Wed, 08 Nov 2023 21:46:29 +0100
add projection matrix to AscWindow
11 | 1 | /* |
2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
3 | * Copyright 2023 Mike Becker. 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 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * | |
11 | * 2. Redistributions in binary form must reproduce the above copyright | |
12 | * notice, this list of conditions and the following disclaimer in the | |
13 | * documentation and/or other materials provided with the distribution. | |
14 | * | |
15 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
16 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
18 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
19 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
20 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
21 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
22 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
23 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
24 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
25 | * POSSIBILITY OF SUCH DAMAGE. | |
26 | */ | |
27 | ||
28 | #include "ascension/font.h" | |
29 | #include "ascension/context.h" | |
30 | #include "ascension/error.h" | |
31 | ||
32 | static char const *asc_font_filename(enum AscFontStyle style) { | |
33 | // TODO: do not assume we are running from the program dir | |
34 | switch (style) { | |
35 | case ASC_FONT_REGULAR: | |
36 | return "fonts/OpenSans-Regular.ttf"; | |
37 | case ASC_FONT_BOLD: | |
38 | return "fonts/OpenSans-Bold.ttf"; | |
39 | case ASC_FONT_ITALIC: | |
40 | return "fonts/OpenSans-Italic.ttf"; | |
41 | case ASC_FONT_BOLD_ITALIC: | |
42 | return "fonts/OpenSans-BoldItalic.ttf"; | |
43 | } | |
44 | } | |
45 | ||
46 | AscFont const *asc_font(enum AscFontStyle style, int size) { | |
47 | for (unsigned int i = 0 ; i < asc_context.fonts_loaded ; i++) { | |
48 | AscFont *font = &asc_context.fonts[i]; | |
49 | if (font->size == size && font->style == style) { | |
50 | return font; | |
51 | } | |
52 | } | |
53 | ||
54 | if (asc_context.fonts_loaded == ASC_MAX_FONTS) { | |
55 | asc_dprintf("WARNING: Maximum number of fonts reached, wiping cache!"); | |
56 | asc_font_cache_clear(); | |
57 | } | |
58 | ||
59 | unsigned int slot = asc_context.fonts_loaded++; | |
60 | AscFont *font = &asc_context.fonts[slot]; | |
61 | font->size = size; | |
62 | font->style = style; | |
63 | font->ptr = TTF_OpenFont(asc_font_filename(style), size); | |
64 | if (font->ptr == NULL) { | |
65 | asc_context.fonts_loaded--; | |
66 | asc_error(TTF_GetError()); | |
67 | return NULL; | |
68 | } | |
69 | asc_dprintf("Loaded font size %u, style %u in slot %u", size, style, slot); | |
70 | return font; | |
71 | } | |
72 | ||
73 | void asc_font_cache_clear(void) { | |
74 | asc_dprintf("Fonts in cache that are being unloaded: %u", asc_context.fonts_loaded); | |
75 | while (asc_context.fonts_loaded > 0) { | |
76 | unsigned int i = --asc_context.fonts_loaded; | |
77 | AscFont *font = &asc_context.fonts[i]; | |
78 | TTF_CloseFont(font->ptr); | |
79 | font->ptr = NULL; | |
80 | } | |
81 | } | |
82 | ||
83 | AscFont const *asc_font_cache_validate(AscFont const *font) { | |
84 | if (font->ptr) { | |
85 | return font; | |
86 | } else { | |
87 | asc_dprintf("Cache miss for font size %u, style %u", font->size, font->style); | |
88 | return asc_font(font->style, font->size); | |
89 | } | |
90 | } |