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+/* $XFree86: xc/lib/GL/glx/packsingle.h,v 1.5tsi Exp $ */
+#ifndef __GLX_packsingle_h__
+#define __GLX_packsingle_h__
+
+/*
+** License Applicability. Except to the extent portions of this file are
+** made subject to an alternative license as permitted in the SGI Free
+** Software License B, Version 1.1 (the "License"), the contents of this
+** file are subject only to the provisions of 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, 1600
+** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
+**
+** http://oss.sgi.com/projects/FreeB
+**
+** Note that, as provided in the License, the Software is distributed on an
+** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
+** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
+** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
+** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+**
+** Original Code. The Original Code is: OpenGL Sample Implementation,
+** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
+** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
+** Copyright in any portions created by third parties is as indicated
+** elsewhere herein. All Rights Reserved.
+**
+** Additional Notice Provisions: The application programming interfaces
+** established by SGI in conjunction with the Original Code are The
+** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
+** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
+** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
+** Window System(R) (Version 1.3), released October 19, 1998. This software
+** was created using the OpenGL(R) version 1.2.1 Sample Implementation
+** published by SGI, but has not been independently verified as being
+** compliant with the OpenGL(R) version 1.2.1 Specification.
+**
+*/
+
+#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__ */