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/* -*- mode: c; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 3; coding: utf-8-unix -*- */
#ifndef __GLX_packsingle_h__
#define __GLX_packsingle_h__
/*
* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice including the dates of first publication and
* either this permission notice or a reference to
* http://oss.sgi.com/projects/FreeB/
* shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of Silicon Graphics, Inc.
* shall not be used in advertising or otherwise to promote the sale, use or
* other dealings in this Software without prior written authorization from
* Silicon Graphics, Inc.
*/
#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_SINGLE_BEGIN issues its own store
** to req->reqType with the proper code (our extension code).
*/
#define X_GLXSingle 0
/* Declare common variables used during a single command */
#define __GLX_SINGLE_DECLARE_VARIABLES() \
__GLXcontext *gc = __glXGetCurrentContext(); \
GLubyte *pc, *pixelHeaderPC; \
GLuint compsize, cmdlen; \
Display *dpy = gc->currentDpy; \
xGLXSingleReq *req
#define __GLX_SINGLE_LOAD_VARIABLES() \
pc = gc->pc; \
/* Muffle compilers */ \
pixelHeaderPC = 0; (void)pixelHeaderPC; \
compsize = 0; (void)compsize; \
cmdlen = 0; (void)cmdlen
/* Start a single command */
#define __GLX_SINGLE_BEGIN(opcode,bytes) \
if (dpy) { \
(void) __glXFlushRenderBuffer(gc, pc); \
LockDisplay(dpy); \
GetReqExtra(GLXSingle,bytes,req); \
req->reqType = gc->majorOpcode; \
req->glxCode = opcode; \
req->contextTag = gc->currentContextTag; \
pc = ((GLubyte *)(req) + sz_xGLXSingleReq)
/* End a single command */
#define __GLX_SINGLE_END() \
UnlockDisplay(dpy); \
SyncHandle(); \
}
/* Store data to sending for a single command */
#define __GLX_SINGLE_PUT_CHAR(offset,a) \
*((INT8 *) (pc + offset)) = a
#ifndef CRAY
#define __GLX_SINGLE_PUT_SHORT(offset,a) \
*((INT16 *) (pc + offset)) = a
#define __GLX_SINGLE_PUT_LONG(offset,a) \
*((INT32 *) (pc + offset)) = a
#define __GLX_SINGLE_PUT_FLOAT(offset,a) \
*((FLOAT32 *) (pc + offset)) = a
#else
#define __GLX_SINGLE_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_SINGLE_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_SINGLE_PUT_FLOAT(offset,a) \
gl_put_float(pc + offset, a)
#endif
/* Read support macros */
#define __GLX_SINGLE_READ_XREPLY() \
(void) _XReply(dpy, (xReply*) &reply, 0, False)
#define __GLX_SINGLE_GET_RETVAL(a,cast) \
a = (cast) reply.retval
#define __GLX_SINGLE_GET_SIZE(a) \
a = (GLint) reply.size
#ifndef _CRAY
#define __GLX_SINGLE_GET_CHAR(p) \
*p = *(GLbyte *)&reply.pad3;
#define __GLX_SINGLE_GET_SHORT(p) \
*p = *(GLshort *)&reply.pad3;
#define __GLX_SINGLE_GET_LONG(p) \
*p = *(GLint *)&reply.pad3;
#define __GLX_SINGLE_GET_FLOAT(p) \
*p = *(GLfloat *)&reply.pad3;
#else
#define __GLX_SINGLE_GET_CHAR(p) \
*p = reply.pad3 >> 24;
#define __GLX_SINGLE_GET_SHORT(p) \
{int t = reply.pad3 >> 16; \
*p = (t & 0x8000) ? (t | ~0xffff) : (t & 0xffff);}
#define __GLX_SINGLE_GET_LONG(p) \
{int t = reply.pad3; \
*p = (t & 0x80000000) ? (t | ~0xffffffff) : (t & 0xffffffff);}
#define PAD3OFFSET 16
#define __GLX_SINGLE_GET_FLOAT(p) \
*p = gl_ntoh_float((GLubyte *)&reply + PAD3OFFSET);
#define __GLX_SINGLE_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_SINGLE_GET_DOUBLE(p) \
__GLX_MEM_COPY(p, &reply.pad3, 8)
#else
#define __GLX_SINGLE_GET_DOUBLE(p) \
*p = *(GLdouble *)&reply.pad3
#endif
#endif
/* Get an array of typed data */
#define __GLX_SINGLE_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_SINGLE_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_SINGLE_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_SINGLE_GET_LONG_ARRAY(a,alen) \
_XRead(dpy,(char *)a,alen*__GLX_SIZE_INT32);
#ifndef _CRAY
#define __GLX_SINGLE_GET_FLOAT_ARRAY(a,alen) \
_XRead(dpy,(char *)a,alen*__GLX_SIZE_FLOAT32);
#define __GLX_SINGLE_GET_DOUBLE_ARRAY(a,alen) \
_XRead(dpy,(char *)a,alen*__GLX_SIZE_FLOAT64);
#else
#define __GLX_SINGLE_GET_FLOAT_ARRAY(a,alen) \
gl_get_float_array(dpy,a,alen);
#define __GLX_SINGLE_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_packsingle_h__ */
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