/* CENTRY */
int GLUTAPIENTRY
glutGet(GLenum param)
{
Window win, root;
int x, y, value;
unsigned int width, height, border, depth;
switch (param) {
case GLUT_INIT_WINDOW_X:
return __glutInitX;
case GLUT_INIT_WINDOW_Y:
return __glutInitY;
case GLUT_INIT_WINDOW_WIDTH:
return __glutInitWidth;
case GLUT_INIT_WINDOW_HEIGHT:
return __glutInitHeight;
case GLUT_INIT_DISPLAY_MODE:
return __glutDisplayMode;
case GLUT_WINDOW_X:
XTranslateCoordinates(__glutDisplay, __glutCurrentWindow->win,
__glutRoot, 0, 0, &x, &y, &win);
return x;
case GLUT_WINDOW_Y:
XTranslateCoordinates(__glutDisplay, __glutCurrentWindow->win,
__glutRoot, 0, 0, &x, &y, &win);
return y;
case GLUT_WINDOW_WIDTH:
if (!__glutCurrentWindow->reshape) {
XGetGeometry(__glutDisplay, __glutCurrentWindow->win,
&root, &x, &y,
&width, &height, &border, &depth);
return width;
}
return __glutCurrentWindow->width;
case GLUT_WINDOW_HEIGHT:
if (!__glutCurrentWindow->reshape) {
XGetGeometry(__glutDisplay, __glutCurrentWindow->win,
&root, &x, &y,
&width, &height, &border, &depth);
return height;
}
return __glutCurrentWindow->height;
#ifdef __OS2__
#define GET_CONFIG(attrib) \
{ if (__glutCurrentWindow->renderWin == __glutCurrentWindow->win) \
glXGetConfig( __glutCurrentWindow->vis, attrib, &value); \
else \
glXGetConfig(__glutCurrentWindow->overlay->vis, attrib, &value); \
} \
#else
#define GET_CONFIG(attrib) { \
if (__glutCurrentWindow->renderWin == __glutCurrentWindow->win) { \
glXGetConfig(__glutDisplay, __glutCurrentWindow->vis, \
attrib, &value); \
} else { \
glXGetConfig(__glutDisplay, __glutCurrentWindow->overlay->vis, \
attrib, &value); \
} \
}
#endif
case GLUT_WINDOW_BUFFER_SIZE:
GET_CONFIG(GLX_BUFFER_SIZE);
return value;
case GLUT_WINDOW_STENCIL_SIZE:
GET_CONFIG(GLX_STENCIL_SIZE);
return value;
case GLUT_WINDOW_DEPTH_SIZE:
GET_CONFIG(GLX_DEPTH_SIZE);
return value;
case GLUT_WINDOW_RED_SIZE:
GET_CONFIG(GLX_RED_SIZE);
return value;
case GLUT_WINDOW_GREEN_SIZE:
GET_CONFIG(GLX_GREEN_SIZE);
return value;
case GLUT_WINDOW_BLUE_SIZE:
GET_CONFIG(GLX_BLUE_SIZE);
return value;
case GLUT_WINDOW_ALPHA_SIZE:
GET_CONFIG(GLX_ALPHA_SIZE);
return value;
case GLUT_WINDOW_ACCUM_RED_SIZE:
GET_CONFIG(GLX_ACCUM_RED_SIZE);
return value;
case GLUT_WINDOW_ACCUM_GREEN_SIZE:
GET_CONFIG(GLX_ACCUM_GREEN_SIZE);
return value;
case GLUT_WINDOW_ACCUM_BLUE_SIZE:
GET_CONFIG(GLX_ACCUM_BLUE_SIZE);
return value;
case GLUT_WINDOW_ACCUM_ALPHA_SIZE:
GET_CONFIG(GLX_ACCUM_ALPHA_SIZE);
return value;
case GLUT_WINDOW_DOUBLEBUFFER:
GET_CONFIG(GLX_DOUBLEBUFFER);
return value;
case GLUT_WINDOW_RGBA:
GET_CONFIG(GLX_RGBA);
return value;
case GLUT_WINDOW_COLORMAP_SIZE:
GET_CONFIG(GLX_RGBA);
if (value) {
return 0;
} else {
#if defined(_WIN32) || defined(__OS2__)
/* KLUDGE: we always assume 256 colors in CI mode on
Win32 */
return 256;
#else
if (__glutCurrentWindow->renderWin == __glutCurrentWindow->win) {
return __glutCurrentWindow->vis->visual->map_entries;
} else {
return __glutCurrentWindow->overlay->vis->visual->map_entries;
}
#endif /* _WIN32 */
}
case GLUT_WINDOW_PARENT:
return __glutCurrentWindow->parent ?
__glutCurrentWindow->parent->num + 1 : 0;
case GLUT_WINDOW_NUM_CHILDREN:
{
int num = 0;
GLUTwindow *children = __glutCurrentWindow->children;
while (children) {
num++;
children = children->siblings;
}
return num;
}
case GLUT_WINDOW_NUM_SAMPLES:
#if defined(GLX_VERSION_1_1) && defined(GLX_SGIS_multisample)
if (__glutIsSupportedByGLX("GLX_SGIS_multisample")) {
GET_CONFIG(GLX_SAMPLES_SGIS);
return value;
} else {
return 0;
}
#else
/* Independent of GLX server support, multisampling not
supported by GLX client-side. */
return 0;
#endif
case GLUT_WINDOW_STEREO:
GET_CONFIG(GLX_STEREO);
return value;
case GLUT_WINDOW_CURSOR:
return __glutCurrentWindow->cursor;
case GLUT_SCREEN_WIDTH:
return DisplayWidth(__glutDisplay, __glutScreen);
case GLUT_SCREEN_HEIGHT:
return DisplayHeight(__glutDisplay, __glutScreen);
case GLUT_SCREEN_WIDTH_MM:
return DisplayWidthMM(__glutDisplay, __glutScreen);
case GLUT_SCREEN_HEIGHT_MM:
return DisplayHeightMM(__glutDisplay, __glutScreen);
case GLUT_MENU_NUM_ITEMS:
return __glutCurrentMenu->num;
case GLUT_DISPLAY_MODE_POSSIBLE:
{
XVisualInfo *vi;
Bool dummy, visAlloced;
void *fbc;
#if defined(_WIN32)
/* Our fake glXChooseVisual (which is called by
__glutDetermineVisual) needs an HDC to work with, so grab one
from the "root" window. */
XHDC = GetDC(GetDesktopWindow());
#endif
vi = __glutDetermineWindowVisual(&dummy, &visAlloced, &fbc);
#if defined(_WIN32)
ReleaseDC(GetDesktopWindow(), XHDC);
#endif
if (vi) {
if (visAlloced)
XFree(vi);
return 1;
}
return 0;
}
case GLUT_ELAPSED_TIME:
{
#ifdef OLD_VMS
struct timeval6 elapsed, beginning, now;
#else
struct timeval elapsed, beginning, now;
#endif
__glutInitTime(&beginning);
GETTIMEOFDAY(&now);
TIMEDELTA(elapsed, now, beginning);
/* Return elapsed milliseconds. */
#if defined(__vms) && ( __VMS_VER < 70000000 )
return (int) (elapsed.val / TICKS_PER_MILLISECOND);
#else
return (int) ((elapsed.tv_sec * 1000) + (elapsed.tv_usec / 1000));
#endif
}
case GLUT_WINDOW_FORMAT_ID:
#if defined(__OS2__)
return wglGetPixelFormat(__glutCurrentWindow->hdc);
#elif defined(_WIN32)
return GetPixelFormat(__glutCurrentWindow->hdc);
#else
if (__glutCurrentWindow->renderWin == __glutCurrentWindow->win) {
return (int) __glutCurrentWindow->vis->visualid;
} else {
return (int) __glutCurrentWindow->overlay->vis->visualid;
}
#endif
default:
__glutWarning("invalid glutGet parameter: %d", param);
return -1;
}
}
void GLUTAPIENTRY
glutInit(int *argcp, char **argv)
{
char *display = NULL;
char *str, *geometry = NULL;
#ifdef OLD_VMS
struct timeval6 unused;
#else
struct timeval unused;
#endif
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(__OS2__)
__glutOpenOS2Connection(display);
#elif 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);
/* check if GLUT_FPS env var is set */
{
const char *fps = getenv("GLUT_FPS");
if (fps) {
sscanf(fps, "%d", &__glutFPS);
if (__glutFPS <= 0)
__glutFPS = 5000; /* 5000 milliseconds */
}
}
}
