source: abuse/trunk/src/imlib/targa.cpp @ 128

Last change on this file since 128 was 124, checked in by Sam Hocevar, 15 years ago
  • Get rid of ugly tabs and trailing spaces everywhere.
File size: 2.2 KB
RevLine 
[56]1/*
2 *  Abuse - dark 2D side-scrolling platform game
3 *  Copyright (c) 1995 Crack dot Com
4 *
5 *  This software was released into the Public Domain. As with most public
6 *  domain software, no warranty is made or implied by Crack dot Com or
7 *  Jonathan Clark.
8 */
9
10#include "config.h"
11
[2]12#include "image.hpp"
13#include "specs.hpp"
14
15image *load_targa(char *filename, palette *pal)
16{
17  bFILE *fp=open_file(filename,"rb");
18  if (!fp)
19    return 0;
20
21  if (fp->open_failure())
22  {
23    delete fp;
24    return 0;
25  }
[124]26
[17]27  uint8_t id,color_map,im_type;
[2]28
[17]29  id=fp->read_uint8();
30  color_map=fp->read_uint8();
31  im_type=fp->read_uint8();
[2]32
33  if (color_map!=0)
34  {
35    delete fp;
36    return 0;
37  }
38
39  if (!(im_type==2 || im_type==10))
40  {
41    delete fp;
42    return 0;
43  }
44
[17]45  fp->read_uint16();
46  fp->read_uint16();
47  fp->read_uint8();
[2]48
[17]49  fp->read_uint16();
50  fp->read_uint16();
[2]51
52
[17]53  int w=fp->read_uint16();
54  int h=fp->read_uint16();
55  uint8_t bpp=fp->read_uint8();
[40]56  fp->read_uint8(); // im_des
[2]57
58  if (bpp!=32)
59  {
60    delete fp;
61    return 0;
62  }
63
64  image *im=new image(w,h);
65
66  int x,y;
[17]67  uint8_t ctrl;
68  uint8_t bgra[4],*sl,c,lr=0,lg=0,lb=0,ll=0,lc=0;
[2]69
[124]70
71
72
[2]73  if (im_type==10)
[124]74  {
[2]75    for (y=0;y<h;y++)
76    {
77      sl=im->scan_line(h-y-1);
78
79      for (x=0;x<w;)
80      {
[17]81        ctrl=fp->read_uint8();
[2]82        if (ctrl&0x80)
83        {
84          fp->read(bgra,4);
85          ctrl&=(~0x80);
86          ctrl++;
87          if (bgra[3])
88          {
89            if (ll && lr==bgra[2] && lg==bgra[1] && lb==bgra[0])
90              c=lc;
91            else
92            {
93              c=pal->find_closest_non0(bgra[2],bgra[1],bgra[0]);
94              lr=bgra[2];
95              lg=bgra[1];
96              lb=bgra[0];
97              lc=c;
98              ll=1;
99            }
100
101          }
102          else c=0;
103
104          while (ctrl--)
105          {
106            *sl=c;
107            sl++;
108            x++;
109          }
110        } else
111        {
[124]112          ctrl++;
[2]113          while (ctrl--)
114          {
115            fp->read(bgra,4);
116            if (bgra[3])
117            {
118              c=pal->find_closest_non0(bgra[2],bgra[1],bgra[0]);
119            }
120            else c=0;
121            *sl=c;
122            sl++;
123            x++;
124          }
125        }
126      }
[124]127    }
[2]128  }
129
130
131
132  delete fp;
133  return im;
134}
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