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-rw-r--r--src/glut/glx/glut_init.c364
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 00000000000..b9d2fde3f34
--- /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 ([email protected]). */
+ _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 */
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