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Diffstat (limited to 'src/glx/x11/packsingle.h')
| -rw-r--r-- | src/glx/x11/packsingle.h | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/src/glx/x11/packsingle.h b/src/glx/x11/packsingle.h new file mode 100644 index 00000000000..16b054f1e04 --- /dev/null +++ b/src/glx/x11/packsingle.h @@ -0,0 +1,219 @@ +/* $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__ */ |