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annotate src/SDL_log.c @ 5247:78ce7bfd0faf

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Better window parameter checking
author Sam Lantinga <slouken@libsdl.org>
date Thu, 10 Feb 2011 10:37:35 -0800
parents 1e28342cb15d
children b530ef003506
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /* Simple log messages in SDL */
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25
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26 #include "SDL_log.h"
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27
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28 #if HAVE_STDIO_H
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29 #include <stdio.h>
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30 #endif
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31
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32 #if defined(__WIN32__)
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33 #include "core/windows/SDL_windows.h"
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34 #elif defined(__ANDROID__)
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35 #include <android/log.h>
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36 #endif
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37
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38 #define DEFAULT_PRIORITY SDL_LOG_PRIORITY_CRITICAL
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39 #define DEFAULT_APPLICATION_PRIORITY SDL_LOG_PRIORITY_INFO
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40
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41 typedef struct SDL_LogLevel
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42 {
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43 int category;
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44 SDL_LogPriority priority;
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45 struct SDL_LogLevel *next;
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46 } SDL_LogLevel;
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47
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48 /* The default log output function */
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49 static void SDL_LogOutput(void *userdata,
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50 int category, SDL_LogPriority priority,
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51 const char *message);
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52
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53 static SDL_LogLevel *SDL_loglevels;
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54 static SDL_LogPriority SDL_application_priority = DEFAULT_APPLICATION_PRIORITY;
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55 static SDL_LogPriority SDL_default_priority = DEFAULT_PRIORITY;
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56 static SDL_LogOutputFunction SDL_log_function = SDL_LogOutput;
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57 static void *SDL_log_userdata = NULL;
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58
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59 static const char *SDL_priority_prefixes[SDL_NUM_LOG_PRIORITIES] = {
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60 NULL,
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61 "VERBOSE",
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62 "DEBUG",
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63 "INFO",
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64 "WARN",
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65 "ERROR",
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66 "CRITICAL"
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67 };
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68
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69 #ifdef __ANDROID__
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70 static const char *SDL_category_prefixes[SDL_LOG_CATEGORY_RESERVED1] = {
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71 "APP",
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72 "ERROR",
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73 "SYSTEM",
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74 "AUDIO",
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75 "VIDEO",
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76 "RENDER",
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77 "INPUT"
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78 };
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79
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80 static int SDL_android_priority[SDL_NUM_LOG_PRIORITIES] = {
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81 ANDROID_LOG_VERBOSE,
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82 ANDROID_LOG_DEBUG,
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83 ANDROID_LOG_INFO,
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84 ANDROID_LOG_WARN,
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85 ANDROID_LOG_ERROR,
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86 ANDROID_LOG_FATAL
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87 };
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88 #endif /* __ANDROID__ */
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89
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90
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91 void
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92 SDL_LogSetAllPriority(SDL_LogPriority priority)
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93 {
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94 SDL_LogLevel *entry;
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95
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96 for (entry = SDL_loglevels; entry; entry = entry->next) {
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97 entry->priority = priority;
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98 }
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99 SDL_application_priority = SDL_default_priority = priority;
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100 }
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101
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102 void
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103 SDL_LogSetPriority(int category, SDL_LogPriority priority)
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104 {
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105 SDL_LogLevel *entry;
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106
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107 for (entry = SDL_loglevels; entry; entry = entry->next) {
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108 if (entry->category == category) {
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109 entry->priority = priority;
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110 return;
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111 }
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112 }
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113
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114 /* Create a new entry */
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115 entry = (SDL_LogLevel *)SDL_malloc(sizeof(*entry));
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116 if (entry) {
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117 entry->category = category;
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118 entry->priority = priority;
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119 entry->next = SDL_loglevels;
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120 SDL_loglevels = entry;
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121 }
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122 }
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123
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124 SDL_LogPriority
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125 SDL_LogGetPriority(int category)
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126 {
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127 SDL_LogLevel *entry;
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128
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129 for (entry = SDL_loglevels; entry; entry = entry->next) {
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130 if (entry->category == category) {
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131 return entry->priority;
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132 }
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133 }
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134
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135 if (category == SDL_LOG_CATEGORY_APPLICATION) {
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136 return SDL_application_priority;
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137 } else {
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138 return SDL_default_priority;
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139 }
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140 }
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141
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142 void
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143 SDL_LogResetPriorities(void)
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144 {
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145 SDL_LogLevel *entry;
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146
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147 while (SDL_loglevels) {
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148 entry = SDL_loglevels;
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149 SDL_loglevels = entry->next;
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150 SDL_free(entry);
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151 }
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152
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153 SDL_application_priority = DEFAULT_APPLICATION_PRIORITY;
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154 SDL_default_priority = DEFAULT_PRIORITY;
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155 }
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156
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157 void
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158 SDL_Log(const char *fmt, ...)
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159 {
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160 va_list ap;
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161
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162 va_start(ap, fmt);
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163 SDL_LogMessageV(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO, fmt, ap);
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164 va_end(ap);
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165 }
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166
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167 void
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168 SDL_LogVerbose(int category, const char *fmt, ...)
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169 {
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170 va_list ap;
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171
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172 va_start(ap, fmt);
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173 SDL_LogMessageV(category, SDL_LOG_PRIORITY_VERBOSE, fmt, ap);
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174 va_end(ap);
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175 }
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176
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177 void
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178 SDL_LogInfo(int category, const char *fmt, ...)
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179 {
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180 va_list ap;
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181
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182 va_start(ap, fmt);
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183 SDL_LogMessageV(category, SDL_LOG_PRIORITY_INFO, fmt, ap);
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184 va_end(ap);
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185 }
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186
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187 void
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188 SDL_LogWarn(int category, const char *fmt, ...)
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189 {
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190 va_list ap;
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191
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192 va_start(ap, fmt);
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193 SDL_LogMessageV(category, SDL_LOG_PRIORITY_WARN, fmt, ap);
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194 va_end(ap);
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195 }
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196
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197 void
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198 SDL_LogError(int category, const char *fmt, ...)
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199 {
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200 va_list ap;
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201
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202 va_start(ap, fmt);
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203 SDL_LogMessageV(category, SDL_LOG_PRIORITY_ERROR, fmt, ap);
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204 va_end(ap);
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205 }
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206
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207 void
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208 SDL_LogCritical(int category, const char *fmt, ...)
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209 {
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210 va_list ap;
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211
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212 va_start(ap, fmt);
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213 SDL_LogMessageV(category, SDL_LOG_PRIORITY_CRITICAL, fmt, ap);
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214 va_end(ap);
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215 }
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216
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217 void
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218 SDL_LogMessage(int category, SDL_LogPriority priority, const char *fmt, ...)
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219 {
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220 va_list ap;
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221
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222 va_start(ap, fmt);
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223 SDL_LogMessageV(category, priority, fmt, ap);
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224 va_end(ap);
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225 }
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226
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227 #ifdef __ANDROID__
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228 static const char *
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229 GetCategoryPrefix(int category)
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230 {
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231 if (category < SDL_LOG_CATEGORY_RESERVED1) {
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232 return SDL_category_prefixes[category];
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233 }
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234 if (category < SDL_LOG_CATEGORY_CUSTOM) {
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235 return "RESERVED";
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236 }
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237 return "CUSTOM";
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238 }
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239 #endif /* __ANDROID__ */
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240
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241 void
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diff changeset
242 SDL_LogMessageV(int category, SDL_LogPriority priority, const char *fmt, va_list ap)
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243 {
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244 char *message;
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245
5240
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246 /* Nothing to do if we don't have an output function */
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diff changeset
247 if (!SDL_log_function) {
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248 return;
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249 }
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diff changeset
250
5226
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251 /* Make sure we don't exceed array bounds */
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252 if (priority < 0 || priority >= SDL_NUM_LOG_PRIORITIES) {
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diff changeset
253 return;
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254 }
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diff changeset
255
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parents:
diff changeset
256 /* See if we want to do anything with this message */
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parents:
diff changeset
257 if (priority < SDL_LogGetPriority(category)) {
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diff changeset
258 return;
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diff changeset
259 }
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diff changeset
260
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261 message = SDL_stack_alloc(char, SDL_MAX_LOG_MESSAGE);
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262 if (!message) {
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diff changeset
263 return;
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diff changeset
264 }
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diff changeset
265 SDL_vsnprintf(message, SDL_MAX_LOG_MESSAGE, fmt, ap);
5240
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266 SDL_log_function(SDL_log_userdata, category, priority, message);
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267 SDL_stack_free(message);
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268 }
5226
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269
5240
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diff changeset
270 static void
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diff changeset
271 SDL_LogOutput(void *userdata, int category, SDL_LogPriority priority,
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diff changeset
272 const char *message)
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diff changeset
273 {
5226
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diff changeset
274 #if defined(__WIN32__)
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diff changeset
275 /* Way too many allocations here, urgh */
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diff changeset
276 {
5228
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diff changeset
277 char *output;
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parents: 5226
diff changeset
278 size_t length;
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279 LPTSTR tstr;
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diff changeset
280
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diff changeset
281 length = SDL_strlen(SDL_priority_prefixes[priority]) + 2 + SDL_strlen(message) + 1;
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diff changeset
282 output = SDL_stack_alloc(char, length);
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diff changeset
283 SDL_snprintf(output, length, "%s: %s", SDL_priority_prefixes[priority], message);
5226
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diff changeset
284 tstr = WIN_UTF8ToString(output);
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parents:
diff changeset
285 OutputDebugString(tstr);
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diff changeset
286 SDL_free(tstr);
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diff changeset
287 SDL_stack_free(output);
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diff changeset
288 }
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parents:
diff changeset
289 #elif defined(__ANDROID__)
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parents:
diff changeset
290 {
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parents:
diff changeset
291 char tag[32];
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parents:
diff changeset
292
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parents:
diff changeset
293 SDL_snprintf(tag, SDL_arraysize(tag), "SDL/%s", GetCategoryPrefix(category));
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parents:
diff changeset
294 __android_log_write(SDL_android_priority[priority], tag, message);
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parents:
diff changeset
295 }
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parents:
diff changeset
296 #endif
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parents:
diff changeset
297 #if HAVE_STDIO_H
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diff changeset
298 fprintf(stderr, "%s: %s\n", SDL_priority_prefixes[priority], message);
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parents:
diff changeset
299 #endif
5240
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300 }
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parents: 5228
diff changeset
301
1e28342cb15d Added a way to replace the default logging mechanism
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parents: 5228
diff changeset
302 void
1e28342cb15d Added a way to replace the default logging mechanism
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parents: 5228
diff changeset
303 SDL_LogGetOutputFunction(SDL_LogOutputFunction *callback, void **userdata)
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parents: 5228
diff changeset
304 {
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parents: 5228
diff changeset
305 if (callback) {
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parents: 5228
diff changeset
306 *callback = SDL_log_function;
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parents: 5228
diff changeset
307 }
1e28342cb15d Added a way to replace the default logging mechanism
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parents: 5228
diff changeset
308 if (userdata) {
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parents: 5228
diff changeset
309 *userdata = SDL_log_userdata;
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diff changeset
310 }
1e28342cb15d Added a way to replace the default logging mechanism
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parents: 5228
diff changeset
311 }
1e28342cb15d Added a way to replace the default logging mechanism
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parents: 5228
diff changeset
312
1e28342cb15d Added a way to replace the default logging mechanism
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parents: 5228
diff changeset
313 void
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parents: 5228
diff changeset
314 SDL_LogSetOutputFunction(SDL_LogOutputFunction callback, void *userdata)
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parents: 5228
diff changeset
315 {
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parents: 5228
diff changeset
316 SDL_log_function = callback;
1e28342cb15d Added a way to replace the default logging mechanism
Sam Lantinga <slouken@libsdl.org>
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317 SDL_log_userdata = userdata;
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2ee8112bfc6b Added a simple log message API
Sam Lantinga <slouken@libsdl.org>
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318 }
2ee8112bfc6b Added a simple log message API
Sam Lantinga <slouken@libsdl.org>
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319
2ee8112bfc6b Added a simple log message API
Sam Lantinga <slouken@libsdl.org>
parents:
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320 /* vi: set ts=4 sw=4 expandtab: */