Gdkgl-win32

[Shane Blackett <s blackett auckland ac nz>]

Hi,

I am writing an application using gtk and gl and have used the gtkglarea
widget.

I built first under linux and then under Win32.

The win32 code from the CVS would not compile so I attempted to fix it
up in
line with the nonwin32 version.
I have been using it a bit now and it seems to be working.

In win32 I am building with gcc/mingw.

I have attached my changes to get it to compile plus
I changed the way it selects for an accumulation buffer so that I could
get some full screen antialiasing working although I suspect that it was 
a change I made somewhere in our code that actually fixed this up.

Shane Blackett.
Bioengineering Institute
The University of Auckland
New Zealand

Index: gdkgl-win32.c
===================================================================
RCS file: /cvs/gnome/gtkglarea/gtkgl/gdkgl-win32.c,v
retrieving revision 1.7
diff -r1.7 gdkgl-win32.c
41a42
>   pfd->cAccumBits = 0;
100,102c101,102
<       pfd->cAccumBits = 1;
<       ++p;
<       break;
---
>       pfd->cAccumBits += *(++p);
> 		break;
282a283
> 
305c306
< 	  gdk_gl_context_unref ( (GdkGLContext*)context->share );
---
> 	  g_object_unref ( context->share );
403,404c404,405
<   SelectObject ( private->hdc, private->hbitmap );
<   gdk_pixmap_unref ( private->pixmap );
---
>   SelectObject ( pixmap->hdc, pixmap->hbitmap );
>   gdk_pixmap_unref ( pixmap->pixmap );
423a425,427
>   g_return_val_if_fail(GDK_IS_VISUAL(visual), NULL);
>   g_return_val_if_fail(GDK_IS_PIXMAP(pixmap), NULL);
> 
427,431c431,434
<   context->initialised = FALSE;
<   context->hdc = NULL;
<   context->hbitmap = NULL;
<   context->pixmap = gdk_pixmap_ref ( pixmap );
<   context->ref_count = 1;
---
>   glpixmap->initialised = FALSE;
>   glpixmap->hdc = NULL;
>   glpixmap->hbitmap = NULL;
>   glpixmap->pixmap = gdk_pixmap_ref ( pixmap );
433c436
<   return context;
---
>   return glpixmap;
438,439c441,442
<   g_return_val_if_fail (GDK_IS_GL_PIXMAP(pixmap), FALSE );
<   g_return_val_if_fail (GDK_IS_GL_CONTEXTcontext), FALSE );
---
>   g_return_val_if_fail (GDK_IS_GL_PIXMAP(glpixmap), FALSE );
>   g_return_val_if_fail (GDK_IS_GL_CONTEXT(context), FALSE );
446c449
< 	glpixmap->hdc = context->hdc;
---
>     glpixmap->hdc = context->hdc;