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// Copyright 2016 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_CCODEC_GIFMODULE_H_
#define CORE_FXCODEC_CODEC_CCODEC_GIFMODULE_H_
#include <memory>
#include "core/fxcodec/lgif/fx_gif.h"
#include "core/fxcrt/cfx_unowned_ptr.h"
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/fx_system.h"
class CFX_DIBAttribute;
class CCodec_GifModule {
public:
class Delegate {
public:
virtual void GifRecordCurrentPosition(uint32_t& cur_pos) = 0;
virtual bool GifInputRecordPositionBuf(uint32_t rcd_pos,
const FX_RECT& img_rc,
int32_t pal_num,
void* pal_ptr,
int32_t delay_time,
bool user_input,
int32_t trans_index,
int32_t disposal_method,
bool interlace) = 0;
virtual void GifReadScanline(int32_t row_num, uint8_t* row_buf) = 0;
};
CCodec_GifModule();
~CCodec_GifModule();
std::unique_ptr<CGifContext> Start();
uint32_t GetAvailInput(CGifContext* context,
uint8_t** avail_buf_ptr = nullptr);
void Input(CGifContext* context, const uint8_t* src_buf, uint32_t src_size);
GifDecodeStatus ReadHeader(CGifContext* context,
int* width,
int* height,
int* pal_num,
void** pal_pp,
int* bg_index,
CFX_DIBAttribute* pAttribute);
GifDecodeStatus LoadFrameInfo(CGifContext* context, int* frame_num);
GifDecodeStatus LoadFrame(CGifContext* context,
int frame_num,
CFX_DIBAttribute* pAttribute);
Delegate* GetDelegate() const { return m_pDelegate.Get(); }
void SetDelegate(Delegate* pDelegate) { m_pDelegate = pDelegate; }
protected:
CFX_UnownedPtr<Delegate> m_pDelegate;
char m_szLastError[256];
};
#endif // CORE_FXCODEC_CODEC_CCODEC_GIFMODULE_H_
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