public static Gdk.Visual GetBestWithDepth(int depth)
{
IntPtr raw_ret = gdk_visual_get_best_with_depth(depth);
Gdk.Visual ret = GLib.Object.GetObject(raw_ret) as Gdk.Visual;
return(ret);
}
public static Gdk.Visual GetBestWithBoth(int depth, Gdk.VisualType visual_type)
{
IntPtr raw_ret = gdk_visual_get_best_with_both(depth, (int)visual_type);
Gdk.Visual ret = GLib.Object.GetObject(raw_ret) as Gdk.Visual;
return(ret);
}
public Context(Gdk.Screen screen,
Context share_list,
int [] attr)
{
IntPtr xdisplay = GdkUtils.GetXDisplay(screen.Display);
IntPtr visual_info = IntPtr.Zero;
// Be careful about the first glx call and handle the exception
// with more grace.
try {
visual_info = glXChooseVisual(xdisplay,
screen.Number,
attr);
} catch (DllNotFoundException e) {
throw new GlxException("Unable to find OpenGL libarary", e);
} catch (EntryPointNotFoundException enf) {
throw new GlxException("Unable to find Glx entry point", enf);
}
if (visual_info == IntPtr.Zero)
{
throw new GlxException("Unable to find matching visual");
}
XVisualInfo xinfo = (XVisualInfo)Marshal.PtrToStructure(visual_info, typeof(XVisualInfo));
HandleRef share = share_list != null ? share_list.Handle : new HandleRef(null, IntPtr.Zero);
IntPtr tmp = glXCreateContext(xdisplay, visual_info, share, true);
if (tmp == IntPtr.Zero)
{
throw new GlxException("Unable to create context");
}
handle = new HandleRef(this, tmp);
visual = GdkUtils.LookupVisual(screen, xinfo.visualid);
if (visual_info != IntPtr.Zero)
{
XFree(visual_info);
}
}
public Gdk.Colormap GetColormap(Gdk.Screen screen, )
{
DrawableFormat template = new DrawableFormat();
template.Color = new ColorFormat();
FormatMask mask = FormatMask.None;
int num = screen.Number;
IntPtr dformat = GlitzAPI.glitz_glx_find_window_format(GdkUtils.GetXDisplay(screen.Display),
num,
mask,
ref template,
0);
visual_info = GlitzAPI.glitz_glx_get_visual_info_from_format(dpy, scr, dformat);
Gdk.Visual visual = new Gdk.Visual(gdkx_visual_get(XVisualIDFromVisual(vinfo)));
new Gdk.Colormap(visual, true);
* /
}
void HandleRealized(object sender, EventArgs eventArgs)
{
if (renderingContextHandle.Handle != IntPtr.Zero)
{
return;
}
switch (platformID)
{
case PlatformID.Win32NT:
case PlatformID.Win32S:
case PlatformID.Win32Windows:
case PlatformID.WinCE:
LoadLibrary("opengl32.dll");
IntPtr windowHandle = gdk_win32_drawable_get_handle(GdkWindow.Handle);
IntPtr deviceContext = GetDC(windowHandle);
PIXELFORMATDESCRIPTOR pixelFormatDescriptor = new PIXELFORMATDESCRIPTOR();
pixelFormatDescriptor.nSize = (short)System.Runtime.InteropServices.Marshal.SizeOf(pixelFormatDescriptor);
pixelFormatDescriptor.nVersion = 1;
pixelFormatDescriptor.iPixelType = PFD_TYPE_RGBA;
pixelFormatDescriptor.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL;
if (doubleBuffer)
{
pixelFormatDescriptor.dwFlags |= PFD_DOUBLEBUFFER;
}
pixelFormatDescriptor.cColorBits = colorBits;
pixelFormatDescriptor.cAlphaBits = alphaBits;
pixelFormatDescriptor.cDepthBits = depthBits;
pixelFormatDescriptor.cStencilBits = stencilBits;
int pixelFormat = ChoosePixelFormat(deviceContext, ref pixelFormatDescriptor);
if (!SetPixelFormat(deviceContext, pixelFormat, ref pixelFormatDescriptor))
{
throw new Exception("Cannot SetPixelFormat!");
}
IntPtr renderingContext = wglCreateContext(deviceContext);
renderingContextHandle = new HandleRef(this, renderingContext);
ReleaseDC(windowHandle, deviceContext);
break;
case PlatformID.Unix:
default:
int[] attributeList = new int[24];
int attributeIndex = 0;
attributeList[attributeIndex++] = GLX_RGBA;
if (doubleBuffer)
{
attributeList[attributeIndex++] = GLX_DOUBLEBUFFER;
}
attributeList[attributeIndex++] = GLX_RED_SIZE;
attributeList[attributeIndex++] = 1;
attributeList[attributeIndex++] = GLX_GREEN_SIZE;
attributeList[attributeIndex++] = 1;
attributeList[attributeIndex++] = GLX_BLUE_SIZE;
attributeList[attributeIndex++] = 1;
if (alphaBits != 0)
{
attributeList[attributeIndex++] = GLX_ALPHA_SIZE;
attributeList[attributeIndex++] = 1;
}
if (depthBits != 0)
{
attributeList[attributeIndex++] = GLX_DEPTH_SIZE;
attributeList[attributeIndex++] = 1;
}
if (stencilBits != 0)
{
attributeList[attributeIndex++] = GLX_STENCIL_SIZE;
attributeList[attributeIndex++] = 1;
}
attributeList[attributeIndex++] = GLX_NONE;
IntPtr xDisplay = gdk_x11_display_get_xdisplay(Screen.Display.Handle);
IntPtr visualIntPtr = IntPtr.Zero;
try
{
visualIntPtr = glXChooseVisual(xDisplay, Screen.Number, attributeList);
}
catch (DllNotFoundException e)
{
throw new Exception("OpenGL dll not found!", e);
}
catch (EntryPointNotFoundException enf)
{
throw new Exception("Glx entry point not found!", enf);
}
if (visualIntPtr == IntPtr.Zero)
{
throw new Exception("Visual");
}
XVisualInfo xVisualInfo = (XVisualInfo)Marshal.PtrToStructure(visualIntPtr, typeof(XVisualInfo));
IntPtr xRenderingContext = IntPtr.Zero;
xRenderingContext = glXCreateContext(xDisplay, visualIntPtr, new HandleRef(null, IntPtr.Zero), true);
if (xRenderingContext == IntPtr.Zero)
{
throw new Exception("Unable to create rendering context");
}
renderingContextHandle = new HandleRef(this, xRenderingContext);
visual = (Gdk.Visual)GLib.Object.GetObject(gdk_x11_screen_lookup_visual(Screen.Handle, xVisualInfo.visualid));
if (visualIntPtr != IntPtr.Zero)
{
XFree(visualIntPtr);
}
break;
}
}
public Gdk.Colormap GetColormap (Gdk.Screen screen, )
{
DrawableFormat template = new DrawableFormat ();
template.Color = new ColorFormat ();
FormatMask mask = FormatMask.None;
int num = screen.Number;
IntPtr dformat = GlitzAPI.glitz_glx_find_window_format (GdkUtils.GetXDisplay (screen.Display),
num,
mask,
ref template,
0);
visual_info = GlitzAPI.glitz_glx_get_visual_info_from_format (dpy, scr, dformat);
Gdk.Visual visual = new Gdk.Visual (gdkx_visual_get (XVisualIDFromVisual (vinfo)));
new Gdk.Colormap (visual, true);
*/
}
public Context (Gdk.Screen screen,
Context share_list,
int [] attr)
{
IntPtr xdisplay = GdkUtils.GetXDisplay (screen.Display);
IntPtr visual_info = IntPtr.Zero;
// Be careful about the first glx call and handle the exception
// with more grace.
try {
visual_info = glXChooseVisual (xdisplay,
screen.Number,
attr);
} catch (DllNotFoundException e) {
throw new GlxException ("Unable to find OpenGL libarary", e);
} catch (EntryPointNotFoundException enf) {
throw new GlxException ("Unable to find Glx entry point", enf);
}
if (visual_info == IntPtr.Zero)
throw new GlxException ("Unable to find matching visual");
XVisualInfo xinfo = (XVisualInfo) Marshal.PtrToStructure (visual_info, typeof (XVisualInfo));
HandleRef share = share_list != null ? share_list.Handle : new HandleRef (null, IntPtr.Zero);
IntPtr tmp = glXCreateContext (xdisplay, visual_info, share, true);
if (tmp == IntPtr.Zero)
throw new GlxException ("Unable to create context");
handle = new HandleRef (this, tmp);
visual = GdkUtils.LookupVisual (screen, xinfo.visualid);
if (visual_info != IntPtr.Zero)
XFree (visual_info);
}
void HandleRealized(object sender, EventArgs eventArgs)
{
if (renderingContextHandle.Handle != IntPtr.Zero)
return;
switch (platformID)
{
case PlatformID.Win32NT:
case PlatformID.Win32S:
case PlatformID.Win32Windows:
case PlatformID.WinCE:
LoadLibrary("opengl32.dll");
IntPtr windowHandle = gdk_win32_drawable_get_handle(GdkWindow.Handle);
IntPtr deviceContext = GetDC(windowHandle);
PIXELFORMATDESCRIPTOR pixelFormatDescriptor = new PIXELFORMATDESCRIPTOR();
pixelFormatDescriptor.nSize = (short)System.Runtime.InteropServices.Marshal.SizeOf(pixelFormatDescriptor);
pixelFormatDescriptor.nVersion = 1;
pixelFormatDescriptor.iPixelType = PFD_TYPE_RGBA;
pixelFormatDescriptor.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL;
if (doubleBuffer) pixelFormatDescriptor.dwFlags |= PFD_DOUBLEBUFFER;
pixelFormatDescriptor.cColorBits = colorBits;
pixelFormatDescriptor.cAlphaBits = alphaBits;
pixelFormatDescriptor.cDepthBits = depthBits;
pixelFormatDescriptor.cStencilBits = stencilBits;
int pixelFormat = ChoosePixelFormat(deviceContext, ref pixelFormatDescriptor);
if (!SetPixelFormat(deviceContext, pixelFormat, ref pixelFormatDescriptor)) throw new Exception("Cannot SetPixelFormat!");
IntPtr renderingContext = wglCreateContext(deviceContext);
renderingContextHandle = new HandleRef(this, renderingContext);
ReleaseDC(windowHandle, deviceContext);
if (sharedContextWidget != null)
{
GLWidget primaryWidget = sharedContextWidget;
while (primaryWidget.sharedContextWidget != null) primaryWidget = primaryWidget.sharedContextWidget;
if (primaryWidget.RenderingContextHandle.Handle != IntPtr.Zero)
{
wglShareLists(primaryWidget.RenderingContextHandle.Handle, RenderingContextHandle.Handle);
}
else
{
this.sharedContextWidget = null;
primaryWidget.sharedContextWidget = this;
}
}
break;
case PlatformID.Unix:
default:
int[] attributeList = new int[24];
int attributeIndex = 0;
attributeList[attributeIndex++] = GLX_RGBA;
if (doubleBuffer) attributeList[attributeIndex++] = GLX_DOUBLEBUFFER;
attributeList[attributeIndex++] = GLX_RED_SIZE;
attributeList[attributeIndex++] = 1;
attributeList[attributeIndex++] = GLX_GREEN_SIZE;
attributeList[attributeIndex++] = 1;
attributeList[attributeIndex++] = GLX_BLUE_SIZE;
attributeList[attributeIndex++] = 1;
if (alphaBits != 0)
{
attributeList[attributeIndex++] = GLX_ALPHA_SIZE;
attributeList[attributeIndex++] = 1;
}
if (depthBits != 0)
{
attributeList[attributeIndex++] = GLX_DEPTH_SIZE;
attributeList[attributeIndex++] = 1;
}
if (stencilBits != 0)
{
attributeList[attributeIndex++] = GLX_STENCIL_SIZE;
attributeList[attributeIndex++] = 1;
}
attributeList[attributeIndex++] = GLX_NONE;
IntPtr xDisplay = gdk_x11_display_get_xdisplay(Screen.Display.Handle);
IntPtr visualIntPtr = IntPtr.Zero;
try
{
visualIntPtr = glXChooseVisual(xDisplay, Screen.Number, attributeList);
}
catch (DllNotFoundException e)
{
throw new Exception("OpenGL dll not found!", e);
}
catch (EntryPointNotFoundException enf)
{
throw new Exception("Glx entry point not found!", enf);
}
if (visualIntPtr == IntPtr.Zero)
{
throw new Exception("Visual");
}
XVisualInfo xVisualInfo = (XVisualInfo)Marshal.PtrToStructure(visualIntPtr, typeof(XVisualInfo));
IntPtr xRenderingContext = IntPtr.Zero;
if (sharedContextWidget != null)
{
GLWidget primaryWidget = sharedContextWidget;
while (primaryWidget.sharedContextWidget != null) primaryWidget = primaryWidget.sharedContextWidget;
if (primaryWidget.RenderingContextHandle.Handle != IntPtr.Zero)
{
xRenderingContext = glXCreateContext(xDisplay, visualIntPtr, primaryWidget.RenderingContextHandle, true);
}
else
{
xRenderingContext = glXCreateContext(xDisplay, visualIntPtr, new HandleRef(null, IntPtr.Zero), true);
this.sharedContextWidget = null;
primaryWidget.sharedContextWidget = this;
}
}
else
{
xRenderingContext = glXCreateContext(xDisplay, visualIntPtr, new HandleRef(null, IntPtr.Zero), true);
}
if (xRenderingContext == IntPtr.Zero)
{
throw new Exception("Unable to create rendering context");
}
renderingContextHandle = new HandleRef(this, xRenderingContext);
visual = (Gdk.Visual)GLib.Object.GetObject(gdk_x11_screen_lookup_visual(Screen.Handle, xVisualInfo.visualid));
if (visualIntPtr != IntPtr.Zero)
{
XFree(visualIntPtr);
}
break;
}
}
