X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Ffreeglut_main.c;h=cc2aca015100bb02e11ab800545117936fee00a8;hb=7f224f1db5d7de7d2bce31c763d5eb8731fda6e7;hp=858116a7e11a5bd8080b3d44f1a4aa9fe19e4a34;hpb=fe89df7de1aa6a732a441e983cce03e1fd6fd81a;p=freeglut diff --git a/src/freeglut_main.c b/src/freeglut_main.c index 858116a..cc2aca0 100644 --- a/src/freeglut_main.c +++ b/src/freeglut_main.c @@ -34,6 +34,25 @@ #include "../include/GL/freeglut.h" #include "freeglut_internal.h" +#include +#if TARGET_HOST_UNIX_X11 +#include +#include +#include +#include +#include +#elif TARGET_HOST_WIN32 +#endif + +#ifndef MAX +#define MAX(a,b) (((a)>(b)) ? (a) : (b)) +#endif + +#ifndef MIN +#define MIN(a,b) (((a)<(b)) ? (a) : (b)) +#endif + + /* * TODO BEFORE THE STABLE RELEASE: * @@ -106,6 +125,8 @@ static void fghReshapeWindowByHandle ( HWND handle, int width, int height ) #endif { + SFG_Window *current_window = fgStructure.Window ; + /* * Find the window that received the reshape event */ @@ -142,6 +163,12 @@ static void fghReshapeWindowByHandle * we resize the window. */ window->State.Redisplay = TRUE ; + + /* + * If this is a menu, restore the active window + */ + if ( window->IsMenu ) + fgSetWindow ( current_window ) ; } /* @@ -157,6 +184,8 @@ static void fghcbDisplayWindow( SFG_Window *window, SFG_Enumerator *enumerator ) (window->State.Redisplay == TRUE) && (window->State.Visible == TRUE) ) { + SFG_Window *current_window = fgStructure.Window ; + /* * OKi, this is the case: have the window set as the current one */ @@ -171,6 +200,8 @@ static void fghcbDisplayWindow( SFG_Window *window, SFG_Enumerator *enumerator ) * And execute the display callback immediately after */ window->Callbacks.Display(); + + fgSetWindow ( current_window ) ; } #elif TARGET_HOST_WIN32 @@ -180,6 +211,8 @@ static void fghcbDisplayWindow( SFG_Window *window, SFG_Enumerator *enumerator ) */ if( window->State.NeedToResize ) { + SFG_Window *current_window = fgStructure.Window ; + fgSetWindow( window ); fghReshapeWindowByHandle( @@ -192,6 +225,8 @@ static void fghcbDisplayWindow( SFG_Window *window, SFG_Enumerator *enumerator ) * Never ever do that again: */ window->State.NeedToResize = FALSE; + + fgSetWindow ( current_window ) ; } /* @@ -249,7 +284,7 @@ static void fghcbCheckJoystickPolls( SFG_Window *window, SFG_Enumerator *enumera /* * Check if actually need to do the poll for the currently enumerated window: */ - if( window->State.JoystickLastPoll + window->State.JoystickPollRate >= checkTime ) + if( window->State.JoystickLastPoll + window->State.JoystickPollRate <= checkTime ) { /* * Yeah, that's it. Poll the joystick... @@ -301,9 +336,9 @@ static void fghCheckTimers( void ) /* * For every timer that is waiting for triggering */ - for( timer = fgState.Timers.First; timer; timer = next ) + for( timer = (SFG_Timer *)fgState.Timers.First; timer; timer = (SFG_Timer *)next ) { - next = timer->Node.Next; + next = (SFG_Timer *)timer->Node.Next; /* * Check for the timeout: @@ -313,7 +348,7 @@ static void fghCheckTimers( void ) /* * Add the timer to the timed out timers list */ - fgListRemove( &fgState.Timers, &timer->Node ); + fgListRemove( &fgState.Timers, &timer->Node ); fgListAppend( &timedOut, &timer->Node ); } } @@ -322,7 +357,7 @@ static void fghCheckTimers( void ) * Now feel free to execute all the hooked and timed out timer callbacks * And delete the timed out timers... */ - while ( (timer = timedOut.First) ) + while ( (timer = (SFG_Timer *)timedOut.First) ) { if( timer->Callback != NULL ) timer->Callback( timer->ID ); @@ -384,66 +419,117 @@ void fgWarning( const char *fmt, ... ) } /* - * Clean up on exit + * Indicates whether Joystick events are being used by ANY window. + * + * The current mechanism is to walk all of the windows and ask if + * there is a joystick callback. Certainly in some cases, maybe + * in all cases, the joystick is attached to the system and accessed + * from ONE point by GLUT/freeglut, so this is not the right way, + * in general, to do this. However, the Joystick code is segregated + * in its own little world, so we can't access the information that + * we need in order to do that nicely. + * + * Some alternatives: + * * Store Joystick data into freeglut global state. + * * Provide NON-static functions or data from Joystick *.c file. + * + * Basically, the RIGHT way to do this requires knowing something + * about the Joystick. Right now, the Joystick code is behind + * an opaque wall. + * */ -static void fgCleanUpGlutsMess( void ) +static void fgCheckJoystickCallback( SFG_Window* w, SFG_Enumerator* e) { - int i; - - i = 0; - - if ( fgStructure.Windows.First != NULL ) - { - SFG_Window *win = fgStructure.Windows.First ; - glEnd(); - glFinish(); - glFlush(); - while ( win != NULL ) + if( w->Callbacks.Joystick ) { - SFG_Window *temp_win = win->Node.Next ; - fgDestroyWindow ( win, FALSE ) ; - win = temp_win ; + e->found = TRUE; + e->data = w; } - } - -#if 0 - /* these are pointers to external handles */ - - __glutWindowListSize = 0; - __glutStaleWindowList = NULL; - __glutWindowList = NULL; - __glutCurrentWindow = NULL; - - /* make sure we no longer have a GL context */ - - if ( wglGetCurrentContext() != NULL ) - { - wglDeleteContext( wglGetCurrentContext() ); - } - - hInstance = GetModuleHandle(NULL); - UnregisterClass( classname, hInstance ); - - /* clean up allocated timer memory */ + fgEnumSubWindows( w, fgCheckJoystickCallback, e ); +} +static int fgHaveJoystick( void ) +{ + SFG_Enumerator enumerator; + enumerator.found = FALSE; + enumerator.data = NULL; + fgEnumWindows( fgCheckJoystickCallback, &enumerator ); + return !!enumerator.data; +} +static void fgHavePendingRedisplaysCallback( SFG_Window* w, SFG_Enumerator* e) +{ + if( w->State.Redisplay ) + { + e->found = TRUE; + e->data = w; + } + fgEnumSubWindows( w, fgHavePendingRedisplaysCallback, e ); +} +static int fgHavePendingRedisplays (void) +{ + SFG_Enumerator enumerator; + enumerator.found = FALSE; + enumerator.data = NULL; + fgEnumWindows( fgHavePendingRedisplaysCallback, &enumerator ); + return !!enumerator.data; +} +/* + * Indicates whether there are any outstanding timers. + */ +static int fgHaveTimers( void ) +{ + return !!fgState.Timers.First; +} +/* + * Returns the number of GLUT ticks (milliseconds) till the next timer event. + */ +static long fgNextTimer( void ) +{ + long now = fgElapsedTime(); + long ret = INT_MAX; + SFG_Timer *timer; - tList = __glutTimerList; - i = 0; + for( timer = (SFG_Timer *)fgState.Timers.First; + timer; + timer = (SFG_Timer *)timer->Node.Next ) + ret = MIN( ret, MAX( 0, (timer->TriggerTime) - now ) ); - while ( __glutTimerList ) - { - i++; - tList = __glutTimerList; + return ret; +} +/* + * Does the magic required to relinquish the CPU until something interesting + * happens. + */ +static void fgSleepForEvents( void ) +{ +#if TARGET_HOST_UNIX_X11 + fd_set fdset; + int err; + int socket; + struct timeval wait; + long msec; + + if( fgState.IdleCallback || + fgHavePendingRedisplays() ) + return; + socket = ConnectionNumber( fgDisplay.Display ); + FD_ZERO( &fdset ); + FD_SET( socket, &fdset ); + + msec = fgNextTimer(); + if( fgHaveJoystick() ) + msec = MIN( msec, 10 ); - if ( __glutTimerList ) - __glutTimerList = __glutTimerList->next; + wait.tv_sec = msec / 1000; + wait.tv_usec = (msec % 1000) * 1000; + err = select( socket+1, &fdset, NULL, NULL, &wait ); - if ( tList ) - free( tList ); - } + if( -1 == err ) + printf( "freeglut select() error: %d\n", errno ); + +#elif TARGET_HOST_WIN32 #endif } - /* -- INTERFACE FUNCTIONS -------------------------------------------------- */ /* @@ -470,7 +556,7 @@ void FGAPIENTRY glutMainLoopEvent( void ) /* * Do we have any event messages pending? */ - if( XPending( fgDisplay.Display ) ) + while( XPending( fgDisplay.Display ) ) { /* * Grab the next event to be processed... @@ -617,6 +703,11 @@ void FGAPIENTRY glutMainLoopEvent( void ) if( window->Callbacks.Entry != NULL ) { /* + * Set the current window + */ + fgSetWindow ( window ) ; + + /* * Yeah. Notify the window about having the mouse cursor over */ window->Callbacks.Entry( GLUT_ENTERED ); @@ -637,6 +728,11 @@ void FGAPIENTRY glutMainLoopEvent( void ) if( window->Callbacks.Entry != NULL ) { /* + * Set the current window + */ + fgSetWindow ( window ) ; + + /* * Yeah. Notify the window about having the mouse cursor over */ window->Callbacks.Entry( GLUT_LEFT ); @@ -656,12 +752,23 @@ void FGAPIENTRY glutMainLoopEvent( void ) */ if( window->ActiveMenu != NULL ) { + if ( window == window->ActiveMenu->ParentWindow ) + { + window->ActiveMenu->Window->State.MouseX = event.xmotion.x_root - window->ActiveMenu->X ; + window->ActiveMenu->Window->State.MouseY = event.xmotion.y_root - window->ActiveMenu->Y ; + } + /* * Let's make the window redraw as a result of the mouse motion. */ - window->State.Redisplay = TRUE ; + window->ActiveMenu->Window->State.Redisplay = TRUE ; - break; + /* + * Since the window is a menu, make the parent window current + */ + fgSetWindow ( window->ActiveMenu->ParentWindow ) ; + + break; /* I think this should stay in -- an active menu should absorb the mouse motion */ } /* @@ -680,7 +787,7 @@ void FGAPIENTRY glutMainLoopEvent( void ) /* * Set the current window */ - fgStructure.Window = window ; + fgSetWindow ( window ) ; /* * Yup. Have it executed immediately @@ -698,7 +805,7 @@ void FGAPIENTRY glutMainLoopEvent( void ) /* * Set the current window */ - fgStructure.Window = window ; + fgSetWindow ( window ) ; /* * That's right, and there is a passive callback, too. @@ -723,26 +830,15 @@ void FGAPIENTRY glutMainLoopEvent( void ) */ GETWINDOW( xbutton ); GETMOUSE( xbutton ); - /* - * GLUT API assumes that you can't have more than three mouse buttons, so: - */ - switch( event.xbutton.button ) - { - /* - * WARNING: this might be wrong, if we only have two mouse buttons, - * Button2 might mean the right button, isn't that right? - */ - case Button1: button = GLUT_LEFT_BUTTON; break; - case Button2: button = GLUT_MIDDLE_BUTTON; break; - case Button3: button = GLUT_RIGHT_BUTTON; break; - default: button = -1; break; - } - - /* - * Skip the unwanted mouse buttons... - */ - if( button == -1 ) - break; + /* + * An X button (at least in XFree86) is numbered from 1. + * A GLUT button is numbered from 0. + * Old GLUT passed through buttons other than just the first + * three, though it only gave symbolic names and official + * support to the first three. + * + */ + button = event.xbutton.button - 1; /* * Do not execute the application's mouse callback if a menu is hooked to this button. @@ -757,17 +853,24 @@ void FGAPIENTRY glutMainLoopEvent( void ) */ if ( window->ActiveMenu != NULL ) /* Window has an active menu, it absorbs any mouse click */ { - if ( fgCheckActiveMenu ( window, window->ActiveMenu ) == TRUE ) /* Inside the menu, invoke the callback and deactivate the menu*/ + if ( window == window->ActiveMenu->ParentWindow ) + { + window->ActiveMenu->Window->State.MouseX = event.xbutton.x_root - window->ActiveMenu->X ; + window->ActiveMenu->Window->State.MouseY = event.xbutton.y_root - window->ActiveMenu->Y ; + } + + if ( fgCheckActiveMenu ( window->ActiveMenu->Window, window->ActiveMenu ) == TRUE ) /* Inside the menu, invoke the callback and deactivate the menu*/ { /* Save the current window and menu and set the current window to the window whose menu this is */ SFG_Window *save_window = fgStructure.Window ; SFG_Menu *save_menu = fgStructure.Menu ; - fgSetWindow ( window ) ; + SFG_Window *parent_window = window->ActiveMenu->ParentWindow ; + fgSetWindow ( parent_window ) ; fgStructure.Menu = window->ActiveMenu ; /* Execute the menu callback */ fgExecuteMenuCallback ( window->ActiveMenu ) ; - fgDeactivateMenu ( window->ActiveMenu->ParentWindow ) ; + fgDeactivateMenu ( parent_window ) ; /* Restore the current window and menu */ fgSetWindow ( save_window ) ; @@ -789,7 +892,8 @@ void FGAPIENTRY glutMainLoopEvent( void ) /* * No active menu, let's check whether we need to activate one. */ - if ( ( window->Menu[ button ] != NULL ) && ( pressed == TRUE ) ) + if (( 0 <= button ) && ( 2 >= button ) && + ( window->Menu[ button ] != NULL ) && ( pressed == TRUE ) ) { /* * Let's make the window redraw as a result of the mouse click. @@ -812,10 +916,15 @@ void FGAPIENTRY glutMainLoopEvent( void ) /* * Check if there is a mouse callback hooked to the window */ - if( fgStructure.Window->Callbacks.Mouse == NULL ) + if( window->Callbacks.Mouse == NULL ) break; /* + * Set the current window + */ + fgSetWindow ( window ); + + /* * Remember the current modifiers state */ modifiers = 0; @@ -882,11 +991,6 @@ void FGAPIENTRY glutMainLoopEvent( void ) len = XLookupString( &event.xkey, asciiCode, sizeof(asciiCode), &keySym, &composeStatus ); /* - * Get ready to calling the keyboard/special callbacks - */ - fgSetWindow( window ); - - /* * GLUT API tells us to have two separate callbacks... */ if( len > 0 ) @@ -897,6 +1001,11 @@ void FGAPIENTRY glutMainLoopEvent( void ) if( keyboard_cb != NULL ) { /* + * Set the current window + */ + fgSetWindow( window ); + + /* * Remember the current modifiers state */ modifiers = 0; @@ -971,6 +1080,11 @@ void FGAPIENTRY glutMainLoopEvent( void ) if( (special_cb != NULL) && (special != -1) ) { /* + * Set the current window + */ + fgSetWindow( window ); + + /* * Remember the current modifiers state */ modifiers = 0; @@ -995,7 +1109,7 @@ void FGAPIENTRY glutMainLoopEvent( void ) break; } } - else + { /* * Have all the timers checked. @@ -1027,7 +1141,7 @@ void FGAPIENTRY glutMainLoopEvent( void ) /* * The windows processing is considerably smaller */ - if( PeekMessage( &stMsg, NULL, 0, 0, PM_NOREMOVE ) ) + while( PeekMessage( &stMsg, NULL, 0, 0, PM_NOREMOVE ) ) { /* * Grab the message now, checking for WM_QUIT @@ -1041,7 +1155,7 @@ void FGAPIENTRY glutMainLoopEvent( void ) TranslateMessage( &stMsg ); DispatchMessage( &stMsg ); } - else + { /* * Have all the timers checked. @@ -1079,7 +1193,7 @@ void FGAPIENTRY glutMainLoopEvent( void ) void FGAPIENTRY glutMainLoop( void ) { #if TARGET_HOST_WIN32 - SFG_Window *window = fgStructure.Windows.First ; + SFG_Window *window = (SFG_Window *)fgStructure.Windows.First ; #endif /* @@ -1099,9 +1213,23 @@ void FGAPIENTRY glutMainLoop( void ) while ( window != NULL ) { if ( window->Callbacks.Visibility != NULL ) + { + SFG_Window *current_window = fgStructure.Window ; + + /* + * Set the current window + */ + fgSetWindow( window ); + window->Callbacks.Visibility ( window->State.Visible ) ; - window = window->Node.Next ; + /* + * Restore the current window + */ + fgSetWindow( current_window ); + } + + window = (SFG_Window *)window->Node.Next ; } #endif @@ -1122,25 +1250,25 @@ void FGAPIENTRY glutMainLoop( void ) */ if ( fgStructure.Windows.First == NULL ) fgState.ExecState = GLUT_EXEC_STATE_STOP ; + else + fgSleepForEvents(); } + { + fgExecutionState execState = fgState.ActionOnWindowClose; - /* - * If we got here by the user closing a window or by the application closing down, there may still be windows open. - */ - fgCleanUpGlutsMess () ; - - /* - * Check whether we return to the calling program or simply exit - */ - if ( fgState.ActionOnWindowClose == GLUT_ACTION_EXIT ) - exit ( 0 ) ; + /* + * When this loop terminates, destroy the display, state and structure + * of a freeglut session, so that another glutInit() call can happen + */ + fgDeinitialize(); - /* - * When this loop terminates, destroy the display, state and structure - * of a freeglut session, so that another glutInit() call can happen - */ - fgDeinitialize(); + /* + * Check whether we return to the calling program or simply exit + */ + if ( execState == GLUT_ACTION_EXIT ) + exit ( 0 ) ; + } } /* @@ -1346,7 +1474,7 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara /* Step through the list of windows. If the rendering context is notbeing used * by another window, then we delete it. */ - for ( iter = fgStructure.Windows.First; iter; iter = iter->Node.Next ) + for ( iter = (SFG_Window *)fgStructure.Windows.First; iter; iter = (SFG_Window *)iter->Node.Next ) { if ( ( iter->Window.Context == window->Window.Context ) && ( iter != window ) ) used = TRUE ; @@ -1383,13 +1511,18 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara /* * Fallback if there's an active menu hooked to this window */ - if( window->ActiveMenu != NULL ) + if ( window->ActiveMenu != NULL ) { /* * Let's make the window redraw as a result of the mouse motion. */ window->State.Redisplay = TRUE ; + /* + * Since the window is a menu, make the parent window current + */ + fgSetWindow ( window->ActiveMenu->ParentWindow ) ; + break; } @@ -1509,12 +1642,13 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara /* Save the current window and menu and set the current window to the window whose menu this is */ SFG_Window *save_window = fgStructure.Window ; SFG_Menu *save_menu = fgStructure.Menu ; - fgSetWindow ( window ) ; + SFG_Window *parent_window = window->ActiveMenu->ParentWindow ; + fgSetWindow ( parent_window ) ; fgStructure.Menu = window->ActiveMenu ; /* Execute the menu callback */ fgExecuteMenuCallback ( window->ActiveMenu ) ; - fgDeactivateMenu ( window->ActiveMenu->ParentWindow ) ; + fgDeactivateMenu ( parent_window ) ; /* Restore the current window and menu */ fgSetWindow ( save_window ) ; @@ -1559,10 +1693,15 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara /* * Check if there is a mouse callback hooked to the window */ - if( fgStructure.Window->Callbacks.Mouse == NULL ) + if( window->Callbacks.Mouse == NULL ) break; /* + * Set the current window + */ + fgSetWindow ( window ); + + /* * Remember the current modifiers state. */ fgStructure.Window->State.Modifiers = @@ -1573,7 +1712,7 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara /* * Finally execute the mouse callback */ - fgStructure.Window->Callbacks.Mouse( + window->Callbacks.Mouse( button, pressed == TRUE ? GLUT_DOWN : GLUT_UP, window->State.MouseX, @@ -1600,11 +1739,6 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara break; /* - * Set the current window - */ - fgSetWindow( window ); - - /* * Remember the current modifiers state. This is done here in order * to make sure the VK_DELETE keyboard callback is executed properly. */ @@ -1652,7 +1786,10 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara * The delete key should be treated as an ASCII keypress: */ if( window->Callbacks.Keyboard != NULL ) + { + fgSetWindow( window ); window->Callbacks.Keyboard( 127, window->State.MouseX, window->State.MouseY ); + } } /* @@ -1661,6 +1798,11 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara if( (keypress != -1) && (window->Callbacks.Special != NULL) ) { /* + * Set the current window + */ + fgSetWindow( window ); + + /* * Have the special callback executed: */ window->Callbacks.Special( keypress, window->State.MouseX, window->State.MouseY ); @@ -1680,11 +1822,6 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara POINT mouse_pos ; /* - * Set the current window - */ - fgSetWindow( window ); - - /* * Remember the current modifiers state. This is done here in order * to make sure the VK_DELETE keyboard callback is executed properly. */ @@ -1731,7 +1868,10 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara * The delete key should be treated as an ASCII keypress: */ if( window->Callbacks.KeyboardUp != NULL ) + { + fgSetWindow ( window ) ; window->Callbacks.KeyboardUp( 127, window->State.MouseX, window->State.MouseY ); + } break ; default: @@ -1748,7 +1888,14 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara wParam=code[ 0 ]; if( window->Callbacks.KeyboardUp != NULL ) + { + /* + * Set the current window + */ + fgSetWindow( window ); + window->Callbacks.KeyboardUp( (char)wParam, window->State.MouseX, window->State.MouseY ); + } } } @@ -1758,6 +1905,11 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara if( (keypress != -1) && (window->Callbacks.SpecialUp != NULL) ) { /* + * Set the current window + */ + fgSetWindow( window ); + + /* * Have the special callback executed: */ window->Callbacks.SpecialUp( keypress, window->State.MouseX, window->State.MouseY ); @@ -1785,6 +1937,11 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara if( window->Callbacks.Keyboard != NULL ) { /* + * Set the current window + */ + fgSetWindow( window ); + + /* * Remember the current modifiers state */ window->State.Modifiers = @@ -1807,7 +1964,14 @@ LRESULT CALLBACK fgWindowProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPara case WM_CAPTURECHANGED : /* User has finished resizing the window, force a redraw */ if ( window->Callbacks.Display ) + { + /* + * Set the current window + */ + fgSetWindow( window ); + window->Callbacks.Display () ; + } /* lRet = DefWindowProc( hWnd, uMsg, wParam, lParam ) ; */ break ;