Mercurial > molko
annotate libmlk-core/mlk/core/painter.c @ 634:3930234ab1f5
examples: add basic gamepad
author | David Demelier <markand@malikania.fr> |
---|---|
date | Tue, 29 Aug 2023 13:34:10 +0200 |
parents | f76cada0bbb2 |
children |
rev | line source |
---|---|
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
1 /* |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
2 * painter.c -- basic drawing routines |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
3 * |
445
773a082f0b91
misc: update copyright years
David Demelier <markand@malikania.fr>
parents:
431
diff
changeset
|
4 * Copyright (c) 2020-2023 David Demelier <markand@malikania.fr> |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
5 * |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
6 * Permission to use, copy, modify, and/or distribute this software for any |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
7 * purpose with or without fee is hereby granted, provided that the above |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
8 * copyright notice and this permission notice appear in all copies. |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
9 * |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
17 */ |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
18 |
106
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
97
diff
changeset
|
19 #include <math.h> |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
97
diff
changeset
|
20 |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
21 #include "color.h" |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
22 #include "painter.h" |
94
ed72843a7194
core: simplify font/texture interfaces
David Demelier <markand@malikania.fr>
parents:
59
diff
changeset
|
23 #include "texture.h" |
97
58133933ea17
window: expose some data to avoid functions
David Demelier <markand@malikania.fr>
parents:
96
diff
changeset
|
24 #include "window.h" |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
25 #include "window_p.h" |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
26 |
97
58133933ea17
window: expose some data to avoid functions
David Demelier <markand@malikania.fr>
parents:
96
diff
changeset
|
27 /* Current texture renderer. */ |
472
bc5483849614
core: texture -> mlk_texture
David Demelier <markand@malikania.fr>
parents:
461
diff
changeset
|
28 static struct mlk_texture *renderer; |
41
3996f873a54b
core: implement walksprite, closes #2455
David Demelier <markand@malikania.fr>
parents:
28
diff
changeset
|
29 |
472
bc5483849614
core: texture -> mlk_texture
David Demelier <markand@malikania.fr>
parents:
461
diff
changeset
|
30 struct mlk_texture * |
457
04797b35565c
core: painter -> mlk_painter
David Demelier <markand@malikania.fr>
parents:
445
diff
changeset
|
31 mlk_painter_get_target(void) |
41
3996f873a54b
core: implement walksprite, closes #2455
David Demelier <markand@malikania.fr>
parents:
28
diff
changeset
|
32 { |
3996f873a54b
core: implement walksprite, closes #2455
David Demelier <markand@malikania.fr>
parents:
28
diff
changeset
|
33 return renderer; |
3996f873a54b
core: implement walksprite, closes #2455
David Demelier <markand@malikania.fr>
parents:
28
diff
changeset
|
34 } |
3996f873a54b
core: implement walksprite, closes #2455
David Demelier <markand@malikania.fr>
parents:
28
diff
changeset
|
35 |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
36 void |
472
bc5483849614
core: texture -> mlk_texture
David Demelier <markand@malikania.fr>
parents:
461
diff
changeset
|
37 mlk_painter_set_target(struct mlk_texture *tex) |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
38 { |
41
3996f873a54b
core: implement walksprite, closes #2455
David Demelier <markand@malikania.fr>
parents:
28
diff
changeset
|
39 renderer = tex; |
485
3ff1fe64d0cd
core: window -> mlk_window
David Demelier <markand@malikania.fr>
parents:
472
diff
changeset
|
40 SDL_SetRenderTarget(MLK__RENDERER(), tex ? tex->handle : NULL); |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
41 } |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
42 |
46
b815621df3e3
core: remove all fixed width integers, closes #2460
David Demelier <markand@malikania.fr>
parents:
41
diff
changeset
|
43 unsigned long |
457
04797b35565c
core: painter -> mlk_painter
David Demelier <markand@malikania.fr>
parents:
445
diff
changeset
|
44 mlk_painter_get_color(void) |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
45 { |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
46 Uint8 r = 0, g = 0, b = 0, a = 0; |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
47 |
485
3ff1fe64d0cd
core: window -> mlk_window
David Demelier <markand@malikania.fr>
parents:
472
diff
changeset
|
48 SDL_GetRenderDrawColor(MLK__RENDERER(), &r, &g, &b, &a); |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
49 |
461
d7874f11565f
core: color -> mlk_color
David Demelier <markand@malikania.fr>
parents:
457
diff
changeset
|
50 return MLK_COLOR_HEX(r, g, b, a); |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
51 } |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
52 |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
53 void |
457
04797b35565c
core: painter -> mlk_painter
David Demelier <markand@malikania.fr>
parents:
445
diff
changeset
|
54 mlk_painter_set_color(unsigned long color) |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
55 { |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
56 SDL_SetRenderDrawColor( |
485
3ff1fe64d0cd
core: window -> mlk_window
David Demelier <markand@malikania.fr>
parents:
472
diff
changeset
|
57 MLK__RENDERER(), |
461
d7874f11565f
core: color -> mlk_color
David Demelier <markand@malikania.fr>
parents:
457
diff
changeset
|
58 MLK_COLOR_R(color), |
d7874f11565f
core: color -> mlk_color
David Demelier <markand@malikania.fr>
parents:
457
diff
changeset
|
59 MLK_COLOR_G(color), |
d7874f11565f
core: color -> mlk_color
David Demelier <markand@malikania.fr>
parents:
457
diff
changeset
|
60 MLK_COLOR_B(color), |
d7874f11565f
core: color -> mlk_color
David Demelier <markand@malikania.fr>
parents:
457
diff
changeset
|
61 MLK_COLOR_A(color) |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
62 ); |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
63 } |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
64 |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
65 void |
457
04797b35565c
core: painter -> mlk_painter
David Demelier <markand@malikania.fr>
parents:
445
diff
changeset
|
66 mlk_painter_draw_line(int x1, int y1, int x2, int y2) |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
67 { |
613 | 68 SDL_RenderLine(MLK__RENDERER(), x1, y1, x2, y2); |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
69 } |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
70 |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
71 void |
457
04797b35565c
core: painter -> mlk_painter
David Demelier <markand@malikania.fr>
parents:
445
diff
changeset
|
72 mlk_painter_draw_point(int x1, int y1) |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
73 { |
613 | 74 SDL_RenderPoint(MLK__RENDERER(), x1, y1); |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
75 } |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
76 |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
77 void |
457
04797b35565c
core: painter -> mlk_painter
David Demelier <markand@malikania.fr>
parents:
445
diff
changeset
|
78 mlk_painter_draw_rectangle(int x, int y, unsigned int width, unsigned int height) |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
79 { |
613 | 80 const SDL_FRect rect = { |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
81 .w = width, |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
82 .h = height, |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
83 .x = x, |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
84 .y = y |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
85 }; |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
86 |
485
3ff1fe64d0cd
core: window -> mlk_window
David Demelier <markand@malikania.fr>
parents:
472
diff
changeset
|
87 SDL_RenderFillRect(MLK__RENDERER(), &rect); |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
88 } |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
89 |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
90 void |
457
04797b35565c
core: painter -> mlk_painter
David Demelier <markand@malikania.fr>
parents:
445
diff
changeset
|
91 mlk_painter_draw_circle(int x, int y, int radius) |
106
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
97
diff
changeset
|
92 { |
566
d307f93d79af
core: doxygenize painter
David Demelier <markand@malikania.fr>
parents:
485
diff
changeset
|
93 double dx; |
d307f93d79af
core: doxygenize painter
David Demelier <markand@malikania.fr>
parents:
485
diff
changeset
|
94 |
106
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
97
diff
changeset
|
95 for (double dy = 1; dy <= radius; dy += 1.0) { |
566
d307f93d79af
core: doxygenize painter
David Demelier <markand@malikania.fr>
parents:
485
diff
changeset
|
96 dx = floor(sqrt((2.0 * radius * dy) - (dy * dy))); |
106
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
97
diff
changeset
|
97 |
613 | 98 SDL_RenderLine(MLK__RENDERER(), x - dx, y + dy - radius, x + dx, y + dy - radius); |
99 SDL_RenderLine(MLK__RENDERER(), x - dx, y - dy + radius, x + dx, y - dy + radius); | |
106
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
97
diff
changeset
|
100 } |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
97
diff
changeset
|
101 } |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
97
diff
changeset
|
102 |
ed1a6bb02a78
inventory_dialog: use a small circle as test
David Demelier <markand@malikania.fr>
parents:
97
diff
changeset
|
103 void |
457
04797b35565c
core: painter -> mlk_painter
David Demelier <markand@malikania.fr>
parents:
445
diff
changeset
|
104 mlk_painter_clear(void) |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
105 { |
485
3ff1fe64d0cd
core: window -> mlk_window
David Demelier <markand@malikania.fr>
parents:
472
diff
changeset
|
106 SDL_RenderClear(MLK__RENDERER()); |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
107 } |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
108 |
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
109 void |
457
04797b35565c
core: painter -> mlk_painter
David Demelier <markand@malikania.fr>
parents:
445
diff
changeset
|
110 mlk_painter_present(void) |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
111 { |
485
3ff1fe64d0cd
core: window -> mlk_window
David Demelier <markand@malikania.fr>
parents:
472
diff
changeset
|
112 SDL_RenderPresent(MLK__RENDERER()); |
28
783841af4033
core: implement painter API, closes #2451 @1h
David Demelier <markand@malikania.fr>
parents:
diff
changeset
|
113 } |