X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Ffreeglut_main.c;h=c6eaa64baf48510a3c97c01c2d71c4375dfc804e;hb=fa43a255b9778016ce78123712b8ff89efd2fb34;hp=34c3f79799ee7e5a7bf3bf4dcdb72ac457eab0c8;hpb=d3a7931b13fa9b9c343b1859fffe6433e64fc24c;p=freeglut diff --git a/src/freeglut_main.c b/src/freeglut_main.c index 34c3f79..c6eaa64 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: * @@ -265,7 +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... @@ -399,6 +418,118 @@ void fgWarning( const char *fmt, ... ) va_end( ap ); } +/* + * 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 fgCheckJoystickCallback( SFG_Window* w, SFG_Enumerator* e) +{ + if( w->Callbacks.Joystick ) + { + e->found = TRUE; + e->data = w; + } + 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; + + for( timer = (SFG_Timer *)fgState.Timers.First; + timer; + timer = (SFG_Timer *)timer->Node.Next ) + ret = MIN( ret, MAX( 0, (timer->TriggerTime) - now ) ); + + 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 ); + + wait.tv_sec = msec / 1000; + wait.tv_usec = (msec % 1000) * 1000; + err = select( socket+1, &fdset, NULL, NULL, &wait ); + + if( -1 == err ) + printf( "freeglut select() error: %d\n", errno ); + +#elif TARGET_HOST_WIN32 +#endif +} + /* -- INTERFACE FUNCTIONS -------------------------------------------------- */ /* @@ -425,7 +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... @@ -621,17 +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 ; /* * Since the window is a menu, make the parent window current */ fgSetWindow ( window->ActiveMenu->ParentWindow ) ; - break; + break; /* I think this should stay in -- an active menu should absorb the mouse motion */ } /* @@ -693,26 +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. @@ -727,7 +853,13 @@ 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 ; @@ -760,7 +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. @@ -976,7 +1109,7 @@ void FGAPIENTRY glutMainLoopEvent( void ) break; } } - else + { /* * Have all the timers checked. @@ -1008,7 +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 @@ -1022,7 +1155,7 @@ void FGAPIENTRY glutMainLoopEvent( void ) TranslateMessage( &stMsg ); DispatchMessage( &stMsg ); } - else + { /* * Have all the timers checked. @@ -1117,6 +1250,8 @@ void FGAPIENTRY glutMainLoop( void ) */ if ( fgStructure.Windows.First == NULL ) fgState.ExecState = GLUT_EXEC_STATE_STOP ; + else + fgSleepForEvents(); } { @@ -1507,12 +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 ; + SFG_Window *parent_window = window->ActiveMenu->ParentWindow ; fgSetWindow ( 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 ) ;