source: libpipi/trunk/pipi/pipi_internals.h @ 3339

Last change on this file since 3339 was 3339, checked in by Sam Hocevar, 13 years ago

Create basic tile handling functions.

File size: 3.3 KB
Line 
1/*
2 *  libpipi       Pathetic image processing interface library
3 *  Copyright (c) 2004-2008 Sam Hocevar <sam@zoy.org>
4 *                All Rights Reserved
5 *
6 *  $Id$
7 *
8 *  This library is free software. It comes without any warranty, to
9 *  the extent permitted by applicable law. You can redistribute it
10 *  and/or modify it under the terms of the Do What The Fuck You Want
11 *  To Public License, Version 2, as published by Sam Hocevar. See
12 *  http://sam.zoy.org/wtfpl/COPYING for more details.
13 */
14
15/*
16 *  pipi_internals.h: internal types
17 */
18
19#ifndef __PIPI_INTERNALS_H__
20#define __PIPI_INTERNALS_H__
21
22#include "pipi_stubs.h"
23
24#define SET_FLAG_GRAY 0x00000001
25#define SET_FLAG_WRAP 0x00000002
26#define SET_FLAG_8BIT 0x00000004
27
28struct pipi_histogram
29{
30    int r_present, g_present, b_present, y_present;
31    unsigned int a[256];
32    unsigned int r[256];
33    unsigned int g[256];
34    unsigned int b[256];
35    unsigned int y[256];
36};
37
38#ifdef USE_TILES
39#define TILE_SIZE 128
40
41struct pipi_tile
42{
43    int x, y;
44    int zoom;
45
46    int refcount;
47
48    pipi_format_t fmt;
49    int plane;
50    union { uint8_t *u8; float *f; double *d; } data;
51    union { uint8_t u8[1]; float f[1]; double d[1]; } align;
52};
53#endif /* USE_TILES */
54
55/* pipi_image_t: the image structure. This is probably going to be the most
56 * complex structure in the library, but right now it only has fairly normal
57 * stuff, like width and height and pointers to pixel areas. */
58struct pipi_image
59{
60    int w, h, pitch;
61
62#ifdef USE_TILES
63    pipi_tile_t **tiles;
64    int ntiles;
65#endif /* USE_TILES */
66
67    /* A list of internal image flags.
68     *  wrap: should filters wrap around at edges?
69     *  u8: are the image samples still 8-bit per channel? */
70    int wrap, u8;
71
72    /* Translation vectors for wrap around and tiling. */
73    int wrapx1, wrapy1, wrapx2, wrapy2;
74
75    /* List of all possible pixel formats and the last active one. */
76    pipi_pixels_t p[PIPI_PIXELS_MAX];
77    pipi_format_t last_modified;
78
79    /* Private data used by the codec */
80    pipi_format_t codec_format;
81    void *codec_priv;
82    int (*codec_free)(pipi_image_t *);
83};
84
85struct pipi_context
86{
87    int nimages;
88    pipi_image_t *images[1024]; /* FIXME: do dynamic allocation */
89};
90
91#ifdef USE_IMLIB2
92pipi_image_t *pipi_load_imlib2(const char *name);
93int pipi_save_imlib2(pipi_image_t *img, const char *name);
94#endif
95
96#ifdef USE_OPENCV
97pipi_image_t *pipi_load_opencv(const char *name);
98int pipi_save_opencv(pipi_image_t *img, const char *name);
99#endif
100
101#ifdef USE_SDL
102pipi_image_t *pipi_load_sdl(const char *name);
103int pipi_save_sdl(pipi_image_t *img, const char *name);
104#endif
105
106#ifdef USE_GDIPLUS
107pipi_image_t *pipi_load_gdiplus(const char *name);
108int pipi_save_gdiplus(pipi_image_t *img, const char *name);
109#endif
110
111#ifdef USE_GDI
112pipi_image_t *pipi_load_gdi(const char *name);
113int pipi_save_gdi(pipi_image_t *img, const char *name);
114#endif
115
116#ifdef USE_COCOA
117pipi_image_t *pipi_load_coreimage(const char *name);
118int pipi_save_coreimage(pipi_image_t *img, const char *name);
119#endif
120
121/* Modular codecs */
122#ifdef USE_MODULAR
123pipi_image_t *pipi_load_modular(const char *name);
124int pipi_save_modular(pipi_image_t *img, const char *name);
125#endif
126
127
128
129pipi_image_t *pipi_load_oric(const char *name);
130int pipi_save_oric(pipi_image_t *img, const char *name);
131
132#endif /* __PIPI_INTERNALS_H__ */
133
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