63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
// Copyright 2016 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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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef CORE_FXCODEC_GIF_GIFMODULE_H_
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#define CORE_FXCODEC_GIF_GIFMODULE_H_
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#include <memory>
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#include <utility>
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#include "core/fxcodec/codec_module_iface.h"
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#include "core/fxcodec/gif/cfx_gif.h"
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#include "core/fxcrt/fx_coordinates.h"
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namespace fxcodec {
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class CFX_DIBAttribute;
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class GifModule final : public ModuleIface {
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public:
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class Delegate {
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public:
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virtual void GifRecordCurrentPosition(uint32_t& cur_pos) = 0;
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virtual bool GifInputRecordPositionBuf(uint32_t rcd_pos,
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const FX_RECT& img_rc,
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int32_t pal_num,
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CFX_GifPalette* pal_ptr,
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int32_t delay_time,
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bool user_input,
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int32_t trans_index,
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int32_t disposal_method,
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bool interlace) = 0;
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virtual void GifReadScanline(int32_t row_num, uint8_t* row_buf) = 0;
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};
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GifModule();
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~GifModule() override;
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// ModuleIface:
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FX_FILESIZE GetAvailInput(Context* context) const override;
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bool Input(Context* context,
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RetainPtr<CFX_CodecMemory> codec_memory,
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CFX_DIBAttribute* pAttribute) override;
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std::unique_ptr<Context> Start(Delegate* pDelegate);
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CFX_GifDecodeStatus ReadHeader(Context* context,
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int* width,
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int* height,
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int* pal_num,
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CFX_GifPalette** pal_pp,
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int* bg_index);
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std::pair<CFX_GifDecodeStatus, size_t> LoadFrameInfo(Context* context);
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CFX_GifDecodeStatus LoadFrame(Context* context, size_t frame_num);
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};
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} // namespace fxcodec
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using GifModule = fxcodec::GifModule;
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#endif // CORE_FXCODEC_GIF_GIFMODULE_H_
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