| // 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 <utility> |
| |
| #include "core/fxcodec/codec/codec_module_iface.h" |
| #include "core/fxcodec/gif/cfx_gif.h" |
| #include "core/fxcrt/fx_coordinates.h" |
| #include "core/fxcrt/fx_system.h" |
| #include "third_party/base/span.h" |
| |
| class CFX_DIBAttribute; |
| |
| class CCodec_GifModule final : public CodecModuleIface { |
| 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, |
| CFX_GifPalette* 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() override; |
| |
| // CodecModuleIface: |
| FX_FILESIZE GetAvailInput(Context* context) const override; |
| bool Input(Context* context, |
| pdfium::span<uint8_t> src_buf, |
| CFX_DIBAttribute* pAttribute) override; |
| |
| std::unique_ptr<Context> Start(Delegate* pDelegate); |
| CFX_GifDecodeStatus ReadHeader(Context* context, |
| int* width, |
| int* height, |
| int* pal_num, |
| CFX_GifPalette** pal_pp, |
| int* bg_index, |
| CFX_DIBAttribute* pAttribute); |
| std::pair<CFX_GifDecodeStatus, size_t> LoadFrameInfo(Context* context); |
| CFX_GifDecodeStatus LoadFrame(Context* context, |
| size_t frame_num, |
| CFX_DIBAttribute* pAttribute); |
| }; |
| |
| #endif // CORE_FXCODEC_CODEC_CCODEC_GIFMODULE_H_ |