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Side by Side Diff: core/fxcodec/lgif/fx_gif.h

Issue 1821043003: Remove FX_WORD in favor of uint16_t. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Use stdint.h directly, bitfield minefield. Created 4 years, 9 months ago
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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 CORE_FXCODEC_LGIF_FX_GIF_H_ 7 #ifndef CORE_FXCODEC_LGIF_FX_GIF_H_
8 #define CORE_FXCODEC_LGIF_FX_GIF_H_ 8 #define CORE_FXCODEC_LGIF_FX_GIF_H_
9 9
10 #include <setjmp.h> 10 #include <setjmp.h>
(...skipping 34 matching lines...) Expand 10 before | Expand all | Expand 10 after
45 uint8_t reserved : 2; 45 uint8_t reserved : 2;
46 uint8_t sort_flag : 1; 46 uint8_t sort_flag : 1;
47 uint8_t interlace : 1; 47 uint8_t interlace : 1;
48 uint8_t local_pal : 1; 48 uint8_t local_pal : 1;
49 } GifLF; 49 } GifLF;
50 typedef struct tagGifHeader { 50 typedef struct tagGifHeader {
51 char signature[3]; 51 char signature[3];
52 char version[3]; 52 char version[3];
53 } GifHeader; 53 } GifHeader;
54 typedef struct tagGifLSD { 54 typedef struct tagGifLSD {
55 FX_WORD width; 55 uint16_t width;
56 FX_WORD height; 56 uint16_t height;
57 uint8_t global_flag; 57 uint8_t global_flag;
58 uint8_t bc_index; 58 uint8_t bc_index;
59 uint8_t pixel_aspect; 59 uint8_t pixel_aspect;
60 } GifLSD; 60 } GifLSD;
61 typedef struct tagGifImageInfo { 61 typedef struct tagGifImageInfo {
62 FX_WORD left; 62 uint16_t left;
63 FX_WORD top; 63 uint16_t top;
64 FX_WORD width; 64 uint16_t width;
65 FX_WORD height; 65 uint16_t height;
66 66
67 uint8_t local_flag; 67 uint8_t local_flag;
68 } GifImageInfo; 68 } GifImageInfo;
69 typedef struct tagGifCEF { 69 typedef struct tagGifCEF {
70 uint8_t transparency : 1; 70 uint8_t transparency : 1;
71 uint8_t user_input : 1; 71 uint8_t user_input : 1;
72 uint8_t disposal_method : 3; 72 uint8_t disposal_method : 3;
73 uint8_t reserved : 3; 73 uint8_t reserved : 3;
74 } GifCEF; 74 } GifCEF;
75 typedef struct tagGifGCE { 75 typedef struct tagGifGCE {
76 uint8_t block_size; 76 uint8_t block_size;
77 uint8_t gce_flag; 77 uint8_t gce_flag;
78 FX_WORD delay_time; 78 uint16_t delay_time;
79 uint8_t trans_index; 79 uint8_t trans_index;
80 } GifGCE; 80 } GifGCE;
81 typedef struct tagGifPTE { 81 typedef struct tagGifPTE {
82 uint8_t block_size; 82 uint8_t block_size;
83 FX_WORD grid_left; 83 uint16_t grid_left;
84 FX_WORD grid_top; 84 uint16_t grid_top;
85 FX_WORD grid_width; 85 uint16_t grid_width;
86 FX_WORD grid_height; 86 uint16_t grid_height;
87 87
88 uint8_t char_width; 88 uint8_t char_width;
89 uint8_t char_height; 89 uint8_t char_height;
90 90
91 uint8_t fc_index; 91 uint8_t fc_index;
92 uint8_t bc_index; 92 uint8_t bc_index;
93 } GifPTE; 93 } GifPTE;
94 typedef struct tagGifAE { 94 typedef struct tagGifAE {
95 uint8_t block_size; 95 uint8_t block_size;
96 uint8_t app_identify[8]; 96 uint8_t app_identify[8];
(...skipping 11 matching lines...) Expand all
108 int32_t image_row_num; 108 int32_t image_row_num;
109 } GifImage; 109 } GifImage;
110 typedef struct tagGifPlainText { 110 typedef struct tagGifPlainText {
111 GifGCE* gce_ptr; 111 GifGCE* gce_ptr;
112 GifPTE* pte_ptr; 112 GifPTE* pte_ptr;
113 CFX_ByteString* string_ptr; 113 CFX_ByteString* string_ptr;
114 } GifPlainText; 114 } GifPlainText;
115 class CGifLZWDecoder { 115 class CGifLZWDecoder {
116 public: 116 public:
117 struct tag_Table { 117 struct tag_Table {
118 FX_WORD prefix; 118 uint16_t prefix;
119 uint8_t suffix; 119 uint8_t suffix;
120 }; 120 };
121 CGifLZWDecoder(FX_CHAR* error_ptr = NULL) { err_msg_ptr = error_ptr; } 121 CGifLZWDecoder(FX_CHAR* error_ptr = NULL) { err_msg_ptr = error_ptr; }
122 void InitTable(uint8_t code_len); 122 void InitTable(uint8_t code_len);
123 123
124 int32_t Decode(uint8_t* des_buf, FX_DWORD& des_size); 124 int32_t Decode(uint8_t* des_buf, FX_DWORD& des_size);
125 125
126 void Input(uint8_t* src_buf, FX_DWORD src_size); 126 void Input(uint8_t* src_buf, FX_DWORD src_size);
127 FX_DWORD GetAvailInput(); 127 FX_DWORD GetAvailInput();
128 128
129 private: 129 private:
130 void ClearTable(); 130 void ClearTable();
131 void AddCode(FX_WORD prefix_code, uint8_t append_char); 131 void AddCode(uint16_t prefix_code, uint8_t append_char);
132 void DecodeString(FX_WORD code); 132 void DecodeString(uint16_t code);
133 uint8_t code_size; 133 uint8_t code_size;
134 uint8_t code_size_cur; 134 uint8_t code_size_cur;
135 FX_WORD code_clear; 135 uint16_t code_clear;
136 FX_WORD code_end; 136 uint16_t code_end;
137 FX_WORD code_next; 137 uint16_t code_next;
138 uint8_t code_first; 138 uint8_t code_first;
139 uint8_t stack[GIF_MAX_LZW_CODE]; 139 uint8_t stack[GIF_MAX_LZW_CODE];
140 FX_WORD stack_size; 140 uint16_t stack_size;
141 tag_Table code_table[GIF_MAX_LZW_CODE]; 141 tag_Table code_table[GIF_MAX_LZW_CODE];
142 FX_WORD code_old; 142 uint16_t code_old;
143 143
144 uint8_t* next_in; 144 uint8_t* next_in;
145 FX_DWORD avail_in; 145 FX_DWORD avail_in;
146 146
147 uint8_t bits_left; 147 uint8_t bits_left;
148 FX_DWORD code_store; 148 FX_DWORD code_store;
149 149
150 FX_CHAR* err_msg_ptr; 150 FX_CHAR* err_msg_ptr;
151 }; 151 };
152 class CGifLZWEncoder { 152 class CGifLZWEncoder {
153 public: 153 public:
154 struct tag_Table { 154 struct tag_Table {
155 FX_WORD prefix; 155 uint16_t prefix;
156 uint8_t suffix; 156 uint8_t suffix;
157 }; 157 };
158 CGifLZWEncoder(); 158 CGifLZWEncoder();
159 ~CGifLZWEncoder(); 159 ~CGifLZWEncoder();
160 void Start(uint8_t code_len, 160 void Start(uint8_t code_len,
161 const uint8_t* src_buf, 161 const uint8_t* src_buf,
162 uint8_t*& dst_buf, 162 uint8_t*& dst_buf,
163 FX_DWORD& offset); 163 FX_DWORD& offset);
164 FX_BOOL Encode(const uint8_t* src_buf, 164 FX_BOOL Encode(const uint8_t* src_buf,
165 FX_DWORD src_len, 165 FX_DWORD src_len,
(...skipping 11 matching lines...) Expand all
177 uint8_t*& dst_buf, 177 uint8_t*& dst_buf,
178 FX_DWORD& dst_len, 178 FX_DWORD& dst_len,
179 FX_DWORD& offset); 179 FX_DWORD& offset);
180 void WriteBlock(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset); 180 void WriteBlock(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset);
181 jmp_buf jmp; 181 jmp_buf jmp;
182 FX_DWORD src_offset; 182 FX_DWORD src_offset;
183 uint8_t src_bit_offset; 183 uint8_t src_bit_offset;
184 uint8_t src_bit_cut; 184 uint8_t src_bit_cut;
185 FX_DWORD src_bit_num; 185 FX_DWORD src_bit_num;
186 uint8_t code_size; 186 uint8_t code_size;
187 FX_WORD code_clear; 187 uint16_t code_clear;
188 FX_WORD code_end; 188 uint16_t code_end;
189 FX_WORD index_num; 189 uint16_t index_num;
190 uint8_t bit_offset; 190 uint8_t bit_offset;
191 uint8_t index_bit_cur; 191 uint8_t index_bit_cur;
192 uint8_t index_buf[GIF_DATA_BLOCK]; 192 uint8_t index_buf[GIF_DATA_BLOCK];
193 uint8_t index_buf_len; 193 uint8_t index_buf_len;
194 tag_Table code_table[GIF_MAX_LZW_CODE]; 194 tag_Table code_table[GIF_MAX_LZW_CODE];
195 FX_WORD table_cur; 195 uint16_t table_cur;
196 }; 196 };
197 typedef struct tag_gif_decompress_struct gif_decompress_struct; 197 typedef struct tag_gif_decompress_struct gif_decompress_struct;
198 typedef gif_decompress_struct* gif_decompress_struct_p; 198 typedef gif_decompress_struct* gif_decompress_struct_p;
199 typedef gif_decompress_struct_p* gif_decompress_struct_pp; 199 typedef gif_decompress_struct_p* gif_decompress_struct_pp;
200 static const int32_t s_gif_interlace_step[4] = {8, 8, 4, 2}; 200 static const int32_t s_gif_interlace_step[4] = {8, 8, 4, 2};
201 struct tag_gif_decompress_struct { 201 struct tag_gif_decompress_struct {
202 jmp_buf jmpbuf; 202 jmp_buf jmpbuf;
203 FX_CHAR* err_ptr; 203 FX_CHAR* err_ptr;
204 void (*gif_error_fn)(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg); 204 void (*gif_error_fn)(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg);
205 void* context_ptr; 205 void* context_ptr;
(...skipping 38 matching lines...) Expand 10 before | Expand all | Expand 10 after
244 struct tag_gif_compress_struct { 244 struct tag_gif_compress_struct {
245 const uint8_t* src_buf; 245 const uint8_t* src_buf;
246 FX_DWORD src_pitch; 246 FX_DWORD src_pitch;
247 FX_DWORD src_width; 247 FX_DWORD src_width;
248 FX_DWORD src_row; 248 FX_DWORD src_row;
249 FX_DWORD cur_offset; 249 FX_DWORD cur_offset;
250 FX_DWORD frames; 250 FX_DWORD frames;
251 GifHeader* header_ptr; 251 GifHeader* header_ptr;
252 GifLSD* lsd_ptr; 252 GifLSD* lsd_ptr;
253 GifPalette* global_pal; 253 GifPalette* global_pal;
254 FX_WORD gpal_num; 254 uint16_t gpal_num;
255 GifPalette* local_pal; 255 GifPalette* local_pal;
256 FX_WORD lpal_num; 256 uint16_t lpal_num;
257 GifImageInfo* image_info_ptr; 257 GifImageInfo* image_info_ptr;
258 CGifLZWEncoder* img_encoder_ptr; 258 CGifLZWEncoder* img_encoder_ptr;
259 259
260 uint8_t* cmt_data_ptr; 260 uint8_t* cmt_data_ptr;
261 FX_DWORD cmt_data_len; 261 FX_DWORD cmt_data_len;
262 GifGCE* gce_ptr; 262 GifGCE* gce_ptr;
263 GifPTE* pte_ptr; 263 GifPTE* pte_ptr;
264 const uint8_t* pte_data_ptr; 264 const uint8_t* pte_data_ptr;
265 FX_DWORD pte_data_len; 265 FX_DWORD pte_data_len;
266 }; 266 };
(...skipping 20 matching lines...) Expand all
287 uint8_t* src_buf, 287 uint8_t* src_buf,
288 FX_DWORD src_size); 288 FX_DWORD src_size);
289 FX_DWORD gif_get_avail_input(gif_decompress_struct_p gif_ptr, 289 FX_DWORD gif_get_avail_input(gif_decompress_struct_p gif_ptr,
290 uint8_t** avial_buf_ptr); 290 uint8_t** avial_buf_ptr);
291 void interlace_buf(const uint8_t* buf, FX_DWORD width, FX_DWORD height); 291 void interlace_buf(const uint8_t* buf, FX_DWORD width, FX_DWORD height);
292 FX_BOOL gif_encode(gif_compress_struct_p gif_ptr, 292 FX_BOOL gif_encode(gif_compress_struct_p gif_ptr,
293 uint8_t*& dst_buf, 293 uint8_t*& dst_buf,
294 FX_DWORD& dst_len); 294 FX_DWORD& dst_len);
295 295
296 #endif // CORE_FXCODEC_LGIF_FX_GIF_H_ 296 #endif // CORE_FXCODEC_LGIF_FX_GIF_H_
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