initial check-in

1 files changed, 238 insertions, 0 deletions

diff --git a/src/glut/beos/glutInit.cpp b/src/glut/beos/glutInit.cpp
new file mode 100644
index 0000000000..9aa0f4787d
--- /dev/null
+++ b/src/glut/beos/glutInit.cpp
@@ -0,0 +1,238 @@
+/***********************************************************
+ *	Copyright (C) 1997, Be Inc.  All rights reserved.
+ *
+ *  FILE:	glutInit.cpp
+ *
+ *	DESCRIPTION:	initialize GLUT state
+ ***********************************************************/
+
+/***********************************************************
+ *	Headers
+ ***********************************************************/
+#include <GL/glut.h>
+#include <string.h>
+#include <stdlib.h>
+#include "glutint.h"
+#include "glutState.h"
+#include "beos_x11.h"
+
+/***********************************************************
+ *	Global variables
+ ***********************************************************/
+GlutState gState;
+
+/***********************************************************
+ *	Private variables
+ ***********************************************************/
+static int __glutArgc;
+static char **__glutArgv;
+
+/***********************************************************
+ *	FUNCTION:	__glutInitTime
+ *
+ *	DESCRIPTION:  set up start time variable
+ ***********************************************************/
+void __glutInitTime(bigtime_t *beginning)
+{
+  static int beenhere = 0;
+  static bigtime_t genesis;
+
+  if (!beenhere) {
+    genesis = system_time();
+    beenhere = 1;
+  }
+  *beginning = genesis;
+}
+
+/***********************************************************
+ *	FUNCTION:	removeArgs
+ *
+ *	DESCRIPTION:  helper function for glutInit to remove args
+ *		from argv variable passed in
+ ***********************************************************/
+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;
+}
+
+/***********************************************************
+ *	FUNCTION:	bAppThread
+ *
+ *	DESCRIPTION:  starts the BApplication message loop running
+ ***********************************************************/
+static int32 bAppThread(void *arg) {
+	be_app->Lock();
+	return be_app->Run();
+}
+
+/***********************************************************
+ *	FUNCTION:	glutInit (2.1)
+ *
+ *	DESCRIPTION:  create BApplication, parse cmd-line arguments,
+ *		and set up gState structure.
+ ***********************************************************/
+void glutInit(int *argcp, char **argv) {
+  char *str, *geometry = NULL;
+  int i;
+
+  if (gState.display) {
+    __glutWarning("glutInit being called a second time.");
+    return;
+  }
+  /* Determine temporary program name. */
+  str = strrchr(argv[0], '/');
+  if (str == NULL) {
+    gState.programName = argv[0];
+  } else {
+    gState.programName = 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] = strdup(argv[i]);
+    if (!__glutArgv[i])
+      __glutFatalError("out of memory.");
+  }
+
+  /* determine permanent program name */
+  str = strrchr(__glutArgv[0], '/');
+  if (str == NULL) {
+    gState.programName = __glutArgv[0];
+  } else {
+    gState.programName = str + 1;
+  }
+
+  /* parse arguments for standard options */
+  for (i = 1; i < __glutArgc; i++) {
+    if (!strcmp(__glutArgv[i], "-display")) {
+      __glutWarning("-display option only valid for X glut.");
+      if (++i >= __glutArgc) {
+        __glutFatalError(
+          "follow -display option with X display name.");
+      }
+      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")) {
+      __glutWarning("-direct option only valid for X glut.");
+      removeArgs(argcp, &argv[1], 1);
+    } else if (!strcmp(__glutArgv[i], "-indirect")) {
+      __glutWarning("-indirect option only valid for X glut.");
+      removeArgs(argcp, &argv[1], 1);
+    } else if (!strcmp(__glutArgv[i], "-iconic")) {
+      __glutWarning("-iconic option doesn't make sense in BeOS.");
+      removeArgs(argcp, &argv[1], 1);
+    } else if (!strcmp(__glutArgv[i], "-gldebug")) {
+      gState.debug = true;
+      removeArgs(argcp, &argv[1], 1);
+    } else if (!strcmp(__glutArgv[i], "-sync")) {
+      __glutWarning("-sync option only valid for X glut.");
+      removeArgs(argcp, &argv[1], 1);
+    } else {
+      /* Once unknown option encountered, stop command line
+         processing. */
+      break;
+    }
+  }
+  
+  __glutInit();  /* Create BApplication first so DisplayWidth() works */
+  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)
+        gState.initWidth = width;
+    }
+    if (HeightValue & flags) {
+      /* Careful because X does not allow zero or negative
+         height windows */
+      if (height > 0)
+        gState.initHeight = height;
+    }
+    if (XValue & flags) {
+      if (XNegative & flags)
+        x = DisplayWidth() + x - gState.initWidth;
+      /* Play safe: reject negative X locations */
+      if (x >= 0)
+        gState.initX = x;
+    }
+    if (YValue & flags) {
+      if (YNegative & flags)
+        y = DisplayHeight() + y - gState.initHeight;
+      /* Play safe: reject negative Y locations */
+      if (y >= 0)
+        gState.initY = y;
+    }
+  }
+}
+
+/***********************************************************
+ *	FUNCTION:	__glutInit
+ *
+ *	DESCRIPTION:  create BApplication, parse cmd-line arguments,
+ *		and set up gState structure.
+ ***********************************************************/
+void __glutInit() {
+  // open BApplication
+  gState.display = new BApplication("application/x-glut-demo");
+  be_app->Unlock();
+  thread_id appthread = spawn_thread(bAppThread, "BApplication", B_NORMAL_PRIORITY, 0);
+  resume_thread(appthread);
+
+  bigtime_t unused;
+  __glutInitTime(&unused);
+}
+
+/***********************************************************
+ *	FUNCTION:	glutInitWindowPosition (2.2)
+ *
+ *	DESCRIPTION:  set initial window position
+ ***********************************************************/
+void glutInitWindowPosition(int x, int y) {
+	gState.initX = x;
+	gState.initY = y;
+}
+
+/***********************************************************
+ *	FUNCTION:	glutInitWindowSize (2.2)
+ *
+ *	DESCRIPTION:  set initial window size
+ ***********************************************************/
+void glutInitWindowSize(int width, int height) {
+	gState.initWidth = width;
+	gState.initHeight = height;
+}
+
+/***********************************************************
+ *	FUNCTION:	glutInitDisplayMode (2.3)
+ *
+ *	DESCRIPTION:  set initial display mode
+ ***********************************************************/
+void glutInitDisplayMode(unsigned int mode) {
+	gState.displayMode = mode;
+}