initial check-in (post crash)

1 files changed, 364 insertions, 0 deletions

diff --git a/src/glut/glx/glut_init.c b/src/glut/glx/glut_init.c
new file mode 100644
index 0000000000..b9d2fde3f3
--- /dev/null
+++ b/src/glut/glx/glut_init.c
@@ -0,0 +1,364 @@
+
+/* Copyright (c) Mark J. Kilgard, 1994, 1997. */
+
+/* This program is freely distributable without licensing fees
+   and is provided without guarantee or warrantee expressed or
+   implied. This program is -not- in the public domain. */
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#if !defined(_WIN32)
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+#endif
+
+/* SGI optimization introduced in IRIX 6.3 to avoid X server
+   round trips for interning common X atoms. */
+#if defined(_SGI_EXTRA_PREDEFINES) && !defined(NO_FAST_ATOMS)
+#include <X11/SGIFastAtom.h>
+#else
+#define XSGIFastInternAtom(dpy,string,fast_name,how) XInternAtom(dpy,string,how)
+#endif
+
+#include "glutint.h"
+
+/* GLUT inter-file variables */
+/* *INDENT-OFF* */
+char *__glutProgramName = NULL;
+int __glutArgc = 0;
+char **__glutArgv = NULL;
+char *__glutGeometry = NULL;
+Display *__glutDisplay = NULL;
+int __glutScreen;
+Window __glutRoot;
+int __glutScreenHeight;
+int __glutScreenWidth;
+GLboolean __glutIconic = GL_FALSE;
+GLboolean __glutDebug = GL_FALSE;
+unsigned int __glutDisplayMode =
+  GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH;
+char *__glutDisplayString = NULL;
+int __glutConnectionFD;
+XSizeHints __glutSizeHints = {0};
+int __glutInitWidth = 300, __glutInitHeight = 300;
+int __glutInitX = -1, __glutInitY = -1;
+GLboolean __glutForceDirect = GL_FALSE,
+  __glutTryDirect = GL_TRUE;
+Atom __glutWMDeleteWindow;
+/* *INDENT-ON* */
+
+#ifdef _WIN32
+void (__cdecl *__glutExitFunc)(int retval) = NULL;
+#endif
+
+static Bool synchronize = False;
+
+#if defined(_WIN32)
+
+#ifdef __BORLANDC__
+#include <float.h>  /* For masking floating point exceptions. */
+#endif
+
+void
+__glutOpenWin32Connection(char* display)
+{
+  static char *classname;
+  WNDCLASS  wc;
+  HINSTANCE hInstance = GetModuleHandle(NULL);
+  
+  /* Make sure we register the window only once. */
+  if(classname)
+    return;
+
+#ifdef __BORLANDC__
+  /* Under certain conditions (e.g. while rendering solid surfaces with
+     lighting enabled) Microsoft OpenGL libraries cause some illegal
+     operations like floating point overflow or division by zero. The
+     default behaviour of Microsoft compilers is to mask (ignore)
+     floating point exceptions, while Borland compilers do not.  The
+     following function of Borland RTL allows to mask exceptions.
+     Advice from Pier Giorgio Esposito (mc2172@mclink.it). */
+  _control87(MCW_EM,MCW_EM);
+#endif
+
+  classname = "GLUT";
+
+  /* Clear (important!) and then fill in the window class structure. */
+  memset(&wc, 0, sizeof(WNDCLASS));
+  wc.style         = CS_OWNDC;
+  wc.lpfnWndProc   = (WNDPROC)__glutWindowProc;
+  wc.hInstance     = hInstance;
+  wc.hIcon         = LoadIcon(hInstance, "GLUT_ICON");
+  wc.hCursor       = LoadCursor(hInstance, IDC_ARROW);
+  wc.hbrBackground = NULL;
+  wc.lpszMenuName  = NULL;
+  wc.lpszClassName = classname;
+
+  /* Fill in a default icon if one isn't specified as a resource. */
+  if(!wc.hIcon)
+    wc.hIcon = LoadIcon(NULL, IDI_WINLOGO);
+  
+  if(!RegisterClass(&wc)) {
+    __glutFatalError("RegisterClass() failed:"
+		     "Cannot register GLUT window class.");
+  }
+ 
+  __glutScreenWidth     = GetSystemMetrics(SM_CXSCREEN);
+  __glutScreenHeight    = GetSystemMetrics(SM_CYSCREEN);
+
+  /* Set the root window to NULL because windows creates a top-level
+     window when the parent is NULL.  X creates a top-level window
+     when the parent is the root window. */
+  __glutRoot            = NULL;
+
+  /* Set the display to 1 -- we shouldn't be using this anywhere
+     (except as an argument to X calls). */
+  __glutDisplay         = (Display*)1;
+
+  /* There isn't any concept of multiple screens in Win32, therefore,
+     we don't need to keep track of the screen we're on... it's always
+     the same one. */
+  __glutScreen          = 0;
+}
+#else /* !_WIN32 */
+void
+__glutOpenXConnection(char *display)
+{
+  int errorBase, eventBase;
+
+  __glutDisplay = XOpenDisplay(display);
+  if (!__glutDisplay)
+    __glutFatalError("could not open display: %s",
+      XDisplayName(display));
+  if (synchronize)
+    XSynchronize(__glutDisplay, True);
+  if (!glXQueryExtension(__glutDisplay, &errorBase, &eventBase))
+    __glutFatalError(
+      "OpenGL GLX extension not supported by display: %s",
+      XDisplayName(display));
+  __glutScreen = DefaultScreen(__glutDisplay);
+  __glutRoot = RootWindow(__glutDisplay, __glutScreen);
+  __glutScreenWidth = DisplayWidth(__glutDisplay, __glutScreen);
+  __glutScreenHeight = DisplayHeight(__glutDisplay,
+    __glutScreen);
+  __glutConnectionFD = ConnectionNumber(__glutDisplay);
+  __glutWMDeleteWindow = XSGIFastInternAtom(__glutDisplay,
+    "WM_DELETE_WINDOW", SGI_XA_WM_DELETE_WINDOW, False);
+}
+#endif /* _WIN32 */
+
+void
+__glutInitTime(struct timeval *beginning)
+{
+  static int beenhere = 0;
+  static struct timeval genesis;
+
+  if (!beenhere) {
+    GETTIMEOFDAY(&genesis);
+    beenhere = 1;
+  }
+  *beginning = genesis;
+}
+
+static void
+removeArgs(int *argcp, char **argv, int numToRemove)
+{
+  int i, j;
+
+  for (i = 0, j = numToRemove; argv[j]; i++, j++) {
+    argv[i] = argv[j];
+  }
+  argv[i] = NULL;
+  *argcp -= numToRemove;
+}
+
+void APIENTRY 
+glutInit(int *argcp, char **argv)
+{
+  char *display = NULL;
+  char *str, *geometry = NULL;
+  struct timeval unused;
+  int i;
+
+  if (__glutDisplay) {
+    __glutWarning("glutInit being called a second time.");
+    return;
+  }
+  /* Determine temporary program name. */
+  str = strrchr(argv[0], '/');
+  if (str == NULL) {
+    __glutProgramName = argv[0];
+  } else {
+    __glutProgramName = str + 1;
+  }
+
+  /* Make private copy of command line arguments. */
+  __glutArgc = *argcp;
+  __glutArgv = (char **) malloc(__glutArgc * sizeof(char *));
+  if (!__glutArgv)
+    __glutFatalError("out of memory.");
+  for (i = 0; i < __glutArgc; i++) {
+    __glutArgv[i] = __glutStrdup(argv[i]);
+    if (!__glutArgv[i])
+      __glutFatalError("out of memory.");
+  }
+
+  /* determine permanent program name */
+  str = strrchr(__glutArgv[0], '/');
+  if (str == NULL) {
+    __glutProgramName = __glutArgv[0];
+  } else {
+    __glutProgramName = str + 1;
+  }
+
+  /* parse arguments for standard options */
+  for (i = 1; i < __glutArgc; i++) {
+    if (!strcmp(__glutArgv[i], "-display")) {
+#if defined(_WIN32)
+      __glutWarning("-display option not supported by Win32 GLUT.");
+#endif
+      if (++i >= __glutArgc) {
+        __glutFatalError(
+          "follow -display option with X display name.");
+      }
+      display = __glutArgv[i];
+      removeArgs(argcp, &argv[1], 2);
+    } else if (!strcmp(__glutArgv[i], "-geometry")) {
+      if (++i >= __glutArgc) {
+        __glutFatalError(
+          "follow -geometry option with geometry parameter.");
+      }
+      geometry = __glutArgv[i];
+      removeArgs(argcp, &argv[1], 2);
+    } else if (!strcmp(__glutArgv[i], "-direct")) {
+#if defined(_WIN32)
+      __glutWarning("-direct option not supported by Win32 GLUT.");
+#endif
+      if (!__glutTryDirect)
+        __glutFatalError(
+          "cannot force both direct and indirect rendering.");
+      __glutForceDirect = GL_TRUE;
+      removeArgs(argcp, &argv[1], 1);
+    } else if (!strcmp(__glutArgv[i], "-indirect")) {
+#if defined(_WIN32)
+      __glutWarning("-indirect option not supported by Win32 GLUT.");
+#endif
+      if (__glutForceDirect)
+        __glutFatalError(
+          "cannot force both direct and indirect rendering.");
+      __glutTryDirect = GL_FALSE;
+      removeArgs(argcp, &argv[1], 1);
+    } else if (!strcmp(__glutArgv[i], "-iconic")) {
+      __glutIconic = GL_TRUE;
+      removeArgs(argcp, &argv[1], 1);
+    } else if (!strcmp(__glutArgv[i], "-gldebug")) {
+      __glutDebug = GL_TRUE;
+      removeArgs(argcp, &argv[1], 1);
+    } else if (!strcmp(__glutArgv[i], "-sync")) {
+#if defined(_WIN32)
+      __glutWarning("-sync option not supported by Win32 GLUT.");
+#endif
+      synchronize = GL_TRUE;
+      removeArgs(argcp, &argv[1], 1);
+    } else {
+      /* Once unknown option encountered, stop command line
+         processing. */
+      break;
+    }
+  }
+#if defined(_WIN32)
+  __glutOpenWin32Connection(display);
+#else
+  __glutOpenXConnection(display);
+#endif
+  if (geometry) {
+    int flags, x, y, width, height;
+
+    /* Fix bogus "{width|height} may be used before set"
+       warning */
+    width = 0;
+    height = 0;
+
+    flags = XParseGeometry(geometry, &x, &y,
+      (unsigned int *) &width, (unsigned int *) &height);
+    if (WidthValue & flags) {
+      /* Careful because X does not allow zero or negative
+         width windows */
+      if (width > 0)
+        __glutInitWidth = width;
+    }
+    if (HeightValue & flags) {
+      /* Careful because X does not allow zero or negative
+         height windows */
+      if (height > 0)
+        __glutInitHeight = height;
+    }
+    glutInitWindowSize(__glutInitWidth, __glutInitHeight);
+    if (XValue & flags) {
+      if (XNegative & flags)
+        x = DisplayWidth(__glutDisplay, __glutScreen) +
+          x - __glutSizeHints.width;
+      /* Play safe: reject negative X locations */
+      if (x >= 0)
+        __glutInitX = x;
+    }
+    if (YValue & flags) {
+      if (YNegative & flags)
+        y = DisplayHeight(__glutDisplay, __glutScreen) +
+          y - __glutSizeHints.height;
+      /* Play safe: reject negative Y locations */
+      if (y >= 0)
+        __glutInitY = y;
+    }
+    glutInitWindowPosition(__glutInitX, __glutInitY);
+  }
+  __glutInitTime(&unused);
+}
+
+#ifdef _WIN32
+void APIENTRY 
+__glutInitWithExit(int *argcp, char **argv, void (__cdecl *exitfunc)(int))
+{
+  __glutExitFunc = exitfunc;
+  glutInit(argcp, argv);
+}
+#endif
+
+/* CENTRY */
+void APIENTRY 
+glutInitWindowPosition(int x, int y)
+{
+  __glutInitX = x;
+  __glutInitY = y;
+  if (x >= 0 && y >= 0) {
+    __glutSizeHints.x = x;
+    __glutSizeHints.y = y;
+    __glutSizeHints.flags |= USPosition;
+  } else {
+    __glutSizeHints.flags &= ~USPosition;
+  }
+}
+
+void APIENTRY 
+glutInitWindowSize(int width, int height)
+{
+  __glutInitWidth = width;
+  __glutInitHeight = height;
+  if (width > 0 && height > 0) {
+    __glutSizeHints.width = width;
+    __glutSizeHints.height = height;
+    __glutSizeHints.flags |= USSize;
+  } else {
+    __glutSizeHints.flags &= ~USSize;
+  }
+}
+
+void APIENTRY 
+glutInitDisplayMode(unsigned int mask)
+{
+  __glutDisplayMode = mask;
+}
+
+/* ENDCENTRY */