panda3d/panda/src/glxdisplay/config_glxdisplay.cxx
2018-06-12 16:15:45 -06:00

102 lines
3.4 KiB
C++

/**
* PANDA 3D SOFTWARE
* Copyright (c) Carnegie Mellon University. All rights reserved.
*
* All use of this software is subject to the terms of the revised BSD
* license. You should have received a copy of this license along
* with this source code in a file named "LICENSE."
*
* @file config_glxdisplay.cxx
* @author cary
* @date 1999-10-07
*/
#include "config_glxdisplay.h"
#include "glxGraphicsBuffer.h"
#include "glxGraphicsPipe.h"
#include "glxGraphicsPixmap.h"
#include "glxGraphicsBuffer.h"
#include "glxGraphicsWindow.h"
#include "glxGraphicsStateGuardian.h"
#include "posixGraphicsStateGuardian.h"
#include "graphicsPipeSelection.h"
#include "dconfig.h"
#include "pandaSystem.h"
#if !defined(CPPPARSER) && !defined(BUILDING_PANDA_GLXDISPLAY)
#error Buildsystem error: BUILDING_PANDA_GLXDISPLAY not defined
#endif
Configure(config_glxdisplay);
NotifyCategoryDef(glxdisplay, "display");
ConfigureFn(config_glxdisplay) {
init_libglxdisplay();
}
ConfigVariableBool glx_get_proc_address
("glx-get-proc-address", true,
PRC_DESC("Set this to true to allow the use of glxGetProcAddress(), if "
"it is available, to query the OpenGL extension functions. This "
"is the standard way to query extension functions."));
ConfigVariableBool glx_get_os_address
("glx-get-os-address", true,
PRC_DESC("Set this to true to allow Panda to query the OpenGL library "
"directly using standard operating system calls to locate "
"addresses of extension functions. This will be done only "
"if glxGetProcAddress() cannot be used for some reason."));
ConfigVariableBool glx_support_fbconfig
("glx-support-fbconfig", true,
PRC_DESC("Set this true to enable the use of the advanced FBConfig "
"interface (as opposed to the older XVisual interface) "
"if it is available, to select a graphics visual and "
"create an OpenGL context."));
ConfigVariableBool glx_support_pbuffer
("glx-support-pbuffer", true,
PRC_DESC("Set this true to enable the use of X pbuffer-based offscreen "
"buffers, if available. This is usually preferred over "
"pixmap-based buffers, but not all drivers support them."));
ConfigVariableBool glx_support_pixmap
("glx-support-pixmap", false,
PRC_DESC("Set this true to enable the use of X pixmap-based offscreen "
"buffers. This is false by default because pixmap-based buffers "
"are usually slower than pbuffer-based buffers."));
/**
* Initializes the library. This must be called at least once before any of
* the functions or classes in this library can be used. Normally it will be
* called by the static initializers and need not be called explicitly, but
* special cases exist.
*/
void
init_libglxdisplay() {
static bool initialized = false;
if (initialized) {
return;
}
initialized = true;
#ifdef HAVE_GLXFBCONFIG
glxGraphicsBuffer::init_type();
#endif // HAVE_GLXFBCONFIG
glxGraphicsPipe::init_type();
glxGraphicsPixmap::init_type();
glxGraphicsBuffer::init_type();
glxGraphicsWindow::init_type();
glxGraphicsStateGuardian::init_type();
PosixGraphicsStateGuardian::init_type();
GraphicsPipeSelection *selection = GraphicsPipeSelection::get_global_ptr();
selection->add_pipe_type(glxGraphicsPipe::get_class_type(),
glxGraphicsPipe::pipe_constructor);
PandaSystem *ps = PandaSystem::get_global_ptr();
ps->set_system_tag("OpenGL", "window_system", "GLX");
}