80 lines
3.1 KiB
Plaintext
Executable File
80 lines
3.1 KiB
Plaintext
Executable File
// Filename: wglGraphicsStateGuardian.I
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// Created by: drose (27Jan03)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////
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// Function: wglGraphicsStateGuardian::get_pfnum
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// Access: Public
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// Description: Returns the pixel format number chosen for windows
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// that use this context. In OpenGL under Microsoft
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// Windows, the window must be created first and then
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// the GL context is created from the window, and the
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// context inherits the pixel format of the window.
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// Therefore, all windows that share a particular
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// context must also share the same pixel format.
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////////////////////////////////////////////////////////////////////
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INLINE int wglGraphicsStateGuardian::
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get_pfnum() const {
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return _pfnum;
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}
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////////////////////////////////////////////////////////////////////
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// Function: wglGraphicsStateGuardian::made_context
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// Access: Public
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// Description: Returns true if the GSG has had a context made for it
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// already, false otherwise. If this returns false, the
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// next call to get_context() will quietly make a new
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// context.
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////////////////////////////////////////////////////////////////////
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INLINE bool wglGraphicsStateGuardian::
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made_context() const {
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return _made_context;
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}
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////////////////////////////////////////////////////////////////////
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// Function: wglGraphicsStateGuardian::get_context
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// Access: Public
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// Description: Returns the GL context associated with the GSG. If
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// the context has not yet been created, this creates a
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// suitable context for rendering to the indicated
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// window. This means that this method may only be
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// called from within the draw thread.
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////////////////////////////////////////////////////////////////////
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INLINE HGLRC wglGraphicsStateGuardian::
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get_context(HDC hdc) {
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if (!_made_context) {
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make_context(hdc);
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}
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return _context;
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}
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////////////////////////////////////////////////////////////////////
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// Function: wglGraphicsStateGuardian::get_twindow_dc
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// Access: Public
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// Description: Returns the DC associated with the temporary,
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// invisible window that was created with the gsg to
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// query WGL extensions.
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////////////////////////////////////////////////////////////////////
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INLINE HDC wglGraphicsStateGuardian::
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get_twindow_dc() {
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if (_twindow_dc == 0) {
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make_twindow();
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}
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return _twindow_dc;
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}
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