ee3000f97d
Non-linux GNU systems such as Hurd will define __GLIBC__ or __GNU__
rather than __linux__. This must be tested for in order to get byteswap.h
included. See commit 594d180fe4 (24 Dec
2006) and other related patches (fixed in upstream HEAD then, why was
the patch not brought across to the 1.3 branch?).
164 lines
4.8 KiB
C
164 lines
4.8 KiB
C
/*
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* (C) Copyright IBM Corporation 2005, 2006
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sub license,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, THE AUTHORS, AND/OR THEIR SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/**
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* \file indirect_program.c
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* Hand-coded routines needed to support programmable pipeline extensions.
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*
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* \author Ian Romanick <idr@us.ibm.com>
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*/
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#define NEED_REPLIES
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include "glxserver.h"
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#include "glxext.h"
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#include "singlesize.h"
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#include "unpack.h"
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#include "indirect_size_get.h"
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#include "indirect_dispatch.h"
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#include "glapitable.h"
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#include "glapi.h"
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#include "glthread.h"
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#include "dispatch.h"
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#include "glapioffsets.h"
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#if defined(__linux__) || defined (__GLIBC__) || defined(__GNU__)
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#include <byteswap.h>
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#elif defined(__OpenBSD__)
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#include <sys/endian.h>
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#define bswap_16 __swap16
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#define bswap_32 __swap32
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#define bswap_64 __swap64
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#else
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#include <sys/endian.h>
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#define bswap_16 bswap16
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#define bswap_32 bswap32
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#define bswap_64 bswap64
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#endif
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static int DoGetProgramString(struct __GLXclientStateRec *cl, GLbyte *pc,
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unsigned get_programiv_offset, unsigned get_program_string_offset,
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Bool do_swap);
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/**
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* Handle both types of glGetProgramString calls.
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*
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* This single function handles both \c glGetProgramStringARB and
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* \c glGetProgramStringNV. The dispatch offsets for the functions to use
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* for \c glGetProgramivARB and \c glGetProgramStringARB are passed in by the
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* caller. These can be the offsets of either the ARB versions or the NV
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* versions.
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*/
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int DoGetProgramString(struct __GLXclientStateRec *cl, GLbyte *pc,
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unsigned get_programiv_offset,
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unsigned get_program_string_offset,
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Bool do_swap)
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{
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xGLXVendorPrivateWithReplyReq * const req =
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(xGLXVendorPrivateWithReplyReq *) pc;
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int error;
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__GLXcontext * const cx = __glXForceCurrent(cl, req->contextTag, & error);
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ClientPtr client = cl->client;
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pc += __GLX_VENDPRIV_HDR_SIZE;
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if (cx != NULL) {
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GLenum target;
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GLenum pname;
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GLint compsize = 0;
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char *answer = NULL, answerBuffer[200];
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if (do_swap) {
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target = (GLenum) bswap_32(*(int *)(pc + 0));
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pname = (GLenum) bswap_32(*(int *)(pc + 4));
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}
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else {
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target = *(GLenum *)(pc + 0);
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pname = *(GLuint *)(pc + 4);
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}
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/* The value of the GL_PROGRAM_LENGTH_ARB and GL_PROGRAM_LENGTH_NV
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* enumerants is the same.
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*/
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CALL_by_offset(GET_DISPATCH(),
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(void (GLAPIENTRYP)(GLuint, GLenum, GLint *)),
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get_programiv_offset,
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(target, GL_PROGRAM_LENGTH_ARB, &compsize));
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if (compsize != 0) {
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__GLX_GET_ANSWER_BUFFER(answer,cl,compsize,1);
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__glXClearErrorOccured();
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CALL_by_offset(GET_DISPATCH(),
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(void (GLAPIENTRYP)(GLuint, GLenum, GLubyte *)),
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get_program_string_offset,
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(target, pname, answer));
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}
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if (__glXErrorOccured()) {
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__GLX_BEGIN_REPLY(0);
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__GLX_SEND_HEADER();
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} else {
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__GLX_BEGIN_REPLY(compsize);
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((xGLXGetTexImageReply *)&__glXReply)->width = compsize;
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__GLX_SEND_HEADER();
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__GLX_SEND_VOID_ARRAY(compsize);
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}
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error = Success;
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}
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return error;
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}
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int __glXDisp_GetProgramStringARB(struct __GLXclientStateRec *cl, GLbyte *pc)
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{
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return DoGetProgramString(cl, pc, _gloffset_GetProgramivARB,
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_gloffset_GetProgramStringARB, False);
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}
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int __glXDispSwap_GetProgramStringARB(struct __GLXclientStateRec *cl, GLbyte *pc)
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{
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return DoGetProgramString(cl, pc, _gloffset_GetProgramivARB,
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_gloffset_GetProgramStringARB, True);
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}
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int __glXDisp_GetProgramStringNV(struct __GLXclientStateRec *cl, GLbyte *pc)
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{
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return DoGetProgramString(cl, pc, _gloffset_GetProgramivNV,
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_gloffset_GetProgramStringNV, False);
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}
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int __glXDispSwap_GetProgramStringNV(struct __GLXclientStateRec *cl, GLbyte *pc)
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{
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return DoGetProgramString(cl, pc, _gloffset_GetProgramivNV,
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_gloffset_GetProgramStringNV, True);
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}
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