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authorBrian Paul <brian.paul@tungstengraphics.com>1999-09-16 22:45:24 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>1999-09-16 22:45:24 +0000
commit4811b7c7e02c0612975a8526f8ebba49ece0e72b (patch)
treed039cf9b6dd2a9d4fb47b856f1f89adec4ff81f8 /src/glut/beos/glutInit.cpp
parentb9e8741c8f0e5d683df4be09a232aa722589645e (diff)
initial check-in
Diffstat (limited to 'src/glut/beos/glutInit.cpp')
-rw-r--r--src/glut/beos/glutInit.cpp238
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
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+++ b/src/glut/beos/glutInit.cpp
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+/***********************************************************
+ * 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;
+}