X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f6bcfd974ef26faf6f91a62cac09827e09463fd1..3f4a2351e4c677c88c18ea812b609477adee7380:/src/msw/glcanvas.cpp?ds=sidebyside diff --git a/src/msw/glcanvas.cpp b/src/msw/glcanvas.cpp index 78c1a4bd2d..64f90c4ef2 100644 --- a/src/msw/glcanvas.cpp +++ b/src/msw/glcanvas.cpp @@ -1,122 +1,208 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: glcanvas.cpp -// Purpose: wxGLCanvas, for using OpenGL with wxWindows under MS Windows +// Name: src/msw/glcanvas.cpp +// Purpose: wxGLCanvas, for using OpenGL with wxWidgets under MS Windows // Author: Julian Smart // Modified by: // Created: 04/01/98 // RCS-ID: $Id$ // Copyright: (c) Julian Smart -// Licence: wxWindows licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "glcanvas.h" -#endif - #include "wx/wxprec.h" #if defined(__BORLANDC__) -#pragma hdrstop + #pragma hdrstop #endif -#include - #if wxUSE_GLCANVAS #ifndef WX_PRECOMP -#include + #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 -#include -#include +#include "wx/msw/private.h" + +// DLL options compatibility check: +#include "wx/build.h" +WX_CHECK_BUILD_OPTIONS("wxGL") + +#include "wx/glcanvas.h" + +#if 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 + +/* + 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 -#include -wxChar wxGLCanvasClassName[] = wxT("wxGLCanvasClass"); +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); -/* - * GLContext implementation - */ +// ---------------------------------------------------------------------------- +// wxGLModule is responsible for unregistering wxGLCanvasClass Windows class +// ---------------------------------------------------------------------------- -wxGLContext::wxGLContext(bool isRGB, wxGLCanvas *win, const wxPalette& 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) -wxGLContext::wxGLContext( - bool isRGB, wxGLCanvas *win, - const wxPalette& palette, - const wxGLContext *other /* for sharing display lists */ -) +bool wxGLModule::ms_registeredGLClasses = false; + +/* static */ +bool wxGLModule::RegisterClasses() { - m_window = win; + if (ms_registeredGLClasses) + return true; + + // We have to register a special window class because we need the CS_OWNDC + // style for GLCanvas. + + /* + From Angel Popov + + 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." + */ - m_hDC = win->GetHDC(); + 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; + } + + // 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; } -wxGLContext::~wxGLContext() +/* static */ +void wxGLModule::UnregisterClasses() { - if (m_glContext) - { - wglMakeCurrent(NULL, NULL); - wglDeleteContext(m_glContext); - } + // 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::SwapBuffers() +/* + * GLContext implementation + */ + +IMPLEMENT_CLASS(wxGLContext, wxObject) + +wxGLContext::wxGLContext(wxGLCanvas* win, const wxGLContext* other /* for sharing display lists */) { - if (m_glContext) - { - wglMakeCurrent((HDC) m_hDC, m_glContext); - ::SwapBuffers((HDC) m_hDC); //blits the backbuffer into DC - } + m_glContext = wglCreateContext((HDC) win->GetHDC()); + wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGL context") ); + + if( other != 0 ) + wglShareLists( other->m_glContext, m_glContext ); } -void wxGLContext::SetCurrent() +wxGLContext::~wxGLContext() { - if (m_glContext) - { - wglMakeCurrent((HDC) m_hDC, m_glContext); - } - -/* - setupPixelFormat(hDC); - setupPalette(hDC); -*/ + // If this context happens to be the current context, wglDeleteContext() makes it un-current first. + wglDeleteContext(m_glContext); } -void wxGLContext::SetColour(const char *colour) +void wxGLContext::SetCurrent(const wxGLCanvas& win) const { - 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); - } + wglMakeCurrent((HDC) win.GetHDC(), m_glContext); } @@ -124,59 +210,76 @@ void wxGLContext::SetColour(const char *colour) * wxGLCanvas implementation */ -IMPLEMENT_CLASS(wxGLCanvas, wxScrolledWindow) +IMPLEMENT_CLASS(wxGLCanvas, wxWindow) -BEGIN_EVENT_TABLE(wxGLCanvas, wxScrolledWindow) +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 /* not used yet! */, const wxPalette& palette): - wxScrolledWindow() +wxGLCanvas::wxGLCanvas(wxWindow *parent, wxWindowID id, int *attribList, + const wxPoint& pos, const wxSize& size, long style, + const wxString& name, const wxPalette& palette) : wxWindow() { - m_glContext = (wxGLContext*) NULL; - - bool ret = Create(parent, id, pos, size, style, name); + m_glContext = NULL; - if ( ret ) + if (Create(parent, id, pos, size, style, name)) { - SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); - SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT)); + SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE)); } - m_hDC = (WXHDC) ::GetDC((HWND) GetHWND()); + m_hDC = (WXHDC) ::GetDC((HWND) GetHWND()); - SetupPixelFormat(); + SetupPixelFormat(attribList); SetupPalette(palette); - m_glContext = new wxGLContext(TRUE, this, palette); + // This ctor does *not* create an instance of wxGLContext, + // m_glContext intentionally remains NULL. +} + +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)); + } + + m_hDC = (WXHDC) ::GetDC((HWND) GetHWND()); + + SetupPixelFormat(attribList); + SetupPalette(palette); + + m_glContext = new wxGLContext(this); } 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 ) - : wxScrolledWindow() + : wxWindow() { - 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::GetColour(wxSYS_COLOUR_3DFACE)); + } - 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(this, shared); } // Not very useful for wxMSW, but this is to be wxGTK compliant @@ -184,191 +287,183 @@ wxGLCanvas::wxGLCanvas( wxWindow *parent, 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() + wxWindow() { - 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::GetColour(wxSYS_COLOUR_3DFACE)); + } - 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(this, sharedContext); } wxGLCanvas::~wxGLCanvas() { - if (m_glContext) - delete m_glContext; + delete m_glContext; ::ReleaseDC((HWND) GetHWND(), (HDC) m_hDC); } -// Replaces wxWindow::Create functionality, since we need to use a different window class -bool wxGLCanvas::Create(wxWindow *parent, wxWindowID id, - const wxPoint& pos, const wxSize& size, long style, const wxString& name) +// Replaces wxWindow::Create functionality, since we need to use a different +// window class +bool wxGLCanvas::Create(wxWindow *parent, + wxWindowID id, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name) { -/* Suggestion from Kelly Brock (not yet implemented): - -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(); - 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. -*/ - - static bool 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 - - 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 (!registeredGLCanvasClass) + if ( !wxGLModule::RegisterClasses() ) { - 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(wxT("RegisterClass(wxGLCanvasClass)")); - - return FALSE; - } - registeredGLCanvasClass = TRUE; - } + wxLogError(_("Failed to register OpenGL window class.")); - wxCHECK_MSG( parent, FALSE, wxT("can't create wxWindow without parent") ); + return false; + } if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) ) - return FALSE; + 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. -*/ + /* + 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; + WXDWORD exStyle = 0; + msflags |= WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN; + msflags |= MSWGetStyle(style, & exStyle) ; - bool want3D; - WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D); + return MSWCreate(wxGLCanvasClassName, NULL, pos, size, msflags, exStyle); +} - // 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; - } +static void AdjustPFDForAttributes(PIXELFORMATDESCRIPTOR& pfd, int *attribList) +{ + if (attribList) { + pfd.dwFlags &= ~PFD_DOUBLEBUFFER; + pfd.iPixelType = PFD_TYPE_COLORINDEX; + pfd.cColorBits = 0; + int arg=0; - // calculate the value to return from WM_GETDLGCODE handler - if ( GetWindowStyleFlag() & wxWANTS_CHARS ) + while( (attribList[arg]!=0) ) { - // want everything: i.e. all keys and WM_CHAR message - m_lDlgCode = DLGC_WANTARROWS | DLGC_WANTCHARS | - DLGC_WANTTAB | DLGC_WANTMESSAGE; + switch( attribList[arg++] ) + { + case WX_GL_RGBA: + pfd.iPixelType = PFD_TYPE_RGBA; + break; + case WX_GL_BUFFER_SIZE: + pfd.cColorBits = (BYTE)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 = (BYTE)attribList[arg++]; + break; + case WX_GL_MIN_RED: + pfd.cColorBits = (BYTE)(pfd.cColorBits + (pfd.cRedBits = (BYTE)attribList[arg++])); + break; + case WX_GL_MIN_GREEN: + pfd.cColorBits = (BYTE)(pfd.cColorBits + (pfd.cGreenBits = (BYTE)attribList[arg++])); + break; + case WX_GL_MIN_BLUE: + pfd.cColorBits = (BYTE)(pfd.cColorBits + (pfd.cBlueBits = (BYTE)attribList[arg++])); + break; + case WX_GL_MIN_ALPHA: + // doesn't count in cColorBits + pfd.cAlphaBits = (BYTE)attribList[arg++]; + break; + case WX_GL_DEPTH_SIZE: + pfd.cDepthBits = (BYTE)attribList[arg++]; + break; + case WX_GL_STENCIL_SIZE: + pfd.cStencilBits = (BYTE)attribList[arg++]; + break; + case WX_GL_MIN_ACCUM_RED: + pfd.cAccumBits = (BYTE)(pfd.cAccumBits + (pfd.cAccumRedBits = (BYTE)attribList[arg++])); + break; + case WX_GL_MIN_ACCUM_GREEN: + pfd.cAccumBits = (BYTE)(pfd.cAccumBits + (pfd.cAccumGreenBits = (BYTE)attribList[arg++])); + break; + case WX_GL_MIN_ACCUM_BLUE: + pfd.cAccumBits = (BYTE)(pfd.cAccumBits + (pfd.cAccumBlueBits = (BYTE)attribList[arg++])); + break; + case WX_GL_MIN_ACCUM_ALPHA: + pfd.cAccumBits = (BYTE)(pfd.cAccumBits + (pfd.cAccumAlphaBits = (BYTE)attribList[arg++])); + break; + default: + break; + } } - - 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 */ +void wxGLCanvas::SetupPixelFormat(int *attribList) // (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, /* 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, /* 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), wxT("ChoosePixelFormat failed."), wxT("Error"), - MB_ICONERROR | MB_OK); - exit(1); - } + AdjustPFDForAttributes(pfd, attribList); - if (SetPixelFormat((HDC) m_hDC, pixelFormat, &pfd) != TRUE) { - MessageBox(WindowFromDC((HDC) m_hDC), wxT("SetPixelFormat failed."), wxT("Error"), - MB_ICONERROR | MB_OK); - exit(1); + int pixelFormat = ChoosePixelFormat((HDC) m_hDC, &pfd); + if (pixelFormat == 0) { + wxLogLastError(_T("ChoosePixelFormat")); + } + else { + if ( !::SetPixelFormat((HDC) m_hDC, pixelFormat, &pfd) ) { + wxLogLastError(_T("SetPixelFormat")); } + } } void wxGLCanvas::SetupPalette(const wxPalette& palette) @@ -383,7 +478,7 @@ void wxGLCanvas::SetupPalette(const wxPalette& palette) } else { - return; + return; } m_palette = palette; @@ -395,8 +490,8 @@ void wxGLCanvas::SetupPalette(const wxPalette& palette) if (m_palette.Ok()) { - SelectPalette((HDC) m_hDC, (HPALETTE) m_palette.GetHPALETTE(), FALSE); - RealizePalette((HDC) m_hDC); + ::SelectPalette((HDC) m_hDC, (HPALETTE) m_palette.GetHPALETTE(), FALSE); + ::RealizePalette((HDC) m_hDC); } } @@ -408,29 +503,29 @@ wxPalette wxGLCanvas::CreateDefaultPalette() 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)); pPal->palVersion = 0x300; - pPal->palNumEntries = paletteSize; + pPal->palNumEntries = (WORD)paletteSize; /* build a simple RGB color palette */ { - int redMask = (1 << pfd.cRedBits) - 1; - int greenMask = (1 << pfd.cGreenBits) - 1; - int blueMask = (1 << pfd.cBlueBits) - 1; - int i; - - for (i=0; ipalPalEntry[i].peRed = - (((i >> pfd.cRedShift) & redMask) * 255) / redMask; - pPal->palPalEntry[i].peGreen = - (((i >> pfd.cGreenShift) & greenMask) * 255) / greenMask; - pPal->palPalEntry[i].peBlue = - (((i >> pfd.cBlueShift) & blueMask) * 255) / blueMask; - pPal->palPalEntry[i].peFlags = 0; - } + int redMask = (1 << pfd.cRedBits) - 1; + int greenMask = (1 << pfd.cGreenBits) - 1; + int blueMask = (1 << pfd.cBlueBits) - 1; + int i; + + for (i=0; ipalPalEntry[i].peRed = + (BYTE)((((i >> pfd.cRedShift) & redMask) * 255) / redMask); + pPal->palPalEntry[i].peGreen = + (BYTE)((((i >> pfd.cGreenShift) & greenMask) * 255) / greenMask); + pPal->palPalEntry[i].peBlue = + (BYTE)((((i >> pfd.cBlueShift) & blueMask) * 255) / blueMask); + pPal->palPalEntry[i].peFlags = 0; + } } HPALETTE hPalette = CreatePalette(pPal); @@ -444,200 +539,125 @@ wxPalette wxGLCanvas::CreateDefaultPalette() void wxGLCanvas::SwapBuffers() { - if (m_glContext) - m_glContext->SwapBuffers(); + ::SwapBuffers((HDC) m_hDC); } -void wxGLCanvas::OnSize(wxSizeEvent& event) +void wxGLCanvas::OnSize(wxSizeEvent& WXUNUSED(event)) { - int width, height; - GetClientSize(& width, & height); +} - if (m_glContext) - { - m_glContext->SetCurrent(); +void wxGLCanvas::SetCurrent(const wxGLContext& RC) const +{ + // although on MSW it works even if the window is still hidden, it doesn't + // under wxGTK and documentation mentions that SetCurrent() can only be + // called for a shown window, so check it + wxASSERT_MSG( GetParent()->IsShown(), _T("can't make hidden GL canvas current") ); - glViewport(0, 0, (GLint)width, (GLint)height); - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 15.0 ); - glMatrixMode(GL_MODELVIEW); - } + RC.SetCurrent(*this); } void wxGLCanvas::SetCurrent() { + // although on MSW it works even if the window is still hidden, it doesn't + // under wxGTK and documentation mentions that SetCurrent() can only be + // called for a shown window, so check it + wxASSERT_MSG( GetParent()->IsShown(), + _T("can't make hidden GL canvas current") ); + if (m_glContext) { - m_glContext->SetCurrent(); + m_glContext->SetCurrent(*this); } } -void wxGLCanvas::SetColour(const char *colour) +void wxGLCanvas::SetColour(const wxChar *colour) { - if (m_glContext) - m_glContext->SetColour(colour); + wxColour col = wxTheColourDatabase->Find(colour); + + if (col.Ok()) + { + float r = (float)(col.Red()/256.0); + float g = (float)(col.Green()/256.0); + float b = (float)(col.Blue()/256.0); + glColor3f( r, g, b); + } } // 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()); - 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(); - } -} - -/* Give extensions proper function names. */ - -/* EXT_vertex_array */ -void glArrayElementEXT(GLint i) -{ -} - -void glColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, const GLvoid *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 stride, GLsizei count, const GLboolean *pointer) -{ -} - -void glGetPointervEXT(GLenum pname, GLvoid* *params) -{ -} - -void glIndexPointerEXT(GLenum type, GLsizei stride, GLsizei count, const GLvoid *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 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) -{ + { + ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE()); + ::SelectPalette((HDC) GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE); + ::RealizePalette((HDC) GetHDC()); + Refresh(); + } } -void glUnlockArraysSGI() -{ -} +//--------------------------------------------------------------------------- +// wxGLApp +//--------------------------------------------------------------------------- + +IMPLEMENT_CLASS(wxGLApp, wxApp) + +bool wxGLApp::InitGLVisual(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, /* 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, /* 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 */ + }; -/* SGI_cull_vertex */ -void glCullParameterdvSGI(GLenum pname, GLdouble* params) -{ -} + AdjustPFDForAttributes(pfd, attribList); -void glCullParameterfvSGI(GLenum pname, GLfloat* params) -{ -} + // use DC for whole (root) screen, since no windows have yet been created + pixelFormat = ChoosePixelFormat(ScreenHDC(), &pfd); -/* SGI_index_func */ -void glIndexFuncSGI(GLenum func, GLclampf ref) -{ -} + if (pixelFormat == 0) { + wxLogError(_("Failed to initialize OpenGL")); + return false; + } -/* SGI_index_material */ -void glIndexMaterialSGI(GLenum face, GLenum mode) -{ + return true; } -/* WIN_swap_hint */ -void glAddSwapHintRectWin(GLint x, GLint y, GLsizei width, GLsizei height) +wxGLApp::~wxGLApp() { }