X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2FCommon%2Ffreeglut_window.c;h=9e0408151cf7664bfcdddc627a22bc8bc164f0d9;hb=c41e61d8b1543d571577005109f15ac25b5f3f17;hp=69aba28ba0a3e203901c51bee75bd0dbeecfb149;hpb=6c3c78f5fe46f0126e26dcae456ebdec502913f5;p=freeglut diff --git a/src/Common/freeglut_window.c b/src/Common/freeglut_window.c index 69aba28..9e04081 100644 --- a/src/Common/freeglut_window.c +++ b/src/Common/freeglut_window.c @@ -1,1293 +1,504 @@ -/* - * freeglut_window.c - * - * Window management methods. - * - * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved. - * Written by Pawel W. Olszta, - * Creation date: Fri Dec 3 1999 - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER - * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -#define FREEGLUT_BUILDING_LIB -#include -#include "freeglut_internal.h" - -#if TARGET_HOST_POSIX_X11 -#include /* LONG_MAX */ -#include /* usleep */ -#endif - -#if defined(_WIN32_WCE) -# include -# ifdef FREEGLUT_LIB_PRAGMAS -# pragma comment( lib, "Aygshell.lib" ) -# endif -#endif /* defined(_WIN32_WCE) */ - - -#if TARGET_HOST_POSIX_X11 -#ifndef GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB -#define GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB 0x20B2 -#endif - -#ifndef GLX_CONTEXT_MAJOR_VERSION_ARB -#define GLX_CONTEXT_MAJOR_VERSION_ARB 0x2091 -#endif - -#ifndef GLX_CONTEXT_MINOR_VERSION_ARB -#define GLX_CONTEXT_MINOR_VERSION_ARB 0x2092 -#endif - -#ifndef GLX_CONTEXT_FLAGS_ARB -#define GLX_CONTEXT_FLAGS_ARB 0x2094 -#endif - -#ifndef GLX_CONTEXT_PROFILE_MASK_ARB -#define GLX_CONTEXT_PROFILE_MASK_ARB 0x9126 -#endif - -#ifndef GLX_CONTEXT_DEBUG_BIT_ARB -#define GLX_CONTEXT_DEBUG_BIT_ARB 0x0001 -#endif - -#ifndef GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB -#define GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x0002 -#endif - -#ifndef GLX_CONTEXT_CORE_PROFILE_BIT_ARB -#define GLX_CONTEXT_CORE_PROFILE_BIT_ARB 0x00000001 -#endif - -#ifndef GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB -#define GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB 0x00000002 -#endif - -#ifndef GLX_RGBA_FLOAT_TYPE -#define GLX_RGBA_FLOAT_TYPE 0x20B9 -#endif - -#ifndef GLX_RGBA_FLOAT_BIT -#define GLX_RGBA_FLOAT_BIT 0x00000004 -#endif -#endif /* TARGET_HOST_POSIX_X11 */ - - -/* pushing attribute/value pairs into an array */ -#define ATTRIB(a) attributes[where++]=(a) -#define ATTRIB_VAL(a,v) {ATTRIB(a); ATTRIB(v);} - -/* - * TODO BEFORE THE STABLE RELEASE: - * - * fgChooseFBConfig() -- OK, but what about glutInitDisplayString()? - * fgSetupPixelFormat -- ignores the display mode settings - * fgOpenWindow() -- check the Win32 version, -iconic handling! - * fgCloseWindow() -- check the Win32 version - * glutCreateWindow() -- Check when default position and size is {-1,-1} - * glutCreateSubWindow() -- Check when default position and size is {-1,-1} - * glutDestroyWindow() -- check the Win32 version - * glutSetWindow() -- check the Win32 version - * glutGetWindow() -- OK - * glutSetWindowTitle() -- check the Win32 version - * glutSetIconTitle() -- check the Win32 version - * glutShowWindow() -- check the Win32 version - * glutHideWindow() -- check the Win32 version - * glutIconifyWindow() -- check the Win32 version - * glutReshapeWindow() -- check the Win32 version - * glutPositionWindow() -- check the Win32 version - * glutPushWindow() -- check the Win32 version - * glutPopWindow() -- check the Win32 version - */ - - -extern void fgPlatformSetWindow ( SFG_Window *window ); -extern void fgPlatformOpenWindow( SFG_Window* window, const char* title, - GLboolean positionUse, int x, int y, - GLboolean sizeUse, int w, int h, - GLboolean gameMode, GLboolean isSubWindow ); -extern void fgPlatformCloseWindow( SFG_Window* window ); -extern void fgPlatformGlutShowWindow( void ); -extern void fgPlatformGlutHideWindow( void ); -extern void fgPlatformGlutIconifyWindow( void ); -extern void fgPlatformGlutSetWindowTitle( const char* title ); -extern void fgPlatformGlutSetIconTitle( const char* title ); -extern void fgPlatformGlutPositionWindow( int x, int y ); -extern void fgPlatformGlutPushWindow( void ); -extern void fgPlatformGlutPopWindow( void ); -extern void fgPlatformGlutFullScreen( SFG_Window *win ); -extern void fgPlatformGlutLeaveFullScreen( SFG_Window *win ); -extern void fgPlatformGlutFullScreenToggle( SFG_Window *win ); - - -/* -- PRIVATE FUNCTIONS ---------------------------------------------------- */ - -int fghIsLegacyContextVersionRequested( void ) -{ - return fgState.MajorVersion < 2 || (fgState.MajorVersion == 2 && fgState.MinorVersion <= 1); -} - -int fghIsLegacyContextRequested( void ) -{ - return fghIsLegacyContextVersionRequested() && - fgState.ContextFlags == 0 && - fgState.ContextProfile == 0; -} - -int fghNumberOfAuxBuffersRequested( void ) -{ - if ( fgState.DisplayMode & GLUT_AUX4 ) { - return 4; - } - if ( fgState.DisplayMode & GLUT_AUX3 ) { - return 3; - } - if ( fgState.DisplayMode & GLUT_AUX2 ) { - return 2; - } - if ( fgState.DisplayMode & GLUT_AUX1 ) { /* NOTE: Same as GLUT_AUX! */ - return fgState.AuxiliaryBufferNumber; - } - return 0; -} - -int fghMapBit( int mask, int from, int to ) -{ - return ( mask & from ) ? to : 0; - -} - -void fghContextCreationError( void ) -{ - fgError( "Unable to create OpenGL %d.%d context (flags %x, profile %x)", - fgState.MajorVersion, fgState.MinorVersion, fgState.ContextFlags, - fgState.ContextProfile ); -} - - -/* -- SYSTEM-DEPENDENT PRIVATE FUNCTIONS ------------------------------------ */ - -#if TARGET_HOST_POSIX_X11 -/* - * Chooses a visual basing on the current display mode settings - */ - -GLXFBConfig* fgChooseFBConfig( int *numcfgs ) -{ - GLboolean wantIndexedMode = GL_FALSE; - int attributes[ 100 ]; - int where = 0, numAuxBuffers; - - /* First we have to process the display mode settings... */ - if( fgState.DisplayMode & GLUT_INDEX ) { - ATTRIB_VAL( GLX_BUFFER_SIZE, 8 ); - /* Buffer size is selected later. */ - - ATTRIB_VAL( GLX_RENDER_TYPE, GLX_COLOR_INDEX_BIT ); - wantIndexedMode = GL_TRUE; - } else { - ATTRIB_VAL( GLX_RED_SIZE, 1 ); - ATTRIB_VAL( GLX_GREEN_SIZE, 1 ); - ATTRIB_VAL( GLX_BLUE_SIZE, 1 ); - if( fgState.DisplayMode & GLUT_ALPHA ) { - ATTRIB_VAL( GLX_ALPHA_SIZE, 1 ); - } - } - - if( fgState.DisplayMode & GLUT_DOUBLE ) { - ATTRIB_VAL( GLX_DOUBLEBUFFER, True ); - } - - if( fgState.DisplayMode & GLUT_STEREO ) { - ATTRIB_VAL( GLX_STEREO, True ); - } - - if( fgState.DisplayMode & GLUT_DEPTH ) { - ATTRIB_VAL( GLX_DEPTH_SIZE, 1 ); - } - - if( fgState.DisplayMode & GLUT_STENCIL ) { - ATTRIB_VAL( GLX_STENCIL_SIZE, 1 ); - } - - if( fgState.DisplayMode & GLUT_ACCUM ) { - ATTRIB_VAL( GLX_ACCUM_RED_SIZE, 1 ); - ATTRIB_VAL( GLX_ACCUM_GREEN_SIZE, 1 ); - ATTRIB_VAL( GLX_ACCUM_BLUE_SIZE, 1 ); - if( fgState.DisplayMode & GLUT_ALPHA ) { - ATTRIB_VAL( GLX_ACCUM_ALPHA_SIZE, 1 ); - } - } - - numAuxBuffers = fghNumberOfAuxBuffersRequested(); - if ( numAuxBuffers > 0 ) { - ATTRIB_VAL( GLX_AUX_BUFFERS, numAuxBuffers ); - } - - if( fgState.DisplayMode & GLUT_SRGB ) { - ATTRIB_VAL( GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB, True ); - } - - if (fgState.DisplayMode & GLUT_MULTISAMPLE) { - ATTRIB_VAL(GLX_SAMPLE_BUFFERS, 1); - ATTRIB_VAL(GLX_SAMPLES, fgState.SampleNumber); - } - - /* Push a terminator at the end of the list */ - ATTRIB( None ); - - { - GLXFBConfig * fbconfigArray; /* Array of FBConfigs */ - GLXFBConfig * fbconfig; /* The FBConfig we want */ - int fbconfigArraySize; /* Number of FBConfigs in the array */ - - - /* Get all FBConfigs that match "attributes". */ - fbconfigArray = glXChooseFBConfig( fgDisplay.pDisplay.Display, - fgDisplay.pDisplay.Screen, - attributes, - &fbconfigArraySize ); - - if (fbconfigArray != NULL) - { - int result; /* Returned by glXGetFBConfigAttrib, not checked. */ - - - if( wantIndexedMode ) - { - /* - * In index mode, we want the largest buffer size, i.e. visual - * depth. Here, FBConfigs are sorted by increasing buffer size - * first, so FBConfigs with the largest size come last. - */ - - int bufferSizeMin, bufferSizeMax; - - /* Get bufferSizeMin. */ - result = - glXGetFBConfigAttrib( fgDisplay.pDisplay.Display, - fbconfigArray[0], - GLX_BUFFER_SIZE, - &bufferSizeMin ); - /* Get bufferSizeMax. */ - result = - glXGetFBConfigAttrib( fgDisplay.pDisplay.Display, - fbconfigArray[fbconfigArraySize - 1], - GLX_BUFFER_SIZE, - &bufferSizeMax ); - - if (bufferSizeMax > bufferSizeMin) - { - /* - * Free and reallocate fbconfigArray, keeping only FBConfigs - * with the largest buffer size. - */ - XFree(fbconfigArray); - - /* Add buffer size token at the end of the list. */ - where--; - ATTRIB_VAL( GLX_BUFFER_SIZE, bufferSizeMax ); - ATTRIB( None ); - - fbconfigArray = glXChooseFBConfig( fgDisplay.pDisplay.Display, - fgDisplay.Screen, - attributes, - &fbconfigArraySize ); - } - } - - /* - * We now have an array of FBConfigs, the first one being the "best" - * one. So we should return only this FBConfig: - * - * int fbconfigXID; - * - * - pick the XID of the FBConfig we want - * result = glXGetFBConfigAttrib( fgDisplay.pDisplay.Display, - * fbconfigArray[0], - * GLX_FBCONFIG_ID, - * &fbconfigXID ); - * - * - free the array - * XFree(fbconfigArray); - * - * - reset "attributes" with the XID - * where = 0; - * ATTRIB_VAL( GLX_FBCONFIG_ID, fbconfigXID ); - * ATTRIB( None ); - * - * - get our FBConfig only - * fbconfig = glXChooseFBConfig( fgDisplay.pDisplay.Display, - * fgDisplay.pDisplay.Screen, - * attributes, - * &fbconfigArraySize ); - * - * However, for some configurations (for instance multisampling with - * Mesa 6.5.2 and ATI drivers), this does not work: - * glXChooseFBConfig returns NULL, whereas fbconfigXID is a valid - * XID. Further investigation is needed. - * - * So, for now, we return the whole array of FBConfigs. This should - * not produce any side effects elsewhere. - */ - fbconfig = fbconfigArray; - } - else - { - fbconfig = NULL; - } - - if (numcfgs) - *numcfgs = fbconfigArraySize; - - return fbconfig; - } -} - - -static void fghFillContextAttributes( int *attributes ) { - int where = 0, contextFlags, contextProfile; - - if ( !fghIsLegacyContextVersionRequested() ) { - ATTRIB_VAL( GLX_CONTEXT_MAJOR_VERSION_ARB, fgState.MajorVersion ); - ATTRIB_VAL( GLX_CONTEXT_MINOR_VERSION_ARB, fgState.MinorVersion ); - } - - contextFlags = - fghMapBit( fgState.ContextFlags, GLUT_DEBUG, GLX_CONTEXT_DEBUG_BIT_ARB ) | - fghMapBit( fgState.ContextFlags, GLUT_FORWARD_COMPATIBLE, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB ); - if ( contextFlags != 0 ) { - ATTRIB_VAL( GLX_CONTEXT_FLAGS_ARB, contextFlags ); - } - - contextProfile = - fghMapBit( fgState.ContextProfile, GLUT_CORE_PROFILE, GLX_CONTEXT_CORE_PROFILE_BIT_ARB ) | - fghMapBit( fgState.ContextProfile, GLUT_COMPATIBILITY_PROFILE, GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB ); - if ( contextProfile != 0 ) { - ATTRIB_VAL( GLX_CONTEXT_PROFILE_MASK_ARB, contextProfile ); - } - - ATTRIB( 0 ); -} - -typedef GLXContext (*CreateContextAttribsProc)(Display *dpy, GLXFBConfig config, - GLXContext share_list, Bool direct, - const int *attrib_list); - -static GLXContext fghCreateNewContext( SFG_Window* window ) -{ - /* for color model calculation */ - int menu = ( window->IsMenu && !fgStructure.MenuContext ); - int index_mode = ( fgState.DisplayMode & GLUT_INDEX ); - - /* "classic" context creation */ - Display *dpy = fgDisplay.pDisplay.Display; - GLXFBConfig config = *(window->Window.pContext.FBConfig); - int render_type = ( !menu && index_mode ) ? GLX_COLOR_INDEX_TYPE : GLX_RGBA_TYPE; - GLXContext share_list = NULL; - Bool direct = ( fgState.DirectContext != GLUT_FORCE_INDIRECT_CONTEXT ); - GLXContext context; - - /* new context creation */ - int attributes[9]; - CreateContextAttribsProc createContextAttribs = (CreateContextAttribsProc) fghGetProcAddress( "glXCreateContextAttribsARB" ); - - /* glXCreateContextAttribsARB not found, yet the user has requested the new context creation */ - if ( !createContextAttribs && !fghIsLegacyContextRequested() ) { - fgWarning( "OpenGL >2.1 context requested but glXCreateContextAttribsARB is not available! Falling back to legacy context creation" ); - fgState.MajorVersion = 2; - fgState.MinorVersion = 1; - } - - /* If nothing fancy has been required, simply use the old context creation GLX API entry */ - if ( fghIsLegacyContextRequested() || !createContextAttribs ) - { - context = glXCreateNewContext( dpy, config, render_type, share_list, direct ); - if ( context == NULL ) { - fghContextCreationError(); - } - return context; - } - - /* color index mode is not available anymore with OpenGL 3.0 */ - if ( render_type == GLX_COLOR_INDEX_TYPE ) { - fgWarning( "color index mode is deprecated, using RGBA mode" ); - } - - fghFillContextAttributes( attributes ); - - context = createContextAttribs( dpy, config, share_list, direct, attributes ); - if ( context == NULL ) { - fghContextCreationError(); - } - return context; -} - - -#define _NET_WM_STATE_TOGGLE 2 -static int fghResizeFullscrToggle(void) -{ - XWindowAttributes attributes; - - if(glutGet(GLUT_FULL_SCREEN)) { - /* restore original window size */ - SFG_Window *win = fgStructure.CurrentWindow; - fgStructure.CurrentWindow->State.NeedToResize = GL_TRUE; - fgStructure.CurrentWindow->State.Width = win->State.pWState.OldWidth; - fgStructure.CurrentWindow->State.Height = win->State.pWState.OldHeight; - - } else { - /* resize the window to cover the entire screen */ - XGetWindowAttributes(fgDisplay.pDisplay.Display, - fgStructure.CurrentWindow->Window.Handle, - &attributes); - - /* - * The "x" and "y" members of "attributes" are the window's coordinates - * relative to its parent, i.e. to the decoration window. - */ - XMoveResizeWindow(fgDisplay.pDisplay.Display, - fgStructure.CurrentWindow->Window.Handle, - -attributes.x, - -attributes.y, - fgDisplay.ScreenWidth, - fgDisplay.ScreenHeight); - } - return 0; -} - -static int fghEwmhFullscrToggle(void) -{ - XEvent xev; - long evmask = SubstructureRedirectMask | SubstructureNotifyMask; - - if(!fgDisplay.State || !fgDisplay.StateFullScreen) { - return -1; - } - - xev.type = ClientMessage; - xev.xclient.window = fgStructure.CurrentWindow->Window.Handle; - xev.xclient.message_type = fgDisplay.State; - xev.xclient.format = 32; - xev.xclient.data.l[0] = _NET_WM_STATE_TOGGLE; - xev.xclient.data.l[1] = fgDisplay.StateFullScreen; - xev.xclient.data.l[2] = 0; /* no second property to toggle */ - xev.xclient.data.l[3] = 1; /* source indication: application */ - xev.xclient.data.l[4] = 0; /* unused */ - - if(!XSendEvent(fgDisplay.pDisplay.Display, fgDisplay.pDisplay.RootWindow, 0, evmask, &xev)) { - return -1; - } - return 0; -} - -static int fghToggleFullscreen(void) -{ - /* first try the EWMH (_NET_WM_STATE) method ... */ - if(fghEwmhFullscrToggle() != -1) { - return 0; - } - - /* fall back to resizing the window */ - if(fghResizeFullscrToggle() != -1) { - return 0; - } - return -1; -} - -void fgPlatformSetWindow ( SFG_Window *window ) -{ - if ( window ) - { - glXMakeContextCurrent( - fgDisplay.pDisplay.Display, - window->Window.Handle, - window->Window.Handle, - window->Window.Context - ); - } -} - - -/* - * Opens a window. Requires a SFG_Window object created and attached - * to the freeglut structure. OpenGL context is created here. - */ -void fgPlatformOpenWindow( SFG_Window* window, const char* title, - GLboolean positionUse, int x, int y, - GLboolean sizeUse, int w, int h, - GLboolean gameMode, GLboolean isSubWindow ) -{ - XVisualInfo * visualInfo = NULL; - XSetWindowAttributes winAttr; - XTextProperty textProperty; - XSizeHints sizeHints; - XWMHints wmHints; - XEvent eventReturnBuffer; /* return buffer required for a call */ - unsigned long mask; - int num_FBConfigs, i; - unsigned int current_DisplayMode = fgState.DisplayMode ; - - /* Save the display mode if we are creating a menu window */ - if( window->IsMenu && ( ! fgStructure.MenuContext ) ) - fgState.DisplayMode = GLUT_DOUBLE | GLUT_RGB ; - - window->Window.pContext.FBConfig = fgChooseFBConfig( &num_FBConfigs ); - - if( window->IsMenu && ( ! fgStructure.MenuContext ) ) - fgState.DisplayMode = current_DisplayMode ; - - if( ! window->Window.pContext.FBConfig ) - { - /* - * The "fgChooseFBConfig" returned a null meaning that the visual - * context is not available. - * Try a couple of variations to see if they will work. - */ - if( !( fgState.DisplayMode & GLUT_DOUBLE ) ) - { - fgState.DisplayMode |= GLUT_DOUBLE ; - window->Window.pContext.FBConfig = fgChooseFBConfig( &num_FBConfigs ); - fgState.DisplayMode &= ~GLUT_DOUBLE; - } - - if( fgState.DisplayMode & GLUT_MULTISAMPLE ) - { - fgState.DisplayMode &= ~GLUT_MULTISAMPLE ; - window->Window.pContext.FBConfig = fgChooseFBConfig( &num_FBConfigs ); - fgState.DisplayMode |= GLUT_MULTISAMPLE; - } - } - - FREEGLUT_INTERNAL_ERROR_EXIT( window->Window.pContext.FBConfig != NULL, - "FBConfig with necessary capabilities not found", "fgOpenWindow" ); - - /* Get the X visual. */ - for (i = 0; i < num_FBConfigs; i++) { - visualInfo = glXGetVisualFromFBConfig( fgDisplay.pDisplay.Display, - window->Window.pContext.FBConfig[i] ); - if (visualInfo) - break; - } - - FREEGLUT_INTERNAL_ERROR_EXIT( visualInfo != NULL, - "visualInfo could not be retrieved from FBConfig", "fgOpenWindow" ); - - /* - * XXX HINT: the masks should be updated when adding/removing callbacks. - * XXX This might speed up message processing. Is that true? - * XXX - * XXX A: Not appreciably, but it WILL make it easier to debug. - * XXX Try tracing old GLUT and try tracing freeglut. Old GLUT - * XXX turns off events that it doesn't need and is a whole lot - * XXX more pleasant to trace. (Think mouse-motion! Tons of - * XXX ``bonus'' GUI events stream in.) - */ - winAttr.event_mask = - StructureNotifyMask | SubstructureNotifyMask | ExposureMask | - ButtonPressMask | ButtonReleaseMask | KeyPressMask | KeyReleaseMask | - VisibilityChangeMask | EnterWindowMask | LeaveWindowMask | - PointerMotionMask | ButtonMotionMask; - winAttr.background_pixmap = None; - winAttr.background_pixel = 0; - winAttr.border_pixel = 0; - - winAttr.colormap = XCreateColormap( - fgDisplay.pDisplay.Display, fgDisplay.pDisplay.RootWindow, - visualInfo->visual, AllocNone - ); - - mask = CWBackPixmap | CWBorderPixel | CWColormap | CWEventMask; - - if( window->IsMenu || ( gameMode == GL_TRUE ) ) - { - winAttr.override_redirect = True; - mask |= CWOverrideRedirect; - } - - if( ! positionUse ) - x = y = -1; /* default window position */ - if( ! sizeUse ) - w = h = 300; /* default window size */ - - window->Window.Handle = XCreateWindow( - fgDisplay.pDisplay.Display, - window->Parent == NULL ? fgDisplay.pDisplay.RootWindow : - window->Parent->Window.Handle, - x, y, w, h, 0, - visualInfo->depth, InputOutput, - visualInfo->visual, mask, - &winAttr - ); - - /* - * The GLX context creation, possibly trying the direct context rendering - * or else use the current context if the user has so specified - */ - - if( window->IsMenu ) - { - /* - * If there isn't already an OpenGL rendering context for menu - * windows, make one - */ - if( !fgStructure.MenuContext ) - { - fgStructure.MenuContext = - (SFG_MenuContext *)malloc( sizeof(SFG_MenuContext) ); - fgStructure.MenuContext->MContext = fghCreateNewContext( window ); - } - - /* window->Window.Context = fgStructure.MenuContext->MContext; */ - window->Window.Context = fghCreateNewContext( window ); - } - else if( fgState.UseCurrentContext ) - { - window->Window.Context = glXGetCurrentContext( ); - - if( ! window->Window.Context ) - window->Window.Context = fghCreateNewContext( window ); - } - else - window->Window.Context = fghCreateNewContext( window ); - -#if !defined( __FreeBSD__ ) && !defined( __NetBSD__ ) - if( !glXIsDirect( fgDisplay.pDisplay.Display, window->Window.Context ) ) - { - if( fgState.DirectContext == GLUT_FORCE_DIRECT_CONTEXT ) - fgError( "Unable to force direct context rendering for window '%s'", - title ); - } -#endif - - /* - * XXX Assume the new window is visible by default - * XXX Is this a safe assumption? - */ - window->State.Visible = GL_TRUE; - - sizeHints.flags = 0; - if ( positionUse ) - sizeHints.flags |= USPosition; - if ( sizeUse ) - sizeHints.flags |= USSize; - - /* - * Fill in the size hints values now (the x, y, width and height - * settings are obsolete, are there any more WMs that support them?) - * Unless the X servers actually stop supporting these, we should - * continue to fill them in. It is *not* our place to tell the user - * that they should replace a window manager that they like, and which - * works, just because *we* think that it's not "modern" enough. - */ - sizeHints.x = x; - sizeHints.y = y; - sizeHints.width = w; - sizeHints.height = h; - - wmHints.flags = StateHint; - wmHints.initial_state = fgState.ForceIconic ? IconicState : NormalState; - /* Prepare the window and iconified window names... */ - XStringListToTextProperty( (char **) &title, 1, &textProperty ); - - XSetWMProperties( - fgDisplay.pDisplay.Display, - window->Window.Handle, - &textProperty, - &textProperty, - 0, - 0, - &sizeHints, - &wmHints, - NULL - ); - XFree( textProperty.value ); - - XSetWMProtocols( fgDisplay.pDisplay.Display, window->Window.Handle, - &fgDisplay.pDisplay.DeleteWindow, 1 ); - - glXMakeContextCurrent( - fgDisplay.pDisplay.Display, - window->Window.Handle, - window->Window.Handle, - window->Window.Context - ); - - /* register extension events _before_ window is mapped */ - #ifdef HAVE_X11_EXTENSIONS_XINPUT2_H - fgRegisterDevices( fgDisplay.pDisplay.Display, &(window->Window.Handle) ); - #endif - - XMapWindow( fgDisplay.pDisplay.Display, window->Window.Handle ); - - XFree(visualInfo); - - if( !isSubWindow) - XPeekIfEvent( fgDisplay.pDisplay.Display, &eventReturnBuffer, &fghWindowIsVisible, (XPointer)(window->Window.Handle) ); -} - - -/* - * Closes a window, destroying the frame and OpenGL context - */ -void fgPlatformCloseWindow( SFG_Window* window ) -{ - if( window->Window.Context ) - glXDestroyContext( fgDisplay.pDisplay.Display, window->Window.Context ); - XFree( window->Window.pContext.FBConfig ); - - if( window->Window.Handle ) { - XDestroyWindow( fgDisplay.pDisplay.Display, window->Window.Handle ); - } - /* XFlush( fgDisplay.pDisplay.Display ); */ /* XXX Shouldn't need this */ -} - - -static Bool fghWindowIsVisible( Display *display, XEvent *event, XPointer arg) -{ - Window window = (Window)arg; - return (event->type == MapNotify) && (event->xmap.window == window); -} - - - - -/* - * This function makes the current window visible - */ -void fgPlatformGlutShowWindow( void ) -{ - XMapWindow( fgDisplay.pDisplay.Display, fgStructure.CurrentWindow->Window.Handle ); - XFlush( fgDisplay.pDisplay.Display ); /* XXX Shouldn't need this */ -} - -/* - * This function hides the current window - */ -void fgPlatformGlutHideWindow( void ) -{ - if( fgStructure.CurrentWindow->Parent == NULL ) - XWithdrawWindow( fgDisplay.pDisplay.Display, - fgStructure.CurrentWindow->Window.Handle, - fgDisplay.pDisplay.Screen ); - else - XUnmapWindow( fgDisplay.pDisplay.Display, - fgStructure.CurrentWindow->Window.Handle ); - XFlush( fgDisplay.pDisplay.Display ); /* XXX Shouldn't need this */ -} - -/* - * Iconify the current window (top-level windows only) - */ -void fgPlatformGlutIconifyWindow( void ) -{ - XIconifyWindow( fgDisplay.pDisplay.Display, fgStructure.CurrentWindow->Window.Handle, - fgDisplay.pDisplay.Screen ); - XFlush( fgDisplay.pDisplay.Display ); /* XXX Shouldn't need this */ -} - -/* - * Set the current window's title - */ -void fgPlatformGlutSetWindowTitle( const char* title ) -{ - XTextProperty text; - - text.value = (unsigned char *) title; - text.encoding = XA_STRING; - text.format = 8; - text.nitems = strlen( title ); - - XSetWMName( - fgDisplay.pDisplay.Display, - fgStructure.CurrentWindow->Window.Handle, - &text - ); - - XFlush( fgDisplay.pDisplay.Display ); /* XXX Shouldn't need this */ -} - -/* - * Set the current window's iconified title - */ -void fgPlatformGlutSetIconTitle( const char* title ) -{ - XTextProperty text; - - text.value = (unsigned char *) title; - text.encoding = XA_STRING; - text.format = 8; - text.nitems = strlen( title ); - - XSetWMIconName( - fgDisplay.pDisplay.Display, - fgStructure.CurrentWindow->Window.Handle, - &text - ); - - XFlush( fgDisplay.pDisplay.Display ); /* XXX Shouldn't need this */ -} - -/* - * Change the current window's position - */ -void fgPlatformGlutPositionWindow( int x, int y ) -{ - XMoveWindow( fgDisplay.pDisplay.Display, fgStructure.CurrentWindow->Window.Handle, - x, y ); - XFlush( fgDisplay.pDisplay.Display ); /* XXX Shouldn't need this */ -} - -/* - * Lowers the current window (by Z order change) - */ -void fgPlatformGlutPushWindow( void ) -{ - XLowerWindow( fgDisplay.pDisplay.Display, fgStructure.CurrentWindow->Window.Handle ); -} - -/* - * Raises the current window (by Z order change) - */ -void fgPlatformGlutPopWindow( void ) -{ - XRaiseWindow( fgDisplay.pDisplay.Display, fgStructure.CurrentWindow->Window.Handle ); -} - -/* - * Resize the current window so that it fits the whole screen - */ -void fgPlatformGlutFullScreen( SFG_Window *win ) -{ - if(!glutGet(GLUT_FULL_SCREEN)) { - if(fghToggleFullscreen() != -1) { - win->State.IsFullscreen = GL_TRUE; - } - } -} - -/* - * If we are fullscreen, resize the current window back to its original size - */ -void fgPlatformGlutLeaveFullScreen( SFG_Window *win ) -{ - if(glutGet(GLUT_FULL_SCREEN)) { - if(fghToggleFullscreen() != -1) { - win->State.IsFullscreen = GL_FALSE; - } - } -} - -/* - * Toggle the window's full screen state. - */ -void fgPlatformGlutFullScreenToggle( SFG_Window *win ) -{ - if(fghToggleFullscreen() != -1) { - win->State.IsFullscreen = !win->State.IsFullscreen; - } -} - - - -#endif /* TARGET_HOST_POSIX_X11 */ - - -/* - * Sets the OpenGL context and the fgStructure "Current Window" pointer to - * the window structure passed in. - */ -void fgSetWindow ( SFG_Window *window ) -{ - fgPlatformSetWindow ( window ); - - fgStructure.CurrentWindow = window; -} - - - - -/* - * Opens a window. Requires a SFG_Window object created and attached - * to the freeglut structure. OpenGL context is created here. - */ -void fgOpenWindow( SFG_Window* window, const char* title, - GLboolean positionUse, int x, int y, - GLboolean sizeUse, int w, int h, - GLboolean gameMode, GLboolean isSubWindow ) -{ - fgPlatformOpenWindow( window, title, - positionUse, x, y, - sizeUse, w, h, - gameMode, isSubWindow ); - - fgSetWindow( window ); - - window->Window.DoubleBuffered = - ( fgState.DisplayMode & GLUT_DOUBLE ) ? 1 : 0; - - if ( ! window->Window.DoubleBuffered ) - { - glDrawBuffer ( GL_FRONT ); - glReadBuffer ( GL_FRONT ); - } -} - -/* - * Closes a window, destroying the frame and OpenGL context - */ -void fgCloseWindow( SFG_Window* window ) -{ - /* if we're in gamemode and we're closing the gamemode window, - * call glutLeaveGameMode first to make sure the gamemode is - * properly closed before closing the window - */ - if (fgStructure.GameModeWindow != NULL && fgStructure.GameModeWindow->ID==window->ID) - glutLeaveGameMode(); - - fgPlatformCloseWindow ( window ); -} - - -/* -- INTERFACE FUNCTIONS -------------------------------------------------- */ - -/* - * Creates a new top-level freeglut window - */ -int FGAPIENTRY glutCreateWindow( const char* title ) -{ - /* XXX GLUT does not exit; it simply calls "glutInit" quietly if the - * XXX application has not already done so. The "freeglut" community - * XXX decided not to go this route (freeglut-developer e-mail from - * XXX Steve Baker, 12/16/04, 4:22 PM CST, "Re: [Freeglut-developer] - * XXX Desired 'freeglut' behaviour when there is no current window" - */ - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutCreateWindow" ); - - return fgCreateWindow( NULL, title, fgState.Position.Use, - fgState.Position.X, fgState.Position.Y, - fgState.Size.Use, fgState.Size.X, fgState.Size.Y, - GL_FALSE, GL_FALSE )->ID; -} - -/* - * This function creates a sub window. - */ -int FGAPIENTRY glutCreateSubWindow( int parentID, int x, int y, int w, int h ) -{ - int ret = 0; - SFG_Window* window = NULL; - SFG_Window* parent = NULL; - - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutCreateSubWindow" ); - parent = fgWindowByID( parentID ); - freeglut_return_val_if_fail( parent != NULL, 0 ); - if ( x < 0 ) - { - x = parent->State.Width + x ; - if ( w >= 0 ) x -= w ; - } - - if ( w < 0 ) w = parent->State.Width - x + w ; - if ( w < 0 ) - { - x += w ; - w = -w ; - } - - if ( y < 0 ) - { - y = parent->State.Height + y ; - if ( h >= 0 ) y -= h ; - } - - if ( h < 0 ) h = parent->State.Height - y + h ; - if ( h < 0 ) - { - y += h ; - h = -h ; - } - - window = fgCreateWindow( parent, "", GL_TRUE, x, y, GL_TRUE, w, h, GL_FALSE, GL_FALSE ); - ret = window->ID; - - return ret; -} - -/* - * Destroys a window and all of its subwindows - */ -void FGAPIENTRY glutDestroyWindow( int windowID ) -{ - SFG_Window* window; - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutDestroyWindow" ); - window = fgWindowByID( windowID ); - freeglut_return_if_fail( window != NULL ); - { - fgExecutionState ExecState = fgState.ExecState; - fgAddToWindowDestroyList( window ); - fgState.ExecState = ExecState; - } -} - -/* - * This function selects the current window - */ -void FGAPIENTRY glutSetWindow( int ID ) -{ - SFG_Window* window = NULL; - - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetWindow" ); - if( fgStructure.CurrentWindow != NULL ) - if( fgStructure.CurrentWindow->ID == ID ) - return; - - window = fgWindowByID( ID ); - if( window == NULL ) - { - fgWarning( "glutSetWindow(): window ID %d not found!", ID ); - return; - } - - fgSetWindow( window ); -} - -/* - * This function returns the ID number of the current window, 0 if none exists - */ -int FGAPIENTRY glutGetWindow( void ) -{ - SFG_Window *win = fgStructure.CurrentWindow; - /* - * Since GLUT did not throw an error if this function was called without a prior call to - * "glutInit", this function shouldn't do so here. Instead let us return a zero. - * See Feature Request "[ 1307049 ] glutInit check". - */ - if ( ! fgState.Initialised ) - return 0; - - while ( win && win->IsMenu ) - win = win->Parent; - return win ? win->ID : 0; -} - -/* - * This function makes the current window visible - */ -void FGAPIENTRY glutShowWindow( void ) -{ - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutShowWindow" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutShowWindow" ); - - fgPlatformGlutShowWindow (); - - fgStructure.CurrentWindow->State.Redisplay = GL_TRUE; -} - -/* - * This function hides the current window - */ -void FGAPIENTRY glutHideWindow( void ) -{ - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutHideWindow" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutHideWindow" ); - - fgPlatformGlutHideWindow (); - - fgStructure.CurrentWindow->State.Redisplay = GL_FALSE; -} - -/* - * Iconify the current window (top-level windows only) - */ -void FGAPIENTRY glutIconifyWindow( void ) -{ - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutIconifyWindow" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutIconifyWindow" ); - - fgStructure.CurrentWindow->State.Visible = GL_FALSE; - - fgPlatformGlutIconifyWindow (); - - fgStructure.CurrentWindow->State.Redisplay = GL_FALSE; -} - -/* - * Set the current window's title - */ -void FGAPIENTRY glutSetWindowTitle( const char* title ) -{ - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetWindowTitle" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSetWindowTitle" ); - if( ! fgStructure.CurrentWindow->Parent ) - { - fgPlatformGlutSetWindowTitle ( title ); - } -} - -/* - * Set the current window's iconified title - */ -void FGAPIENTRY glutSetIconTitle( const char* title ) -{ - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetIconTitle" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSetIconTitle" ); - - if( ! fgStructure.CurrentWindow->Parent ) - { - fgPlatformGlutSetIconTitle ( title ); - } -} - -/* - * Change the current window's size - */ -void FGAPIENTRY glutReshapeWindow( int width, int height ) -{ - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutReshapeWindow" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutReshapeWindow" ); - - if (glutGet(GLUT_FULL_SCREEN)) - { - /* Leave full screen state before resizing. */ - glutLeaveFullScreen(); - } - - fgStructure.CurrentWindow->State.NeedToResize = GL_TRUE; - fgStructure.CurrentWindow->State.Width = width ; - fgStructure.CurrentWindow->State.Height = height; -} - -/* - * Change the current window's position - */ -void FGAPIENTRY glutPositionWindow( int x, int y ) -{ - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPositionWindow" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutPositionWindow" ); - - if (glutGet(GLUT_FULL_SCREEN)) - { - /* Leave full screen state before moving. */ - glutLeaveFullScreen(); - } - - fgPlatformGlutPositionWindow ( x, y ); -} - -/* - * Lowers the current window (by Z order change) - */ -void FGAPIENTRY glutPushWindow( void ) -{ - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPushWindow" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutPushWindow" ); - - fgPlatformGlutPushWindow (); -} - -/* - * Raises the current window (by Z order change) - */ -void FGAPIENTRY glutPopWindow( void ) -{ - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPopWindow" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutPopWindow" ); - - fgPlatformGlutPopWindow (); -} - -/* - * Resize the current window so that it fits the whole screen - */ -void FGAPIENTRY glutFullScreen( void ) -{ - SFG_Window *win; - - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutFullScreen" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutFullScreen" ); - - win = fgStructure.CurrentWindow; - - if (win->Parent) - { - /* Child windows cannot be made fullscreen, consistent with GLUT's behavior - * Also, what would it mean for a child window to be fullscreen, given that it - * is confined to its parent? - */ - fgWarning("glutFullScreen called on a child window, ignoring..."); - return; - } - else if (fgStructure.GameModeWindow != NULL && fgStructure.GameModeWindow->ID==win->ID) - { - /* Ignore fullscreen call on GameMode window, those are always fullscreen already */ - return; - } - - fgPlatformGlutFullScreen ( win ); -} - -/* - * If we are fullscreen, resize the current window back to its original size - */ -void FGAPIENTRY glutLeaveFullScreen( void ) -{ - SFG_Window *win; - - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutFullScreen" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutFullScreen" ); - - win = fgStructure.CurrentWindow; - - fgPlatformGlutLeaveFullScreen ( win ); -} - -/* - * Toggle the window's full screen state. - */ -void FGAPIENTRY glutFullScreenToggle( void ) -{ - SFG_Window *win; - - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutFullScreenToggle" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutFullScreenToggle" ); - - win = fgStructure.CurrentWindow; - - fgPlatformGlutFullScreenToggle ( win ); -} - -/* - * A.Donev: Set and retrieve the window's user data - */ -void* FGAPIENTRY glutGetWindowData( void ) -{ - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGetWindowData" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutGetWindowData" ); - return fgStructure.CurrentWindow->UserData; -} - -void FGAPIENTRY glutSetWindowData(void* data) -{ - FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetWindowData" ); - FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSetWindowData" ); - fgStructure.CurrentWindow->UserData = data; -} - -/*** END OF FILE ***/ +/* + * freeglut_window.c + * + * Window management methods. + * + * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved. + * Written by Pawel W. Olszta, + * Creation date: Fri Dec 3 1999 + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER + * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#define FREEGLUT_BUILDING_LIB +#include +#include "freeglut_internal.h" + +#if defined(_WIN32_WCE) +# include +# ifdef FREEGLUT_LIB_PRAGMAS +# pragma comment( lib, "Aygshell.lib" ) +# endif +#endif /* defined(_WIN32_WCE) */ + + +/* + * TODO BEFORE THE STABLE RELEASE: + * + * fgSetupPixelFormat -- ignores the display mode settings + * fgOpenWindow() -- check the Win32 version, -iconic handling! + * fgCloseWindow() -- check the Win32 version + * glutCreateWindow() -- Check when default position and size is {-1,-1} + * glutCreateSubWindow() -- Check when default position and size is {-1,-1} + * glutDestroyWindow() -- check the Win32 version + * glutSetWindow() -- check the Win32 version + * glutSetWindowTitle() -- check the Win32 version + * glutSetIconTitle() -- check the Win32 version + * glutShowWindow() -- check the Win32 version + * glutHideWindow() -- check the Win32 version + * glutIconifyWindow() -- check the Win32 version + * glutPushWindow() -- check the Win32 version + * glutPopWindow() -- check the Win32 version + */ + + +extern void fgPlatformSetWindow ( SFG_Window *window ); +extern void fgPlatformOpenWindow( SFG_Window* window, const char* title, + GLboolean positionUse, int x, int y, + GLboolean sizeUse, int w, int h, + GLboolean gameMode, GLboolean isSubWindow ); +extern void fgPlatformCloseWindow( SFG_Window* window ); +extern void fgPlatformGlutShowWindow( void ); +extern void fgPlatformGlutHideWindow( void ); +extern void fgPlatformGlutIconifyWindow( void ); +extern void fgPlatformGlutSetWindowTitle( const char* title ); +extern void fgPlatformGlutSetIconTitle( const char* title ); +extern void fgPlatformGlutPositionWindow( int x, int y ); +extern void fgPlatformGlutPushWindow( void ); +extern void fgPlatformGlutPopWindow( void ); +extern void fgPlatformGlutFullScreen( SFG_Window *win ); +extern void fgPlatformGlutLeaveFullScreen( SFG_Window *win ); +extern void fgPlatformGlutFullScreenToggle( SFG_Window *win ); + + +/* -- PRIVATE FUNCTIONS ---------------------------------------------------- */ + +int fghIsLegacyContextVersionRequested( void ) +{ + return fgState.MajorVersion < 2 || (fgState.MajorVersion == 2 && fgState.MinorVersion <= 1); +} + +int fghIsLegacyContextRequested( void ) +{ + return fghIsLegacyContextVersionRequested() && + fgState.ContextFlags == 0 && + fgState.ContextProfile == 0; +} + +int fghNumberOfAuxBuffersRequested( void ) +{ + if ( fgState.DisplayMode & GLUT_AUX4 ) { + return 4; + } + if ( fgState.DisplayMode & GLUT_AUX3 ) { + return 3; + } + if ( fgState.DisplayMode & GLUT_AUX2 ) { + return 2; + } + if ( fgState.DisplayMode & GLUT_AUX1 ) { /* NOTE: Same as GLUT_AUX! */ + return fgState.AuxiliaryBufferNumber; + } + return 0; +} + +int fghMapBit( int mask, int from, int to ) +{ + return ( mask & from ) ? to : 0; + +} + +void fghContextCreationError( void ) +{ + fgError( "Unable to create OpenGL %d.%d context (flags %x, profile %x)", + fgState.MajorVersion, fgState.MinorVersion, fgState.ContextFlags, + fgState.ContextProfile ); +} + + +/* -- SYSTEM-DEPENDENT PRIVATE FUNCTIONS ------------------------------------ */ + +/* + * Sets the OpenGL context and the fgStructure "Current Window" pointer to + * the window structure passed in. + */ +void fgSetWindow ( SFG_Window *window ) +{ + fgPlatformSetWindow ( window ); + + fgStructure.CurrentWindow = window; +} + +/* + * Opens a window. Requires a SFG_Window object created and attached + * to the freeglut structure. OpenGL context is created here. + */ +void fgOpenWindow( SFG_Window* window, const char* title, + GLboolean positionUse, int x, int y, + GLboolean sizeUse, int w, int h, + GLboolean gameMode, GLboolean isSubWindow ) +{ + fgPlatformOpenWindow( window, title, + positionUse, x, y, + sizeUse, w, h, + gameMode, isSubWindow ); + + fgSetWindow( window ); + + window->Window.DoubleBuffered = + ( fgState.DisplayMode & GLUT_DOUBLE ) ? 1 : 0; + + if ( ! window->Window.DoubleBuffered ) + { + glDrawBuffer ( GL_FRONT ); + glReadBuffer ( GL_FRONT ); + } +} + +/* + * Closes a window, destroying the frame and OpenGL context + */ +void fgCloseWindow( SFG_Window* window ) +{ + /* if we're in gamemode and we're closing the gamemode window, + * call glutLeaveGameMode first to make sure the gamemode is + * properly closed before closing the window + */ + if (fgStructure.GameModeWindow != NULL && fgStructure.GameModeWindow->ID==window->ID) + glutLeaveGameMode(); + + fgPlatformCloseWindow ( window ); +} + + +/* -- INTERFACE FUNCTIONS -------------------------------------------------- */ + +/* + * Creates a new top-level freeglut window + */ +int FGAPIENTRY glutCreateWindow( const char* title ) +{ + /* XXX GLUT does not exit; it simply calls "glutInit" quietly if the + * XXX application has not already done so. The "freeglut" community + * XXX decided not to go this route (freeglut-developer e-mail from + * XXX Steve Baker, 12/16/04, 4:22 PM CST, "Re: [Freeglut-developer] + * XXX Desired 'freeglut' behaviour when there is no current window" + */ + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutCreateWindow" ); + + return fgCreateWindow( NULL, title, fgState.Position.Use, + fgState.Position.X, fgState.Position.Y, + fgState.Size.Use, fgState.Size.X, fgState.Size.Y, + GL_FALSE, GL_FALSE )->ID; +} + +/* + * This function creates a sub window. + */ +int FGAPIENTRY glutCreateSubWindow( int parentID, int x, int y, int w, int h ) +{ + int ret = 0; + SFG_Window* window = NULL; + SFG_Window* parent = NULL; + + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutCreateSubWindow" ); + parent = fgWindowByID( parentID ); + freeglut_return_val_if_fail( parent != NULL, 0 ); + if ( x < 0 ) + { + x = parent->State.Width + x ; + if ( w >= 0 ) x -= w ; + } + + if ( w < 0 ) w = parent->State.Width - x + w ; + if ( w < 0 ) + { + x += w ; + w = -w ; + } + + if ( y < 0 ) + { + y = parent->State.Height + y ; + if ( h >= 0 ) y -= h ; + } + + if ( h < 0 ) h = parent->State.Height - y + h ; + if ( h < 0 ) + { + y += h ; + h = -h ; + } + + window = fgCreateWindow( parent, "", GL_TRUE, x, y, GL_TRUE, w, h, GL_FALSE, GL_FALSE ); + ret = window->ID; + + return ret; +} + +/* + * Destroys a window and all of its subwindows + */ +void FGAPIENTRY glutDestroyWindow( int windowID ) +{ + SFG_Window* window; + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutDestroyWindow" ); + window = fgWindowByID( windowID ); + freeglut_return_if_fail( window != NULL ); + { + fgExecutionState ExecState = fgState.ExecState; + fgAddToWindowDestroyList( window ); + fgState.ExecState = ExecState; + } +} + +/* + * This function selects the specified window as the current window + */ +void FGAPIENTRY glutSetWindow( int ID ) +{ + SFG_Window* window = NULL; + + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetWindow" ); + if( fgStructure.CurrentWindow != NULL ) + if( fgStructure.CurrentWindow->ID == ID ) + return; + + window = fgWindowByID( ID ); + if( window == NULL ) + { + fgWarning( "glutSetWindow(): window ID %d not found!", ID ); + return; + } + + fgSetWindow( window ); +} + +/* + * This function returns the ID number of the current window, 0 if none exists + */ +int FGAPIENTRY glutGetWindow( void ) +{ + SFG_Window *win = fgStructure.CurrentWindow; + /* + * Since GLUT did not throw an error if this function was called without a prior call to + * "glutInit", this function shouldn't do so here. Instead let us return a zero. + * See Feature Request "[ 1307049 ] glutInit check". + */ + if ( ! fgState.Initialised ) + return 0; + + while ( win && win->IsMenu ) + win = win->Parent; + return win ? win->ID : 0; +} + +/* + * This function makes the current window visible + */ +void FGAPIENTRY glutShowWindow( void ) +{ + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutShowWindow" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutShowWindow" ); + + fgPlatformGlutShowWindow (); + + fgStructure.CurrentWindow->State.Redisplay = GL_TRUE; +} + +/* + * This function hides the current window + */ +void FGAPIENTRY glutHideWindow( void ) +{ + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutHideWindow" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutHideWindow" ); + + fgPlatformGlutHideWindow (); + + fgStructure.CurrentWindow->State.Redisplay = GL_FALSE; +} + +/* + * Iconify the current window (top-level windows only) + */ +void FGAPIENTRY glutIconifyWindow( void ) +{ + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutIconifyWindow" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutIconifyWindow" ); + + fgStructure.CurrentWindow->State.Visible = GL_FALSE; + + fgPlatformGlutIconifyWindow (); + + fgStructure.CurrentWindow->State.Redisplay = GL_FALSE; +} + +/* + * Set the current window's title + */ +void FGAPIENTRY glutSetWindowTitle( const char* title ) +{ + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetWindowTitle" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSetWindowTitle" ); + if( ! fgStructure.CurrentWindow->Parent ) + { + fgPlatformGlutSetWindowTitle ( title ); + } +} + +/* + * Set the current window's iconified title + */ +void FGAPIENTRY glutSetIconTitle( const char* title ) +{ + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetIconTitle" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSetIconTitle" ); + + if( ! fgStructure.CurrentWindow->Parent ) + { + fgPlatformGlutSetIconTitle ( title ); + } +} + +/* + * Change the current window's size + */ +void FGAPIENTRY glutReshapeWindow( int width, int height ) +{ + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutReshapeWindow" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutReshapeWindow" ); + + if (glutGet(GLUT_FULL_SCREEN)) + { + /* Leave full screen state before resizing. */ + glutLeaveFullScreen(); + } + + fgStructure.CurrentWindow->State.NeedToResize = GL_TRUE; + fgStructure.CurrentWindow->State.Width = width ; + fgStructure.CurrentWindow->State.Height = height; +} + +/* + * Change the current window's position + */ +void FGAPIENTRY glutPositionWindow( int x, int y ) +{ + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPositionWindow" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutPositionWindow" ); + + if (glutGet(GLUT_FULL_SCREEN)) + { + /* Leave full screen state before moving. */ + glutLeaveFullScreen(); + } + + fgPlatformGlutPositionWindow ( x, y ); +} + +/* + * Lowers the current window (by Z order change) + */ +void FGAPIENTRY glutPushWindow( void ) +{ + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPushWindow" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutPushWindow" ); + + fgPlatformGlutPushWindow (); +} + +/* + * Raises the current window (by Z order change) + */ +void FGAPIENTRY glutPopWindow( void ) +{ + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutPopWindow" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutPopWindow" ); + + fgPlatformGlutPopWindow (); +} + +/* + * Resize the current window so that it fits the whole screen + */ +void FGAPIENTRY glutFullScreen( void ) +{ + SFG_Window *win; + + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutFullScreen" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutFullScreen" ); + + win = fgStructure.CurrentWindow; + + if (win->Parent) + { + /* Child windows cannot be made fullscreen, consistent with GLUT's behavior + * Also, what would it mean for a child window to be fullscreen, given that it + * is confined to its parent? + */ + fgWarning("glutFullScreen called on a child window, ignoring..."); + return; + } + else if (fgStructure.GameModeWindow != NULL && fgStructure.GameModeWindow->ID==win->ID) + { + /* Ignore fullscreen call on GameMode window, those are always fullscreen already */ + return; + } + + fgPlatformGlutFullScreen ( win ); +} + +/* + * If we are fullscreen, resize the current window back to its original size + */ +void FGAPIENTRY glutLeaveFullScreen( void ) +{ + SFG_Window *win; + + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutFullScreen" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutFullScreen" ); + + win = fgStructure.CurrentWindow; + + fgPlatformGlutLeaveFullScreen ( win ); +} + +/* + * Toggle the window's full screen state. + */ +void FGAPIENTRY glutFullScreenToggle( void ) +{ + SFG_Window *win; + + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutFullScreenToggle" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutFullScreenToggle" ); + + win = fgStructure.CurrentWindow; + + fgPlatformGlutFullScreenToggle ( win ); +} + +/* + * A.Donev: Set and retrieve the window's user data + */ +void* FGAPIENTRY glutGetWindowData( void ) +{ + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGetWindowData" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutGetWindowData" ); + return fgStructure.CurrentWindow->UserData; +} + +void FGAPIENTRY glutSetWindowData(void* data) +{ + FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSetWindowData" ); + FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSetWindowData" ); + fgStructure.CurrentWindow->UserData = data; +} + +/*** END OF FILE ***/