1 /***************************************************************************
2 * *
3 * LinuxSampler - modular, streaming capable sampler *
4 * *
5 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 * Copyright (C) 2005 - 2020 Christian Schoenebeck *
7 * *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
12 * *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
17 * *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the Free Software *
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21 * MA 02111-1307 USA *
22 ***************************************************************************/
23
24 // Allow to avoid inclusion of config.h
25 // (we used it for the _old_ xcode project file to avoid inclusion of
26 // config.h here and rather used our manually maintained version.h)
27 #ifndef OVERRIDE_CONFIG_H
28 # include <config.h>
29 #endif
30
31 #include <stdlib.h>
32 #include <stdarg.h>
33 #include <stdio.h>
34 #include <string>
35 #if !defined(WIN32)
36 # include <execinfo.h> // for backtrace() and backtrace_symbols()
37 #endif
38 #if defined (__APPLE__)
39 # include <mach-o/dyld.h>
40 #endif
41
42 // Make sure all mandatory configuration macros are defined.
43 // We don't care about optional configuration macros though.
44 #ifndef CONFIG_GLOBAL_ATTENUATION_DEFAULT
45 # error "Configuration macro CONFIG_GLOBAL_ATTENUATION_DEFAULT not defined!"
46 #endif // CONFIG_GLOBAL_ATTENUATION_DEFAULT
47 #ifndef CONFIG_MAX_PITCH
48 # error "Configuration macro CONFIG_MAX_PITCH not defined!"
49 #endif // CONFIG_MAX_PITCH
50 #ifndef CONFIG_MAX_EVENTS_PER_FRAGMENT
51 # error "Configuration macro CONFIG_MAX_EVENTS_PER_FRAGMENT not defined!"
52 #endif // CONFIG_MAX_EVENTS_PER_FRAGMENT
53 #ifndef CONFIG_EG_BOTTOM
54 # error "Configuration macro CONFIG_EG_BOTTOM not defined!"
55 #endif // CONFIG_EG_BOTTOM
56 #ifndef CONFIG_EG_MIN_RELEASE_TIME
57 # error "Configuration macro CONFIG_EG_MIN_RELEASE_TIME not defined!"
58 #endif // CONFIG_EG_MIN_RELEASE_TIME
59 #ifndef CONFIG_REFILL_STREAMS_PER_RUN
60 # error "Configuration macro CONFIG_REFILL_STREAMS_PER_RUN not defined!"
61 #endif // CONFIG_REFILL_STREAMS_PER_RUN
62 #ifndef CONFIG_STREAM_MIN_REFILL_SIZE
63 # error "Configuration macro CONFIG_STREAM_MIN_REFILL_SIZE not defined!"
64 #endif // CONFIG_STREAM_MIN_REFILL_SIZE
65 #ifndef CONFIG_STREAM_MAX_REFILL_SIZE
66 # error "Configuration macro CONFIG_STREAM_MAX_REFILL_SIZE not defined!"
67 #endif // CONFIG_STREAM_MAX_REFILL_SIZE
68 #ifndef CONFIG_STREAM_BUFFER_SIZE
69 # error "Configuration macro CONFIG_STREAM_BUFFER_SIZE not defined!"
70 #endif // CONFIG_STREAM_BUFFER_SIZE
71 #ifndef CONFIG_DEFAULT_MAX_STREAMS
72 # error "Configuration macro CONFIG_DEFAULT_MAX_STREAMS not defined!"
73 #endif // CONFIG_DEFAULT_MAX_STREAMS
74 #ifndef CONFIG_DEFAULT_MAX_VOICES
75 # error "Configuration macro CONFIG_DEFAULT_MAX_VOICES not defined!"
76 #endif // CONFIG_DEFAULT_MAX_VOICES
77 #ifndef CONFIG_DEFAULT_SUBFRAGMENT_SIZE
78 # error "Configuration macro CONFIG_DEFAULT_SUBFRAGMENT_SIZE not defined!"
79 #endif // CONFIG_DEFAULT_SUBFRAGMENT_SIZE
80 #ifndef CONFIG_VOICE_STEAL_ALGO
81 # error "Configuration macro CONFIG_VOICE_STEAL_ALGO not defined!"
82 #endif // CONFIG_VOICE_STEAL_ALGO
83 #ifndef CONFIG_SYSEX_BUFFER_SIZE
84 # error "Configuration macro CONFIG_SYSEX_BUFFER_SIZE not defined!"
85 #endif // CONFIG_SYSEX_BUFFER_SIZE
86 #ifndef CONFIG_FILTER_CUTOFF_MIN
87 # error "Configuration macro CONFIG_FILTER_CUTOFF_MIN not defined!"
88 #endif // CONFIG_FILTER_CUTOFF_MIN
89 #ifndef CONFIG_FILTER_CUTOFF_MAX
90 # error "Configuration macro CONFIG_FILTER_CUTOFF_MAX not defined!"
91 #endif // CONFIG_FILTER_CUTOFF_MAX
92 #ifndef CONFIG_PORTAMENTO_TIME_MIN
93 # error "Configuration macro CONFIG_PORTAMENTO_TIME_MIN not defined!"
94 #endif // CONFIG_PORTAMENTO_TIME_MIN
95 #ifndef CONFIG_PORTAMENTO_TIME_MAX
96 # error "Configuration macro CONFIG_PORTAMENTO_TIME_MAX not defined!"
97 #endif // CONFIG_PORTAMENTO_TIME_MAX
98 #ifndef CONFIG_PORTAMENTO_TIME_DEFAULT
99 # error "Configuration macro CONFIG_PORTAMENTO_TIME_DEFAULT not defined!"
100 #endif // CONFIG_PORTAMENTO_TIME_DEFAULT
101
102 // this is the sampler global volume coefficient that should be obeyed by all
103 // sampler engine implementations
104 double GLOBAL_VOLUME = CONFIG_GLOBAL_ATTENUATION_DEFAULT;
105
106 // this is the sampler global setting for maximum voices
107 int GLOBAL_MAX_VOICES = CONFIG_DEFAULT_MAX_VOICES;
108
109 // this is the sampler global setting for maximum disk streams
110 int GLOBAL_MAX_STREAMS = CONFIG_DEFAULT_MAX_STREAMS;
111
112 //TODO: (hopefully) just a temporary nasty hack for launching gigedit on the main thread on Mac (see comments in gigedit.cpp for details)
113 #if defined(__APPLE__)
114 bool g_mainThreadCallbackSupported = false;
115 void (*g_mainThreadCallback)(void* info) = 0;
116 void* g_mainThreadCallbackInfo = 0;
117 bool g_fireMainThreadCallback = false;
118 #endif
119
hexToNumber(char hex_digit)120 int hexToNumber(char hex_digit) {
121 switch (hex_digit) {
122 case '0': return 0;
123 case '1': return 1;
124 case '2': return 2;
125 case '3': return 3;
126 case '4': return 4;
127 case '5': return 5;
128 case '6': return 6;
129 case '7': return 7;
130 case '8': return 8;
131 case '9': return 9;
132
133 case 'a': return 10;
134 case 'b': return 11;
135 case 'c': return 12;
136 case 'd': return 13;
137 case 'e': return 14;
138 case 'f': return 15;
139
140 case 'A': return 10;
141 case 'B': return 11;
142 case 'C': return 12;
143 case 'D': return 13;
144 case 'E': return 14;
145 case 'F': return 15;
146
147 default: return 0; //TODO: we might want to throw an exception here
148 }
149 }
150
hexsToNumber(char hex_digit0,char hex_digit1)151 int hexsToNumber(char hex_digit0, char hex_digit1) {
152 return hexToNumber(hex_digit1)*16 + hexToNumber(hex_digit0);
153 }
154
155 #if defined (__APPLE__)
156
dyldImagesAsString()157 static std::string dyldImagesAsString() {
158 std::string s;
159 const uint32_t n = _dyld_image_count();
160 for (uint32_t i = 0; i < n; ++i) {
161 const std::string name = _dyld_get_image_name(i);
162
163 // ignore system frameworks
164 // (as we don't have their source files anyway, do we?)
165 if (name.find("/System/Library/") == 0)
166 continue;
167 if (name.find("/usr/lib/") != std::string::npos)
168 continue;
169
170 const intptr_t slide = _dyld_get_image_vmaddr_slide(i);
171 const struct mach_header* loadaddr = _dyld_get_image_header(i);
172 char* cs = NULL;
173 asprintf(&cs, "%d. '%s' loadaddr %p, slide %p\n", i+1, name.c_str(), loadaddr, (void*)slide);
174 s += cs;
175 free(cs);
176 }
177 return s;
178 }
179
180 #endif
181
182 /** @brief Return a backtrace of call.
183 *
184 * Calling this function will return the calling stack as text representation
185 * for debugging purposes.
186 */
backtraceAsString()187 std::string backtraceAsString() {
188 std::string s;
189 #ifdef WIN32
190 //TODO: Windows implementation using CaptureStackBackTrace() (plus maybe SymFromAddr())
191 s = "not implemented";
192 #else
193 # ifdef __APPLE__
194 s += dyldImagesAsString();
195 s += " \n\n";
196 # endif
197 const size_t bufSz = 1024;
198 void* array[bufSz];
199 const size_t sz = backtrace(array, bufSz);
200 char** strings = backtrace_symbols(array, sz);
201 for (int i = 0; i < sz; ++i) {
202 s += strings[i];
203 s += "\n";
204 }
205 free(strings);
206 #endif
207 return s;
208 }
209