diff options
Diffstat (limited to 'core/src/fxcodec/lgif/fx_gif.h')
-rw-r--r-- | core/src/fxcodec/lgif/fx_gif.h | 296 |
1 files changed, 0 insertions, 296 deletions
diff --git a/core/src/fxcodec/lgif/fx_gif.h b/core/src/fxcodec/lgif/fx_gif.h deleted file mode 100644 index 32300a50e5..0000000000 --- a/core/src/fxcodec/lgif/fx_gif.h +++ /dev/null @@ -1,296 +0,0 @@ -// Copyright 2014 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_SRC_FXCODEC_LGIF_FX_GIF_H_ -#define CORE_SRC_FXCODEC_LGIF_FX_GIF_H_ - -#include <setjmp.h> - -#include "core/include/fxcrt/fx_basic.h" - -#define GIF_SIGNATURE "GIF" -#define GIF_SIG_EXTENSION 0x21 -#define GIF_SIG_IMAGE 0x2C -#define GIF_SIG_TRAILER 0x3B -#define GIF_BLOCK_GCE 0xF9 -#define GIF_BLOCK_PTE 0x01 -#define GIF_BLOCK_CE 0xFE -#define GIF_BLOCK_AE 0xFF -#define GIF_BLOCK_TERMINAL 0x00 -#define GIF_MAX_LZW_CODE 4096 -#define GIF_DATA_BLOCK 255 -#define GIF_MAX_ERROR_SIZE 256 -#define GIF_D_STATUS_SIG 0x01 -#define GIF_D_STATUS_TAIL 0x02 -#define GIF_D_STATUS_EXT 0x03 -#define GIF_D_STATUS_EXT_AE 0x04 -#define GIF_D_STATUS_EXT_CE 0x05 -#define GIF_D_STATUS_EXT_GCE 0x06 -#define GIF_D_STATUS_EXT_PTE 0x07 -#define GIF_D_STATUS_EXT_UNE 0x08 -#define GIF_D_STATUS_IMG_INFO 0x09 -#define GIF_D_STATUS_IMG_DATA 0x0A -#pragma pack(1) -typedef struct tagGifGF { - uint8_t pal_bits : 3; - uint8_t sort_flag : 1; - uint8_t color_resolution : 3; - uint8_t global_pal : 1; -} GifGF; -typedef struct tagGifLF { - uint8_t pal_bits : 3; - uint8_t reserved : 2; - uint8_t sort_flag : 1; - uint8_t interlace : 1; - uint8_t local_pal : 1; -} GifLF; -typedef struct tagGifHeader { - char signature[3]; - char version[3]; -} GifHeader; -typedef struct tagGifLSD { - FX_WORD width; - FX_WORD height; - uint8_t global_flag; - uint8_t bc_index; - uint8_t pixel_aspect; -} GifLSD; -typedef struct tagGifImageInfo { - FX_WORD left; - FX_WORD top; - FX_WORD width; - FX_WORD height; - - uint8_t local_flag; -} GifImageInfo; -typedef struct tagGifCEF { - uint8_t transparency : 1; - uint8_t user_input : 1; - uint8_t disposal_method : 3; - uint8_t reserved : 3; -} GifCEF; -typedef struct tagGifGCE { - uint8_t block_size; - uint8_t gce_flag; - FX_WORD delay_time; - uint8_t trans_index; -} GifGCE; -typedef struct tagGifPTE { - uint8_t block_size; - FX_WORD grid_left; - FX_WORD grid_top; - FX_WORD grid_width; - FX_WORD grid_height; - - uint8_t char_width; - uint8_t char_height; - - uint8_t fc_index; - uint8_t bc_index; -} GifPTE; -typedef struct tagGifAE { - uint8_t block_size; - uint8_t app_identify[8]; - uint8_t app_authentication[3]; -} GifAE; -typedef struct tagGifPalette { uint8_t r, g, b; } GifPalette; -#pragma pack() -typedef struct tagGifImage { - GifGCE* image_gce_ptr; - GifPalette* local_pal_ptr; - GifImageInfo* image_info_ptr; - uint8_t image_code_size; - FX_DWORD image_data_pos; - uint8_t* image_row_buf; - int32_t image_row_num; -} GifImage; -typedef struct tagGifPlainText { - GifGCE* gce_ptr; - GifPTE* pte_ptr; - CFX_ByteString* string_ptr; -} GifPlainText; -class CGifLZWDecoder { - public: - struct tag_Table { - FX_WORD prefix; - uint8_t suffix; - }; - CGifLZWDecoder(FX_CHAR* error_ptr = NULL) { err_msg_ptr = error_ptr; } - void InitTable(uint8_t code_len); - - int32_t Decode(uint8_t* des_buf, FX_DWORD& des_size); - - void Input(uint8_t* src_buf, FX_DWORD src_size); - FX_DWORD GetAvailInput(); - - private: - void ClearTable(); - void AddCode(FX_WORD prefix_code, uint8_t append_char); - void DecodeString(FX_WORD code); - uint8_t code_size; - uint8_t code_size_cur; - FX_WORD code_clear; - FX_WORD code_end; - FX_WORD code_next; - uint8_t code_first; - uint8_t stack[GIF_MAX_LZW_CODE]; - FX_WORD stack_size; - tag_Table code_table[GIF_MAX_LZW_CODE]; - FX_WORD code_old; - - uint8_t* next_in; - FX_DWORD avail_in; - - uint8_t bits_left; - FX_DWORD code_store; - - FX_CHAR* err_msg_ptr; -}; -class CGifLZWEncoder { - public: - struct tag_Table { - FX_WORD prefix; - uint8_t suffix; - }; - CGifLZWEncoder(); - ~CGifLZWEncoder(); - void Start(uint8_t code_len, - const uint8_t* src_buf, - uint8_t*& dst_buf, - FX_DWORD& offset); - FX_BOOL Encode(const uint8_t* src_buf, - FX_DWORD src_len, - uint8_t*& dst_buf, - FX_DWORD& dst_len, - FX_DWORD& offset); - void Finish(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset); - - private: - void ClearTable(); - FX_BOOL LookUpInTable(const uint8_t* buf, - FX_DWORD& offset, - uint8_t& bit_offset); - void EncodeString(FX_DWORD index, - uint8_t*& dst_buf, - FX_DWORD& dst_len, - FX_DWORD& offset); - void WriteBlock(uint8_t*& dst_buf, FX_DWORD& dst_len, FX_DWORD& offset); - jmp_buf jmp; - FX_DWORD src_offset; - uint8_t src_bit_offset; - uint8_t src_bit_cut; - FX_DWORD src_bit_num; - uint8_t code_size; - FX_WORD code_clear; - FX_WORD code_end; - FX_WORD index_num; - uint8_t bit_offset; - uint8_t index_bit_cur; - uint8_t index_buf[GIF_DATA_BLOCK]; - uint8_t index_buf_len; - tag_Table code_table[GIF_MAX_LZW_CODE]; - FX_WORD table_cur; -}; -typedef struct tag_gif_decompress_struct gif_decompress_struct; -typedef gif_decompress_struct* gif_decompress_struct_p; -typedef gif_decompress_struct_p* gif_decompress_struct_pp; -static const int32_t s_gif_interlace_step[4] = {8, 8, 4, 2}; -struct tag_gif_decompress_struct { - jmp_buf jmpbuf; - FX_CHAR* err_ptr; - void (*gif_error_fn)(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg); - void* context_ptr; - int width; - int height; - GifPalette* global_pal_ptr; - int32_t global_pal_num; - uint8_t global_sort_flag; - uint8_t global_color_resolution; - - uint8_t bc_index; - uint8_t pixel_aspect; - CGifLZWDecoder* img_decoder_ptr; - FX_DWORD img_row_offset; - FX_DWORD img_row_avail_size; - uint8_t img_pass_num; - CFX_ArrayTemplate<GifImage*>* img_ptr_arr_ptr; - uint8_t* (*gif_ask_buf_for_pal_fn)(gif_decompress_struct_p gif_ptr, - int32_t pal_size); - uint8_t* next_in; - FX_DWORD avail_in; - int32_t decode_status; - FX_DWORD skip_size; - void (*gif_record_current_position_fn)(gif_decompress_struct_p gif_ptr, - FX_DWORD* cur_pos_ptr); - void (*gif_get_row_fn)(gif_decompress_struct_p gif_ptr, - int32_t row_num, - uint8_t* row_buf); - FX_BOOL (*gif_get_record_position_fn)(gif_decompress_struct_p gif_ptr, - FX_DWORD cur_pos, - int32_t left, int32_t top, int32_t width, int32_t height, - int32_t pal_num, void* pal_ptr, - int32_t delay_time, FX_BOOL user_input, - int32_t trans_index, int32_t disposal_method, FX_BOOL interlace); - CFX_ByteString* cmt_data_ptr; - GifGCE* gce_ptr; - CFX_ArrayTemplate<GifPlainText*>* pt_ptr_arr_ptr; -}; -typedef struct tag_gif_compress_struct gif_compress_struct; -typedef gif_compress_struct* gif_compress_struct_p; -typedef gif_compress_struct_p* gif_compress_struct_pp; -struct tag_gif_compress_struct { - const uint8_t* src_buf; - FX_DWORD src_pitch; - FX_DWORD src_width; - FX_DWORD src_row; - FX_DWORD cur_offset; - FX_DWORD frames; - GifHeader* header_ptr; - GifLSD* lsd_ptr; - GifPalette* global_pal; - FX_WORD gpal_num; - GifPalette* local_pal; - FX_WORD lpal_num; - GifImageInfo* image_info_ptr; - CGifLZWEncoder* img_encoder_ptr; - - uint8_t* cmt_data_ptr; - FX_DWORD cmt_data_len; - GifGCE* gce_ptr; - GifPTE* pte_ptr; - const uint8_t* pte_data_ptr; - FX_DWORD pte_data_len; -}; - -void gif_error(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg); -void gif_warn(gif_decompress_struct_p gif_ptr, const FX_CHAR* err_msg); -gif_decompress_struct_p gif_create_decompress(); -void gif_destroy_decompress(gif_decompress_struct_pp gif_ptr_ptr); -gif_compress_struct_p gif_create_compress(); -void gif_destroy_compress(gif_compress_struct_pp gif_ptr_ptr); -int32_t gif_read_header(gif_decompress_struct_p gif_ptr); -int32_t gif_get_frame(gif_decompress_struct_p gif_ptr); -int32_t gif_get_frame_num(gif_decompress_struct_p gif_ptr); -int32_t gif_decode_extension(gif_decompress_struct_p gif_ptr); -int32_t gif_decode_image_info(gif_decompress_struct_p gif_ptr); -void gif_takeover_gce_ptr(gif_decompress_struct_p gif_ptr, - GifGCE** gce_ptr_ptr); -int32_t gif_load_frame(gif_decompress_struct_p gif_ptr, int32_t frame_num); -uint8_t* gif_read_data(gif_decompress_struct_p gif_ptr, - uint8_t** des_buf_pp, - FX_DWORD data_size); -void gif_save_decoding_status(gif_decompress_struct_p gif_ptr, int32_t status); -void gif_input_buffer(gif_decompress_struct_p gif_ptr, - uint8_t* src_buf, - FX_DWORD src_size); -FX_DWORD gif_get_avail_input(gif_decompress_struct_p gif_ptr, - uint8_t** avial_buf_ptr); -void interlace_buf(const uint8_t* buf, FX_DWORD width, FX_DWORD height); -FX_BOOL gif_encode(gif_compress_struct_p gif_ptr, - uint8_t*& dst_buf, - FX_DWORD& dst_len); - -#endif // CORE_SRC_FXCODEC_LGIF_FX_GIF_H_ |