mentioned the new doc format

[wxWidgets.git] / src / x11 / glcanvas.cpp

diff --git a/src/x11/glcanvas.cpp b/src/x11/glcanvas.cpp
index a4e41c925d8fec5cb8746c636fb5d7d43f37e298..acc31346dd9f7366e7bab730f861c357581f291d 100644 (file)
--- a/src/x11/glcanvas.cpp
+++ b/src/x11/glcanvas.cpp
@@ -1,14 +1,24 @@
-/////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////

 // Name:        src/x11/glcanvas.cpp
 // Purpose:     wxGLCanvas, for using OpenGL with wxWidgets
 //              Uses the GLX extension.
 // Author:      Julian Smart and Wolfram Gloger
 // 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
 // Created:     1995, 1999
 // RCS-ID:      $Id$
 // Copyright:   (c) Julian Smart, Wolfram Gloger
 // Licence:     wxWindows licence

-/////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+
+// TODO: merge this with wxGTK version in some src/unix/glcanvasx11.cpp
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------

 
 // for compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // for compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"


@@ -22,394 +32,67 @@
 #include "wx/glcanvas.h"
 
 #ifndef WX_PRECOMP
 #include "wx/glcanvas.h"
 
 #ifndef WX_PRECOMP

-    #include "wx/log.h"

     #include "wx/app.h"
     #include "wx/app.h"

+    #include "wx/utils.h"

 #endif
 
 #endif
 

-#include "wx/utils.h"
-
-#ifdef __VMS
-# pragma message disable nosimpint
-#endif
-#include <X11/Xlib.h>
-#ifdef __VMS
-# pragma message enable nosimpint
-#endif
-#include "wx/x11/private.h"
-
-// DLL options compatibility check:
-#include "wx/build.h"
-WX_CHECK_BUILD_OPTIONS("wxGL")
-
-static inline WXWindow wxGetClientAreaWindow(wxWindow* win)
-{
-#ifdef __WXMOTIF__
-    return win->GetClientXWindow();
-#else
-    return win->GetClientAreaWindow();
-#endif
-}
-
-#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;
-}
-#endif
+// ============================================================================
+// implementation
+// ============================================================================

 
 

-/*
- * GLContext implementation
- */
+IMPLEMENT_CLASS(wxGLCanvas, wxWindow)

 
 

-IMPLEMENT_CLASS(wxGLContext,wxObject)
-
-wxGLContext::wxGLContext( bool WXUNUSED(isRGB), wxWindow *win,
-                          const wxPalette& WXUNUSED(palette) )
+wxGLCanvas::wxGLCanvas(wxWindow *parent,
+                       wxWindowID id,
+                       const int *attribList,
+                       const wxPoint& pos,
+                       const wxSize& size,
+                       long style,
+                       const wxString& name,
+                       const wxPalette& palette)

 {
 {

-    m_window = win;
-    // m_widget = win->m_wxwindow;
-
-    wxGLCanvas *gc = (wxGLCanvas*) win;
-    XVisualInfo *vi = (XVisualInfo *) gc->m_vi;
-
-    wxCHECK_RET( vi, wxT("invalid visual for OpenGL") );
-
-    m_glContext = glXCreateContext( (Display *)wxGetDisplay(), vi,
-                                    None, GL_TRUE);
-
-    wxCHECK_RET( m_glContext, wxT("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, wxT("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, wxT("Couldn't create OpenGL context") );
+    Create(parent, id, pos, size, style, name, attribList, palette);

 }
 
 }
 

-wxGLContext::~wxGLContext()
-{
-    if (!m_glContext) return;
-
-    if (m_glContext == glXGetCurrentContext())
-    {
-        glXMakeCurrent( (Display*) wxGetDisplay(), None, NULL);
-    }
-
-    glXDestroyContext( (Display*) wxGetDisplay(), m_glContext );
-}
+bool wxGLCanvas::Create(wxWindow *parent,
+                        wxWindowID id,
+                        const wxPoint& pos,
+                        const wxSize& size,
+                        long style,
+                        const wxString& name,
+                        const int *attribList,
+                        const wxPalette& palette)
+{
+    if ( !wxWindow::Create(parent, id, pos, size, style, name) )
+        return false;

 
 

-void wxGLContext::SwapBuffers()
-{
-    if (m_glContext)
-    {
-        Display* display = (Display*) wxGetDisplay();
-        glXSwapBuffers(display, (Window) wxGetClientAreaWindow(m_window));
-    }
-}
+    if ( !InitVisual(attribList) )
+        return false;

 
 

-void wxGLContext::SetCurrent()
-{
-    if (m_glContext)
-    {
-        Display* display = (Display*) wxGetDisplay();
-        glXMakeCurrent(display, (Window) wxGetClientAreaWindow(m_window),
-                       m_glContext );
-    }
+    return true;

 }
 
 }
 

-void wxGLContext::SetColour(const wxChar *colour)
+Window wxGLCanvas::GetXWindow() const

 {
 {

-    wxColour the_colour = wxTheColourDatabase->Find(colour);
-    if(the_colour.Ok())
-    {
-        GLboolean b;
-        glGetBooleanv(GL_RGBA_MODE, &b);
-        if(b)
-        {
-            glColor3ub(the_colour.Red(),
-                    the_colour.Green(),
-                    the_colour.Blue());
-        }
-        else
-        {
+    return (Window)

 #ifdef __WXMOTIF__
 #ifdef __WXMOTIF__

-            the_colour.AllocColour(m_window->GetXDisplay());
+        GetClientXWindow();

 #else
 #else

-            the_colour.CalcPixel(wxTheApp->GetMainColormap(wxGetDisplay()));
+        GetClientAreaWindow();

 #endif
 #endif

-            GLint pix = (GLint)the_colour.GetPixel();
-            if(pix == -1)
-            {
-                wxLogError(wxT("wxGLCanvas: cannot allocate color\n"));
-                return;
-            }
-            glIndexi(pix);
-        }
-    }
-}
-
-void wxGLContext::SetupPixelFormat()
-{
-}
-
-void wxGLContext::SetupPalette( const wxPalette& WXUNUSED(palette) )
-{
-}
-
-wxPalette wxGLContext::CreateDefaultPalette()
-{
-    return wxNullPalette;
-}
-
-
-
-
-/*
- * GLCanvas implementation
- */
-
-IMPLEMENT_CLASS(wxGLCanvas, wxScrolledWindow)
-
-BEGIN_EVENT_TABLE(wxGLCanvas, wxScrolledWindow)
-//    EVT_SIZE(wxGLCanvas::OnSize)
-END_EVENT_TABLE()
-
-
-wxGLCanvas::wxGLCanvas( wxWindow *parent, wxWindowID id,
-                        const wxPoint& pos, const wxSize& size,
-                        long style, const wxString& name,
-                        int *attribList,
-                        const wxPalette& palette )
-: wxScrolledWindow(parent, id, pos, size, style, name)
-{
-    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 );
-}
-
-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)
+int wxGLCanvas::GetColourIndex(const wxColour& col_)

 {
 {

-    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))
-    {
-        wxLogDebug(wxT("wxGLCanvas: GLX extension is missing\n"));
-        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;
+    wxColour& col = wx_const_cast(wxColour&, col_);

 
 

-      // 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)wxGetClientAreaWindow(this), &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, wxT("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);
+#ifdef __WXMOTIF__
+    col.AllocColour(GetXDisplay());
+#else
+    col.CalcPixel(wxTheApp->GetMainColormap(wxGetDisplay()));

 #endif
 #endif

-    SetCurrent();
-
-    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);
+    return col.GetPixel();

 }
 
 }
 

-void wxGLCanvas::SwapBuffers()
-{
-    if( m_glContext ) m_glContext->SwapBuffers();
-
-    // Display* display = (Display*) GetXDisplay();
-    // if(glx_cx) glXSwapBuffers(display, (Window) GetClientAreaWindow());
-}
-
-void wxGLCanvas::SetCurrent()
-{
-    if( m_glContext ) m_glContext->SetCurrent();
-
-    // Display* display = (Display*) GetXDisplay();
-    // if(glx_cx) glXMakeCurrent(display, (Window) GetClientAreaWindow(), glx_cx);
-}
-
-void wxGLCanvas::SetColour(const wxChar *col)
-{
-    if( m_glContext ) m_glContext->SetColour(col);
-}
-
-#endif
-    // wxUSE_GLCANVAS
+#endif // wxUSE_GLCANVAS