source: libcaca/trunk/cucul/cucul.h @ 708

Last change on this file since 708 was 708, checked in by Sam Hocevar, 15 years ago
  • Added cucul_get_export_list(). Returns a list of known export formats.
  • Property svn:keywords set to Id
File size: 8.8 KB
Line 
1/*
2 *  libcucul      Canvas for ultrafast compositing of Unicode letters
3 *  Copyright (c) 2002-2006 Sam Hocevar <sam@zoy.org>
4 *                All Rights Reserved
5 *
6 *  This library is free software; you can redistribute it and/or
7 *  modify it under the terms of the Do What The Fuck You Want To
8 *  Public License, Version 2, as published by Sam Hocevar. See
9 *  http://sam.zoy.org/wtfpl/COPYING for more details.
10 */
11
12/** \file cucul.h
13 *  \version \$Id: cucul.h 708 2006-04-01 14:36:59Z sam $
14 *  \author Sam Hocevar <sam@zoy.org>
15 *  \brief The \e libcucul public header.
16 *
17 *  This header contains the public types and functions that applications
18 *  using \e libcucul may use.
19 */
20
21#ifndef __CUCUL_H__
22#define __CUCUL_H__
23
24#define CUCUL_API_VERSION_1
25
26#ifdef __cplusplus
27extern "C"
28{
29#endif
30
31/** \brief Colour definitions.
32 *
33 *  Colours that can be used with cucul_set_color().
34 */
35enum cucul_color
36{
37    CUCUL_COLOR_BLACK = 0, /**< The colour index for black. */
38    CUCUL_COLOR_BLUE = 1, /**< The colour index for blue. */
39    CUCUL_COLOR_GREEN = 2, /**< The colour index for green. */
40    CUCUL_COLOR_CYAN = 3, /**< The colour index for cyan. */
41    CUCUL_COLOR_RED = 4, /**< The colour index for red. */
42    CUCUL_COLOR_MAGENTA = 5, /**< The colour index for magenta. */
43    CUCUL_COLOR_BROWN = 6, /**< The colour index for brown. */
44    CUCUL_COLOR_LIGHTGRAY = 7, /**< The colour index for light gray. */
45    CUCUL_COLOR_DARKGRAY = 8, /**< The colour index for dark gray. */
46    CUCUL_COLOR_LIGHTBLUE = 9, /**< The colour index for blue. */
47    CUCUL_COLOR_LIGHTGREEN = 10, /**< The colour index for light green. */
48    CUCUL_COLOR_LIGHTCYAN = 11, /**< The colour index for light cyan. */
49    CUCUL_COLOR_LIGHTRED = 12, /**< The colour index for light red. */
50    CUCUL_COLOR_LIGHTMAGENTA = 13, /**< The colour index for light magenta. */
51    CUCUL_COLOR_YELLOW = 14, /**< The colour index for yellow. */
52    CUCUL_COLOR_WHITE = 15 /**< The colour index for white. */
53};
54
55/** \brief Internal features.
56 *
57 *  Internal libcaca features such as the rendering method or the dithering
58 *  mode.
59 */
60enum cucul_feature
61{
62    CUCUL_BACKGROUND       = 0x10, /**< Properties of background characters. */
63    CUCUL_BACKGROUND_BLACK = 0x11, /**< Draw only black backgrounds. */
64    CUCUL_BACKGROUND_SOLID = 0x12, /**< Draw coloured solid backgorunds. */
65#define CUCUL_BACKGROUND_MIN 0x11 /**< First background property */
66#define CUCUL_BACKGROUND_MAX 0x12 /**< Last background property */
67
68    CUCUL_ANTIALIASING           = 0x20, /**< Antialiasing features. */
69    CUCUL_ANTIALIASING_NONE      = 0x21, /**< No antialiasing. */
70    CUCUL_ANTIALIASING_PREFILTER = 0x22, /**< Prefilter antialiasing. */
71#define CUCUL_ANTIALIASING_MIN     0x21 /**< First antialiasing feature. */
72#define CUCUL_ANTIALIASING_MAX     0x22 /**< Last antialiasing feature. */
73
74    CUCUL_DITHERING          = 0x30, /**< Dithering methods */
75    CUCUL_DITHERING_NONE     = 0x31, /**< No dithering. */
76    CUCUL_DITHERING_ORDERED2 = 0x32, /**< Ordered 2x2 Bayer dithering. */
77    CUCUL_DITHERING_ORDERED4 = 0x33, /**< Ordered 4x4 Bayer dithering. */
78    CUCUL_DITHERING_ORDERED8 = 0x34, /**< Ordered 8x8 Bayer dithering. */
79    CUCUL_DITHERING_RANDOM   = 0x35, /**< Random dithering. */
80    CUCUL_DITHERING_FSTEIN   = 0x36, /**< Floyd-Steinberg dithering. */
81#define CUCUL_DITHERING_MIN    0x31 /**< First dithering feature. */
82#define CUCUL_DITHERING_MAX    0x36 /**< Last dithering feature. */
83
84    CUCUL_FEATURE_UNKNOWN = 0xffff /**< Unknown feature. */
85};
86
87/*
88 * Backwards compatibility macros
89 */
90#if !defined(_DOXYGEN_SKIP_ME)
91#define caca_dithering cucul_feature
92#define caca_set_dithering caca_set_feature
93#define caca_get_dithering_name caca_get_feature_name
94#define CACA_DITHER_NONE    CUCUL_DITHERING_NONE
95#define CACA_DITHER_ORDERED CUCUL_DITHERING_ORDERED8
96#define CACA_DITHER_RANDOM  CUCUL_DITHERING_RANDOM
97#endif
98
99typedef struct cucul_context cucul_t;
100
101/** \defgroup basic Basic functions
102 *
103 *  These functions provide the basic \e libcaca routines for library
104 *  initialisation, system information retrieval and configuration.
105 *
106 *  @{ */
107cucul_t * cucul_create(unsigned int, unsigned int);
108cucul_t * cucul_load(void *, unsigned int);
109void cucul_set_size(cucul_t *, unsigned int, unsigned int);
110unsigned int cucul_get_width(cucul_t *);
111unsigned int cucul_get_height(cucul_t *);
112enum cucul_feature cucul_get_feature(cucul_t *, enum cucul_feature);
113void cucul_set_feature(cucul_t *, enum cucul_feature);
114char const *cucul_get_feature_name(enum cucul_feature);
115void cucul_free(cucul_t *);
116/*  @} */
117
118/** \defgroup canvas Canvas drawing
119 *
120 *  These functions provide low-level character printing routines and
121 *  higher level graphics functions.
122 *
123 *  @{ */
124void cucul_set_color(cucul_t *, enum cucul_color, enum cucul_color);
125enum cucul_color cucul_get_fg_color(cucul_t const *);
126enum cucul_color cucul_get_bg_color(cucul_t const *);
127char const *cucul_get_color_name(enum cucul_color);
128void cucul_putchar(cucul_t *, int, int, char);
129void cucul_putstr(cucul_t *, int, int, char const *);
130void cucul_printf(cucul_t *, int, int, char const *, ...);
131void cucul_get_screen(cucul_t const *, char *);
132void cucul_clear(cucul_t *);
133void cucul_blit(cucul_t *, int, int, cucul_t const *, cucul_t const *);
134/*  @} */
135
136/** \defgroup transform Canvas transformation
137 *
138 *  These functions perform horizontal and vertical canvas flipping.
139 *
140 *  @{ */
141void cucul_invert(cucul_t *);
142void cucul_flip(cucul_t *);
143void cucul_flop(cucul_t *);
144void cucul_rotate(cucul_t *);
145/*  @} */
146
147/** \defgroup prim Primitives drawing
148 *
149 *  These functions provide routines for primitive drawing, such as lines,
150 *  boxes, triangles and ellipses.
151 *
152 *  @{ */
153void cucul_draw_line(cucul_t *, int, int, int, int, char const *);
154void cucul_draw_polyline(cucul_t *, int const x[], int const y[], int, char const *);
155void cucul_draw_thin_line(cucul_t *, int, int, int, int);
156void cucul_draw_thin_polyline(cucul_t *, int const x[], int const y[], int);
157
158void cucul_draw_circle(cucul_t *, int, int, int, char const *);
159void cucul_draw_ellipse(cucul_t *, int, int, int, int, char const *);
160void cucul_draw_thin_ellipse(cucul_t *, int, int, int, int);
161void cucul_fill_ellipse(cucul_t *, int, int, int, int, char const *);
162
163void cucul_draw_box(cucul_t *, int, int, int, int, char const *);
164void cucul_draw_thin_box(cucul_t *, int, int, int, int);
165void cucul_fill_box(cucul_t *, int, int, int, int, char const *);
166
167void cucul_draw_triangle(cucul_t *, int, int, int, int, int, int, char const *);
168void cucul_draw_thin_triangle(cucul_t *, int, int, int, int, int, int);
169void cucul_fill_triangle(cucul_t *, int, int, int, int, int, int, char const *);
170/*  @} */
171
172/** \defgroup math Mathematical functions
173 *
174 *  These functions provide a few useful math-related routines.
175 *
176 *  @{ */
177int cucul_rand(int, int);
178unsigned int cucul_sqrt(unsigned int);
179/*  @} */
180
181/** \defgroup sprite Sprite handling
182 *
183 *  These functions provide high level routines for sprite loading, animation
184 *  and rendering.
185 *
186 *  @{ */
187struct cucul_sprite;
188struct cucul_sprite * cucul_load_sprite(cucul_t *, char const *);
189int cucul_get_sprite_frames(cucul_t *, struct cucul_sprite const *);
190int cucul_get_sprite_width(cucul_t *, struct cucul_sprite const *, int);
191int cucul_get_sprite_height(cucul_t *, struct cucul_sprite const *, int);
192int cucul_get_sprite_dx(cucul_t *, struct cucul_sprite const *, int);
193int cucul_get_sprite_dy(cucul_t *, struct cucul_sprite const *, int);
194void cucul_draw_sprite(cucul_t *, int, int, struct cucul_sprite const *, int);
195void cucul_free_sprite(struct cucul_sprite *);
196/*  @} */
197
198/** \defgroup bitmap Bitmap handling
199 *
200 *  These functions provide high level routines for bitmap allocation and
201 *  rendering.
202 *
203 *  @{ */
204struct cucul_bitmap;
205struct cucul_bitmap *cucul_create_bitmap(unsigned int, unsigned int,
206                                         unsigned int, unsigned int,
207                                         unsigned int, unsigned int,
208                                         unsigned int, unsigned int);
209void cucul_set_bitmap_palette(struct cucul_bitmap *,
210                              unsigned int r[], unsigned int g[],
211                              unsigned int b[], unsigned int a[]);
212void cucul_set_bitmap_gamma(struct cucul_bitmap *, float);
213void cucul_draw_bitmap(cucul_t *, int, int, int, int, struct cucul_bitmap const *, void *);
214void cucul_set_bitmap_invert(struct cucul_bitmap *, unsigned char);
215void cucul_free_bitmap(struct cucul_bitmap *);
216/*  @} */
217
218/** \defgroup exporter Exporters to various formats
219 *
220 *  These functions export the current canvas to various text formats. It
221 *  is necessary to call cucul_free_export() to dispose of the data.
222 *
223 *  @{ */
224struct cucul_export
225{
226    unsigned int size;
227    char *buffer;
228};
229
230struct cucul_export * cucul_create_export(cucul_t *, char const *);
231char const * const * cucul_get_export_list(void);
232void cucul_free_export(struct cucul_export *);
233
234/*  @} */
235
236#ifdef __cplusplus
237}
238#endif
239
240#endif /* __CUCUL_H__ */
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