1 /***************************************************************************/ |
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2 /* */ |
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3 /* ftdebug.c */ |
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4 /* */ |
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5 /* Debugging and logging component for WinCE (body). */ |
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6 /* */ |
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7 /* Copyright 1996-2001, 2002, 2005, 2008, 2009 by */ |
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8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
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9 /* */ |
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10 /* This file is part of the FreeType project, and may only be used, */ |
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11 /* modified, and distributed under the terms of the FreeType project */ |
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12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
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13 /* this file you indicate that you have read the license and */ |
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14 /* understand and accept it fully. */ |
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15 /* */ |
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16 /***************************************************************************/ |
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17 |
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18 |
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19 /*************************************************************************/ |
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20 /* */ |
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21 /* This component contains various macros and functions used to ease the */ |
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22 /* debugging of the FreeType engine. Its main purpose is in assertion */ |
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23 /* checking, tracing, and error detection. */ |
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24 /* */ |
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25 /* There are now three debugging modes: */ |
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26 /* */ |
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27 /* - trace mode */ |
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28 /* */ |
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29 /* Error and trace messages are sent to the log file (which can be the */ |
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30 /* standard error output). */ |
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31 /* */ |
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32 /* - error mode */ |
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33 /* */ |
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34 /* Only error messages are generated. */ |
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35 /* */ |
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36 /* - release mode: */ |
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37 /* */ |
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38 /* No error message is sent or generated. The code is free from any */ |
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39 /* debugging parts. */ |
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40 /* */ |
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41 /*************************************************************************/ |
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42 |
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43 |
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44 #include <ft2build.h> |
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45 #include FT_INTERNAL_DEBUG_H |
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46 |
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47 |
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48 #ifdef FT_DEBUG_LEVEL_ERROR |
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49 |
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50 |
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51 #include <stdarg.h> |
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52 #include <stdlib.h> |
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53 #include <string.h> |
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54 |
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55 #include <windows.h> |
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56 |
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57 |
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58 void |
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59 OutputDebugStringEx( const char* str ) |
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60 { |
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61 static WCHAR buf[8192]; |
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62 |
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63 |
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64 int sz = MultiByteToWideChar( CP_ACP, 0, str, -1, buf, |
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65 sizeof ( buf ) / sizeof ( *buf ) ); |
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66 if ( !sz ) |
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67 lstrcpyW( buf, L"OutputDebugStringEx: MultiByteToWideChar failed" ); |
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68 |
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69 OutputDebugStringW( buf ); |
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70 } |
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71 |
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72 |
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73 FT_BASE_DEF( void ) |
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74 FT_Message( const char* fmt, ... ) |
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75 { |
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76 static char buf[8192]; |
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77 va_list ap; |
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78 |
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79 |
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80 va_start( ap, fmt ); |
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81 vprintf( fmt, ap ); |
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82 /* send the string to the debugger as well */ |
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83 vsprintf( buf, fmt, ap ); |
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84 OutputDebugStringEx( buf ); |
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85 va_end( ap ); |
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86 } |
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87 |
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88 |
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89 FT_BASE_DEF( void ) |
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90 FT_Panic( const char* fmt, ... ) |
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91 { |
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92 static char buf[8192]; |
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93 va_list ap; |
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94 |
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95 |
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96 va_start( ap, fmt ); |
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97 vsprintf( buf, fmt, ap ); |
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98 OutputDebugStringEx( buf ); |
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99 va_end( ap ); |
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100 |
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101 exit( EXIT_FAILURE ); |
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102 } |
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103 |
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104 |
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105 #ifdef FT_DEBUG_LEVEL_TRACE |
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106 |
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107 |
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108 /* array of trace levels, initialized to 0 */ |
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109 int ft_trace_levels[trace_count]; |
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110 |
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111 /* define array of trace toggle names */ |
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112 #define FT_TRACE_DEF( x ) #x , |
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113 |
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114 static const char* ft_trace_toggles[trace_count + 1] = |
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115 { |
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116 #include FT_INTERNAL_TRACE_H |
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117 NULL |
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118 }; |
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119 |
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120 #undef FT_TRACE_DEF |
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121 |
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122 |
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123 /*************************************************************************/ |
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124 /* */ |
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125 /* Initialize the tracing sub-system. This is done by retrieving the */ |
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126 /* value of the "FT2_DEBUG" environment variable. It must be a list of */ |
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127 /* toggles, separated by spaces, `;' or `,'. Example: */ |
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128 /* */ |
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129 /* "any:3 memory:6 stream:5" */ |
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130 /* */ |
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131 /* This will request that all levels be set to 3, except the trace level */ |
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132 /* for the memory and stream components which are set to 6 and 5, */ |
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133 /* respectively. */ |
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134 /* */ |
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135 /* See the file <freetype/internal/fttrace.h> for details of the */ |
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136 /* available toggle names. */ |
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137 /* */ |
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138 /* The level must be between 0 and 6; 0 means quiet (except for serious */ |
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139 /* runtime errors), and 6 means _very_ verbose. */ |
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140 /* */ |
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141 FT_BASE_DEF( void ) |
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142 ft_debug_init( void ) |
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143 { |
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144 /* Windows Mobile doesn't have environment API: */ |
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145 /* GetEnvironmentStrings, GetEnvironmentVariable, getenv. */ |
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146 /* */ |
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147 /* FIXME!!! How to set debug mode? */ |
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148 |
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149 /* const char* ft2_debug = getenv( "FT2_DEBUG" ); */ |
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150 |
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151 const char* ft2_debug = 0; |
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152 |
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153 |
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154 if ( ft2_debug ) |
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155 { |
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156 const char* p = ft2_debug; |
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157 const char* q; |
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158 |
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159 |
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160 for ( ; *p; p++ ) |
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161 { |
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162 /* skip leading whitespace and separators */ |
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163 if ( *p == ' ' || *p == '\t' || *p == ',' || *p == ';' || *p == '=' ) |
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164 continue; |
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165 |
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166 /* read toggle name, followed by ':' */ |
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167 q = p; |
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168 while ( *p && *p != ':' ) |
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169 p++; |
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170 |
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171 if ( *p == ':' && p > q ) |
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172 { |
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173 int n, i, len = p - q; |
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174 int level = -1, found = -1; |
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175 |
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176 |
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177 for ( n = 0; n < trace_count; n++ ) |
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178 { |
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179 const char* toggle = ft_trace_toggles[n]; |
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180 |
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181 |
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182 for ( i = 0; i < len; i++ ) |
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183 { |
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184 if ( toggle[i] != q[i] ) |
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185 break; |
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186 } |
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187 |
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188 if ( i == len && toggle[i] == 0 ) |
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189 { |
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190 found = n; |
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191 break; |
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192 } |
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193 } |
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194 |
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195 /* read level */ |
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196 p++; |
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197 if ( *p ) |
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198 { |
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199 level = *p++ - '0'; |
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200 if ( level < 0 || level > 7 ) |
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201 level = -1; |
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202 } |
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203 |
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204 if ( found >= 0 && level >= 0 ) |
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205 { |
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206 if ( found == trace_any ) |
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207 { |
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208 /* special case for "any" */ |
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209 for ( n = 0; n < trace_count; n++ ) |
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210 ft_trace_levels[n] = level; |
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211 } |
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212 else |
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213 ft_trace_levels[found] = level; |
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214 } |
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215 } |
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216 } |
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217 } |
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218 } |
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219 |
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220 |
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221 #else /* !FT_DEBUG_LEVEL_TRACE */ |
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222 |
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223 |
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224 FT_BASE_DEF( void ) |
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225 ft_debug_init( void ) |
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226 { |
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227 /* nothing */ |
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228 } |
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229 |
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230 |
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231 #endif /* !FT_DEBUG_LEVEL_TRACE */ |
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232 |
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233 #endif /* FT_DEBUG_LEVEL_ERROR */ |
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234 |
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235 |
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236 /* END */ |
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