1 | /************************************************************************* |
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2 | * * |
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3 | * Open Dynamics Engine, Copyright (C) 2001,2002 Russell L. Smith. * |
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4 | * All rights reserved. Email: russ@q12.org Web: www.q12.org * |
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5 | * * |
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6 | * This library is free software; you can redistribute it and/or * |
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7 | * modify it under the terms of EITHER: * |
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8 | * (1) The GNU Lesser General Public License as published by the Free * |
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9 | * Software Foundation; either version 2.1 of the License, or (at * |
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10 | * your option) any later version. The text of the GNU Lesser * |
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11 | * General Public License is included with this library in the * |
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12 | * file LICENSE.TXT. * |
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13 | * (2) The BSD-style license that is included with this library in * |
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14 | * the file LICENSE-BSD.TXT. * |
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15 | * * |
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16 | * This library is distributed in the hope that it will be useful, * |
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17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the files * |
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19 | * LICENSE.TXT and LICENSE-BSD.TXT for more details. * |
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20 | * * |
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21 | *************************************************************************/ |
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22 | |
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23 | // Platform-specific code for Mac OS X using Carbon+AGL |
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24 | // |
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25 | // Created using x11.cpp and the window-initialization -routines from GLFW |
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26 | // as reference. |
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27 | // Not thoroughly tested and is certain to contain deficiencies and bugs |
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28 | |
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29 | #include <ode/config.h> |
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30 | #include <stdlib.h> |
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31 | #include <string.h> |
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32 | #include <stdarg.h> |
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33 | |
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34 | #ifdef HAVE_SYS_TIME_H |
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35 | #include <sys/time.h> |
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36 | #endif |
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37 | |
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38 | #include <drawstuff/drawstuff.h> |
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39 | #include <drawstuff/version.h> |
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40 | #include "internal.h" |
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41 | |
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42 | #include <Carbon/Carbon.h> |
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43 | #include <AGL/agl.h> |
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44 | |
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45 | // Global variables |
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46 | |
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47 | static bool running = true; // 1 if simulation running |
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48 | static bool paused = false; // 1 if in `pause' mode |
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49 | static bool singlestep = false; // 1 if single step key pressed |
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50 | static bool writeframes = false; // 1 if frame files to be written |
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51 | |
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52 | static int windowWidth = -1; |
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53 | static int windowHeight = -1; |
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54 | static UInt32 modifierMask = 0; |
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55 | static int mouseButtonMode = 0; |
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56 | static bool mouseWithOption = false; // Set if dragging the mouse with alt pressed |
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57 | static bool mouseWithControl = false; // Set if dragging the mouse with ctrl pressed |
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58 | |
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59 | static dsFunctions* functions = NULL; |
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60 | static WindowRef windowReference; |
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61 | static AGLContext aglContext; |
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62 | |
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63 | static EventHandlerUPP mouseUPP = NULL; |
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64 | static EventHandlerUPP keyboardUPP = NULL; |
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65 | static EventHandlerUPP windowUPP = NULL; |
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66 | |
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67 | // Describes the window-events we are interested in |
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68 | EventTypeSpec OSX_WINDOW_EVENT_TYPES[] = { |
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69 | { kEventClassWindow, kEventWindowBoundsChanged }, |
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70 | { kEventClassWindow, kEventWindowClose }, |
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71 | { kEventClassWindow, kEventWindowDrawContent } |
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72 | }; |
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73 | |
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74 | // Describes the mouse-events we are interested in |
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75 | EventTypeSpec OSX_MOUSE_EVENT_TYPES[] = { |
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76 | { kEventClassMouse, kEventMouseDown }, |
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77 | { kEventClassMouse, kEventMouseUp }, |
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78 | { kEventClassMouse, kEventMouseMoved }, |
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79 | { kEventClassMouse, kEventMouseDragged } |
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80 | }; |
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81 | |
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82 | // Describes the key-events we are interested in |
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83 | EventTypeSpec OSX_KEY_EVENT_TYPES[] = { |
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84 | { kEventClassKeyboard, kEventRawKeyDown }, |
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85 | // { kEventClassKeyboard, kEventRawKeyUp }, |
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86 | { kEventClassKeyboard, kEventRawKeyModifiersChanged } |
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87 | }; |
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88 | |
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89 | //*************************************************************************** |
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90 | // error handling for unix |
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91 | |
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92 | static void printMessage (char *msg1, char *msg2, va_list ap) |
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93 | { |
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94 | fflush (stderr); |
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95 | fflush (stdout); |
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96 | fprintf (stderr,"\n%s: ",msg1); |
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97 | vfprintf (stderr,msg2,ap); |
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98 | fprintf (stderr,"\n"); |
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99 | fflush (stderr); |
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100 | } |
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101 | |
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102 | extern "C" void dsError (char *msg, ...) |
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103 | { |
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104 | va_list ap; |
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105 | va_start (ap,msg); |
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106 | printMessage ("Error",msg,ap); |
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107 | exit (1); |
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108 | } |
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109 | |
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110 | |
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111 | extern "C" void dsDebug (char *msg, ...) |
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112 | { |
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113 | va_list ap; |
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114 | va_start (ap,msg); |
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115 | printMessage ("INTERNAL ERROR",msg,ap); |
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116 | // *((char *)0) = 0; ... commit SEGVicide ? |
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117 | abort(); |
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118 | } |
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119 | |
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120 | extern "C" void dsPrint (char *msg, ...) |
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121 | { |
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122 | va_list ap; |
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123 | va_start (ap,msg); |
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124 | vprintf (msg,ap); |
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125 | } |
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126 | |
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127 | static void captureFrame( int num ){ |
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128 | |
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129 | fprintf( stderr,"\rcapturing frame %04d", num ); |
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130 | unsigned char buffer[windowWidth*windowHeight][3]; |
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131 | glReadPixels( 0, 0, windowWidth, windowHeight, GL_RGB, GL_UNSIGNED_BYTE, &buffer ); |
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132 | char s[100]; |
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133 | sprintf (s,"frame%04d.ppm",num); |
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134 | FILE *f = fopen (s,"wb"); |
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135 | if( !f ){ |
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136 | dsError( "can't open \"%s\" for writing", s ); |
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137 | } |
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138 | fprintf( f,"P6\n%d %d\n255\n", windowWidth, windowHeight ); |
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139 | for( int y=windowHeight-1; y>-1; y-- ){ |
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140 | fwrite( buffer[y*windowWidth], 3*windowWidth, 1, f ); |
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141 | } |
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142 | fclose (f); |
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143 | } |
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144 | |
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145 | extern "C" void dsStop(){ |
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146 | |
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147 | running = false; |
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148 | } |
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149 | |
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150 | extern "C" double dsElapsedTime() |
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151 | { |
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152 | #if HAVE_GETTIMEOFDAY |
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153 | static double prev=0.0; |
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154 | timeval tv ; |
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155 | |
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156 | gettimeofday(&tv, 0); |
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157 | double curr = tv.tv_sec + (double) tv.tv_usec / 1000000.0 ; |
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158 | if (!prev) |
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159 | prev=curr; |
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160 | double retval = curr-prev; |
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161 | prev=curr; |
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162 | if (retval>1.0) retval=1.0; |
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163 | if (retval<dEpsilon) retval=dEpsilon; |
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164 | return retval; |
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165 | #else |
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166 | return 0.01666; // Assume 60 fps |
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167 | #endif |
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168 | } |
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169 | |
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170 | OSStatus osxKeyEventHandler( EventHandlerCallRef handlerCallRef, EventRef event, void *userData ){ |
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171 | |
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172 | UInt32 keyCode; |
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173 | UInt32 state = 0; |
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174 | void* KCHR = NULL; |
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175 | char charCode = 0; |
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176 | char uppercase = 0; |
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177 | |
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178 | switch( GetEventKind( event ) ){ |
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179 | case kEventRawKeyDown: |
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180 | if( GetEventParameter( event, kEventParamKeyCode, typeUInt32, NULL, sizeof( UInt32 ), NULL, &keyCode ) != noErr ){ |
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181 | break; |
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182 | } |
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183 | KCHR = (void *)GetScriptVariable( smCurrentScript, smKCHRCache ); |
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184 | charCode = (char)KeyTranslate( KCHR, keyCode, &state ); |
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185 | uppercase = charCode; |
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186 | UppercaseText( &uppercase, 1, smSystemScript ); |
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187 | //printf( "Character %d [%c] [%c] modifiers [%d]\n", charCode, charCode, uppercase, modifierMask ); |
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188 | |
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189 | if( modifierMask == 0 ){ |
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190 | if( charCode >= ' ' && charCode <= 126 && functions -> command ){ |
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191 | functions -> command( charCode ); |
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192 | } |
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193 | } |
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194 | else if( ( modifierMask & controlKey ) ){ |
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195 | // ctrl+key was pressed |
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196 | switch(uppercase ){ |
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197 | case 'T': |
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198 | dsSetTextures( !dsGetTextures() ); |
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199 | break; |
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200 | case 'S': |
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201 | dsSetShadows( !dsGetShadows() ); |
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202 | break; |
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203 | case 'X': |
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204 | running = false; |
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205 | break; |
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206 | case 'P': |
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207 | paused = !paused; |
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208 | singlestep = false; |
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209 | break; |
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210 | case 'O': |
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211 | if( paused ){ |
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212 | singlestep = true; |
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213 | } |
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214 | break; |
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215 | case 'V': { |
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216 | float xyz[3],hpr[3]; |
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217 | dsGetViewpoint( xyz,hpr ); |
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218 | printf( "Viewpoint = (%.4f,%.4f,%.4f,%.4f,%.4f,%.4f)\n", xyz[0], xyz[1], xyz[2], hpr[0], hpr[1], hpr[2] ); |
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219 | break; |
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220 | } |
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221 | case 'W': |
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222 | writeframes = !writeframes; |
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223 | if( writeframes ){ |
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224 | printf( "Now writing frames to PPM files\n" ); |
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225 | } |
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226 | break; |
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227 | } |
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228 | |
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229 | } |
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230 | return noErr; |
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231 | case kEventRawKeyModifiersChanged: |
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232 | if( GetEventParameter( event, kEventParamKeyModifiers, typeUInt32, NULL, sizeof( UInt32 ), NULL, &modifierMask ) == noErr ){ |
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233 | if( ( mouseWithOption && !( modifierMask & optionKey ) ) || ( mouseWithControl && !( modifierMask & controlKey ) ) ){ |
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234 | // The mouse was being dragged using either the command-key or the option-key modifier to emulate |
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235 | // the right button or both left + right. |
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236 | // Now the modifier-key has been released so the mouseButtonMode must be changed accordingly |
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237 | // The following releases the right-button. |
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238 | mouseButtonMode &= (~4); |
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239 | mouseWithOption = false; |
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240 | mouseWithControl = false; |
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241 | } |
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242 | return noErr; |
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243 | } |
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244 | break; |
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245 | } |
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246 | return eventNotHandledErr; |
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247 | } |
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248 | |
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249 | OSStatus osxMouseEventHandler( EventHandlerCallRef handlerCallRef, EventRef event, void *userData ){ |
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250 | |
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251 | bool buttonDown = false; |
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252 | HIPoint mouseLocation; |
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253 | |
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254 | switch( GetEventKind( event ) ){ |
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255 | |
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256 | case kEventMouseDown: |
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257 | buttonDown = true; |
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258 | case kEventMouseUp: |
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259 | if( GetEventParameter( event, kEventParamWindowMouseLocation, typeHIPoint, NULL, sizeof( HIPoint ), NULL, &mouseLocation ) != noErr ){ |
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260 | break; |
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261 | } |
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262 | EventMouseButton button; |
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263 | if( GetEventParameter( event, kEventParamMouseButton, typeMouseButton, NULL, sizeof( EventMouseButton ), NULL, &button ) == noErr ){ |
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264 | |
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265 | if( button == kEventMouseButtonPrimary ){ |
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266 | if( modifierMask & controlKey ){ |
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267 | // Ctrl+button == right |
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268 | button = kEventMouseButtonSecondary; |
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269 | mouseWithControl = true; |
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270 | } |
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271 | else if( modifierMask & optionKey ){ |
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272 | // Alt+button == left+right |
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273 | mouseButtonMode = 5; |
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274 | mouseWithOption = true; |
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275 | return noErr; |
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276 | } |
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277 | } |
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278 | if( buttonDown ){ |
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279 | if( button == kEventMouseButtonPrimary ) mouseButtonMode |= 1; // Left |
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280 | if( button == kEventMouseButtonTertiary ) mouseButtonMode |= 2; // Middle |
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281 | if( button == kEventMouseButtonSecondary ) mouseButtonMode |= 4; // Right |
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282 | } |
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283 | else{ |
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284 | if( button == kEventMouseButtonPrimary ) mouseButtonMode &= (~1); // Left |
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285 | if( button == kEventMouseButtonTertiary ) mouseButtonMode &= (~2); // Middle |
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286 | if( button == kEventMouseButtonSecondary ) mouseButtonMode &= (~4);// Right |
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287 | } |
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288 | return noErr; |
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289 | } |
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290 | break; |
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291 | case kEventMouseMoved: |
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292 | // NO-OP |
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293 | return noErr; |
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294 | case kEventMouseDragged: |
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295 | // Carbon provides mouse-position deltas, so we don't have to store the old state ourselves |
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296 | if( GetEventParameter( event, kEventParamMouseDelta, typeHIPoint, NULL, sizeof( HIPoint ), NULL, &mouseLocation ) == noErr ){ |
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297 | //printf( "Mode %d\n", mouseButtonMode ); |
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298 | dsMotion( mouseButtonMode, (int)mouseLocation.x, (int)mouseLocation.y ); |
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299 | return noErr; |
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300 | } |
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301 | break; |
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302 | case kEventMouseWheelMoved: |
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303 | // NO-OP |
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304 | break; |
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305 | } |
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306 | return eventNotHandledErr; |
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307 | } |
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308 | |
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309 | static void osxCloseMainWindow(){ |
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310 | |
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311 | if( windowUPP != NULL ){ |
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312 | DisposeEventHandlerUPP( windowUPP ); |
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313 | windowUPP = NULL; |
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314 | } |
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315 | |
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316 | if( aglContext != NULL ){ |
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317 | aglSetCurrentContext( NULL ); |
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318 | aglSetDrawable( aglContext, NULL ); |
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319 | aglDestroyContext( aglContext ); |
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320 | aglContext = NULL; |
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321 | } |
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322 | |
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323 | if( windowReference != NULL ){ |
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324 | ReleaseWindow( windowReference ); |
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325 | windowReference = NULL; |
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326 | } |
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327 | } |
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328 | |
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329 | OSStatus osxWindowEventHandler( EventHandlerCallRef handlerCallRef, EventRef event, void *userData ){ |
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330 | |
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331 | //printf( "WindowEvent\n" ); |
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332 | switch( GetEventKind(event) ){ |
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333 | case kEventWindowBoundsChanged: |
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334 | WindowRef window; |
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335 | GetEventParameter( event, kEventParamDirectObject, typeWindowRef, NULL, sizeof(WindowRef), NULL, &window ); |
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336 | Rect rect; |
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337 | GetWindowPortBounds( window, &rect ); |
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338 | windowWidth = rect.right; |
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339 | windowHeight = rect.bottom; |
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340 | aglUpdateContext( aglContext ); |
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341 | break; |
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342 | case kEventWindowClose: |
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343 | osxCloseMainWindow(); |
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344 | exit( 0 ); |
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345 | return noErr; |
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346 | case kEventWindowDrawContent: |
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347 | // NO-OP |
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348 | break; |
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349 | } |
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350 | |
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351 | return eventNotHandledErr; |
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352 | } |
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353 | |
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354 | static void osxCreateMainWindow( int width, int height ){ |
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355 | |
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356 | int redbits = 4; |
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357 | int greenbits = 4; |
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358 | int bluebits = 4; |
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359 | int alphabits = 4; |
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360 | int depthbits = 16; |
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361 | |
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362 | OSStatus error; |
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363 | |
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364 | // create pixel format attribute list |
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365 | |
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366 | GLint pixelFormatAttributes[256]; |
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367 | int numAttrs = 0; |
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368 | |
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369 | pixelFormatAttributes[numAttrs++] = AGL_RGBA; |
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370 | pixelFormatAttributes[numAttrs++] = AGL_DOUBLEBUFFER; |
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371 | |
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372 | pixelFormatAttributes[numAttrs++] = AGL_RED_SIZE; |
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373 | pixelFormatAttributes[numAttrs++] = redbits; |
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374 | pixelFormatAttributes[numAttrs++] = AGL_GREEN_SIZE; |
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375 | pixelFormatAttributes[numAttrs++] = greenbits; |
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376 | pixelFormatAttributes[numAttrs++] = AGL_BLUE_SIZE; |
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377 | pixelFormatAttributes[numAttrs++] = bluebits; |
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378 | pixelFormatAttributes[numAttrs++] = AGL_ALPHA_SIZE; |
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379 | pixelFormatAttributes[numAttrs++] = alphabits; |
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380 | pixelFormatAttributes[numAttrs++] = AGL_DEPTH_SIZE; |
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381 | pixelFormatAttributes[numAttrs++] = depthbits; |
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382 | |
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383 | pixelFormatAttributes[numAttrs++] = AGL_NONE; |
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384 | |
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385 | // create pixel format. |
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386 | |
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387 | AGLDevice mainMonitor = GetMainDevice(); |
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388 | AGLPixelFormat pixelFormat = aglChoosePixelFormat( &mainMonitor, 1, pixelFormatAttributes ); |
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389 | if( pixelFormat == NULL ){ |
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390 | return; |
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391 | } |
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392 | |
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393 | aglContext = aglCreateContext( pixelFormat, NULL ); |
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394 | |
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395 | aglDestroyPixelFormat( pixelFormat ); |
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396 | |
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397 | if( aglContext == NULL ){ |
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398 | osxCloseMainWindow(); |
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399 | return; |
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400 | } |
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401 | |
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402 | Rect windowContentBounds; |
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403 | windowContentBounds.left = 0; |
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404 | windowContentBounds.top = 0; |
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405 | windowContentBounds.right = width; |
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406 | windowContentBounds.bottom = height; |
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407 | |
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408 | int windowAttributes = kWindowCloseBoxAttribute |
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409 | | kWindowFullZoomAttribute |
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410 | | kWindowCollapseBoxAttribute |
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411 | | kWindowResizableAttribute |
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412 | | kWindowStandardHandlerAttribute |
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413 | | kWindowLiveResizeAttribute; |
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414 | |
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415 | error = CreateNewWindow( kDocumentWindowClass, windowAttributes, &windowContentBounds, &windowReference ); |
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416 | if( ( error != noErr ) || ( windowReference == NULL ) ){ |
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417 | osxCloseMainWindow(); |
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418 | return; |
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419 | } |
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420 | |
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421 | windowUPP = NewEventHandlerUPP( osxWindowEventHandler ); |
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422 | |
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423 | error = InstallWindowEventHandler( windowReference, windowUPP,GetEventTypeCount( OSX_WINDOW_EVENT_TYPES ), OSX_WINDOW_EVENT_TYPES, NULL, NULL ); |
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424 | if( error != noErr ){ |
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425 | osxCloseMainWindow(); |
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426 | return; |
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427 | } |
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428 | |
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429 | // The process-type must be changed for a ForegroundApplication |
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430 | // Unless it is a foreground-process, the application will not show in the dock or expose and the window |
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431 | // will not behave properly. |
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432 | ProcessSerialNumber currentProcess; |
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433 | GetCurrentProcess( ¤tProcess ); |
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434 | TransformProcessType( ¤tProcess, kProcessTransformToForegroundApplication ); |
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435 | SetFrontProcess( ¤tProcess ); |
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436 | |
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437 | SetWindowTitleWithCFString( windowReference, CFSTR( "ODE - Drawstuff" ) ); |
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438 | RepositionWindow( windowReference, NULL, kWindowCenterOnMainScreen ); |
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439 | |
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440 | ShowWindow( windowReference ); |
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441 | |
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442 | if( !aglSetDrawable( aglContext, GetWindowPort( windowReference ) ) ){ |
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443 | osxCloseMainWindow(); |
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444 | return; |
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445 | } |
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446 | |
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447 | if( !aglSetCurrentContext( aglContext ) ){ |
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448 | osxCloseMainWindow(); |
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449 | } |
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450 | |
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451 | windowWidth = width; |
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452 | windowHeight = height; |
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453 | } |
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454 | |
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455 | int osxInstallEventHandlers(){ |
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456 | |
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457 | OSStatus error; |
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458 | |
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459 | mouseUPP = NewEventHandlerUPP( osxMouseEventHandler ); |
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460 | |
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461 | error = InstallEventHandler( GetApplicationEventTarget(), mouseUPP, GetEventTypeCount( OSX_MOUSE_EVENT_TYPES ), OSX_MOUSE_EVENT_TYPES, NULL, NULL ); |
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462 | if( error != noErr ){ |
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463 | return GL_FALSE; |
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464 | } |
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465 | |
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466 | keyboardUPP = NewEventHandlerUPP( osxKeyEventHandler ); |
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467 | |
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468 | error = InstallEventHandler( GetApplicationEventTarget(), keyboardUPP, GetEventTypeCount( OSX_KEY_EVENT_TYPES ), OSX_KEY_EVENT_TYPES, NULL, NULL ); |
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469 | if( error != noErr ){ |
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470 | return GL_FALSE; |
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471 | } |
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472 | |
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473 | return GL_TRUE; |
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474 | } |
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475 | |
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476 | extern void dsPlatformSimLoop( int givenWindowWidth, int givenWindowHeight, dsFunctions *fn, int givenPause ){ |
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477 | |
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478 | functions = fn; |
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479 | |
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480 | paused = givenPause; |
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481 | |
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482 | osxCreateMainWindow( givenWindowWidth, givenWindowHeight ); |
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483 | osxInstallEventHandlers(); |
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484 | |
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485 | dsStartGraphics( windowWidth, windowHeight, fn ); |
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486 | |
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487 | static bool firsttime=true; |
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488 | if( firsttime ) |
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489 | { |
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490 | fprintf |
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491 | ( |
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492 | stderr, |
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493 | "\n" |
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494 | "Simulation test environment v%d.%02d\n" |
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495 | " Ctrl-P : pause / unpause (or say `-pause' on command line).\n" |
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496 | " Ctrl-O : single step when paused.\n" |
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497 | " Ctrl-T : toggle textures (or say `-notex' on command line).\n" |
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498 | " Ctrl-S : toggle shadows (or say `-noshadow' on command line).\n" |
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499 | " Ctrl-V : print current viewpoint coordinates (x,y,z,h,p,r).\n" |
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500 | " Ctrl-W : write frames to ppm files: frame/frameNNN.ppm\n" |
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501 | " Ctrl-X : exit.\n" |
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502 | "\n" |
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503 | "Change the camera position by clicking + dragging in the window.\n" |
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504 | " Left button - pan and tilt.\n" |
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505 | " Right button (or Ctrl + button) - forward and sideways.\n" |
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506 | " Left + Right button (or middle button, or Alt + button) - sideways and up.\n" |
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507 | "\n",DS_VERSION >> 8,DS_VERSION & 0xff |
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508 | ); |
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509 | firsttime = false; |
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510 | } |
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511 | |
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512 | if( fn -> start ) fn->start(); |
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513 | |
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514 | int frame = 1; |
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515 | running = true; |
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516 | while( running ){ |
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517 | // read in and process all pending events for the main window |
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518 | EventRef event; |
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519 | EventTargetRef eventDispatcher = GetEventDispatcherTarget(); |
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520 | while( ReceiveNextEvent( 0, NULL, 0.0, TRUE, &event ) == noErr ){ |
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521 | SendEventToEventTarget( event, eventDispatcher ); |
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522 | ReleaseEvent( event ); |
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523 | } |
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524 | |
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525 | dsDrawFrame( windowWidth, windowHeight, fn, paused && !singlestep ); |
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526 | singlestep = false; |
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527 | |
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528 | glFlush(); |
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529 | aglSwapBuffers( aglContext ); |
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530 | |
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531 | // capture frames if necessary |
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532 | if( !paused && writeframes ){ |
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533 | captureFrame( frame ); |
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534 | frame++; |
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535 | } |
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536 | } |
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537 | |
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538 | if( fn->stop ) fn->stop(); |
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539 | dsStopGraphics(); |
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540 | |
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541 | osxCloseMainWindow(); |
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542 | } |
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