1 | /* |
2 | * Copyright (c) 2018-2019, Salvatore Sanfilippo <antirez at gmail dot com> |
3 | * All rights reserved. |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions are met: |
7 | * |
8 | * * Redistributions of source code must retain the above copyright notice, |
9 | * this list of conditions and the following disclaimer. |
10 | * * Redistributions in binary form must reproduce the above copyright |
11 | * notice, this list of conditions and the following disclaimer in the |
12 | * documentation and/or other materials provided with the distribution. |
13 | * * Neither the name of Redis nor the names of its contributors may be used |
14 | * to endorse or promote products derived from this software without |
15 | * specific prior written permission. |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
18 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
21 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
22 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
23 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
24 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
25 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
26 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
27 | * POSSIBILITY OF SUCH DAMAGE. |
28 | */ |
29 | |
30 | /* This structure represents our canvas. Drawing functions will take a pointer |
31 | * to a canvas to write to it. Later the canvas can be rendered to a string |
32 | * suitable to be printed on the screen, using unicode Braille characters. */ |
33 | |
34 | /* This represents a very simple generic canvas in order to draw stuff. |
35 | * It's up to each LOLWUT versions to translate what they draw to the |
36 | * screen, depending on the result to accomplish. */ |
37 | |
38 | #ifndef __LOLWUT_H |
39 | #define __LOLWUT_H |
40 | |
41 | typedef struct lwCanvas { |
42 | int width; |
43 | int height; |
44 | char *pixels; |
45 | } lwCanvas; |
46 | |
47 | /* Drawing functions implemented inside lolwut.c. */ |
48 | lwCanvas *lwCreateCanvas(int width, int height, int bgcolor); |
49 | void lwFreeCanvas(lwCanvas *canvas); |
50 | void lwDrawPixel(lwCanvas *canvas, int x, int y, int color); |
51 | int lwGetPixel(lwCanvas *canvas, int x, int y); |
52 | void lwDrawLine(lwCanvas *canvas, int x1, int y1, int x2, int y2, int color); |
53 | void lwDrawSquare(lwCanvas *canvas, int x, int y, float size, float angle, int color); |
54 | |
55 | #endif |
56 | |