/////////////////////////////////////////////////////////////////////////////
// Name: src/msw/glcanvas.cpp
-// Purpose: wxGLCanvas, for using OpenGL with wxWindows under MS Windows
+// Purpose: wxGLCanvas, for using OpenGL with wxWidgets under MS Windows
// Author: Julian Smart
// Modified by:
// Created: 04/01/98
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "glcanvas.h"
-#endif
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
#include "wx/wxprec.h"
#if defined(__BORLANDC__)
-#pragma hdrstop
+ #pragma hdrstop
#endif
#if wxUSE_GLCANVAS
#ifndef WX_PRECOMP
- #include "wx/frame.h"
- #include "wx/settings.h"
#include "wx/intl.h"
#include "wx/log.h"
#include "wx/app.h"
+ #include "wx/module.h"
#endif
#include "wx/msw/private.h"
-// DLL options compatibility check:
-#include "wx/build.h"
-WX_CHECK_BUILD_OPTIONS("wxGL")
-
#include "wx/glcanvas.h"
+// from src/msw/window.cpp
+LRESULT WXDLLEXPORT APIENTRY _EXPORT wxWndProc(HWND hWnd, UINT message,
+ WPARAM wParam, LPARAM lParam);
+
+#ifdef GL_EXT_vertex_array
+ #define WXUNUSED_WITHOUT_GL_EXT_vertex_array(name) name
+#else
+ #define WXUNUSED_WITHOUT_GL_EXT_vertex_array(name) WXUNUSED(name)
+#endif
+
+// ----------------------------------------------------------------------------
+// libraries
+// ----------------------------------------------------------------------------
+
/*
The following two compiler directives are specific to the Microsoft Visual
C++ family of compilers
these two libraries to either the Makefile or project file.
This is NOT a recommended technique, and certainly is unlikely to be used
- anywhere else in wxWindows given it is so specific to not only wxMSW, but
+ anywhere else in wxWidgets given it is so specific to not only wxMSW, but
also the VC compiler. However, in the case of opengl support, it's an
applicable technique as opengl is optional in setup.h This code (wrapped by
wxUSE_GLCANVAS), now allows opengl support to be added purely by modifying
# pragma comment( lib, "glu32" )
#endif
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
static const wxChar *wxGLCanvasClassName = wxT("wxGLCanvasClass");
static const wxChar *wxGLCanvasClassNameNoRedraw = wxT("wxGLCanvasClassNR");
-LRESULT WXDLLEXPORT APIENTRY _EXPORT wxWndProc(HWND hWnd, UINT message,
- WPARAM wParam, LPARAM lParam);
+// ============================================================================
+// implementation
+// ============================================================================
-/*
- * GLContext implementation
- */
+// ----------------------------------------------------------------------------
+// wxGLModule is responsible for unregistering wxGLCanvasClass Windows class
+// ----------------------------------------------------------------------------
-wxGLContext::wxGLContext(bool WXUNUSED(isRGB), wxGLCanvas *win, const wxPalette& WXUNUSED(palette))
+class wxGLModule : public wxModule
{
- m_window = win;
+public:
+ bool OnInit() { return true; }
+ void OnExit() { UnregisterClasses(); }
- m_hDC = win->GetHDC();
+ // register the GL classes if not done yet, return true if ok, false if
+ // registration failed
+ static bool RegisterClasses();
- m_glContext = wglCreateContext((HDC) m_hDC);
- wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGl context") );
+ // unregister the classes, done automatically on program termination
+ static void UnregisterClasses();
- wglMakeCurrent((HDC) m_hDC, m_glContext);
-}
+private:
+ // wxGLCanvas is only used from the main thread so this is MT-ok
+ static bool ms_registeredGLClasses;
+
+ DECLARE_DYNAMIC_CLASS(wxGLModule)
+};
+
+IMPLEMENT_DYNAMIC_CLASS(wxGLModule, wxModule)
+
+bool wxGLModule::ms_registeredGLClasses = false;
-wxGLContext::wxGLContext(
- bool WXUNUSED(isRGB), wxGLCanvas *win,
- const wxPalette& WXUNUSED(palette),
- const wxGLContext *other /* for sharing display lists */
- )
+/* static */
+bool wxGLModule::RegisterClasses()
{
- m_window = win;
+ if ( ms_registeredGLClasses )
+ return true;
- m_hDC = win->GetHDC();
+ // We have to register a special window class because we need the CS_OWNDC
+ // style for GLCanvas: some OpenGL drivers are buggy and don't work with
+ // windows without this style
+ WNDCLASS wndclass;
- m_glContext = wglCreateContext((HDC) m_hDC);
- wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGl context") );
+ // 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;
- if( other != 0 )
- wglShareLists( other->m_glContext, m_glContext );
+ // Register the GLCanvas class name
+ wndclass.hbrBackground = (HBRUSH)NULL;
+ wndclass.lpszClassName = wxGLCanvasClassName;
+ wndclass.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | CS_OWNDC;
- wglMakeCurrent((HDC) m_hDC, m_glContext);
-}
+ if ( !::RegisterClass(&wndclass) )
+ {
+ wxLogLastError(wxT("RegisterClass(wxGLCanvasClass)"));
+ return false;
+ }
-wxGLContext::~wxGLContext()
-{
- if (m_glContext)
- {
- wglMakeCurrent(NULL, NULL);
- wglDeleteContext(m_glContext);
- }
+ // Register the GLCanvas class name for windows which don't do full repaint
+ // on resize
+ wndclass.lpszClassName = wxGLCanvasClassNameNoRedraw;
+ wndclass.style &= ~(CS_HREDRAW | CS_VREDRAW);
+
+ if ( !::RegisterClass(&wndclass) )
+ {
+ wxLogLastError(wxT("RegisterClass(wxGLCanvasClassNameNoRedraw)"));
+
+ ::UnregisterClass(wxGLCanvasClassName, wxhInstance);
+
+ return false;
+ }
+
+ ms_registeredGLClasses = true;
+
+ return true;
}
-void wxGLContext::SwapBuffers()
+/* static */
+void wxGLModule::UnregisterClasses()
{
- if (m_glContext)
- {
- wglMakeCurrent((HDC) m_hDC, m_glContext);
- ::SwapBuffers((HDC) m_hDC); //blits the backbuffer into DC
- }
+ // we need to unregister the classes in case we're in a DLL which is
+ // unloaded and then loaded again because if we don't, the registration is
+ // going to fail in wxGLCanvas::Create() the next time we're loaded
+ if ( ms_registeredGLClasses )
+ {
+ ::UnregisterClass(wxGLCanvasClassName, wxhInstance);
+ ::UnregisterClass(wxGLCanvasClassNameNoRedraw, wxhInstance);
+
+ ms_registeredGLClasses = false;
+ }
}
-void wxGLContext::SetCurrent()
+// ----------------------------------------------------------------------------
+// wxGLContext
+// ----------------------------------------------------------------------------
+
+IMPLEMENT_CLASS(wxGLContext, wxObject)
+
+wxGLContext::wxGLContext(wxGLCanvas *win, const wxGLContext* other)
{
- if (m_glContext)
- {
- wglMakeCurrent((HDC) m_hDC, m_glContext);
- }
+ m_glContext = wglCreateContext(win->GetHDC());
+ wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGL context") );
- /*
- setupPixelFormat(hDC);
- setupPalette(hDC);
- */
+ if ( other )
+ {
+ if ( !wglShareLists(other->m_glContext, m_glContext) )
+ wxLogLastError(_T("wglShareLists"));
+ }
}
-void wxGLContext::SetColour(const wxChar *colour)
+wxGLContext::~wxGLContext()
{
- float r = 0.0;
- float g = 0.0;
- float b = 0.0;
- wxColour *col = wxTheColourDatabase->FindColour(colour);
- if (col)
- {
- r = (float)(col->Red()/256.0);
- g = (float)(col->Green()/256.0);
- b = (float)(col->Blue()/256.0);
- glColor3f( r, g, b);
- }
+ // note that it's ok to delete the context even if it's the current one
+ wglDeleteContext(m_glContext);
}
+bool wxGLContext::SetCurrent(const wxGLCanvas& win) const
+{
+ if ( !wglMakeCurrent(win.GetHDC(), m_glContext) )
+ {
+ wxLogLastError(_T("wglMakeCurrent"));
+ return false;
+ }
+ return true;
+}
-/*
- * wxGLCanvas implementation
- */
+// ============================================================================
+// wxGLCanvas
+// ============================================================================
IMPLEMENT_CLASS(wxGLCanvas, wxWindow)
BEGIN_EVENT_TABLE(wxGLCanvas, wxWindow)
- EVT_SIZE(wxGLCanvas::OnSize)
EVT_PALETTE_CHANGED(wxGLCanvas::OnPaletteChanged)
EVT_QUERY_NEW_PALETTE(wxGLCanvas::OnQueryNewPalette)
END_EVENT_TABLE()
-wxGLCanvas::wxGLCanvas(wxWindow *parent, wxWindowID id,
- const wxPoint& pos, const wxSize& size, long style, const wxString& name,
- int *attribList, const wxPalette& palette) : wxWindow()
-{
- m_glContext = (wxGLContext*) NULL;
-
- bool ret = Create(parent, id, pos, size, style, name);
-
- if ( ret )
- {
- SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
- SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
- }
-
- m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
-
- SetupPixelFormat(attribList);
- SetupPalette(palette);
-
- m_glContext = new wxGLContext(TRUE, this, palette);
-}
+// ----------------------------------------------------------------------------
+// wxGLCanvas construction
+// ----------------------------------------------------------------------------
-wxGLCanvas::wxGLCanvas( wxWindow *parent,
- const wxGLContext *shared, wxWindowID id,
- const wxPoint& pos, const wxSize& size, long style, const wxString& name,
- int *attribList, const wxPalette& palette )
- : wxWindow()
+void wxGLCanvas::Init()
{
- m_glContext = (wxGLContext*) NULL;
-
- bool ret = Create(parent, id, pos, size, style, name);
-
- if ( ret )
- {
- SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
- SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
- }
-
- m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
-
- SetupPixelFormat(attribList);
- SetupPalette(palette);
-
- m_glContext = new wxGLContext(TRUE, this, palette, shared );
+#if WXWIN_COMPATIBILITY_2_8
+ m_glContext = NULL;
+#endif
+ m_hDC = NULL;
}
-// 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 ):
- wxWindow()
+wxGLCanvas::wxGLCanvas(wxWindow *parent,
+ wxWindowID id,
+ const int *attribList,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxString& name,
+ const wxPalette& palette)
{
- m_glContext = (wxGLContext*) NULL;
-
- bool ret = Create(parent, id, pos, size, style, name);
-
- if ( ret )
- {
- SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
- SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
- }
-
- m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
+ Init();
- SetupPixelFormat(attribList);
- SetupPalette(palette);
-
- wxGLContext *sharedContext=0;
- if (shared) sharedContext=shared->GetContext();
- m_glContext = new wxGLContext(TRUE, this, palette, sharedContext );
+ (void)Create(parent, id, pos, size, style, name, attribList, palette);
}
wxGLCanvas::~wxGLCanvas()
{
- if (m_glContext)
- delete m_glContext;
-
- ::ReleaseDC((HWND) GetHWND(), (HDC) m_hDC);
+ ::ReleaseDC(GetHwnd(), m_hDC);
}
// Replaces wxWindow::Create functionality, since we need to use a different
const wxPoint& pos,
const wxSize& size,
long style,
- const wxString& name)
+ const wxString& name,
+ const int *attribList,
+ const wxPalette& palette)
{
- static bool s_registeredGLCanvasClass = FALSE;
+ wxCHECK_MSG( parent, false, wxT("can't create wxWindow without parent") );
- // We have to register a special window class because we need
- // the CS_OWNDC style for GLCanvas.
-
- /*
- From Angel Popov <jumpo@bitex.com>
-
- Here are two snips from a dicussion in the OpenGL Gamedev list that explains
- how this problem can be fixed:
-
- "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."
-
- "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."
- */
-
- if (!s_registeredGLCanvasClass)
- {
- WNDCLASS wndclass;
-
- // 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 = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | CS_OWNDC;
-
- if ( !::RegisterClass(&wndclass) )
+ if ( !wxGLModule::RegisterClasses() )
{
- wxLogLastError(wxT("RegisterClass(wxGLCanvasClass)"));
- return FALSE;
- }
+ wxLogError(_("Failed to register OpenGL window class."));
- // Register the GLCanvas class name for windows which don't do full repaint
- // on resize
- wndclass.lpszClassName = wxGLCanvasClassNameNoRedraw;
- wndclass.style &= ~(CS_HREDRAW | CS_VREDRAW);
+ return false;
+ }
- if ( !::RegisterClass(&wndclass) )
- {
- wxLogLastError(wxT("RegisterClass(wxGLCanvasClassNameNoRedraw)"));
+ if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
+ return false;
- ::UnregisterClass(wxGLCanvasClassName, wxhInstance);
+ parent->AddChild(this);
- return FALSE;
- }
+ /*
+ 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.
+ */
+ WXDWORD exStyle = 0;
+ DWORD msflags = WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
+ msflags |= MSWGetStyle(style, &exStyle);
- s_registeredGLCanvasClass = TRUE;
- }
+ if ( !MSWCreate(wxGLCanvasClassName, NULL, pos, size, msflags, exStyle) )
+ return false;
- wxCHECK_MSG( parent, FALSE, wxT("can't create wxWindow without parent") );
+ m_hDC = ::GetDC(GetHwnd());
+ if ( !m_hDC )
+ return false;
- if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
- return FALSE;
+ if ( !DoSetup(attribList) )
+ return false;
- parent->AddChild(this);
+#if wxUSE_PALETTE
+ if ( !SetupPalette(palette) )
+ return false;
+#else // !wxUSE_PALETTE
+ wxUnusedVar(palette);
+#endif // wxUSE_PALETTE/!wxUSE_PALETTE
- DWORD msflags = 0;
+ return true;
+}
- /*
- 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.
- */
+// ----------------------------------------------------------------------------
+// operations
+// ----------------------------------------------------------------------------
- WXDWORD exStyle = 0;
- msflags |= WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
- msflags |= MSWGetStyle(style, & exStyle) ;
+bool wxGLCanvas::SwapBuffers()
+{
+ if ( !::SwapBuffers(m_hDC) )
+ {
+ wxLogLastError(_T("SwapBuffers"));
+ return false;
+ }
- return MSWCreate(wxGLCanvasClassName, NULL, pos, size, msflags, exStyle);
+ return true;
}
-static void AdjustPFDForAttributes(PIXELFORMATDESCRIPTOR& pfd, int *attribList)
+// ----------------------------------------------------------------------------
+// pixel format stuff
+// ----------------------------------------------------------------------------
+
+static void
+AdjustPFDForAttributes(PIXELFORMATDESCRIPTOR& pfd, const int *attribList)
{
- if (attribList) {
+ if ( !attribList )
+ return;
+
+ // remove default attributes
pfd.dwFlags &= ~PFD_DOUBLEBUFFER;
pfd.iPixelType = PFD_TYPE_COLORINDEX;
- pfd.cColorBits = 0;
- int arg=0;
- while( (attribList[arg]!=0) )
+ for ( int arg = 0; attribList[arg]; )
{
- 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 = (BYTE)PFD_OVERLAY_PLANE;
- } else if (attribList[arg] < 0) {
- pfd.iLayerType = (BYTE)PFD_UNDERLAY_PLANE;
- } else {
- pfd.iLayerType = (BYTE)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;
- }
+ 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 = (BYTE)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;
+ }
}
- }
}
-void wxGLCanvas::SetupPixelFormat(int *attribList) // (HDC hDC)
+/* static */
+int
+wxGLCanvas::ChooseMatchingPixelFormat(HDC hdc,
+ const int *attribList,
+ PIXELFORMATDESCRIPTOR *ppfd)
{
- PIXELFORMATDESCRIPTOR pfd = {
- sizeof(PIXELFORMATDESCRIPTOR), /* size */
- 1, /* version */
+ // default neutral pixel format
+ 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 */
+ PFD_DOUBLEBUFFER, // use double-buffering by default
+ PFD_TYPE_RGBA, // default pixel type
+ 0, // preferred color depth (don't care)
+ 0, 0, 0, 0, 0, 0, // color bits and shift bits (ignored)
+ 0, 0, // alpha bits and shift (ignored)
+ 0, // accumulation total bits
+ 0, 0, 0, 0, // accumulator RGBA bits (not used)
+ 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
};
- AdjustPFDForAttributes(pfd, attribList);
+ if ( !ppfd )
+ ppfd = &pfd;
+ else
+ *ppfd = pfd;
- int pixelFormat = ChoosePixelFormat((HDC) m_hDC, &pfd);
- if (pixelFormat == 0) {
- wxLogLastError(_T("ChoosePixelFormat"));
- }
- else {
- if ( !::SetPixelFormat((HDC) m_hDC, pixelFormat, &pfd) ) {
- wxLogLastError(_T("SetPixelFormat"));
- }
- }
+ AdjustPFDForAttributes(*ppfd, attribList);
+
+ return ::ChoosePixelFormat(hdc, ppfd);
}
-void wxGLCanvas::SetupPalette(const wxPalette& palette)
+/* static */
+bool wxGLCanvasBase::IsDisplaySupported(const int *attribList)
+{
+ // We need a device context to test the pixel format, so get one
+ // for the root window.
+ return wxGLCanvas::ChooseMatchingPixelFormat(ScreenHDC(), attribList) > 0;
+}
+
+bool wxGLCanvas::DoSetup(const int *attribList)
{
- int pixelFormat = GetPixelFormat((HDC) m_hDC);
PIXELFORMATDESCRIPTOR pfd;
+ const int pixelFormat = ChooseMatchingPixelFormat(m_hDC, attribList, &pfd);
+ if ( !pixelFormat )
+ {
+ wxLogLastError(_T("ChoosePixelFormat"));
+ return false;
+ }
+
+ if ( !::SetPixelFormat(m_hDC, pixelFormat, &pfd) )
+ {
+ wxLogLastError(_T("SetPixelFormat"));
+ return false;
+ }
+
+ return true;
+}
- DescribePixelFormat((HDC) m_hDC, pixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
+// ----------------------------------------------------------------------------
+// palette stuff
+// ----------------------------------------------------------------------------
- if (pfd.dwFlags & PFD_NEED_PALETTE)
+#if wxUSE_PALETTE
+
+bool wxGLCanvas::SetupPalette(const wxPalette& palette)
+{
+ const int pixelFormat = ::GetPixelFormat(m_hDC);
+ if ( !pixelFormat )
{
+ wxLogLastError(_T("GetPixelFormat"));
+ return false;
}
- else
+
+ PIXELFORMATDESCRIPTOR pfd;
+ if ( !::DescribePixelFormat(m_hDC, pixelFormat, sizeof(pfd), &pfd) )
{
- return;
+ wxLogLastError(_T("DescribePixelFormat"));
+ return false;
}
+ if ( !(pfd.dwFlags & PFD_NEED_PALETTE) )
+ return true;
+
m_palette = palette;
if ( !m_palette.Ok() )
{
m_palette = CreateDefaultPalette();
+ if ( !m_palette.Ok() )
+ return false;
+ }
+
+ if ( !::SelectPalette(m_hDC, GetHpaletteOf(m_palette), FALSE) )
+ {
+ wxLogLastError(_T("SelectPalette"));
+ return false;
}
- if (m_palette.Ok())
+ if ( ::RealizePalette(m_hDC) == GDI_ERROR )
{
- SelectPalette((HDC) m_hDC, (HPALETTE) m_palette.GetHPALETTE(), FALSE);
- RealizePalette((HDC) m_hDC);
+ wxLogLastError(_T("RealizePalette"));
+ return false;
}
+
+ return true;
}
wxPalette wxGLCanvas::CreateDefaultPalette()
{
PIXELFORMATDESCRIPTOR pfd;
int paletteSize;
- int pixelFormat = GetPixelFormat((HDC) m_hDC);
+ int pixelFormat = GetPixelFormat(m_hDC);
- DescribePixelFormat((HDC) m_hDC, pixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
+ DescribePixelFormat(m_hDC, pixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
paletteSize = 1 << pfd.cColorBits;
LOGPALETTE* pPal =
(LOGPALETTE*) malloc(sizeof(LOGPALETTE) + paletteSize * sizeof(PALETTEENTRY));
pPal->palVersion = 0x300;
- pPal->palNumEntries = paletteSize;
+ pPal->palNumEntries = (WORD)paletteSize;
/* build a simple RGB color palette */
{
for (i=0; i<paletteSize; ++i) {
pPal->palPalEntry[i].peRed =
- (((i >> pfd.cRedShift) & redMask) * 255) / redMask;
+ (BYTE)((((i >> pfd.cRedShift) & redMask) * 255) / redMask);
pPal->palPalEntry[i].peGreen =
- (((i >> pfd.cGreenShift) & greenMask) * 255) / greenMask;
+ (BYTE)((((i >> pfd.cGreenShift) & greenMask) * 255) / greenMask);
pPal->palPalEntry[i].peBlue =
- (((i >> pfd.cBlueShift) & blueMask) * 255) / blueMask;
+ (BYTE)((((i >> pfd.cBlueShift) & blueMask) * 255) / blueMask);
pPal->palPalEntry[i].peFlags = 0;
}
}
return palette;
}
-void wxGLCanvas::SwapBuffers()
-{
- if (m_glContext)
- m_glContext->SwapBuffers();
-}
-
-void wxGLCanvas::OnSize(wxSizeEvent& WXUNUSED(event))
-{
-}
-
-void wxGLCanvas::SetCurrent()
-{
- if (m_glContext)
- {
- m_glContext->SetCurrent();
- }
-}
-
-void wxGLCanvas::SetColour(const wxChar *colour)
-{
- if (m_glContext)
- m_glContext->SetColour(colour);
-}
-
-// TODO: Have to have this called by parent frame (?)
-// 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());
+ ::SelectPalette(GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE);
+ ::RealizePalette(GetHDC());
Refresh();
- event.SetPaletteRealized(TRUE);
+ event.SetPaletteRealized(true);
}
else
- event.SetPaletteRealized(FALSE);
+ 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 */
GetPalette()->Ok() && (this != event.GetChangedWindow()) )
{
::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE());
- ::SelectPalette((HDC) GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE);
- ::RealizePalette((HDC) GetHDC());
+ ::SelectPalette(GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE);
+ ::RealizePalette(GetHDC());
Refresh();
}
}
-/* Give extensions proper function names. */
-
-/* EXT_vertex_array */
-void glArrayElementEXT(GLint WXUNUSED(i))
-{
-}
-
-void glColorPointerEXT(GLint WXUNUSED(size), GLenum WXUNUSED(type), GLsizei WXUNUSED(stride), GLsizei WXUNUSED(count), const GLvoid *WXUNUSED(pointer))
-{
-}
-
-void glDrawArraysEXT(GLenum mode, GLint first, GLsizei count)
-{
-#ifdef GL_EXT_vertex_array
- static PFNGLDRAWARRAYSEXTPROC proc = 0;
-
- if ( !proc )
- {
- proc = (PFNGLDRAWARRAYSEXTPROC) wglGetProcAddress("glDrawArraysEXT");
- }
-
- if ( proc )
- (* proc) (mode, first, count);
-#endif
-}
-
-void glEdgeFlagPointerEXT(GLsizei WXUNUSED(stride), GLsizei WXUNUSED(count), const GLboolean *WXUNUSED(pointer))
-{
-}
-
-void glGetPointervEXT(GLenum WXUNUSED(pname), GLvoid* *WXUNUSED(params))
-{
-}
-
-void glIndexPointerEXT(GLenum WXUNUSED(type), GLsizei WXUNUSED(stride), GLsizei WXUNUSED(count), const GLvoid *WXUNUSED(pointer))
-{
-}
-
-void glNormalPointerEXT(GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer)
-{
-#ifdef GL_EXT_vertex_array
- static PFNGLNORMALPOINTEREXTPROC proc = 0;
-
- if ( !proc )
- {
- proc = (PFNGLNORMALPOINTEREXTPROC) wglGetProcAddress("glNormalPointerEXT");
- }
-
- if ( proc )
- (* proc) (type, stride, count, pointer);
-#endif
-}
-
-void glTexCoordPointerEXT(GLint WXUNUSED(size), GLenum WXUNUSED(type), GLsizei WXUNUSED(stride), GLsizei WXUNUSED(count), const GLvoid *WXUNUSED(pointer))
-{
-}
-
-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");
- }
- if ( proc )
- (* proc) (size, type, stride, count, pointer);
-#endif
-}
-
-/* EXT_color_subtable */
-void glColorSubtableEXT(GLenum WXUNUSED(target), GLsizei WXUNUSED(start), GLsizei WXUNUSED(count), GLenum WXUNUSED(format), GLenum WXUNUSED(type), const GLvoid *WXUNUSED(table))
-{
-}
-
-/* EXT_color_table */
-void glColorTableEXT(GLenum WXUNUSED(target), GLenum WXUNUSED(internalformat), GLsizei WXUNUSED(width), GLenum WXUNUSED(format), GLenum WXUNUSED(type), const GLvoid *WXUNUSED(table))
-{
-}
-
-void glCopyColorTableEXT(GLenum WXUNUSED(target), GLenum WXUNUSED(internalformat), GLint WXUNUSED(x), GLint WXUNUSED(y), GLsizei WXUNUSED(width))
-{
-}
+#endif // wxUSE_PALETTE
-void glGetColorTableEXT(GLenum WXUNUSED(target), GLenum WXUNUSED(format), GLenum WXUNUSED(type), GLvoid *WXUNUSED(table))
-{
-}
+// ----------------------------------------------------------------------------
+// deprecated wxGLCanvas methods using implicit wxGLContext
+// ----------------------------------------------------------------------------
-void glGetColorTableParamaterfvEXT(GLenum WXUNUSED(target), GLenum WXUNUSED(pname), GLfloat *WXUNUSED(params))
-{
-}
+// deprecated constructors creating an implicit m_glContext
+#if WXWIN_COMPATIBILITY_2_8
-void glGetColorTavleParameterivEXT(GLenum WXUNUSED(target), GLenum WXUNUSED(pname), GLint *WXUNUSED(params))
+wxGLCanvas::wxGLCanvas(wxWindow *parent,
+ wxWindowID id,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxString& name,
+ const int *attribList,
+ const wxPalette& palette)
{
-}
+ Init();
-/* SGI_compiled_vertex_array */
-void glLockArraysSGI(GLint WXUNUSED(first), GLsizei WXUNUSED(count))
-{
+ if ( Create(parent, id, pos, size, style, name, attribList, palette) )
+ m_glContext = new wxGLContext(this);
}
-void glUnlockArraysSGI()
+wxGLCanvas::wxGLCanvas(wxWindow *parent,
+ const wxGLContext *shared,
+ wxWindowID id,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxString& name,
+ const int *attribList,
+ const wxPalette& palette)
{
-}
-
+ Init();
-/* SGI_cull_vertex */
-void glCullParameterdvSGI(GLenum WXUNUSED(pname), GLdouble* WXUNUSED(params))
-{
+ if ( Create(parent, id, pos, size, style, name, attribList, palette) )
+ m_glContext = new wxGLContext(this, shared);
}
-void glCullParameterfvSGI(GLenum WXUNUSED(pname), GLfloat* WXUNUSED(params))
+wxGLCanvas::wxGLCanvas(wxWindow *parent,
+ const wxGLCanvas *shared,
+ wxWindowID id,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxString& name,
+ const int *attribList,
+ const wxPalette& palette)
{
-}
+ Init();
-/* SGI_index_func */
-void glIndexFuncSGI(GLenum WXUNUSED(func), GLclampf WXUNUSED(ref))
-{
+ if ( Create(parent, id, pos, size, style, name, attribList, palette) )
+ m_glContext = new wxGLContext(this, shared ? shared->m_glContext : NULL);
}
-/* SGI_index_material */
-void glIndexMaterialSGI(GLenum WXUNUSED(face), GLenum WXUNUSED(mode))
-{
-}
-
-/* WIN_swap_hint */
-void glAddSwapHintRectWin(GLint WXUNUSED(x), GLint WXUNUSED(y), GLsizei WXUNUSED(width), GLsizei WXUNUSED(height))
-{
-}
+#endif // WXWIN_COMPATIBILITY_2_8
-//---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
// wxGLApp
-//---------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
-IMPLEMENT_CLASS(wxGLApp, wxApp)
-
-bool wxGLApp::InitGLVisual(int *attribList)
+bool wxGLApp::InitGLVisual(const int *attribList)
{
- 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 */
- };
-
- AdjustPFDForAttributes(pfd, attribList);
-
- // use DC for whole (root) screen, since no windows have yet been created
- pixelFormat = ChoosePixelFormat(ScreenHDC(), &pfd);
-
- if (pixelFormat == 0) {
- wxLogError(_("Failed to initialize OpenGL"));
- return FALSE;
- }
-
- return TRUE;
-}
+ if ( !wxGLCanvas::ChooseMatchingPixelFormat(ScreenHDC(), attribList) )
+ {
+ wxLogError(_("Failed to initialize OpenGL"));
+ return false;
+ }
-wxGLApp::~wxGLApp()
-{
+ return true;
}
-#endif
- // wxUSE_GLCANVAS
+#endif // wxUSE_GLCANVAS
projects / wxWidgets.git / blobdiff