X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/c39d2e0a3822e695efdfb2ead77a09defd6ed8c1..404b319a85dadd7decf7a5a5331020520031a41c:/src/msw/glcanvas.cpp diff --git a/src/msw/glcanvas.cpp b/src/msw/glcanvas.cpp index b7035b4cd9..a16f03e7b8 100644 --- a/src/msw/glcanvas.cpp +++ b/src/msw/glcanvas.cpp @@ -29,7 +29,6 @@ #include "wx/intl.h" #include "wx/log.h" #include "wx/app.h" - #include "wx/module.h" #endif #include "wx/msw/private.h" @@ -51,40 +50,18 @@ LRESULT WXDLLEXPORT APIENTRY _EXPORT wxWndProc(HWND hWnd, UINT message, // ---------------------------------------------------------------------------- #ifndef WGL_ARB_pixel_format -#define WGL_NUMBER_PIXEL_FORMATS_ARB 0x2000 #define WGL_DRAW_TO_WINDOW_ARB 0x2001 -#define WGL_DRAW_TO_BITMAP_ARB 0x2002 #define WGL_ACCELERATION_ARB 0x2003 -#define WGL_NEED_PALETTE_ARB 0x2004 -#define WGL_NEED_SYSTEM_PALETTE_ARB 0x2005 -#define WGL_SWAP_LAYER_BUFFERS_ARB 0x2006 -#define WGL_SWAP_METHOD_ARB 0x2007 #define WGL_NUMBER_OVERLAYS_ARB 0x2008 #define WGL_NUMBER_UNDERLAYS_ARB 0x2009 -#define WGL_TRANSPARENT_ARB 0x200A -#define WGL_TRANSPARENT_RED_VALUE_ARB 0x2037 -#define WGL_TRANSPARENT_GREEN_VALUE_ARB 0x2038 -#define WGL_TRANSPARENT_BLUE_VALUE_ARB 0x2039 -#define WGL_TRANSPARENT_ALPHA_VALUE_ARB 0x203A -#define WGL_TRANSPARENT_INDEX_VALUE_ARB 0x203B -#define WGL_SHARE_DEPTH_ARB 0x200C -#define WGL_SHARE_STENCIL_ARB 0x200D -#define WGL_SHARE_ACCUM_ARB 0x200E -#define WGL_SUPPORT_GDI_ARB 0x200F #define WGL_SUPPORT_OPENGL_ARB 0x2010 #define WGL_DOUBLE_BUFFER_ARB 0x2011 #define WGL_STEREO_ARB 0x2012 -#define WGL_PIXEL_TYPE_ARB 0x2013 #define WGL_COLOR_BITS_ARB 0x2014 #define WGL_RED_BITS_ARB 0x2015 -#define WGL_RED_SHIFT_ARB 0x2016 #define WGL_GREEN_BITS_ARB 0x2017 -#define WGL_GREEN_SHIFT_ARB 0x2018 #define WGL_BLUE_BITS_ARB 0x2019 -#define WGL_BLUE_SHIFT_ARB 0x201A #define WGL_ALPHA_BITS_ARB 0x201B -#define WGL_ALPHA_SHIFT_ARB 0x201C -#define WGL_ACCUM_BITS_ARB 0x201D #define WGL_ACCUM_RED_BITS_ARB 0x201E #define WGL_ACCUM_GREEN_BITS_ARB 0x201F #define WGL_ACCUM_BLUE_BITS_ARB 0x2020 @@ -92,14 +69,7 @@ LRESULT WXDLLEXPORT APIENTRY _EXPORT wxWndProc(HWND hWnd, UINT message, #define WGL_DEPTH_BITS_ARB 0x2022 #define WGL_STENCIL_BITS_ARB 0x2023 #define WGL_AUX_BUFFERS_ARB 0x2024 -#define WGL_NO_ACCELERATION_ARB 0x2025 -#define WGL_GENERIC_ACCELERATION_ARB 0x2026 #define WGL_FULL_ACCELERATION_ARB 0x2027 -#define WGL_SWAP_EXCHANGE_ARB 0x2028 -#define WGL_SWAP_COPY_ARB 0x2029 -#define WGL_SWAP_UNDEFINED_ARB 0x202A -#define WGL_TYPE_RGBA_ARB 0x202B -#define WGL_TYPE_COLORINDEX_ARB 0x202C #endif #ifndef WGL_ARB_multisample @@ -133,110 +103,6 @@ LRESULT WXDLLEXPORT APIENTRY _EXPORT wxWndProc(HWND hWnd, UINT message, # pragma comment( lib, "glu32" ) #endif -// ---------------------------------------------------------------------------- -// constants -// ---------------------------------------------------------------------------- - -static const wxChar *wxGLCanvasClassName = wxT("wxGLCanvasClass"); -static const wxChar *wxGLCanvasClassNameNoRedraw = wxT("wxGLCanvasClassNR"); - -// ============================================================================ -// implementation -// ============================================================================ - -// ---------------------------------------------------------------------------- -// wxGLModule is responsible for unregistering wxGLCanvasClass Windows class -// ---------------------------------------------------------------------------- - -class wxGLModule : public wxModule -{ -public: - bool OnInit() { return true; } - void OnExit() { UnregisterClasses(); } - - // register the GL classes if not done yet, return true if ok, false if - // registration failed - static bool RegisterClasses(); - - // unregister the classes, done automatically on program termination - static void UnregisterClasses(); - -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; - -/* static */ -bool wxGLModule::RegisterClasses() -{ - 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; - - // 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) ) - { - wxLogLastError(wxT("RegisterClass(wxGLCanvasClassNameNoRedraw)")); - - ::UnregisterClass(wxGLCanvasClassName, wxhInstance); - - return false; - } - - ms_registeredGLClasses = true; - - return true; -} - -/* static */ -void wxGLModule::UnregisterClasses() -{ - // 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; - } -} - // ---------------------------------------------------------------------------- // wxGLContext // ---------------------------------------------------------------------------- @@ -251,7 +117,9 @@ wxGLContext::wxGLContext(wxGLCanvas *win, const wxGLContext* other) if ( other ) { if ( !wglShareLists(other->m_glContext, m_glContext) ) - wxLogLastError(_T("wglShareLists")); + { + wxLogLastError(wxT("wglShareLists")); + } } } @@ -265,7 +133,7 @@ bool wxGLContext::SetCurrent(const wxGLCanvas& win) const { if ( !wglMakeCurrent(win.GetHDC(), m_glContext) ) { - wxLogLastError(_T("wglMakeCurrent")); + wxLogLastError(wxT("wglMakeCurrent")); return false; } return true; @@ -278,14 +146,18 @@ bool wxGLContext::SetCurrent(const wxGLCanvas& win) const IMPLEMENT_CLASS(wxGLCanvas, wxWindow) BEGIN_EVENT_TABLE(wxGLCanvas, wxWindow) +#if wxUSE_PALETTE EVT_PALETTE_CHANGED(wxGLCanvas::OnPaletteChanged) EVT_QUERY_NEW_PALETTE(wxGLCanvas::OnQueryNewPalette) +#endif END_EVENT_TABLE() // ---------------------------------------------------------------------------- // wxGLCanvas construction // ---------------------------------------------------------------------------- +static int ChoosePixelFormatARB(HDC hdc, const int *attribList); + void wxGLCanvas::Init() { #if WXWIN_COMPATIBILITY_2_8 @@ -315,24 +187,15 @@ wxGLCanvas::~wxGLCanvas() // 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, - const int *attribList, - const wxPalette& palette) +bool wxGLCanvas::CreateWindow(wxWindow *parent, + wxWindowID id, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name) { wxCHECK_MSG( parent, false, wxT("can't create wxWindow without parent") ); - if ( !wxGLModule::RegisterClasses() ) - { - wxLogError(_("Failed to register OpenGL window class.")); - - return false; - } - if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) ) return false; @@ -348,16 +211,80 @@ bool wxGLCanvas::Create(wxWindow *parent, DWORD msflags = WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS | WS_CLIPCHILDREN; msflags |= MSWGetStyle(style, &exStyle); - if ( !MSWCreate(wxGLCanvasClassName, NULL, pos, size, msflags, exStyle) ) + if ( !MSWCreate(wxApp::GetRegisteredClassName(wxT("wxGLCanvas"), -1, CS_OWNDC), + NULL, pos, size, msflags, exStyle) ) return false; m_hDC = ::GetDC(GetHwnd()); if ( !m_hDC ) return false; - if ( !DoSetup(attribList) ) + return true; +} + +bool wxGLCanvas::Create(wxWindow *parent, + wxWindowID id, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name, + const int *attribList, + const wxPalette& palette) +{ + // Create the window first: we will either use it as is or use it to query + // for multisampling support and recreate it later with another pixel format + if ( !CreateWindow(parent, id, pos, size, style, name) ) return false; + PIXELFORMATDESCRIPTOR pfd; + const int setupVal = DoSetup(pfd, attribList); + if ( setupVal == 0 ) // PixelFormat error + return false; + + if ( setupVal == -1 ) // FSAA requested + { + // now that we have a valid OpenGL window, query it for FSAA support + int pixelFormat; + { + wxGLContext ctx(this); + ctx.SetCurrent(*this); + pixelFormat = ::ChoosePixelFormatARB(m_hDC, attribList); + } + + if ( pixelFormat > 0 ) + { + // from http://msdn.microsoft.com/en-us/library/ms537559(VS.85).aspx: + // + // Setting the pixel format of a window more than once can + // lead to significant complications for the Window Manager + // and for multithread applications, so it is not allowed. An + // application can only set the pixel format of a window one + // time. Once a window's pixel format is set, it cannot be + // changed. + // + // so we need to delete the old window and create the new one + + // destroy Window + ::ReleaseDC(GetHwnd(), m_hDC); + m_hDC = 0; + + parent->RemoveChild(this); + const HWND hwnd = GetHwnd(); + DissociateHandle(); // will do SetHWND(0); + ::DestroyWindow(hwnd); + + // now recreate with FSAA pixelFormat + if ( !CreateWindow(parent, id, pos, size, style, name) ) + return false; + + if ( !::SetPixelFormat(m_hDC, pixelFormat, &pfd) ) + { + wxLogLastError(wxT("SetPixelFormat")); + return false; + } + } + } + #if wxUSE_PALETTE if ( !SetupPalette(palette) ) return false; @@ -376,7 +303,7 @@ bool wxGLCanvas::SwapBuffers() { if ( !::SwapBuffers(m_hDC) ) { - wxLogLastError(_T("SwapBuffers")); + wxLogLastError(wxT("SwapBuffers")); return false; } @@ -568,12 +495,21 @@ static int ChoosePixelFormatARB(HDC hdc, const int *attribList) int pf; UINT numFormats = 0; + if ( !wglChoosePixelFormatARB(hdc, iAttributes, NULL, 1, &pf, &numFormats) ) { - wxLogLastError(_T("wglChoosePixelFormatARB")); + wxLogLastError(wxT("wglChoosePixelFormatARB")); return 0; } + // Although TRUE is returned if no matching formats are found (see + // http://www.opengl.org/registry/specs/ARB/wgl_pixel_format.txt), pf is + // not initialized in this case so we need to check for numFormats being + // not 0 explicitly (however this is not an error so don't call + // wxLogLastError() here). + if ( !numFormats ) + pf = 0; + return pf; } @@ -595,6 +531,7 @@ AdjustPFDForAttributes(PIXELFORMATDESCRIPTOR& pfd, const int *attribList) pfd.dwFlags &= ~PFD_DOUBLEBUFFER; pfd.iPixelType = PFD_TYPE_COLORINDEX; + bool requestFSAA = false; for ( int arg = 0; attribList[arg]; ) { switch ( attribList[arg++] ) @@ -673,11 +610,14 @@ AdjustPFDForAttributes(PIXELFORMATDESCRIPTOR& pfd, const int *attribList) case WX_GL_SAMPLE_BUFFERS: case WX_GL_SAMPLES: - return -1; + // There is no support for multisample when using PIXELFORMATDESCRIPTOR + requestFSAA = true; // Remember that multi sample is requested. + arg++; // will call ChoosePixelFormatARB() later + break; } } - return 1; + return requestFSAA ? -1 : 1; } /* static */ @@ -730,7 +670,9 @@ wxGLCanvas::ChooseMatchingPixelFormat(HDC hdc, return 0; case -1: - return ::ChoosePixelFormatARB(hdc, attribList); + // requestFSAA == true, will continue as normal + // in order to query later for a FSAA pixelformat + return -1; } } @@ -742,23 +684,27 @@ bool wxGLCanvasBase::IsDisplaySupported(const int *attribList) return wxGLCanvas::ChooseMatchingPixelFormat(ScreenHDC(), attribList) > 0; } -bool wxGLCanvas::DoSetup(const int *attribList) +int wxGLCanvas::DoSetup(PIXELFORMATDESCRIPTOR &pfd, const int *attribList) { - PIXELFORMATDESCRIPTOR pfd; - const int pixelFormat = ChooseMatchingPixelFormat(m_hDC, attribList, &pfd); + int pixelFormat = ChooseMatchingPixelFormat(m_hDC, attribList, &pfd); + + const bool requestFSAA = pixelFormat == -1; + if ( requestFSAA ) + pixelFormat = ::ChoosePixelFormat(m_hDC, &pfd); + if ( !pixelFormat ) { - wxLogLastError(_T("ChoosePixelFormat")); - return false; + wxLogLastError(wxT("ChoosePixelFormat")); + return 0; } if ( !::SetPixelFormat(m_hDC, pixelFormat, &pfd) ) { - wxLogLastError(_T("SetPixelFormat")); - return false; + wxLogLastError(wxT("SetPixelFormat")); + return 0; } - return true; + return requestFSAA ? -1 : 1; } // ---------------------------------------------------------------------------- @@ -772,14 +718,14 @@ bool wxGLCanvas::SetupPalette(const wxPalette& palette) const int pixelFormat = ::GetPixelFormat(m_hDC); if ( !pixelFormat ) { - wxLogLastError(_T("GetPixelFormat")); + wxLogLastError(wxT("GetPixelFormat")); return false; } PIXELFORMATDESCRIPTOR pfd; if ( !::DescribePixelFormat(m_hDC, pixelFormat, sizeof(pfd), &pfd) ) { - wxLogLastError(_T("DescribePixelFormat")); + wxLogLastError(wxT("DescribePixelFormat")); return false; } @@ -788,22 +734,22 @@ bool wxGLCanvas::SetupPalette(const wxPalette& palette) m_palette = palette; - if ( !m_palette.Ok() ) + if ( !m_palette.IsOk() ) { m_palette = CreateDefaultPalette(); - if ( !m_palette.Ok() ) + if ( !m_palette.IsOk() ) return false; } if ( !::SelectPalette(m_hDC, GetHpaletteOf(m_palette), FALSE) ) { - wxLogLastError(_T("SelectPalette")); + wxLogLastError(wxT("SelectPalette")); return false; } if ( ::RealizePalette(m_hDC) == GDI_ERROR ) { - wxLogLastError(_T("RealizePalette")); + wxLogLastError(wxT("RealizePalette")); return false; } @@ -853,7 +799,7 @@ wxPalette wxGLCanvas::CreateDefaultPalette() void wxGLCanvas::OnQueryNewPalette(wxQueryNewPaletteEvent& event) { /* realize palette if this is the current window */ - if ( GetPalette()->Ok() ) { + if ( GetPalette()->IsOk() ) { ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE()); ::SelectPalette(GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE); ::RealizePalette(GetHDC()); @@ -868,7 +814,7 @@ void wxGLCanvas::OnPaletteChanged(wxPaletteChangedEvent& event) { /* realize palette if this is *not* the current window */ if ( GetPalette() && - GetPalette()->Ok() && (this != event.GetChangedWindow()) ) + GetPalette()->IsOk() && (this != event.GetChangedWindow()) ) { ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE()); ::SelectPalette(GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE);