mirror of https://gitlab.freedesktop.org/mesa/mesa
130 lines
4.2 KiB
C
130 lines
4.2 KiB
C
#ifndef __GLX_packsingle_h__
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#define __GLX_packsingle_h__
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/*
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* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
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* Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
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*
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* SPDX-License-Identifier: SGI-B-2.0
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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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struct glx_context *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 = NULL; (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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#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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/* 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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#define __GLX_SINGLE_GET_CHAR(p) \
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memcpy((p), &reply.pad3, 1);
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#define __GLX_SINGLE_GET_SHORT(p) \
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memcpy((p), &reply.pad3, 2);
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#define __GLX_SINGLE_GET_LONG(p) \
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memcpy((p), &reply.pad3, 4);
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#define __GLX_SINGLE_GET_FLOAT(p) \
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memcpy((p), &reply.pad3, 4);
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#define __GLX_SINGLE_GET_DOUBLE(p) \
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memcpy((p), &reply.pad3, 8);
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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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#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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#endif /* !__GLX_packsingle_h__ */
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