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#ifndef __GLX_packvendpriv_h__
#define __GLX_packvendpriv_h__
/* $XFree86: xc/lib/GL/glx/packvendpriv.h,v 1.2 1999/06/14 07:23:38 dawes Exp $ */
/*
** The contents of this file are subject to the GLX Public License Version 1.0
** (the "License"). You may not use this file except in compliance with the
** License. You may obtain a copy of the License at Silicon Graphics, Inc.,
** attn: Legal Services, 2011 N. Shoreline Blvd., Mountain View, CA 94043
** or at http://www.sgi.com/software/opensource/glx/license.html.
**
** Software distributed under the License is distributed on an "AS IS"
** basis. ALL WARRANTIES ARE DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY
** IMPLIED WARRANTIES OF MERCHANTABILITY, OF FITNESS FOR A PARTICULAR
** PURPOSE OR OF NON- INFRINGEMENT. See the License for the specific
** language governing rights and limitations under the License.
**
** The Original Software is GLX version 1.2 source code, released February,
** 1999. The developer of the Original Software is Silicon Graphics, Inc.
** Those portions of the Subject Software created by Silicon Graphics, Inc.
** are Copyright (c) 1991-9 Silicon Graphics, Inc. All Rights Reserved.
**
** $SGI$
*/
#include "packrender.h"
/*
** The macros in this header convert wire protocol data types to the client
** machine's native data types. The header is part of the porting layer of
** the client library, and it is intended that hardware vendors will rewrite
** this header to suit their own machines.
*/
/*
** Dummy define to make the GetReqExtra macro happy. The value is not
** used, but instead the code in __GLX_VENDPRIV_BEGIN issues its own store
** to req->reqType with the proper code (our extension code).
*/
#define X_GLXVendpriv 0
/* Declare common variables used during a single command */
#define __GLX_VENDPRIV_DECLARE_VARIABLES() \
__GLXcontext *gc = __glXGetCurrentContext(); \
GLubyte *pc, *pixelHeaderPC; \
GLuint compsize, cmdlen; \
Display *dpy = gc->currentDpy; \
xGLXVendorPrivateReq *req
#define __GLX_VENDPRIV_LOAD_VARIABLES() \
pc = gc->pc; \
(void) pixelHeaderPC; \
(void) compsize; \
(void) cmdlen
/* Start a vendor private command */
#define __GLX_VENDPRIV_BEGIN(glxcode, opcode,bytes) \
if (dpy) { \
(void) __glXFlushRenderBuffer(gc, pc); \
LockDisplay(dpy); \
GetReqExtra(GLXVendorPrivate,bytes,req); \
req->reqType = gc->majorOpcode; \
req->glxCode = glxcode; \
req->vendorCode = opcode; \
req->contextTag = gc->currentContextTag; \
pc = ((GLubyte *)(req) + sz_xGLXVendorPrivateReq)
/* End a vendor private command */
#define __GLX_VENDPRIV_END() \
UnlockDisplay(dpy); \
SyncHandle(); \
}
/* Store data to sending for a vendor private command */
#define __GLX_VENDPRIV_PUT_CHAR(offset,a) \
*((INT8 *) (pc + offset)) = a
#ifndef CRAY
#define __GLX_VENDPRIV_PUT_SHORT(offset,a) \
*((INT16 *) (pc + offset)) = a
#define __GLX_VENDPRIV_PUT_LONG(offset,a) \
*((INT32 *) (pc + offset)) = a
#define __GLX_VENDPRIV_PUT_FLOAT(offset,a) \
*((FLOAT32 *) (pc + offset)) = a
#else
#define __GLX_VENDPRIV_PUT_SHORT(offset,a) \
{ GLubyte *cp = (pc+offset); \
int shift = (64-16) - ((int)(cp) >> (64-6)); \
*(int *)cp = (*(int *)cp & ~(0xffff << shift)) | ((a & 0xffff) << shift); }
#define __GLX_VENDPRIV_PUT_LONG(offset,a) \
{ GLubyte *cp = (pc+offset); \
int shift = (64-32) - ((int)(cp) >> (64-6)); \
*(int *)cp = (*(int *)cp & ~(0xffffffff << shift)) | ((a & 0xffffffff) << shift); }
#define __GLX_VENDPRIV_PUT_FLOAT(offset,a) \
gl_put_float(pc + offset, a)
#endif
/* Read support macros */
#define __GLX_VENDPRIV_READ_XREPLY() \
(void) _XReply(dpy, (xReply*) &reply, 0, False)
#define __GLX_VENDPRIV_GET_RETVAL(a,cast) \
a = (cast) reply.retval
#define __GLX_VENDPRIV_GET_SIZE(a) \
a = (GLint) reply.size
#ifndef _CRAY
#define __GLX_VENDPRIV_GET_CHAR(p) \
*p = *(GLbyte *)&reply.pad3;
#define __GLX_VENDPRIV_GET_SHORT(p) \
*p = *(GLshort *)&reply.pad3;
#define __GLX_VENDPRIV_GET_LONG(p) \
*p = *(GLint *)&reply.pad3;
#define __GLX_VENDPRIV_GET_FLOAT(p) \
*p = *(GLfloat *)&reply.pad3;
#else
#define __GLX_VENDPRIV_GET_CHAR(p) \
*p = reply.pad3 >> 24;
#define __GLX_VENDPRIV_GET_SHORT(p) \
{int t = reply.pad3 >> 16; \
*p = (t & 0x8000) ? (t | ~0xffff) : (t & 0xffff);}
#define __GLX_VENDPRIV_GET_LONG(p) \
{int t = reply.pad3; \
*p = (t & 0x80000000) ? (t | ~0xffffffff) : (t & 0xffffffff);}
#define PAD3OFFSET 16
#define __GLX_VENDPRIV_GET_FLOAT(p) \
*p = gl_ntoh_float((GLubyte *)&reply + PAD3OFFSET);
#define __GLX_VENDPRIV_GET_DOUBLE(p) \
*p = gl_ntoh_double((GLubyte *)&reply + PAD3OFFSET);
extern float gl_ntoh_float(GLubyte *);
extern float gl_ntoh_double(GLubyte *);
#endif
#ifndef _CRAY
#ifdef __GLX_ALIGN64
#define __GLX_VENDPRIV_GET_DOUBLE(p) \
__GLX_MEM_COPY(p, &reply.pad3, 8)
#else
#define __GLX_VENDPRIV_GET_DOUBLE(p) \
*p = *(GLdouble *)&reply.pad3
#endif
#endif
/* Get an array of typed data */
#define __GLX_VENDPRIV_GET_VOID_ARRAY(a,alen) \
{ \
GLint slop = alen*__GLX_SIZE_INT8 & 3; \
_XRead(dpy,(char *)a,alen*__GLX_SIZE_INT8); \
if (slop) _XEatData(dpy,4-slop); \
}
#define __GLX_VENDPRIV_GET_CHAR_ARRAY(a,alen) \
{ \
GLint slop = alen*__GLX_SIZE_INT8 & 3; \
_XRead(dpy,(char *)a,alen*__GLX_SIZE_INT8); \
if (slop) _XEatData(dpy,4-slop); \
}
#define __GLX_VENDPRIV_GET_SHORT_ARRAY(a,alen) \
{ \
GLint slop = (alen*__GLX_SIZE_INT16) & 3; \
_XRead(dpy,(char *)a,alen*__GLX_SIZE_INT16); \
if (slop) _XEatData(dpy,4-slop); \
}
#define __GLX_VENDPRIV_GET_LONG_ARRAY(a,alen) \
_XRead(dpy,(char *)a,alen*__GLX_SIZE_INT32);
#ifndef _CRAY
#define __GLX_VENDPRIV_GET_FLOAT_ARRAY(a,alen) \
_XRead(dpy,(char *)a,alen*__GLX_SIZE_FLOAT32);
#define __GLX_VENDPRIV_GET_DOUBLE_ARRAY(a,alen) \
_XRead(dpy,(char *)a,alen*__GLX_SIZE_FLOAT64);
#else
#define __GLX_VENDPRIV_GET_FLOAT_ARRAY(a,alen) \
gl_get_float_array(dpy,a,alen);
#define __GLX_VENDPRIV_GET_DOUBLE_ARRAY(a,alen) \
gl_get_double_array(dpy, a, alen);
extern void gl_get_float_array(Display *dpy, float *a, int alen);
extern void gl_get_double_array(Display *dpy, double *a, int alen);
#endif
#endif /* !__GLX_packvendpriv_h__ */
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