m_hDC = win->GetHDC();
m_glContext = wglCreateContext((HDC) m_hDC);
- wxCHECK_RET( m_glContext, "Couldn't create OpenGl context" );
+ wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGl context") );
wglMakeCurrent((HDC) m_hDC, m_glContext);
}
wxGLContext::wxGLContext(
bool isRGB, wxGLCanvas *win,
const wxPalette& palette,
- const wxGLContext *other /* for sharing display lists */
-)
+ const wxGLContext *other /* for sharing display lists */
+ )
{
- m_window = win;
+ m_window = win;
- m_hDC = win->GetHDC();
+ m_hDC = win->GetHDC();
- m_glContext = wglCreateContext((HDC) m_hDC);
- wxCHECK_RET( m_glContext, "Couldn't create OpenGl context" );
+ m_glContext = wglCreateContext((HDC) m_hDC);
+ wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGl context") );
- if( other != 0 )
- wglShareLists( other->m_glContext, m_glContext );
+ if( other != 0 )
+ wglShareLists( other->m_glContext, m_glContext );
- wglMakeCurrent((HDC) m_hDC, m_glContext);
+ wglMakeCurrent((HDC) m_hDC, m_glContext);
}
wxGLContext::~wxGLContext()
if (m_glContext)
{
wglMakeCurrent(NULL, NULL);
- wglDeleteContext(m_glContext);
+ wglDeleteContext(m_glContext);
}
}
wglMakeCurrent((HDC) m_hDC, m_glContext);
}
-/*
- setupPixelFormat(hDC);
- setupPalette(hDC);
-*/
+ /*
+ setupPixelFormat(hDC);
+ setupPalette(hDC);
+ */
}
void wxGLContext::SetColour(const char *colour)
wxGLCanvas::wxGLCanvas(wxWindow *parent, wxWindowID id,
const wxPoint& pos, const wxSize& size, long style, const wxString& name,
- int *attribList /* not used yet! */, const wxPalette& palette):
- wxScrolledWindow()
+ int *attribList, const wxPalette& palette) : wxScrolledWindow()
{
- m_glContext = (wxGLContext*) NULL;
+ m_glContext = (wxGLContext*) NULL;
- bool ret = Create(parent, id, pos, size, style, name);
+ bool ret = Create(parent, id, pos, size, style, name);
- if ( ret )
- {
- SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
- SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
- }
+ if ( ret )
+ {
+ SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
+ SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
+ }
- m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
+ m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
- SetupPixelFormat();
- SetupPalette(palette);
+ SetupPixelFormat(attribList);
+ SetupPalette(palette);
- m_glContext = new wxGLContext(TRUE, this, palette);
+ m_glContext = new wxGLContext(TRUE, this, palette);
}
wxGLCanvas::wxGLCanvas( wxWindow *parent,
int *attribList, const wxPalette& palette )
: wxScrolledWindow()
{
- m_glContext = (wxGLContext*) NULL;
+ m_glContext = (wxGLContext*) NULL;
- bool ret = Create(parent, id, pos, size, style, name);
+ bool ret = Create(parent, id, pos, size, style, name);
- if ( ret )
- {
- SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
- SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
- }
+ if ( ret )
+ {
+ SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
+ SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
+ }
- m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
+ m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
- SetupPixelFormat();
- SetupPalette(palette);
+ SetupPixelFormat(attribList);
+ SetupPalette(palette);
- m_glContext = new wxGLContext(TRUE, this, palette, shared );
+ m_glContext = new wxGLContext(TRUE, this, palette, shared );
}
-// Not very usefull for wxMSW, but this is to be wxGTK compliant
+// Not very useful for wxMSW, but this is to be wxGTK compliant
wxGLCanvas::wxGLCanvas( wxWindow *parent, const wxGLCanvas *shared, wxWindowID id,
const wxPoint& pos, const wxSize& size, long style, const wxString& name,
int *attribList, const wxPalette& palette ):
wxScrolledWindow()
{
- m_glContext = (wxGLContext*) NULL;
+ m_glContext = (wxGLContext*) NULL;
- bool ret = Create(parent, id, pos, size, style, name);
+ bool ret = Create(parent, id, pos, size, style, name);
- if ( ret )
- {
- SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
- SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
- }
+ if ( ret )
+ {
+ SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
+ SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
+ }
- m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
+ m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
- SetupPixelFormat();
- SetupPalette(palette);
+ SetupPixelFormat(attribList);
+ SetupPalette(palette);
- wxGLContext *sharedContext=0;
- if (shared) sharedContext=shared->GetContext();
- m_glContext = new wxGLContext(TRUE, this, palette, sharedContext );
+ wxGLContext *sharedContext=0;
+ if (shared) sharedContext=shared->GetContext();
+ m_glContext = new wxGLContext(TRUE, this, palette, sharedContext );
}
wxGLCanvas::~wxGLCanvas()
bool wxGLCanvas::Create(wxWindow *parent, wxWindowID id,
const wxPoint& pos, const wxSize& size, long style, const wxString& name)
{
- static bool registeredGLCanvasClass = FALSE;
+ /*
+ Suggestion from Kelly Brock <kbrock@8cs.com> (not yet implemented):
- // We have to register a special window class because we need
- // the CS_OWNDC style for GLCanvas.
+ OpenGL corruption fix is simple assuming it doesn't screw anything else
+ up. Add the following line to the top of the create function:
+
+ wxSize parentSize = GetClientSize();
-/*
- From Angel Popov <jumpo@bitex.com>
+ All locations within the function that use 'size' are changed to
+ 'parentSize'.
+ The above corrects the initial display corruption with the GeForce and
+ TNT2, not sure about other NVidia cards yet.
+ */
- Here are two snips from a dicussion in the OpenGL Gamedev list that explains
- how this problem can be fixed:
+ static bool registeredGLCanvasClass = FALSE;
- "There are 5 common DCs available in Win95. These are aquired when you call
- GetDC or GetDCEx from a window that does _not_ have the OWNDC flag.
- OWNDC flagged windows do not get their DC from the common DC pool, the issue
- is they require 800 bytes each from the limited 64Kb local heap for GDI."
+ // We have to register a special window class because we need
+ // the CS_OWNDC style for GLCanvas.
- "The deal is, if you hold onto one of the 5 shared DC's too long (as GL apps
- do), Win95 will actually "steal" it from you. MakeCurrent fails,
- apparently, because Windows re-assigns the HDC to a different window. The
- only way to prevent this, the only reliable means, is to set CS_OWNDC."
-*/
+ /*
+ From Angel Popov <jumpo@bitex.com>
- if (!registeredGLCanvasClass)
- {
- WNDCLASS wndclass;
-
- static const long styleNormal = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | CS_OWNDC;
-
- // the fields which are common to all classes
- wndclass.lpfnWndProc = (WNDPROC)wxWndProc;
- wndclass.cbClsExtra = 0;
- wndclass.cbWndExtra = sizeof( DWORD ); // VZ: what is this DWORD used for?
- wndclass.hInstance = wxhInstance;
- wndclass.hIcon = (HICON) NULL;
- wndclass.hCursor = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW);
- wndclass.lpszMenuName = NULL;
-
- // Register the GLCanvas class name
- wndclass.hbrBackground = (HBRUSH)NULL;
- wndclass.lpszClassName = wxGLCanvasClassName;
- wndclass.style = styleNormal;
-
- if ( !RegisterClass(&wndclass) )
- {
- wxLogLastError("RegisterClass(wxGLCanvasClass)");
-
- return FALSE;
- }
- registeredGLCanvasClass = TRUE;
- }
+ Here are two snips from a dicussion in the OpenGL Gamedev list that explains
+ how this problem can be fixed:
- wxCHECK_MSG( parent, FALSE, wxT("can't create wxWindow without parent") );
+ "There are 5 common DCs available in Win95. These are aquired when you call
+ GetDC or GetDCEx from a window that does _not_ have the OWNDC flag.
+ OWNDC flagged windows do not get their DC from the common DC pool, the issue
+ is they require 800 bytes each from the limited 64Kb local heap for GDI."
- if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
- return FALSE;
+ "The deal is, if you hold onto one of the 5 shared DC's too long (as GL apps
+ do), Win95 will actually "steal" it from you. MakeCurrent fails,
+ apparently, because Windows re-assigns the HDC to a different window. The
+ only way to prevent this, the only reliable means, is to set CS_OWNDC."
+ */
- parent->AddChild(this);
+ if (!registeredGLCanvasClass)
+ {
+ WNDCLASS wndclass;
- DWORD msflags = 0;
- if ( style & wxBORDER )
- msflags |= WS_BORDER;
- if ( style & wxTHICK_FRAME )
- msflags |= WS_THICKFRAME;
+ static const long styleNormal = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | CS_OWNDC;
- msflags |= WS_CHILD | WS_VISIBLE;
- if ( style & wxCLIP_CHILDREN )
- msflags |= WS_CLIPCHILDREN;
+ // the fields which are common to all classes
+ wndclass.lpfnWndProc = (WNDPROC)wxWndProc;
+ wndclass.cbClsExtra = 0;
+ wndclass.cbWndExtra = sizeof( DWORD ); // VZ: what is this DWORD used for?
+ wndclass.hInstance = wxhInstance;
+ wndclass.hIcon = (HICON) NULL;
+ wndclass.hCursor = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW);
+ wndclass.lpszMenuName = NULL;
- bool want3D;
- WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
+ // Register the GLCanvas class name
+ wndclass.hbrBackground = (HBRUSH)NULL;
+ wndclass.lpszClassName = wxGLCanvasClassName;
+ wndclass.style = styleNormal;
- // Even with extended styles, need to combine with WS_BORDER
- // for them to look right.
- if ( want3D || (m_windowStyle & wxSIMPLE_BORDER) || (m_windowStyle & wxRAISED_BORDER ) ||
- (m_windowStyle & wxSUNKEN_BORDER) || (m_windowStyle & wxDOUBLE_BORDER))
+ if ( !RegisterClass(&wndclass) )
{
- msflags |= WS_BORDER;
+ wxLogLastError(wxT("RegisterClass(wxGLCanvasClass)"));
+ return FALSE;
}
- // calculate the value to return from WM_GETDLGCODE handler
- if ( GetWindowStyleFlag() & wxWANTS_CHARS )
- {
- // want everything: i.e. all keys and WM_CHAR message
- m_lDlgCode = DLGC_WANTARROWS | DLGC_WANTCHARS |
- DLGC_WANTTAB | DLGC_WANTMESSAGE;
- }
+ registeredGLCanvasClass = TRUE;
+ }
- MSWCreate(m_windowId, parent, wxGLCanvasClassName, this, NULL,
- pos.x, pos.y,
- WidthDefault(size.x), HeightDefault(size.y),
- msflags, NULL, exStyle);
-
- return TRUE;
-
-}
-
-void wxGLCanvas::SetupPixelFormat() // (HDC hDC)
-{
- PIXELFORMATDESCRIPTOR pfd = {
- sizeof(PIXELFORMATDESCRIPTOR), /* size */
- 1, /* version */
- PFD_SUPPORT_OPENGL |
- PFD_DRAW_TO_WINDOW |
- PFD_DOUBLEBUFFER, /* support double-buffering */
- PFD_TYPE_RGBA, /* color type */
- 16, /* prefered color depth */
- 0, 0, 0, 0, 0, 0, /* color bits (ignored) */
- 0, /* no alpha buffer */
- 0, /* alpha bits (ignored) */
- 0, /* no accumulation buffer */
- 0, 0, 0, 0, /* accum bits (ignored) */
- 16, /* depth buffer */
- 0, /* no stencil buffer */
- 0, /* no auxiliary buffers */
- PFD_MAIN_PLANE, /* main layer */
- 0, /* reserved */
- 0, 0, 0, /* no layer, visible, damage masks */
- };
- int pixelFormat;
-
- pixelFormat = ChoosePixelFormat((HDC) m_hDC, &pfd);
- if (pixelFormat == 0) {
- MessageBox(WindowFromDC((HDC) m_hDC), "ChoosePixelFormat failed.", "Error",
- MB_ICONERROR | MB_OK);
- exit(1);
- }
+ wxCHECK_MSG( parent, FALSE, wxT("can't create wxWindow without parent") );
+
+ if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
+ return FALSE;
+
+ parent->AddChild(this);
+
+ DWORD msflags = 0;
+ if ( style & wxBORDER )
+ msflags |= WS_BORDER;
+ if ( style & wxTHICK_FRAME )
+ msflags |= WS_THICKFRAME;
+
+ /*
+ A general rule with OpenGL and Win32 is that any window that will have a
+ HGLRC built for it must have two flags: WS_CLIPCHILDREN & WS_CLIPSIBLINGS.
+ You can find references about this within the knowledge base and most OpenGL
+ books that contain the wgl function descriptions.
+ */
+
+ msflags |= WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS;
+ // if ( style & wxCLIP_CHILDREN )
+ // msflags |= WS_CLIPCHILDREN;
+ msflags |= WS_CLIPCHILDREN;
- if (SetPixelFormat((HDC) m_hDC, pixelFormat, &pfd) != TRUE) {
- MessageBox(WindowFromDC((HDC) m_hDC), "SetPixelFormat failed.", "Error",
- MB_ICONERROR | MB_OK);
- exit(1);
+ bool want3D;
+ WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
+
+ // Even with extended styles, need to combine with WS_BORDER
+ // for them to look right.
+ if ( want3D || (m_windowStyle & wxSIMPLE_BORDER) || (m_windowStyle & wxRAISED_BORDER ) ||
+ (m_windowStyle & wxSUNKEN_BORDER) || (m_windowStyle & wxDOUBLE_BORDER))
+ {
+ msflags |= WS_BORDER;
+ }
+
+ // calculate the value to return from WM_GETDLGCODE handler
+ if ( GetWindowStyleFlag() & wxWANTS_CHARS )
+ {
+ // want everything: i.e. all keys and WM_CHAR message
+ m_lDlgCode = DLGC_WANTARROWS | DLGC_WANTCHARS |
+ DLGC_WANTTAB | DLGC_WANTMESSAGE;
+ }
+
+ MSWCreate(m_windowId, parent, wxGLCanvasClassName, this, NULL,
+ pos.x, pos.y,
+ WidthDefault(size.x), HeightDefault(size.y),
+ msflags, NULL, exStyle);
+
+ return TRUE;
+}
+
+void wxGLCanvas::SetupPixelFormat(int *attribList) // (HDC hDC)
+{
+ int pixelFormat;
+ PIXELFORMATDESCRIPTOR pfd = {
+ sizeof(PIXELFORMATDESCRIPTOR), /* size */
+ 1, /* version */
+ PFD_SUPPORT_OPENGL |
+ PFD_DRAW_TO_WINDOW |
+ PFD_DOUBLEBUFFER, /* support double-buffering */
+ PFD_TYPE_RGBA, /* color type */
+ 16, /* prefered color depth */
+ 0, 0, 0, 0, 0, 0, /* color bits (ignored) */
+ 0, /* no alpha buffer */
+ 0, /* alpha bits (ignored) */
+ 0, /* no accumulation buffer */
+ 0, 0, 0, 0, /* accum bits (ignored) */
+ 16, /* depth buffer */
+ 0, /* no stencil buffer */
+ 0, /* no auxiliary buffers */
+ PFD_MAIN_PLANE, /* main layer */
+ 0, /* reserved */
+ 0, 0, 0, /* no layer, visible, damage masks */
+ };
+
+ if (attribList) {
+ pfd.dwFlags &= ~PFD_DOUBLEBUFFER;
+ pfd.iPixelType = PFD_TYPE_COLORINDEX;
+ pfd.cColorBits = 0;
+ int arg=0;
+
+ while( (attribList[arg]!=0) )
+ {
+ switch( attribList[arg++] )
+ {
+ case WX_GL_RGBA:
+ pfd.iPixelType = PFD_TYPE_RGBA;
+ break;
+ case WX_GL_BUFFER_SIZE:
+ pfd.cColorBits = attribList[arg++];
+ break;
+ case WX_GL_LEVEL:
+ // this member looks like it may be obsolete
+ if (attribList[arg] > 0) {
+ pfd.iLayerType = PFD_OVERLAY_PLANE;
+ } else if (attribList[arg] < 0) {
+ pfd.iLayerType = PFD_UNDERLAY_PLANE;
+ } else {
+ pfd.iLayerType = PFD_MAIN_PLANE;
+ }
+ arg++;
+ break;
+ case WX_GL_DOUBLEBUFFER:
+ pfd.dwFlags |= PFD_DOUBLEBUFFER;
+ break;
+ case WX_GL_STEREO:
+ pfd.dwFlags |= PFD_STEREO;
+ break;
+ case WX_GL_AUX_BUFFERS:
+ pfd.cAuxBuffers = attribList[arg++];
+ break;
+ case WX_GL_MIN_RED:
+ pfd.cColorBits += (pfd.cRedBits = attribList[arg++]);
+ break;
+ case WX_GL_MIN_GREEN:
+ pfd.cColorBits += (pfd.cGreenBits = attribList[arg++]);
+ break;
+ case WX_GL_MIN_BLUE:
+ pfd.cColorBits += (pfd.cBlueBits = attribList[arg++]);
+ break;
+ case WX_GL_MIN_ALPHA:
+ // doesn't count in cColorBits
+ pfd.cAlphaBits = attribList[arg++];
+ break;
+ case WX_GL_DEPTH_SIZE:
+ pfd.cDepthBits = attribList[arg++];
+ break;
+ case WX_GL_STENCIL_SIZE:
+ pfd.cStencilBits = attribList[arg++];
+ break;
+ case WX_GL_MIN_ACCUM_RED:
+ pfd.cAccumBits += (pfd.cAccumRedBits = attribList[arg++]);
+ break;
+ case WX_GL_MIN_ACCUM_GREEN:
+ pfd.cAccumBits += (pfd.cAccumGreenBits = attribList[arg++]);
+ break;
+ case WX_GL_MIN_ACCUM_BLUE:
+ pfd.cAccumBits += (pfd.cAccumBlueBits = attribList[arg++]);
+ break;
+ case WX_GL_MIN_ACCUM_ALPHA:
+ pfd.cAccumBits += (pfd.cAccumAlphaBits = attribList[arg++]);
+ break;
+ default:
+ break;
+ }
}
+ }
+ pixelFormat = ChoosePixelFormat((HDC) m_hDC, &pfd);
+ if (pixelFormat == 0) {
+ MessageBox(WindowFromDC((HDC) m_hDC), wxT("ChoosePixelFormat failed."), wxT("Error"),
+ MB_ICONERROR | MB_OK);
+ exit(1);
+ }
+
+ if (SetPixelFormat((HDC) m_hDC, pixelFormat, &pfd) != TRUE) {
+ MessageBox(WindowFromDC((HDC) m_hDC), wxT("SetPixelFormat failed."), wxT("Error"),
+ MB_ICONERROR | MB_OK);
+ exit(1);
+ }
}
void wxGLCanvas::SetupPalette(const wxPalette& palette)
DescribePixelFormat((HDC) m_hDC, pixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
- paletteSize = 1 << pfd.cColorBits;
+ paletteSize = 1 << pfd.cColorBits;
LOGPALETTE* pPal =
(LOGPALETTE*) malloc(sizeof(LOGPALETTE) + paletteSize * sizeof(PALETTEENTRY));
// So we need wxFrame to call OnQueryNewPalette for all children...
void wxGLCanvas::OnQueryNewPalette(wxQueryNewPaletteEvent& event)
{
- /* realize palette if this is the current window */
- if ( GetPalette()->Ok() ) {
- ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE());
- ::SelectPalette((HDC) GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE);
- ::RealizePalette((HDC) GetHDC());
- Refresh();
- event.SetPaletteRealized(TRUE);
- }
- else
- event.SetPaletteRealized(FALSE);
+ /* realize palette if this is the current window */
+ if ( GetPalette()->Ok() ) {
+ ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE());
+ ::SelectPalette((HDC) GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE);
+ ::RealizePalette((HDC) GetHDC());
+ Refresh();
+ event.SetPaletteRealized(TRUE);
+ }
+ else
+ event.SetPaletteRealized(FALSE);
}
// I think this doesn't have to be propagated to child windows.
void wxGLCanvas::OnPaletteChanged(wxPaletteChangedEvent& event)
{
- /* realize palette if this is *not* the current window */
- if ( GetPalette() &&
+ /* realize palette if this is *not* the current window */
+ if ( GetPalette() &&
GetPalette()->Ok() && (this != event.GetChangedWindow()) )
- {
- ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE());
- ::SelectPalette((HDC) GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE);
- ::RealizePalette((HDC) GetHDC());
- Refresh();
- }
+ {
+ ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE());
+ ::SelectPalette((HDC) GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE);
+ ::RealizePalette((HDC) GetHDC());
+ Refresh();
+ }
}
/* Give extensions proper function names. */
void glNormalPointerEXT(GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer)
{
#ifdef GL_EXT_vertex_array
- static PFNGLNORMALPOINTEREXTPROC proc = 0;
+ static PFNGLNORMALPOINTEREXTPROC proc = 0;
- if ( !proc )
- {
- proc = (PFNGLNORMALPOINTEREXTPROC) wglGetProcAddress("glNormalPointerEXT");
- }
+ if ( !proc )
+ {
+ proc = (PFNGLNORMALPOINTEREXTPROC) wglGetProcAddress("glNormalPointerEXT");
+ }
- if ( proc )
- (* proc) (type, stride, count, pointer);
+ if ( proc )
+ (* proc) (type, stride, count, pointer);
#endif
}
void glVertexPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer)
{
#ifdef GL_EXT_vertex_array
- static PFNGLVERTEXPOINTEREXTPROC proc = 0;
-
- if ( !proc )
- {
- proc = (PFNGLVERTEXPOINTEREXTPROC) wglGetProcAddress("glVertexPointerEXT");
- }
+ static PFNGLVERTEXPOINTEREXTPROC proc = 0;
- if ( proc )
- (* proc) (size, type, stride, count, pointer);
+ if ( !proc )
+ {
+ proc = (PFNGLVERTEXPOINTEREXTPROC) wglGetProcAddress("glVertexPointerEXT");
+ }
+ if ( proc )
+ (* proc) (size, type, stride, count, pointer);
#endif
}
projects / wxWidgets.git / blobdiff