source: abuse/trunk/src/imlib/image.h @ 521

Last change on this file since 521 was 521, checked in by Sam Hocevar, 11 years ago

imlib: remove unused image::make_color and timage::make_color. They were
probably used for debugging purposes, but we can still revive them when
we need them.

  • Property svn:keywords set to Id
File size: 6.5 KB
Line 
1/*
2 *  Abuse - dark 2D side-scrolling platform game
3 *  Copyright (c) 1995 Crack dot Com
4 *  Copyright (c) 2005-2011 Sam Hocevar <sam@hocevar.net>
5 *
6 *  This software was released into the Public Domain. As with most public
7 *  domain software, no warranty is made or implied by Crack dot Com or
8 *  Jonathan Clark.
9 */
10
11#ifndef _IMAGE_HPP_
12#define _IMAGE_HPP_
13
14#include <stdlib.h>
15#include "linked.h"
16#include "palette.h"
17#include "system.h"
18#include "specs.h"
19#define MAX_DIRTY 200
20
21extern char const *imerr_messages[];  // correspond to imERRORS
22#define imREAD_ERROR            1
23#define imINCORRECT_FILETYPE   2
24#define imFILE_CORRUPTED       3
25#define imFILE_NOT_FOUND       4
26#define imMEMORY_ERROR         5
27#define imNOT_SUPPORTED        6
28#define imWRITE_ERROR          7
29#define imMAX_ERROR            7
30
31int16_t current_error();
32void clear_errors();
33void set_error(int16_t x);
34int16_t last_error();
35void image_init();
36void image_uninit();
37extern linked_list image_list;
38
39typedef struct image_color_t
40{
41    uint16_t r;
42    uint16_t g;
43    uint16_t b;
44} image_color;
45
46class filter;
47
48
49class dirty_rect : public linked_node
50{
51public :
52  int16_t dx1,dy1,dx2,dy2;
53  dirty_rect(int16_t x1, int16_t y1, int16_t x2, int16_t y2)
54  { dx1=x1; dy1=y1; dx2=x2; dy2=y2;
55    if(x2<x1 || y2<y1)
56      printf("add incorrect dirty\n");
57  }
58  virtual int16_t compare(void *n1, int16_t field)
59  { return((dirty_rect *)n1)->dy1>dy1; }
60} ;
61
62class image_descriptor
63{
64private:
65    int m_l, m_h;
66    int m_clipx1, m_clipy1, m_clipx2, m_clipy2;
67
68public:
69    uint8_t keep_dirt,
70            static_mem; // if set, don't free memory on exit
71
72    linked_list dirties;
73    void *extended_descriptor;
74
75    image_descriptor(vec2i size, int keep_dirties = 1, int static_memory = 0);
76    int bound_x1(int x1) { return x1 < m_clipx1 ? m_clipx1 : x1; }
77    int bound_y1(int y1) { return y1 < m_clipy1 ? m_clipy1 : y1; }
78    int bound_x2(int x2) { return x2 > m_clipx2 ? m_clipx2 : x2; }
79    int bound_y2(int y2) { return y2 > m_clipy2 ? m_clipy2 : y2; }
80    inline int x1_clip() { return m_clipx1; }
81    inline int y1_clip() { return m_clipy1; }
82    inline int x2_clip() { return m_clipx2; }
83    inline int y2_clip() { return m_clipy2; }
84    void ClearDirties();
85    void GetClip(int &x1, int &y1, int &x2, int &y2)
86    {
87        x1 = m_clipx1; y1 = m_clipy1; x2 = m_clipx2; y2 = m_clipy2;
88    }
89    void SetClip(int x1, int y1, int x2, int y2)
90    {
91        if(x2 < x1 + 1) x2 = x1 + 1;
92        if(y2 < y1 + 1) y2 = y1 + 1;
93        m_clipx1 = Max(x1, 0); m_clipy1 = Max(y1, 0);
94        m_clipx2 = Min(x2, m_l); m_clipy2 = Min(y2, m_h);
95    }
96    void ReduceDirties();
97    void AddDirty(int x1, int y1, int x2, int y2);
98    void delete_dirty(int x1, int y1, int x2, int y2);
99    void Resize(vec2i size)
100    {
101        m_l = size.x; m_h = size.y;
102        m_clipx1 = 0; m_clipy1 = 0; m_clipx2 = m_l; m_clipy2 = m_h;
103    }
104};
105
106class image : public linked_node
107{
108private:
109    uint8_t *m_data;
110    vec2i m_size;
111    bool m_locked;
112
113    void MakePage(vec2i size, uint8_t *page_buffer);
114    void DeletePage();
115
116public:
117    image_descriptor *m_special;
118
119    image(spec_entry *e, bFILE *fp);
120    image(bFILE *fp);
121    image(vec2i size, uint8_t *page_buffer = NULL, int create_descriptor = 0);
122    ~image();
123
124    void Lock();
125    void Unlock();
126
127    uint8_t Pixel(vec2i pos);
128    void PutPixel(vec2i pos, uint8_t color);
129
130    inline uint8_t *scan_line(int16_t y)
131    {
132        return m_data + y * m_size.x;
133    }
134    inline uint8_t *next_line(int16_t lasty, uint8_t *last_scan)
135    {
136        return last_scan + m_size.x;
137    }
138    int32_t total_pixels(uint8_t background=0);
139    image *copy(); // makes a copy of an image
140    void clear(int16_t color = -1); // -1 is background color
141    void to_24bit(palette &pal);
142
143    vec2i Size() const { return m_size; }
144
145    void scroll(int16_t x1, int16_t y1, int16_t x2, int16_t y2,
146                int16_t xd, int16_t yd);
147    void fill_image(image *screen, int16_t x1, int16_t y1,
148                    int16_t x2, int16_t y2, int16_t align = 1);
149    void put_image(image *screen, int16_t x, int16_t y, char transparent = 0);
150    void put_part(image *screen, int16_t x, int16_t y, int16_t x1, int16_t y1,
151                  int16_t x2, int16_t y2, char transparent = 0);
152    void put_part_xrev(image *screen, int16_t x, int16_t y,
153                       int16_t x1, int16_t y1, int16_t x2, int16_t y2,
154                       char transparent = 0);
155    void put_part_masked(image *screen, image *mask, int16_t x, int16_t y,
156                         int16_t maskx, int16_t masky, int16_t x1, int16_t y1,
157                         int16_t x2, int16_t y2);
158    image *copy_part_dithered(int16_t x1, int16_t y1, int16_t x2, int16_t y2);
159    void bar(int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint8_t color);
160    void xor_bar(int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint8_t color);
161    void widget_bar(int16_t x1, int16_t y1, int16_t x2, int16_t y2,
162                    uint8_t light, uint8_t med, uint8_t dark);
163    void line(int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint8_t color);
164    void rectangle(int16_t x1, int16_t y1, int16_t x2, int16_t y2,
165                   uint8_t color);
166    void burn_led(int16_t x, int16_t y, int32_t num, int16_t color,
167                  int16_t scale = 1);
168    void SetClip(int x1, int y1, int x2, int y2);
169    void GetClip(int &x1, int &y1, int &x2, int &y2);
170    void InClip(int x1, int y1, int x2, int y2);
171
172    void dirt_off()
173    {
174        if(m_special && m_special->keep_dirt) m_special->keep_dirt = 0;
175    }
176    void dirt_on()
177    {
178        if(m_special) m_special->keep_dirt = 1;
179    }
180
181    void AddDirty(int x1, int y1, int x2, int y2)
182    {
183        if (m_special) m_special->AddDirty(x1, y1, x2, y2);
184    }
185    void delete_dirty(int x1, int y1, int x2, int y2)
186    {
187        if(m_special) m_special->delete_dirty(x1, y1, x2, y2);
188    }
189    void ClearDirties()
190    {
191        if (m_special) m_special->ClearDirties();
192    }
193    void dither(palette *pal); // use a b&w palette!
194    void Scale(vec2i size);
195    void SetSize(vec2i size, uint8_t *page = NULL);
196    void flood_fill(int16_t x, int16_t y, uint8_t color);
197    image *create_smooth(int16_t smoothness = 1); // 0 no smoothness
198    void unpack_scanline(int16_t line, char bitsperpixel = 1);
199    uint8_t brightest_color(palette *pal);
200    void flip_x();
201    void flip_y();
202    uint8_t darkest_color(palette *pal, int16_t noblack = 0);
203};
204
205class image_controller
206{
207public:
208    image_controller()
209    {
210        image_init();
211    }
212    ~image_controller()
213    {
214        image_uninit();
215    }
216};
217
218#endif /* _IMAGE_HPP_ */
219
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