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#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()         \

   struct glx_context *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__ */