mirror of https://gitlab.freedesktop.org/mesa/mesa
220 lines
6.9 KiB
C
220 lines
6.9 KiB
C
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/* $XFree86: xc/lib/GL/glx/packsingle.h,v 1.5tsi Exp $ */
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#ifndef __GLX_packsingle_h__
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#define __GLX_packsingle_h__
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/*
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** License Applicability. Except to the extent portions of this file are
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** made subject to an alternative license as permitted in the SGI Free
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** Software License B, Version 1.1 (the "License"), the contents of this
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** file are subject only to the provisions of the License. You may not use
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** this file except in compliance with the License. You may obtain a copy
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** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
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** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
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**
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** http://oss.sgi.com/projects/FreeB
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**
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** Note that, as provided in the License, the Software is distributed on an
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** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
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** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
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** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
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** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
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**
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** Original Code. The Original Code is: OpenGL Sample Implementation,
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** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
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** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
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** Copyright in any portions created by third parties is as indicated
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** elsewhere herein. All Rights Reserved.
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**
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** Additional Notice Provisions: The application programming interfaces
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** established by SGI in conjunction with the Original Code are The
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** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
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** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
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** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
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** Window System(R) (Version 1.3), released October 19, 1998. This software
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** was created using the OpenGL(R) version 1.2.1 Sample Implementation
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** published by SGI, but has not been independently verified as being
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** compliant with the OpenGL(R) version 1.2.1 Specification.
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**
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*/
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#include "packrender.h"
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/*
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** The macros in this header convert wire protocol data types to the client
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** machine's native data types. The header is part of the porting layer of
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** the client library, and it is intended that hardware vendors will rewrite
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** this header to suit their own machines.
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*/
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/*
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** Dummy define to make the GetReqExtra macro happy. The value is not
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** used, but instead the code in __GLX_SINGLE_BEGIN issues its own store
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** to req->reqType with the proper code (our extension code).
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*/
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#define X_GLXSingle 0
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/* Declare common variables used during a single command */
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#define __GLX_SINGLE_DECLARE_VARIABLES() \
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__GLXcontext *gc = __glXGetCurrentContext(); \
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GLubyte *pc, *pixelHeaderPC; \
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GLuint compsize, cmdlen; \
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Display *dpy = gc->currentDpy; \
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xGLXSingleReq *req
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#define __GLX_SINGLE_LOAD_VARIABLES() \
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pc = gc->pc; \
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/* Muffle compilers */ \
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pixelHeaderPC = 0; (void)pixelHeaderPC; \
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compsize = 0; (void)compsize; \
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cmdlen = 0; (void)cmdlen
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/* Start a single command */
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#define __GLX_SINGLE_BEGIN(opcode,bytes) \
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if (dpy) { \
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(void) __glXFlushRenderBuffer(gc, pc); \
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LockDisplay(dpy); \
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GetReqExtra(GLXSingle,bytes,req); \
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req->reqType = gc->majorOpcode; \
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req->glxCode = opcode; \
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req->contextTag = gc->currentContextTag; \
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pc = ((GLubyte *)(req) + sz_xGLXSingleReq)
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/* End a single command */
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#define __GLX_SINGLE_END() \
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UnlockDisplay(dpy); \
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SyncHandle(); \
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}
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/* Store data to sending for a single command */
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#define __GLX_SINGLE_PUT_CHAR(offset,a) \
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*((INT8 *) (pc + offset)) = a
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#ifndef CRAY
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#define __GLX_SINGLE_PUT_SHORT(offset,a) \
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*((INT16 *) (pc + offset)) = a
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#define __GLX_SINGLE_PUT_LONG(offset,a) \
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*((INT32 *) (pc + offset)) = a
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#define __GLX_SINGLE_PUT_FLOAT(offset,a) \
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*((FLOAT32 *) (pc + offset)) = a
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#else
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#define __GLX_SINGLE_PUT_SHORT(offset,a) \
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{ GLubyte *cp = (pc+offset); \
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int shift = (64-16) - ((int)(cp) >> (64-6)); \
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*(int *)cp = (*(int *)cp & ~(0xffff << shift)) | ((a & 0xffff) << shift); }
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#define __GLX_SINGLE_PUT_LONG(offset,a) \
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{ GLubyte *cp = (pc+offset); \
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int shift = (64-32) - ((int)(cp) >> (64-6)); \
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*(int *)cp = (*(int *)cp & ~(0xffffffff << shift)) | ((a & 0xffffffff) << shift); }
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#define __GLX_SINGLE_PUT_FLOAT(offset,a) \
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gl_put_float(pc + offset, a)
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#endif
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/* Read support macros */
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#define __GLX_SINGLE_READ_XREPLY() \
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(void) _XReply(dpy, (xReply*) &reply, 0, False)
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#define __GLX_SINGLE_GET_RETVAL(a,cast) \
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a = (cast) reply.retval
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#define __GLX_SINGLE_GET_SIZE(a) \
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a = (GLint) reply.size
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#ifndef _CRAY
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#define __GLX_SINGLE_GET_CHAR(p) \
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*p = *(GLbyte *)&reply.pad3;
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#define __GLX_SINGLE_GET_SHORT(p) \
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*p = *(GLshort *)&reply.pad3;
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#define __GLX_SINGLE_GET_LONG(p) \
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*p = *(GLint *)&reply.pad3;
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#define __GLX_SINGLE_GET_FLOAT(p) \
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*p = *(GLfloat *)&reply.pad3;
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#else
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#define __GLX_SINGLE_GET_CHAR(p) \
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*p = reply.pad3 >> 24;
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#define __GLX_SINGLE_GET_SHORT(p) \
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{int t = reply.pad3 >> 16; \
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*p = (t & 0x8000) ? (t | ~0xffff) : (t & 0xffff);}
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#define __GLX_SINGLE_GET_LONG(p) \
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{int t = reply.pad3; \
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*p = (t & 0x80000000) ? (t | ~0xffffffff) : (t & 0xffffffff);}
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#define PAD3OFFSET 16
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#define __GLX_SINGLE_GET_FLOAT(p) \
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*p = gl_ntoh_float((GLubyte *)&reply + PAD3OFFSET);
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#define __GLX_SINGLE_GET_DOUBLE(p) \
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*p = gl_ntoh_double((GLubyte *)&reply + PAD3OFFSET);
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extern float gl_ntoh_float(GLubyte *);
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extern float gl_ntoh_double(GLubyte *);
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#endif
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#ifndef _CRAY
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#ifdef __GLX_ALIGN64
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#define __GLX_SINGLE_GET_DOUBLE(p) \
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__GLX_MEM_COPY(p, &reply.pad3, 8)
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#else
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#define __GLX_SINGLE_GET_DOUBLE(p) \
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*p = *(GLdouble *)&reply.pad3
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#endif
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#endif
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/* Get an array of typed data */
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#define __GLX_SINGLE_GET_VOID_ARRAY(a,alen) \
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{ \
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GLint slop = alen*__GLX_SIZE_INT8 & 3; \
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_XRead(dpy,(char *)a,alen*__GLX_SIZE_INT8); \
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if (slop) _XEatData(dpy,4-slop); \
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}
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#define __GLX_SINGLE_GET_CHAR_ARRAY(a,alen) \
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{ \
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GLint slop = alen*__GLX_SIZE_INT8 & 3; \
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_XRead(dpy,(char *)a,alen*__GLX_SIZE_INT8); \
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if (slop) _XEatData(dpy,4-slop); \
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}
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#define __GLX_SINGLE_GET_SHORT_ARRAY(a,alen) \
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{ \
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GLint slop = (alen*__GLX_SIZE_INT16) & 3; \
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_XRead(dpy,(char *)a,alen*__GLX_SIZE_INT16);\
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if (slop) _XEatData(dpy,4-slop); \
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}
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#define __GLX_SINGLE_GET_LONG_ARRAY(a,alen) \
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_XRead(dpy,(char *)a,alen*__GLX_SIZE_INT32);
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#ifndef _CRAY
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#define __GLX_SINGLE_GET_FLOAT_ARRAY(a,alen) \
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_XRead(dpy,(char *)a,alen*__GLX_SIZE_FLOAT32);
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#define __GLX_SINGLE_GET_DOUBLE_ARRAY(a,alen) \
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_XRead(dpy,(char *)a,alen*__GLX_SIZE_FLOAT64);
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#else
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#define __GLX_SINGLE_GET_FLOAT_ARRAY(a,alen) \
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gl_get_float_array(dpy,a,alen);
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#define __GLX_SINGLE_GET_DOUBLE_ARRAY(a,alen) \
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gl_get_double_array(dpy, a, alen);
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extern void gl_get_float_array(Display *dpy, float *a, int alen);
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extern void gl_get_double_array(Display *dpy, double *a, int alen);
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#endif
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#endif /* !__GLX_packsingle_h__ */
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