Modules/cstubs

/***********************************************************
Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
The Netherlands.

                        All Rights Reserved

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
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CNRI not be used in advertising or publicity pertaining to
distribution of the software without specific, written prior
permission.

While CWI is the initial source for this software, a modified version
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REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
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/*
Input used to generate the Python module "glmodule.c".
The stub generator is a Python script called "cgen.py".

Each definition must be contained on one line:

<returntype> <name> <type> <arg> <type> <arg>

<returntype> can be: void, short, long (XXX maybe others?)

<type> can be: char, string, short, float, long, or double
	string indicates a null terminated string;
	if <type> is char and <arg> begins with a *, the * is stripped
	and <type> is changed into string

<arg> has the form <mode> or <mode>[<subscript>]
	where <mode> can be
		s: arg is sent
		r: arg is received		(arg is a pointer)
	and <subscript> can be (N and I are numbers):
		N
		argI
		retval
		N*argI
		N*I
		N*retval
	In the case where the subscript consists of two parts
	separated by *, the first part is the width of the matrix, and
	the second part is the length of the matrix.  This order is
	opposite from the order used in C to declare a two-dimensional
	matrix.
*/

/*
 * An attempt has been made to make this module switch threads on qread
 * calls. It is far from safe, though.
 */

#include <gl.h>
#include <device.h>

#ifdef __sgi
extern int devport();
extern int textwritemask();
extern int pagewritemask();
extern int gewrite();
extern int gettp();
#endif

#include "Python.h"
#include "cgensupport.h"

/*
Some stubs are too complicated for the stub generator.
We can include manually written versions of them here.
A line starting with '%' gives the name of the function so the stub
generator can include it in the table of functions.
*/

% qread

static PyObject *
gl_qread(self, args)
	PyObject *self;
	PyObject *args;
{
	long retval;
	short arg1 ;
	Py_BEGIN_ALLOW_THREADS
	retval = qread( & arg1 );
	Py_END_ALLOW_THREADS
	{ PyObject *v = PyTuple_New( 2 );
	  if (v == NULL) return NULL;
	  PyTuple_SetItem(v, 0, mknewlongobject(retval));
	  PyTuple_SetItem(v, 1, mknewshortobject(arg1));
	  return v;
	}
}


/*
varray -- an array of v.. calls.
The argument is an array (maybe list or tuple) of points.
Each point must be a tuple or list of coordinates (x, y, z).
The points may be 2- or 3-dimensional but must all have the
same dimension.  Float and int values may be mixed however.
The points are always converted to 3D double precision points
by assuming z=0.0 if necessary (as indicated in the man page),
and for each point v3d() is called.
*/

% varray

static PyObject *
gl_varray(self, args)
	PyObject *self;
	PyObject *args;
{
	PyObject *v, *w=NULL;
	int i, n, width;
	double vec[3];
	PyObject * (*getitem) Py_FPROTO((PyObject *, int));
	
	if (!PyArg_GetObject(args, 1, 0, &v))
		return NULL;
	
	if (PyList_Check(v)) {
		n = PyList_Size(v);
		getitem = PyList_GetItem;
	}
	else if (PyTuple_Check(v)) {
		n = PyTuple_Size(v);
		getitem = PyTuple_GetItem;
	}
	else {
		PyErr_BadArgument();
		return NULL;
	}
	
	if (n == 0) {
		Py_INCREF(Py_None);
		return Py_None;
	}
	if (n > 0)
		w = (*getitem)(v, 0);
	
	width = 0;
	if (w == NULL) {
	}
	else if (PyList_Check(w)) {
		width = PyList_Size(w);
	}
	else if (PyTuple_Check(w)) {
		width = PyTuple_Size(w);
	}
	
	switch (width) {
	case 2:
		vec[2] = 0.0;
		/* Fall through */
	case 3:
		break;
	default:
		PyErr_BadArgument();
		return NULL;
	}
	
	for (i = 0; i < n; i++) {
		w = (*getitem)(v, i);
		if (!PyArg_GetDoubleArray(w, 1, 0, width, vec))
			return NULL;
		v3d(vec);
	}
	
	Py_INCREF(Py_None);
	return Py_None;
}

/*
vnarray, nvarray -- an array of n3f and v3f calls.
The argument is an array (list or tuple) of pairs of points and normals.
Each pair is a tuple (NOT a list) of a point and a normal for that point.
Each point or normal must be a tuple (NOT a list) of coordinates (x, y, z).
Three coordinates must be given.  Float and int values may be mixed.
For each pair, n3f() is called for the normal, and then v3f() is called
for the vector.

vnarray and nvarray differ only in the order of the vector and normal in
the pair: vnarray expects (v, n) while nvarray expects (n, v).
*/

static PyObject *gen_nvarray(); /* Forward */

% nvarray

static PyObject *
gl_nvarray(self, args)
	PyObject *self;
	PyObject *args;
{
	return gen_nvarray(args, 0);
}

% vnarray

static PyObject *
gl_vnarray(self, args)
	PyObject *self;
	PyObject *args;
{
	return gen_nvarray(args, 1);
}

/* Generic, internal version of {nv,nv}array: inorm indicates the
   argument order, 0: normal first, 1: vector first. */

static PyObject *
gen_nvarray(args, inorm)
	PyObject *args;
	int inorm;
{
	PyObject *v, *w, *wnorm, *wvec;
	int i, n;
	float norm[3], vec[3];
	PyObject * (*getitem) Py_FPROTO((PyObject *, int));
	
	if (!PyArg_GetObject(args, 1, 0, &v))
		return NULL;
	
	if (PyList_Check(v)) {
		n = PyList_Size(v);
		getitem = PyList_GetItem;
	}
	else if (PyTuple_Check(v)) {
		n = PyTuple_Size(v);
		getitem = PyTuple_GetItem;
	}
	else {
		PyErr_BadArgument();
		return NULL;
	}
	
	for (i = 0; i < n; i++) {
		w = (*getitem)(v, i);
		if (!PyTuple_Check(w) || PyTuple_Size(w) != 2) {
			PyErr_BadArgument();
			return NULL;
		}
		wnorm = PyTuple_GetItem(w, inorm);
		wvec = PyTuple_GetItem(w, 1 - inorm);
		if (!PyArg_GetFloatArray(wnorm, 1, 0, 3, norm) ||
			!PyArg_GetFloatArray(wvec, 1, 0, 3, vec))
			return NULL;
		n3f(norm);
		v3f(vec);
	}
	
	Py_INCREF(Py_None);
	return Py_None;
}

/* nurbssurface(s_knots[], t_knots[], ctl[][], s_order, t_order, type).
   The dimensions of ctl[] are computed as follows:
   [len(s_knots) - s_order], [len(t_knots) - t_order]
*/

% nurbssurface

static PyObject *
gl_nurbssurface(self, args)
	PyObject *self;
	PyObject *args;
{
	long arg1 ;
	double * arg2 ;
	long arg3 ;
	double * arg4 ;
	double *arg5 ;
	long arg6 ;
	long arg7 ;
	long arg8 ;
	long ncoords;
	long s_byte_stride, t_byte_stride;
	long s_nctl, t_nctl;
	long s, t;
	PyObject *v, *w, *pt;
	double *pnext;
	if (!PyArg_GetLongArraySize(args, 6, 0, &arg1))
		return NULL;
	if ((arg2 = PyMem_NEW(double, arg1 )) == NULL) {
		return PyErr_NoMemory();
	}
	if (!PyArg_GetDoubleArray(args, 6, 0, arg1 , arg2))
		return NULL;
	if (!PyArg_GetLongArraySize(args, 6, 1, &arg3))
		return NULL;
	if ((arg4 = PyMem_NEW(double, arg3 )) == NULL) {
		return PyErr_NoMemory();
	}
	if (!PyArg_GetDoubleArray(args, 6, 1, arg3 , arg4))
		return NULL;
	if (!PyArg_GetLong(args, 6, 3, &arg6))
		return NULL;
	if (!PyArg_GetLong(args, 6, 4, &arg7))
		return NULL;
	if (!PyArg_GetLong(args, 6, 5, &arg8))
		return NULL;
	if (arg8 == N_XYZ)
		ncoords = 3;
	else if (arg8 == N_XYZW)
		ncoords = 4;
	else {
		PyErr_BadArgument();
		return NULL;
	}
	s_nctl = arg1 - arg6;
	t_nctl = arg3 - arg7;
	if (!PyArg_GetObject(args, 6, 2, &v))
		return NULL;
	if (!PyList_Check(v) || PyList_Size(v) != s_nctl) {
		PyErr_BadArgument();
		return NULL;
	}
	if ((arg5 = PyMem_NEW(double, s_nctl*t_nctl*ncoords )) == NULL) {
		return PyErr_NoMemory();
	}
	pnext = arg5;
	for (s = 0; s < s_nctl; s++) {
		w = PyList_GetItem(v, s);
		if (w == NULL || !PyList_Check(w) ||
					PyList_Size(w) != t_nctl) {
			PyErr_BadArgument();
			return NULL;
		}
		for (t = 0; t < t_nctl; t++) {
			pt = PyList_GetItem(w, t);
			if (!PyArg_GetDoubleArray(pt, 1, 0, ncoords, pnext))
				return NULL;
			pnext += ncoords;
		}
	}
	s_byte_stride = sizeof(double) * ncoords;
	t_byte_stride = s_byte_stride * s_nctl;
	nurbssurface( arg1 , arg2 , arg3 , arg4 ,
		s_byte_stride , t_byte_stride , arg5 , arg6 , arg7 , arg8 );
	PyMem_DEL(arg2);
	PyMem_DEL(arg4);
	PyMem_DEL(arg5);
	Py_INCREF(Py_None);
	return Py_None;
}

/* nurbscurve(knots, ctlpoints, order, type).
   The length of ctlpoints is len(knots)-order. */

%nurbscurve

static PyObject *
gl_nurbscurve(self, args)
	PyObject *self;
	PyObject *args;
{
	long arg1 ;
	double * arg2 ;
	long arg3 ;
	double * arg4 ;
	long arg5 ;
	long arg6 ;
	int ncoords, npoints;
	int i;
	PyObject *v;
	double *pnext;
	if (!PyArg_GetLongArraySize(args, 4, 0, &arg1))
		return NULL;
	if ((arg2 = PyMem_NEW(double, arg1 )) == NULL) {
		return PyErr_NoMemory();
	}
	if (!PyArg_GetDoubleArray(args, 4, 0, arg1 , arg2))
		return NULL;
	if (!PyArg_GetLong(args, 4, 2, &arg5))
		return NULL;
	if (!PyArg_GetLong(args, 4, 3, &arg6))
		return NULL;
	if (arg6 == N_ST)
		ncoords = 2;
	else if (arg6 == N_STW)
		ncoords = 3;
	else {
		PyErr_BadArgument();
		return NULL;
	}
	npoints = arg1 - arg5;
	if (!PyArg_GetObject(args, 4, 1, &v))
		return NULL;
	if (!PyList_Check(v) || PyList_Size(v) != npoints) {
		PyErr_BadArgument();
		return NULL;
	}
	if ((arg4 = PyMem_NEW(double, npoints*ncoords )) == NULL) {
		return PyErr_NoMemory();
	}
	pnext = arg4;
	for (i = 0; i < npoints; i++) {
		if (!PyArg_GetDoubleArray(PyList_GetItem(v, i), 1, 0, ncoords, pnext))
			return NULL;
		pnext += ncoords;
	}
	arg3 = (sizeof(double)) * ncoords;
	nurbscurve( arg1 , arg2 , arg3 , arg4 , arg5 , arg6 );
	PyMem_DEL(arg2);
	PyMem_DEL(arg4);
	Py_INCREF(Py_None);
	return Py_None;
}

/* pwlcurve(points, type).
   Points is a list of points. Type must be N_ST. */

%pwlcurve

static PyObject *
gl_pwlcurve(self, args)
	PyObject *self;
	PyObject *args;
{
	PyObject *v;
	long type;
	double *data, *pnext;
	long npoints, ncoords;
	int i;
	if (!PyArg_GetObject(args, 2, 0, &v))
		return NULL;
	if (!PyArg_GetLong(args, 2, 1, &type))
		return NULL;
	if (!PyList_Check(v)) {
		PyErr_BadArgument();
		return NULL;
	}
	npoints = PyList_Size(v);
	if (type == N_ST)
		ncoords = 2;
	else {
		PyErr_BadArgument();
		return NULL;
	}
	if ((data = PyMem_NEW(double, npoints*ncoords)) == NULL) {
		return PyErr_NoMemory();
	}
	pnext = data;
	for (i = 0; i < npoints; i++) {
		if (!PyArg_GetDoubleArray(PyList_GetItem(v, i), 1, 0, ncoords, pnext))
			return NULL;
		pnext += ncoords;
	}
	pwlcurve(npoints, data, sizeof(double)*ncoords, type);
	PyMem_DEL(data);
	Py_INCREF(Py_None);
	return Py_None;
}


/* Picking and Selecting */

static short *pickbuffer = NULL;
static long pickbuffersize;

static PyObject *
pick_select(args, func)
	PyObject *args;
	void (*func)();
{
	if (!PyArg_GetLong(args, 1, 0, &pickbuffersize))
		return NULL;
	if (pickbuffer != NULL) {
		PyErr_SetString(PyExc_RuntimeError,
			"pick/gselect: already picking/selecting");
		return NULL;
	}
	if ((pickbuffer = PyMem_NEW(short, pickbuffersize)) == NULL) {
		return PyErr_NoMemory();
	}
	(*func)(pickbuffer, pickbuffersize);
	Py_INCREF(Py_None);
	return Py_None;
}

static PyObject *
endpick_select(args, func)
	PyObject *args;
	long (*func)();
{
	PyObject *v, *w;
	int i, nhits, n;
	if (!PyArg_NoArgs(args))
		return NULL;
	if (pickbuffer == NULL) {
		PyErr_SetString(PyExc_RuntimeError,
			"endpick/endselect: not in pick/select mode");
		return NULL;
	}
	nhits = (*func)(pickbuffer);
	if (nhits < 0) {
		nhits = -nhits; /* How to report buffer overflow otherwise? */
	}
	/* Scan the buffer to see how many integers */
	n = 0;
	for (; nhits > 0; nhits--) {
		n += 1 + pickbuffer[n];
	}
	v = PyList_New(n);
	if (v == NULL)
		return NULL;
	/* XXX Could do it nicer and interpret the data structure here,
	   returning a list of lists. But this can be done in Python... */
	for (i = 0; i < n; i++) {
		w = PyInt_FromLong((long)pickbuffer[i]);
		if (w == NULL) {
			Py_DECREF(v);
			return NULL;
		}
		PyList_SetItem(v, i, w);
	}
	PyMem_DEL(pickbuffer);
	pickbuffer = NULL;
	return v;
}

extern void pick(), gselect();
extern long endpick(), endselect();

%pick
static PyObject *gl_pick(self, args) PyObject *self, *args; {
	return pick_select(args, pick);
}

%endpick
static PyObject *gl_endpick(self, args) PyObject *self, *args; {
	return endpick_select(args, endpick);
}

%gselect
static PyObject *gl_gselect(self, args) PyObject *self, *args; {
	return pick_select(args, gselect);
}

%endselect
static PyObject *gl_endselect(self, args) PyObject *self, *args; {
	return endpick_select(args, endselect);
}


/* XXX The generator botches this one.  Here's a quick hack to fix it. */

/* XXX The generator botches this one.  Here's a quick hack to fix it. */

% getmatrix float r[16]

static PyObject *
gl_getmatrix(self, args)
	PyObject *self;
	PyObject *args;
{
	Matrix arg1;
	PyObject *v, *w;
	int i, j;
	getmatrix( arg1 );
	v = PyList_New(16);
	if (v == NULL) {
		return PyErr_NoMemory();
	}
	for (i = 0; i < 4; i++) for (j = 0; j < 4; j++) {
		w = mknewfloatobject(arg1[i][j]);
		if (w == NULL) {
			Py_DECREF(v);
			return NULL;
		}
		PyList_SetItem(v, i*4+j, w);
	}
	return v;
}

/* Here's an alternate version that returns a 4x4 matrix instead of
   a vector.  Unfortunately it is incompatible with loadmatrix and
   multmatrix... */

% altgetmatrix float r[4][4]

static PyObject *
gl_altgetmatrix(self, args)
	PyObject *self;
	PyObject *args;
{
	Matrix arg1;
	PyObject *v, *w;
	int i, j;
	getmatrix( arg1 );
	v = PyList_New(4);
	if (v == NULL) {
		return NULL;
	}
	for (i = 0; i < 4; i++) {
		w = PyList_New(4);
		if (w == NULL) {
			Py_DECREF(v);
			return NULL;
		}
		PyList_SetItem(v, i, w);
	}
	for (i = 0; i < 4; i++) {
		for (j = 0; j < 4; j++) {
			w = mknewfloatobject(arg1[i][j]);
			if (w == NULL) {
				Py_DECREF(v);
				return NULL;
			}
			PyList_SetItem(PyList_GetItem(v, i), j, w);
		}
	}
	return v;
}

% lrectwrite

static PyObject *
gl_lrectwrite(self, args)
	PyObject *self;
	PyObject *args;
{
	short x1 ;
	short y1 ;
	short x2 ;
	short y2 ;
	string parray ;
	PyObject *s;
#if 0
	int pixcount;
#endif
	if (!PyArg_GetShort(args, 5, 0, &x1))
		return NULL;
	if (!PyArg_GetShort(args, 5, 1, &y1))
		return NULL;
	if (!PyArg_GetShort(args, 5, 2, &x2))
		return NULL;
	if (!PyArg_GetShort(args, 5, 3, &y2))
		return NULL;
	if (!PyArg_GetString(args, 5, 4, &parray))
		return NULL;
	if (!PyArg_GetObject(args, 5, 4, &s))
		return NULL;
#if 0
/* Don't check this, it breaks experiments with pixmode(PM_SIZE, ...) */
	pixcount = (long)(x2+1-x1) * (long)(y2+1-y1);
	if (!PyString_Check(s) || PyString_Size(s) != pixcount*sizeof(long)) {
		PyErr_SetString(PyExc_RuntimeError,
			   "string arg to lrectwrite has wrong size");
		return NULL;
	}
#endif
	lrectwrite( x1 , y1 , x2 , y2 , (unsigned long *) parray );
	Py_INCREF(Py_None);
	return Py_None;
}

% lrectread

static PyObject *
gl_lrectread(self, args)
	PyObject *self;
	PyObject *args;
{
	short x1 ;
	short y1 ;
	short x2 ;
	short y2 ;
	PyObject *parray;
	int pixcount;
	if (!PyArg_GetShort(args, 4, 0, &x1))
		return NULL;
	if (!PyArg_GetShort(args, 4, 1, &y1))
		return NULL;
	if (!PyArg_GetShort(args, 4, 2, &x2))
		return NULL;
	if (!PyArg_GetShort(args, 4, 3, &y2))
		return NULL;
	pixcount = (long)(x2+1-x1) * (long)(y2+1-y1);
	parray = PyString_FromStringAndSize((char *)NULL, pixcount*sizeof(long));
	if (parray == NULL)
		return NULL; /* No memory */
	lrectread(x1, y1, x2, y2, (unsigned long *) PyString_AsString(parray));
	return parray;
}

% readdisplay

static PyObject *
gl_readdisplay(self, args)
	PyObject *self;
        PyObject *args;
{
        short x1, y1, x2, y2;
	unsigned long *parray, hints;
	long size, size_ret;
	PyObject *rv;

	if ( !PyArg_Parse(args, "hhhhl", &x1, &y1, &x2, &y2, &hints) )
	  return 0;
	size = (long)(x2+1-x1) * (long)(y2+1-y1);
	rv = PyString_FromStringAndSize((char *)NULL, size*sizeof(long));
	if ( rv == NULL )
	  return NULL;
	parray = (unsigned long *)PyString_AsString(rv);
	size_ret = readdisplay(x1, y1, x2, y2, parray, hints);
	if ( size_ret != size ) {
	    printf("gl_readdisplay: got %ld pixels, expected %ld\n",
		   size_ret, size);
	    PyErr_SetString(PyExc_RuntimeError, "readdisplay returned unexpected length");
	    return NULL;
	}
	return rv;
}

/* Desperately needed, here are tools to compress and decompress
   the data manipulated by lrectread/lrectwrite.

   gl.packrect(width, height, packfactor, bigdata) --> smalldata
		makes 'bigdata' 4*(packfactor**2) times smaller by:
		- turning it into B/W (a factor 4)
		- replacing squares of size pacfactor by one
		  representative

   gl.unpackrect(width, height, packfactor, smalldata) --> bigdata
		is the inverse; the numeric arguments must be *the same*.

   Both work best if width and height are multiples of packfactor
   (in fact unpackrect will leave garbage bytes).
*/

% packrect

static PyObject *
gl_packrect(self, args)
	PyObject *self;
	PyObject *args;
{
	long width, height, packfactor;
	char *s;
	PyObject *unpacked, *packed;
	int pixcount, packedcount, x, y, r, g, b;
	unsigned long pixel;
	unsigned char *p;
	unsigned long *parray;
	if (!PyArg_GetLong(args, 4, 0, &width))
		return NULL;
	if (!PyArg_GetLong(args, 4, 1, &height))
		return NULL;
	if (!PyArg_GetLong(args, 4, 2, &packfactor))
		return NULL;
	if (!PyArg_GetString(args, 4, 3, &s)) /* For type checking only */
		return NULL;
	if (!PyArg_GetObject(args, 4, 3, &unpacked))
		return NULL;
	if (width <= 0 || height <= 0 || packfactor <= 0) {
		PyErr_SetString(PyExc_RuntimeError, "packrect args must be > 0");
		return NULL;
	}
	pixcount = width*height;
	packedcount = ((width+packfactor-1)/packfactor) *
		((height+packfactor-1)/packfactor);
	if (PyString_Size(unpacked) != pixcount*sizeof(long)) {
		PyErr_SetString(PyExc_RuntimeError,
			   "string arg to packrect has wrong size");
		return NULL;
	}
	packed = PyString_FromStringAndSize((char *)NULL, packedcount);
	if (packed == NULL)
		return NULL;
	parray = (unsigned long *) PyString_AsString(unpacked);
	p = (unsigned char *) PyString_AsString(packed);
	for (y = 0; y < height; y += packfactor, parray += packfactor*width) {
		for (x = 0; x < width; x += packfactor) {
			pixel = parray[x];
			r = pixel & 0xff;
			g = (pixel >> 8) & 0xff;
			b = (pixel >> 16) & 0xff;
			*p++ = (30*r+59*g+11*b) / 100;
		}
	}
	return packed;
}

% unpackrect

static unsigned long unpacktab[256];
static int unpacktab_inited = 0;

static PyObject *
gl_unpackrect(self, args)
	PyObject *self;
	PyObject *args;
{
	long width, height, packfactor;
	char *s;
	PyObject *unpacked, *packed;
	int pixcount, packedcount;
	register unsigned char *p;
	register unsigned long *parray;
	if (!unpacktab_inited) {
		register int white;
		for (white = 256; --white >= 0; )
			unpacktab[white] = white * 0x010101L;
		unpacktab_inited++;
	}
	if (!PyArg_GetLong(args, 4, 0, &width))
		return NULL;
	if (!PyArg_GetLong(args, 4, 1, &height))
		return NULL;
	if (!PyArg_GetLong(args, 4, 2, &packfactor))
		return NULL;
	if (!PyArg_GetString(args, 4, 3, &s)) /* For type checking only */
		return NULL;
	if (!PyArg_GetObject(args, 4, 3, &packed))
		return NULL;
	if (width <= 0 || height <= 0 || packfactor <= 0) {
		PyErr_SetString(PyExc_RuntimeError, "packrect args must be > 0");
		return NULL;
	}
	pixcount = width*height;
	packedcount = ((width+packfactor-1)/packfactor) *
		((height+packfactor-1)/packfactor);
	if (PyString_Size(packed) != packedcount) {
		PyErr_SetString(PyExc_RuntimeError,
			   "string arg to unpackrect has wrong size");
		return NULL;
	}
	unpacked = PyString_FromStringAndSize((char *)NULL, pixcount*sizeof(long));
	if (unpacked == NULL)
		return NULL;
	parray = (unsigned long *) PyString_AsString(unpacked);
	p = (unsigned char *) PyString_AsString(packed);
	if (packfactor == 1 && width*height > 0) {
		/* Just expand bytes to longs */
		register int x = width * height;
		do {
			*parray++ = unpacktab[*p++];
		} while (--x >= 0);
	}
	else {
		register int y;
		for (y = 0; y < height-packfactor+1;
		     y += packfactor, parray += packfactor*width) {
			register int x;
			for (x = 0; x < width-packfactor+1; x += packfactor) {
				register unsigned long pixel = unpacktab[*p++];
				register int i;
				for (i = packfactor*width; (i-=width) >= 0;) {
					register int j;
					for (j = packfactor; --j >= 0; )
						parray[i+x+j] = pixel;
				}
			}
		}
	}
	return unpacked;
}

% gversion
static PyObject *
gl_gversion(self, args)
	PyObject *self;
	PyObject *args;
{
	char buf[20];
	gversion(buf);
	return PyString_FromString(buf);
}


/* void clear - Manual because of clash with termcap */
%clear
static PyObject *
gl_clear(self, args)
	PyObject *self;
	PyObject *args;
{
	__GLclear( );
	Py_INCREF(Py_None);
	return Py_None;
}

/* End of manually written stubs */

%%

long 	getshade
if !solaris	void 	devport 	short s long s
void 	rdr2i 		long s long s
void	rectfs 		short s short s short s short s
void 	rects 		short s short s short s short s
void 	rmv2i 		long s long s
void	noport
void	popviewport
void	clearhitcode
void	closeobj
void	cursoff
void	curson
void	doublebuffer
void 	finish
void	gconfig
void	ginit
void	greset
void	multimap
void	onemap
void	popattributes
void	popmatrix
void	pushattributes
void	pushmatrix
void	pushviewport
void	qreset
void	RGBmode
void	singlebuffer
void	swapbuffers
void	gsync
void	gflush
void	tpon
void	tpoff
void	clkon
void	clkoff
void	ringbell
#void	callfunc
void	gbegin
void	textinit
void	initnames
void	pclos
void	popname
if !solaris	void	spclos
void	zclear
void	screenspace
void	reshapeviewport
void	winpush
void	winpop
void	foreground
void	endfullscrn
if !solaris	void	endpupmode
void	fullscrn
if !solaris	void	pupmode
void	winconstraints
void	pagecolor 	short s
void	textcolor 	short s
void 	color 	  	short s
void	curveit		short s
void	font		short s
void 	linewidth	short s
void    setlinestyle	short s
void	setmap		short s
void	swapinterval	short s
void	writemask	short s
if !solaris	void	textwritemask	short s
void	qdevice		short s
void	unqdevice	short s
void	curvebasis	short s
void	curveprecision	short s
void	loadname	short s
void	passthrough	short s
void	pushname	short s
void	setmonitor	short s
if !solaris	void	setshade	short s
void	setpattern	short s
if !solaris	void	pagewritemask	short s
#
void	callobj		long s
void	delobj		long s
void 	editobj		long s
void	makeobj		long s
void	maketag		long s
void	chunksize	long s
void	compactify	long s
void	deltag		long s
void	lsrepeat	long s
void	objinsert	long s
void 	objreplace	long s
void	winclose	long s
void	blanktime	long s
void 	freepup		long s
# This is not in the library!?
###void	pupcolor	long s
#
void	backbuffer	long s
void 	frontbuffer	long s
if !solaris	void	lsbackup	long s
void	resetls		long s
void	lampon		long s
void	lampoff		long s
void	setbell		long s
void	blankscreen	long s
void 	depthcue	long s
void	zbuffer		long s
void	backface	long s
#
void 	cmov2i		long s long s
void 	draw2i		long s long s
void	move2i		long s long s
void	pnt2i		long s long s
void 	patchbasis	long s long s
void 	patchprecision	long s long s
void	pdr2i		long s long s
void	pmv2i		long s long s
void	rpdr2i		long s long s
void	rpmv2i		long s long s
void	xfpt2i		long s long s
void	objdelete	long s long s
void	patchcurves	long s long s
void	minsize		long s long s
void 	maxsize		long s long s
void	keepaspect	long s long s
void	prefsize	long s long s
void	stepunit	long s long s
void 	fudge		long s long s
void 	winmove		long s long s
#
void 	attachcursor	short s short s
void 	deflinestyle	short s short s
void 	noise		short s short s
void 	picksize	short s short s
void 	qenter		short s short s
void 	setdepth	short s short s
void 	cmov2s		short s short s
void 	draw2s		short s	short s
void 	move2s		short s short s
void 	pdr2s		short s short s
void 	pmv2s		short s short s
void 	pnt2s		short s short s
void 	rdr2s		short s short s
void 	rmv2s		short s short s
void 	rpdr2s		short s short s
void 	rpmv2s		short s short s
void 	xfpt2s		short s short s
#
void cmov2		float s float s
void draw2		float s float s
void move2		float s float s
void pnt2		float s float s
void pdr2		float s float s
void pmv2		float s float s
void rdr2		float s float s
void rmv2		float s float s
void rpdr2		float s float s
void rpmv2		float s float s
void xfpt2		float s float s
#
void loadmatrix		float s[4*4]
# Really [4][4]
void multmatrix		float s[4*4]
# Really [4][4]
void crv			float s[3*4]
# Really [4][3]
void rcrv			float s[4*4]
# Really [4][4]
#
# Methods that have strings.  
#
void addtopup		long s char *s long s
void charstr		char *s
void getport	 	char *s
long strwidth		char *s
long winopen		char *s
void wintitle		char *s
#
# Methods that have 1 long (# of elements) and an array 
#
void polf		long s float s[3*arg1]
void polf2		long s float s[2*arg1]
void poly		long s float s[3*arg1]
void poly2		long s float s[2*arg1]
void crvn		long s float s[3*arg1]
void rcrvn		long s float s[4*arg1]
#
void polf2i		long s long s[2*arg1]
void polfi		long s long s[3*arg1]
void poly2i		long s long s[2*arg1]
void polyi		long s long s[3*arg1]
#
void polf2s		long s short s[2*arg1]
void polfs		long s short s[3*arg1]
void polys		long s short s[3*arg1]
void poly2s		long s short s[2*arg1]
#
void defcursor		short s u_short s[128]
# Is this useful?
void writepixels	short s u_short s[arg1]
# Should be unsigned short...
void defbasis		long s float s[4*4]
if !solaris	void gewrite		short s short s[arg1]
#
void rotate		short s char s
# This is not in the library!?
###void setbutton		short s char s
void rot		float s char s
#
void circfi		long s long s long s
void circi		long s long s long s
void cmovi		long s long s long s
void drawi		long s long s long s
void movei		long s long s long s
void pnti 		long s long s long s
void newtag		long s long s long s
void pdri  		long s long s long s
void pmvi  		long s long s long s
void rdri  		long s long s long s
void rmvi  		long s long s long s
void rpdri 		long s long s long s
void rpmvi 		long s long s long s
void xfpti 		long s long s long s
#
void circ		float s float s float s
void circf		float s float s float s
void cmov		float s float s float s
void draw		float s float s float s
void move		float s float s float s
void pnt		float s float s float s
void scale		float s float s float s
void translate		float s float s float s
void pdr		float s float s float s
void pmv		float s float s float s
void rdr		float s float s float s
void rmv		float s float s float s
void rpdr		float s float s float s
void rpmv		float s float s float s
void xfpt		float s float s float s
#
void RGBcolor		short s short s short s
void RGBwritemask	short s short s short s
void setcursor		short s short s short s
void tie		short s short s short s
void circfs		short s short s short s
void circs		short s short s short s
void cmovs		short s short s short s
void draws		short s short s short s
void moves		short s short s short s
void pdrs		short s short s short s
void pmvs		short s short s short s
void pnts		short s short s short s
void rdrs		short s short s short s
void rmvs		short s short s short s
void rpdrs		short s short s short s
void rpmvs		short s short s short s
void xfpts		short s short s short s
void curorigin		short s short s short s
void cyclemap		short s short s short s
#
void patch		float s[4*4] float s[4*4] float s[4*4]
void splf		long s float s[3*arg1] u_short s[arg1]
void splf2		long s float s[2*arg1] u_short s[arg1]
void splfi		long s long s[3*arg1] u_short s[arg1]
void splf2i		long s long s[2*arg1] u_short s[arg1]
void splfs		long s short s[3*arg1] u_short s[arg1]
void splf2s		long s short s[2*arg1] u_short s[arg1]
###void defpattern		short s short s u_short s[arg2*arg2/16]
#
void rpatch		float s[4*4] float s[4*4] float s[4*4] float s[4*4]
#
# routines that send 4 floats
#
void ortho2		float s float s float s float s
void rect		float s float s float s float s
void rectf		float s float s float s float s
void xfpt4		float s float s float s float s
#
void textport		short s short s short s short s
void mapcolor		short s short s short s short s
void scrmask		short s short s short s short s
void setvaluator	short s short s short s short s
void viewport		short s short s short s short s
void shaderange		short s short s short s short s
void xfpt4s		short s short s short s short s
void rectfi		long s long s long s long s
void recti		long s long s long s long s
void xfpt4i		long s long s long s long s
void prefposition	long s long s long s long s
#
void arc		float s float s float s short s short s
void arcf		float s float s float s short s short s
void arcfi		long s long s long s short s short s
void arci		long s long s long s short s short s
#
void bbox2		short s short s float s float s float s float s
void bbox2i		short s short s long s long s long s long s
void bbox2s		short s short s short s short s short s short s
void blink		short s short s short s short s short s
void ortho		float s float s float s float s float s float s
void window		float s float s float s float s float s float s
void lookat		float s float s float s float s float s float s short s
#
void perspective	short s float s float s float s
void polarview		float s short s short s short s
# XXX getichararray not supported
#void writeRGB		short s char s[arg1] char s[arg1] char s[arg1]
#
void arcfs		short s short s short s short s short s
void arcs		short s short s short s short s short s
void rectcopy		short s short s short s short s short s short s
if !solaris	void RGBcursor		short s short s short s short s short s short s short s
#
long getbutton		short s
long getcmmode
long getlsbackup
long getresetls
long getdcm
long getzbuffer
long ismex
long isobj		long s
long isqueued		short s
long istag		long s
#
long genobj
long gentag
long getbuffer
long getcolor
long getdisplaymode
long getfont
long getheight
long gethitcode
long getlstyle
long getlwidth
long getmap
long getplanes
long getwritemask
long qtest
long getlsrepeat
long getmonitor
long getopenobj
long getpattern
long winget
long winattach
long getothermonitor
long newpup
#
long getvaluator	short s
void winset		long s
long dopup		long s
void getdepth		short r short r
void getcpos		short r short r
void getsize		long r long r
void getorigin		long r long r
void getviewport	short r short r short r short r
if !solaris	void gettp		short r short r short r short r
void getgpos		float r float r float r float r
void winposition	long s long s long s long s
void gRGBcolor		short r short r short r
void gRGBmask		short r short r short r
void getscrmask	short r short r short r short r
###void gRGBcursor	short r short r short r short r short r short r short r short r
void getmcolor		short s short r short r short r
void mapw		long s short s short s float r float r float r float r float r float r
void mapw2		long s short s short s float r float r
###void defrasterfont	short s short s short s Fontchar s[arg3] short s short s[4*arg5]
###long qread		short r
void getcursor		short r u_short r u_short r long r
#
#   For these we receive arrays of stuff
#
###void getdev 		long s short s[arg1] short r[arg1]
#XXX not generated correctly yet
#void getmatrix		float r[16]
###long readpixels		short s short r[retval]
###long readRGB		short s char r[retval] char r[retval] char r[retval]
###long blkqread		short s short r[arg1]
#
#   New 4D routines
#
void cmode
void concave		long s
void curstype		long s
void drawmode		long s
void gammaramp		short s[256] short s[256] short s[256]
long getbackface
long getdescender
long getdrawmode
long getmmode
long getsm
long getvideo		long s
void imakebackground
void lmbind		short s short s
void lmdef		long s long s long s float s[arg3]
void mmode		long s
void normal		float s[3]
void overlay		long s
void RGBrange		short s short s short s short s short s short s short s short s
if !solaris	void setvideo 		long s long s
void shademodel		long s
void underlay		long s
#
# New Personal Iris/GT Routines
#
void bgnclosedline
void bgnline
void bgnpoint
void bgnpolygon
void bgnsurface
void bgntmesh
void bgntrim
void endclosedline
void endline
void endpoint
void endpolygon
void endsurface
void endtmesh
void endtrim
void blendfunction	long s long s
void c3f		float s[3]
void c3i		long  s[3]
void c3s		short s[3]
void c4f		float s[4]
void c4i		long  s[4]
void c4s		short s[4]
void colorf		float s
void cpack		long s
void czclear		long s long s
void dglclose		long s
long dglopen		char *s long s
long getgdesc		long s
void getnurbsproperty	long s float r
void glcompat		long s long s
void iconsize 		long s long s
void icontitle		char *s
void lRGBrange		short s short s short s short s short s short s long s long s
void linesmooth		long s
void lmcolor		long s
void logicop		long s
###long lrectread	 	short s short s short s short s long r[retval]
###void lrectwrite		short s short s short s short s long s[(arg2-arg1+1)*(arg4-arg3+1)]
### Now manual, with string last arg
###long rectread	 	short s short s short s short s short r[retval]
###void rectwrite		short s short s short s short s short s[(arg2-arg1+1)*(arg4-arg3+1)]
void lsetdepth		long s long s
void lshaderange	short s short s long s long s
void n3f		float s[3]
void noborder
void pntsmooth		long s
void readsource		long s
void rectzoom		float s float s
void sbox		float s float s float s float s
void sboxi		long s long s long s long s
void sboxs		short s short s short s short s
void sboxf		float s float s float s float s
void sboxfi		long s long s long s long s
void sboxfs		short s short s short s short s
void setnurbsproperty	long s float s
void setpup 		long s long s long s
void smoothline		long s
void subpixel		long s
void swaptmesh
long swinopen		long s
void v2f		float s[2]
void v2i		long  s[2]
void v2s		short s[2]
void v3f		float s[3]
void v3i		long  s[3]
void v3s		short s[3]
void v4f		float s[4]
void v4i		long  s[4]
void v4s		short s[4]
void videocmd		long s
long windepth		long s
void wmpack		long s
void zdraw		long s
void zfunction		long s
void zsource		long s
void zwritemask		long s
#
#   uses doubles
#
void v2d		double s[2]
void v3d		double s[3]
void v4d		double s[4]
#
# Why isn't this here?
#
void pixmode		long s long s
#
# New in IRIX 4.0
#
long qgetfd
void dither		long s