Subversion Repositories SvarDOS

/*

 * PCX-loading routines

 *

 * This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io

 * Published under the terms of the MIT License, as stated below.

 *

 * Copyright (C) 2022 Mateusz Viste

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to

 * deal in the Software without restriction, including without limitation the

 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or

 * sell copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS

 * IN THE SOFTWARE.

 */

#ifndef MDR_PCX_H

#define MDR_PCX_H

struct pcx_hdr {

  unsigned char rle;

  unsigned char bpp;

  unsigned short max_x;

  unsigned short max_y;

  unsigned short bytes_per_scanline;

  struct {

    unsigned char r;

    unsigned char g;

    unsigned char b;

  } pal[256];

};

int pcx_anal(struct pcx_hdr *h, FILE *fd, unsigned long offset, unsigned short len);

int pcx_load(void *ptr, size_t ptrsz, const struct pcx_hdr *h, FILE *fd, unsigned long offset);

/* convert img to 8bpp if needed (ie unpack 2 and 4bpp data to 8bpp) */

int pcx_convto8bpp(void *img, const struct pcx_hdr *h);

#endif