "core/fxcodec/codec/include/ccodec_progressivedecoder.h"
|
#include "core/fxcodec/include/fx_codec.h"
|
#include "core/fxcrt/include/fx_stream.h"
|
|
class XFACodecFuzzer {
|
public:
|
static int Fuzz(const uint8_t* data, size_t size, FXCODEC_IMAGE_TYPE type) {
|
std::unique_ptr<CCodec_ModuleMgr> mgr(new CCodec_ModuleMgr());
|
std::unique_ptr<CCodec_ProgressiveDecoder> decoder(
|
mgr->CreateProgressiveDecoder());
|
Reader source(data, size);
|
|
FXCODEC_STATUS status =
|
decoder->LoadImageInfo(&source, type, nullptr, true);
|
if (status != FXCODEC_STATUS_FRAME_READY)
|
return 0;
|
|
std::unique_ptr<CFX_DIBitmap> bitmap(new CFX_DIBitmap);
|
bitmap->Create(decoder->GetWidth(), decoder->GetHeight(), FXDIB_Argb);
|
|
int32_t frames;
|
if (decoder->GetFrames(frames) != FXCODEC_STATUS_DECODE_READY ||
|
frames == 0)
|
return 0;
|
|
status = decoder->StartDecode(bitmap.get(), 0, 0, bitmap->GetWidth(),
|
bitmap->GetHeight());
|
while (status == FXCODEC_STATUS_DECODE_TOBECONTINUE)
|
status = decoder->ContinueDecode();
|
|
return 0;
|
}
|
|
private:
|
class Reader : public IFX_FileRead {
|
public:
|
Reader(const uint8_t* data, size_t size) : m_data(data), m_size(size) {}
|
~Reader() {}
|
|
void Release() override {}
|
|
FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override {
|
if (offset + size > m_size)
|
size = m_size - offset;
|
memcpy(buffer, m_data + offset, size);
|
return TRUE;
|
}
|
|
FX_FILESIZE GetSize() override { return static_cast<FX_FILESIZE>(m_size); }
|
|
private:
|
const uint8_t* const m_data;
|
size_t m_size;
|
};
|
};
|
|
#endif // TESTING_LIBFUZZER_XFA_CODEC_FUZZER_H_
|