X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0ace90958bccf60ac530ab127573599c78b7c522..89efaf2b6595e59af618556d7e79492cab50c73c:/src/x11/glcanvas.cpp diff --git a/src/x11/glcanvas.cpp b/src/x11/glcanvas.cpp index f45784eeab..2689a7af08 100644 --- a/src/x11/glcanvas.cpp +++ b/src/x11/glcanvas.cpp @@ -1,388 +1,98 @@ -///////////////////////////////////////////////////////////////////////////// -// Name: glcanvas.cpp -// Purpose: wxGLCanvas, for using OpenGL with wxWindows 2.0 for Motif. +/////////////////////////////////////////////////////////////////////////////// +// Name: src/x11/glcanvas.cpp +// Purpose: wxGLCanvas, for using OpenGL with wxWidgets // Uses the GLX extension. // Author: Julian Smart and Wolfram Gloger -// Modified by: +// Modified by: Vadim Zeitlin to update to new API // Created: 1995, 1999 // RCS-ID: $Id$ // Copyright: (c) Julian Smart, Wolfram Gloger -// Licence: wxWindows licence -///////////////////////////////////////////////////////////////////////////// +// Licence: wxWindows licence +/////////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "glcanvas.h" -#endif +// TODO: merge this with wxGTK version in some src/unix/glcanvasx11.cpp -#include "wx/setup.h" +// ============================================================================ +// declarations +// ============================================================================ -#if wxUSE_GLCANVAS +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- -#include "wx/glcanvas.h" -#include "wx/utils.h" -#include "wx/app.h" -#include "wx/log.h" - -#ifdef __VMS -# pragma message disable nosimpint -#endif -#include -#ifdef __VMS -# pragma message enable nosimpint -#endif -#include "wx/motif/private.h" +// for compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" -#ifdef OLD_MESA -// workaround for bug in Mesa's glx.c -static int bitcount( unsigned long n ) -{ - int bits; - for (bits=0; n>0;) { - if(n & 1) bits++; - n = n >> 1; - } - return bits; -} +#if defined(__BORLANDC__) + #pragma hdrstop #endif -/* - * GLContext implementation - */ - -IMPLEMENT_CLASS(wxGLContext,wxObject) - -wxGLContext::wxGLContext( bool WXUNUSED(isRGB), wxWindow *win, - const wxPalette& WXUNUSED(palette) ) -{ - m_window = win; - // m_widget = win->m_wxwindow; - - wxGLCanvas *gc = (wxGLCanvas*) win; - XVisualInfo *vi = (XVisualInfo *) gc->m_vi; - - wxCHECK_RET( vi, "invalid visual for OpenGl" ); - - m_glContext = glXCreateContext( (Display *)wxGetDisplay(), vi, - None, GL_TRUE); - - wxCHECK_RET( m_glContext, "Couldn't create OpenGl context" ); -} - -wxGLContext::wxGLContext( - bool WXUNUSED(isRGB), wxWindow *win, - const wxPalette& WXUNUSED(palette), - const wxGLContext *other /* for sharing display lists */ -) -{ - m_window = win; - // m_widget = win->m_wxwindow; - - wxGLCanvas *gc = (wxGLCanvas*) win; - XVisualInfo *vi = (XVisualInfo *) gc->m_vi; - - wxCHECK_RET( vi, "invalid visual for OpenGl" ); - - if( other != 0 ) - m_glContext = glXCreateContext( (Display *)wxGetDisplay(), vi, - other->m_glContext, GL_TRUE ); - else - m_glContext = glXCreateContext( (Display *)wxGetDisplay(), vi, - None, GL_TRUE ); - - wxCHECK_RET( m_glContext, "Couldn't create OpenGl context" ); -} - -wxGLContext::~wxGLContext() -{ - if (!m_glContext) return; - - if (m_glContext == glXGetCurrentContext()) - { - glXMakeCurrent( (Display*) wxGetDisplay(), None, NULL); - } - - glXDestroyContext( (Display*) wxGetDisplay(), m_glContext ); -} - -void wxGLContext::SwapBuffers() -{ - if (m_glContext) - { - Display* display = (Display*) wxGetDisplay(); - glXSwapBuffers(display, (Window) m_window->GetClientAreaWindow()); - } -} - -void wxGLContext::SetCurrent() -{ - if (m_glContext) - { - Display* display = (Display*) wxGetDisplay(); - glXMakeCurrent(display, (Window) m_window->GetClientAreaWindow(), - m_glContext );; - } -} - -void wxGLContext::SetColour(const char *colour) -{ - wxColour *the_colour = wxTheColourDatabase->FindColour(colour); - if(the_colour) { - GLboolean b; - glGetBooleanv(GL_RGBA_MODE, &b); - if(b) { - glColor3ub(the_colour->Red(), - the_colour->Green(), - the_colour->Blue()); - } else { - the_colour->CalcPixel(wxTheApp->GetMainColormap(wxGetDisplay())); - GLint pix = (GLint)the_colour->GetPixel(); - if(pix == -1) - { - wxLogError("wxGLCanvas: cannot allocate color\n"); - return; - } - glIndexi(pix); - } - } -} - -void wxGLContext::SetupPixelFormat() -{ -} - -void wxGLContext::SetupPalette( const wxPalette& WXUNUSED(palette) ) -{ -} - -wxPalette wxGLContext::CreateDefaultPalette() -{ - return wxNullPalette; -} - - - +#if wxUSE_GLCANVAS -/* - * GLCanvas implementation - */ +#include "wx/glcanvas.h" -IMPLEMENT_CLASS(wxGLCanvas, wxScrolledWindow) +#ifndef WX_PRECOMP + #include "wx/app.h" + #include "wx/utils.h" +#endif -BEGIN_EVENT_TABLE(wxGLCanvas, wxScrolledWindow) -// EVT_SIZE(wxGLCanvas::OnSize) -END_EVENT_TABLE() +// ============================================================================ +// implementation +// ============================================================================ +IMPLEMENT_CLASS(wxGLCanvas, wxWindow) -wxGLCanvas::wxGLCanvas( wxWindow *parent, wxWindowID id, - const wxPoint& pos, const wxSize& size, - long style, const wxString& name, - int *attribList, - const wxPalette& palette ) -: wxScrolledWindow(parent, id, pos, size, style, name) +wxGLCanvas::wxGLCanvas(wxWindow *parent, + wxWindowID id, + const int *attribList, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name, + const wxPalette& palette) { - Create( parent, NULL, NULL, id, pos, size, style, name, attribList, palette ); -} - -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(parent, id, pos, size, style, name) -{ - Create( parent, shared, NULL, id, pos, size, style, name, attribList, palette ); + Create(parent, id, pos, size, style, name, attribList, palette); } -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(parent, id, pos, size, style, name) -{ - Create( parent, NULL, shared, id, pos, size, style, name, attribList, palette ); -} - - -/* bool wxGLCanvas::Create(wxWindow *parent, - const wxGLContext *shared, const wxGLCanvas *shared_context_of, - wxWindowID id = -1, const wxPoint& pos, - const wxSize& size, long style, - const wxString& name, int *attribList, const wxPalette& palette): - wxScrolledWindow(parent, id, pos, size, style, name) -*/ - -bool wxGLCanvas::Create( wxWindow *parent, - const wxGLContext *shared, - const wxGLCanvas *shared_context_of, - wxWindowID id, - const wxPoint& pos, const wxSize& size, - long style, const wxString& name, - int *attribList, - const wxPalette& palette) + wxWindowID id, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name, + const int *attribList, + const wxPalette& palette) { - XVisualInfo *vi, vi_templ; - XWindowAttributes xwa; - int val, n; - - m_sharedContext = (wxGLContext*)shared; // const_cast - m_sharedContextOf = (wxGLCanvas*)shared_context_of; // const_cast - m_glContext = (wxGLContext*) NULL; - - Display* display = (Display*) wxGetDisplay(); - - // Check for the presence of the GLX extension - if(!glXQueryExtension(display, NULL, NULL)) { - wxDebugMsg("wxGLCanvas: GLX extension is missing\n"); - return false; - } + if ( !wxWindow::Create(parent, id, pos, size, style, name) ) + return false; - if(attribList) { - int data[512], arg=0, p=0; - - while( (attribList[arg]!=0) && (p<512) ) - { - switch( attribList[arg++] ) - { - case WX_GL_RGBA: data[p++] = GLX_RGBA; break; - case WX_GL_BUFFER_SIZE: - data[p++]=GLX_BUFFER_SIZE; data[p++]=attribList[arg++]; break; - case WX_GL_LEVEL: - data[p++]=GLX_LEVEL; data[p++]=attribList[arg++]; break; - case WX_GL_DOUBLEBUFFER: data[p++] = GLX_DOUBLEBUFFER; break; - case WX_GL_STEREO: data[p++] = GLX_STEREO; break; - case WX_GL_AUX_BUFFERS: - data[p++]=GLX_AUX_BUFFERS; data[p++]=attribList[arg++]; break; - case WX_GL_MIN_RED: - data[p++]=GLX_RED_SIZE; data[p++]=attribList[arg++]; break; - case WX_GL_MIN_GREEN: - data[p++]=GLX_GREEN_SIZE; data[p++]=attribList[arg++]; break; - case WX_GL_MIN_BLUE: - data[p++]=GLX_BLUE_SIZE; data[p++]=attribList[arg++]; break; - case WX_GL_MIN_ALPHA: - data[p++]=GLX_ALPHA_SIZE; data[p++]=attribList[arg++]; break; - case WX_GL_DEPTH_SIZE: - data[p++]=GLX_DEPTH_SIZE; data[p++]=attribList[arg++]; break; - case WX_GL_STENCIL_SIZE: - data[p++]=GLX_STENCIL_SIZE; data[p++]=attribList[arg++]; break; - case WX_GL_MIN_ACCUM_RED: - data[p++]=GLX_ACCUM_RED_SIZE; data[p++]=attribList[arg++]; break; - case WX_GL_MIN_ACCUM_GREEN: - data[p++]=GLX_ACCUM_GREEN_SIZE; data[p++]=attribList[arg++]; break; - case WX_GL_MIN_ACCUM_BLUE: - data[p++]=GLX_ACCUM_BLUE_SIZE; data[p++]=attribList[arg++]; break; - case WX_GL_MIN_ACCUM_ALPHA: - data[p++]=GLX_ACCUM_ALPHA_SIZE; data[p++]=attribList[arg++]; break; - default: - break; - } - } - data[p] = 0; - - attribList = (int*) data; - // Get an appropriate visual - vi = glXChooseVisual(display, DefaultScreen(display), attribList); - if(!vi) return false; - - // Here we should make sure that vi is the same visual as the - // one used by the xwindow drawable in wxCanvas. However, - // there is currently no mechanism for this in wx_canvs.cc. - } else { - // By default, we use the visual of xwindow - // NI: is this really senseful ? opengl in e.g. color index mode ? - XGetWindowAttributes(display, (Window) GetClientAreaWindow(), &xwa); - vi_templ.visualid = XVisualIDFromVisual(xwa.visual); - vi = XGetVisualInfo(display, VisualIDMask, &vi_templ, &n); - if(!vi) return false; - glXGetConfig(display, vi, GLX_USE_GL, &val); - if(!val) return false; - // Basically, this is it. It should be possible to use vi - // in glXCreateContext() below. But this fails with Mesa. - // I notified the Mesa author about it; there may be a fix. -#ifdef OLD_MESA - // Construct an attribute list matching the visual - int a_list[32]; - n = 0; - if(vi->c_class==TrueColor || vi->c_class==DirectColor) { // RGBA visual - a_list[n++] = GLX_RGBA; - a_list[n++] = GLX_RED_SIZE; - a_list[n++] = bitcount(vi->red_mask); - a_list[n++] = GLX_GREEN_SIZE; - a_list[n++] = bitcount(vi->green_mask); - a_list[n++] = GLX_BLUE_SIZE; - a_list[n++] = bitcount(vi->blue_mask); - glXGetConfig(display, vi, GLX_ALPHA_SIZE, &val); - a_list[n++] = GLX_ALPHA_SIZE; - a_list[n++] = val; - } else { // Color index visual - glXGetConfig(display, vi, GLX_BUFFER_SIZE, &val); - a_list[n++] = GLX_BUFFER_SIZE; - a_list[n++] = val; - } - a_list[n] = None; - // XFree(vi); - vi = glXChooseVisual(display, DefaultScreen(display), a_list); - if(!vi) return false; -#endif /* OLD_MESA */ - } - - m_vi = vi; // safe for later use - - wxCHECK_MSG( m_vi, FALSE, "required visual couldn't be found" ); - - // Create the GLX context and make it current - - wxGLContext *share= m_sharedContext; - if (share==NULL && m_sharedContextOf) - share = m_sharedContextOf->GetContext(); - - m_glContext = new wxGLContext( TRUE, this, wxNullPalette, share ); - -#ifndef OLD_MESA - // XFree(vi); -#endif - SetCurrent(); + if ( !InitVisual(attribList) ) + return false; return true; } -wxGLCanvas::~wxGLCanvas(void) -{ - XVisualInfo *vi = (XVisualInfo *) m_vi; - - if (vi) XFree( vi ); - if (m_glContext) delete m_glContext; - - // Display* display = (Display*) GetXDisplay(); - // if(glx_cx) glXDestroyContext(display, glx_cx); -} - -void wxGLCanvas::SwapBuffers() +Window wxGLCanvas::GetXWindow() const { - if( m_glContext ) m_glContext->SwapBuffers(); - - // Display* display = (Display*) GetXDisplay(); - // if(glx_cx) glXSwapBuffers(display, (Window) GetClientAreaWindow()); + return (Window) +#ifdef __WXMOTIF__ + GetClientXWindow(); +#else + GetClientAreaWindow(); +#endif } -void wxGLCanvas::SetCurrent() +int wxGLCanvas::GetColourIndex(const wxColour& col_) { - if( m_glContext ) m_glContext->SetCurrent(); + wxColour& col = const_cast(col_); - // Display* display = (Display*) GetXDisplay(); - // if(glx_cx) glXMakeCurrent(display, (Window) GetClientAreaWindow(), glx_cx); -} +#ifdef __WXMOTIF__ + col.AllocColour(GetXDisplay()); +#else + col.CalcPixel(wxTheApp->GetMainColormap(wxGetDisplay())); +#endif -void wxGLCanvas::SetColour(const char *col) -{ - if( m_glContext ) m_glContext->SetColour(col); + return col.GetPixel(); } -#endif - // wxUSE_GLCANVAS - +#endif // wxUSE_GLCANVAS