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// Copyright 2018 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.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_FXCODEC_CODEC_CODEC_MODULE_IFACE_H_
#define CORE_FXCODEC_CODEC_CODEC_MODULE_IFACE_H_
#include "core/fxcrt/fx_system.h"
#include "third_party/base/span.h"
class CFX_DIBAttribute;
class CodecModuleIface {
public:
class Context {
public:
virtual ~Context() = default;
};
virtual ~CodecModuleIface() = default;
// Returns the number of unprocessed bytes remaining in the input buffer.
virtual FX_FILESIZE GetAvailInput(Context* pContext) const = 0;
// Provides a new input buffer to the codec. Returns true on success,
// setting details about the image extracted from the buffer into |pAttribute|
// (if provided and the codec is capable providing that information).
virtual bool Input(Context* pContext,
pdfium::span<uint8_t> src_buf,
CFX_DIBAttribute* pAttribute) = 0;
};
#endif // CORE_FXCODEC_CODEC_CODEC_MODULE_IFACE_H_
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