+/*
+ * 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, <fayjf@sourceforge.net>
+ * 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.
+ */
+
+#define FREEGLUT_BUILDING_LIB
+#include <GL/freeglut.h>
+#include "../fg_internal.h"
+
+
+/* The following include file is available from SGI but is not standard:
+ * #include <GL/wglext.h>
+ * 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. */
+
+#ifdef WM_TOUCH
+typedef BOOL (WINAPI *pRegisterTouchWindow)(HWND,ULONG);
+static pRegisterTouchWindow fghRegisterTouchWindow = (pRegisterTouchWindow)0xDEADBEEF;
+#endif
+
+/*
+ * Helper functions for getting client area from the window rect
+ * and the window rect from the client area given the style of the window
+ * (or a valid window pointer from which the style can be queried).
+ */
+extern void fghGetBorderWidth(const DWORD windowStyle, int* xBorderWidth, int* yBorderWidth);
+
+
+/*
+ * 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; i<len; i++)
+ wstr[i] = str[i];
+ wstr[len] = 0;
+ return wstr;
+}
+#endif /* defined(_WIN32_WCE) */
+
+
+static void fghFillContextAttributes( int *attributes ) {
+ int where = 0, contextFlags, contextProfile;
+
+ if ( !fghIsLegacyContextVersionRequested() ) {
+ ATTRIB_VAL( WGL_CONTEXT_MAJOR_VERSION_ARB, fgState.MajorVersion );
+ ATTRIB_VAL( WGL_CONTEXT_MINOR_VERSION_ARB, fgState.MinorVersion );
+ }
+
+ contextFlags =
+ fghMapBit( fgState.ContextFlags, GLUT_DEBUG, WGL_CONTEXT_DEBUG_BIT_ARB ) |
+ fghMapBit( fgState.ContextFlags, GLUT_FORWARD_COMPATIBLE, WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB );
+ if ( contextFlags != 0 ) {
+ ATTRIB_VAL( WGL_CONTEXT_FLAGS_ARB, contextFlags );
+ }
+
+ contextProfile =
+ fghMapBit( fgState.ContextProfile, GLUT_CORE_PROFILE, WGL_CONTEXT_CORE_PROFILE_BIT_ARB ) |
+ fghMapBit( fgState.ContextProfile, GLUT_COMPATIBILITY_PROFILE, WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB );
+ if ( contextProfile != 0 ) {
+ ATTRIB_VAL( WGL_CONTEXT_PROFILE_MASK_ARB, contextProfile );
+ }
+
+ ATTRIB( 0 );
+}
+
+static int fghIsExtensionSupported( HDC hdc, const char *extension ) {
+ const char *pWglExtString;
+ PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetEntensionsStringARB =
+ (PFNWGLGETEXTENSIONSSTRINGARBPROC) wglGetProcAddress("wglGetExtensionsStringARB");
+ if ( wglGetEntensionsStringARB == NULL )
+ {
+ return FALSE;
+ }
+ pWglExtString = wglGetEntensionsStringARB( hdc );
+ return ( pWglExtString != NULL ) && ( strstr(pWglExtString, extension) != NULL );
+}
+
+void fgNewWGLCreateContext( SFG_Window* window )
+{
+ HGLRC context;
+ int attributes[9];
+ PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB;
+
+ /* If nothing fancy has been required, leave the context as it is */
+ if ( fghIsLegacyContextRequested() )
+ {
+ return;
+ }
+
+ wglMakeCurrent( window->Window.pContext.Device, window->Window.Context );
+
+ if ( !fghIsExtensionSupported( window->Window.pContext.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.pContext.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.pContext.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.pDisplay.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.pDisplay.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.pDisplay.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.pContext.Device );
+
+ if ( window )
+ {
+ window->Window.pContext.Device = GetDC( window->Window.Handle );
+ wglMakeCurrent(
+ window->Window.pContext.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.pDisplay.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.pDisplay.DisplayName )
+ {
+ m_proc_t st;
+ st.x=xp;
+ st.y=yp;
+ st.name=fgDisplay.pDisplay.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.pDisplay.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.pDisplay.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.pDisplay.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.pDisplay.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 );
+}
+
+
+
+/*
+ * This function makes the current window visible
+ */
+void fgPlatformGlutShowWindow( void )
+{
+ ShowWindow( fgStructure.CurrentWindow->Window.Handle, SW_SHOW );
+}
+
+/*
+ * This function hides the current window
+ */
+void fgPlatformGlutHideWindow( void )
+{
+ ShowWindow( fgStructure.CurrentWindow->Window.Handle, SW_HIDE );
+}
+
+/*
+ * Iconify the current window (top-level windows only)
+ */
+void fgPlatformGlutIconifyWindow( void )
+{
+ ShowWindow( fgStructure.CurrentWindow->Window.Handle, SW_MINIMIZE );
+}
+
+/*
+ * Set the current window's title
+ */
+void fgPlatformGlutSetWindowTitle( const char* title )
+{
+#ifdef _WIN32_WCE
+ {
+ wchar_t* wstr = fghWstrFromStr(title);
+ SetWindowText( fgStructure.CurrentWindow->Window.Handle, wstr );
+ free(wstr);
+ }
+#else
+ SetWindowText( fgStructure.CurrentWindow->Window.Handle, title );
+#endif
+}
+
+/*
+ * Set the current window's iconified title
+ */
+void fgPlatformGlutSetIconTitle( const char* title )
+{
+#ifdef _WIN32_WCE
+ {
+ wchar_t* wstr = fghWstrFromStr(title);
+ SetWindowText( fgStructure.CurrentWindow->Window.Handle, wstr );
+ free(wstr);
+ }
+#else
+ SetWindowText( fgStructure.CurrentWindow->Window.Handle, title );
+#endif
+}
+
+/*
+ * Change the current window's position
+ */
+void fgPlatformGlutPositionWindow( int x, int y )
+{
+ RECT winRect;
+
+ /* "GetWindowRect" returns the pixel coordinates of the outside of the window */
+ GetWindowRect( fgStructure.CurrentWindow->Window.Handle, &winRect );
+ MoveWindow(
+ fgStructure.CurrentWindow->Window.Handle,
+ x,
+ y,
+ winRect.right - winRect.left,
+ winRect.bottom - winRect.top,
+ TRUE
+ );
+}
+
+/*
+ * Lowers the current window (by Z order change)
+ */
+void fgPlatformGlutPushWindow( void )
+{
+ SetWindowPos(
+ fgStructure.CurrentWindow->Window.Handle,
+ HWND_BOTTOM,
+ 0, 0, 0, 0,
+ SWP_NOSIZE | SWP_NOMOVE
+ );
+}
+
+/*
+ * Raises the current window (by Z order change)
+ */
+void fgPlatformGlutPopWindow( void )
+{
+ SetWindowPos(
+ fgStructure.CurrentWindow->Window.Handle,
+ HWND_TOP,
+ 0, 0, 0, 0,
+ SWP_NOSIZE | SWP_NOMOVE
+ );
+}
+
+/*
+ * Resize the current window so that it fits the whole screen
+ */
+void fgPlatformGlutFullScreen( SFG_Window *win )
+{
+#if !defined(_WIN32_WCE) /* FIXME: what about WinCE */
+
+ if (glutGet(GLUT_FULL_SCREEN))
+ {
+ /* Leave full screen state before entering fullscreen again (resizing?) */
+ glutLeaveFullScreen();
+ }
+
+ {
+#if(WINVER >= 0x0500) /* Windows 2000 or later */
+ DWORD s;
+ RECT rect;
+ HMONITOR hMonitor;
+ MONITORINFO mi;
+
+ /* For fullscreen mode, first remove all window decoration
+ * and set style to popup so it will overlap the taskbar
+ * then force to maximize on the screen on which it has the most
+ * overlap.
+ */
+
+
+ /* store current window rect */
+ GetWindowRect( win->Window.Handle, &win->State.pWState.OldRect );
+
+ /* store current window style */
+ win->State.pWState.OldStyle = s = GetWindowLong(win->Window.Handle, GWL_STYLE);
+
+ /* remove decorations from style and add popup style*/
+ s &= ~WS_OVERLAPPEDWINDOW;
+ s |= WS_POPUP;
+ SetWindowLong(win->Window.Handle, GWL_STYLE, s);
+ SetWindowPos(win->Window.Handle, HWND_TOP, 0,0,0,0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED);
+
+ /* For fullscreen mode, find the monitor that is covered the most
+ * by the window and get its rect as the resize target.
+ */
+ hMonitor= MonitorFromRect(&win->State.pWState.OldRect, MONITOR_DEFAULTTONEAREST);
+ mi.cbSize = sizeof(mi);
+ GetMonitorInfo(hMonitor, &mi);
+ rect = mi.rcMonitor;
+#else /* if (WINVER >= 0x0500) */
+ RECT rect;
+
+ /* For fullscreen mode, force the top-left corner to 0,0
+ * and adjust the window rectangle so that the client area
+ * covers the whole screen.
+ */
+
+ rect.left = 0;
+ rect.top = 0;
+ rect.right = fgDisplay.ScreenWidth;
+ rect.bottom = fgDisplay.ScreenHeight;
+
+ AdjustWindowRect ( &rect, WS_OVERLAPPEDWINDOW | WS_CLIPSIBLINGS |
+ WS_CLIPCHILDREN, FALSE );
+#endif /* (WINVER >= 0x0500) */
+
+ /*
+ * then resize window
+ * SWP_NOACTIVATE Do not activate the window
+ * SWP_NOOWNERZORDER Do not change position in z-order
+ * SWP_NOSENDCHANGING Suppress WM_WINDOWPOSCHANGING message
+ * SWP_NOZORDER Retains the current Z order (ignore 2nd param)
+ */
+ SetWindowPos( fgStructure.CurrentWindow->Window.Handle,
+ HWND_TOP,
+ rect.left,
+ rect.top,
+ rect.right - rect.left,
+ rect.bottom - rect.top,
+ SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOSENDCHANGING |
+ SWP_NOZORDER
+ );
+
+ win->State.IsFullscreen = GL_TRUE;
+ }
+#endif
+}
+
+/*
+ * If we are fullscreen, resize the current window back to its original size
+ */
+void fgPlatformGlutLeaveFullScreen( SFG_Window *win )
+{
+#if !defined(_WIN32_WCE) /* FIXME: what about WinCE */
+ if (!glutGet(GLUT_FULL_SCREEN))
+ {
+ /* nothing to do */
+ return;
+ }
+
+ /* restore style of window before making it fullscreen */
+ SetWindowLong(win->Window.Handle, GWL_STYLE, win->State.pWState.OldStyle);
+ SetWindowPos(win->Window.Handle, HWND_TOP, 0,0,0,0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED);
+
+ /* Then resize */
+ SetWindowPos(win->Window.Handle,
+ HWND_TOP,
+ win->State.pWState.OldRect.left,
+ win->State.pWState.OldRect.top,
+ win->State.pWState.OldRect.right - win->State.pWState.OldRect.left,
+ win->State.pWState.OldRect.bottom - win->State.pWState.OldRect.top,
+ SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOSENDCHANGING |
+ SWP_NOZORDER
+ );
+
+ win->State.IsFullscreen = GL_FALSE;
+#endif
+}
+
+/*
+ * Toggle the window's full screen state.
+ */
+void fgPlatformGlutFullScreenToggle( SFG_Window *win )
+{
+ if (!win->State.IsFullscreen)
+ glutFullScreen();
+ else
+ glutLeaveFullScreen();
+}
+
+
+/* -- PLATFORM-SPECIFIC INTERFACE FUNCTION -------------------------------------------------- */
+
+int FGAPIENTRY __glutCreateWindowWithExit( const char *title, void (__cdecl *exit_function)(int) )
+{
+ __glutExitFunc = exit_function;
+ return glutCreateWindow( title );
+}
+
projects / freeglut / blobdiff