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1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 | 6 |
7 #ifndef _FX_BASIC_H_ | 7 #ifndef _FX_BASIC_H_ |
8 #include "../../../include/fxcrt/fx_basic.h" | 8 #include "../../../include/fxcrt/fx_basic.h" |
9 #endif | 9 #endif |
10 extern FX_WORD _GetWord_LSBFirst(FX_LPBYTE p); | 10 extern FX_WORD _GetWord_LSBFirst(FX_LPBYTE p); |
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110 FX_BYTE image_code_size; | 110 FX_BYTE image_code_size; |
111 FX_DWORD image_data_pos; | 111 FX_DWORD image_data_pos; |
112 FX_LPBYTE image_row_buf; | 112 FX_LPBYTE image_row_buf; |
113 FX_INT32 image_row_num; | 113 FX_INT32 image_row_num; |
114 } GifImage; | 114 } GifImage; |
115 typedef struct tagGifPlainText { | 115 typedef struct tagGifPlainText { |
116 GifGCE* gce_ptr; | 116 GifGCE* gce_ptr; |
117 GifPTE* pte_ptr; | 117 GifPTE* pte_ptr; |
118 CFX_ByteString* string_ptr; | 118 CFX_ByteString* string_ptr; |
119 } GifPlainText; | 119 } GifPlainText; |
120 class CGifLZWDecoder : public CFX_Object | 120 class CGifLZWDecoder |
121 { | 121 { |
122 public: | 122 public: |
123 struct tag_Table { | 123 struct tag_Table { |
124 FX_WORD prefix; | 124 FX_WORD prefix; |
125 FX_BYTE suffix; | 125 FX_BYTE suffix; |
126 }; | 126 }; |
127 CGifLZWDecoder(FX_LPSTR error_ptr = NULL) | 127 CGifLZWDecoder(FX_LPSTR error_ptr = NULL) |
128 { | 128 { |
129 err_msg_ptr = error_ptr; | 129 err_msg_ptr = error_ptr; |
130 } | 130 } |
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151 FX_WORD code_old; | 151 FX_WORD code_old; |
152 | 152 |
153 FX_LPBYTE next_in; | 153 FX_LPBYTE next_in; |
154 FX_DWORD avail_in; | 154 FX_DWORD avail_in; |
155 | 155 |
156 FX_BYTE bits_left; | 156 FX_BYTE bits_left; |
157 FX_DWORD code_store; | 157 FX_DWORD code_store; |
158 | 158 |
159 FX_LPSTR err_msg_ptr; | 159 FX_LPSTR err_msg_ptr; |
160 }; | 160 }; |
161 class CGifLZWEncoder : public CFX_Object | 161 class CGifLZWEncoder |
162 { | 162 { |
163 public: | 163 public: |
164 struct tag_Table { | 164 struct tag_Table { |
165 FX_WORD prefix; | 165 FX_WORD prefix; |
166 FX_BYTE suffix; | 166 FX_BYTE suffix; |
167 }; | 167 }; |
168 CGifLZWEncoder(); | 168 CGifLZWEncoder(); |
169 ~CGifLZWEncoder(); | 169 ~CGifLZWEncoder(); |
170 void Start(FX_BYTE code_len, FX_LPCBYTE src_buf, FX_LPBYTE& d
st_buf, FX_DWORD& offset); | 170 void Start(FX_BYTE code_len, FX_LPCBYTE src_buf, FX_LPBYTE& d
st_buf, FX_DWORD& offset); |
171 FX_BOOL Encode(FX_LPCBYTE src_buf, FX_DWORD src_len, FX_LPBYTE&
dst_buf, FX_DWORD& dst_len, FX_DWORD& offset); | 171 FX_BOOL Encode(FX_LPCBYTE src_buf, FX_DWORD src_len, FX_LPBYTE&
dst_buf, FX_DWORD& dst_len, FX_DWORD& offset); |
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298 FX_LPBYTE _gif_read_data(gif_decompress_struct_p gif_ptr, FX_LPBYTE* des_buf_pp,
FX_DWORD data_size); | 298 FX_LPBYTE _gif_read_data(gif_decompress_struct_p gif_ptr, FX_LPBYTE* des_buf_pp,
FX_DWORD data_size); |
299 void _gif_save_decoding_status(gif_decompress_struct_p gif_ptr, FX_INT32 status)
; | 299 void _gif_save_decoding_status(gif_decompress_struct_p gif_ptr, FX_INT32 status)
; |
300 void _gif_input_buffer(gif_decompress_struct_p gif_ptr, FX_LPBYTE src_buf, FX_DW
ORD src_size); | 300 void _gif_input_buffer(gif_decompress_struct_p gif_ptr, FX_LPBYTE src_buf, FX_DW
ORD src_size); |
301 FX_DWORD _gif_get_avail_input(gif_decompress_struct_p gif_ptr, FX_LPBYTE* avial_
buf_ptr); | 301 FX_DWORD _gif_get_avail_input(gif_decompress_struct_p gif_ptr, FX_LPBYTE* avial_
buf_ptr); |
302 void interlace_buf(FX_LPCBYTE buf, FX_DWORD width, FX_DWORD height); | 302 void interlace_buf(FX_LPCBYTE buf, FX_DWORD width, FX_DWORD height); |
303 FX_BOOL _gif_encode( gif_compress_struct_p gif_ptr, FX_LPBYTE& dst_buf, FX_DWORD
& dst_len ); | 303 FX_BOOL _gif_encode( gif_compress_struct_p gif_ptr, FX_LPBYTE& dst_buf, FX_DWORD
& dst_len ); |
304 #define GIF_PTR_NOT_NULL(ptr,gif_ptr) if(ptr == NULL){
\ | 304 #define GIF_PTR_NOT_NULL(ptr,gif_ptr) if(ptr == NULL){
\ |
305 _gif_error(gif_ptr,"Out Of Memory");\ | 305 _gif_error(gif_ptr,"Out Of Memory");\ |
306 return 0; \ | 306 return 0; \ |
307 } | 307 } |
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