create gsg first, then window

panda/src/display/frameBufferProperties.I

@@ -0,0 +1,208 @@
+// Filename: frameBufferProperties.I
+// Created by:  drose (27Jan03)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// panda3d@yahoogroups.com .
+//
+////////////////////////////////////////////////////////////////////
+
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::Copy Constructor
+//       Access: Published
+//  Description:
+////////////////////////////////////////////////////////////////////
+INLINE FrameBufferProperties::
+FrameBufferProperties(const FrameBufferProperties &copy) {
+  (*this) = copy;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::Destructor
+//       Access: Published
+//  Description:
+////////////////////////////////////////////////////////////////////
+INLINE FrameBufferProperties::
+~FrameBufferProperties() {
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::operator !=
+//       Access: Published
+//  Description:
+////////////////////////////////////////////////////////////////////
+INLINE bool FrameBufferProperties::
+operator != (const FrameBufferProperties &other) const {
+  return !operator == (other);
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::is_any_specified
+//       Access: Published
+//  Description: Returns true if any properties have been specified,
+//               false otherwise.
+////////////////////////////////////////////////////////////////////
+INLINE bool FrameBufferProperties::
+is_any_specified() const {
+  return (_specified != 0);
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::set_frame_buffer_mode
+//       Access: Published
+//  Description: Specifies the set of graphics properties that are
+//               required for the context associated with the window.
+//               This should be the union of the appropriate bits
+//               defined in FrameBufferMode.
+////////////////////////////////////////////////////////////////////
+INLINE void FrameBufferProperties::
+set_frame_buffer_mode(int frameBuffer_mode) {
+  _frame_buffer_mode = frameBuffer_mode;
+  _specified |= S_frame_buffer_mode;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::get_frame_buffer_mode
+//       Access: Published
+//  Description: Returns the set of graphics properties that are
+//               in effect for the window.  This will be the union of
+//               the corresponding bits from FrameBufferMode.
+////////////////////////////////////////////////////////////////////
+INLINE int FrameBufferProperties::
+get_frame_buffer_mode() const {
+  nassertr(has_frame_buffer_mode(), false);
+  return _frame_buffer_mode;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::has_frame_buffer_mode
+//       Access: Published
+//  Description: Returns true if the frameBuffer mode has been
+//               specified, false otherwise.
+////////////////////////////////////////////////////////////////////
+INLINE bool FrameBufferProperties::
+has_frame_buffer_mode() const {
+  return ((_specified & S_frame_buffer_mode) != 0);
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::clear_frame_buffer_mode
+//       Access: Published
+//  Description: Removes the frameBuffer_mode specification from the
+//               properties.
+////////////////////////////////////////////////////////////////////
+INLINE void FrameBufferProperties::
+clear_frame_buffer_mode() {
+  _specified &= ~S_frame_buffer_mode;
+  _frame_buffer_mode = 0;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::set_depth_bits
+//       Access: Published
+//  Description: Specifies the minimum number of bits that are
+//               required for the depth buffer.
+////////////////////////////////////////////////////////////////////
+INLINE void FrameBufferProperties::
+set_depth_bits(int depth_bits) {
+  _depth_bits = depth_bits;
+  _specified |= S_depth_bits;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::get_depth_bits
+//       Access: Published
+//  Description: Returns the number of bits specified for the depth
+//               buffer.
+////////////////////////////////////////////////////////////////////
+INLINE int FrameBufferProperties::
+get_depth_bits() const {
+  return _depth_bits;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::has_depth_bits
+//       Access: Published
+//  Description: Returns true if the number of bits for the depth
+//               buffer has been specified, false otherwise.
+////////////////////////////////////////////////////////////////////
+INLINE bool FrameBufferProperties::
+has_depth_bits() const {
+  return ((_specified & S_depth_bits) != 0);
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::clear_depth_bits
+//       Access: Published
+//  Description: Removes the depth_bits specification from the
+//               properties.
+////////////////////////////////////////////////////////////////////
+INLINE void FrameBufferProperties::
+clear_depth_bits() {
+  _specified &= ~S_depth_bits;
+  _depth_bits = 0;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::set_color_bits
+//       Access: Published
+//  Description: Specifies the minimum number of bits that are
+//               required for all three channels of the color buffer.
+//               That is, this is the per-channel color requirement
+//               times three.
+////////////////////////////////////////////////////////////////////
+INLINE void FrameBufferProperties::
+set_color_bits(int color_bits) {
+  _color_bits = color_bits;
+  _specified |= S_color_bits;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::get_color_bits
+//       Access: Published
+//  Description: Returns the number of bits specified for the color
+//               buffer.
+////////////////////////////////////////////////////////////////////
+INLINE int FrameBufferProperties::
+get_color_bits() const {
+  return _color_bits;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::has_color_bits
+//       Access: Published
+//  Description: Returns true if the number of bits for the color
+//               buffer has been specified, false otherwise.
+////////////////////////////////////////////////////////////////////
+INLINE bool FrameBufferProperties::
+has_color_bits() const {
+  return ((_specified & S_color_bits) != 0);
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::clear_color_bits
+//       Access: Published
+//  Description: Removes the color_bits specification from the
+//               properties.
+////////////////////////////////////////////////////////////////////
+INLINE void FrameBufferProperties::
+clear_color_bits() {
+  _specified &= ~S_color_bits;
+  _color_bits = 0;
+}
+
+INLINE ostream &
+operator << (ostream &out, const FrameBufferProperties &properties) {
+  properties.output(out);
+  return out;
+}

panda/src/display/frameBufferProperties.cxx

@@ -0,0 +1,151 @@
+// Filename: frameBufferProperties.cxx
+// Created by:  drose (27Jan03)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// panda3d@yahoogroups.com .
+//
+////////////////////////////////////////////////////////////////////
+
+#include "frameBufferProperties.h"
+
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::Constructor
+//       Access: Published
+//  Description:
+////////////////////////////////////////////////////////////////////
+FrameBufferProperties::
+FrameBufferProperties() {
+  clear();
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::Copy Assignment Operator
+//       Access: Published
+//  Description:
+////////////////////////////////////////////////////////////////////
+void FrameBufferProperties::
+operator = (const FrameBufferProperties &copy) {
+  _specified = copy._specified;
+  _flags = copy._flags;
+  _frame_buffer_mode = copy._frame_buffer_mode;
+  _depth_bits = copy._depth_bits;
+  _color_bits = copy._color_bits;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::operator == 
+//       Access: Published
+//  Description:
+////////////////////////////////////////////////////////////////////
+bool FrameBufferProperties::
+operator == (const FrameBufferProperties &other) const {
+  return (_specified == other._specified &&
+          _flags == other._flags &&
+          _frame_buffer_mode == other._frame_buffer_mode &&
+          _depth_bits == other._depth_bits &&
+          _color_bits == other._color_bits);
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::clear
+//       Access: Published
+//  Description: Unsets all properties that have been specified so
+//               far, and resets the FrameBufferProperties structure to its
+//               initial empty state.
+////////////////////////////////////////////////////////////////////
+void FrameBufferProperties::
+clear() {
+  _specified = 0;
+  _flags = 0;
+  _frame_buffer_mode = 0;
+  _depth_bits = 0;
+  _color_bits = 0;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::add_properties
+//       Access: Published
+//  Description: Sets any properties that are explicitly specified in
+//               other on this object.  Leaves other properties
+//               unchanged.
+////////////////////////////////////////////////////////////////////
+void FrameBufferProperties::
+add_properties(const FrameBufferProperties &other) {
+  if (other.has_frame_buffer_mode()) {
+    set_frame_buffer_mode(other.get_frame_buffer_mode());
+  }
+  if (other.has_depth_bits()) {
+    set_depth_bits(other.get_depth_bits());
+  }
+  if (other.has_color_bits()) {
+    set_color_bits(other.get_color_bits());
+  }
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: FrameBufferProperties::output
+//       Access: Published
+//  Description: Sets any properties that are explicitly specified in
+//               other on this object.  Leaves other properties
+//               unchanged.
+////////////////////////////////////////////////////////////////////
+void FrameBufferProperties::
+output(ostream &out) const {
+  if (has_frame_buffer_mode()) {
+    out << "frameBuffer_mode=";
+    int frameBuffer_mode = get_frame_buffer_mode();
+    if ((frameBuffer_mode & FM_index) != 0) {
+      out << "FM_index";
+    } else {
+      out << "FM_rgb";
+    }
+
+    if ((frameBuffer_mode & FM_triple_buffer) != 0) {
+      out << "|FM_triple_buffer";
+    } else if ((frameBuffer_mode & FM_double_buffer) != 0) {
+      out << "|FM_double_buffer";
+    } else {
+      out << "|FM_single_buffer";
+    }
+
+    if ((frameBuffer_mode & FM_accum) != 0) {
+      out << "|FM_accum";
+    }
+    if ((frameBuffer_mode & FM_alpha) != 0) {
+      out << "|FM_alpha";
+    }
+    if ((frameBuffer_mode & FM_depth) != 0) {
+      out << "|FM_depth";
+    }
+    if ((frameBuffer_mode & FM_stencil) != 0) {
+      out << "|FM_stencil";
+    }
+    if ((frameBuffer_mode & FM_multisample) != 0) {
+      out << "|FM_multisample";
+    }
+    if ((frameBuffer_mode & FM_stereo) != 0) {
+      out << "|FM_stereo";
+    }
+    if ((frameBuffer_mode & FM_luminance) != 0) {
+      out << "|FM_luminance";
+    }
+    out << " ";
+  }
+  if (has_depth_bits()) {
+    out << "depth_bits=" << get_depth_bits() << " ";
+  }
+  if (has_color_bits()) {
+    out << "color_bits=" << get_color_bits() << " ";
+  }
+}

panda/src/display/frameBufferProperties.h

@@ -0,0 +1,107 @@
+// Filename: frameBufferProperties.h
+// Created by:  drose (27Jan03)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// panda3d@yahoogroups.com .
+//
+////////////////////////////////////////////////////////////////////
+
+#ifndef FRAMEBUFFERPROPERTIES_H
+#define FRAMEBUFFERPROPERTIES_H
+
+#include "pandabase.h"
+
+////////////////////////////////////////////////////////////////////
+//       Class : FrameBufferProperties
+// Description : A container for the various kinds of properties we
+//               might ask to have on a graphics frameBuffer before we
+//               create a GSG.
+////////////////////////////////////////////////////////////////////
+class EXPCL_PANDA FrameBufferProperties {
+PUBLISHED:
+  FrameBufferProperties();
+  INLINE FrameBufferProperties(const FrameBufferProperties &copy);
+  void operator = (const FrameBufferProperties &copy);
+  INLINE ~FrameBufferProperties();
+
+  bool operator == (const FrameBufferProperties &other) const;
+  INLINE bool operator != (const FrameBufferProperties &other) const;
+
+  enum FrameBufferMode {
+    FM_rgba =          0x0000,
+    FM_rgb =           0x0000,
+    FM_index =         0x0001,
+    FM_single_buffer = 0x0000,
+    FM_double_buffer = 0x0002,
+    FM_triple_buffer = 0x0004,
+    FM_accum =         0x0008,
+    FM_alpha =         0x0010,
+    FM_depth =         0x0020,
+    FM_stencil =       0x0040,
+    FM_multisample =   0x0080,
+    FM_stereo =        0x0100,
+    FM_luminance =     0x0200,
+  };
+
+  void clear();
+  INLINE bool is_any_specified() const;
+
+  INLINE void set_frame_buffer_mode(int frameBuffer_mode);
+  INLINE int get_frame_buffer_mode() const;
+  INLINE bool has_frame_buffer_mode() const;
+  INLINE void clear_frame_buffer_mode();
+
+  INLINE void set_depth_bits(int depth_bits);
+  INLINE int get_depth_bits() const;
+  INLINE bool has_depth_bits() const;
+  INLINE void clear_depth_bits();
+
+  INLINE void set_color_bits(int color_bits);
+  INLINE int get_color_bits() const;
+  INLINE bool has_color_bits() const;
+  INLINE void clear_color_bits();
+
+  void add_properties(const FrameBufferProperties &other);
+
+  void output(ostream &out) const;
+  
+private:
+  // This bitmask indicates which of the parameters in the properties
+  // structure have been filled in by the user, and which remain
+  // unspecified.
+  enum Specified {
+    S_frame_buffer_mode = 0x0200,
+    S_depth_bits        = 0x0400,
+    S_color_bits        = 0x0800,
+  };
+
+  // This bitmask represents the true/false settings for various
+  // boolean flags (assuming the corresponding S_* bit has been set,
+  // above).
+  /*
+  enum Flags {
+  };
+  */
+
+  int _specified;
+  int _flags;
+  int _frame_buffer_mode;
+  int _depth_bits;
+  int _color_bits;
+};
+
+INLINE ostream &operator << (ostream &out, const FrameBufferProperties &properties);
+
+#include "frameBufferProperties.I"
+
+#endif

panda/src/display/graphicsThreadingModel.I

@@ -0,0 +1,119 @@
+// Filename: graphicsThreadingModel.I
+// Created by:  drose (27Jan03)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// panda3d@yahoogroups.com .
+//
+////////////////////////////////////////////////////////////////////
+
+
+////////////////////////////////////////////////////////////////////
+//     Function: GraphicsThreadingModel::Copy Constructor
+//       Access: Published
+//  Description: 
+////////////////////////////////////////////////////////////////////
+INLINE GraphicsThreadingModel::
+GraphicsThreadingModel(const GraphicsThreadingModel &copy) :
+  _cull_name(copy._cull_name),
+  _draw_name(copy._draw_name),
+  _cull_sorting(copy._cull_sorting)
+{
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: GraphicsThreadingModel::Copy Assignment Operator
+//       Access: Published
+//  Description: 
+////////////////////////////////////////////////////////////////////
+INLINE void GraphicsThreadingModel::
+operator = (const GraphicsThreadingModel &copy) {
+  _cull_name = copy._cull_name;
+  _draw_name = copy._draw_name;
+  _cull_sorting = copy._cull_sorting;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: GraphicsThreadingModel::get_cull_name
+//       Access: Published
+//  Description: Returns the name of the thread that will handle
+//               culling in this model.
+////////////////////////////////////////////////////////////////////
+INLINE const string &GraphicsThreadingModel::
+get_cull_name() const {
+  return _cull_name;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: GraphicsThreadingModel::get_draw_name
+//       Access: Published
+//  Description: Returns the name of the thread that will handle
+//               sending the actual graphics primitives to the
+//               graphics API in this model.
+////////////////////////////////////////////////////////////////////
+INLINE const string &GraphicsThreadingModel::
+get_draw_name() const {
+  return _draw_name;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: GraphicsThreadingModel::get_cull_sorting
+//       Access: Published
+//  Description: Returns true if the model involves a separate cull
+//               pass, or false if culling happens implicitly, at the
+//               same time as draw.
+////////////////////////////////////////////////////////////////////
+INLINE bool GraphicsThreadingModel::
+get_cull_sorting() const {
+  return _cull_sorting;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: GraphicsThreadingModel::is_single_threaded
+//       Access: Published
+//  Description: Returns true if the threading model is a
+//               single-threaded model, or false if it involves
+//               threads.
+////////////////////////////////////////////////////////////////////
+INLINE bool GraphicsThreadingModel::
+is_single_threaded() const {
+  return _cull_name.empty() && _draw_name.empty();
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: GraphicsThreadingModel::is_default
+//       Access: Published
+//  Description: Returns true if the threading model is the default,
+//               cull-then-draw single-threaded model, or false
+//               otherwise.
+////////////////////////////////////////////////////////////////////
+INLINE bool GraphicsThreadingModel::
+is_default() const {
+  return is_single_threaded() && _cull_sorting;
+}
+
+
+////////////////////////////////////////////////////////////////////
+//     Function: GraphicsThreadingModel::output
+//       Access: Published
+//  Description: 
+////////////////////////////////////////////////////////////////////
+INLINE void GraphicsThreadingModel::
+output(ostream &out) const {
+  out << get_model();
+}
+
+INLINE ostream &
+operator << (ostream &out, const GraphicsThreadingModel &threading_model) {
+  threading_model.output(out);
+  return out;
+}

panda/src/display/graphicsThreadingModel.cxx

@@ -0,0 +1,86 @@
+// Filename: graphicsThreadingModel.cxx
+// Created by:  drose (27Jan03)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// panda3d@yahoogroups.com .
+//
+////////////////////////////////////////////////////////////////////
+
+#include "graphicsThreadingModel.h"
+
+////////////////////////////////////////////////////////////////////
+//     Function: GraphicsThreadingModel::Constructor
+//       Access: Published
+//  Description: The threading model accepts a string representing the
+//               names of the two threads that will process cull and
+//               draw for the given window, separated by a slash.  The
+//               names are completely arbitrary and are used only to
+//               differentiate threads.  The two names may be the
+//               same, meaning the same thread, or each may be the
+//               empty string, which represents the previous thread.
+//
+//               Thus, for example, "cull/draw" indicates that the
+//               window will be culled in a thread called "cull", and
+//               drawn in a separate thread called "draw".
+//               "draw/draw" or simply "draw/" indicates the window
+//               will be culled and drawn in the same thread, "draw".
+//               On the other hand, "/draw" indicates the thread will
+//               be culled in the main, or app thread, and drawn in a
+//               separate thread named "draw".  The empty string, ""
+//               or "/", indicates the thread will be culled and drawn
+//               in the main thread; that is to say, a single-process
+//               model.
+//
+//               Finally, if the threading model begins with a "-"
+//               character, then cull and draw are run simultaneously,
+//               in the same thread, with no binning or state sorting.
+//               It simplifies the cull process but it forces the
+//               scene to render in scene graph order; state sorting
+//               and alpha sorting is lost.
+////////////////////////////////////////////////////////////////////
+GraphicsThreadingModel::
+GraphicsThreadingModel(const string &model) {
+  _cull_sorting = true;
+  size_t start = 0;
+  if (!model.empty() && model[0] == '-') {
+    start = 1;
+    _cull_sorting = false;
+  }
+
+  size_t slash = model.find('/', start);
+  if (slash == string::npos) {
+    _cull_name = model;
+  } else {
+    _cull_name = model.substr(start, slash - start);
+    _draw_name = model.substr(slash + 1);
+  }
+  if (!_cull_sorting || _draw_name.empty()) {
+    _draw_name = _cull_name;
+  }
+}
+  
+
+////////////////////////////////////////////////////////////////////
+//     Function: GraphicsThreadingModel::get_model
+//       Access: Published
+//  Description: Returns the string that describes the threading
+//               model.  See the constructor.
+////////////////////////////////////////////////////////////////////
+string GraphicsThreadingModel::
+get_model() const {
+  if (get_cull_sorting()) {
+    return get_cull_name() + "/" + get_draw_name();
+  } else {
+    return string("-") + get_cull_name();
+  }
+}

panda/src/display/graphicsThreadingModel.h

@@ -0,0 +1,54 @@
+// Filename: graphicsThreadingModel.h
+// Created by:  drose (27Jan03)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// panda3d@yahoogroups.com .
+//
+////////////////////////////////////////////////////////////////////
+
+#ifndef GRAPHICSTHREADINGMODEL_H
+#define GRAPHICSTHREADINGMODEL_H
+
+#include "pandabase.h"
+
+////////////////////////////////////////////////////////////////////
+//       Class : GraphicsThreadingModel
+// Description : This represents the user's specification of how a
+//               particular frame is handled by the various threads.
+////////////////////////////////////////////////////////////////////
+class EXPCL_PANDA GraphicsThreadingModel {
+PUBLISHED:
+  GraphicsThreadingModel(const string &model = string());
+  INLINE GraphicsThreadingModel(const GraphicsThreadingModel &copy);
+  INLINE void operator = (const GraphicsThreadingModel &copy);
+  
+  string get_model() const;
+  INLINE const string &get_cull_name() const;
+  INLINE const string &get_draw_name() const;
+  INLINE bool get_cull_sorting() const;
+ 
+  INLINE bool is_single_threaded() const;
+  INLINE bool is_default() const;
+  INLINE void output(ostream &out) const;
+
+private:
+  string _cull_name;
+  string _draw_name;
+  bool _cull_sorting;
+};
+
+INLINE ostream &operator << (ostream &out, const GraphicsThreadingModel &threading_model);
+
+#include "graphicsThreadingModel.I"
+
+#endif

panda/src/glxdisplay/glxGraphicsStateGuardian.I

@@ -0,0 +1,17 @@
+// Filename: glxGraphicsStateGuardian.I
+// Created by:  drose (27Jan03)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// panda3d@yahoogroups.com .
+//
+////////////////////////////////////////////////////////////////////

panda/src/glxdisplay/glxGraphicsStateGuardian.cxx

@@ -0,0 +1,54 @@
+// Filename: glxGraphicsStateGuardian.cxx
+// Created by:  drose (27Jan03)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// panda3d@yahoogroups.com .
+//
+////////////////////////////////////////////////////////////////////
+
+#include "glxGraphicsStateGuardian.h"
+
+
+TypeHandle glxGraphicsStateGuardian::_type_handle;
+
+////////////////////////////////////////////////////////////////////
+//     Function: glxGraphicsStateGuardian::Constructor
+//       Access: Public
+//  Description:
+////////////////////////////////////////////////////////////////////
+glxGraphicsStateGuardian::
+glxGraphicsStateGuardian(const FrameBufferProperties &properties) : 
+  GLGraphicsStateGuardian(properties)
+{
+  _context = (GLXContext)NULL;
+  _visual = (XVisualInfo *)NULL;
+  _display = NULL;
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: glxGraphicsStateGuardian::Destructor
+//       Access: Public
+//  Description:
+////////////////////////////////////////////////////////////////////
+glxGraphicsStateGuardian::
+~glxGraphicsStateGuardian() {
+  if (_visual != (XVisualInfo *)NULL) {
+    XFree(_visual);
+    _visual = (XVisualInfo *)NULL;
+  }
+
+  if (_context != (GLXContext)NULL) {
+    glXDestroyContext(_display, _context);
+    _context = (GLXContext)NULL;
+  }
+}

panda/src/glxdisplay/glxGraphicsStateGuardian.h

@@ -0,0 +1,63 @@
+// Filename: glxGraphicsStateGuardian.h
+// Created by:  drose (27Jan03)
+//
+////////////////////////////////////////////////////////////////////
+//
+// PANDA 3D SOFTWARE
+// Copyright (c) 2001, Disney Enterprises, Inc.  All rights reserved
+//
+// All use of this software is subject to the terms of the Panda 3d
+// Software license.  You should have received a copy of this license
+// along with this source code; you will also find a current copy of
+// the license at http://www.panda3d.org/license.txt .
+//
+// To contact the maintainers of this program write to
+// panda3d@yahoogroups.com .
+//
+////////////////////////////////////////////////////////////////////
+
+#ifndef GLXGRAPHICSSTATEGUARDIAN_H
+#define GLXGRAPHICSSTATEGUARDIAN_H
+
+#include "pandabase.h"
+
+#include "glGraphicsStateGuardian.h"
+
+#include <X11/Xlib.h>
+#include <GL/glx.h>
+
+////////////////////////////////////////////////////////////////////
+//       Class : glxGraphicsStateGuardian
+// Description : A tiny specialization on GLGraphicsStateGuardian to
+//               add some glx-specific information.
+////////////////////////////////////////////////////////////////////
+class glxGraphicsStateGuardian : public GLGraphicsStateGuardian {
+public:
+  glxGraphicsStateGuardian(const FrameBufferProperties &properties);
+  virtual ~glxGraphicsStateGuardian();
+
+  GLXContext _context;
+  XVisualInfo *_visual;
+  Display *_display;
+
+public:
+  static TypeHandle get_class_type() {
+    return _type_handle;
+  }
+  static void init_type() {
+    GLGraphicsStateGuardian::init_type();
+    register_type(_type_handle, "glxGraphicsStateGuardian",
+                  GLGraphicsStateGuardian::get_class_type());
+  }
+  virtual TypeHandle get_type() const {
+    return get_class_type();
+  }
+  virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
+
+private:
+  static TypeHandle _type_handle;
+};
+
+#include "glxGraphicsStateGuardian.I"
+
+#endif