source: abuse/trunk/src/imlib/image.h @ 682

Last change on this file since 682 was 682, checked in by Sam Hocevar, 8 years ago

core: rename vec2i to ivec2 and update matrix.h from Lol Engine.

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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, by
8 *  Jonathan Clark, or by Sam Hocevar.
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 "specs.h"
18#define MAX_DIRTY 200
19
20void image_init();
21void image_uninit();
22extern linked_list image_list;
23
24class dirty_rect : public linked_node
25{
26public :
27    dirty_rect(ivec2 aa, ivec2 bb)
28    {
29        m_aa = aa;
30        m_bb = bb;
31        if (!(bb >= aa))
32            printf("add incorrect dirty\n");
33    }
34    virtual int compare(void *n1)
35    {
36        return ((dirty_rect *)n1)->m_aa.y > m_aa.y;
37    }
38
39    ivec2 m_aa, m_bb;
40};
41
42class image_descriptor
43{
44public:
45    uint8_t keep_dirt,
46            static_mem; // if set, don't free memory on exit
47
48    linked_list dirties;
49    void *extended_descriptor;
50
51    image_descriptor(ivec2 size, int keep_dirties = 1, int static_memory = 0);
52    int bound_x1(int x1) { return Max(x1, m_aa.x); }
53    int bound_y1(int y1) { return Max(y1, m_aa.y); }
54    int bound_x2(int x2) { return Min(x2, m_bb.x); }
55    int bound_y2(int y2) { return Min(y2, m_bb.y); }
56    inline int x1_clip() { return m_aa.x; }
57    inline int y1_clip() { return m_aa.y; }
58    inline int x2_clip() { return m_bb.x; }
59    inline int y2_clip() { return m_bb.y; }
60    void ClearDirties();
61    void GetClip(ivec2 &aa, ivec2 &bb)
62    {
63        aa = m_aa; bb = m_bb;
64    }
65    void SetClip(ivec2 aa, ivec2 bb)
66    {
67        m_aa = Max(aa, ivec2(0));
68        m_bb = Min(Max(bb, m_aa + ivec2(1)), m_size);
69    }
70    void GetClip(int &x1, int &y1, int &x2, int &y2)
71    {
72        x1 = m_aa.x; y1 = m_aa.y; x2 = m_bb.x; y2 = m_bb.y;
73    }
74    void SetClip(int x1, int y1, int x2, int y2)
75    {
76        if(x2 < x1 + 1) x2 = x1 + 1;
77        if(y2 < y1 + 1) y2 = y1 + 1;
78        m_aa.x = Max(x1, 0); m_aa.y = Max(y1, 0);
79        m_bb.x = Min(x2, m_size.x); m_bb.y = Min(y2, m_size.y);
80    }
81    void ReduceDirties();
82    void AddDirty(ivec2 aa, ivec2 bb);
83    void DeleteDirty(ivec2 aa, ivec2 bb);
84    void Resize(ivec2 size)
85    {
86        m_size = size;
87        m_aa = ivec2(0);
88        m_bb = size;
89    }
90
91private:
92    ivec2 m_size, m_aa, m_bb;
93};
94
95class image : public linked_node
96{
97private:
98    uint8_t *m_data;
99    ivec2 m_size;
100    bool m_locked;
101
102    void MakePage(ivec2 size, uint8_t *page_buffer);
103    void DeletePage();
104
105public:
106    image_descriptor *m_special;
107
108    image(bFILE *fp, spec_entry *e = NULL);
109    image(ivec2 size, uint8_t *page_buffer = NULL, int create_descriptor = 0);
110    ~image();
111
112    void Lock();
113    void Unlock();
114
115    uint8_t Pixel(ivec2 pos);
116    void PutPixel(ivec2 pos, uint8_t color);
117
118    inline uint8_t *scan_line(int16_t y)
119    {
120        return m_data + y * m_size.x;
121    }
122    image *copy(); // makes a copy of an image
123    void clear(int16_t color = -1); // -1 is background color
124
125    ivec2 Size() const { return m_size; }
126
127    void scroll(int16_t x1, int16_t y1, int16_t x2, int16_t y2,
128                int16_t xd, int16_t yd);
129    void PutImage(image *screen, ivec2 pos, int transparent = 0);
130    void PutPart(image *screen, ivec2 pos, ivec2 aa, ivec2 bb,
131                 int transparent = 0);
132    image *copy_part_dithered(int16_t x1, int16_t y1, int16_t x2, int16_t y2);
133    void Bar(ivec2 p1, ivec2 p2, uint8_t color);
134    void xor_bar(int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint8_t color);
135    void WidgetBar(ivec2 p1, ivec2 p2,
136                   uint8_t light, uint8_t med, uint8_t dark);
137    void Line(ivec2 p1, ivec2 p2, uint8_t color);
138    void Rectangle(ivec2 p1, ivec2 p2, uint8_t color);
139    void burn_led(int16_t x, int16_t y, int32_t num, int16_t color,
140                  int16_t scale = 1);
141    void SetClip(ivec2 aa, ivec2 bb);
142    void GetClip(ivec2 &aa, ivec2 &bb);
143    void InClip(ivec2 aa, ivec2 bb);
144    void SetClip(int x1, int y1, int x2, int y2);
145    void GetClip(int &x1, int &y1, int &x2, int &y2);
146    void InClip(int x1, int y1, int x2, int y2);
147
148    void dirt_off()
149    {
150        if(m_special && m_special->keep_dirt) m_special->keep_dirt = 0;
151    }
152    void dirt_on()
153    {
154        if(m_special) m_special->keep_dirt = 1;
155    }
156
157    void AddDirty(ivec2 aa, ivec2 bb)
158    {
159        if (m_special) m_special->AddDirty(aa, bb);
160    }
161    void DeleteDirty(ivec2 aa, ivec2 bb)
162    {
163        if(m_special) m_special->DeleteDirty(aa, bb);
164    }
165    void ClearDirties()
166    {
167        if (m_special) m_special->ClearDirties();
168    }
169    void dither(palette *pal); // use a b&w palette!
170    void Scale(ivec2 size);
171    void SetSize(ivec2 size, uint8_t *page = NULL);
172    void flood_fill(int16_t x, int16_t y, uint8_t color);
173    image *create_smooth(int16_t smoothness = 1); // 0 no smoothness
174    void unpack_scanline(int16_t line, char bitsperpixel = 1);
175    void FlipX();
176    void FlipY();
177};
178
179class image_controller
180{
181public:
182    image_controller()
183    {
184        image_init();
185    }
186    ~image_controller()
187    {
188        image_uninit();
189    }
190};
191
192#endif /* _IMAGE_HPP_ */
193
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