iff.h

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/* Copyright (c) 1999, Not a Number / NeoGeo b.v. 
 * 
 * All rights reserved.
 * 
 * Contact:      info@blender.org   
 * Information:  http://www.blender.org
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef IFF_H
#define IFF_H

#include <sys/types.h>
#include "util.h"
#include "externdef.h"

struct ImMetaData;

#define IB_MIPMAP_LEVELS    20
#define IB_FILENAME_SIZE    1023

typedef struct ImBuf {
    struct ImBuf *next, *prev;  
    short   x, y;               
    unsigned char   depth;      
    unsigned int    *rect;      
    unsigned int    *crect;     
    int flags;              
    int mall;               
    int *zbuf;              
    float *zbuf_float;      
    void *userdata;         
    unsigned char *encodedbuffer;     
    unsigned int   encodedsize;       
    unsigned int   encodedbuffersize; 
    float *rect_float;      
    int channels;           
    float dither;           
    short profile;          
    char profile_filename[256];     
    /* mipmapping */
    struct ImBuf *mipmap[IB_MIPMAP_LEVELS]; 
    int miplevels;

    /* externally used flags */
    int index;              /* reference index for ImBuf lists */
    int userflags;          /* used to set imbuf to dirty and other stuff */
    struct ImMetaData *metadata;

    /* file information */
    int ftype;                      /* file type we are going to save as */
    char name[IB_FILENAME_SIZE];    /* filename associated with this image */

    /* memory cache limiter */
    struct MEM_CacheLimiterHandle_s *c_handle; /* handle for cache limiter */
    int refcounter; /* reference counter for multiple users */
} ImBuf;

LIBIMPORT struct ImBuf *allocImBuf(short,short,uchar,uint);
LIBIMPORT struct ImBuf *dupImBuf(struct ImBuf *);
LIBIMPORT void freeImBuf(struct ImBuf*);

LIBIMPORT short saveiff(struct ImBuf *,char *,int);

LIBIMPORT struct ImBuf *loadifffile(int,int);
LIBIMPORT struct ImBuf *loadiffname(char *,int);
LIBIMPORT struct ImBuf *testiffname(char *,int);

LIBIMPORT struct ImBuf *onehalf(struct ImBuf *);
LIBIMPORT struct ImBuf *half_x(struct ImBuf *);
LIBIMPORT struct ImBuf *half_y(struct ImBuf *);
LIBIMPORT struct ImBuf *double_x(struct ImBuf *);
LIBIMPORT struct ImBuf *double_y(struct ImBuf *);
LIBIMPORT struct ImBuf *double_fast_x(struct ImBuf *);
LIBIMPORT struct ImBuf *double_fast_y(struct ImBuf *);

LIBIMPORT int ispic(char *);

LIBIMPORT struct ImBuf *scaleImBuf(struct ImBuf *, short, short);
LIBIMPORT struct ImBuf *scalefastImBuf(struct ImBuf *, short, short);

LIBIMPORT void de_interlace(struct ImBuf *ib);
LIBIMPORT void interlace(struct ImBuf *ib);

LIBIMPORT void IMB_rectcpy(struct ImBuf *dbuf, struct ImBuf *sbuf, 
    int destx, int desty, int srcx, int srcy, int width, int height);

LIBIMPORT void IMB_rectfill(struct ImBuf *drect, const float col[4]);
LIBIMPORT void IMB_rectfill_area(struct ImBuf *ibuf, float *col, int x1, int y1, int x2, int y2);
LIBIMPORT void buf_rectfill_area(unsigned char *rect, float *rectf, int width, int height, const float col[4], int x1, int y1, int x2, int y2);
LIBIMPORT void IMB_rectfill_alpha(struct ImBuf *drect, const float value);

#endif /* IFF_H */