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annotate src/font.c @ 53:2e3a1945728e

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make: build in debug for now
author David Demelier <markand@malikania.fr>
date Sat, 18 Jan 2020 08:44:53 +0100
parents b815621df3e3
children
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1 /*
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2 * font.c -- basic font management
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3 *
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4 * Copyright (c) 2020 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #include <assert.h>
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20 #include <stdbool.h>
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21 #include <stdio.h>
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22
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23 #include <SDL_ttf.h>
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24
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25 #include "color.h"
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26 #include "error.h"
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27 #include "error_p.h"
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28 #include "font.h"
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29 #include "texture_p.h"
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30 #include "util.h"
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31
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32 struct font {
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33 TTF_Font *handle;
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34 };
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35
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36 struct font *
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37 font_openf(const char *path, unsigned int size)
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38 {
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39 assert(path);
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40
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41 struct font *f;
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42
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43 f = ecalloc(1, sizeof (struct font));
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44
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45 if (!(f->handle = TTF_OpenFont(path, size))) {
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46 error_sdl();
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47 free(f);
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48 return NULL;
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49 }
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50
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51 return f;
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52 }
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53
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54 struct font *
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55 font_openb(const void *buffer, size_t buflen, unsigned int size)
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56 {
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57 assert(buffer);
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58
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59 struct font *f;
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60 SDL_RWops *ops;
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61
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62 f = ecalloc(1, sizeof (struct font));
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64 if (!(ops = SDL_RWFromConstMem(buffer, buflen)) ||
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65 (!(f->handle = TTF_OpenFontRW(ops, true, size)))) {
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66 error_sdl();
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67 free(f);
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68 return NULL;
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69 }
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71 return f;
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72 }
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73
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74 struct texture *
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75 font_render(struct font *font, const char *text, unsigned long color)
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76 {
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77 assert(font);
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78 assert(text);
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79
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80 SDL_Color fg = {
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81 .r = COLOR_R(color),
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82 .g = COLOR_G(color),
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83 .b = COLOR_B(color),
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84 .a = COLOR_A(color)
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85 };
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86
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87 SDL_Surface *surface;
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88
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89 if (!(surface = TTF_RenderUTF8_Blended(font->handle, text, fg))) {
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90 error_sdl();
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91 return NULL;
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92 }
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93
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94 return texture_from_surface(surface);
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95 }
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96
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97 void
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98 font_close(struct font *font)
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99 {
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100 assert(font);
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101
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102 TTF_CloseFont(font->handle);
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103 free(font);
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104 }