source: abuse/tags/pd/imlib/include/image.hpp @ 49

Last change on this file since 49 was 49, checked in by Sam Hocevar, 11 years ago
  • Imported original public domain release, for future reference.
File size: 6.9 KB
Line 
1#ifndef _IMGAE_HPP_
2#define _IMGAE_HPP_
3#include <stdlib.h>
4#include "linked.hpp"
5#include "palette.hpp"
6#include "system.h"
7#include "specs.hpp"
8#define MAX_DIRTY 200
9#define Inew(pointer,type); { make_block(sizeof(type)); pointer=new type; }
10
11extern char  *imerr_messages[];  // correspond to imERRORS
12#define imREAD_ERROR           1
13#define imINCORRECT_FILETYPE   2
14#define imFILE_CORRUPTED       3
15#define imFILE_NOT_FOUND       4
16#define imMEMORY_ERROR         5
17#define imNOT_SUPPORTED        6
18#define imWRITE_ERROR          7
19#define imMAX_ERROR            7
20
21short current_error();
22void clear_errors();
23void set_error(short x);
24short last_error();
25void make_block(size_t size);
26void image_init();
27void image_uninit();
28extern linked_list image_list;
29
30
31class filter;
32
33
34class dirty_rect : public linked_node
35{
36public :
37  short dx1,dy1,dx2,dy2;
38  dirty_rect(short x1, short y1, short x2, short y2)
39  { dx1=x1; dy1=y1; dx2=x2; dy2=y2;
40    if (x2<x1 || y2<y1)
41      printf("add inccorect dirty\n");
42  }
43  virtual short compare(void *n1, short field)
44  { return ((dirty_rect *)n1)->dy1>dy1; }
45} ;
46
47class image_descriptor
48{
49  short l,h;
50  short clipx1, clipy1, clipx2, clipy2;
51public : 
52  unsigned char keep_dirt,
53                static_mem;      // if this flag is set then don't free memory on exit
54 
55  linked_list dirties;
56  void *extended_descriptor;              // type depends on current system
57
58  image_descriptor(short length, short height,
59                  int keep_dirties=1, int static_memory=0);
60  short bound_x1(short x1)  { return x1<clipx1 ? clipx1 : x1; }
61  short bound_y1(short y1)  { return y1<clipy1 ? clipy1 : y1; }
62  short bound_x2(short x2)  { return x2>clipx2 ? clipx2 : x2; }
63  short bound_y2(short y2)  { return y2>clipy2 ? clipy2 : y2; }
64  short x1_clip() { return clipx1; }
65  short y1_clip() { return clipy1; }
66  short x2_clip() { return clipx2; }
67  short y2_clip() { return clipy2; }
68  void dirty_area(short x1, short y1, short x2, short y2) { ;}
69  void clean_area(short x1, short y1, short x2, short y2) { ; }
70  void clear_dirties();
71  short get_dirty_area(short &x1, short &y1, short &x2, short &y2) { return 0; }
72  void get_clip(short &x1, short &y1, short &x2, short &y2)
73    { x1=clipx1; y1=clipy1; x2=clipx2; y2=clipy2; }
74  void set_clip(short x1, short y1, short x2, short y2)
75    { if (x2<x1) x2=x1;
76      if (y2<y1) y2=y1;
77      if (x1<0) clipx1=0; else clipx1=x1;
78      if (y1<0) clipy1=0; else clipy1=y1;
79      if (x2>=l) clipx2=l-1; else clipx2=x2;
80      if (y2>=h) clipy2=h-1; else clipy2=y2;
81    }
82  void reduce_dirties();
83  void add_dirty(int x1, int y1, int x2, int y2);
84  void delete_dirty(int x1, int y1, int x2, int y2);
85  void resize(short length, short height)
86   { l=length; h=height; clipx1=0; clipy1=0; clipx2=l-1; clipy2=h-1; }
87} ;
88
89class image : public linked_node
90{
91  unsigned char *data;
92  short w,h;
93  void make_page(short width, short height, unsigned char *page_buffer);
94  void delete_page();
95public :
96  image_descriptor *special;
97  image(spec_entry *e, bFILE *fp);
98  image(bFILE *fp);
99  image(short width, short height,                 // required
100        unsigned char *page_buffer=NULL,
101        short create_descriptor=0);        // 0=no, 1=yes, 2=yes & keep dirties
102  unsigned char  pixel              (short x, short y);
103  void           putpixel           (short x, short y, char color);
104  unsigned char *scan_line          (short y) { return data+y*w; }
105  unsigned char *next_line          (short lasty, unsigned char *last_scan)
106                                    { return last_scan+w; }         
107  long           total_pixels       (unsigned char background=0);
108  image         *copy               ();    // makes a copy of an image
109  void           clear              (short color=-1);  // -1 is background color
110  void           to_24bit           (palette &pal);
111  short          width              () { return (short)w; }
112  short          height             () { return (short)h; }
113  void           scroll             (short x1, short y1, short x2, short y2, short xd, short yd);
114  void           fill_image         (image *screen, short x1, short y1, short x2, short y2,
115                                     short allign=1);
116  void           put_image          (image *screen, short x, short y, char transparent=0);
117  void           put_part           (image *screen, short x, short y, short x1, short y1,
118                                     short x2, short y2, char transparent=0);
119  void           put_part_xrev      (image *screen, short x, short y, short x1, short y1,
120                                     short x2, short y2, char transparent=0);
121  void           put_part_masked    (image *screen, image *mask, short x, short y,
122                                     short maskx, short masky, short x1, short y1, short x2, short y2);
123  image         *copy_part_dithered (short x1, short y1, short x2, short y2);
124  void           bar                (short x1, short y1, short x2, short y2, unsigned char color);
125  void           xor_bar            (short x1, short y1, short x2, short y2, unsigned char color);
126  void           wiget_bar          (short x1, short y1, short x2, short y2,
127                                     unsigned char light, unsigned char med, unsigned char dark);
128  void           line               (short x1, short y1, short x2, short y2, unsigned char color);
129  void           rectangle          (short x1, short y1, short x2, short y2, unsigned char color);
130  void           burn_led           (short x, short y, long num, short color, short scale=1);
131  void           set_clip           (short x1, short y1, short x2, short y2);
132  void           get_clip           (short &x1,short &y1,short &x2,short &y2);
133  void           in_clip            (short x1, short y1, short x2, short y2);
134
135  void           dirt_off           () { if (special && special->keep_dirt) special->keep_dirt=0; }
136  void           dirt_on            () { if (special) special->keep_dirt=1; }
137
138  void           add_dirty          (int x1, int y1, int x2, int y2)
139                                    { if (special) special->add_dirty(x1,y1,x2,y2); }
140  void           delete_dirty       (int x1, int y1, int x2, int y2)
141                                    { if (special) special->delete_dirty(x1,y1,x2,y2); }
142  void           clear_dirties      () { if (special) special->clear_dirties(); }
143  void           dither             (palette *pal); // use a b&w palette!
144  void           resize             (short new_width, short new_height);
145  void           change_size        (short new_width, short new_height, unsigned char *page=NULL);
146  void           flood_fill         (short x, short y, unsigned char color);
147  image         *create_smooth      (short smoothness=1); // 0 no smoothness
148  void           unpack_scanline    (short line, char bitsperpixel=1);
149  unsigned char  brightest_color    (palette *pal);
150  void           flip_x             ();
151  void           flip_y             ();
152  void           make_color         (unsigned char color);
153  unsigned char  darkest_color      (palette *pal, short noblack=0);
154
155  ~image();
156} ;
157
158
159class image_controller
160{
161public :
162  image_controller() { image_init(); }
163  ~image_controller()
164  {
165     image_uninit();
166  }
167} ;
168
169
170
171#endif
172
173
174
175
176
177
178
179
Note: See TracBrowser for help on using the repository browser.