diff options
Diffstat (limited to 'src/glut/beos/glutInit.cpp')
| -rw-r--r-- | src/glut/beos/glutInit.cpp | 238 |
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; +} |