From: John F. Fay Date: Mon, 23 Jan 2012 05:24:34 +0000 (+0000) Subject: Splitting some Windows-specific "freeglut_window.c" functions into their own file X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=commitdiff_plain;h=cf06fb91082cdf943efeef507086ba1d8cee6eb7;p=freeglut Splitting some Windows-specific "freeglut_window.c" functions into their own file git-svn-id: svn+ssh://svn.code.sf.net/p/freeglut/code/trunk/freeglut/freeglut@1002 7f0cb862-5218-0410-a997-914c9d46530a --- diff --git a/src/Common/freeglut_window.c b/src/Common/freeglut_window.c index ac79b85..802cf07 100644 --- a/src/Common/freeglut_window.c +++ b/src/Common/freeglut_window.c @@ -89,58 +89,6 @@ #endif /* TARGET_HOST_POSIX_X11 */ -#if TARGET_HOST_MS_WINDOWS -/* The following include file is available from SGI but is not standard: - * #include - * So we copy the necessary parts out of it. - * XXX: should local definitions for extensions be put in a separate include file? - */ -typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC) (HDC hdc); - -typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATARBPROC) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats); - -#define WGL_DRAW_TO_WINDOW_ARB 0x2001 -#define WGL_ACCELERATION_ARB 0x2003 -#define WGL_SUPPORT_OPENGL_ARB 0x2010 -#define WGL_DOUBLE_BUFFER_ARB 0x2011 -#define WGL_COLOR_BITS_ARB 0x2014 -#define WGL_ALPHA_BITS_ARB 0x201B -#define WGL_DEPTH_BITS_ARB 0x2022 -#define WGL_STENCIL_BITS_ARB 0x2023 -#define WGL_FULL_ACCELERATION_ARB 0x2027 - -#define WGL_SAMPLE_BUFFERS_ARB 0x2041 -#define WGL_SAMPLES_ARB 0x2042 - -#define WGL_TYPE_RGBA_FLOAT_ARB 0x21A0 - -#define WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB 0x20A9 - -#ifndef WGL_ARB_create_context -#define WGL_ARB_create_context 1 -#ifdef WGL_WGLEXT_PROTOTYPES -extern HGLRC WINAPI wglCreateContextAttribsARB (HDC, HGLRC, const int *); -#endif /* WGL_WGLEXT_PROTOTYPES */ -typedef HGLRC (WINAPI * PFNWGLCREATECONTEXTATTRIBSARBPROC) (HDC hDC, HGLRC hShareContext, const int *attribList); - -#define WGL_CONTEXT_MAJOR_VERSION_ARB 0x2091 -#define WGL_CONTEXT_MINOR_VERSION_ARB 0x2092 -#define WGL_CONTEXT_LAYER_PLANE_ARB 0x2093 -#define WGL_CONTEXT_FLAGS_ARB 0x2094 -#define WGL_CONTEXT_PROFILE_MASK_ARB 0x9126 - -#define WGL_CONTEXT_DEBUG_BIT_ARB 0x0001 -#define WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x0002 - -#define WGL_CONTEXT_CORE_PROFILE_BIT_ARB 0x00000001 -#define WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB 0x00000002 - -#define ERROR_INVALID_VERSION_ARB 0x2095 -#define ERROR_INVALID_PROFILE_ARB 0x2096 -#endif - -#endif /* TARGET_HOST_MS_WINDOWS */ - #ifdef WM_TOUCH typedef BOOL (WINAPI *pRegisterTouchWindow)(HWND,ULONG); static pRegisterTouchWindow fghRegisterTouchWindow = (pRegisterTouchWindow)0xDEADBEEF; @@ -173,21 +121,29 @@ typedef HGLRC (WINAPI * PFNWGLCREATECONTEXTATTRIBSARBPROC) (HDC hDC, HGLRC hShar * 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 ); + /* -- PRIVATE FUNCTIONS ---------------------------------------------------- */ -static int fghIsLegacyContextVersionRequested( void ) +int fghIsLegacyContextVersionRequested( void ) { return fgState.MajorVersion < 2 || (fgState.MajorVersion == 2 && fgState.MinorVersion <= 1); } -static int fghIsLegacyContextRequested( void ) +int fghIsLegacyContextRequested( void ) { return fghIsLegacyContextVersionRequested() && fgState.ContextFlags == 0 && fgState.ContextProfile == 0; } -static int fghNumberOfAuxBuffersRequested( void ) +int fghNumberOfAuxBuffersRequested( void ) { if ( fgState.DisplayMode & GLUT_AUX4 ) { return 4; @@ -204,13 +160,13 @@ static int fghNumberOfAuxBuffersRequested( void ) return 0; } -static int fghMapBit( int mask, int from, int to ) +int fghMapBit( int mask, int from, int to ) { return ( mask & from ) ? to : 0; } -static void fghContextCreationError( void ) +void fghContextCreationError( void ) { fgError( "Unable to create OpenGL %d.%d context (flags %x, profile %x)", fgState.MajorVersion, fgState.MinorVersion, fgState.ContextFlags, @@ -548,279 +504,8 @@ static int fghToggleFullscreen(void) return -1; } - -#endif /* TARGET_HOST_POSIX_X11 */ - - -#if TARGET_HOST_MS_WINDOWS -/* - * Setup the pixel format for a Win32 window - */ - -#if defined(_WIN32_WCE) -static wchar_t* fghWstrFromStr(const char* str) +void fgPlatformSetWindow ( SFG_Window *window ) { - int i,len=strlen(str); - wchar_t* wstr = (wchar_t*)malloc(2*len+2); - for(i=0; iWindow.Device, window->Window.Context ); - - if ( !fghIsExtensionSupported( window->Window.Device, "WGL_ARB_create_context" ) ) - { - return; - } - - /* new context creation */ - fghFillContextAttributes( attributes ); - - wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC) wglGetProcAddress( "wglCreateContextAttribsARB" ); - if ( wglCreateContextAttribsARB == NULL ) - { - fgError( "wglCreateContextAttribsARB not found" ); - } - - context = wglCreateContextAttribsARB( window->Window.Device, 0, attributes ); - if ( context == NULL ) - { - fghContextCreationError(); - } - - wglMakeCurrent( NULL, NULL ); - wglDeleteContext( window->Window.Context ); - window->Window.Context = context; -} - -#if !defined(_WIN32_WCE) - -static void fghFillPFD( PIXELFORMATDESCRIPTOR *ppfd, HDC hdc, unsigned char layer_type ) -{ - int flags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL; - if ( fgState.DisplayMode & GLUT_DOUBLE ) { - flags |= PFD_DOUBLEBUFFER; - } - if ( fgState.DisplayMode & GLUT_STEREO ) { - flags |= PFD_STEREO; - } - -#if defined(_MSC_VER) -#pragma message( "fgSetupPixelFormat(): there is still some work to do here!" ) -#endif - - /* Specify which pixel format do we opt for... */ - ppfd->nSize = sizeof(PIXELFORMATDESCRIPTOR); - ppfd->nVersion = 1; - ppfd->dwFlags = flags; - - if( fgState.DisplayMode & GLUT_INDEX ) { - ppfd->iPixelType = PFD_TYPE_COLORINDEX; - ppfd->cRedBits = 0; - ppfd->cGreenBits = 0; - ppfd->cBlueBits = 0; - ppfd->cAlphaBits = 0; - } else { - ppfd->iPixelType = PFD_TYPE_RGBA; - ppfd->cRedBits = 8; - ppfd->cGreenBits = 8; - ppfd->cBlueBits = 8; - ppfd->cAlphaBits = ( fgState.DisplayMode & GLUT_ALPHA ) ? 8 : 0; - } - - ppfd->cColorBits = 24; - ppfd->cRedShift = 0; - ppfd->cGreenShift = 0; - ppfd->cBlueShift = 0; - ppfd->cAlphaShift = 0; - ppfd->cAccumBits = ( fgState.DisplayMode & GLUT_ACCUM ) ? 1 : 0; - ppfd->cAccumRedBits = 0; - ppfd->cAccumGreenBits = 0; - ppfd->cAccumBlueBits = 0; - ppfd->cAccumAlphaBits = 0; - - /* Hmmm, or 32/0 instead of 24/8? */ - ppfd->cDepthBits = 24; - ppfd->cStencilBits = 8; - - ppfd->cAuxBuffers = fghNumberOfAuxBuffersRequested(); - ppfd->iLayerType = layer_type; - ppfd->bReserved = 0; - ppfd->dwLayerMask = 0; - ppfd->dwVisibleMask = 0; - ppfd->dwDamageMask = 0; - - ppfd->cColorBits = (BYTE) GetDeviceCaps( hdc, BITSPIXEL ); -} - -static void fghFillPixelFormatAttributes( int *attributes, const PIXELFORMATDESCRIPTOR *ppfd ) -{ - int where = 0; - - ATTRIB_VAL( WGL_DRAW_TO_WINDOW_ARB, GL_TRUE ); - ATTRIB_VAL( WGL_SUPPORT_OPENGL_ARB, GL_TRUE ); - ATTRIB_VAL( WGL_ACCELERATION_ARB, WGL_FULL_ACCELERATION_ARB ); - - ATTRIB_VAL( WGL_COLOR_BITS_ARB, ppfd->cColorBits ); - ATTRIB_VAL( WGL_ALPHA_BITS_ARB, ppfd->cAlphaBits ); - ATTRIB_VAL( WGL_DEPTH_BITS_ARB, ppfd->cDepthBits ); - ATTRIB_VAL( WGL_STENCIL_BITS_ARB, ppfd->cStencilBits ); - - ATTRIB_VAL( WGL_DOUBLE_BUFFER_ARB, ( fgState.DisplayMode & GLUT_DOUBLE ) != 0 ); - - if ( fgState.DisplayMode & GLUT_SRGB ) { - ATTRIB_VAL( WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB, TRUE ); - } - - ATTRIB_VAL( WGL_SAMPLE_BUFFERS_ARB, GL_TRUE ); - ATTRIB_VAL( WGL_SAMPLES_ARB, fgState.SampleNumber ); - ATTRIB( 0 ); -} -#endif - -GLboolean fgSetupPixelFormat( SFG_Window* window, GLboolean checkOnly, - unsigned char layer_type ) -{ -#if defined(_WIN32_WCE) - return GL_TRUE; -#else - PIXELFORMATDESCRIPTOR pfd; - PIXELFORMATDESCRIPTOR* ppfd = &pfd; - int pixelformat; - HDC current_hDC; - GLboolean success; - - if (checkOnly) - current_hDC = CreateDC(TEXT("DISPLAY"), NULL ,NULL ,NULL); - else - current_hDC = window->Window.Device; - - fghFillPFD( ppfd, current_hDC, layer_type ); - pixelformat = ChoosePixelFormat( current_hDC, ppfd ); - - /* windows hack for multismapling/sRGB */ - if ( ( fgState.DisplayMode & GLUT_MULTISAMPLE ) || - ( fgState.DisplayMode & GLUT_SRGB ) ) - { - HGLRC rc, rc_before=wglGetCurrentContext(); - HWND hWnd; - HDC hDC, hDC_before=wglGetCurrentDC(); - WNDCLASS wndCls; - - /* create a dummy window */ - ZeroMemory(&wndCls, sizeof(wndCls)); - wndCls.lpfnWndProc = DefWindowProc; - wndCls.hInstance = fgDisplay.Instance; - wndCls.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW; - wndCls.lpszClassName = _T("FREEGLUT_dummy"); - RegisterClass( &wndCls ); - - hWnd=CreateWindow(_T("FREEGLUT_dummy"), _T(""), WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_OVERLAPPEDWINDOW , 0,0,0,0, 0, 0, fgDisplay.Instance, 0 ); - hDC=GetDC(hWnd); - SetPixelFormat( hDC, pixelformat, ppfd ); - - rc = wglCreateContext( hDC ); - wglMakeCurrent(hDC, rc); - - if ( fghIsExtensionSupported( hDC, "WGL_ARB_multisample" ) ) - { - PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormatARBProc = - (PFNWGLCHOOSEPIXELFORMATARBPROC) wglGetProcAddress("wglChoosePixelFormatARB"); - if ( wglChoosePixelFormatARBProc ) - { - int attributes[100]; - int iPixelFormat; - BOOL bValid; - float fAttributes[] = { 0, 0 }; - UINT numFormats; - fghFillPixelFormatAttributes( attributes, ppfd ); - bValid = wglChoosePixelFormatARBProc(hDC, attributes, fAttributes, 1, &iPixelFormat, &numFormats); - - if ( bValid && numFormats > 0 ) - { - pixelformat = iPixelFormat; - } - } - } - - wglMakeCurrent( hDC_before, rc_before); - wglDeleteContext(rc); - ReleaseDC(hWnd, hDC); - DestroyWindow(hWnd); - UnregisterClass(_T("FREEGLUT_dummy"), fgDisplay.Instance); - } - - success = ( pixelformat != 0 ) && ( checkOnly || SetPixelFormat( current_hDC, pixelformat, ppfd ) ); - - if (checkOnly) - DeleteDC(current_hDC); - - return success; -#endif /* defined(_WIN32_WCE) */ -} - -#endif /* TARGET_HOST_MS_WINDOWS */ - -/* - * Sets the OpenGL context and the fgStructure "Current Window" pointer to - * the window structure passed in. - */ -void fgSetWindow ( SFG_Window *window ) -{ -#if TARGET_HOST_POSIX_X11 if ( window ) { glXMakeContextCurrent( @@ -830,270 +515,18 @@ void fgSetWindow ( SFG_Window *window ) window->Window.Context ); } -#elif TARGET_HOST_MS_WINDOWS - if ( window != fgStructure.CurrentWindow ) - { - if( fgStructure.CurrentWindow ) - ReleaseDC( fgStructure.CurrentWindow->Window.Handle, - fgStructure.CurrentWindow->Window.Device ); - - if ( window ) - { - window->Window.Device = GetDC( window->Window.Handle ); - wglMakeCurrent( - window->Window.Device, - window->Window.Context - ); - } - } -#endif - fgStructure.CurrentWindow = window; -} - -#if TARGET_HOST_MS_WINDOWS - -/* Computes position of corners of window Rect (outer position including - * decorations) based on the provided client rect and based on the style - * of the window in question. - * If posIsOutside is set to true, the input client Rect is taken to follow - * freeGLUT's window specification convention in which the top-left corner - * is at the outside of the window, while the size - * (rect.right-rect.left,rect.bottom-rect.top) is the size of the drawable - * area. - */ -void fghComputeWindowRectFromClientArea_UseStyle( const DWORD windowStyle, RECT *clientRect, BOOL posIsOutside ) -{ - int xBorderWidth = 0, yBorderWidth = 0; - - /* If window has title bar, correct rect for it */ - if (windowStyle & WS_MAXIMIZEBOX) /* Need to query for WS_MAXIMIZEBOX to see if we have a title bar, the WS_CAPTION query is also true for a WS_DLGFRAME only... */ - if (posIsOutside) - clientRect->bottom += GetSystemMetrics( SM_CYCAPTION ); - else - clientRect->top -= GetSystemMetrics( SM_CYCAPTION ); - - /* get width of window's borders (frame), correct rect for it. - * Note, borders can be of zero width if style does not specify borders - */ - fghGetBorderWidth(windowStyle, &xBorderWidth, &yBorderWidth); - if (posIsOutside) - { - clientRect->right += xBorderWidth * 2; - clientRect->bottom += yBorderWidth * 2; - } - else - { - clientRect->left -= xBorderWidth; - clientRect->right += xBorderWidth; - clientRect->top -= yBorderWidth; - clientRect->bottom += yBorderWidth; - } -} - -/* Computes position of corners of window Rect (outer position including - * decorations) based on the provided client rect and based on the style - * of the window in question. If the window pointer or the window handle - * is NULL, a fully decorated window (caption and border) is assumed. - * Furthermore, if posIsOutside is set to true, the input client Rect is - * taken to follow freeGLUT's window specification convention in which the - * top-left corner is at the outside of the window, while the size - * (rect.right-rect.left,rect.bottom-rect.top) is the size of the drawable - * area. -*/ -void fghComputeWindowRectFromClientArea_QueryWindow( const SFG_Window *window, RECT *clientRect, BOOL posIsOutside ) -{ - DWORD windowStyle = 0; - - if (window && window->Window.Handle) - windowStyle = GetWindowLong(window->Window.Handle, GWL_STYLE); - else - windowStyle = WS_OVERLAPPEDWINDOW; - - fghComputeWindowRectFromClientArea_UseStyle(windowStyle, clientRect, posIsOutside); -} - -/* Computes position of corners of client area (drawable area) of a window - * based on the provided window Rect (outer position including decorations) - * and based on the style of the window in question. If the window pointer - * or the window handle is NULL, a fully decorated window (caption and - * border) is assumed. - * Furthermore, if wantPosOutside is set to true, the output client Rect - * will follow freeGLUT's window specification convention in which the - * top-left corner is at the outside of the window, the size - * (rect.right-rect.left,rect.bottom-rect.top) is the size of the drawable - * area. - */ -void fghComputeClientAreaFromWindowRect( const SFG_Window *window, RECT *windowRect, BOOL wantPosOutside ) -{ - DWORD windowStyle = 0; - int xBorderWidth = 0, yBorderWidth = 0; - - if (window && window->Window.Handle) - windowStyle = GetWindowLong(window->Window.Handle, GWL_STYLE); - else - windowStyle = WS_OVERLAPPEDWINDOW; - - /* If window has title bar, correct rect for it */ - if (windowStyle & WS_MAXIMIZEBOX) /* Need to query for WS_MAXIMIZEBOX to see if we have a title bar, the WS_CAPTION query is also true for a WS_DLGFRAME only... */ - if (wantPosOutside) - windowRect->bottom -= GetSystemMetrics( SM_CYCAPTION ); - else - windowRect->top += GetSystemMetrics( SM_CYCAPTION ); - - /* get width of window's borders (frame), correct rect for it. - * Note, borders can be of zero width if style does not specify borders - */ - fghGetBorderWidth(windowStyle, &xBorderWidth, &yBorderWidth); - if (wantPosOutside) - { - windowRect->right -= xBorderWidth * 2; - windowRect->bottom -= yBorderWidth * 2; - } - else - { - windowRect->left += xBorderWidth; - windowRect->right -= xBorderWidth; - windowRect->top += yBorderWidth; - windowRect->bottom -= yBorderWidth; - } } -/* Gets the rect describing the client area (drawable area) of the - * specified window. - * Returns an empty rect if window pointer or window handle is NULL. - * If wantPosOutside is set to true, the output client Rect - * will follow freeGLUT's window specification convention in which the - * top-left corner is at the outside of the window, while the size - * (rect.right-rect.left,rect.bottom-rect.top) is the size of the drawable - * area. - */ -RECT fghGetClientArea( const SFG_Window *window, BOOL wantPosOutside ) -{ - RECT windowRect = {0,0,0,0}; - - freeglut_return_val_if_fail((window && window->Window.Handle),windowRect); - - /* - * call GetWindowRect() - * (this returns the pixel coordinates of the outside of the window) - */ - GetWindowRect( window->Window.Handle, &windowRect ); - - /* Then correct the results */ - fghComputeClientAreaFromWindowRect(window, &windowRect, wantPosOutside); - - return windowRect; -} - -/* Returns the width of the window borders based on the window's style. - */ -void fghGetBorderWidth(const DWORD windowStyle, int* xBorderWidth, int* yBorderWidth) -{ - if (windowStyle & WS_THICKFRAME) - { - *xBorderWidth = GetSystemMetrics(SM_CXSIZEFRAME); - *yBorderWidth = GetSystemMetrics(SM_CYSIZEFRAME); - } - else if (windowStyle & WS_DLGFRAME) - { - *xBorderWidth = GetSystemMetrics(SM_CXFIXEDFRAME); - *yBorderWidth = GetSystemMetrics(SM_CYFIXEDFRAME); - } - else - { - *xBorderWidth = 0; - *yBorderWidth = 0; - } -} - -#if(WINVER >= 0x500) -typedef struct -{ - int *x; - int *y; - const char *name; -} m_proc_t; - -static BOOL CALLBACK m_proc(HMONITOR mon, - HDC hdc, - LPRECT rect, - LPARAM data) -{ - m_proc_t *dp=(m_proc_t *)data; - MONITORINFOEX info; - BOOL res; - info.cbSize=sizeof(info); - res=GetMonitorInfo(mon,(LPMONITORINFO)&info); - if( res ) - { - if( strcmp(dp->name,info.szDevice)==0 ) - { - *(dp->x)=info.rcMonitor.left; - *(dp->y)=info.rcMonitor.top; - return FALSE; - } - } - return TRUE; -} - -/* - * this function returns the origin of the screen identified by - * fgDisplay.DisplayName, and 0 otherwise. - * This is used in fgOpenWindow to open the gamemode window on the screen - * identified by the -display command line argument. The function should - * not be called otherwise. - */ - -static void get_display_origin(int *xp,int *yp) -{ - *xp = 0; - *yp = 0; - - if( fgDisplay.DisplayName ) - { - m_proc_t st; - st.x=xp; - st.y=yp; - st.name=fgDisplay.DisplayName; - EnumDisplayMonitors(0,0,m_proc,(LPARAM)&st); - } -} -#else -#pragma message( "-display parameter only works if compiled with WINVER >= 0x0500") - -static void get_display_origin(int *xp,int *yp) -{ - *xp = 0; - *yp = 0; - - if( fgDisplay.DisplayName ) - { - fgWarning( "for working -display support FreeGLUT must be compiled with WINVER >= 0x0500"); - } -} -#endif -#endif - - -#if TARGET_HOST_POSIX_X11 -static Bool fghWindowIsVisible( Display *display, XEvent *event, XPointer arg) -{ - Window window = (Window)arg; - return (event->type == MapNotify) && (event->xmap.window == window); -} -#endif - /* * 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 ) +void fgPlatformOpenWindow( SFG_Window* window, const char* title, + GLboolean positionUse, int x, int y, + GLboolean sizeUse, int w, int h, + GLboolean gameMode, GLboolean isSubWindow ) { -#if TARGET_HOST_POSIX_X11 XVisualInfo * visualInfo = NULL; XSetWindowAttributes winAttr; XTextProperty textProperty; @@ -1300,203 +733,61 @@ void fgOpenWindow( SFG_Window* window, const char* title, if( !isSubWindow) XPeekIfEvent( fgDisplay.Display, &eventReturnBuffer, &fghWindowIsVisible, (XPointer)(window->Window.Handle) ); +} -#elif TARGET_HOST_MS_WINDOWS - - WNDCLASS wc; - DWORD flags = 0; - DWORD exFlags = 0; - ATOM atom; - - /* Grab the window class we have registered on glutInit(): */ - atom = GetClassInfo( fgDisplay.Instance, _T("FREEGLUT"), &wc ); - FREEGLUT_INTERNAL_ERROR_EXIT ( atom, "Window Class Info Not Found", - "fgOpenWindow" ); - - /* Determine window style flags*/ - if( gameMode ) - { - FREEGLUT_INTERNAL_ERROR_EXIT ( window->Parent == NULL, - "Game mode being invoked on a subwindow", - "fgOpenWindow" ); - - /* - * Set the window creation flags appropriately to make the window - * entirely visible: - */ - flags = WS_POPUP | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_VISIBLE; - } - else - { - flags = WS_CLIPSIBLINGS | WS_CLIPCHILDREN; - - /* - * There's a small difference between creating the top, child and - * menu windows - */ - if ( window->IsMenu ) - { - flags |= WS_POPUP; - exFlags |= WS_EX_TOOLWINDOW; - } -#if defined(_WIN32_WCE) - /* no decorations for windows CE */ -#else - /* if this is not a subwindow (child), set its style based on the requested display mode */ - else if( window->Parent == NULL ) - if ( fgState.DisplayMode & GLUT_BORDERLESS ) - { - /* no window decorations needed */ - } - else if ( fgState.DisplayMode & GLUT_CAPTIONLESS ) - /* only window decoration is a border, no title bar or buttons */ - flags |= WS_DLGFRAME; - else - /* window decoration are a border, title bar and buttons. - * NB: we later query whether the window has a title bar or - * not by testing for the maximize button, as the test for - * WS_CAPTION can be true without the window having a title - * bar. This style WS_OVERLAPPEDWINDOW gives you a maximize - * button. */ - flags |= WS_OVERLAPPEDWINDOW; -#endif - else - /* subwindows always have no decoration, but are marked as a child window to the OS */ - flags |= WS_CHILD; - } - - /* determine window size and position */ - if( gameMode ) - { - /* if in gamemode, query the origin of specified by the -display - * command line parameter (if any) and offset the upper-left corner - * of the window so we create the window on that screen. - * The -display argument doesn't do anything if not trying to enter - * gamemode. - */ - int xoff=0, yoff=0; - get_display_origin(&xoff,&yoff); - x += xoff; - y += yoff; - } - if( !positionUse ) - { - x = CW_USEDEFAULT; - y = CW_USEDEFAULT; - } - if( !sizeUse ) - { - if( ! window->IsMenu ) - { - w = CW_USEDEFAULT; - h = CW_USEDEFAULT; - } - else /* fail safe - Windows can make a window of size (0, 0) */ - w = h = 300; /* default window size */ - } - /* store requested client area width and height */ - window->State.Width = w; - window->State.Height = h; - -#if !defined(_WIN32_WCE) /* no decorations for windows CE */ - if( sizeUse ) - { - RECT windowRect; - /* - * Update the window dimensions, taking the window decorations - * into account. FreeGLUT is to create the window with the - * topleft outside corner at (x,y) and with client area - * dimensions (w,h). - * note: don't need to do this when w=h=CW_USEDEFAULT, so in the - * if( sizeUse ) here is convenient. - */ - windowRect.left = x; - windowRect.top = y; - windowRect.right = x+w; - windowRect.bottom = y+h; - fghComputeWindowRectFromClientArea_UseStyle(flags,&windowRect,TRUE); +/* + * Closes a window, destroying the frame and OpenGL context + */ +void fgPlatformCloseWindow( SFG_Window* window ) +{ + if( window->Window.Context ) + glXDestroyContext( fgDisplay.Display, window->Window.Context ); + XFree( window->Window.FBConfig ); - w = windowRect.right - windowRect.left; - h = windowRect.bottom- windowRect.top; + if( window->Window.Handle ) { + XDestroyWindow( fgDisplay.Display, window->Window.Handle ); } -#endif /* !defined(_WIN32_WCE) */ - -#if defined(_WIN32_WCE) - { - wchar_t* wstr = fghWstrFromStr(title); - - window->Window.Handle = CreateWindow( - _T("FREEGLUT"), - wstr, - WS_VISIBLE | WS_POPUP, - 0,0, 240,320, - NULL, - NULL, - fgDisplay.Instance, - (LPVOID) window - ); - - free(wstr); + /* XFlush( fgDisplay.Display ); */ /* XXX Shouldn't need this */ +} - SHFullScreen(window->Window.Handle, SHFS_HIDESTARTICON); - SHFullScreen(window->Window.Handle, SHFS_HIDESIPBUTTON); - SHFullScreen(window->Window.Handle, SHFS_HIDETASKBAR); - MoveWindow(window->Window.Handle, 0, 0, 240, 320, TRUE); - ShowWindow(window->Window.Handle, SW_SHOW); - UpdateWindow(window->Window.Handle); - } -#else - window->Window.Handle = CreateWindowEx( - exFlags, - _T("FREEGLUT"), - title, - flags, - x, y, w, h, - (HWND) window->Parent == NULL ? NULL : window->Parent->Window.Handle, - (HMENU) NULL, - fgDisplay.Instance, - (LPVOID) window - ); -#endif /* defined(_WIN32_WCE) */ +#endif /* TARGET_HOST_POSIX_X11 */ - if( !( window->Window.Handle ) ) - fgError( "Failed to create a window (%s)!", title ); -#if !defined(_WIN32_WCE) - /* Need to set requested style again, apparently Windows doesn't listen when requesting windows without title bar or borders */ - SetWindowLong(window->Window.Handle, GWL_STYLE, flags); - SetWindowPos(window->Window.Handle, HWND_TOP, 0,0,0,0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED); -#endif /* defined(_WIN32_WCE) */ +/* + * Sets the OpenGL context and the fgStructure "Current Window" pointer to + * the window structure passed in. + */ +void fgSetWindow ( SFG_Window *window ) +{ + fgPlatformSetWindow ( window ); - /* Make a menu window always on top - fix Feature Request 947118 */ - if( window->IsMenu || gameMode ) - SetWindowPos( - window->Window.Handle, - HWND_TOPMOST, - 0, 0, 0, 0, - SWP_NOMOVE | SWP_NOSIZE - ); + fgStructure.CurrentWindow = window; +} - /* Enable multitouch: additional flag TWF_FINETOUCH, TWF_WANTPALM */ - #ifdef WM_TOUCH - if (fghRegisterTouchWindow == (pRegisterTouchWindow)0xDEADBEEF) - fghRegisterTouchWindow = (pRegisterTouchWindow)GetProcAddress(GetModuleHandle("user32"),"RegisterTouchWindow"); - if (fghRegisterTouchWindow) - fghRegisterTouchWindow( window->Window.Handle, TWF_FINETOUCH | TWF_WANTPALM ); - #endif -#if defined(_WIN32_WCE) - ShowWindow( window->Window.Handle, SW_SHOW ); -#else - ShowWindow( window->Window.Handle, - fgState.ForceIconic ? SW_SHOWMINIMIZED : SW_SHOW ); -#endif /* defined(_WIN32_WCE) */ +#if TARGET_HOST_POSIX_X11 +static Bool fghWindowIsVisible( Display *display, XEvent *event, XPointer arg) +{ + Window window = (Window)arg; + return (event->type == MapNotify) && (event->xmap.window == window); +} +#endif - UpdateWindow( window->Window.Handle ); - ShowCursor( TRUE ); /* XXX Old comments say "hide cursor"! */ -#endif +/* + * 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 ); @@ -1522,46 +813,7 @@ void fgCloseWindow( SFG_Window* window ) if (fgStructure.GameModeWindow != NULL && fgStructure.GameModeWindow->ID==window->ID) glutLeaveGameMode(); -#if TARGET_HOST_POSIX_X11 - - if( window->Window.Context ) - glXDestroyContext( fgDisplay.Display, window->Window.Context ); - XFree( window->Window.FBConfig ); - - if( window->Window.Handle ) { - XDestroyWindow( fgDisplay.Display, window->Window.Handle ); - } - /* XFlush( fgDisplay.Display ); */ /* XXX Shouldn't need this */ - -#elif TARGET_HOST_MS_WINDOWS - - /* Make sure we don't close a window with current context active */ - if( fgStructure.CurrentWindow == window ) - wglMakeCurrent( NULL, NULL ); - - /* - * Step through the list of windows. If the rendering context - * is not being used by another window, then we delete it. - */ - { - int used = FALSE ; - SFG_Window *iter ; - - 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; - } - - if( ! used ) - wglDeleteContext( window->Window.Context ); - } - - DestroyWindow( window->Window.Handle ); -#endif + fgPlatformCloseWindow ( window ); } diff --git a/src/mswin/freeglut_window_mswin.c b/src/mswin/freeglut_window_mswin.c index e69de29..6aaeb7d 100644 --- a/src/mswin/freeglut_window_mswin.c +++ b/src/mswin/freeglut_window_mswin.c @@ -0,0 +1,839 @@ +/* + * freeglut_window_mswin.c + * + * The Windows-specific mouse cursor related stuff. + * + * Copyright (c) 2012 Stephen J. Baker. All Rights Reserved. + * Written by John F. Fay, + * Creation date: Sun Jan 22, 2012 + * + * 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. + */ + +#include +#include "freeglut_internal_mswin.h" + + +/* The following include file is available from SGI but is not standard: + * #include + * So we copy the necessary parts out of it. + * XXX: should local definitions for extensions be put in a separate include file? + */ +typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC) (HDC hdc); + +typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATARBPROC) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats); + +#define WGL_DRAW_TO_WINDOW_ARB 0x2001 +#define WGL_ACCELERATION_ARB 0x2003 +#define WGL_SUPPORT_OPENGL_ARB 0x2010 +#define WGL_DOUBLE_BUFFER_ARB 0x2011 +#define WGL_COLOR_BITS_ARB 0x2014 +#define WGL_ALPHA_BITS_ARB 0x201B +#define WGL_DEPTH_BITS_ARB 0x2022 +#define WGL_STENCIL_BITS_ARB 0x2023 +#define WGL_FULL_ACCELERATION_ARB 0x2027 + +#define WGL_SAMPLE_BUFFERS_ARB 0x2041 +#define WGL_SAMPLES_ARB 0x2042 + +#define WGL_TYPE_RGBA_FLOAT_ARB 0x21A0 + +#define WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB 0x20A9 + +#ifndef WGL_ARB_create_context +#define WGL_ARB_create_context 1 +#ifdef WGL_WGLEXT_PROTOTYPES +extern HGLRC WINAPI wglCreateContextAttribsARB (HDC, HGLRC, const int *); +#endif /* WGL_WGLEXT_PROTOTYPES */ +typedef HGLRC (WINAPI * PFNWGLCREATECONTEXTATTRIBSARBPROC) (HDC hDC, HGLRC hShareContext, const int *attribList); + +#define WGL_CONTEXT_MAJOR_VERSION_ARB 0x2091 +#define WGL_CONTEXT_MINOR_VERSION_ARB 0x2092 +#define WGL_CONTEXT_LAYER_PLANE_ARB 0x2093 +#define WGL_CONTEXT_FLAGS_ARB 0x2094 +#define WGL_CONTEXT_PROFILE_MASK_ARB 0x9126 + +#define WGL_CONTEXT_DEBUG_BIT_ARB 0x0001 +#define WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x0002 + +#define WGL_CONTEXT_CORE_PROFILE_BIT_ARB 0x00000001 +#define WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB 0x00000002 + +#define ERROR_INVALID_VERSION_ARB 0x2095 +#define ERROR_INVALID_PROFILE_ARB 0x2096 +#endif +/* End of copying the necessary parts out of it. */ + +/* pushing attribute/value pairs into an array */ +#define ATTRIB(a) attributes[where++]=(a) +#define ATTRIB_VAL(a,v) {ATTRIB(a); ATTRIB(v);} + + +extern int fghIsLegacyContextVersionRequested( void ); +extern int fghMapBit( int mask, int from, int to ); +extern int fghIsLegacyContextRequested( void ); +extern void fghContextCreationError( void ); +extern int fghNumberOfAuxBuffersRequested( void ); + + +/* + * Setup the pixel format for a Win32 window + */ + +#if defined(_WIN32_WCE) +static wchar_t* fghWstrFromStr(const char* str) +{ + int i,len=strlen(str); + wchar_t* wstr = (wchar_t*)malloc(2*len+2); + for(i=0; iWindow.Device, window->Window.Context ); + + if ( !fghIsExtensionSupported( window->Window.Device, "WGL_ARB_create_context" ) ) + { + return; + } + + /* new context creation */ + fghFillContextAttributes( attributes ); + + wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC) wglGetProcAddress( "wglCreateContextAttribsARB" ); + if ( wglCreateContextAttribsARB == NULL ) + { + fgError( "wglCreateContextAttribsARB not found" ); + } + + context = wglCreateContextAttribsARB( window->Window.Device, 0, attributes ); + if ( context == NULL ) + { + fghContextCreationError(); + } + + wglMakeCurrent( NULL, NULL ); + wglDeleteContext( window->Window.Context ); + window->Window.Context = context; +} + +#if !defined(_WIN32_WCE) + +static void fghFillPFD( PIXELFORMATDESCRIPTOR *ppfd, HDC hdc, unsigned char layer_type ) +{ + int flags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL; + if ( fgState.DisplayMode & GLUT_DOUBLE ) { + flags |= PFD_DOUBLEBUFFER; + } + if ( fgState.DisplayMode & GLUT_STEREO ) { + flags |= PFD_STEREO; + } + +#if defined(_MSC_VER) +#pragma message( "fgSetupPixelFormat(): there is still some work to do here!" ) +#endif + + /* Specify which pixel format do we opt for... */ + ppfd->nSize = sizeof(PIXELFORMATDESCRIPTOR); + ppfd->nVersion = 1; + ppfd->dwFlags = flags; + + if( fgState.DisplayMode & GLUT_INDEX ) { + ppfd->iPixelType = PFD_TYPE_COLORINDEX; + ppfd->cRedBits = 0; + ppfd->cGreenBits = 0; + ppfd->cBlueBits = 0; + ppfd->cAlphaBits = 0; + } else { + ppfd->iPixelType = PFD_TYPE_RGBA; + ppfd->cRedBits = 8; + ppfd->cGreenBits = 8; + ppfd->cBlueBits = 8; + ppfd->cAlphaBits = ( fgState.DisplayMode & GLUT_ALPHA ) ? 8 : 0; + } + + ppfd->cColorBits = 24; + ppfd->cRedShift = 0; + ppfd->cGreenShift = 0; + ppfd->cBlueShift = 0; + ppfd->cAlphaShift = 0; + ppfd->cAccumBits = ( fgState.DisplayMode & GLUT_ACCUM ) ? 1 : 0; + ppfd->cAccumRedBits = 0; + ppfd->cAccumGreenBits = 0; + ppfd->cAccumBlueBits = 0; + ppfd->cAccumAlphaBits = 0; + + /* Hmmm, or 32/0 instead of 24/8? */ + ppfd->cDepthBits = 24; + ppfd->cStencilBits = 8; + + ppfd->cAuxBuffers = fghNumberOfAuxBuffersRequested(); + ppfd->iLayerType = layer_type; + ppfd->bReserved = 0; + ppfd->dwLayerMask = 0; + ppfd->dwVisibleMask = 0; + ppfd->dwDamageMask = 0; + + ppfd->cColorBits = (BYTE) GetDeviceCaps( hdc, BITSPIXEL ); +} + +static void fghFillPixelFormatAttributes( int *attributes, const PIXELFORMATDESCRIPTOR *ppfd ) +{ + int where = 0; + + ATTRIB_VAL( WGL_DRAW_TO_WINDOW_ARB, GL_TRUE ); + ATTRIB_VAL( WGL_SUPPORT_OPENGL_ARB, GL_TRUE ); + ATTRIB_VAL( WGL_ACCELERATION_ARB, WGL_FULL_ACCELERATION_ARB ); + + ATTRIB_VAL( WGL_COLOR_BITS_ARB, ppfd->cColorBits ); + ATTRIB_VAL( WGL_ALPHA_BITS_ARB, ppfd->cAlphaBits ); + ATTRIB_VAL( WGL_DEPTH_BITS_ARB, ppfd->cDepthBits ); + ATTRIB_VAL( WGL_STENCIL_BITS_ARB, ppfd->cStencilBits ); + + ATTRIB_VAL( WGL_DOUBLE_BUFFER_ARB, ( fgState.DisplayMode & GLUT_DOUBLE ) != 0 ); + + if ( fgState.DisplayMode & GLUT_SRGB ) { + ATTRIB_VAL( WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB, TRUE ); + } + + ATTRIB_VAL( WGL_SAMPLE_BUFFERS_ARB, GL_TRUE ); + ATTRIB_VAL( WGL_SAMPLES_ARB, fgState.SampleNumber ); + ATTRIB( 0 ); +} +#endif + +GLboolean fgSetupPixelFormat( SFG_Window* window, GLboolean checkOnly, + unsigned char layer_type ) +{ +#if defined(_WIN32_WCE) + return GL_TRUE; +#else + PIXELFORMATDESCRIPTOR pfd; + PIXELFORMATDESCRIPTOR* ppfd = &pfd; + int pixelformat; + HDC current_hDC; + GLboolean success; + + if (checkOnly) + current_hDC = CreateDC(TEXT("DISPLAY"), NULL ,NULL ,NULL); + else + current_hDC = window->Window.Device; + + fghFillPFD( ppfd, current_hDC, layer_type ); + pixelformat = ChoosePixelFormat( current_hDC, ppfd ); + + /* windows hack for multismapling/sRGB */ + if ( ( fgState.DisplayMode & GLUT_MULTISAMPLE ) || + ( fgState.DisplayMode & GLUT_SRGB ) ) + { + HGLRC rc, rc_before=wglGetCurrentContext(); + HWND hWnd; + HDC hDC, hDC_before=wglGetCurrentDC(); + WNDCLASS wndCls; + + /* create a dummy window */ + ZeroMemory(&wndCls, sizeof(wndCls)); + wndCls.lpfnWndProc = DefWindowProc; + wndCls.hInstance = fgDisplay.Instance; + wndCls.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW; + wndCls.lpszClassName = _T("FREEGLUT_dummy"); + RegisterClass( &wndCls ); + + hWnd=CreateWindow(_T("FREEGLUT_dummy"), _T(""), WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_OVERLAPPEDWINDOW , 0,0,0,0, 0, 0, fgDisplay.Instance, 0 ); + hDC=GetDC(hWnd); + SetPixelFormat( hDC, pixelformat, ppfd ); + + rc = wglCreateContext( hDC ); + wglMakeCurrent(hDC, rc); + + if ( fghIsExtensionSupported( hDC, "WGL_ARB_multisample" ) ) + { + PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormatARBProc = + (PFNWGLCHOOSEPIXELFORMATARBPROC) wglGetProcAddress("wglChoosePixelFormatARB"); + if ( wglChoosePixelFormatARBProc ) + { + int attributes[100]; + int iPixelFormat; + BOOL bValid; + float fAttributes[] = { 0, 0 }; + UINT numFormats; + fghFillPixelFormatAttributes( attributes, ppfd ); + bValid = wglChoosePixelFormatARBProc(hDC, attributes, fAttributes, 1, &iPixelFormat, &numFormats); + + if ( bValid && numFormats > 0 ) + { + pixelformat = iPixelFormat; + } + } + } + + wglMakeCurrent( hDC_before, rc_before); + wglDeleteContext(rc); + ReleaseDC(hWnd, hDC); + DestroyWindow(hWnd); + UnregisterClass(_T("FREEGLUT_dummy"), fgDisplay.Instance); + } + + success = ( pixelformat != 0 ) && ( checkOnly || SetPixelFormat( current_hDC, pixelformat, ppfd ) ); + + if (checkOnly) + DeleteDC(current_hDC); + + return success; +#endif /* defined(_WIN32_WCE) */ +} + + + +void fgPlatformSetWindow ( SFG_Window *window ) +{ + if ( window != fgStructure.CurrentWindow ) + { + if( fgStructure.CurrentWindow ) + ReleaseDC( fgStructure.CurrentWindow->Window.Handle, + fgStructure.CurrentWindow->Window.Device ); + + if ( window ) + { + window->Window.Device = GetDC( window->Window.Handle ); + wglMakeCurrent( + window->Window.Device, + window->Window.Context + ); + } + } +} + + + +/* Computes position of corners of window Rect (outer position including + * decorations) based on the provided client rect and based on the style + * of the window in question. + * If posIsOutside is set to true, the input client Rect is taken to follow + * freeGLUT's window specification convention in which the top-left corner + * is at the outside of the window, while the size + * (rect.right-rect.left,rect.bottom-rect.top) is the size of the drawable + * area. + */ +void fghComputeWindowRectFromClientArea_UseStyle( const DWORD windowStyle, RECT *clientRect, BOOL posIsOutside ) +{ + int xBorderWidth = 0, yBorderWidth = 0; + + /* If window has title bar, correct rect for it */ + if (windowStyle & WS_MAXIMIZEBOX) /* Need to query for WS_MAXIMIZEBOX to see if we have a title bar, the WS_CAPTION query is also true for a WS_DLGFRAME only... */ + if (posIsOutside) + clientRect->bottom += GetSystemMetrics( SM_CYCAPTION ); + else + clientRect->top -= GetSystemMetrics( SM_CYCAPTION ); + + /* get width of window's borders (frame), correct rect for it. + * Note, borders can be of zero width if style does not specify borders + */ + fghGetBorderWidth(windowStyle, &xBorderWidth, &yBorderWidth); + if (posIsOutside) + { + clientRect->right += xBorderWidth * 2; + clientRect->bottom += yBorderWidth * 2; + } + else + { + clientRect->left -= xBorderWidth; + clientRect->right += xBorderWidth; + clientRect->top -= yBorderWidth; + clientRect->bottom += yBorderWidth; + } +} + +/* Computes position of corners of window Rect (outer position including + * decorations) based on the provided client rect and based on the style + * of the window in question. If the window pointer or the window handle + * is NULL, a fully decorated window (caption and border) is assumed. + * Furthermore, if posIsOutside is set to true, the input client Rect is + * taken to follow freeGLUT's window specification convention in which the + * top-left corner is at the outside of the window, while the size + * (rect.right-rect.left,rect.bottom-rect.top) is the size of the drawable + * area. +*/ +void fghComputeWindowRectFromClientArea_QueryWindow( const SFG_Window *window, RECT *clientRect, BOOL posIsOutside ) +{ + DWORD windowStyle = 0; + + if (window && window->Window.Handle) + windowStyle = GetWindowLong(window->Window.Handle, GWL_STYLE); + else + windowStyle = WS_OVERLAPPEDWINDOW; + + fghComputeWindowRectFromClientArea_UseStyle(windowStyle, clientRect, posIsOutside); +} + +/* Computes position of corners of client area (drawable area) of a window + * based on the provided window Rect (outer position including decorations) + * and based on the style of the window in question. If the window pointer + * or the window handle is NULL, a fully decorated window (caption and + * border) is assumed. + * Furthermore, if wantPosOutside is set to true, the output client Rect + * will follow freeGLUT's window specification convention in which the + * top-left corner is at the outside of the window, the size + * (rect.right-rect.left,rect.bottom-rect.top) is the size of the drawable + * area. + */ +void fghComputeClientAreaFromWindowRect( const SFG_Window *window, RECT *windowRect, BOOL wantPosOutside ) +{ + DWORD windowStyle = 0; + int xBorderWidth = 0, yBorderWidth = 0; + + if (window && window->Window.Handle) + windowStyle = GetWindowLong(window->Window.Handle, GWL_STYLE); + else + windowStyle = WS_OVERLAPPEDWINDOW; + + /* If window has title bar, correct rect for it */ + if (windowStyle & WS_MAXIMIZEBOX) /* Need to query for WS_MAXIMIZEBOX to see if we have a title bar, the WS_CAPTION query is also true for a WS_DLGFRAME only... */ + if (wantPosOutside) + windowRect->bottom -= GetSystemMetrics( SM_CYCAPTION ); + else + windowRect->top += GetSystemMetrics( SM_CYCAPTION ); + + /* get width of window's borders (frame), correct rect for it. + * Note, borders can be of zero width if style does not specify borders + */ + fghGetBorderWidth(windowStyle, &xBorderWidth, &yBorderWidth); + if (wantPosOutside) + { + windowRect->right -= xBorderWidth * 2; + windowRect->bottom -= yBorderWidth * 2; + } + else + { + windowRect->left += xBorderWidth; + windowRect->right -= xBorderWidth; + windowRect->top += yBorderWidth; + windowRect->bottom -= yBorderWidth; + } +} + +/* Gets the rect describing the client area (drawable area) of the + * specified window. + * Returns an empty rect if window pointer or window handle is NULL. + * If wantPosOutside is set to true, the output client Rect + * will follow freeGLUT's window specification convention in which the + * top-left corner is at the outside of the window, while the size + * (rect.right-rect.left,rect.bottom-rect.top) is the size of the drawable + * area. + */ +RECT fghGetClientArea( const SFG_Window *window, BOOL wantPosOutside ) +{ + RECT windowRect = {0,0,0,0}; + + freeglut_return_val_if_fail((window && window->Window.Handle),windowRect); + + /* + * call GetWindowRect() + * (this returns the pixel coordinates of the outside of the window) + */ + GetWindowRect( window->Window.Handle, &windowRect ); + + /* Then correct the results */ + fghComputeClientAreaFromWindowRect(window, &windowRect, wantPosOutside); + + return windowRect; +} + +/* Returns the width of the window borders based on the window's style. + */ +void fghGetBorderWidth(const DWORD windowStyle, int* xBorderWidth, int* yBorderWidth) +{ + if (windowStyle & WS_THICKFRAME) + { + *xBorderWidth = GetSystemMetrics(SM_CXSIZEFRAME); + *yBorderWidth = GetSystemMetrics(SM_CYSIZEFRAME); + } + else if (windowStyle & WS_DLGFRAME) + { + *xBorderWidth = GetSystemMetrics(SM_CXFIXEDFRAME); + *yBorderWidth = GetSystemMetrics(SM_CYFIXEDFRAME); + } + else + { + *xBorderWidth = 0; + *yBorderWidth = 0; + } +} + +#if(WINVER >= 0x500) +typedef struct +{ + int *x; + int *y; + const char *name; +} m_proc_t; + +static BOOL CALLBACK m_proc(HMONITOR mon, + HDC hdc, + LPRECT rect, + LPARAM data) +{ + m_proc_t *dp=(m_proc_t *)data; + MONITORINFOEX info; + BOOL res; + info.cbSize=sizeof(info); + res=GetMonitorInfo(mon,(LPMONITORINFO)&info); + if( res ) + { + if( strcmp(dp->name,info.szDevice)==0 ) + { + *(dp->x)=info.rcMonitor.left; + *(dp->y)=info.rcMonitor.top; + return FALSE; + } + } + return TRUE; +} + +/* + * this function returns the origin of the screen identified by + * fgDisplay.DisplayName, and 0 otherwise. + * This is used in fgOpenWindow to open the gamemode window on the screen + * identified by the -display command line argument. The function should + * not be called otherwise. + */ + +static void get_display_origin(int *xp,int *yp) +{ + *xp = 0; + *yp = 0; + + if( fgDisplay.DisplayName ) + { + m_proc_t st; + st.x=xp; + st.y=yp; + st.name=fgDisplay.DisplayName; + EnumDisplayMonitors(0,0,m_proc,(LPARAM)&st); + } +} +#else +#pragma message( "-display parameter only works if compiled with WINVER >= 0x0500") + +static void get_display_origin(int *xp,int *yp) +{ + *xp = 0; + *yp = 0; + + if( fgDisplay.DisplayName ) + { + fgWarning( "for working -display support FreeGLUT must be compiled with WINVER >= 0x0500"); + } +} +#endif + + + +/* + * 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 ) +{ + + WNDCLASS wc; + DWORD flags = 0; + DWORD exFlags = 0; + ATOM atom; + + /* Grab the window class we have registered on glutInit(): */ + atom = GetClassInfo( fgDisplay.Instance, _T("FREEGLUT"), &wc ); + FREEGLUT_INTERNAL_ERROR_EXIT ( atom, "Window Class Info Not Found", + "fgOpenWindow" ); + + /* Determine window style flags*/ + if( gameMode ) + { + FREEGLUT_INTERNAL_ERROR_EXIT ( window->Parent == NULL, + "Game mode being invoked on a subwindow", + "fgOpenWindow" ); + + /* + * Set the window creation flags appropriately to make the window + * entirely visible: + */ + flags = WS_POPUP | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_VISIBLE; + } + else + { + flags = WS_CLIPSIBLINGS | WS_CLIPCHILDREN; + + /* + * There's a small difference between creating the top, child and + * menu windows + */ + if ( window->IsMenu ) + { + flags |= WS_POPUP; + exFlags |= WS_EX_TOOLWINDOW; + } +#if defined(_WIN32_WCE) + /* no decorations for windows CE */ +#else + /* if this is not a subwindow (child), set its style based on the requested display mode */ + else if( window->Parent == NULL ) + if ( fgState.DisplayMode & GLUT_BORDERLESS ) + { + /* no window decorations needed */ + } + else if ( fgState.DisplayMode & GLUT_CAPTIONLESS ) + /* only window decoration is a border, no title bar or buttons */ + flags |= WS_DLGFRAME; + else + /* window decoration are a border, title bar and buttons. + * NB: we later query whether the window has a title bar or + * not by testing for the maximize button, as the test for + * WS_CAPTION can be true without the window having a title + * bar. This style WS_OVERLAPPEDWINDOW gives you a maximize + * button. */ + flags |= WS_OVERLAPPEDWINDOW; +#endif + else + /* subwindows always have no decoration, but are marked as a child window to the OS */ + flags |= WS_CHILD; + } + + /* determine window size and position */ + if( gameMode ) + { + /* if in gamemode, query the origin of specified by the -display + * command line parameter (if any) and offset the upper-left corner + * of the window so we create the window on that screen. + * The -display argument doesn't do anything if not trying to enter + * gamemode. + */ + int xoff=0, yoff=0; + get_display_origin(&xoff,&yoff); + x += xoff; + y += yoff; + } + if( !positionUse ) + { + x = CW_USEDEFAULT; + y = CW_USEDEFAULT; + } + if( !sizeUse ) + { + if( ! window->IsMenu ) + { + w = CW_USEDEFAULT; + h = CW_USEDEFAULT; + } + else /* fail safe - Windows can make a window of size (0, 0) */ + w = h = 300; /* default window size */ + } + /* store requested client area width and height */ + window->State.Width = w; + window->State.Height = h; + +#if !defined(_WIN32_WCE) /* no decorations for windows CE */ + if( sizeUse ) + { + RECT windowRect; + /* + * Update the window dimensions, taking the window decorations + * into account. FreeGLUT is to create the window with the + * topleft outside corner at (x,y) and with client area + * dimensions (w,h). + * note: don't need to do this when w=h=CW_USEDEFAULT, so in the + * if( sizeUse ) here is convenient. + */ + windowRect.left = x; + windowRect.top = y; + windowRect.right = x+w; + windowRect.bottom = y+h; + + fghComputeWindowRectFromClientArea_UseStyle(flags,&windowRect,TRUE); + + w = windowRect.right - windowRect.left; + h = windowRect.bottom- windowRect.top; + } +#endif /* !defined(_WIN32_WCE) */ + +#if defined(_WIN32_WCE) + { + wchar_t* wstr = fghWstrFromStr(title); + + window->Window.Handle = CreateWindow( + _T("FREEGLUT"), + wstr, + WS_VISIBLE | WS_POPUP, + 0,0, 240,320, + NULL, + NULL, + fgDisplay.Instance, + (LPVOID) window + ); + + free(wstr); + + SHFullScreen(window->Window.Handle, SHFS_HIDESTARTICON); + SHFullScreen(window->Window.Handle, SHFS_HIDESIPBUTTON); + SHFullScreen(window->Window.Handle, SHFS_HIDETASKBAR); + MoveWindow(window->Window.Handle, 0, 0, 240, 320, TRUE); + ShowWindow(window->Window.Handle, SW_SHOW); + UpdateWindow(window->Window.Handle); + } +#else + window->Window.Handle = CreateWindowEx( + exFlags, + _T("FREEGLUT"), + title, + flags, + x, y, w, h, + (HWND) window->Parent == NULL ? NULL : window->Parent->Window.Handle, + (HMENU) NULL, + fgDisplay.Instance, + (LPVOID) window + ); +#endif /* defined(_WIN32_WCE) */ + + if( !( window->Window.Handle ) ) + fgError( "Failed to create a window (%s)!", title ); + +#if !defined(_WIN32_WCE) + /* Need to set requested style again, apparently Windows doesn't listen when requesting windows without title bar or borders */ + SetWindowLong(window->Window.Handle, GWL_STYLE, flags); + SetWindowPos(window->Window.Handle, HWND_TOP, 0,0,0,0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED); +#endif /* defined(_WIN32_WCE) */ + + /* Make a menu window always on top - fix Feature Request 947118 */ + if( window->IsMenu || gameMode ) + SetWindowPos( + window->Window.Handle, + HWND_TOPMOST, + 0, 0, 0, 0, + SWP_NOMOVE | SWP_NOSIZE + ); + + /* Enable multitouch: additional flag TWF_FINETOUCH, TWF_WANTPALM */ + #ifdef WM_TOUCH + if (fghRegisterTouchWindow == (pRegisterTouchWindow)0xDEADBEEF) + fghRegisterTouchWindow = (pRegisterTouchWindow)GetProcAddress(GetModuleHandle("user32"),"RegisterTouchWindow"); + if (fghRegisterTouchWindow) + fghRegisterTouchWindow( window->Window.Handle, TWF_FINETOUCH | TWF_WANTPALM ); + #endif + +#if defined(_WIN32_WCE) + ShowWindow( window->Window.Handle, SW_SHOW ); +#else + ShowWindow( window->Window.Handle, + fgState.ForceIconic ? SW_SHOWMINIMIZED : SW_SHOW ); +#endif /* defined(_WIN32_WCE) */ + + UpdateWindow( window->Window.Handle ); + ShowCursor( TRUE ); /* XXX Old comments say "hide cursor"! */ + +} + + +/* + * Closes a window, destroying the frame and OpenGL context + */ +void fgPlatformCloseWindow( SFG_Window* window ) +{ + /* Make sure we don't close a window with current context active */ + if( fgStructure.CurrentWindow == window ) + wglMakeCurrent( NULL, NULL ); + + /* + * Step through the list of windows. If the rendering context + * is not being used by another window, then we delete it. + */ + { + int used = FALSE ; + SFG_Window *iter ; + + 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; + } + + if( ! used ) + wglDeleteContext( window->Window.Context ); + } + + DestroyWindow( window->Window.Handle ); +} + + +