X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2b5f62a0b2db198609b45dec622a018dae37008e..b3514fd6175a8d8a5ec37d49b161c6f4981d6d71:/src/msw/glcanvas.cpp diff --git a/src/msw/glcanvas.cpp b/src/msw/glcanvas.cpp index 44ac48b0b9..ce18ac742a 100644 --- a/src/msw/glcanvas.cpp +++ b/src/msw/glcanvas.cpp @@ -1,6 +1,6 @@ ///////////////////////////////////////////////////////////////////////////// // 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 @@ -9,208 +9,247 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#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" #include "wx/glcanvas.h" -static const wxChar *wxGLCanvasClassName = wxT("wxGLCanvasClass"); -static const wxChar *wxGLCanvasClassNameNoRedraw = wxT("wxGLCanvasClassNR"); - +// from src/msw/window.cpp LRESULT WXDLLEXPORT APIENTRY _EXPORT wxWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam); -/* - * GLContext implementation - */ +#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 -wxGLContext::wxGLContext(bool isRGB, wxGLCanvas *win, const wxPalette& palette) -{ - m_window = win; +// ---------------------------------------------------------------------------- +// libraries +// ---------------------------------------------------------------------------- - m_hDC = win->GetHDC(); +/* + The following two compiler directives are specific to the Microsoft Visual + C++ family of compilers + + Fundementally what they do is instruct the linker to use these two libraries + for the resolution of symbols. In essence, this is the equivalent of adding + 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 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 + setup.h rather than by having to modify either the project or DSP fle. + + See MSDN for further information on the exact usage of these commands. +*/ +#ifdef _MSC_VER +# pragma comment( lib, "opengl32" ) +# pragma comment( lib, "glu32" ) +#endif - m_glContext = wglCreateContext((HDC) m_hDC); - wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGl context") ); +// ---------------------------------------------------------------------------- +// constants +// ---------------------------------------------------------------------------- - wglMakeCurrent((HDC) m_hDC, m_glContext); -} +static const wxChar *wxGLCanvasClassName = wxT("wxGLCanvasClass"); +static const wxChar *wxGLCanvasClassNameNoRedraw = wxT("wxGLCanvasClassNR"); -wxGLContext::wxGLContext( - bool isRGB, wxGLCanvas *win, - const wxPalette& palette, - const wxGLContext *other /* for sharing display lists */ - ) -{ - m_window = win; +// ============================================================================ +// implementation +// ============================================================================ - m_hDC = win->GetHDC(); +// ---------------------------------------------------------------------------- +// wxGLModule is responsible for unregistering wxGLCanvasClass Windows class +// ---------------------------------------------------------------------------- - m_glContext = wglCreateContext((HDC) m_hDC); - wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGl context") ); +class wxGLModule : public wxModule +{ +public: + bool OnInit() { return true; } + void OnExit() { UnregisterClasses(); } - if( other != 0 ) - wglShareLists( other->m_glContext, m_glContext ); + // register the GL classes if not done yet, return true if ok, false if + // registration failed + static bool RegisterClasses(); - wglMakeCurrent((HDC) m_hDC, m_glContext); -} + // unregister the classes, done automatically on program termination + static void UnregisterClasses(); -wxGLContext::~wxGLContext() -{ - if (m_glContext) - { - wglMakeCurrent(NULL, NULL); - wglDeleteContext(m_glContext); - } -} +private: + // wxGLCanvas is only used from the main thread so this is MT-ok + static bool ms_registeredGLClasses; -void wxGLContext::SwapBuffers() -{ - if (m_glContext) - { - wglMakeCurrent((HDC) m_hDC, m_glContext); - ::SwapBuffers((HDC) m_hDC); //blits the backbuffer into DC - } -} + DECLARE_DYNAMIC_CLASS(wxGLModule) +}; -void wxGLContext::SetCurrent() -{ - if (m_glContext) - { - wglMakeCurrent((HDC) m_hDC, m_glContext); - } +IMPLEMENT_DYNAMIC_CLASS(wxGLModule, wxModule) - /* - setupPixelFormat(hDC); - setupPalette(hDC); - */ -} +bool wxGLModule::ms_registeredGLClasses = false; -void wxGLContext::SetColour(const wxChar *colour) +/* static */ +bool wxGLModule::RegisterClasses() { - 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); - } -} + if ( ms_registeredGLClasses ) + return true; + // 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; -/* - * wxGLCanvas implementation - */ + // 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; -IMPLEMENT_CLASS(wxGLCanvas, wxWindow) + // Register the GLCanvas class name + wndclass.hbrBackground = (HBRUSH)NULL; + wndclass.lpszClassName = wxGLCanvasClassName; + wndclass.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | CS_OWNDC; -BEGIN_EVENT_TABLE(wxGLCanvas, wxWindow) - EVT_SIZE(wxGLCanvas::OnSize) - EVT_PALETTE_CHANGED(wxGLCanvas::OnPaletteChanged) - EVT_QUERY_NEW_PALETTE(wxGLCanvas::OnQueryNewPalette) -END_EVENT_TABLE() + if ( !::RegisterClass(&wndclass) ) + { + wxLogLastError(wxT("RegisterClass(wxGLCanvasClass)")); + return false; + } -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; + // Register the GLCanvas class name for windows which don't do full repaint + // on resize + wndclass.lpszClassName = wxGLCanvasClassNameNoRedraw; + wndclass.style &= ~(CS_HREDRAW | CS_VREDRAW); - bool ret = Create(parent, id, pos, size, style, name); + if ( !::RegisterClass(&wndclass) ) + { + wxLogLastError(wxT("RegisterClass(wxGLCanvasClassNameNoRedraw)")); - if ( ret ) - { - SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)); - SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); - } + ::UnregisterClass(wxGLCanvasClassName, wxhInstance); - m_hDC = (WXHDC) ::GetDC((HWND) GetHWND()); + return false; + } - SetupPixelFormat(attribList); - SetupPalette(palette); + ms_registeredGLClasses = true; - m_glContext = new wxGLContext(TRUE, this, palette); + return true; } -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() +/* static */ +void wxGLModule::UnregisterClasses() { - m_glContext = (wxGLContext*) NULL; + // 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); - bool ret = Create(parent, id, pos, size, style, name); + ms_registeredGLClasses = false; + } +} - if ( ret ) - { - SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)); - SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); - } +// ---------------------------------------------------------------------------- +// wxGLContext +// ---------------------------------------------------------------------------- - m_hDC = (WXHDC) ::GetDC((HWND) GetHWND()); +IMPLEMENT_CLASS(wxGLContext, wxObject) - SetupPixelFormat(attribList); - SetupPalette(palette); +wxGLContext::wxGLContext(wxGLCanvas *win, const wxGLContext* other) +{ + m_glContext = wglCreateContext(win->GetHDC()); + wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGL context") ); - m_glContext = new wxGLContext(TRUE, this, palette, shared ); + if ( other ) + { + if ( !wglShareLists(other->m_glContext, m_glContext) ) + wxLogLastError(_T("wglShareLists")); + } } -// Not very useful for wxMSW, but this is to be wxGTK compliant +wxGLContext::~wxGLContext() +{ + // note that it's ok to delete the context even if it's the current one + wglDeleteContext(m_glContext); +} -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() +bool wxGLContext::SetCurrent(const wxGLCanvas& win) const { - m_glContext = (wxGLContext*) NULL; + if ( !wglMakeCurrent(win.GetHDC(), m_glContext) ) + { + wxLogLastError(_T("wglMakeCurrent")); + return false; + } + return true; +} - bool ret = Create(parent, id, pos, size, style, name); +// ============================================================================ +// wxGLCanvas +// ============================================================================ - if ( ret ) - { - SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)); - SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); - } +IMPLEMENT_CLASS(wxGLCanvas, wxWindow) + +BEGIN_EVENT_TABLE(wxGLCanvas, wxWindow) + EVT_PALETTE_CHANGED(wxGLCanvas::OnPaletteChanged) + EVT_QUERY_NEW_PALETTE(wxGLCanvas::OnQueryNewPalette) +END_EVENT_TABLE() - m_hDC = (WXHDC) ::GetDC((HWND) GetHWND()); +// ---------------------------------------------------------------------------- +// wxGLCanvas construction +// ---------------------------------------------------------------------------- - SetupPixelFormat(attribList); - SetupPalette(palette); +void wxGLCanvas::Init() +{ +#if WXWIN_COMPATIBILITY_2_8 + m_glContext = NULL; +#endif + m_hDC = NULL; +} + +wxGLCanvas::wxGLCanvas(wxWindow *parent, + wxWindowID id, + const int *attribList, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name, + const wxPalette& palette) +{ + Init(); - 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 @@ -220,262 +259,283 @@ bool wxGLCanvas::Create(wxWindow *parent, 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; - - // We have to register a special window class because we need - // the CS_OWNDC style for GLCanvas. - - /* - From Angel Popov + wxCHECK_MSG( parent, false, wxT("can't create wxWindow without parent") ); - 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) ) - { - wxLogLastError(wxT("RegisterClass(wxGLCanvasClass)")); - return FALSE; - } - - // 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) ) + if ( !wxGLModule::RegisterClasses() ) { - wxLogLastError(wxT("RegisterClass(wxGLCanvasClassNameNoRedraw)")); - - ::UnregisterClass(wxGLCanvasClassName, wxhInstance); + wxLogError(_("Failed to register OpenGL window class.")); - return FALSE; + return false; } - s_registeredGLCanvasClass = TRUE; - } + if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) ) + return false; - wxCHECK_MSG( parent, FALSE, wxT("can't create wxWindow without parent") ); + parent->AddChild(this); - if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) ) - 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); - parent->AddChild(this); + if ( !MSWCreate(wxGLCanvasClassName, NULL, pos, size, msflags, exStyle) ) + return false; - DWORD msflags = 0; - if ( style & wxBORDER ) - msflags |= WS_BORDER; - if ( style & wxTHICK_FRAME ) - msflags |= WS_THICKFRAME; + m_hDC = ::GetDC(GetHwnd()); + if ( !m_hDC ) + 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. - */ + if ( !DoSetup(attribList) ) + return false; - msflags |= WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN; +#if wxUSE_PALETTE + if ( !SetupPalette(palette) ) + return false; +#else // !wxUSE_PALETTE + wxUnusedVar(palette); +#endif // wxUSE_PALETTE/!wxUSE_PALETTE - bool want3D; - WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D); + return true; +} - // 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; - } +// ---------------------------------------------------------------------------- +// operations +// ---------------------------------------------------------------------------- - return MSWCreate(wxGLCanvasClassName, NULL, pos, size, msflags, exStyle); +bool wxGLCanvas::SwapBuffers() +{ + if ( !::SwapBuffers(m_hDC) ) + { + return false; + wxLogLastError(_T("SwapBuffers")); + } + 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; + pfd.dwFlags &= ~PFD_DOUBLEBUFFER; pfd.iPixelType = PFD_TYPE_COLORINDEX; pfd.cColorBits = 0; int arg=0; - while( (attribList[arg]!=0) ) + while ( 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.cColorBits + + (pfd.cRedBits = attribList[arg++])); + break; + case WX_GL_MIN_GREEN: + pfd.cColorBits = (pfd.cColorBits + + (pfd.cGreenBits = attribList[arg++])); + break; + case WX_GL_MIN_BLUE: + pfd.cColorBits = (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.cAccumBits + + (pfd.cAccumRedBits = attribList[arg++])); + break; + case WX_GL_MIN_ACCUM_GREEN: + pfd.cAccumBits = (pfd.cAccumBits + + (pfd.cAccumGreenBits = attribList[arg++])); + break; + case WX_GL_MIN_ACCUM_BLUE: + pfd.cAccumBits = (pfd.cAccumBits + + (pfd.cAccumBlueBits = attribList[arg++])); + break; + case WX_GL_MIN_ACCUM_ALPHA: + pfd.cAccumBits = (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, // support double-buffering + PFD_TYPE_RGBA, // color type + 16, // preferred 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, // accumulator 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); + 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); +} + +/* 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; } -void wxGLCanvas::SetupPalette(const wxPalette& palette) +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 (m_palette.Ok()) + if ( !::SelectPalette(m_hDC, GetHpaletteOf(m_palette), FALSE) ) { - SelectPalette((HDC) m_hDC, (HPALETTE) m_palette.GetHPALETTE(), FALSE); - RealizePalette((HDC) m_hDC); + wxLogLastError(_T("SelectPalette")); + return false; } + + if ( ::RealizePalette(m_hDC) == GDI_ERROR ) + { + 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 */ { @@ -486,11 +546,11 @@ wxPalette wxGLCanvas::CreateDefaultPalette() for (i=0; ipalPalEntry[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; } } @@ -504,47 +564,20 @@ wxPalette wxGLCanvas::CreateDefaultPalette() return palette; } -void wxGLCanvas::SwapBuffers() -{ - if (m_glContext) - m_glContext->SwapBuffers(); -} - -void wxGLCanvas::OnSize(wxSizeEvent& 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 */ @@ -552,190 +585,84 @@ void wxGLCanvas::OnPaletteChanged(wxPaletteChangedEvent& event) 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. */ +#endif // wxUSE_PALETTE -/* EXT_vertex_array */ -void glArrayElementEXT(GLint i) -{ -} +// ---------------------------------------------------------------------------- +// deprecated wxGLCanvas methods using implicit wxGLContext +// ---------------------------------------------------------------------------- -void glColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer) -{ -} +// deprecated constructors creating an implicit m_glContext +#if WXWIN_COMPATIBILITY_2_8 -void glDrawArraysEXT(GLenum mode, GLint first, GLsizei count) +wxGLCanvas::wxGLCanvas(wxWindow *parent, + wxWindowID id, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name, + const int *attribList, + const wxPalette& palette) { -#ifdef GL_EXT_vertex_array - static PFNGLDRAWARRAYSEXTPROC proc = 0; - - if ( !proc ) - { - proc = (PFNGLDRAWARRAYSEXTPROC) wglGetProcAddress("glDrawArraysEXT"); - } - - if ( proc ) - (* proc) (mode, first, count); -#endif -} + Init(); -void glEdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *pointer) -{ + if ( Create(parent, id, pos, size, style, name, attribList, palette) ) + m_glContext = new wxGLContext(this); } -void glGetPointervEXT(GLenum pname, GLvoid* *params) +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(); -void glIndexPointerEXT(GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer) -{ + if ( Create(parent, id, pos, size, style, name, attribList, palette) ) + m_glContext = new wxGLContext(this, shared); } -void glNormalPointerEXT(GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer) +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) { -#ifdef GL_EXT_vertex_array - static PFNGLNORMALPOINTEREXTPROC proc = 0; + Init(); - if ( !proc ) - { - proc = (PFNGLNORMALPOINTEREXTPROC) wglGetProcAddress("glNormalPointerEXT"); - } - - if ( proc ) - (* proc) (type, stride, count, pointer); -#endif -} - -void glTexCoordPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, const GLvoid *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 target, GLsizei start, GLsizei count, GLenum format, GLenum type, const GLvoid *table) -{ -} - -/* EXT_color_table */ -void glColorTableEXT(GLenum target, GLenum internalformat, GLsizei width, GLenum format, GLenum type, const GLvoid *table) -{ -} - -void glCopyColorTableEXT(GLenum target, GLenum internalformat, GLint x, GLint y, GLsizei width) -{ -} - -void glGetColorTableEXT(GLenum target, GLenum format, GLenum type, GLvoid *table) -{ -} - -void glGetColorTableParamaterfvEXT(GLenum target, GLenum pname, GLfloat *params) -{ -} - -void glGetColorTavleParameterivEXT(GLenum target, GLenum pname, GLint *params) -{ -} - -/* SGI_compiled_vertex_array */ -void glLockArraysSGI(GLint first, GLsizei count) -{ + if ( Create(parent, id, pos, size, style, name, attribList, palette) ) + m_glContext = new wxGLContext(this, shared ? shared->m_glContext : NULL); } -void glUnlockArraysSGI() -{ -} +#endif // WXWIN_COMPATIBILITY_2_8 -/* SGI_cull_vertex */ -void glCullParameterdvSGI(GLenum pname, GLdouble* params) -{ -} - -void glCullParameterfvSGI(GLenum pname, GLfloat* params) -{ -} - -/* SGI_index_func */ -void glIndexFuncSGI(GLenum func, GLclampf ref) -{ -} - -/* SGI_index_material */ -void glIndexMaterialSGI(GLenum face, GLenum mode) -{ -} - -/* WIN_swap_hint */ -void glAddSwapHintRectWin(GLint x, GLint y, GLsizei width, GLsizei height) -{ -} - - -//--------------------------------------------------------------------------- +// ---------------------------------------------------------------------------- // 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