240 lines
7.7 KiB
C
240 lines
7.7 KiB
C
#ifdef HAVE_DIX_CONFIG_H
|
|
#include <dix-config.h>
|
|
#endif
|
|
|
|
#ifndef __GLX_unpack_h__
|
|
#define __GLX_unpack_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.
|
|
**
|
|
*/
|
|
|
|
#define __GLX_PAD(s) (((s)+3) & (GLuint)~3)
|
|
|
|
/*
|
|
** Fetch the context-id out of a SingleReq request pointed to by pc.
|
|
*/
|
|
#define __GLX_GET_SINGLE_CONTEXT_TAG(pc) (((xGLXSingleReq*)pc)->contextTag)
|
|
#define __GLX_GET_VENDPRIV_CONTEXT_TAG(pc) (((xGLXVendorPrivateReq*)pc)->contextTag)
|
|
|
|
/*
|
|
** Fetch a double from potentially unaligned memory.
|
|
*/
|
|
#ifdef __GLX_ALIGN64
|
|
#define __GLX_MEM_COPY(dst,src,n) if (src && dst) memcpy(dst,src,n)
|
|
#define __GLX_GET_DOUBLE(dst,src) __GLX_MEM_COPY(&dst,src,8)
|
|
#else
|
|
#define __GLX_GET_DOUBLE(dst,src) (dst) = *((GLdouble*)(src))
|
|
#endif
|
|
|
|
extern void __glXMemInit(void);
|
|
|
|
extern xGLXSingleReply __glXReply;
|
|
|
|
#define __GLX_BEGIN_REPLY(size) \
|
|
__glXReply.length = __GLX_PAD(size) >> 2; \
|
|
__glXReply.type = X_Reply; \
|
|
__glXReply.sequenceNumber = client->sequence;
|
|
|
|
#define __GLX_SEND_HEADER() \
|
|
WriteToClient( client, sz_xGLXSingleReply, (char *)&__glXReply);
|
|
|
|
#define __GLX_PUT_RETVAL(a) \
|
|
__glXReply.retval = (a);
|
|
|
|
#define __GLX_PUT_SIZE(a) \
|
|
__glXReply.size = (a);
|
|
|
|
#define __GLX_PUT_RENDERMODE(m) \
|
|
__glXReply.pad3 = (m)
|
|
|
|
/*
|
|
** Get a buffer to hold returned data, with the given alignment. If we have
|
|
** to realloc, allocate size+align, in case the pointer has to be bumped for
|
|
** alignment. The answerBuffer should already be aligned.
|
|
**
|
|
** NOTE: the cast (long)res below assumes a long is large enough to hold a
|
|
** pointer.
|
|
*/
|
|
#define __GLX_GET_ANSWER_BUFFER(res,cl,size,align) \
|
|
if ((size) > sizeof(answerBuffer)) { \
|
|
int bump; \
|
|
if ((cl)->returnBufSize < (size)+(align)) { \
|
|
(cl)->returnBuf = (GLbyte*)Xrealloc((cl)->returnBuf, \
|
|
(size)+(align)); \
|
|
if (!(cl)->returnBuf) { \
|
|
return BadAlloc; \
|
|
} \
|
|
(cl)->returnBufSize = (size)+(align); \
|
|
} \
|
|
res = (char*)cl->returnBuf; \
|
|
bump = (long)(res) % (align); \
|
|
if (bump) res += (align) - (bump); \
|
|
} else { \
|
|
res = (char *)answerBuffer; \
|
|
}
|
|
|
|
#define __GLX_PUT_BYTE() \
|
|
*(GLbyte *)&__glXReply.pad3 = *(GLbyte *)answer
|
|
|
|
#define __GLX_PUT_SHORT() \
|
|
*(GLshort *)&__glXReply.pad3 = *(GLshort *)answer
|
|
|
|
#define __GLX_PUT_INT() \
|
|
*(GLint *)&__glXReply.pad3 = *(GLint *)answer
|
|
|
|
#define __GLX_PUT_FLOAT() \
|
|
*(GLfloat *)&__glXReply.pad3 = *(GLfloat *)answer
|
|
|
|
#define __GLX_PUT_DOUBLE() \
|
|
*(GLdouble *)&__glXReply.pad3 = *(GLdouble *)answer
|
|
|
|
#define __GLX_SEND_BYTE_ARRAY(len) \
|
|
WriteToClient(client, __GLX_PAD((len)*__GLX_SIZE_INT8), (char *)answer)
|
|
|
|
#define __GLX_SEND_SHORT_ARRAY(len) \
|
|
WriteToClient(client, __GLX_PAD((len)*__GLX_SIZE_INT16), (char *)answer)
|
|
|
|
#define __GLX_SEND_INT_ARRAY(len) \
|
|
WriteToClient(client, (len)*__GLX_SIZE_INT32, (char *)answer)
|
|
|
|
#define __GLX_SEND_FLOAT_ARRAY(len) \
|
|
WriteToClient(client, (len)*__GLX_SIZE_FLOAT32, (char *)answer)
|
|
|
|
#define __GLX_SEND_DOUBLE_ARRAY(len) \
|
|
WriteToClient(client, (len)*__GLX_SIZE_FLOAT64, (char *)answer)
|
|
|
|
|
|
#define __GLX_SEND_VOID_ARRAY(len) __GLX_SEND_BYTE_ARRAY(len)
|
|
#define __GLX_SEND_UBYTE_ARRAY(len) __GLX_SEND_BYTE_ARRAY(len)
|
|
#define __GLX_SEND_USHORT_ARRAY(len) __GLX_SEND_SHORT_ARRAY(len)
|
|
#define __GLX_SEND_UINT_ARRAY(len) __GLX_SEND_INT_ARRAY(len)
|
|
|
|
/*
|
|
** PERFORMANCE NOTE:
|
|
** Machine dependent optimizations abound here; these swapping macros can
|
|
** conceivably be replaced with routines that do the job faster.
|
|
*/
|
|
#define __GLX_DECLARE_SWAP_VARIABLES \
|
|
GLbyte sw
|
|
|
|
#define __GLX_DECLARE_SWAP_ARRAY_VARIABLES \
|
|
GLbyte *swapPC; \
|
|
GLbyte *swapEnd
|
|
|
|
|
|
#define __GLX_SWAP_INT(pc) \
|
|
sw = ((GLbyte *)(pc))[0]; \
|
|
((GLbyte *)(pc))[0] = ((GLbyte *)(pc))[3]; \
|
|
((GLbyte *)(pc))[3] = sw; \
|
|
sw = ((GLbyte *)(pc))[1]; \
|
|
((GLbyte *)(pc))[1] = ((GLbyte *)(pc))[2]; \
|
|
((GLbyte *)(pc))[2] = sw;
|
|
|
|
#define __GLX_SWAP_SHORT(pc) \
|
|
sw = ((GLbyte *)(pc))[0]; \
|
|
((GLbyte *)(pc))[0] = ((GLbyte *)(pc))[1]; \
|
|
((GLbyte *)(pc))[1] = sw;
|
|
|
|
#define __GLX_SWAP_DOUBLE(pc) \
|
|
sw = ((GLbyte *)(pc))[0]; \
|
|
((GLbyte *)(pc))[0] = ((GLbyte *)(pc))[7]; \
|
|
((GLbyte *)(pc))[7] = sw; \
|
|
sw = ((GLbyte *)(pc))[1]; \
|
|
((GLbyte *)(pc))[1] = ((GLbyte *)(pc))[6]; \
|
|
((GLbyte *)(pc))[6] = sw; \
|
|
sw = ((GLbyte *)(pc))[2]; \
|
|
((GLbyte *)(pc))[2] = ((GLbyte *)(pc))[5]; \
|
|
((GLbyte *)(pc))[5] = sw; \
|
|
sw = ((GLbyte *)(pc))[3]; \
|
|
((GLbyte *)(pc))[3] = ((GLbyte *)(pc))[4]; \
|
|
((GLbyte *)(pc))[4] = sw;
|
|
|
|
#define __GLX_SWAP_FLOAT(pc) \
|
|
sw = ((GLbyte *)(pc))[0]; \
|
|
((GLbyte *)(pc))[0] = ((GLbyte *)(pc))[3]; \
|
|
((GLbyte *)(pc))[3] = sw; \
|
|
sw = ((GLbyte *)(pc))[1]; \
|
|
((GLbyte *)(pc))[1] = ((GLbyte *)(pc))[2]; \
|
|
((GLbyte *)(pc))[2] = sw;
|
|
|
|
#define __GLX_SWAP_INT_ARRAY(pc, count) \
|
|
swapPC = ((GLbyte *)(pc)); \
|
|
swapEnd = ((GLbyte *)(pc)) + (count)*__GLX_SIZE_INT32;\
|
|
while (swapPC < swapEnd) { \
|
|
__GLX_SWAP_INT(swapPC); \
|
|
swapPC += __GLX_SIZE_INT32; \
|
|
}
|
|
|
|
#define __GLX_SWAP_SHORT_ARRAY(pc, count) \
|
|
swapPC = ((GLbyte *)(pc)); \
|
|
swapEnd = ((GLbyte *)(pc)) + (count)*__GLX_SIZE_INT16;\
|
|
while (swapPC < swapEnd) { \
|
|
__GLX_SWAP_SHORT(swapPC); \
|
|
swapPC += __GLX_SIZE_INT16; \
|
|
}
|
|
|
|
#define __GLX_SWAP_DOUBLE_ARRAY(pc, count) \
|
|
swapPC = ((GLbyte *)(pc)); \
|
|
swapEnd = ((GLbyte *)(pc)) + (count)*__GLX_SIZE_FLOAT64;\
|
|
while (swapPC < swapEnd) { \
|
|
__GLX_SWAP_DOUBLE(swapPC); \
|
|
swapPC += __GLX_SIZE_FLOAT64; \
|
|
}
|
|
|
|
#define __GLX_SWAP_FLOAT_ARRAY(pc, count) \
|
|
swapPC = ((GLbyte *)(pc)); \
|
|
swapEnd = ((GLbyte *)(pc)) + (count)*__GLX_SIZE_FLOAT32;\
|
|
while (swapPC < swapEnd) { \
|
|
__GLX_SWAP_FLOAT(swapPC); \
|
|
swapPC += __GLX_SIZE_FLOAT32; \
|
|
}
|
|
|
|
#define __GLX_SWAP_REPLY_HEADER() \
|
|
__GLX_SWAP_SHORT(&__glXReply.sequenceNumber); \
|
|
__GLX_SWAP_INT(&__glXReply.length);
|
|
|
|
#define __GLX_SWAP_REPLY_RETVAL() \
|
|
__GLX_SWAP_INT(&__glXReply.retval)
|
|
|
|
#define __GLX_SWAP_REPLY_SIZE() \
|
|
__GLX_SWAP_INT(&__glXReply.size)
|
|
|
|
#endif /* !__GLX_unpack_h__ */
|
|
|
|
|
|
|
|
|
|
|