diff options
Diffstat (limited to 'smelt/sdl/CxImage/ximagif.h')
| -rw-r--r-- | smelt/sdl/CxImage/ximagif.h | 244 |
1 files changed, 0 insertions, 244 deletions
diff --git a/smelt/sdl/CxImage/ximagif.h b/smelt/sdl/CxImage/ximagif.h deleted file mode 100644 index 4eec35e..0000000 --- a/smelt/sdl/CxImage/ximagif.h +++ /dev/null @@ -1,244 +0,0 @@ -/*
- * File: ximagif.h
- * Purpose: GIF Image Class Loader and Writer
- */
-/* ==========================================================
- * CxImageGIF (c) 07/Aug/2001 Davide Pizzolato - www.xdp.it
- * For conditions of distribution and use, see copyright notice in ximage.h
- *
- * Special thanks to Troels Knakkergaard for new features, enhancements and bugfixes
- *
- * original CImageGIF and CImageIterator implementation are:
- * Copyright: (c) 1995, Alejandro Aguilar Sierra <asierra(at)servidor(dot)unam(dot)mx>
- *
- * 6/15/97 Randy Spann: Added GIF87a writing support
- * R.Spann@ConnRiver.net
- *
- * DECODE.C - An LZW decoder for GIF
- * Copyright (C) 1987, by Steven A. Bennett
- * Copyright (C) 1994, C++ version by Alejandro Aguilar Sierra
- *
- * In accordance with the above, I want to credit Steve Wilhite who wrote
- * the code which this is heavily inspired by...
- *
- * GIF and 'Graphics Interchange Format' are trademarks (tm) of
- * Compuserve, Incorporated, an H&R Block Company.
- *
- * Release Notes: This file contains a decoder routine for GIF images
- * which is similar, structurally, to the original routine by Steve Wilhite.
- * It is, however, somewhat noticably faster in most cases.
- *
- * ==========================================================
- */
-
-#if !defined(__ximaGIF_h)
-#define __ximaGIF_h
-
-#include "ximage.h"
-
-#if CXIMAGE_SUPPORT_GIF
-
-typedef int16_t code_int;
-
-/* Various error codes used by decoder */
-#define OUT_OF_MEMORY -10
-#define BAD_CODE_SIZE -20
-#define READ_ERROR -1
-#define WRITE_ERROR -2
-#define OPEN_ERROR -3
-#define CREATE_ERROR -4
-#define BAD_LINE_WIDTH -5
-#define MAX_CODES 4095
-#define GIFBUFTAM 16383
-#define TRANSPARENCY_CODE 0xF9
-
-//LZW GIF Image compression
-#define MAXBITSCODES 12
-#define HSIZE 5003 /* 80% occupancy */
-#define MAXCODE(n_bits) (((code_int) 1 << (n_bits)) - 1)
-#define HashTabOf(i) htab[i]
-#define CodeTabOf(i) codetab[i]
-
-
-class CImageIterator;
-class DLL_EXP CxImageGIF: public CxImage
-{
-#pragma pack(1)
-
-typedef struct tag_gifgce{
- uint8_t flags; /*res:3|dispmeth:3|userinputflag:1|transpcolflag:1*/
- uint16_t delaytime;
- uint8_t transpcolindex;
-} struct_gifgce;
-
-typedef struct tag_dscgif{ /* Logic Screen Descriptor */
- char header[6]; /* Firma and version */
- uint16_t scrwidth;
- uint16_t scrheight;
- char pflds;
- char bcindx;
- char pxasrat;
-} struct_dscgif;
-
-typedef struct tag_image{ /* Image Descriptor */
- uint16_t l;
- uint16_t t;
- uint16_t w;
- uint16_t h;
- uint8_t pf;
-} struct_image;
-
-typedef struct tag_TabCol{ /* Tabla de colores */
- int16_t colres; /* color resolution */
- int16_t sogct; /* size of global color table */
- rgb_color paleta[256]; /* paleta */
-} struct_TabCol;
-
-typedef struct tag_RLE{
- int32_t rl_pixel;
- int32_t rl_basecode;
- int32_t rl_count;
- int32_t rl_table_pixel;
- int32_t rl_table_max;
- int32_t just_cleared;
- int32_t out_bits;
- int32_t out_bits_init;
- int32_t out_count;
- int32_t out_bump;
- int32_t out_bump_init;
- int32_t out_clear;
- int32_t out_clear_init;
- int32_t max_ocodes;
- int32_t code_clear;
- int32_t code_eof;
- uint32_t obuf;
- int32_t obits;
- uint8_t oblock[256];
- int32_t oblen;
-} struct_RLE;
-#pragma pack()
-
-public:
- CxImageGIF();
- ~CxImageGIF();
-
-// bool Load(const TCHAR * imageFileName){ return CxImage::Load(imageFileName,CXIMAGE_FORMAT_GIF);}
-// bool Save(const TCHAR * imageFileName){ return CxImage::Save(imageFileName,CXIMAGE_FORMAT_GIF);}
-
- bool Decode(CxFile * fp);
- bool Decode(FILE *fp) { CxIOFile file(fp); return Decode(&file); }
-
-#if CXIMAGE_SUPPORT_ENCODE
- bool Encode(CxFile * fp);
- bool Encode(CxFile * fp, CxImage ** pImages, int32_t pagecount, bool bLocalColorMap = false, bool bLocalDispMeth = false);
- bool Encode(FILE *fp) { CxIOFile file(fp); return Encode(&file); }
- bool Encode(FILE *fp, CxImage ** pImages, int32_t pagecount, bool bLocalColorMap = false)
- { CxIOFile file(fp); return Encode(&file, pImages, pagecount, bLocalColorMap); }
-#endif // CXIMAGE_SUPPORT_ENCODE
-
- void SetLoops(int32_t loops);
- int32_t GetLoops();
- void SetComment(const char* sz_comment_in);
- void GetComment(char* sz_comment_out);
-
-protected:
- bool DecodeExtension(CxFile *fp);
- void EncodeHeader(CxFile *fp);
- void EncodeLoopExtension(CxFile *fp);
- void EncodeExtension(CxFile *fp);
- void EncodeBody(CxFile *fp, bool bLocalColorMap = false);
- void EncodeComment(CxFile *fp);
- bool EncodeRGB(CxFile *fp);
- void GifMix(CxImage & imgsrc2, struct_image & imgdesc);
-
- struct_gifgce gifgce;
-
- int32_t curx, cury;
- int32_t CountDown;
- uint32_t cur_accum;
- int32_t cur_bits;
- int32_t interlaced, iypos, istep, iheight, ipass;
- int32_t ibf;
- int32_t ibfmax;
- uint8_t * buf;
-// Implementation
- int32_t GifNextPixel ();
- void Putword (int32_t w, CxFile* fp );
- void compressNONE (int32_t init_bits, CxFile* outfile);
- void compressLZW (int32_t init_bits, CxFile* outfile);
- void output (code_int code );
- void cl_hash (int32_t hsize);
- void char_out (int32_t c);
- void flush_char ();
- int16_t init_exp(int16_t size);
- int16_t get_next_code(CxFile*);
- int16_t decoder(CxFile*, CImageIterator* iter, int16_t linewidth, int32_t &bad_code_count);
- int32_t get_byte(CxFile*);
- int32_t out_line(CImageIterator* iter, uint8_t *pixels, int32_t linelen);
- int32_t get_num_frames(CxFile *f,struct_TabCol* TabColSrc,struct_dscgif* dscgif);
- int32_t seek_next_image(CxFile* fp, int32_t position);
-
- int16_t curr_size; /* The current code size */
- int16_t clear; /* Value for a clear code */
- int16_t ending; /* Value for a ending code */
- int16_t newcodes; /* First available code */
- int16_t top_slot; /* Highest code for current size */
- int16_t slot; /* Last read code */
-
- /* The following static variables are used
- * for seperating out codes */
- int16_t navail_bytes; /* # bytes left in block */
- int16_t nbits_left; /* # bits left in current uint8_t */
- uint8_t b1; /* Current uint8_t */
- uint8_t * byte_buff; /* Current block */
- uint8_t *pbytes; /* Pointer to next uint8_t in block */
- /* The reason we have these seperated like this instead of using
- * a structure like the original Wilhite code did, is because this
- * stuff generally produces significantly faster code when compiled...
- * This code is full of similar speedups... (For a good book on writing
- * C for speed or for space optomisation, see Efficient C by Tom Plum,
- * published by Plum-Hall Associates...)
- */
- uint8_t * stack; /* Stack for storing pixels */
- uint8_t * suffix; /* Suffix table */
- uint16_t * prefix; /* Prefix linked list */
-
-//LZW GIF Image compression routines
- int32_t * htab;
- uint16_t * codetab;
- int32_t n_bits; /* number of bits/code */
- code_int maxcode; /* maximum code, given n_bits */
- code_int free_ent; /* first unused entry */
- int32_t clear_flg;
- int32_t g_init_bits;
- CxFile* g_outfile;
- int32_t ClearCode;
- int32_t EOFCode;
-
- int32_t a_count;
- char * accum;
-
- char * m_comment;
- int32_t m_loops;
-
-//RLE compression routines
- void compressRLE( int32_t init_bits, CxFile* outfile);
- void rle_clear(struct_RLE* rle);
- void rle_flush(struct_RLE* rle);
- void rle_flush_withtable(int32_t count, struct_RLE* rle);
- void rle_flush_clearorrep(int32_t count, struct_RLE* rle);
- void rle_flush_fromclear(int32_t count,struct_RLE* rle);
- void rle_output_plain(int32_t c,struct_RLE* rle);
- void rle_reset_out_clear(struct_RLE* rle);
- uint32_t rle_compute_triangle_count(uint32_t count, uint32_t nrepcodes);
- uint32_t rle_isqrt(uint32_t x);
- void rle_write_block(struct_RLE* rle);
- void rle_block_out(uint8_t c, struct_RLE* rle);
- void rle_block_flush(struct_RLE* rle);
- void rle_output(int32_t val, struct_RLE* rle);
- void rle_output_flush(struct_RLE* rle);
-};
-
-#endif
-
-#endif
|