Splitting some Windows-specific "freeglut_window.c" functions into their own file

git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@1002 7f0cb862-5218-0410-a997-914c9d46530a
This commit is contained in:
fayjf 2012-01-23 05:24:34 +00:00
parent 00b83f5488
commit 4c2d8597d3
2 changed files with 905 additions and 814 deletions

View File

@ -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 <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
#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; 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.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,
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:
* Closes a window, destroying the frame and OpenGL context
*/
flags = WS_POPUP | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_VISIBLE;
}
else
void fgPlatformCloseWindow( SFG_Window* window )
{
flags = WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
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 */
}
#endif /* TARGET_HOST_POSIX_X11 */
/*
* There's a small difference between creating the top, child and
* menu windows
* Sets the OpenGL context and the fgStructure "Current Window" pointer to
* the window structure passed in.
*/
if ( window->IsMenu )
void fgSetWindow ( SFG_Window *window )
{
flags |= WS_POPUP;
exFlags |= WS_EX_TOOLWINDOW;
fgPlatformSetWindow ( window );
fgStructure.CurrentWindow = window;
}
#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 )
#if TARGET_HOST_POSIX_X11
static Bool fghWindowIsVisible( Display *display, XEvent *event, XPointer arg)
{
/* no window decorations needed */
Window window = (Window)arg;
return (event->type == MapNotify) && (event->xmap.window == window);
}
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.
* Opens a window. Requires a SFG_Window object created and attached
* to the freeglut structure. OpenGL context is created here.
*/
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)
void fgOpenWindow( SFG_Window* window, const char* title,
GLboolean positionUse, int x, int y,
GLboolean sizeUse, int w, int h,
GLboolean gameMode, GLboolean isSubWindow )
{
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"! */
#endif
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 );
}

View File

@ -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, <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.
*/
#include <GL/freeglut.h>
#include "freeglut_internal_mswin.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. */
/* 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; 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.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 );
}