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annotate src/libmlk-core/core/sys.c @ 419:1b4e61bdb9ab

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core: introduce err.h
author David Demelier <markand@malikania.fr>
date Wed, 12 Oct 2022 15:06:18 +0200
parents d74f53299252
children 7d2ebc334c8c
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1 /*
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2 * sys.c -- system routines
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3 *
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4 * Copyright (c) 2020-2022 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 "config.h"
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20
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21 #include <sys/stat.h>
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22 #include <assert.h>
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23 #include <errno.h>
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24 #include <stdio.h>
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25 #include <stdlib.h>
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26 #include <string.h>
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27 #include <limits.h>
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28
241
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29 #if defined(_WIN32)
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30 # include <shlwapi.h>
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31 # include <windows.h>
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32 #else
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33 # include <errno.h>
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34 # include <string.h>
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35 #endif
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36
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37 #include <SDL.h>
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38 #include <SDL_image.h>
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39 #include <SDL_ttf.h>
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40
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41 #include <sndfile.h>
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42
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43 #include <port/port.h>
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44
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45 #include "alloc.h"
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46 #include "error.h"
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47 #include "panic.h"
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48 #include "sound.h"
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49 #include "sys.h"
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50 #include "sys_p.h"
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51
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52 ALCdevice *audio_dev = NULL;
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53 ALCcontext *audio_ctx = NULL;
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54
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55 static struct {
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56 char organization[128];
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57 char name[128];
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58 } info = {
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59 .organization = "fr.malikania",
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60 .name = "molko"
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61 };
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62
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63 static inline char *
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64 normalize(char *str)
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65 {
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66 for (char *p = str; *p; ++p)
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67 if (*p == '\\')
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68 *p = '/';
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69
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70 return str;
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71 }
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72
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73 static const char *
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74 user_directory(enum sys_dir kind)
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75 {
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76 /* Kept for future use. */
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77 (void)kind;
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78
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79 static char path[PATH_MAX];
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80 char *pref;
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81
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82 if ((pref = SDL_GetPrefPath(info.organization, info.name))) {
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83 port_strlcpy(path, pref, sizeof (path));
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84 SDL_free(pref);
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85 } else
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86 port_strlcpy(path, "./", sizeof (path));
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87
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88 return path;
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89 }
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90
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91 static inline int
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92 mkpath(const char *path)
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93 {
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94 #ifdef _WIN32
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95 /* TODO: add error using the convenient FormatMessage function. */
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96 if (!CreateDirectoryA(path, NULL) && GetLastError() != ERROR_ALREADY_EXISTS)
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97 return errorf("unable to create directory: %s", path);
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98 #else
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99 if (mkdir(path, 0755) < 0 && errno != EEXIST)
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100 return errorf("%s", strerror(errno));
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101 #endif
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102
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103 return 0;
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104 }
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105
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106 int
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107 sys_init(const char *organization, const char *name)
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108 {
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109 #if defined(__MINGW64__)
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110 /* On MinGW buffering leads to painful debugging. */
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111 setbuf(stderr, NULL);
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112 setbuf(stdout, NULL);
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113 #endif
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114
411
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115 /* Kept for future use. */
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116 (void)organization;
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117 (void)name;
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118
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119 /* SDL2. */
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120 if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) < 0)
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121 return errorf("%s", SDL_GetError());
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122 if (IMG_Init(IMG_INIT_PNG) != IMG_INIT_PNG)
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123 return errorf("%s", SDL_GetError());
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124 if (TTF_Init() < 0)
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125 return errorf("%s", SDL_GetError());
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126
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127 /* OpenAL. */
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128 #if defined(_WIN32)
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129 SetEnvironmentVariable("ALSOFT_LOGLEVEL", "0");
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130 #else
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131 putenv("ALSOFT_LOGLEVEL=0");
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132 #endif
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133
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134 if (!(audio_dev = alcOpenDevice(NULL)))
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135 return errorf("unable to create audio device");
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136 if (!(audio_ctx = alcCreateContext(audio_dev, NULL)))
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137 return errorf("unable to create audio context");
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138
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139 alcMakeContextCurrent(audio_ctx);
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140
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141 return 0;
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142 }
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143
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144 const char *
241
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David Demelier <markand@malikania.fr>
parents: 204
diff changeset
145 sys_dir(enum sys_dir kind)
32
91bc2329ab0c core: implement data directory access, closes #2454 @1h
David Demelier <markand@malikania.fr>
parents: 31
diff changeset
146 {
411
d74f53299252 make: add basic GNU make support
David Demelier <markand@malikania.fr>
parents: 394
diff changeset
147 return user_directory(kind);
84
a6c2067709ce core: implement basic save routines, closes #2476 @2h
David Demelier <markand@malikania.fr>
parents: 59
diff changeset
148 }
a6c2067709ce core: implement basic save routines, closes #2476 @2h
David Demelier <markand@malikania.fr>
parents: 59
diff changeset
149
298
196264679079 misc: remove usage of bool
David Demelier <markand@malikania.fr>
parents: 279
diff changeset
150 int
255
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
151 sys_mkdir(const char *directory)
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
152 {
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
153 char path[PATH_MAX], *p;
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
154
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
155 /* Copy the directory to normalize and iterate over '/'. */
348
7d7991f97acf misc: be more barebone portable
David Demelier <markand@malikania.fr>
parents: 320
diff changeset
156 port_strlcpy(path, directory, sizeof (path));
255
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
157 normalize(path);
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
158
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
159 #if defined(_WIN32)
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
160 /* Remove drive letter that we don't need. */
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
161 if ((p = strchr(path, ':')))
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
162 ++p;
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
163 else
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
164 p = path;
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
165 #else
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
166 p = path;
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
167 #endif
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
168
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
169 for (p = p + 1; *p; ++p) {
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
170 if (*p == '/') {
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
171 *p = 0;
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
172
298
196264679079 misc: remove usage of bool
David Demelier <markand@malikania.fr>
parents: 279
diff changeset
173 if (mkpath(path) < 0)
196264679079 misc: remove usage of bool
David Demelier <markand@malikania.fr>
parents: 279
diff changeset
174 return -1;
255
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
175
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
176 *p = '/';
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
177 }
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
178 }
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
179
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
180 return mkpath(path);
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
181 }
d987a5fc4a3e core: add sys_mkdir function
David Demelier <markand@malikania.fr>
parents: 243
diff changeset
182
23
bc9637a2601b core: add basic system routines
David Demelier <markand@malikania.fr>
parents:
diff changeset
183 void
97
58133933ea17 window: expose some data to avoid functions
David Demelier <markand@malikania.fr>
parents: 87
diff changeset
184 sys_finish(void)
23
bc9637a2601b core: add basic system routines
David Demelier <markand@malikania.fr>
parents:
diff changeset
185 {
bc9637a2601b core: add basic system routines
David Demelier <markand@malikania.fr>
parents:
diff changeset
186 TTF_Quit();
bc9637a2601b core: add basic system routines
David Demelier <markand@malikania.fr>
parents:
diff changeset
187 IMG_Quit();
bc9637a2601b core: add basic system routines
David Demelier <markand@malikania.fr>
parents:
diff changeset
188 SDL_Quit();
379
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
189
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
190 alcMakeContextCurrent(NULL);
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
191
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
192 if (audio_ctx) {
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
193 alcDestroyContext(audio_ctx);
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
194 audio_ctx = NULL;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
195 }
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
196 if (audio_dev) {
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
197 alcCloseDevice(audio_dev);
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
198 audio_dev = NULL;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
199 }
23
bc9637a2601b core: add basic system routines
David Demelier <markand@malikania.fr>
parents:
diff changeset
200 }
379
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
201
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
202 struct audiostream *
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
203 audiostream_create(SNDFILE *file, const SF_INFO *info)
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
204 {
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
205 struct audiostream *stream;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
206
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
207 stream = alloc_new(sizeof (*stream));
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
208 stream->samplerate = info->samplerate;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
209 stream->samplesz = info->frames * info->channels;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
210 stream->samples = alloc_array(stream->samplesz, sizeof (*stream->samples));
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
211 stream->format = info->channels == 1 ? AL_FORMAT_MONO16 : AL_FORMAT_STEREO16;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
212
380
31e2f6d35c34 core: fix sndfile distortion issue
David Demelier <markand@malikania.fr>
parents: 379
diff changeset
213 sf_command(file, SFC_SET_SCALE_FLOAT_INT_READ, NULL, SF_TRUE);
31e2f6d35c34 core: fix sndfile distortion issue
David Demelier <markand@malikania.fr>
parents: 379
diff changeset
214
379
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
215 if (sf_read_short(file, stream->samples, stream->samplesz) != stream->samplesz) {
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
216 free(stream->samples);
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
217 free(stream);
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
218 stream = NULL;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
219 }
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
220
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
221 alGenBuffers(1, &stream->buffer);
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
222 alBufferData(stream->buffer, stream->format, stream->samples,
380
31e2f6d35c34 core: fix sndfile distortion issue
David Demelier <markand@malikania.fr>
parents: 379
diff changeset
223 stream->samplesz * sizeof (*stream->samples), stream->samplerate);
379
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
224 alGenSources(1, &stream->source);
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
225 alSourcei(stream->source, AL_BUFFER, stream->buffer);
411
d74f53299252 make: add basic GNU make support
David Demelier <markand@malikania.fr>
parents: 394
diff changeset
226
379
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
227 sf_close(file);
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
228
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
229 return stream;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
230 }
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
231
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
232 struct audiostream *
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
233 audiostream_open(const char *path)
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
234 {
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
235 assert(path);
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
236
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
237 SF_INFO info;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
238 SNDFILE *file;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
239
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
240 if (!(file = sf_open(path, SFM_READ, &info)))
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
241 return NULL;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
242
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
243 return audiostream_create(file, &info);
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
244 }
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
245
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
246 struct viodata {
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
247 const unsigned char *data;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
248 const size_t datasz;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
249 sf_count_t offset;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
250 };
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
251
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
252 static sf_count_t
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
253 vio_get_filelen(void *data)
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
254 {
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
255 const struct viodata *vio = data;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
256
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
257 return (sf_count_t)vio->datasz;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
258 }
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
259
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
260 static sf_count_t
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
261 vio_seek(sf_count_t offset, int whence, void *data)
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
262 {
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
263 struct viodata *vio = data;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
264
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
265 switch (whence) {
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
266 case SEEK_SET:
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
267 vio->offset = offset;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
268 break;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
269 case SEEK_CUR:
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
270 vio->offset += offset;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
271 break;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
272 case SEEK_END:
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
273 vio->offset = vio->datasz - offset;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
274 break;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
275 default:
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
276 break;
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
277 }
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
278
67c1c46af2c8 core: replace SDL2_mixer with OpenAL, closes #2528 @3h
David Demelier <markand@malikania.fr>
parents: 378
diff changeset
279 return vio->offset;
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280 }
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281
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282 static sf_count_t
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283 vio_read(void *ptr, sf_count_t count, void *data)
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284 {
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285 struct viodata *vio = data;
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286
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287 memcpy(ptr, vio->data + vio->offset, count);
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288 vio->offset += count;
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289
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290 return count;
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291 }
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292
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293 static sf_count_t
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294 vio_tell(void *data)
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295 {
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296 const struct viodata *vio = data;
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297
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298 return vio->offset;
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299 }
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300
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301 struct audiostream *
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302 audiostream_openmem(const void *data, size_t datasz)
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303 {
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304 assert(data);
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305
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306 SF_VIRTUAL_IO io = {
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307 .get_filelen = vio_get_filelen,
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308 .seek = vio_seek,
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309 .read = vio_read,
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310 .tell = vio_tell
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311 };
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312 SF_INFO info;
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313 SNDFILE *file;
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314 struct viodata viodata = {
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315 .data = data,
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316 .datasz = datasz,
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317 };
411
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318
379
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319 if (!(file = sf_open_virtual(&io, SFM_READ, &info, &viodata)))
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320 return NULL;
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321
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322 return audiostream_create(file, &info);
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323 }
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324
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325 void
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326 audiostream_finish(struct audiostream *s)
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327 {
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328 assert(s);
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329
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330 alDeleteBuffers(1, &s->buffer);
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331 alSourcei(s->source, AL_BUFFER, 0);
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332 alDeleteSources(1, &s->source);
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333 }