Mercurial > molko
comparison src/libmlk-core/core/image.c @ 320:8f9937403749
misc: improve loading of data
author | David Demelier <markand@malikania.fr> |
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date | Fri, 01 Oct 2021 20:30:00 +0200 |
parents | libmlk-core/core/image.c@d01e83210ca2 |
children | 64aff0afc8ac |
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319:b843eef4cc35 | 320:8f9937403749 |
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1 /* | |
2 * image.c -- basic image management | |
3 * | |
4 * Copyright (c) 2020-2021 David Demelier <markand@malikania.fr> | |
5 * | |
6 * Permission to use, copy, modify, and/or distribute this software for any | |
7 * purpose with or without fee is hereby granted, provided that the above | |
8 * copyright notice and this permission notice appear in all copies. | |
9 * | |
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
17 */ | |
18 | |
19 #include <assert.h> | |
20 | |
21 #include <SDL_image.h> | |
22 | |
23 #include "error.h" | |
24 #include "texture.h" | |
25 #include "window.h" | |
26 #include "window_p.h" | |
27 | |
28 static void | |
29 dimensions(struct texture *tex) | |
30 { | |
31 int w, h; | |
32 | |
33 if (SDL_QueryTexture(tex->handle, NULL, NULL, &w, &h) < 0) | |
34 tex->w = tex->h = 0; | |
35 else { | |
36 tex->w = w; | |
37 tex->h = h; | |
38 } | |
39 } | |
40 | |
41 int | |
42 image_open(struct texture *tex, const char *path) | |
43 { | |
44 assert(tex); | |
45 assert(path); | |
46 | |
47 if (!(tex->handle = IMG_LoadTexture(RENDERER(), path))) | |
48 return errorf("%s", SDL_GetError()); | |
49 | |
50 dimensions(tex); | |
51 | |
52 return 0; | |
53 } | |
54 | |
55 int | |
56 image_openmem(struct texture *tex, const void *buffer, size_t size) | |
57 { | |
58 assert(buffer); | |
59 | |
60 SDL_RWops *ops = SDL_RWFromConstMem(buffer, size); | |
61 | |
62 if (!ops || !(tex->handle = IMG_LoadTexture_RW(RENDERER(), ops, 1))) | |
63 return errorf("%s", SDL_GetError()); | |
64 | |
65 dimensions(tex); | |
66 | |
67 return 0; | |
68 } |